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margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; text-align: center; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; font-size:24px; outline:0px; text-size-adjust:none">ETCR2000系列鉗形接地電阻儀</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; text-align: center; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:24px; outline:0px; text-size-adjust:none">現(xiàn)場(chǎng)應(yīng)用</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; text-align: center; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/D2/CgAGfFtWyUmAKhFuAABEQRMP8I8276.jpg" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:200px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; text-align: center; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/D2/CgAGfFtWyUaAJ9JYAADrqNrVQMM633.jpg" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:455px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:16px; outline:0px; text-size-adjust:none"> </span></span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/D2/CgAGfFtWyUeAA3MJAAJE00myCS0454.jpg" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:332px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; text-align: center; line-height: 2em;"> <img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/D2/CgAGfFtWyUiAOnhpAAJLBGoHGbQ783.jpg" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:307px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:16px; outline:0px; text-size-adjust:none"> </span></span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/D2/CgAGfFtWyUmAdvG-AAK__VmL2j0609.jpg" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:325px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; text-align: center; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">ETCR2000</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">1.<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; font-weight:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">鉗表結(jié)構(gòu)</span></strong></span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/E0/CgAGfFtW0V2AI5riAACRJGUUtdA582.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:249px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">1）. 鉗頭:65×32mm</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">2）. HOLD鍵：鎖定/解除顯示/存儲(chǔ)</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">3）. 扳機(jī)：控制鉗口張合</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">4）. ON/OFF鍵：開(kāi)機(jī)/關(guān)機(jī)/退出/組合清除數(shù)據(jù)</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">5）. MEM鍵：數(shù)據(jù)查閱鍵/組合清除數(shù)據(jù)</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">6）. * 電阻測(cè)量切換鍵Ω/右箭頭鍵</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">7）. *電流測(cè)量切換鍵A/左箭頭鍵</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">8）. AL報(bào)警功能鍵：報(bào)警功能開(kāi)啟/關(guān)閉/報(bào)警臨界值設(shè)定</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">9）. 液晶顯示屏</span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">注：“*”僅限于C型。</span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">2. 系列型號(hào)</strong></span></p><table border="1" cellpadding="0" cellspacing="0" class="ueditorTableStyle" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border-collapse:collapse; border-spacing:0px; box-sizing:border-box; color:rgb(136, 136, 136); empty-cells:show; font-family:微軟雅黑; font-size:14px; margin:0px 0px 10px; max-width:100%; outline:0px; padding:0px; text-size-adjust:none; width:853px"><tbody style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border: 1px solid rgb(221, 221, 221);" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">型號(hào)</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">電阻量程</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">電流量程</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">說(shuō)明</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">ETCR2000+</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.01-1200Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"> </td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">基礎(chǔ)型</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">ETCR2000A+</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.01-200Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"> </td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">實(shí)用型</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">ETCR2000B+</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.01-1200Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"> </td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">防爆型</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">ETCR2000C+</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.01-1200Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0-20A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">多功能</span></p></td></tr></tbody></table><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">3. 主要技術(shù)參數(shù)</strong></span></p><table border="1" cellpadding="0" cellspacing="0" class="ueditorTableStyle" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border-collapse:collapse; border-spacing:0px; box-sizing:border-box; color:rgb(136, 136, 136); empty-cells:show; font-family:微軟雅黑; font-size:14px; margin:0px 0px 10px; max-width:100%; outline:0px; padding:0px; text-size-adjust:none; width:853px"><tbody style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border: 1px solid rgb(221, 221, 221);" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗口尺寸</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">65mm×32mm</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗口張開(kāi)尺寸</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">32mm</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗表尺寸</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">長(zhǎng)寬厚285mm×85mm×56mm</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="72" rowspan="2" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗表質(zhì)量</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">1160g（含電池）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td colspan="3" height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">(han</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="360" rowspan="10" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">電阻量程</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">測(cè)量范圍</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">分辨力</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">準(zhǔn)確度</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.010Ω-0.099Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.001Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（1%＋0.01Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.10Ω-0.99Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.01Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（1%＋0.01Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">1.0Ω-49.9Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.1Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（1%＋0.1Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">50.0Ω-99.5Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.5Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（1.5%＋0.5Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">100Ω-199Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">1Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2%＋1Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">200Ω-395Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">5Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（5%＋5Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">400-590Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">10Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（10%＋10Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">600Ω-880Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">20Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（20%＋20Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">900Ω-1200Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">30Ω</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（25%＋30Ω）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="216" rowspan="6" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">電流量程</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.00mA -9.95mA</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.05mA</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2.5%＋1mA）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">10.0mA -99.0mA</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.1mA</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2.5%＋5mA）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">100mA -300mA</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">1mA</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2.5%＋10mA）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.30A-2.99A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.01A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2.5%＋0.1A）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">3.0A-9.9A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.1 A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2.5%＋0.3A）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">10.0A-20.0A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.1 A</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">±（2.5%＋0.5A）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">電源</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">6VDC（4節(jié)5號(hào)堿性干電池LR6）</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">換檔</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">全自動(dòng)換檔</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">單次測(cè)量時(shí)間</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">0.5秒</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">液晶顯示器</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">4位LCD數(shù)字顯示，長(zhǎng)寬47mm×28.5mm</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">數(shù)據(jù)存儲(chǔ)</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">99組</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">聲光報(bào)警</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">“嘟--嘟--嘟--”報(bào)警聲，按AL鍵開(kāi)、關(guān)</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">報(bào)警臨界值設(shè)定范圍</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"> 電阻：1-199Ω；電流：1-499mA</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">防爆標(biāo)志</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">Exia Ⅱ BT3 Ga</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">計(jì)量制造許可證</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">粵制0000741號(hào)</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">企業(yè)生產(chǎn)標(biāo)準(zhǔn)</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">Q/（GZ）YTDZ1-2007</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="213"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">隨機(jī)附件</span></p></td><td colspan="3" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="640"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗表：1件；測(cè)試環(huán)：1件；電池LR6：4節(jié)；儀表箱： 1件</span></p></td></tr></tbody></table><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">4. 電阻測(cè)量原理</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-indent:0em; text-size-adjust:none">ETCR2000系列鉗表的基本原理是測(cè)量封閉回路的電阻。如下圖所示。鉗表在被測(cè)回路上感應(yīng)一個(gè)電勢(shì)E，在電勢(shì)E的作用下被測(cè)回路上產(chǎn)生一個(gè)電流I。鉗表對(duì)E及I進(jìn)行測(cè)量，并通過(guò)下面的公式即可得到被測(cè)電阻R：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-align: center; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/EE/CgAGfFtW3LeAdXWUAAAJBolo9CM802.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:133px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"> </span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/EE/CgAGfFtW3LiABngnAABVNk6YWZ4583.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:141px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">因此，ETCR2000鉗表所測(cè)的接地電阻是接地極對(duì)地電阻以及接地線電阻的總和。它還可以測(cè)量回路的連接情況。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">我們?cè)诂F(xiàn)場(chǎng)測(cè)量時(shí)必須注意被測(cè)裝置的接地是否形成回路。如果沒(méi)有回路，必須借助輔助地極和測(cè)試線也可以測(cè)出它的接地電阻值。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none"> </span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">5. 正確開(kāi)機(jī)</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">按下鉗表的POWER按鈕后，鉗表即處于開(kāi)機(jī)自檢狀態(tài)。待液晶屏上顯示“OLΩ”后，自檢狀態(tài)結(jié)束。如鉗表未能顯示“OLΩ”，請(qǐng)按動(dòng)鉗表手柄，讓鉗口張合兩次重新開(kāi)機(jī)。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">因此，當(dāng)按下POWER按鈕后到液晶屏顯示“OLΩ”的這段時(shí)間內(nèi)（自檢時(shí)間約1秒），鉗表不可鉗繞任何金屬導(dǎo)體，不能翻轉(zhuǎn)鉗表，亦不可壓按鉗表的手柄和鉗口，應(yīng)使鉗表處于自然閉合的靜止?fàn)顟B(tài)。否則不能完成自檢，將對(duì)測(cè)量誤差帶來(lái)很大影響。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">開(kāi)機(jī)出錯(cuò)鉗表顯示“Er”開(kāi)機(jī)出錯(cuò)符號(hào)。</span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/EF/CgAGfFtW3gaACpgbAAA3OqhOOSI377.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; font-family:微軟雅黑,sans-serif; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:135px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">開(kāi)機(jī)正確鉗表顯示“OLΩ”，用戶(hù)可以如右圖所示用隨機(jī)的測(cè)試環(huán)檢驗(yàn)一下。鉗表顯示值應(yīng)該與測(cè)試環(huán)上的標(biāo)稱(chēng)值一致（5.1Ω）。顯示值與標(biāo)稱(chēng)值相差一個(gè)字，是正常的。如：測(cè)試環(huán)的標(biāo)稱(chēng)值為5.1Ω時(shí)，顯示5.0Ω或5.2Ω都是正常的。用戶(hù)可放心使用。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">鉗表的具體操作方法請(qǐng)參考使用說(shuō)明書(shū)。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none"> </span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">6. ETCR2000系列鉗表在各種接地系統(tǒng)的應(yīng)用。</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">一般情況下，我們將接地系統(tǒng)分為三種：多點(diǎn)接地系統(tǒng)、有限點(diǎn)接地系統(tǒng)、單點(diǎn)接地系統(tǒng)。下面介紹ETCR2000在這三種種接地系統(tǒng)的應(yīng)用</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">1</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">）多點(diǎn)接地系統(tǒng)的應(yīng)用</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">多點(diǎn)接地系統(tǒng)（例如輸電系統(tǒng)桿塔接地、通信電纜接地系統(tǒng)、某些建筑物等），它們通過(guò)架空地線（通信電纜的屏蔽層）連接，組成了多點(diǎn)接地系統(tǒng)。見(jiàn)下圖。當(dāng)用鉗表測(cè)量時(shí)，其等效電路如下：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/F0/CgAGfFtW4EGAc2_eAACDiwEqJ2E196.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:400px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/B6/F0/CgAGfFtW4EKAQebXAABMAwZRwYA879.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:340px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">其中：R<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:12px; line-height:0; outline:0px; position:relative; text-size-adjust:none; vertical-align:baseline">1</span>為待測(cè)的接地電阻。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">R<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:12px; line-height:0; outline:0px; position:relative; text-size-adjust:none; vertical-align:baseline">0</span>為所有其它桿塔的接地電阻并聯(lián)后的等效電阻。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">由于接地點(diǎn)數(shù)量很多，從工程角度設(shè)定R<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:12px; line-height:0; outline:0px; position:relative; text-size-adjust:none; vertical-align:baseline">0</span>=0。這樣，我們所測(cè)的電阻就應(yīng)該是R<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:12px; line-height:0; outline:0px; position:relative; text-size-adjust:none; vertical-align:baseline">1</span>了。多次不同環(huán)境、不同場(chǎng)合下與傳統(tǒng)方法進(jìn)行對(duì)比試驗(yàn)，證明上述設(shè)定是*正確的。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">對(duì)于多點(diǎn)接地系統(tǒng)，無(wú)需斷開(kāi)接地引線，無(wú)需輔助地極，只需用ETCR2000+鉗表鉗住接地引線即可測(cè)出阻值。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">2）有限點(diǎn)接地系統(tǒng)的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">有些桿塔接地系統(tǒng)是由數(shù)個(gè)桿塔通過(guò)架空地線彼此相連；某些建筑物的接地也不是一個(gè)獨(dú)立的接地網(wǎng)，而是幾個(gè)接地體通過(guò)導(dǎo)線彼此連接。這種3個(gè)以上10個(gè)以下的接地系統(tǒng)我們稱(chēng)為有限點(diǎn)接地系統(tǒng)。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">這種情況也較普遍。在這種情況下，如果將上圖中的R0視為0則會(huì)對(duì)測(cè)量結(jié)果帶來(lái)較大誤差。可以通過(guò)一組非線性方程組把阻值解算出來(lái)，但是人工解算它是十分困難的。為此，我公司提供了“有限點(diǎn)接地系統(tǒng)解算程序軟件”，用戶(hù)可在PC機(jī)上進(jìn)行機(jī)解。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-align: center; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><img src='https://0.rc.xiniu.com/g2/M00/B6/F1/CgAGfFtW4VKASxT0AAE9Y-HzKBI512.jpg' style='width:800px;'></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">3）單點(diǎn)接地系統(tǒng)的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">從測(cè)試原理來(lái)說(shuō)，ETCR2000系列鉗表只能測(cè)量回路電阻，對(duì)單點(diǎn)接地是測(cè)不出來(lái)的。但是，用戶(hù)*可以利用一根測(cè)試線及接地系統(tǒng)附近的接地極，人為地制造一個(gè)回路進(jìn)行測(cè)試。下面介紹二種用鉗表測(cè)量單點(diǎn)接地的方法，此方法可應(yīng)用于傳統(tǒng)的數(shù)字式接地電阻表無(wú)法測(cè)試的場(chǎng)合。例如地下室內(nèi)或樓層上的機(jī)房、避雷針、電梯、加油站、被混凝土覆蓋的接地體、以及無(wú)法從系統(tǒng)中分離的接地體等等，使用數(shù)字式接地電阻表測(cè)量接地電阻是非常困難的，但ETCR2000鉗表利用輔助地極和一根測(cè)試線就可以測(cè)算出它們的接地電阻。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">（</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">a</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">）．</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">二點(diǎn)法</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">見(jiàn)下圖，在被測(cè)接地體RA附近找一個(gè)獨(dú)立的接地較好的接地體RB（例如臨近的自來(lái)水管、建筑物等）。將RA和RB用一根測(cè)試線連接起來(lái)。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 24px; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D0/CgAGe1tW4R6ARGVDAAB-dY1NmF0340.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:573px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">由于鉗表所測(cè)的阻值是兩個(gè)接地電阻和測(cè)試線阻值的串聯(lián)值：RT=RA+RB+RL</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">其中：RT為鉗表所測(cè)的阻值。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">RL為測(cè)試線的阻值。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">將測(cè)試線頭尾相連即可用鉗表測(cè)出其阻值RL。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">所以，如果鉗表的測(cè)量值小于接地電阻的允許值，那么這兩個(gè)接地體的接地電阻都是合格的。如果輔助地極接地良好（如消防栓、建筑物大地網(wǎng)等），由于輔助地極的接地電阻很小，所以被測(cè)地極的接地電阻近似于鉗表所測(cè)的阻值。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">（</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">b</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">）．</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">三點(diǎn)法</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">三點(diǎn)法可以準(zhǔn)確測(cè)算出接地極的阻值。如下圖，在被測(cè)接地體RA附近找二個(gè)獨(dú)立的接地體RB和RC。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">di一步，將RA和RB用一根測(cè)試線連接起來(lái)，見(jiàn)下圖。用鉗表讀得di一個(gè)數(shù)據(jù)R1。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D4/CgAGe1tW4_eAFZH5AABydVa5mp0909.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:398px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">第二步，將RB和RC連接起來(lái)，見(jiàn)下圖。用鉗表讀得第二個(gè)數(shù)據(jù)R2。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"> </span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D5/CgAGe1tW5FGAFNqcAAB0ab3DK54104.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:397px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">第三步，將RC和RA連接起來(lái)，見(jiàn)下圖。用鉗表讀得第三個(gè)數(shù)據(jù)R3。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D5/CgAGe1tW5HOAB3sFAABtzXYYdIk075.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:399px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">上面三步中，每一步所測(cè)得的讀數(shù)都是兩個(gè)接地電阻的串聯(lián)值。這樣，就可以很容易地計(jì)算出每一個(gè)接地電阻值：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">由于： R1=RA+RB R2=RB+RC R3=RC+RA</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">所以： RA=（R1+R3-R2）÷2</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">這就是接地體RA的接地電阻值。為了便于記憶上述公式，可將三個(gè)接地體看作一個(gè)三角形，則被測(cè)電阻等于鄰邊電阻相加減對(duì)邊電阻除以2。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">其它兩個(gè)作為參照物的接地體的接地電阻值為：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">RB=R1-RA RC=R3-RA</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">7. 電力系統(tǒng)的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">(1) 輸電線桿塔接地電阻的測(cè)量：</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">通常輸電線路桿塔接地構(gòu)成多點(diǎn)接地系統(tǒng)，只需用ETCR鉗表鉗住接地引下線，即可測(cè)出該支路的接地電阻阻值。（請(qǐng)見(jiàn)下圖）</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"> </span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D5/CgAGe1tW5aaADNysAABMY41dKeM113.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:560px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">注：測(cè)試時(shí)如鉗表顯示“L 0.01Ω”，說(shuō)明同一個(gè)桿塔有兩根接地引下線并在地下連接，測(cè)試時(shí)應(yīng)將另一根引線解扣。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">(2) 變壓器中性點(diǎn)接地電阻的測(cè)量</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">變壓器中性點(diǎn)接地有二種情形：如有重復(fù)接地則構(gòu)成多點(diǎn)接地系統(tǒng)；如無(wú)重復(fù)接地按單點(diǎn)接地測(cè)量。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">(3) 發(fā)電廠變電所的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">ETCR2000鉗表可以測(cè)試回路的接觸情況和連接情況。借助一根測(cè)試線，可以測(cè)量站內(nèi)裝置與地網(wǎng)的連接情況。接地電阻可按單點(diǎn)接地測(cè)量。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">8. 電信系統(tǒng)的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">（1）樓層機(jī)房接地電阻的測(cè)量</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">電信系統(tǒng)的機(jī)房往往設(shè)在樓房的上層，使用搖表測(cè)量非常困難。而用ETCR2000鉗表測(cè)試則非常方便，用一根測(cè)試線連接消防栓和被測(cè)接地極（機(jī)房?jī)?nèi)都設(shè)有消防栓），然后用鉗表測(cè)量測(cè)試線。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗表阻值 = 機(jī)房接地電阻 + 測(cè)試線阻值 + 消防栓接地電阻</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">如果消防栓接地電阻很小，則：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">機(jī)房接地電阻 ≈ 鉗表阻值 - 測(cè)試線阻值</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">（2）機(jī)房、發(fā)射塔接地電阻的測(cè)量</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">機(jī)房、發(fā)射塔接地通常構(gòu)成二點(diǎn)接地系統(tǒng)，如下圖。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D5/CgAGe1tW5qqAXVvBAABQN96jSuE981.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:390px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">如果鉗表的測(cè)量值小于接地電阻的允許值，那么機(jī)房、發(fā)射塔的接地電阻都是合格的。如果鉗表的測(cè)量值大于允許值，請(qǐng)按單點(diǎn)接地進(jìn)行測(cè)量。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">9. 建筑物接地系統(tǒng)的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">如果建筑物的各接地極是獨(dú)立的，各接地極的接地電阻測(cè)量請(qǐng)見(jiàn)下圖。</span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D8/CgAGe1tW6JeAR8AVAABZh-CXr_A269.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:401px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">如果建筑物的各接地極在地下是連接的，測(cè)量的是金屬回路的阻值。接地電阻測(cè)量請(qǐng)參考單點(diǎn)接地的測(cè)量。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">10. ETCR2000B+防爆型鉗形接地電阻儀在加油站接地系統(tǒng)的應(yīng)用</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">根據(jù)JJF2-2003《接地式防靜電裝置檢測(cè)規(guī)范》，加油站主要需測(cè)試如下設(shè)施的接地電阻及連接電阻。測(cè)試時(shí)使用的儀器必須滿足GB3836-2000《爆炸性氣體環(huán)境用電氣設(shè)備》的要求。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"> </p><table border="1" cellpadding="0" cellspacing="0" class="ueditorTableStyle" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border-collapse:collapse; border-spacing:0px; box-sizing:border-box; color:rgb(136, 136, 136); empty-cells:show; font-family:微軟雅黑; font-size:14px; margin:0px 0px 10px; max-width:100%; outline:0px; padding:0px; text-size-adjust:none; width:848px"><tbody style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border: 1px solid rgb(221, 221, 221);" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">序號(hào)</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">檢測(cè)項(xiàng)目</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">技術(shù)要求</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">1</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">儲(chǔ)油罐接地電阻</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">≤10Ω</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">2</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">裝卸點(diǎn)接地電阻</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">≤10Ω</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">3</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">加油機(jī)接地電阻</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">≤4Ω</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">4</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">加油機(jī)輸油軟管連接電阻</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="283"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">≤5Ω</span></p></td></tr></tbody></table><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">ETCR2000B+鉗表已通過(guò)防爆認(rèn)證。其防爆標(biāo)志為ExiaⅡBT3 Ga。防爆合格證號(hào)：CE13.2263。它可應(yīng)用于相應(yīng)的易燃易爆環(huán)境中。下面簡(jiǎn)述ETCR2000B防爆型鉗形接地電阻儀在加油站接地系統(tǒng)的應(yīng)用。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">(1) 儲(chǔ)油罐、裝卸點(diǎn)接地電阻的測(cè)量：</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D9/CgAGe1tW6mKAZpnVAAC4KJh_8B0826.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:339px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">如上圖，在加油站接地系統(tǒng)中，儲(chǔ)油罐接地極A與加油機(jī)相連接，裝卸點(diǎn)接地極C是一個(gè)獨(dú)立的接地極。再找一個(gè)獨(dú)立的接地極作為輔助接地極B（如消防栓等），按三點(diǎn)法用鉗表分別測(cè)出R1、R2和R3。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">則可計(jì)算出：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">儲(chǔ)油罐接地電阻為： RA=（R1+R2-R3）÷2</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">裝卸點(diǎn)接地電阻為： RC=R2-RA</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">輔助地極接地電阻為： RB=R1-RA</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">注：測(cè)R1時(shí)，BC、AC間不能有導(dǎo)線連接。測(cè)R2、R3時(shí)類(lèi)推。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">(2) 加油機(jī)接地電阻的測(cè)量:</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"> </span><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/D9/CgAGe1tW6yOAXn5FAACA1xFgyj4637.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:307px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">如上圖，找一個(gè)與加油機(jī)接地極互相獨(dú)立的接地極，如裝卸點(diǎn)接地極等。用測(cè)試線將兩點(diǎn)連接起來(lái)，用鉗表測(cè)出讀數(shù)RT。則可計(jì)算出：加油機(jī)接地電阻為:</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">R=RT-RC</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">其中: RT為鉗表所測(cè)阻值。RC為裝卸點(diǎn)接地電阻。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">（3）加油機(jī)輸油軟管連接電阻的測(cè)量:</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">用一根測(cè)試線將加油槍和加油機(jī)連接起來(lái)。用鉗表測(cè)出讀數(shù)RT。則可計(jì)算出：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">加油機(jī)軟管連接電阻為: R=RT-RL</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">其中: RT為鉗表所測(cè)阻值。RL為測(cè)試線的電阻。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none"> <img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/DA/CgAGe1tW7CWAK3xgAABohUs-mR8892.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:300px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">11. 鉗表測(cè)量點(diǎn)的選擇：</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">測(cè)試接地電阻時(shí)測(cè)量點(diǎn)的選擇是十分重要的。（請(qǐng)見(jiàn)下圖）</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">在A點(diǎn)測(cè)量時(shí)鉗表顯示“OLΩ”，沒(méi)有形成回路，測(cè)量點(diǎn)是錯(cuò)誤的。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">在B點(diǎn)測(cè)量時(shí)鉗表顯示“L0.01Ω”，測(cè)試的是金屬回路的阻值，測(cè)量點(diǎn)是錯(cuò)誤的。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">在C點(diǎn)測(cè)量才是正確的。</span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><img alt="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" border="0" src="https://0.rc.xiniu.com/g2/M00/AB/DA/CgAGe1tW7F-AZ6inAACsI1vtLUk779.png" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border:0px none; box-sizing:border-box; height:auto; max-width:100%; outline:0px; text-size-adjust:none; vertical-align:top; width:308px" title="ETCR2000系列鉗形接地電阻儀現(xiàn)場(chǎng)應(yīng)用" /></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px;"> </p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">12. 使用鉗表的其他注意事項(xiàng)</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">開(kāi)機(jī)前，扣壓扳機(jī)一兩次，確保鉗口閉合良好。</span></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">正確開(kāi)機(jī)，顯示“OL Ω”符號(hào)后，才能鉗測(cè)接地線。</span></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">鉗口接觸平面必須保持清潔，不能用腐蝕劑和粗糙物擦拭。</span></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">本鉗表是精密儀器，避免鉗表受沖擊，尤其是鉗口接合面。</span></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u</span><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-stretch:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span>本鉗表在測(cè)量電阻時(shí)鉗頭會(huì)發(fā)出連續(xù)的輕微“嗡--”聲，這是正常的，注意區(qū)別報(bào)警的“嘟--嘟--嘟--”聲。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">長(zhǎng)時(shí)間不用本鉗表，請(qǐng)取出電池。</span></span></p><p style="box-sizing: border-box; margin: 0px 0px 0px 28px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:wingdings; outline:0px; text-size-adjust:none">u<span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-size:9px; font-stretch:normal; font-variant-numeric:normal; line-height:normal; outline:0px; text-size-adjust:none"> </span></span><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">C</span></strong><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none">型鉗表可以測(cè)試接地線上的漏電流，但禁止用鉗表鉗測(cè)動(dòng)力線電流，鉗測(cè)大電流會(huì)對(duì)鉗表的磁環(huán)造成不可逆轉(zhuǎn)的損壞，甚至?xí)斐摄Q表的報(bào)廢。</span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; font-family:微軟雅黑,sans-serif; outline:0px; text-size-adjust:none"> </span></strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none"><strong style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; outline:0px; text-size-adjust:none">13. 鉗形接地電阻測(cè)試儀與數(shù)字式接地電阻測(cè)試儀的區(qū)別</strong></span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-family:微軟雅黑,sans-serif; font-size:16px; outline:0px; text-size-adjust:none">目前市場(chǎng)上測(cè)試接地電阻使用廣泛的有兩種儀表：鉗形接地電阻測(cè)試儀和數(shù)字式接地電阻測(cè)試儀。這兩種儀表測(cè)量原理不同，測(cè)試要求的條件不同，各有優(yōu)缺點(diǎn)互相不能取代。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 0em; line-height: 2em;"> </p><table border="1" cellpadding="0" cellspacing="0" class="ueditorTableStyle" style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); border-collapse:collapse; border-spacing:0px; box-sizing:border-box; color:rgb(136, 136, 136); empty-cells:show; font-family:微軟雅黑; font-size:14px; margin:0px 0px 10px; max-width:100%; outline:0px; padding:0px; text-size-adjust:none; width:880px"><tbody style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border: 1px solid rgb(221, 221, 221);" width="123"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">項(xiàng)目</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">鉗形接地電阻表</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: 1px solid rgb(221, 221, 221); border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">數(shù)字式接地電阻表</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="123"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">測(cè)量方式</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">非接觸測(cè)量</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">接觸式測(cè)量</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="123"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">測(cè)量原理</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">測(cè)量回路電阻</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">額定電流變極法</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="123"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">測(cè)試條件</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">接地系統(tǒng)必須形成回路</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">必須有土壤鋪設(shè)接地針</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="72" rowspan="2" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="123"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">適合接地系統(tǒng)</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">特別適合多點(diǎn)接地系統(tǒng)</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">特別適合單點(diǎn)接地系統(tǒng)</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">對(duì)單點(diǎn)接地可借助輔助地極測(cè)試</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">對(duì)2點(diǎn)以上接地系統(tǒng)需解扣后測(cè)試</span></p></td></tr><tr style="box-sizing: border-box; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0);"><td height="36" style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: 1px solid rgb(221, 221, 221); border-image: initial;" width="123"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">效率</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">操作簡(jiǎn)單快捷</span></p></td><td style="box-sizing: border-box; padding: 5px 10px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); margin: 0px; background-image: initial; background-position: initial; background-size: initial; background-repeat: initial; background-attachment: initial; background-origin: initial; background-clip: initial; border-top: none; border-right: 1px solid rgb(221, 221, 221); border-bottom: 1px solid rgb(221, 221, 221); border-left: none; border-image: initial;" width="379"><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">由于需鋪設(shè)輔助接地針，操作較繁瑣</span></p></td></tr></tbody></table><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">（1）用數(shù)字表測(cè)試時(shí)，接地引下線是否解扣了（即被測(cè)接地極與接地系統(tǒng)是否脫離了）。如未解扣，搖表測(cè)量的阻值是接地系統(tǒng)所有接地電阻的并聯(lián)值，該并聯(lián)值比接地極的接地電阻小很多，而且是沒(méi)有什么意義的。請(qǐng)參考GB50061-97《60KV以下架空電力線路設(shè)計(jì)規(guī)范》我們時(shí)常對(duì)同一個(gè)接地極將鉗表與數(shù)字表的測(cè)量值進(jìn)行對(duì)比，如果測(cè)量方法都是正確的，測(cè)試的結(jié)果會(huì)基本一致。如果操作不當(dāng)測(cè)試的結(jié)果會(huì)差異較大，請(qǐng)注意如下問(wèn)題：</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">（2）用數(shù)字表測(cè)試時(shí)，特別是接地極地下干線較長(zhǎng)時(shí)，探棒的設(shè)置是否符合下述兩個(gè)條件：探棒和接地極間的距離要符合說(shuō)明書(shū)的要求，探棒和接地線或接地網(wǎng)要成垂直布局。否則數(shù)字表的測(cè)量結(jié)果是不準(zhǔn)確的。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">（3）國(guó)家標(biāo)準(zhǔn)GL/T621-1997《交流電氣裝置的接地》規(guī)定：“接地極或自然接地極的對(duì)地電阻和接地線電阻的總和，稱(chēng)為接地裝置的接地電阻。”一般情況下數(shù)字表只能測(cè)量接地極的對(duì)地電阻，而無(wú)法測(cè)量接地線的電阻。鉗表測(cè)量的接地電阻是接地極的對(duì)地電阻以及接地線電阻的總和，*國(guó)家標(biāo)準(zhǔn)的要求。</span></p><p style="box-sizing: border-box; margin: 0px; outline: 0px; text-size-adjust: none; -webkit-tap-highlight-color: rgba(0, 0, 0, 0); padding: 0px; color: rgb(136, 136, 136); font-family: 微軟雅黑; font-size: 14px; text-indent: 2em; line-height: 2em;"><span style="-webkit-tap-highlight-color:rgba(0, 0, 0, 0); box-sizing:border-box; color:rgb(63, 63, 63); font-size:16px; outline:0px; text-size-adjust:none">（4）如果接地系統(tǒng)只有幾個(gè)接地極，用鉗表測(cè)量會(huì)有一些誤差，一般會(huì)偏大一些。如果想得到準(zhǔn)確的接地電阻值，可采用《有限點(diǎn)接地系統(tǒng)解算程序》進(jìn)行解算。</span></p> <div id="yq00aqiue" class="clear"></div> </div> <div id="yq00aqiue" class="article"> <p>上一篇：<a href="/Article-2089415.html">夾具電橋夾具電纜夾具簡(jiǎn)介</a></p> <p>下一篇：<a href="/Article-2082449.html">接地電阻測(cè)試儀測(cè)量接地的幾種方法</a></p> </div> <div id="yq00aqiue" class="clear"></div> </div> </div> <div id="yq00aqiue" class="n-9"> <div id="yq00aqiue" class="c-right"> <div id="yq00aqiue" class="c-1 r-pro"> <div id="yq00aqiue" class="c-left"> <div id="yq00aqiue" class="h-2"><a href="/products.html">產(chǎn)品分類(lèi)</a></div> <ul> <li><a href="/ParentList-1388067.html" onmouseover="showsubmenu('大電流發(fā)生器')" class="yj">大電流發(fā)生器</a> <div class="yq00aqiue" id="submenu_大電流發(fā)生器" style="display:none"> <ul> </ul> </div> </li> <li><a href="/ParentList-1384344.html" onmouseover="showsubmenu('LCR數(shù)字電橋')" class="yj">LCR數(shù)字電橋</a> <div 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