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class="inside_rnewtil">鉗形接地電阻測試儀與數(shù)字式接地電阻測試儀的區(qū)別</h1> <div id="ihno5c4uhq" class="inside_rnewtime">點擊次數(shù)：2483 更新時間：2020-01-02</div> <div id="ihno5c4uhq" class="inside_rnewcon"><p 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">鉗形接地電阻測試儀與數(shù)字式接地電阻測試儀的區(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">目前市場上測試接地電阻使用廣泛的有兩種儀表：鉗形接地電阻測試儀和數(shù)字式接地電阻測試儀。這兩種儀表測量原理不同，測試要求的條件不同，各有優(yōu)缺點互相不能取代。</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: 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="" src="http://img71.chem17.com/9/20200102/637135536671734160971.jpg" style="height:800px; width:800px" /></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">對單點接地可借助輔助地極測試</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2點以上接地系統(tǒng)需解扣后測試</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;"><img alt="" src="http://img69.chem17.com/9/20200102/637135537172360623440.jpg" style="width:800px" /></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">（1）用數(shù)字表測試時，接地引下線是否解扣了（即被測接地極與接地系統(tǒng)是否脫離了）。如未解扣，搖表測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，而且是沒有什么意義的。請參考GB50061-97《60KV以下架空電力線路設計規(guī)范》我們時常對同一個接地極將鉗表與數(shù)字表的測量值進行對比，如果測量方法都是正確的，測試的結果會基本一致。如果操作不當測試的結果會差異較大，請注意如下問題：</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)字表測試時，特別是接地極地下干線較長時，探棒的設置是否符合下述兩個條件：探棒和接地極間的距離要符合說明書的要求，探棒和接地線或接地網(wǎng)要成垂直布局。否則數(shù)字表的測量結果是不準確的。</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）國家標準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地電阻和接地線電阻的總和，稱為接地裝置的接地電阻。”一般情況下數(shù)字表只能測量接地極的對地電阻，而無法測量接地線的電阻。鉗表測量的接地電阻是接地極的對地電阻以及接地線電阻的總和，*國家標準的要求。</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)只有幾個接地極，用鉗表測量會有一些誤差，一般會偏大一些。如果想得到準確的接地電阻值，可采用《有限點接地系統(tǒng)解算程序》進行解算。</span></p></div> <div id="ihno5c4uhq" class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-2082627.html">鉗形接地電阻儀建筑物接地系統(tǒng)的應用</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-2082584.html">ETCR2000B+防爆型鉗形接地電阻儀在加油站接地系統(tǒng)的應用</a></b></p> <span><a 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