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href="/SonList-1800102.html" class="eja">繼電保護(hù)測(cè)試儀</a></li> </ul> </div> </li> </ul> </div> </div></div> <div id="nxnzvbt5" class="inpage_right"> <div id="nxnzvbt5" class="mbx2"><a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > ETCR2000鉗形接地電阻測(cè)試儀多點(diǎn)接地使用方法</div> <div id="nxnzvbt5" class="inpage_content"> <div id="nxnzvbt5" class="nr_main_box"> <h1 class="inside_rnewtil">ETCR2000鉗形接地電阻測(cè)試儀多點(diǎn)接地使用方法</h1> <div id="nxnzvbt5" class="inside_rnewtime">點(diǎn)擊次數(shù)：915 更新時(shí)間：2023-10-03</div> <div id="nxnzvbt5" class="inside_rnewcon"><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px; box-sizing: border-box; list-style-type: none; color: rgb(229, 51, 51);"><strong microsoft="" font-size:="" white-space:="" style="padding: 0px; margin: 0px; color: rgb(68, 68, 68);"><span style="padding: 0px; margin: 0px; line-height: 20px;"><span style="padding: 0px; margin: 0px; font-size: 14px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: 宋體;">ETCR2000鉗形接地電阻測(cè)試儀</span></span></strong>多點(diǎn)接地使用（重復(fù)接地）</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;">多點(diǎn)接地是指多個(gè)接地點(diǎn)，引上線在地面上連在了一起，形成一個(gè)大地回路，比如架空輸電桿塔，多個(gè)接地連到同一設(shè)備，大樓樓頂防雷帶都是比較明顯的多點(diǎn)接地，這種情況鉗形接地電阻表比較好用，直接打開鉗口，夾住要測(cè)的線就可以，測(cè)出來的值比較準(zhǔn)。</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; color: rgb(51, 51, 51); font-family: 微軟雅黑; white-space: normal;"><img src="https://img42.chem17.com/9/20230917/638305421966138140478.jpg" alt="" data-bd-imgshare-binded="1" style="padding: 0px; margin: 0px; border: 0px; list-style-type: none; vertical-align: middle; max-width: 100%;"/><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: 宋體;"><img src="https://img42.chem17.com/9/20230917/638305421968169477282.jpg" alt="" data-bd-imgshare-binded="1" style="padding: 0px; margin: 0px; border: 0px; list-style-type: none; vertical-align: middle; max-width: 100%;"/><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none;"/></span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;">但多點(diǎn)接地還有兩種情況是需要特別注意，一種是測(cè)出來的值很大，另一種是測(cè)出來的值很小。</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;"><span style="padding: 0px; margin: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; color: rgb(229, 51, 51);">1. 測(cè)出來的值比較大</span>，但不能確定就是要測(cè)的接地點(diǎn)不合格，可能是重復(fù)接地的一個(gè)點(diǎn)值很大，導(dǎo)致測(cè)出來的值很大，檢驗(yàn)方法是重新找一個(gè)天然接地點(diǎn)，比如金屬自來水管、消防栓，用一條導(dǎo)線，把要測(cè)的點(diǎn)和天然接地點(diǎn)連接，夾這條導(dǎo)線來測(cè)，如果值合格，一樣說明這個(gè)接地點(diǎn)是合格的。（花點(diǎn)時(shí)間找一下原本的重復(fù)回路是哪一條，可以的話重新構(gòu)建一下重復(fù)接地）</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; color: rgb(51, 51, 51); font-family: 微軟雅黑; white-space: normal;"><img src="https://img42.chem17.com/9/20230917/638305421970200699171.jpg" alt="" data-bd-imgshare-binded="1" style="padding: 0px; margin: 0px; border: 0px; list-style-type: none; vertical-align: middle; max-width: 100%;"/><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;"><span style="padding: 0px; margin: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; color: rgb(229, 51, 51);">2. 測(cè)出來的值很小</span>，這種情況一般都是測(cè)的回路只是金屬本身回路，也就是金屬本身阻抗，比較小，這個(gè)表示金屬間聯(lián)通很好，不是真正的接地電阻值，這種情況，如果要檢測(cè)真正的接地電阻值，檢驗(yàn)方法是重新找一個(gè)天然接地點(diǎn)，比如金屬自來水管、消防栓，用一條導(dǎo)線，把要測(cè)的點(diǎn)和天然接地點(diǎn)連接，夾這條導(dǎo)線來測(cè)，如果值合格，一樣說明這個(gè)接地點(diǎn)是合格的。</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; color: rgb(51, 51, 51); font-family: 微軟雅黑; white-space: normal;"><img src="https://img42.chem17.com/9/20230917/638305421973013282831.jpg" alt="" data-bd-imgshare-binded="1" style="padding: 0px; margin: 0px; border: 0px; list-style-type: none; vertical-align: middle; max-width: 100%;"/><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); text-align: justify;"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px; box-sizing: border-box; list-style-type: none; color: rgb(229, 51, 51);">四、<strong microsoft="" font-size:="" white-space:="" style="padding: 0px; margin: 0px; color: rgb(68, 68, 68);"><span style="padding: 0px; margin: 0px; line-height: 20px;"><span style="padding: 0px; margin: 0px; font-size: 14px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: 宋體;">鉗形接地電阻測(cè)試儀</span></span></strong>單點(diǎn)接地</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); text-align: justify;"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;">單點(diǎn)接地主要有以下三種存在</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); text-align: justify;"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;">1. 單個(gè)接地點(diǎn)，單條引上線接到設(shè)備上</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); text-align: justify;"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;">2. 單個(gè)接地點(diǎn)，多條引上線接到不同設(shè)備上</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255); text-align: justify;"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;">3. 多個(gè)接地點(diǎn)，先連在一起，再向上線出一條或者多條引上線，接到不同設(shè)備上</span></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; color: rgb(51, 51, 51); font-family: 微軟雅黑; white-space: normal;"><img src="https://img42.chem17.com/9/20230917/638305421974888292665.jpg" alt="" data-bd-imgshare-binded="1" style="padding: 0px; margin: 0px; border: 0px; list-style-type: none; vertical-align: middle; max-width: 100%;"/><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; font-size: 12px; background-color: rgb(255, 255, 255);"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px; box-sizing: border-box; list-style-type: none;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><br style="padding: 0px; margin: 0px;"/></p><p style="padding: 0px; margin-top: 0px; margin-bottom: 10px; line-height: 30px; font-size: 12px; white-space: normal; box-sizing: border-box; list-style-type: none; color: rgb(68, 68, 68); font-family: "Microsoft YaHei", Verdana, Arial, Helvetica, sans-serif; background-color: rgb(255, 255, 255);"><span style="padding: 0px; margin: 0px; font-size: 16px; line-height: 20px;"><span style="padding: 0px; margin: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: 宋體;">從測(cè)試原理來說，</span><span style="padding: 0px; margin: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: Calibri;">ETCR2000A</span>鉗表只能測(cè)量回路電阻，對(duì)單點(diǎn)接地是測(cè)不出來的。但是，用戶可以利用一根測(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<span style="padding: 0px; margin: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: 宋體;">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</span><span style="padding: 0px; margin: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: Calibri;">ETCR2000A</span>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，方法有兩種：</span></p><p><br/></p></div> <div id="nxnzvbt5" class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-3500233.html">大電流發(fā)生器工作原理</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-3490184.html">ETCR2000鉗形接地電阻測(cè)試儀三點(diǎn)法測(cè)試方法</a></b></p> <span><a href="/article.html">返回列表>></a></span> </div> </div> </div> </div> </div>    <div class="nxnzvbt5" id="z_Footer"> <div id="nxnzvbt5" class="pz_down"> <div id="nxnzvbt5" class="w_1200"> <div id="nxnzvbt5" class="footT"> <div id="nxnzvbt5" class="footAddr"> <div id="nxnzvbt5" class="footTit">上?？档请姎饪萍加邢薰?/div> <div id="nxnzvbt5" class="dAddr"><img class="ico" src="/Skins/334632/images/icon_foot1.png">地址：上海市普陀區(qū)金通路1118弄6號(hào)</div> <div id="nxnzvbt5" class="dAddr"><img class="ico" src="/Skins/334632/images/icon_foot2.png">電話：21-51097529/021-51098529</div> <div id="nxnzvbt5" class="dAddr"><img class="ico" 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