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class="nymiddlezty"> <div id="eqckvv83f" class="mianbao">您現(xiàn)在的位置：<a href="/">首頁</a> > <a href="/news.html">新聞動態(tài)</a> > 分享ETCR2000鉗形接地電阻測試儀多點接地使用方法</div> <div id="eqckvv83f" class="about_con"> <h1 class="newstit">分享ETCR2000鉗形接地電阻測試儀多點接地使用方法</h1> <div id="eqckvv83f" class="newstime"> <span id="eqckvv83f" class="skim"><em>瀏覽次數(shù)：</em>1909</span><span id="eqckvv83f" class="skimtim"><em>發(fā)布日期：</em>2024-05-24 </span> </div> <p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 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="margin: 0px; padding: 0px; color: rgb(68, 68, 68);"><span style="margin: 0px; padding: 0px; line-height: 20px;"><span style="margin: 0px; padding: 0px; font-size: 14px; line-height: 20px; box-sizing: border-box; list-style-type: none;">ETCR2000鉗形接地電阻測試儀</span></span></strong>多點接地使用（重復接地）</span></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;">多點接地是指多個接地點，引上線在地面上連在了一起，形成一個大地回路，比如架空輸電桿塔，多個接地連到同一設(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，夾住要測的線就可以，測出來的值比較準。</span></p><p style="margin-top: 0px; margin-bottom: 10px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: 微軟雅黑; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);"><img src="https://img46.afzhan.com/9/20240524/638521609036041146352.jpg" alt="分享ETCR2000鉗形接地電阻測試儀多點接地使用方法" data-bd-imgshare-binded="1" style="max-width: 98%; height: auto; margin: 0px; padding: 0px; max-height: 100%; vertical-align: middle; list-style-type: none;" /></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px; box-sizing: border-box; list-style-type: none;"><img src="https://img60.afzhan.com/9/20240524/638521609037634793398.jpg" alt="分享ETCR2000鉗形接地電阻測試儀多點接地使用方法" data-bd-imgshare-binded="1" style="max-width: 98%; height: auto; margin: 0px; padding: 0px; max-height: 100%; vertical-align: middle; list-style-type: none;" /><br data-filtered="filtered" style="margin: 0px; padding: 0px; box-sizing: border-box; list-style-type: none;" /></span></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;">但多點接地還有兩種情況是需要特別注意，一種是測出來的值很大，另一種是測出來的值很小。</span></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;"><span style="margin: 0px; padding: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; color: rgb(229, 51, 51);">1. 測出來的值比較大</span>，但不能確定就是要測的接地點不合格，可能是重復接地的一個點值很大，導致測出來的值很大，檢驗方法是重新找一個天然接地點，比如金屬自來水管、消防栓，用一條導線，把要測的點和天然接地點連接，夾這條導線來測，如果值合格，一樣說明這個接地點是合格的。（花點時間找一下原本的重復回路是哪一條，可以的話重新構(gòu)建一下重復接地）</span></p><p style="margin-top: 0px; margin-bottom: 10px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: 微軟雅黑; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);"><img src="https://img60.afzhan.com/9/20240524/638521609039509777806.jpg" alt="分享ETCR2000鉗形接地電阻測試儀多點接地使用方法" data-bd-imgshare-binded="1" style="max-width: 98%; height: auto; margin: 0px; padding: 0px; max-height: 100%; vertical-align: middle; list-style-type: none;" /></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;"><span style="margin: 0px; padding: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; color: rgb(229, 51, 51);">2. 測出來的值很小</span>，這種情況一般都是測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，如果要檢測真正的接地電阻值，檢驗方法是重新找一個天然接地點，比如金屬自來水管、消防栓，用一條導線，把要測的點和天然接地點連接，夾這條導線來測，如果值合格，一樣說明這個接地點是合格的。</span></p><p style="margin-top: 0px; margin-bottom: 10px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: 微軟雅黑; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);"><img src="https://img60.afzhan.com/9/20240524/638521609041228579250.jpg" alt="分享ETCR2000鉗形接地電阻測試儀多點接地使用方法" data-bd-imgshare-binded="1" style="max-width: 98%; height: auto; margin: 0px; padding: 0px; max-height: 100%; vertical-align: middle; list-style-type: none;" /></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" text-align:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 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="margin: 0px; padding: 0px; color: rgb(68, 68, 68);"><span style="margin: 0px; padding: 0px; line-height: 20px;"><span style="margin: 0px; padding: 0px; font-size: 14px; line-height: 20px; box-sizing: border-box; list-style-type: none;">鉗形接地電阻測試儀</span></span></strong>單點接地</span></p><p microsoft="" background-color:="" text-align:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;">單點接地主要有以下三種存在</span></p><p microsoft="" background-color:="" text-align:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;">1. 單個接地點，單條引上線接到設(shè)備上</span></p><p microsoft="" background-color:="" text-align:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;">2. 單個接地點，多條引上線接到不同設(shè)備上</span></p><p microsoft="" background-color:="" text-align:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;">3. 多個接地點，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="margin-top: 0px; margin-bottom: 10px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; font-family: 微軟雅黑; color: rgb(51, 51, 51); background-color: rgb(255, 255, 255);"><img src="https://img60.afzhan.com/9/20240524/638521609042947318625.jpg" alt="分享ETCR2000鉗形接地電阻測試儀多點接地使用方法" data-bd-imgshare-binded="1" style="max-width: 98%; height: auto; margin: 0px; padding: 0px; max-height: 100%; vertical-align: middle; list-style-type: none;" /></p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"> </p><p microsoft="" background-color:="" style="margin-top: 0px; margin-bottom: 10px; font-family: 宋體; font-size: 12px; text-wrap: wrap; padding: 0px; font-variant-numeric: normal; font-variant-east-asian: normal; font-stretch: normal; line-height: 30px; color: rgb(68, 68, 68); background-color: rgb(255, 255, 255); box-sizing: border-box; list-style-type: none;"><span style="margin: 0px; padding: 0px; font-size: 16px; line-height: 20px;"><span style="margin: 0px; padding: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none;">從測試原理來說，</span><span style="margin: 0px; padding: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none; font-family: Calibri;">ETCR2000A</span>鉗表只能測量回路電阻，對單點接地是測不出來的。但是，用戶可以利用一根測試線及接地系統(tǒng)附近的接地極，人為地制造一個回路進行測試。下面介紹二種用鉗表<span style="margin: 0px; padding: 0px; line-height: 20px; box-sizing: border-box; list-style-type: none;">測量單點接地的方法，此方法可應用于傳統(tǒng)的數(shù)字式接地電阻表無法測試的場合。例如地下室內(nèi)或樓層上的機房、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)字式接地電阻表測量接地電阻是非常困難的，但</span><span style="margin: 0px; padding: 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試線就可以測算出它們的接地電阻，方法有兩種：</span></p><p> </p> <div class="eqckvv83f" id="news_sx"><li 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