雙鉗多功能接地電阻測(cè)試儀【上?？档请姎狻恐v解-上?？档请姎饪萍加邢薰?/title> <link type="text/css" rel="stylesheet" href="/Skins/106676/css/index.css" /> <script src="/skins/106676/js/jquery-3.6.0.min.js"></script> <link rel="stylesheet" type="text/css" href="/skins/106676/css/swiper.min.css"> <script type="text/javascript" src="/skins/106676/js/swiper.min.js"></script>  <script language="javascript" type="text/javascript"> var nav= '5'; var menu= '0'; </script>  <link rel="shortcut icon" href="/skins/106676/favicon.ico"> <script type="application/ld+json"> { "@context": "https://ziyuan.baidu.com/contexts/cambrian.jsonld", "@id": "http:///Article-3162344.html", "title": "雙鉗多功能接地電阻測(cè)試儀【上?？档请姎狻恐v解", "pubDate": "2022-10-15T09:39:23", "upDate": "2022-10-15T09:39:23" }</script> <script language="javaScript" src="/js/JSChat.js"></script><script language="javaScript">function ChatBoxClickGXH() { DoChatBoxClickGXH('https://chat.chem17.com',83189) }</script><script>!window.jQuery && document.write('<script 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id="iqaqewgi6e" class="newsnr"> <h1>雙鉗多功能接地電阻測(cè)試儀【上?？档请姎狻恐v解</h1> <p class="source"><span>日期：2022-10-15</span><span>瀏覽：1248次</span></p> <div> <p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;"><strong style="margin: 0px;">雙鉗多功能接地電阻測(cè)試儀【上?？档请姎狻恐v解</strong></span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;"><strong style="margin: 0px;">雙鉗多功能接地電阻測(cè)試儀</strong>優(yōu)良的接地系統(tǒng)是電力、電信、電氣設(shè)備安全可靠運(yùn)行的重要保證。接地電阻大小是接地系統(tǒng)品質(zhì)優(yōu)劣的評(píng)判依據(jù)。、快速、簡(jiǎn)捷、可靠的接地電阻測(cè)量方法，已成為防雷接地領(lǐng)域內(nèi)技術(shù)進(jìn)步的迫切需要。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;"><strong style="margin: 0px;">雙鉗多功能接地電阻測(cè)試儀</strong>適用于電信、電力、氣象、機(jī)房、電力配電線路、鐵塔輸電線路、加油站、工廠接地網(wǎng)、避雷針等。<br style="margin: 0px;"/>除了具有傳統(tǒng)打輔助地極測(cè)接地電阻的功能外，還具備了無(wú)輔助地極測(cè)量的*功能，改變了測(cè)試接地電阻傳統(tǒng)的測(cè)量原理和手段：采用雙鉗口非接觸測(cè)量技術(shù)無(wú)需打輔助地極，也無(wú)需將接地體與負(fù)載隔離，實(shí)現(xiàn)了在線測(cè)量。在單點(diǎn)接地系統(tǒng)、干擾性強(qiáng)等條件下，可以采用打輔助地極的測(cè)量方式進(jìn)行測(cè)量。<br style="margin: 0px;"/>產(chǎn)品別稱(chēng)<br style="margin: 0px;"/>雙鉗形接地電阻測(cè)試儀、多功能雙鉗接地電阻測(cè)試儀、多功能接地電阻測(cè)試儀、雙鉗口接地電阻測(cè)試儀、鉗形接地電阻測(cè)試儀、接地電阻、接地表、地阻儀、接地電阻儀、接地電阻測(cè)量?jī)x、數(shù)字式接地電阻測(cè)試儀、數(shù)字接地電阻測(cè)試儀、雙鉗式接地電阻測(cè)試儀、鉗式數(shù)字接地電阻測(cè)試儀、雙鉗數(shù)字接地電阻測(cè)試儀、鉗式接地電阻測(cè)試儀<br style="margin: 0px;"/>康登電橋優(yōu)勢(shì)<br style="margin: 0px;"/>1、雙鉗法/地樁法雙重測(cè)量方式：<br style="margin: 0px;"/> 適合任意接地場(chǎng)所，多點(diǎn)或單點(diǎn)接地，都可正常測(cè)試<br style="margin: 0px;"/> 2、抗干擾能力強(qiáng)：<br style="margin: 0px;"/> 自產(chǎn)生高頻電流，從而過(guò)濾市電中50Hz、100Hz等諧波干擾電流，即使在500KV變電站環(huán)境下，也能測(cè)量<br style="margin: 0px;"/> 3、雙鉗多功能接地電阻測(cè)試儀測(cè)量范圍廣、分辨率高：<br style="margin: 0px;"/> 量程從0.01Ω～200Ω，分辨率0.01Ω，對(duì)0.7Ω以下接地電阻，也能準(zhǔn)確測(cè)量<br style="margin: 0px;"/> 4、大鉗口設(shè)計(jì)：<br style="margin: 0px;"/> 鉗口直徑50mm(標(biāo)準(zhǔn)配置)，滿足用扁鐵/鋼作接地引線的情況，特殊鉗口尺寸可按客戶要求定制<br style="margin: 0px;"/> 5、大容量數(shù)據(jù)存儲(chǔ)：<br style="margin: 0px;"/> 可儲(chǔ)存200組測(cè)量數(shù)據(jù)<br style="margin: 0px;"/> 6、操作簡(jiǎn)單，單人作業(yè)：<br style="margin: 0px;"/> 全中文操作界面、體積小、重量輕，防爆便攜箱，野外測(cè)量攜帶方便<br style="margin: 0px;"/>產(chǎn)品參數(shù)<br style="margin: 0px;"/>技術(shù)參數(shù)<br style="margin: 0px;"/>接地電阻測(cè)量范圍雙鉗法 0.01Ω～200Ω<br style="margin: 0px;"/>地樁法 0.01Ω～200Ω<br style="margin: 0px;"/>誤差雙鉗法 ±3%±2個(gè)字<br style="margin: 0px;"/>地樁法 ±2%±2個(gè)字<br style="margin: 0px;"/>zui小分辨率 0.01Ω<br style="margin: 0px;"/>鉗口尺寸 Φ50mm<br style="margin: 0px;"/>存儲(chǔ)容量 200組數(shù)據(jù)<br style="margin: 0px;"/>工作溫度 0℃～+50℃<br style="margin: 0px;"/>電源 8節(jié)5號(hào)鎳氫充電電池或普通AA電池<br style="margin: 0px;"/>重量 0.8KG(含電池)<br style="margin: 0px;"/>尺寸 265×130×65mm3</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"> </p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">測(cè)量原理及使用方法</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">㈠、雙鉗法</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">1、測(cè)量原理</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">此方法的優(yōu)點(diǎn)在于：一是操作簡(jiǎn)單。可以在不斷開(kāi)待測(cè)設(shè)備電源，在其正常工作時(shí)進(jìn)行測(cè)試，不必插入測(cè)量探頭，也不必將被測(cè)電極分開(kāi)，只需要雙鉗夾著接地導(dǎo)體就可以測(cè)出其接地電阻。二是精度高。其精度可以達(dá)到0.01Ω。三是抗干擾能力強(qiáng)。可以濾出各種工頻諧波。四是可以作為打地樁方式的補(bǔ)充。在很多條件下（如房屋密集或鋪滿水泥的地區(qū)），很難甚至不可能采用打樁的方式對(duì)接地電阻的測(cè)量，使用雙鉗口測(cè)試原理，可以不用打接地樁進(jìn)行測(cè)量。該測(cè)量原理的WEI一的不足是：不能夠直接對(duì)單點(diǎn)接地系統(tǒng)的測(cè)量。在單點(diǎn)接地系統(tǒng)中應(yīng)慎用鉗形地阻表。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">其測(cè)量原理簡(jiǎn)述如下：本儀表配有兩個(gè)鉗口：電壓鉗和電流鉗。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">如圖2所示，電壓鉗在被測(cè)回路中激勵(lì)出一個(gè)感應(yīng)電勢(shì)E，并在被測(cè)回路產(chǎn)生電流I，儀表通過(guò)電流鉗可以測(cè)得I值。通過(guò)對(duì)E、I的測(cè)量，由歐姆定律：R=E/I，即可求得R的值。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><img alt="" src="https://img47.chem17.com/9/20181201/636792605490095179120.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; height: 148px; width: 141px;"/> </span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 17.95pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">圖2 測(cè)量原理</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">2、多極并聯(lián)接地電阻的測(cè)量</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">對(duì)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，組成了接地系統(tǒng)。如圖3所示：</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><img alt="" src="https://img47.chem17.com/9/20181201/636792607863277179735.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; height: 243px; width: 516px;"/> </span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">圖3 多點(diǎn)接地系統(tǒng)地阻的測(cè)量</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">當(dāng)用鉗表將兩個(gè)鉗口鉗入被測(cè)接地線上，兩個(gè)鉗口的間距為30cm左右，發(fā)射鉗夾插入“發(fā)射"航插孔，接收鉗夾插入“接收"航插孔，兩航插孔不可互換，（如上圖測(cè)量時(shí)），其等效電路見(jiàn)下圖。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><img alt="" src="https://img49.chem17.com/9/20181201/636792608501981179700.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; height: 148px; width: 141px;"/> </span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">圖4 等效電路</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">則R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">T</span></sub><span style="margin: 0px; font-family: 宋體;"> =Rx+ R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">0</span></sub></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">其中：</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">T</span></sub><span style="margin: 0px; font-family: 宋體;">：儀表測(cè)量出的值</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">Rx：待測(cè)接地電阻</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">0</span></sub><span style="margin: 0px; font-family: 宋體;">：所有其它桿塔的接地電阻并聯(lián)后的等效電阻。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">雖然，從嚴(yán)格的接地理論來(lái)說(shuō)，由于有所謂的“互電阻"的存在，R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">0</span></sub><span style="margin: 0px; font-family: 宋體;">并不是通常的電工學(xué)意義上的并聯(lián)值（它會(huì)比電工學(xué)意義上的并聯(lián)值稍大），但是，由于每一個(gè)桿塔的接地半球比起桿塔之間的距離要小得多，而且畢竟接地點(diǎn)數(shù)量很大，R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">0</span></sub><span style="margin: 0px; font-family: 宋體;">要比R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">1</span></sub><span style="margin: 0px; font-family: 宋體;">小得多。因此，可以從工程角度有理由地假設(shè)R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">0</span></sub><span style="margin: 0px; font-family: 宋體;">=0。這樣，我們所測(cè)的電阻就應(yīng)該是R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">X</span></sub><span style="margin: 0px; font-family: 宋體;">了，即R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">T</span></sub><span style="margin: 0px; font-family: 宋體;">≈Rx。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">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)，證明上述假設(shè)是*合理的。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">非接觸測(cè)量法（即雙鉗法）是一種*的測(cè)量技術(shù)，具有諸多優(yōu)點(diǎn)。不過(guò)，測(cè)試儀測(cè)得的電阻是包括被測(cè)接地電阻在內(nèi)的整個(gè)回路的電阻。使用中必須牢記這一點(diǎn)，以利對(duì)測(cè)量結(jié)果的分析。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">注意：發(fā)射鉗夾，接收鉗夾不可互換。</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">3、雙鉗法測(cè)獨(dú)立接地體的方法</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">a、雙鉗法在測(cè)試過(guò)程中，一定要有一個(gè)有效的閉合回路。解決的辦法是找一個(gè)輔助接電極，將被測(cè)接地體與接地良好的輔助地（如自來(lái)水管等）用連接線連在一起，將二個(gè)鉗口鉗入連接線上，（圖5所示）：二者間距30cm左右，此時(shí)按“雙鉗"鍵，進(jìn)行雙鉗法測(cè)量界面，再按“測(cè)試"鍵直接顯示測(cè)量結(jié)果。測(cè)試獨(dú)立接地體接地電阻時(shí)可根據(jù)不同的情況采用不同的測(cè)試方法。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">b、當(dāng)機(jī)房處于低樓層時(shí)（一、二層）可采用地樁測(cè)試方法，直接測(cè)出接地電阻。</span></span></p><ul style="list-style-type: square;" class=" list-paddingleft-2"><li><p><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">機(jī)房處于較高樓層時(shí)，（二層以上），可采用“獨(dú)立接地體"測(cè)試方法此種方法是基于將自來(lái)水管網(wǎng)的接地電阻理論上認(rèn)為是零歐姆，但實(shí)際上是有電阻值的，此時(shí)測(cè)試分為二步：*步，按“獨(dú)立接地體"測(cè)試方法測(cè)出R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">A</span></sub><span style="margin: 0px; font-family: 宋體;">；第二步，單獨(dú)在一樓將自來(lái)水管的接地電阻按“地樁"測(cè)試方法測(cè)出R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">B</span></sub><span style="margin: 0px; font-family: 宋體;">（此時(shí)自來(lái)水管看作獨(dú)立接地體），（R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">A</span></sub><span style="margin: 0px; font-family: 宋體;">－R</span><sub style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">B</span></sub><span style="margin: 0px; font-family: 宋體;">）即為機(jī)房接地裝置的實(shí)際接地電阻?！?/span></span></p></li></ul><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 27pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"><img alt="" src="https://img48.chem17.com/9/20181201/636792610140675179729.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; height: 153px; width: 372px;"/><br style="margin: 0px;"/><span style="margin: 0px; font-family: 宋體;">圖5 獨(dú)立接地體地阻測(cè)量</span></span></p><ul style="list-style-type: square;" class=" list-paddingleft-2"><li><p><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">雙鉗法測(cè)電阻時(shí)，如果測(cè)量值顯示溢出，則說(shuō)明被測(cè)電阻已超過(guò)本儀表的測(cè)量范圍或說(shuō)明鉗口沒(méi)有鉗繞任何金屬導(dǎo)體或被測(cè)接地線。</span></span></p></li></ul><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">㈡、地樁法</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">采用圖6的連接方法。此時(shí)按“地樁"鍵，進(jìn)入地樁法測(cè)試界面。再按“測(cè)試"鍵可更精確地測(cè)量出被測(cè)接地體的接地電阻值。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 27pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255); text-align: center;"><span style="margin: 0px; font-size: 16px;"> <img alt="" src="https://img47.chem17.com/9/20181201/636792610804641179131.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; height: 274px; width: 383px;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">㈢、存儲(chǔ)</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">每次測(cè)量后，可存貯測(cè)量結(jié)果。按左移鍵或右移鍵，將光標(biāo)停在“存儲(chǔ)"上，按“確認(rèn)"鍵進(jìn)入存儲(chǔ)功能。輸入要存儲(chǔ)或查看的目號(hào)，然后按“確認(rèn)"即可存儲(chǔ)，例如要將測(cè)量數(shù)據(jù)存儲(chǔ)到第7組內(nèi)，則將目號(hào)調(diào)整至007。再按“確認(rèn)"鍵，進(jìn)行確認(rèn)，即可完成存儲(chǔ)。如該目號(hào)已存有數(shù)據(jù)，則原數(shù)據(jù)被覆蓋。繼續(xù)測(cè)試，按“確認(rèn)"鍵，返回測(cè)試狀態(tài)。本機(jī)可存儲(chǔ)200組數(shù)據(jù)。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">㈣、查看/刪除</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">在雙鉗法和地樁法測(cè)試界面，將光標(biāo)移到“返回"上，再按“確認(rèn)"鍵，即右進(jìn)入主菜單，再按“▲"“▼"鍵，選擇 “查看歷史數(shù)據(jù)"或“刪除歷史數(shù)據(jù)"。再按“確認(rèn)"鍵，進(jìn)入相應(yīng)的功能。按“</span><img src="https://www.chem17.com/UserManage/ueditor/themes/default/images/spacer.gif" style="background:url(https://www.chem17.com/UserManage/ueditor/lang/zh-cn/images/localimage.png) no-repeat center center;border:1px solid #ddd" word_img="file:///C:/Users/ADMINI~1/AppData/Local/Temp/ksohtml/wps2A99.tmp.png"/><span style="margin: 0px; font-family: 宋體;">" “</span><img src="https://www.chem17.com/UserManage/ueditor/themes/default/images/spacer.gif" style="background:url(https://www.chem17.com/UserManage/ueditor/lang/zh-cn/images/localimage.png) no-repeat center center;border:1px solid #ddd" word_img="file:///C:/Users/ADMINI~1/AppData/Local/Temp/ksohtml/wps2A9A.tmp.png"/><span style="margin: 0px; font-family: 宋體;">"左右調(diào)整，按“▲" 、“▼"調(diào)整數(shù)字，按“確認(rèn)"鍵進(jìn)行確認(rèn)，即可查閱存儲(chǔ)數(shù)值或刪除存儲(chǔ)的數(shù)值。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; margin-left: 6pt; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">㈤、保持</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">在雙鉗法，地樁法測(cè)試過(guò)程中，由于環(huán)境影響及外界干擾等因素，可能會(huì)出現(xiàn)數(shù)值不穩(wěn)定的現(xiàn)象。在雙鉗法、地樁法測(cè)試界面，當(dāng)光標(biāo)停留在“保持"上時(shí)可以按“確認(rèn)"鍵對(duì)測(cè)量數(shù)值進(jìn)行鎖定，便于測(cè)量者進(jìn)行記錄和讀取數(shù)值。此時(shí)屏幕上“保持"變?yōu)椤敖獬?，再按一下“確認(rèn)"即可解除鎖定功能。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"> </p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><strong style="margin: 0px;"><span style="margin: 0px; font-family: 宋體;">七、注意事項(xiàng)</span></strong></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">1、鉗口和主機(jī)為配套使用，出廠前已按要求配好。為避免測(cè)量誤差，本主機(jī)所配鉗口不得用于其他主機(jī)上。</span></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; color: rgb(85, 85, 85); font-family: Tahoma; background-color: rgb(255, 255, 255);"><span style="margin: 0px; font-size: 16px;"><span style="margin: 0px; font-family: 宋體;">2、任何時(shí)候都要保護(hù)鉗口鐵芯接觸面的清潔，被污染的鉗口會(huì)降低儀表的測(cè)量準(zhǔn)確度。</span></span></p><p 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onmouseover="showsubmenu('液壓鉗、繞纜剪總匯')" class="yj">液壓鉗、繞纜剪總匯</a> <div class="iqaqewgi6e" id="submenu_液壓鉗、繞纜剪總匯" style="display:none"> <ul> <li><a href="/SonList-1324457.html">> 液壓鉗（進(jìn)口）</a></li> <li><a href="/SonList-1324456.html">> 充電式液壓線纜剪</a></li> <li><a href="/SonList-1324455.html">> 充電式液壓電纜鉗</a></li> <li><a href="/SonList-1324454.html">> 剝線鉗</a></li> <li><a href="/SonList-1324453.html">> 線纜剪</a></li> <li><a href="/SonList-1324452.html">> 液壓導(dǎo)線鉗</a></li> <li><a href="/SonList-1324451.html">> 壓接鉗</a></li> <li><a href="/SonList-1324450.html">> 液壓鉗</a></li> </ul> </div> </li> <li><a href="/ParentList-1324332.html" onmouseover="showsubmenu('繞組匝間沖擊耐電壓試驗(yàn)儀')" class="yj">繞組匝間沖擊耐電壓試驗(yàn)儀</a> <div class="iqaqewgi6e" id="submenu_繞組匝間沖擊耐電壓試驗(yàn)儀" style="display:none"> <ul> <li><a href="/SonList-1324343.html">> 耐電壓試驗(yàn)儀</a></li> </ul> </div> </li> <li><a href="/ParentList-1324322.html" onmouseover="showsubmenu('直流高壓發(fā)生器')" class="yj">直流高壓發(fā)生器</a> <div class="iqaqewgi6e" 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