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catch (e) {} </script> </div>  <div id="iqaqewgi6e" class="searchbox"> <form name="form1" method="post" action="/products.html" onsubmit="return checkform(form1)" class="input"> <input name="keyword" onblur="if(this.value=='')this.value='請輸入您要查詢的產(chǎn)品'" onfocus="this.value=''" value="請輸入您要查詢的產(chǎn)品" type="text" class="search-txt"> <input name="" type="submit" class="search-btn" value=""> </form> </div> <div id="iqaqewgi6e" class="clear"></div> </div> </div> <div id="iqaqewgi6e" class="nybanner"><img src="/skins/106676/images/nybanner.jpg"></div> <script src="http://www.chem17.com/mystat.aspx?u=mbdzkj"></script>  <div id="iqaqewgi6e" class="ncontent w_1100"> <div id="iqaqewgi6e" class="h-6">技術文章<span>您當前的位置：<a href="/">首頁</a> > <a href="/article.html">技術文章</a> > 如何使用搖表測量電線的絕緣電阻？</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>如何使用搖表測量電線的絕緣電阻？</h1> <p class="source"><span>日期：2023-11-25</span><span>瀏覽：2645次</span></p> <div> <p><span style="font-size: 16px;"><strong>如何使用搖表測量電線的絕緣電阻？</strong><br/></span></p><p><br/></p><p style="margin-top: 0px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">1、測量前先斷開電纜和電機的電源并且檢查遙表是否完好。</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">2、4芯電纜每一根分別進行測量，搖表L端接電纜，E端接地。測量絕緣電阻不能低于0.5兆歐。</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">3、測量方法如下：<br style="content: ""; display: block; width: 705px; height: 0px; margin: 20px 0px;"/>搖表L端接電機定子，E端接電機外殼。測量絕緣電阻不能低于0.5兆歐。</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">4、電力電纜各纜芯與外皮均有較大電容因此對電力電纜絕緣電阻測量應首先斷開電纜電源及負荷并經(jīng)充分放電之方進行而且般應干燥氣候條件下進行測量測量步驟下：</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(1)測量前測定室內(nèi)溫度并檢查兆歐表指針指示否正常</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(2)按照電力電纜額定電壓核對兆歐表技術規(guī)范否適當</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(3)兆歐表測量導線應使用帶有屏蔽線絕緣導線</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(4)對三相三線鎧裝電力電纜進行測量時電纜端進行測量另端必須設專人監(jiān)護</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(5)分別電纜鎧甲或終端頭接地線與兩根電纜芯連起接兆歐表‘E端另條芯線暫時接待轉(zhuǎn)動兆歐表搖柄使轉(zhuǎn)速達穩(wěn)定120r/min時搖表指針指示∞位置被測電纜芯線與兆歐表L端相連此時兆歐表指針能回零位應繼續(xù)轉(zhuǎn)動搖柄指針即慢慢隨著時間延長向標尺∞方向偏轉(zhuǎn)待儀表指針穩(wěn)定某位置時開始讀數(shù)并作記錄</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(6)取得測量結首先電纜芯線連接導線取下再停止搖動兆歐表手柄并立即對電纜芯線放電再測量電纜另相芯線絕緣電阻</span></p><p style="margin-top: 17px; margin-bottom: 17px; padding: 0px; line-height: 28px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Lantinghei SC", "Microsoft YaHei", arial, 宋體, sans-serif, tahoma; font-size: 16px; white-space: normal; background-color: rgb(255, 255, 255);"><span style="font-size: 16px;">(7)測量完畢工作人員切勿接近未經(jīng)充分放電電纜芯線防觸電</span></p><div style="margin: 0px; padding: 0px; list-style: none; border: 0px; font-family: "PingFang SC", Helvetica, "Microsoft YaHei", Arial, sans-serif; white-space: normal;"><div style="margin: 0px; padding: 0px; list-style: none; border: 0px;"><p data-pid="tY-xNjPl" style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">手搖絕緣電阻表又稱絕緣電阻表，它的刻度是以兆歐（MΩ）為單位的。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">測量前應對高阻表進行開路和短路測試，以確定高阻表是否正常。將“L"和“E"端子的連接線置于開路狀態(tài)，搖動手柄，指針應指向“∞，然后短接“L"和“E"端子的連接線，指針應指向“0"。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;"><br style="clear: both;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">測量前，必須切斷被測設備的電源，并對地短路放電。大電容電路應在測量前對電容放電。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;"><br style="clear: both;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">連接測量線并確認被測零件未通電后，將手柄順時針由慢轉(zhuǎn)快。當轉(zhuǎn)速達到120r/min時，保持勻速旋轉(zhuǎn)，搖動時讀取指示值，不要停止讀取。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;"><br style="clear: both;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">通常，“L"和“E"端可以用來測量絕緣電阻，但在測量高電阻值的絕緣電阻和電纜的絕緣電阻時，需要連接屏蔽端按鈕“G"。為了防止泄漏電流對被測物體表面的影響，被測物體的屏蔽環(huán)或不需要測量的部分必須與高阻表的“G"端連接。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;"><br style="clear: both;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">測量電器和儀表的絕緣電阻時，線路端“L"應連接到被測設備的導線上，接地端“E"應連接到接地的設備外殼上，屏蔽端“G"應連接到被測設備的絕緣部分。你不能把“L"和“E"顛倒過來。用于高阻表三個端子的引線必須使用三根單獨的導線，在測量過程中不允許將這些導線絞在一起，以避免測量誤差。</span></p><p data-pid="uvpgLDeD" style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><span style="font-size: 16px;">絕緣電阻表是電力、郵電、通信、機電安裝</span><svg width="10px" height="10px" viewbox="0 0 15 15" class="css-1dvsrp"><path d="M10.89 9.477l3.06 3.059a1 1 0 0 1-1.414 1.414l-3.06-3.06a6 6 0 1 1 1.414-1.414zM6 10a4 4 0 1 0 0-8 4 4 0 0 0 0 8z" fill="currentColor"></path></svg><span style="font-size: 16px;">和維修等行業(yè)常用的儀表。它用于測量各種絕緣材料</span><svg width="10px" height="10px" viewbox="0 0 15 15" class="css-1dvsrp"><path d="M10.89 9.477l3.06 3.059a1 1 0 0 1-1.414 1.414l-3.06-3.06a6 6 0 1 1 1.414-1.414zM6 10a4 4 0 1 0 0-8 4 4 0 0 0 0 8z" fill="currentColor"></path></svg><span style="font-size: 16px;">的電阻值</span><svg width="10px" height="10px" viewbox="0 0 15 15" class="css-1dvsrp"><path d="M10.89 9.477l3.06 3.059a1 1 0 0 1-1.414 1.414l-3.06-3.06a6 6 0 1 1 1.414-1.414zM6 10a4 4 0 1 0 0-8 4 4 0 0 0 0 8z" fill="currentColor"></path></svg><span style="font-size: 16px;">，以及變壓器、電機、電纜和電氣設備等的絕緣電阻。它由一個搖柄</span><svg width="10px" height="10px" viewbox="0 0 15 15" class="css-1dvsrp"><path d="M10.89 9.477l3.06 3.059a1 1 0 0 1-1.414 1.414l-3.06-3.06a6 6 0 1 1 1.414-1.414zM6 10a4 4 0 1 0 0-8 4 4 0 0 0 0 8z" fill="currentColor"></path></svg><span style="font-size: 16px;">、刻度盤和三個接線柱（即L：線路端、E：接地端、G：屏蔽端）組成，如下圖所示。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; text-align: center;"><img src="https://img50.chem17.com/9/20231122/638362370870048161365.png" title="M%){TF075G~RUXPFG~WRNDC.png" alt="M%){TF075G~RUXPFG~WRNDC.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 800px; max-height: 300%;"/></p><p data-pid="uvpgLDeD" style="margin-top: 0px; margin-bottom: 0px; padding: 0px;"><br style="clear: both;"/></p></div></div><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: "PingFang SC", Helvetica, "Microsoft YaHei", Arial, sans-serif; white-space: normal;"> </p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: "PingFang SC", Helvetica, "Microsoft YaHei", Arial, sans-serif; white-space: normal; text-align: center;"><img src="https://img47.chem17.com/9/20231122/638362371682760221561.jpg" title="c914b84cb1dfa9ca8bcd2eb13ab87e6.jpg" alt="c914b84cb1dfa9ca8bcd2eb13ab87e6.jpg" width="471" height="264" style="margin: 0px; padding: 0px; border: 0px; max-width: 800px; max-height: 300%; width: 471px; height: 264px;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: "PingFang SC", Helvetica, "Microsoft YaHei", Arial, sans-serif; white-space: normal;"><br style="clear: both;"/></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><strong><span style="font-size: 16px;">手搖兆歐表</span></strong><span style="font-size: 16px;">在電力部門是一種很常見的測試儀器，兆歐表有兩個名稱1.搖表亦或叫絕緣電阻測試儀，兆歐表是一種簡便、常用的測量高電阻的直讀式儀表，它的主要功能是測量電路、電機繞組、電纜、電氣設備等的絕緣電阻。兆歐表上有3個分別標有接地(N)、電路(U)、保護環(huán)(G)的接線柱，那么下面就由我來帶領大家淺悉兆歐表的正確使用方法，使用時不僅要接線正確，端鈕擰緊，還要注意以下事項：</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;"><img alt="" src="https://img69.chem17.com/9/20190502/636923803062197895968.png" style="margin: 0px; padding: 0px; border: 0px; max-width: 100%; max-height: 100%; vertical-align: middle; height: 454px; width: 568px;"/></span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??1、被測設備有必要與其他電源斷開，丈量完畢一定要將被測設備充沛放電(約需2~3分鐘)，以保護設備及人身安全。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??2、丈量前先將兆歐表進行一次開路和短路實驗，查看兆歐表是不是正常。具體操作為：將兩銜接線開路，搖擺手柄指針應指在無量大處，再把兩銜接線短接一下，指針應指在零處。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??3、搖測時，將兆歐表置于水平方位，搖把滾動時其端鈕間不許短路。搖測電容器、電纜時，有必要在搖把滾動的情況下才能將接線拆開，不然反充電將會損壞兆歐表。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??4、兆歐表與被測設備之間應運用單股線分隔獨自銜接，并堅持線路外表清洗枯燥，避免因線與線之間絕緣不良導致差錯。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??5、搖擺手柄時，應由慢漸快，均勻加快到120r/min，并留意避免觸電。搖擺過程中，當呈現(xiàn)指針已指零時，就不能再持續(xù)搖擺，以防表內(nèi)線圈發(fā)熱損壞。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??6、應視被測設備電壓等級的不一樣選用適宜的絕緣電阻測試儀。通常額外電壓在500伏以下的設備，選用500伏或1000伏的兆歐表;額外電壓在500伏及以上的設備，選用1000~2500伏的兆歐表。量程規(guī)模的選用通常應留意不要使其丈量規(guī)模過多的超過所測設備的絕緣電阻值，避免使讀數(shù)發(fā)生較大的差錯。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??7、為了避免被測設備外表泄漏電阻，運用兆歐表時，應將被測設備的中間層(如電纜殼芯之間的內(nèi)層絕緣物)接于保護環(huán)。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??8、制止在雷電天氣或在附近有帶高壓導體的設備處運用兆歐表丈量。</span></p><p style="margin-top: 0px; margin-bottom: 0px; padding: 0px; font-family: 宋體; color: rgb(59, 59, 59); font-size: 12px; white-space: normal; background-color: rgb(255, 255, 255); line-height: 24px;"><span style="font-size: 16px;">??通過上面的介紹，我想各位讀者們一定對兆歐表的正確使用有了大致的了解了吧，希望通過這8點的介紹希望大家在日后在使用兆歐表的時候能避免發(fā)生些不必要的錯誤。</span></p><p><strong><br/></strong><br/></p> <div id="iqaqewgi6e" class="clear"></div> </div> <div id="iqaqewgi6e" class="article"> <p>上一篇：<a href="/Article-3548652.html">滑線變阻器技術參數(shù)選型</a></p> <p>下一篇：<a href="/Article-3542650.html">變壓器直流電阻測試儀的接線圖片以及使用方法</a></p> </div> <div 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