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</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(shù)文章<span>您當(dāng)前的位置：<a href="/">首頁(yè)</a> > <a href="/article.html">技術(shù)文章</a> > KD505F 電纜識(shí)別儀原理</span></div>  <div id="iqaqewgi6e" class="n-3 c-news"> <div id="iqaqewgi6e" class="newsnr"> <h1>KD505F 電纜識(shí)別儀原理</h1> <p class="source"><span>日期：2025-04-06</span><span>瀏覽：64次</span></p> <div> <p><strong>KD505F 電纜識(shí)別儀測(cè)試原理 </strong></p><p><strong>3.1測(cè)試原理：<br/> 電纜故障的識(shí)別常規(guī)可分為不帶電測(cè)試與帶電電纜測(cè)試兩種情況。其基本原理都是給電纜施加一定的測(cè)試信號(hào)，然后通過(guò)測(cè)試耦合鉗，獲取電纜上施加的脈沖信號(hào)，并根據(jù)信號(hào)的大小、方向來(lái)確定電纜是否是所施加信號(hào)的電纜。<br/>不帶電電纜測(cè)試原理；<br/><br/><img src="https://www.chem17.com/UserManage/ueditor/themes/default/images/spacer.gif" word_img="file:///C:\Users\Administrator\Documents\Tencent Files\1070731952\nt_qq\nt_data\Pic\2025-04\Ori\d30659eae723e21a9cf62326582b506b.jpg" style="background:url(https://www.chem17.com/UserManage/ueditor/lang/zh-cn/images/localimage.png) no-repeat center center;border:1px solid #ddd"/> </strong></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img54.chem17.com/9/20250406/638795573112398912717.png" title="圖片1.png" alt="圖片1.png"/></p><p><strong><br/>從上圖可以看出，脈沖電流通過(guò)電纜的某一芯線到達(dá)末端，而電纜末端芯線接地后，電流通過(guò)大地構(gòu)成回路電流。電纜上的電流方向應(yīng)該是指向末端，而回路方向的電流應(yīng)該是指向發(fā)射機(jī)負(fù)</strong><strong>極--端</strong><strong>。<br/>利用接收器耦合鉗感應(yīng)電纜上流過(guò)的電流方向和大小即可確定電纜。<br/>根據(jù)上圖原理可以看出，在實(shí)際現(xiàn)場(chǎng)需要注意的一點(diǎn)，就是被測(cè)電纜的始端地線辮子一定要斷開(kāi)，保證地線處于懸空狀態(tài)才能有效測(cè)試。如果地線沒(méi)有斷開(kāi)將不能正確的獲得測(cè)試信號(hào)！?。?br/>在不帶電電纜測(cè)試時(shí)應(yīng)確保被測(cè)電纜處于無(wú)電狀態(tài)才能進(jìn)行有效的測(cè)試，所以測(cè)試前應(yīng)先用地線對(duì)電纜放電，確定無(wú)電才可進(jìn)行測(cè)試！??！<br/><br/> 帶電電纜測(cè)試原理；<br/><img src="https://www.chem17.com/UserManage/ueditor/themes/default/images/spacer.gif" word_img="file:///C:\Users\Administrator\Documents\Tencent Files\1070731952\nt_qq\nt_data\Pic\2025-04\Ori\c7c62918b113abbe681d6d6c089b1fbe.jpg" style="background:url(https://www.chem17.com/UserManage/ueditor/lang/zh-cn/images/localimage.png) no-repeat center center;border:1px solid #ddd"/> </strong></p><p style="text-align: center"><img style="max-width:800px;max-height:300%;" src="https://img54.chem17.com/9/20250406/638795573293180002529.png" title="圖片2.png" alt="圖片2.png"/></p><p><strong><br/>帶電電纜測(cè)試與不帶電電纜測(cè)試傳導(dǎo)方式是不同的，帶電電纜識(shí)別測(cè)試是通過(guò)耦合鉗將直流脈動(dòng)電流耦合到高壓電纜上的，由于芯線帶有高壓并連接到不同的負(fù)載，所以感應(yīng)電流不是通過(guò)高壓芯線來(lái)傳導(dǎo)的，而是通過(guò)高壓電纜上的銅屏蔽層來(lái)傳導(dǎo)的。感應(yīng)電力在電纜的銅屏蔽層與大地支間構(gòu)成回路。所以在對(duì)帶電電纜進(jìn)行測(cè)試時(shí)，不需要對(duì)電纜做任何的改接方式，直接在高壓柜下或電纜溝道用耦合鉗卡住被測(cè)電纜即可進(jìn)行測(cè)試。<br/>同樣測(cè)試時(shí)利用接收器耦合鉗感應(yīng)電纜上流過(guò)的電流方向和大小即可確定電纜。</strong><br/></p><p><strong><br/></strong></p> 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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" id="submenu_直流高壓發(fā)生器" style="display:none"> <ul> <li><a href="/SonList-1324326.html">> 直流高壓發(fā)生器</a></li> <li><a href="/SonList-1324324.html">> ZGF直流高壓發(fā)生器</a></li> </ul> </div> </li> <li><a href="/ParentList-1324311.html" onmouseover="showsubmenu('電工電修工具設(shè)備總匯')" class="yj">電工電修工具設(shè)備總匯</a> <div class="iqaqewgi6e" id="submenu_電工電修工具設(shè)備總匯" style="display:none"> <ul> <li><a 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剪床/折彎?rùn)C(jī)</a></li> <li><a href="/SonList-1323793.html">> 臥式帶鋸床</a></li> <li><a href="/SonList-1323792.html">> 空氣壓縮機(jī)</a></li> <li><a href="/SonList-1323791.html">> 多功能電沖機(jī)</a></li> <li><a href="/SonList-1323790.html">> 液壓角鋼切斷機(jī)</a></li> <li><a href="/SonList-1323789.html">> 磁座鉆</a></li> <li><a href="/SonList-1323788.html">> 多功能壓力機(jī)</a></li> <li><a href="/SonList-1323786.html">> 液壓螺栓拉伸器</a></li> <li><a href="/SonList-1323785.html">> 螺栓修復(fù)器</a></li> <li><a href="/SonList-1323784.html">> 液壓法蘭分離器</a></li> <li><a href="/SonList-1323783.html">> 多功能液壓開(kāi)孔器</a></li> <li><a href="/SonList-1323782.html">> 斷頭螺絲取出器</a></li> <li><a href="/SonList-1323781.html">> 液壓螺帽破開(kāi)器</a></li> </ul> </div> </li> <li><a href="/ParentList-1323603.html" onmouseover="showsubmenu('搬運(yùn)吊裝工具總匯')" class="yj">搬運(yùn)吊裝工具總匯</a> <div class="iqaqewgi6e" id="submenu_搬運(yùn)吊裝工具總匯" style="display:none"> <ul> <li><a href="/SonList-1323611.html">> 吊機(jī)、吊裝帶</a></li> <li><a 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