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class="eja">繼電保護測試儀</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">技術文章</a> > 三相短路接地線、高壓接地線、室內母排接地線</div> <div id="nxnzvbt5" class="inpage_content"> <div id="nxnzvbt5" class="nr_main_box"> <h1 class="inside_rnewtil">三相短路接地線、高壓接地線、室內母排接地線</h1> <div id="nxnzvbt5" class="inside_rnewtime">點擊次數(shù)：1455 更新時間：2018-11-28</div> <div id="nxnzvbt5" class="inside_rnewcon"><p><span style="font-size:16px"><strong>三相短路接地線、高壓接地線、室內母排接地線</strong><strong style="font-family:tahoma,arial,宋體,sans-serif; font-size:16px; line-height:22px; margin:0px; padding:0px">高壓接地線介紹</strong></span></p><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> </span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （1）高壓接地線作用：高壓接地線是用于線路和變電施工，為防止臨近帶電體產(chǎn)生靜電感應觸電或誤合閘時保證安全之用。</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （2）高壓接地線結構：攜帶型高壓接地線由絕緣操作桿、導線夾、短路線、接地線、接地端子、匯流夾、接地夾。</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （3）高壓接地線制作工藝：導線夾、接地夾是采用鋁合金壓鑄成形；操作棒采用環(huán)氧樹脂彩色管，絕緣性能好，強度高、重量輕、色彩鮮明、外表光滑；接地軟銅線采用多股軟銅線絞合而成，并外覆柔軟、耐高溫的透明絕緣護層，可以防止使用中對接地銅線的磨損，銅線達到疲勞度測試需求，確保作業(yè)人員在操作中的安全。</span></span></div><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （4）接地線規(guī)格：在電力系統(tǒng)中接地線：是為了在已停電的設備和線路上意外地出現(xiàn)電壓時保證工作人員的重要工具。按部頒規(guī)定，接地線必須是 25mm 2 以上裸銅軟線制成。</span></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> <img alt="" src="http://img50.chem17.com/9/20181128/636789947420575392430.png" style="height:553px; width:676px" /></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="background-color:rgb(255, 255, 255); color:rgb(51, 51, 51); font-family:sans-serif,arial,verdana,trebuchet ms">三相短路接地線、高壓接地線、室內母排接地線</span><strong style="margin:0px; padding:0px"><span style="margin:0px; padding:0px">的電阻要求：</span></strong></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> </span></p><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 高壓短路接地線對地電阻要求決定了接地線的品質，一般按照電力行業(yè)DL-T879-2004技術規(guī)定要求每個截面積的接地線對地電阻不的大于下列數(shù)值：</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 接線鼻之間測量直流電阻，</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 對于16mm2 ，25mm2，35mm2，50mm2，70mm2，95mm2，120mm2的各種截面，</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 平均每米的電阻值應分別小于1.24mΩ， 0.79mΩ，0.56mΩ，0.40mΩ，0.28mΩ，0.21mΩ，0.16mΩ。</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"> </span></div></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> </span><span style="background-color:rgb(255, 255, 255); color:rgb(51, 51, 51); font-family:sans-serif,arial,verdana,trebuchet ms">三相短路接地線、高壓接地線、室內母排接地線 </span><span style="margin:0px; padding:0px">高壓接地線分類</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> </span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （1）高壓接地線按照使用環(huán)境可以分為：室內母排型接地線（JDX-NL）和室外線路型接地線（JDX-WS）。</span></span></div><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （2）高壓接地線按照電壓等級可分為：10KV接地線，35KV高壓接地線，110KV接地線，220KV高壓接地線，500KV高壓接地線</span></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> <span style="background-color:rgb(255, 255, 255); color:rgb(51, 51, 51); font-family:sans-serif,arial,verdana,trebuchet ms">三相短路接地線、高壓接地線、室內母排接地線技術參數(shù)</span></span></p><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （1）10KV高壓接地線絕緣桿部分長度：700 mm 握手部分長度：300 mm 金屬接頭部分長度：50 mm 節(jié)數(shù)：1 桿徑：30mm 總長（不包括線夾）：1050 mm</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （2）35KV接地線標稱截面：25mm2 總根數(shù)：810 平均直徑（mm）：0.2mm 計算截面：（mm2）：25.43 金屬接頭部分長度：50 mm 節(jié)數(shù)：1 桿徑：30mm</span></span></div><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （3）110KV高壓接地線標稱截面：35mm2 總根數(shù)：1136 平均直徑（mm）：0.2mm 計算截面：（mm2）：35.67 絕緣桿部分長度：1360 mm 握手部分長度：700 mm 金屬接頭部分長度：140 mm 節(jié)數(shù)：2 桿徑：30mm 總長（不包括線夾）：2200 mm</span> <img alt="" src="http://img49.chem17.com/9/20181128/636789947902021392245.png" style="height:474px; width:723px" /><span style="background-color:rgb(255, 255, 255); color:rgb(51, 51, 51); font-family:sans-serif,arial,verdana,trebuchet ms">三相短路接地線、高壓接地線、室內母排接地線使用說明書</span><strong style="margin:0px; padding:0px"><span style="margin:0px; padding:0px">:</span></strong></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> </span></p><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> (1）掛接地線時：先連結接地夾，后接接電夾；拆除接地線時，必須按程序先拆接電夾，后拆接地夾。</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （2）安裝：將接地軟銅線分相上雙眼銅鼻子固定在接地棒上的接電夾（接電夾有固定式和活動式）相應位置上，將接地線合相上的單眼銅鼻子固定在接地夾或地針上，構成一套完整的接地線。</span></span></div><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （3）核實接地棒的電壓等級與操作設備的電壓等級是否一致。</span></span></div><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> （4）接地軟銅線有分相式和組合式，接地棒有平口式和雙簧鉤式線夾。</span></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> </span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"><span style="background-color:rgb(255, 255, 255); color:rgb(51, 51, 51); font-family:sans-serif,arial,verdana,trebuchet ms">三相短路接地線、高壓接地線、室內母排接地線</span><strong style="margin:0px; padding:0px"><span style="margin:0px; padding:0px">使用維護:</span></strong></span></p><p style="margin: 10px 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><span style="font-size:16px"> </span></p><div style="margin: 0px; padding: 0px; line-height: 22px; font-family: tahoma, arial, 宋體, sans-serif; font-size: 12px;"><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 使用攜帶型短路接地線前，應先驗電確認已停電，在設備上確認無電壓后進行。先將接地線夾連接在接地網(wǎng)或扁鐵件上，然后用接地操作棒分別將導線端線類擰緊在設備導線上。拆除短路接地線時，順序正好與上述相反。</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 裝設的短路接地線，它和帶電設備的距離，考慮到接地線擺的影響，其安全距離應不小于《電力安全工作規(guī)程》新規(guī)定的數(shù)值。</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 嚴禁不用線夾而用纏繞的方法進行接地短路。</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 懸掛點如有接地點，應用接地線夾或銅棒作接地連接;如無固定接地點可利用;則可用臨時接地點，接地極埋入地下深度應不小于0.6m。</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 攜帶型短路接地線應妥善保管。每次使用前，均應仔細檢查其是否完好，軟銅線無祼露，螺母不松脫，否則不得使用。</span></span></div><div style="margin: 0px; padding: 0px;"><span style="font-size:16px"><span style="margin:0px; padding:0px"> 攜帶型短路接地線檢驗周期為每五年一次，檢驗項目同出廠檢驗。經(jīng)試驗合格的攜帶型短路接地線在經(jīng)受短路后，應根據(jù)經(jīng)受短路電流大小和外觀檢驗判斷，一般應予報廢</span></span></div></div></div> <div id="nxnzvbt5" class="inside_newsthree"> <p id="newsprev">上一篇：<b class="newsprev"><a href="/Article-1698853.html">TD-1168高空接線鉗/多功能高空接線鉗/電力高空接線裝置</a></b></p> <p id="newsnext">下一篇：<b class="newsnext"><a href="/Article-1697429.html">三相短路接地線使用和維護說明</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</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 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