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</ul> </div> </li> <li id="pvhr3jx3r5" class="yj"><a href="/ParentList-1935168.html" class="yja" onmouseover="showsubmenu('高壓無線核相儀')">高壓無線核相儀</a> <div class="pvhr3jx3r5" id="submenu_高壓無線核相儀" style="display:none"> <ul> </ul> </div> </li> <li id="pvhr3jx3r5" class="yj"><a href="/ParentList-1935169.html" class="yja" onmouseover="showsubmenu('高壓核相儀')">高壓核相儀</a> <div class="pvhr3jx3r5" id="submenu_高壓核相儀" style="display:none"> <ul> </ul> </div> </li> </ul> </div> </div></div> <div id="pvhr3jx3r5" class="inpage_right"> <div id="pvhr3jx3r5" class="mbx2"><a href="/">首頁</a> > <a href="/article.html">技術(shù)文章</a> > 攜帶型短路接地線試驗方法</div> <div id="pvhr3jx3r5" class="inpage_content"> <div id="pvhr3jx3r5" class="nr_main_box"> <h1 class="inside_rnewtil">攜帶型短路接地線試驗方法</h1> <div id="pvhr3jx3r5" class="inside_rnewtime">點擊次數(shù)：2638 更新時間：2019-07-05</div> <div id="pvhr3jx3r5" class="inside_rnewcon"><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><strong><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">攜帶型短路接地線試驗方法</span></span></span></strong></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">1. </span></span><span style="font-family:宋體; margin:0px auto">外觀檢查</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">目側(cè)各部件是否符合使用要求，多股導線截面是否和標志一致，連接方法是否正確。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">2. </span></span><span style="font-family:宋體; margin:0px auto">成組短路接地線的電壓降試驗</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">在已組裝好的<span style="color:#FF0000"><strong><span style="margin:0px auto">短路接地線</span></strong></span>上進行（在每一線夾到另一線夾的任一支路上都要進行）試驗，施加</span><span style="margin:0px auto"><span style="margin:0px auto">0.2%</span></span><span style="font-family:宋體; margin:0px auto">額定短路電流值，測量其電壓，其電壓應小于或等于同長同截面絞線的電壓，或電壓不超過型式試驗時測得電壓的</span><span style="margin:0px auto"><span style="margin:0px auto">115%</span></span><span style="font-family:宋體; margin:0px auto">。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">3. </span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">多股軟導線疲勞試驗</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">被試多股軟導線一端固定在試驗附件上，試驗附件的桿長為</span><span style="margin:0px auto"><span style="margin:0px auto">100mm</span></span><span style="font-family:宋體; margin:0px auto">，被試多股軟導線的長度為</span><span style="margin:0px auto"><span style="margin:0px auto">1000mm</span></span><span style="font-family:宋體; margin:0px auto">。試驗時，試驗附件沿軸向來回擺動，擺動角度為左右</span><span style="margin:0px auto"><span style="margin:0px auto">60</span></span><span style="font-family:宋體; margin:0px auto">°</span><span style="font-family:宋體; margin:0px auto">。被試多股軟導線下端連到一垂直導向片，并懸掛荷載，荷載按導線截面</span></span><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">50g/m</span><sup style="margin:0px auto"><span style="margin:0px auto">2</span></sup></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">的比例施加，在試驗附件擺動時，使被試導線能沿松股方向來回扭轉(zhuǎn)</span><span style="margin:0px auto"><span style="margin:0px auto">90</span></span><span style="font-family:宋體; margin:0px auto">°</span><span style="font-family:宋體; margin:0px auto">，每周持續(xù)時間不小于</span><span style="margin:0px auto"><span style="margin:0px auto">5s</span></span><span style="font-family:宋體; margin:0px auto">，試驗</span><span style="margin:0px auto"><span style="margin:0px auto">1000</span></span><span style="font-family:宋體; margin:0px auto">次。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">試驗結(jié)束后，導線護層不出線爆裂皺折，導線解體檢查，其損傷的導線股數(shù)不超過</span><span style="margin:0px auto"><span style="margin:0px auto">1%</span></span><span style="font-family:宋體; margin:0px auto">，</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">則認為試驗通過。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">檢查斷股股數(shù)時，導線的絕緣護層必須剝離，在紋線散股情況下進行。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">4. </span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">線鼻（匯流夾）與多股軟導線間的緊握力試驗</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">試驗線鼻（匯流夾）與多股軟導線間緊握力是否符合要求，被試軟導線的長度應不小于</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">300mm</span></span><span style="font-family:宋體; margin:0px auto">。試驗時，應盡量避免導線受扭曲力。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px; text-indent: 21pt;"><span style="font-size:16px"><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">在試樣上以</span><span style="margin:0px auto"><span style="margin:0px auto">I0N/ </span></span><span style="font-family:宋體; margin:0px auto">（</span></span><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">mm</span><sup style="margin:0px auto"><span style="margin:0px auto">2</span></sup></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">·</span><span style="margin:0px auto"><span style="margin:0px auto">s</span></span><span style="font-family:宋體; margin:0px auto">）速度均勻施加拉力至表</span><span style="margin:0px auto"><span style="margin:0px auto">6-5</span></span><span style="font-family:宋體; margin:0px auto">規(guī)定值，并在此值下持續(xù)</span><span style="margin:0px auto"><span style="margin:0px auto">30s</span></span><span style="font-family:宋體; margin:0px auto">，如連接部分無松脫，則認為試驗通過。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px; text-indent: 21pt;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">表</span><span style="margin:0px auto"><span style="margin:0px auto">6-5<span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">線鼻與多股軟導線的緊握力</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span></p><table border="1" cellpadding="0" cellspacing="0" style="border-collapse:collapse; border:currentcolor; color:rgb(102, 102, 102); font-family:microsoft yahei; font-size:12px; margin:0px auto"><tbody style="margin: 0px auto;"><tr style="margin: 0px auto;"><td style="margin: 0px auto; border: 1pt solid windowtext; background-color: transparent;" width="184"><div style="margin: 0px auto; padding: 0cm 0cm 1pt;"><p align="center" style="margin: 0px auto; text-align: center;"><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto">導線截面（</span><span style="margin:0px auto"><span style="margin:0px auto">mm<sup style="margin:0px auto">2</sup></span></span><span style="font-family:宋體; margin:0px auto">）</span></span></p></div></td><td style="margin: 0px auto; background-color: transparent;" width="222"><div style="margin: 0px auto; padding: 0cm 0cm 1pt;"><p align="center" style="margin: 0px auto; text-align: center;"><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto">大拉應力強度（</span><span style="margin:0px auto"><span style="margin:0px auto">MPa</span></span><span style="font-family:宋體; margin:0px auto">）</span></span></p></div></td></tr><tr style="margin: 0px auto;"><td style="margin: 0px auto; background-color: transparent;" width="184"><div style="margin: 0px auto; padding: 0cm 0cm 1pt;"><p align="center" style="margin: 0px auto; text-align: center;"><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto">≦<span style="margin:0px auto">50</span></span></span></p></div></td><td style="margin: 0px auto; background-color: transparent;" width="222"><div style="margin: 0px auto; padding: 0cm 0cm 1pt;"><p align="center" style="margin: 0px auto; text-align: center;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto">100</span></span></span></p></div></td></tr><tr style="margin: 0px auto;"><td style="margin: 0px auto; background-color: transparent;" width="184"><div style="margin: 0px auto; padding: 0cm 0cm 1pt;"><p align="center" style="margin: 0px auto; text-align: center;"><span style="font-size:16px"><span style="font-family:宋體; margin:0px auto">>50</span></span></p></div></td><td style="margin: 0px auto; background-color: transparent;" width="222"><div style="margin: 0px auto; padding: 0cm 0cm 1pt;"><p align="center" style="margin: 0px auto; text-align: center;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto">80</span></span></span></p></div></td></tr></tbody></table><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"> <img alt="" src="http://img71.chem17.com/9/20190705/636979115691498439203.png" style="height:553px; width:676px" /></span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">5. </span></span><span style="font-family:宋體; margin:0px auto">接地端線夾超緊固力試驗</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">將接地端按使用要求接到接地網(wǎng)上的固定連接點并緊固，緊固力應到達額定緊固力的</span><span style="margin:0px auto"><span style="margin:0px auto">2</span></span><span style="font-family:宋體; margin:0px auto">倍。接地端線夾應無永jiu變形，固定連接點應無損傷。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">6. </span></span><span style="font-family:宋體; margin:0px auto">接地操作棒的機械強度試驗</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">1</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）拉伸試驗。操作棒垂直放置，上下端用夾具固定，施加</span><span style="margin:0px auto"><span style="margin:0px auto">1470N</span></span><span style="font-family:宋體; margin:0px auto">靜負荷</span><span style="margin:0px auto"><span style="margin:0px auto">5min</span></span><span style="font-family:宋體; margin:0px auto">，撤除荷載后，接地操作棒無損壞或永jiu變形。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">2</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）抗彎試驗。接地操作棒水平放置，握手部分端和限位標志處兩點固定，另一端施加兩倍接地操作捧工作部分的質(zhì)量，持續(xù)</span><span style="margin:0px auto"><span style="margin:0px auto">1min</span></span><span style="font-family:宋體; margin:0px auto">，側(cè)量其撓度，撓度應不大于工作部分長度的</span><span style="margin:0px auto"><span style="margin:0px auto">20%</span></span><span style="font-family:宋體; margin:0px auto">，撤除力矩后接地操作棒應無損傷或永jiu變形。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">7. </span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">短路電流試驗</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">（</span><span style="margin:0px auto"><span style="margin:0px auto">1</span></span><span style="font-family:宋體; margin:0px auto">）試驗要求。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">1</span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">）試驗應在具備短路容量的試驗設備上進行。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">2</span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">）試驗相間短路線時使用相—相試驗電源，試驗分相式接地線和組合式短路接地線的接地線支路可使用相—地電源。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">3</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）試驗在</span><span style="margin:0px auto"><span style="margin:0px auto">5</span></span><span style="font-family:宋體; margin:0px auto">～</span><span style="margin:0px auto"><span style="margin:0px auto">40</span></span><span style="font-family:宋體; margin:0px auto">℃</span><span style="font-family:宋體; margin:0px auto">溫度間進行，試驗與濕度無關(guān)。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">4</span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">）可能有短路電流通過的所有接點間的電流通道都要經(jīng)過試驗。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">5</span></span></span><span style="font-family:宋體; margin:0px auto"><span style="margin:0px auto">）試驗裝置應使用老化的導電材料，試驗前不得對導線進行清洗、擦拭和磨光。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">6</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）在短路試驗中，應用示波器記錄電壓和電流以測定電流有效值、峰值電流和試樣持續(xù)時間，示波器所示應滿足：試驗持續(xù)時間不小于額定時間；在額定時間內(nèi)無電流中斷現(xiàn)象；在額定時間內(nèi)大電流峰值除以</span><span style="margin:0px auto"><span style="margin:0px auto">2</span></span><span style="font-family:宋體; margin:0px auto">√</span><span style="margin:0px auto"><span style="margin:0px auto">2</span></span><span style="font-family:宋體; margin:0px auto">值不小于預定試驗電流值；額定時間內(nèi)電壓無異常變化。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">（</span><span style="margin:0px auto"><span style="margin:0px auto">2</span></span><span style="font-family:宋體; margin:0px auto">）試驗參數(shù)。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px; text-indent: 21pt;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">1</span></span><span style="font-family:宋體; margin:0px auto">）試驗頻率為</span><span style="margin:0px auto"><span style="margin:0px auto">45</span></span><span style="font-family:宋體; margin:0px auto">～</span><span style="margin:0px auto"><span style="margin:0px auto">55 Hz</span></span><span style="font-family:宋體; margin:0px auto">。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px; text-indent: 21pt;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">2</span></span><span style="font-family:宋體; margin:0px auto">）試驗電流值取短路接地線額定電流值的</span><span style="margin:0px auto"><span style="margin:0px auto">1.15</span></span><span style="font-family:宋體; margin:0px auto">倍。熱功率的允許誤差為</span><span style="margin:0px auto"><span style="margin:0px auto">-5%</span></span><span style="font-family:宋體; margin:0px auto">～</span><span style="margin:0px auto"><span style="margin:0px auto">+15%</span></span><span style="font-family:宋體; margin:0px auto">。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">3</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）峰值電流倍數(shù)應不小于</span><span style="margin:0px auto"><span style="margin:0px auto">2.5</span></span><span style="font-family:宋體; margin:0px auto">倍。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">4</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）試驗持續(xù)時間為</span><span style="margin:0px auto"><span style="margin:0px auto">1s</span></span><span style="font-family:宋體; margin:0px auto">。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span></span><span style="font-family:宋體; margin:0px auto">（</span><span style="margin:0px auto"><span style="margin:0px auto">3</span></span><span style="font-family:宋體; margin:0px auto">）試驗電路。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> </span></span><span style="margin:0px auto">1</span></span></span><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">）對組合式短路接地線，應在接點多的一個支路上進行線夾間的電流試驗，試驗中不帶電流的部分導線應保留長度為</span><span style="margin:0px auto"><span style="margin:0px auto">300mm</span></span><span style="font-family:宋體; margin:0px auto">。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px; text-indent: 21pt;"><span style="font-size:16px"><span style="margin:0px auto"><span style="font-family:宋體; margin:0px auto">（</span><span style="margin:0px auto"><span style="margin:0px auto">4</span></span><span style="font-family:宋體; margin:0px auto">）試驗結(jié)果。試驗后，導線端和接地端線夾能進行裝拆操作，導線端和接地端線夾未發(fā)生熔焊或自動彈開，對路短路線和接地線未發(fā)生熔斷，匯流夾未發(fā)生熔化或多股軟導線松脫，則認為試驗通過。</span></span></span></p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px; text-indent: 21pt;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto">8.</span></span><span style="font-family:宋體; margin:0px auto">標志的耐久性試驗</span></span></span></p><p> </p><p style="margin: 0px auto; color: rgb(102, 102, 102); font-family: "Microsoft YaHei"; font-size: 12px;"><span style="font-size:16px"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"><span style="margin:0px auto"> 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