找到(dao)故(gu)障點但不能(neng)迅速(su)隔(ge)離的，若系(xi)雙母線(xian)中的一組(zu)母線(xian)故(gu)障時，應迅速(su)對故(gu)障母線(xian)上的各元件檢查，確認無故(gu)障后，冷(leng)倒至運行母線(xian)并恢復送(song)電，聯路線(xian)要防(fang)止非(fei)同(tong)期合(he)閘。

經過(guo)檢查找(zhao)不(bu)到故(gu)(gu)障(zhang)點時(shi)，應用(yong)(yong)外來電(dian)源(yuan)(yuan)(yuan)對(dui)(dui)故(gu)(gu)障(zhang)母(mu)線(xian)(xian)(xian)進(jin)行(xing)試送(song)(song)電(dian)。發(fa)電(dian)廠(chang)(chang)母(mu)線(xian)(xian)(xian)故(gu)(gu)障(zhang)如電(dian)源(yuan)(yuan)(yuan)允許，可對(dui)(dui)母(mu)線(xian)(xian)(xian)進(jin)行(xing)零起(qi)升壓，一(yi)般不(bu)允許發(fa)電(dian)廠(chang)(chang)用(yong)(yong)本廠(chang)(chang)電(dian)源(yuan)(yuan)(yuan)對(dui)(dui)故(gu)(gu)障(zhang)母(mu)線(xian)(xian)(xian).雙(shuang)母(mu)線(xian)(xian)(xian)中的(de)(de)一(yi)組母(mu)線(xian)(xian)(xian)故(gu)(gu)障(zhang)，用(yong)(yong)發(fa)電(dian)機(ji)對(dui)(dui)故(gu)(gu)障(zhang)母(mu)線(xian)(xian)(xian)進(jin)行(xing)零起(qi)升壓時(shi)，或用(yong)(yong)外來電(dian)源(yuan)(yuan)(yuan)對(dui)(dui)故(gu)(gu)障(zhang)母(mu)線(xian)(xian)(xian)試送(song)(song)電(dian)時(shi)，或用(yong)(yong)外來電(dian)源(yuan)(yuan)(yuan)對(dui)(dui)已(yi)隔離故(gu)(gu)障(zhang)點的(de)(de)母(mu)線(xian)(xian)(xian)先(xian)受電(dian)時(shi)，鋁合金母(mu)線(xian)(xian)(xian)槽(cao)廠(chang)(chang)家，均需注意母(mu)差保(bao)護的(de)(de)運行(xing)方式(shi)，必(bi)要(yao)時(shi)應停用(yong)(yong)母(mu)差保(bao)護。

母線(xian)(xian)：是中間可以(yi)接出(chu)分支(zhi)線(xian)(xian)的(de)(de)(de)，在(zai)化工廠使用的(de)(de)(de)過(guo)程中線(xian)(xian)路接出(chu)分線(xian)(xian)更”靈活(huo)”些(xie)所采用的(de)(de)(de)防護套聚(ju)烯烴高聚(ju)物高溫散發出(chu)的(de)(de)(de)氣味(wei)***，要知道化工廠內及附近的(de)(de)(de)空氣可能有腐蝕性(xing)，所以(yi)要選(xuan)擇防腐蝕性(xing)強的(de)(de)(de)管型母線(xian)(xian)。

   電(dian)纜：不能在中間破(po)口接(jie)(jie)出分支(zhi)線，多數選用電(dian)纜終(zhong)端頭(tou)來連(lian)(lian)接(jie)(jie)設備，在連(lian)(lian)接(jie)(jie)設備的時候特別是空(kong)間狹小(xiao)的情況下更容易造成(cheng)大量的電(dian)纜材(cai)料浪費。

 母(mu)(mu)(mu)線(xian)槽(cao)(cao)散(san)(san)(san)熱(re)性能(neng)好.電纜(lan)(lan)的(de)絕緣材(cai)料(liao)（芯(xin)線(xian)絕緣和(he)外皮絕緣）既是絕緣材(cai)料(liao)，鋁合(he)金母(mu)(mu)(mu)線(xian)槽(cao)(cao)供應，又是隔熱(re)材(cai)料(liao)，因(yin)此電力電纜(lan)(lan)在橋架內敷設(she)時(shi)，允許(xu)敷設(she)2層，其原因(yin)是考慮散(san)(san)(san)熱(re)。母(mu)(mu)(mu)線(xian)槽(cao)(cao)利用(yong)空氣傳導散(san)(san)(san)熱(re)，并通(tong)(tong)過緊密接(jie)觸的(de)鋼制(zhi)外殼，把熱(re)量散(san)(san)(san)發出去(qu)，因(yin)此它的(de)散(san)(san)(san)熱(re)性能(neng)和(he)電纜(lan)(lan)相比，鋁合(he)金母(mu)(mu)(mu)線(xian)槽(cao)(cao)公(gong)司，電纜(lan)(lan)散(san)(san)(san)熱(re)性能(neng)可見(jian)一斑(ban)了。  母(mu)(mu)(mu)線(xian)槽(cao)(cao)幾乎不必(bi)維(wei)護(hu)(hu)，宣威鋁合(he)金母(mu)(mu)(mu)線(xian)槽(cao)(cao)，日常維(wei)護(hu)(hu)通(tong)(tong)常是測量外殼和(he)穿芯(xin)螺(luo)(luo)栓(shuan)的(de)溫(wen)升(sheng)、進線(xian)箱的(de)接(jie)頭(tou)溫(wen)升(sheng)等，穿芯(xin)螺(luo)(luo)栓(shuan)若采(cai)用(yong)4.8級，則(ze)需(xu)(xu)要(yao)(yao)定(ding)期緊固，若采(cai)用(yong)8.8級的(de)高(gao)強螺(luo)(luo)栓(shuan)則(ze)不需(xu)(xu)要(yao)(yao)定(ding)期堅(jian)固。而電纜(lan)(lan)因(yin)其材(cai)料(liao)易于磨損、易老化(hua)、壽命(ming)較短等因(yin)素限(xian)制(zhi)，需(xu)(xu)要(yao)(yao)定(ding)期進行檢查(cha)和(he)維(wei)護(hu)(hu)，甚至更換.