用(yong)(yong)(yong)兆歐(ou)(ou)表(biao)檢測高(gao)(gao)壓電(dian)(dian)(dian)纜絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)與(yu)判斷(duan)(duan)故(gu)障的(de)(de)方法用(yong)(yong)(yong)2500伏(fu)兆歐(ou)(ou)表(biao)測量(liang)每相(xiang)(xiang)地(di)(di)埋(mai)(mai)(mai)線(xian)(xian)(xian)的(de)(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)，如(ru)(ru)(ru)果(guo)(guo)(guo)某(mou)相(xiang)(xiang)對(dui)(dui)地(di)(di)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)值在(zai)30千歐(ou)(ou)以下(xia)(xia)，則(ze)(ze)說(shuo)(shuo)(shuo)明(ming)(ming)(ming)該相(xiang)(xiang)線(xian)(xian)(xian)有接地(di)(di)點(dian)；當地(di)(di)埋(mai)(mai)(mai)線(xian)(xian)(xian)路(lu)(lu)(lu)發生(sheng)斷(duan)(duan)芯(xin)(xin)故(gu)障時，可(ke)將地(di)(di)埋(mai)(mai)(mai)線(xian)(xian)(xian)終端(duan)的(de)(de)三(san)根相(xiang)(xiang)線(xian)(xian)(xian)和(he)中(zhong)(zhong)性(xing)線(xian)(xian)(xian)并(bing)接起(qi)來(lai)，用(yong)(yong)(yong)萬用(yong)(yong)(yong)表(biao)在(zai)線(xian)(xian)(xian)路(lu)(lu)(lu)首端(duan)分(fen)別測量(liang)每兩相(xiang)(xiang)線(xian)(xian)(xian)之(zhi)間和(he)相(xiang)(xiang)線(xian)(xian)(xian)與(yu)中(zhong)(zhong)性(xing)線(xian)(xian)(xian)之(zhi)間的(de)(de)電(dian)(dian)(dian)阻(zu)。如(ru)(ru)(ru)果(guo)(guo)(guo)電(dian)(dian)(dian)阻(zu)不(bu)大，則(ze)(ze)說(shuo)(shuo)(shuo)明(ming)(ming)(ming)電(dian)(dian)(dian)路(lu)(lu)(lu)是(shi)完好的(de)(de)；如(ru)(ru)(ru)果(guo)(guo)(guo)電(dian)(dian)(dian)阻(zu)值高(gao)(gao)達(da)數千歐(ou)(ou)，則(ze)(ze)說(shuo)(shuo)(shuo)明(ming)(ming)(ming)電(dian)(dian)(dian)路(lu)(lu)(lu)有斷(duan)(duan)芯(xin)(xin)處(chu)(chu)；如(ru)(ru)(ru)果(guo)(guo)(guo)三(san)相(xiang)(xiang)對(dui)(dui)中(zhong)(zhong)性(xing)線(xian)(xian)(xian)的(de)(de)電(dian)(dian)(dian)阻(zu)都(dou)是(shi)很(hen)大，而三(san)相(xiang)(xiang)之(zhi)間的(de)(de)電(dian)(dian)(dian)阻(zu)不(bu)大，則(ze)(ze)可(ke)斷(duan)(duan)定中(zhong)(zhong)性(xing)線(xian)(xian)(xian)有斷(duan)(duan)芯(xin)(xin)處(chu)(chu)。用(yong)(yong)(yong)萬用(yong)(yong)(yong)表(biao)測量(liang)每相(xiang)(xiang)地(di)(di)埋(mai)(mai)(mai)線(xian)(xian)(xian)的(de)(de)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)，高(gao)(gao)低(di)壓開關柜(ju)通電(dian)(dian)(dian)試(shi)驗(yan)臺如(ru)(ru)(ru)果(guo)(guo)(guo)某(mou)相(xiang)(xiang)對(dui)(dui)地(di)(di)絕(jue)(jue)(jue)(jue)緣(yuan)(yuan)電(dian)(dian)(dian)阻(zu)值在(zai)30千歐(ou)(ou)以下(xia)(xia)，則(ze)(ze)說(shuo)(shuo)(shuo)明(ming)(ming)(ming)該相(xiang)(xiang)線(xian)(xian)(xian)有接地(di)(di)點(dian)；當地(di)(di)埋(mai)(mai)(mai)線(xian)(xian)(xian)路(lu)(lu)(lu)發生(sheng)斷(duan)(duan)芯(xin)(xin)故(gu)障時，可(ke)將地(di)(di)埋(mai)(mai)(mai)線(xian)(xian)(xian)終端(duan)的(de)(de)三(san)根相(xiang)(xiang)線(xian)(xian)(xian)和(he)中(zhong)(zhong)性(xing)線(xian)(xian)(xian)并(bing)接起(qi)來(lai)，用(yong)(yong)(yong)萬用(yong)(yong)(yong)表(biao)在(zai)線(xian)(xian)(xian)路(lu)(lu)(lu)首端(duan)分(fen)別測量(liang)每兩相(xiang)(xiang)線(xian)(xian)(xian)之(zhi)間和(he)相(xiang)(xiang)線(xian)(xian)(xian)與(yu)中(zhong)(zhong)性(xing)線(xian)(xian)(xian)之(zhi)間的(de)(de)電(dian)(dian)(dian)阻(zu)。如(ru)(ru)(ru)果(guo)(guo)(guo)電(dian)(dian)(dian)阻(zu)不(bu)大，則(ze)(ze)說(shuo)(shuo)(shuo)明(ming)(ming)(ming)電(dian)(dian)(dian)路(lu)(lu)(lu)是(shi)完好的(de)(de)；如(ru)(ru)(ru)果(guo)(guo)(guo)電(dian)(dian)(dian)阻(zu)值高(gao)(gao)達(da)數千歐(ou)(ou)，則(ze)(ze)說(shuo)(shuo)(shuo)明(ming)(ming)(ming)電(dian)(dian)(dian)路(lu)(lu)(lu)有斷(duan)(duan)芯(xin)(xin)處(chu)(chu)；如(ru)(ru)(ru)果(guo)(guo)(guo)三(san)相(xiang)(xiang)對(dui)(dui)中(zhong)(zhong)性(xing)線(xian)(xian)(xian)的(de)(de)電(dian)(dian)(dian)阻(zu)都(dou)是(shi)很(hen)大，而三(san)相(xiang)(xiang)之(zhi)間的(de)(de)電(dian)(dian)(dian)阻(zu)不(bu)大，則(ze)(ze)可(ke)斷(duan)(duan)定中(zhong)(zhong)性(xing)線(xian)(xian)(xian)有斷(duan)(duan)芯(xin)(xin)處(chu)(chu)。