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耐(nai)高(gao)(gao)溫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)耐(nai)高(gao)(gao)溫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)檢測(ce)(ce)(ce)(ce)的(de)(de)(de)(de)方(fang)(fang)(fang)(fang)(fang)法a） 運(yun)行(xing)(xing)(xing)中(zhong)(zhong)(zhong)(zhong)(zhong)出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，當(dang)(dang)(dang)(dang)(dang)采(cai)用(yong)某(mou)種(zhong)方(fang)(fang)(fang)(fang)(fang)法測(ce)(ce)(ce)(ce)試時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)消(xiao)失(shi)，用(yong)直(zhi)(zhi)流(liu)高(gao)(gao)壓(ya)做泄(xie)(xie)(xie)漏(lou)(lou)試驗，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)耐(nai)壓(ya)正(zheng)常(chang)。 b） 當(dang)(dang)(dang)(dang)(dang)進行(xing)(xing)(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)定(ding)(ding)位(wei)(wei)時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)上(shang)到(dao)(dao)(dao)處(chu)有(you)(you)(you)(you)響(xiang)聲(sheng)。 耐(nai)高(gao)(gao)溫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)檢測(ce)(ce)(ce)(ce)的(de)(de)(de)(de)方(fang)(fang)(fang)(fang)(fang)法a） 運(yun)行(xing)(xing)(xing)中(zhong)(zhong)(zhong)(zhong)(zhong)出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，當(dang)(dang)(dang)(dang)(dang)采(cai)用(yong)某(mou)種(zhong)方(fang)(fang)(fang)(fang)(fang)法測(ce)(ce)(ce)(ce)試時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)消(xiao)失(shi)，用(yong)直(zhi)(zhi)流(liu)高(gao)(gao)壓(ya)做泄(xie)(xie)(xie)漏(lou)(lou)試驗，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)耐(nai)壓(ya)正(zheng)常(chang)。 b） 當(dang)(dang)(dang)(dang)(dang)進行(xing)(xing)(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)定(ding)(ding)位(wei)(wei)時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)上(shang)到(dao)(dao)(dao)處(chu)有(you)(you)(you)(you)響(xiang)聲(sheng)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)存(cun)在明(ming)顯(xian)的(de)(de)(de)(de)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)高(gao)(gao)阻(zu)(zu)(zu)(zu)(zu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，但(dan)無(wu)(wu)(wu)論(lun)(lun)(lun)采(cai)用(yong)什么(me)方(fang)(fang)(fang)(fang)(fang)法都找(zhao)(zhao)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)到(dao)(dao)(dao)。 d） 當(dang)(dang)(dang)(dang)(dang)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)進行(xing)(xing)(xing)燒(shao)穿(chuan)時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)非(fei)(fei)(fei)但(dan)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)降(jiang)(jiang)(jiang)低(di)，反(fan)(fan)而(er)升(sheng)高(gao)(gao)很(hen)多(duo)。 出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)上(shang)述現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)歸(gui)納起(qi)來(lai)有(you)(you)(you)(you)以(yi)(yi)下(xia)幾個原(yuan)(yuan)因： a） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)絕(jue)(jue)緣(yuan)材料(liao)為(wei)固(gu)(gu)體材料(liao)，與(yu)(yu)油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)比較(jiao)有(you)(you)(you)(you)其(qi)(qi)特(te)(te)殊的(de)(de)(de)(de)一(yi)(yi)面。如(ru)氣隙放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，偶極(ji)(ji)(ji)子 （如(ru):水(shui)份(fen)(fen)）極(ji)(ji)(ji)化等(deng)(deng)，這(zhe)些(xie)(xie)在油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)存(cun)在的(de)(de)(de)(de)。 b） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)問(wen)題不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)易顯(xian)露(lu)，很(hen)難(nan)(nan)(nan)界定(ding)(ding)，如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)某(mou)一(yi)(yi)段無(wu)(wu)(wu)半導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)等(deng)(deng)很(hen) 難(nan)(nan)(nan)發現(xian)(xian)(xian)(xian)(xian)(xian)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)制(zhi)做工藝，如(ru)終(zhong)端(duan)(duan)頭(tou)(tou)(tou)連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)(di)線(xian)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)準(zhun)確，應該(gai)是(shi)(shi)(shi)(shi)(shi)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)，而(er)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)金(jin)(jin)屬護(hu)層(ceng)(ceng)(ceng)(ceng)(ceng)，或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu) 不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)；又如(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)間接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)未(wei)(wei)(wei)與(yu)(yu)本(ben)體連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)存(cun)在明(ming)顯(xian)的(de)(de)(de)(de)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)高(gao)(gao)阻(zu)(zu)(zu)(zu)(zu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，但(dan)無(wu)(wu)(wu)論(lun)(lun)(lun)采(cai)用(yong)什么(me)方(fang)(fang)(fang)(fang)(fang)法都找(zhao)(zhao)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)到(dao)(dao)(dao)。 d） 當(dang)(dang)(dang)(dang)(dang)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)進行(xing)(xing)(xing)燒(shao)穿(chuan)時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)非(fei)(fei)(fei)但(dan)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)降(jiang)(jiang)(jiang)低(di)，反(fan)(fan)而(er)升(sheng)高(gao)(gao)很(hen)多(duo)。 出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)上(shang)述現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)歸(gui)納起(qi)來(lai)有(you)(you)(you)(you)以(yi)(yi)下(xia)幾個原(yuan)(yuan)因： a） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)絕(jue)(jue)緣(yuan)材料(liao)為(wei)固(gu)(gu)體材料(liao)，與(yu)(yu)油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)比較(jiao)有(you)(you)(you)(you)其(qi)(qi)特(te)(te)殊的(de)(de)(de)(de)一(yi)(yi)面。如(ru)氣隙放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，偶極(ji)(ji)(ji)子 （如(ru):水(shui)份(fen)(fen)）極(ji)(ji)(ji)化等(deng)(deng)，這(zhe)些(xie)(xie)在油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)存(cun)在的(de)(de)(de)(de)。 b） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)問(wen)題不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)易顯(xian)露(lu)，很(hen)難(nan)(nan)(nan)界定(ding)(ding)，如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)某(mou)一(yi)(yi)段無(wu)(wu)(wu)半導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)等(deng)(deng)很(hen) 難(nan)(nan)(nan)發現(xian)(xian)(xian)(xian)(xian)(xian)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)制(zhi)做工藝，如(ru)終(zhong)端(duan)(duan)頭(tou)(tou)(tou)連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)(di)線(xian)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)準(zhun)確，應該(gai)是(shi)(shi)(shi)(shi)(shi)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)，而(er)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)金(jin)(jin)屬護(hu)層(ceng)(ceng)(ceng)(ceng)(ceng)，或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu) 不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)；又如(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)間接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)未(wei)(wei)(wei)與(yu)(yu)本(ben)體連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)。纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)檢測(ce)(ce)(ce)(ce)的(de)(de)(de)(de)方(fang)(fang)(fang)(fang)(fang)法a） 運(yun)行(xing)(xing)(xing)中(zhong)(zhong)(zhong)(zhong)(zhong)出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，當(dang)(dang)(dang)(dang)(dang)采(cai)用(yong)某(mou)種(zhong)方(fang)(fang)(fang)(fang)(fang)法測(ce)(ce)(ce)(ce)試時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)消(xiao)失(shi)，用(yong)直(zhi)(zhi)流(liu)高(gao)(gao)壓(ya)做泄(xie)(xie)(xie)漏(lou)(lou)試驗，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)耐(nai)壓(ya)正(zheng)常(chang)。 b） 當(dang)(dang)(dang)(dang)(dang)進行(xing)(xing)(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)定(ding)(ding)位(wei)(wei)時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)上(shang)到(dao)(dao)(dao)處(chu)有(you)(you)(you)(you)響(xiang)聲(sheng)。 耐(nai)高(gao)(gao)溫電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)檢測(ce)(ce)(ce)(ce)的(de)(de)(de)(de)方(fang)(fang)(fang)(fang)(fang)法a） 運(yun)行(xing)(xing)(xing)中(zhong)(zhong)(zhong)(zhong)(zhong)出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，當(dang)(dang)(dang)(dang)(dang)采(cai)用(yong)某(mou)種(zhong)方(fang)(fang)(fang)(fang)(fang)法測(ce)(ce)(ce)(ce)試時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)消(xiao)失(shi)，用(yong)直(zhi)(zhi)流(liu)高(gao)(gao)壓(ya)做泄(xie)(xie)(xie)漏(lou)(lou)試驗，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)耐(nai)壓(ya)正(zheng)常(chang)。 b） 當(dang)(dang)(dang)(dang)(dang)進行(xing)(xing)(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)定(ding)(ding)位(wei)(wei)時(shi)(shi)，電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)上(shang)到(dao)(dao)(dao)處(chu)有(you)(you)(you)(you)響(xiang)聲(sheng)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)存(cun)在明(ming)顯(xian)的(de)(de)(de)(de)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)高(gao)(gao)阻(zu)(zu)(zu)(zu)(zu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，但(dan)無(wu)(wu)(wu)論(lun)(lun)(lun)采(cai)用(yong)什么(me)方(fang)(fang)(fang)(fang)(fang)法都找(zhao)(zhao)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)到(dao)(dao)(dao)。 d） 當(dang)(dang)(dang)(dang)(dang)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)進行(xing)(xing)(xing)燒(shao)穿(chuan)時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)非(fei)(fei)(fei)但(dan)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)降(jiang)(jiang)(jiang)低(di)，反(fan)(fan)而(er)升(sheng)高(gao)(gao)很(hen)多(duo)。 出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)上(shang)述現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)歸(gui)納起(qi)來(lai)有(you)(you)(you)(you)以(yi)(yi)下(xia)幾個原(yuan)(yuan)因： a） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)絕(jue)(jue)緣(yuan)材料(liao)為(wei)固(gu)(gu)體材料(liao)，與(yu)(yu)油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)比較(jiao)有(you)(you)(you)(you)其(qi)(qi)特(te)(te)殊的(de)(de)(de)(de)一(yi)(yi)面。如(ru)氣隙放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，偶極(ji)(ji)(ji)子 （如(ru):水(shui)份(fen)(fen)）極(ji)(ji)(ji)化等(deng)(deng)，這(zhe)些(xie)(xie)在油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)存(cun)在的(de)(de)(de)(de)。 b） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)問(wen)題不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)易顯(xian)露(lu)，很(hen)難(nan)(nan)(nan)界定(ding)(ding)，如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)某(mou)一(yi)(yi)段無(wu)(wu)(wu)半導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)等(deng)(deng)很(hen) 難(nan)(nan)(nan)發現(xian)(xian)(xian)(xian)(xian)(xian)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)制(zhi)做工藝，如(ru)終(zhong)端(duan)(duan)頭(tou)(tou)(tou)連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)(di)線(xian)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)準(zhun)確，應該(gai)是(shi)(shi)(shi)(shi)(shi)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)，而(er)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)金(jin)(jin)屬護(hu)層(ceng)(ceng)(ceng)(ceng)(ceng)，或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu) 不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)；又如(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)間接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)未(wei)(wei)(wei)與(yu)(yu)本(ben)體連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)存(cun)在明(ming)顯(xian)的(de)(de)(de)(de)泄(xie)(xie)(xie)漏(lou)(lou)性(xing)高(gao)(gao)阻(zu)(zu)(zu)(zu)(zu)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)，但(dan)無(wu)(wu)(wu)論(lun)(lun)(lun)采(cai)用(yong)什么(me)方(fang)(fang)(fang)(fang)(fang)法都找(zhao)(zhao)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)到(dao)(dao)(dao)。 d） 當(dang)(dang)(dang)(dang)(dang)對(dui)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)進行(xing)(xing)(xing)燒(shao)穿(chuan)時(shi)(shi)，故(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)(gu)障(zhang)(zhang)(zhang)(zhang)(zhang)(zhang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)(zu)非(fei)(fei)(fei)但(dan)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)降(jiang)(jiang)(jiang)低(di)，反(fan)(fan)而(er)升(sheng)高(gao)(gao)很(hen)多(duo)。 出(chu)現(xian)(xian)(xian)(xian)(xian)(xian)上(shang)述現(xian)(xian)(xian)(xian)(xian)(xian)象(xiang)歸(gui)納起(qi)來(lai)有(you)(you)(you)(you)以(yi)(yi)下(xia)幾個原(yuan)(yuan)因： a） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)絕(jue)(jue)緣(yuan)材料(liao)為(wei)固(gu)(gu)體材料(liao)，與(yu)(yu)油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)比較(jiao)有(you)(you)(you)(you)其(qi)(qi)特(te)(te)殊的(de)(de)(de)(de)一(yi)(yi)面。如(ru)氣隙放(fang)(fang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)，偶極(ji)(ji)(ji)子 （如(ru):水(shui)份(fen)(fen)）極(ji)(ji)(ji)化等(deng)(deng)，這(zhe)些(xie)(xie)在油(you)(you)浸(jin)(jin)紙介(jie)質(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)是(shi)(shi)(shi)(shi)(shi)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)存(cun)在的(de)(de)(de)(de)。 b） 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)的(de)(de)(de)(de)質(zhi)量(liang)(liang)(liang)問(wen)題不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)易顯(xian)露(lu)，很(hen)難(nan)(nan)(nan)界定(ding)(ding)，如(ru)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)中(zhong)(zhong)(zhong)(zhong)(zhong)某(mou)一(yi)(yi)段無(wu)(wu)(wu)半導(dao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)等(deng)(deng)很(hen) 難(nan)(nan)(nan)發現(xian)(xian)(xian)(xian)(xian)(xian)。 c) 電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)(lan)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)制(zhi)做工藝，如(ru)終(zhong)端(duan)(duan)頭(tou)(tou)(tou)連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)地(di)(di)(di)線(xian)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)準(zhun)確，應該(gai)是(shi)(shi)(shi)(shi)(shi)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)，而(er)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)是(shi)(shi)(shi)(shi)(shi)金(jin)(jin)屬護(hu)層(ceng)(ceng)(ceng)(ceng)(ceng)，或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu) 不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)；又如(ru)中(zhong)(zhong)(zhong)(zhong)(zhong)間接(jie)(jie)(jie)(jie)(jie)(jie)(jie)頭(tou)(tou)(tou)沒(mei)(mei)(mei)有(you)(you)(you)(you)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)或(huo)(huo)銅屏(ping)(ping)(ping)蔽(bi)(bi)(bi)(bi)層(ceng)(ceng)(ceng)(ceng)(ceng)未(wei)(wei)(wei)與(yu)(yu)本(ben)體連(lian)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)或(huo)(huo)接(jie)(jie)(jie)(jie)(jie)(jie)(jie)觸(chu)(chu)(chu)不(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)(bu)良等(deng)(deng)。