電(dian)(dian)(dian)纜識別的(de)小(xiao)技巧1。電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜絕緣層(ceng)不(bu)是采用(yong)(yong)(yong)絕緣塑料(liao)所制，而(er)是用(yong)(yong)(yong)回收塑料(liao)制成，輕(qing)輕(qing)一剝(bo)就能將絕緣層(ceng)剝(bo)開，這樣極(ji)易造(zao)成絕緣層(ceng)被電(dian)(dian)(dian)流擊而(er)穿漏(lou)電(dian)(dian)(dian)，對使(shi)用(yong)(yong)(yong)者的(de)生命財(cai)產安全造(zao)成極(ji)大(da)威脅(xie)。2。導電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜芯(xin)(xin)直流電(dian)(dian)(dian)阻不(bu)合格。電(dian)(dian)(dian)線(xian)導體(ti)的(de)粗細(xi)、優(you)劣(lie)決定(ding)了電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜對電(dian)(dian)(dian)流的(de)負載量，如果電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)線(xian)芯(xin)(xin)采用(yong)(yong)(yong)劣(lie)質的(de)材料(liao)、實際截面遠遠小(xiao)于其所標明的(de)規(gui)格，長期使(shi)用(yong)(yong)(yong)因導體(ti)電(dian)(dian)(dian)阻過(guo)大(da)會造(zao)成發熱，引起電(dian)(dian)(dian)器火災的(de)危險。

怎樣保護電(dian)線(xian)(xian)電(dian)纜(lan)1，電(dian)絕緣管耐腐(fu)蝕性(xing)比較好(hao)，安徽電(dian)線(xian)(xian)，可(ke)以有(you)效的(de)使(shi)電(dian)線(xian)(xian)電(dian)纜(lan)的(de)使(shi)用壽命延長，適(shi)應各種(zhong)環境。2，絕緣性(xing)較好(hao)，具(ju)(ju)有(you)阻燃、耐熱(re)的(de)特(te)性(xing)，可(ke)在(zai)130度高溫下長期使(shi)用而不(bu)變(bian)形。3，剛度韌性(xing)較好(hao)，可(ke)直埋(mai)在(zai)行車(che)道下不(bu)需要加(jia)混凝土作(zuo)為保護層。4，電(dian)線(xian)(xian)電(dian)纜(lan)保護套(tao)管無(wu)論(lun)是(shi)管材(cai)還是(shi)管件都具(ju)(ju)有(you)一(yi)定的(de)柔性(xing)，能抵御(yu)外界重壓和(he)基礎沉降所(suo)引起的(de)破壞。5，具(ju)(ju)有(you)良好(hao)的(de)抗信號(hao)干擾性(xing)能。6，電(dian)線(xian)(xian)電(dian)纜(lan)保護套(tao)內壁(bi)光滑，不(bu)會刮傷電(dian)纜(lan)。設計采用承插式的(de)連接方(fang)式，方(fang)便(bian)安裝連接。接頭(tou)處加(jia)橡膠(jiao)密封圈封即適(shi)應熱(re)脹冷(leng)縮(suo)，又防止(zhi)泥砂進入(ru)。

電線(xian)(xian)電纜(lan)因導(dao)線(xian)(xian)過(guo)(guo)(guo)(guo)載(zai)(zai)而(er)起(qi)火的(de)(de)(de)原因。過(guo)(guo)(guo)(guo)載(zai)(zai)使(shi)雙股導(dao)線(xian)(xian)間(jian)絕(jue)緣層破壞引(yin)(yin)起(qi)短(duan)路(lu)，燒毀設備，電線(xian)(xian)電線(xian)(xian)電纜(lan).價錢，引(yin)(yin)發(fa)火災(zai)。雙股導(dao)線(xian)(xian)靠(kao)其(qi)間(jian)絕(jue)緣層隔開(kai)，過(guo)(guo)(guo)(guo)載(zai)(zai)使(shi)絕(jue)緣層軟(ruan)化(hua)破壞，從而(er)導(dao)致兩股導(dao)線(xian)(xian)直(zhi)接接觸引(yin)(yin)起(qi)短(duan)路(lu)，燒損(sun)設備。同時(shi)短(duan)路(lu)瞬間(jian)大電流1產生的(de)(de)(de)高溫(wen)使(shi)線(xian)(xian)路(lu)起(qi)火、熔斷，產生的(de)(de)(de)熔珠落至(zhi)可燃(ran)(ran)物(wu)引(yin)(yin)發(fa)火災(zai)。過(guo)(guo)(guo)(guo)載(zai)(zai)溫(wen)升還能直(zhi)接引(yin)(yin)燃(ran)(ran)附近可燃(ran)(ran)物(wu)。過(guo)(guo)(guo)(guo)載(zai)(zai)導(dao)線(xian)(xian)傳熱使(shi)附近可燃(ran)(ran)物(wu)溫(wen)度升高，對附近燃(ran)(ran)點較低(di)的(de)(de)(de)可燃(ran)(ran)物(wu)來講，將其(qi)引(yin)(yin)燃(ran)(ran)造成(cheng)火災(zai)是有可能的(de)(de)(de)。在貯存物(wu)品的(de)(de)(de)庫房和使(shi)用易、可燃(ran)(ran)裝修的(de)(de)(de)建筑中，這種(zhong)危(wei)險性(xing)尤為突出(chu)。過(guo)(guo)(guo)(guo)載(zai)(zai)還使(shi)線(xian)(xian)路(lu)中的(de)(de)(de)連(lian)接處在過(guo)(guo)(guo)(guo)熱的(de)(de)(de)條件(jian)下，這加速了(le)(le)其(qi)氧(yang)化(hua)的(de)(de)(de)過(guo)(guo)(guo)(guo)程。氧(yang)化(hua)使(shi)連(lian)接點處產生不易導(dao)電的(de)(de)(de)薄薄一層氧(yang)化(hua)膜(mo)，高溫(wen)電線(xian)(xian)電纜(lan)廠，氧(yang)化(hua)膜(mo)加大了(le)(le)接觸點間(jian)的(de)(de)(de)電阻，從而(er)產生打(da)火等現(xian)象(xiang)，引(yin)(yin)起(qi)火災(zai)。