不合格電線電纜廠家的危害，你知道嗎？

電(dian)線(xian)電(dian)纜是用(yong)于傳輸電(dian)力(li)、傳輸信息(xi)和(he)實現(xian)電(dian)磁能量轉換(huan)的一大類電(dian)工產品。電(dian)線(xian)電(dian)纜行業魚龍混雜，充斥著國標(biao)和(he)非標(biao)產品，每年大部分火災是由使用(yong)劣質(zhi)非標(biao)線(xian)引起，這些劣質(zhi)產品給電(dian)力(li)系統正常運行埋下諸(zhu)多隱(yin)患(huan)。

1、標(biao)(biao)(biao)志(zhi)(zhi)不(bu)合格(ge)的電(dian)線(xian)電(dian)纜(lan)。標(biao)(biao)(biao)志(zhi)(zhi)是電(dian)線(xian)電(dian)纜(lan)使用(yong)識別產品基(ji)本信息的主要(yao)途(tu)徑，根據標(biao)(biao)(biao)準(zhun)規定(ding)(ding)標(biao)(biao)(biao)志(zhi)(zhi)的主要(yao)內容是：產品型號(hao)、規格(ge)、標(biao)(biao)(biao)準(zhun)號(hao)、廠名(ming)、產地(di)等在一定(ding)(ding)的標(biao)(biao)(biao)示間距內，當標(biao)(biao)(biao)志(zhi)(zhi)不(bu)合格(ge)時(shi)，會造成施(shi)工(gong)人員識別錯(cuo)誤，嚴重時(shi)會引發電(dian)氣事(shi)故。

2、結(jie)構(gou)(gou)尺寸不合(he)格的(de)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。結(jie)構(gou)(gou)尺寸的(de)主要問題(ti)是護套(tao)厚度，絕(jue)緣厚度，當電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)護套(tao)和絕(jue)緣厚度不達標時，致使(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)(dian)(dian)(dian)(dian)氣強度會(hui)嚴重降(jiang)低，導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)使(shi)(shi)用(yong)(yong)壽命(ming)縮短(duan)，嚴重時可導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)被擊穿(chuan)，絕(jue)緣（護套(tao)）層起不到正常保護作用(yong)(yong)，從(cong)而發生電(dian)(dian)(dian)(dian)(dian)(dian)氣短(duan)路(lu)和火災等現(xian)象。

3、護套式(shi)絕緣(yuan)(yuan)(yuan)老化前的(de)抗張強(qiang)度(du)、伸長率合(he)格的(de)電(dian)線電(dian)纜。絕緣(yuan)(yuan)(yuan)護套老化前的(de)抗張強(qiang)度(du)、伸長率不合(he)格直接大大縮(suo)短電(dian)線電(dian)纜的(de)工(gong)作用壽命(ming)，而且在施工(gong)或在長時間通電(dian)且溫度(du)較高的(de)環境中，極易出現絕緣(yuan)(yuan)(yuan)體斷(duan)裂，致使(shi)帶電(dian)導(dao)體裸露，發生能觸電(dian)式(shi)短路危險。

4、導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不(bu)合格的(de)(de)(de)電(dian)(dian)線。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)主要(yao)(yao)(yao)是考核電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)材料(liao)以及(ji)截面(mian)是否符合的(de)(de)(de)重要(yao)(yao)(yao)指標。當導(dao)體(ti)(ti)電(dian)(dian)阻(zu)超標時(shi)(shi)，就(jiu)增大(da)了電(dian)(dian)流在(zai)線路上通(tong)過時(shi)(shi)的(de)(de)(de)損耗(hao)，加劇了電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不(bu)合格的(de)(de)(de)原因，主要(yao)(yao)(yao)進企(qi)業為了降低成本(ben)，將占原材料(liao)成本(ben)80%的(de)(de)(de)銅材縮水，要(yao)(yao)(yao)么降低導(dao)體(ti)(ti)的(de)(de)(de)截面(mian)積，要(yao)(yao)(yao)么使用(yong)含雜(za)質過高(gao)的(de)(de)(de)再(zai)生銅，這樣致使電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)電(dian)(dian)阻(zu)嚴(yan)重超標，在(zai)使用(yong)過程中除易引發火災，還會(hui)加速包覆在(zai)電(dian)(dian)線外的(de)(de)(de)絕緣(yuan)層的(de)(de)(de)老(lao)化。