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不合格電線電纜(lan)的危害

電線電纜是用(yong)于傳輸電力、傳輸信(xin)息和實(shi)現(xian)電磁能量(liang)轉換的一大(da)(da)類電工產品(pin)。在(zai)抽查過程中，發現(xian)了大(da)(da)量(liang)的不合格產品(pin)，這些劣質產品(pin)給(gei)電力系統正常運行(xing)埋下(xia)諸多隱患。

1、標(biao)(biao)志不(bu)合(he)格(ge)的(de)(de)電(dian)線(xian)電(dian)纜(lan)。標(biao)(biao)志是電(dian)線(xian)電(dian)纜(lan)使(shi)用識別(bie)產(chan)品基本信(xin)息(xi)的(de)(de)主(zhu)要途徑，根(gen)據標(biao)(biao)準(zhun)規定標(biao)(biao)志的(de)(de)主(zhu)要內(nei)容是：產(chan)品型號(hao)(hao)、規格(ge)、標(biao)(biao)準(zhun)號(hao)(hao)、廠名、產(chan)地等在一定的(de)(de)標(biao)(biao)示間距內(nei)，當標(biao)(biao)志不(bu)合(he)格(ge)時，會造成施(shi)工人員識別(bie)錯誤，嚴(yan)重時會引發電(dian)氣事故。

2、結構尺(chi)寸不(bu)合格的電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)。結構尺(chi)寸的主要問(wen)題是(shi)護套厚度(du)，絕緣厚度(du)，當電(dian)(dian)(dian)(dian)纜(lan)的護套和絕緣厚度(du)不(bu)達標時，致(zhi)使電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)氣強度(du)會嚴(yan)重降低，導致(zhi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的使用壽命縮短，嚴(yan)重時可導致(zhi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)被擊(ji)穿，絕緣（護套）層起不(bu)到正常保護作用，從而發(fa)生電(dian)(dian)(dian)(dian)氣短路和火災等現象。

3、護套式絕(jue)緣(yuan)(yuan)老化前(qian)(qian)的(de)(de)抗張(zhang)強(qiang)度、伸長率(lv)合格(ge)的(de)(de)電(dian)(dian)線電(dian)(dian)纜。絕(jue)緣(yuan)(yuan)護套老化前(qian)(qian)的(de)(de)抗張(zhang)強(qiang)度、伸長率(lv)不(bu)合格(ge)直(zhi)接大(da)大(da)縮(suo)短(duan)電(dian)(dian)線電(dian)(dian)纜的(de)(de)工作(zuo)用壽命，而(er)且在(zai)施工或(huo)在(zai)長時間(jian)通電(dian)(dian)且溫度較高的(de)(de)環境中，極易出(chu)現絕(jue)緣(yuan)(yuan)體(ti)斷裂(lie)，致(zhi)使帶電(dian)(dian)導體(ti)裸露，發生(sheng)(sheng)能觸電(dian)(dian)式短(duan)路(lu)危險。其(qi)不(bu)合格(ge)的(de)(de)主要原(yuan)因(yin)是使用了再生(sheng)(sheng)料生(sheng)(sheng)產，以降低產品(pin)成本，二是不(bu)具備生(sheng)(sheng)產資格(ge)小型企(qi)業(ye)。

4、導(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)不合格(ge)的(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)主要是考核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)(ti)材料以(yi)及截面是否符合的(de)(de)重要指(zhi)標。當導(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)超(chao)(chao)標時(shi)，就增大了(le)電(dian)(dian)(dian)流在線(xian)路上通過(guo)時(shi)的(de)(de)損(sun)耗(hao)，加劇了(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)不合格(ge)的(de)(de)原因，主要進企業為了(le)降低成本(ben)，將占(zhan)原材料成本(ben)80%的(de)(de)銅材縮(suo)水，要么降低導(dao)體(ti)(ti)(ti)的(de)(de)截面積，要么使(shi)用含雜質過(guo)高的(de)(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重超(chao)(chao)標，在使(shi)用過(guo)程中除(chu)易引發火災，還會加速包覆在電(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電線電纜的過程中(zhong)，消費者(zhe)應注(zhu)意以(yi)下幾個事

第(di)一、要觀察電線(xian)的(de)外(wai)觀。合(he)格產品的(de)絕緣（護套）層(ceng)柔軟(ruan)、有韌(ren)性和伸縮性、表面層(ceng)緊(jin)密、光滑、無(wu)粗糙感。如果(guo)包裹電線(xian)的(de)塑料很(hen)容易被剝去，則存在塑料強度不夠(gou)的(de)問(wen)題。

第(di)二、要(yao)看(kan)電線的(de)(de)截面(mian)(mian)。合格產品的(de)(de)銅芯或鋁芯表(biao)(biao)面(mian)(mian)應該(gai)具(ju)有金屬光澤，表(biao)(biao)面(mian)(mian)發(fa)黑的(de)(de)銅或表(biao)(biao)面(mian)(mian)發(fa)白的(de)(de)鋁說明已被氧(yang)化。

第三、在購買電線(xian)時應注(zhu)意查看質量(liang)合格證書。如果電線(xian)的質量(liang)合格，那么其電線(xian)質量(liang)應該也受過檢驗，不會有太(tai)大的問題。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)制(zhi)(zhi)(zhi)造有限公(gong)(gong)司隸屬凱鵬集團(tuan)下(xia)屬子公(gong)(gong)司，專門從事(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)研發、生產制(zhi)(zhi)(zhi)造，是全(quan)國頗具(ju)實力的沈陽(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠家(jia)，主營產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、控制(zhi)(zhi)(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)等(deng)，以(yi)及(ji)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)代加工(gong)。小編每天會在公(gong)(gong)司官(guan)網發布電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)價格(ge)表，及(ji)時更(geng)新銅(tong)價以(yi)及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠報(bao)價信(xin)息。更(geng)多有關電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)信(xin)息可點擊公(gong)(gong)司官(guan)網szbowen.cn