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不合格電(dian)線電(dian)纜(lan)的危害

電線電纜是用于傳(chuan)輸電力、傳(chuan)輸信息和實(shi)現電磁能(neng)量轉換(huan)的(de)一大類電工產品。在抽查過程(cheng)中，發現了大量的(de)不(bu)合格產品，這些劣質產品給(gei)電力系統正常運行埋下諸多隱(yin)患。

1、標(biao)(biao)志(zhi)(zhi)不合格的(de)電線電纜。標(biao)(biao)志(zhi)(zhi)是電線電纜使用(yong)識(shi)別產品(pin)基本(ben)信息的(de)主要途徑(jing)，根據標(biao)(biao)準規(gui)定標(biao)(biao)志(zhi)(zhi)的(de)主要內(nei)容是：產品(pin)型(xing)號(hao)、規(gui)格、標(biao)(biao)準號(hao)、廠名(ming)、產地等在一(yi)定的(de)標(biao)(biao)示間距內(nei)，當標(biao)(biao)志(zhi)(zhi)不合格時，會(hui)造成施工人員識(shi)別錯誤，嚴重時會(hui)引發電氣事故。

2、結構尺(chi)寸不(bu)(bu)合格的(de)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)。結構尺(chi)寸的(de)主要問(wen)題是(shi)護套厚度，絕(jue)(jue)緣(yuan)厚度，當電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)護套和絕(jue)(jue)緣(yuan)厚度不(bu)(bu)達標時(shi)，致使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)(dian)(dian)氣(qi)強(qiang)度會嚴重降低，導致電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)使用壽命縮短，嚴重時(shi)可導致電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)被(bei)擊穿(chuan)，絕(jue)(jue)緣(yuan)（護套）層起不(bu)(bu)到正常保護作用，從(cong)而(er)發生(sheng)電(dian)(dian)(dian)(dian)氣(qi)短路和火災等現象。

3、護套式絕緣老化前的(de)抗張強度(du)、伸(shen)長率合(he)格的(de)電(dian)線電(dian)纜。絕緣護套老化前的(de)抗張強度(du)、伸(shen)長率不合(he)格直接大大縮(suo)短電(dian)線電(dian)纜的(de)工作用壽(shou)命，而且在(zai)施工或在(zai)長時間通電(dian)且溫度(du)較高的(de)環境(jing)中，極易(yi)出現絕緣體斷(duan)裂，致使帶(dai)電(dian)導體裸(luo)露，發生能觸電(dian)式短路危(wei)險(xian)。其(qi)不合(he)格的(de)主要(yao)原因是(shi)使用了再生料生產(chan)(chan)，以降低產(chan)(chan)品成本，二(er)是(shi)不具備生產(chan)(chan)資格小型企業。

4、導體(ti)(ti)(ti)電(dian)阻(zu)(zu)不合(he)格(ge)的(de)(de)電(dian)線(xian)。導體(ti)(ti)(ti)電(dian)阻(zu)(zu)主要是考核電(dian)線(xian)電(dian)纜(lan)的(de)(de)導體(ti)(ti)(ti)材料以及截(jie)面(mian)是否符合(he)的(de)(de)重要指標。當導體(ti)(ti)(ti)電(dian)阻(zu)(zu)超標時(shi)，就增大了電(dian)流在線(xian)路上通過時(shi)的(de)(de)損耗，加(jia)劇了電(dian)線(xian)電(dian)纜(lan)的(de)(de)發熱。導體(ti)(ti)(ti)電(dian)阻(zu)(zu)不合(he)格(ge)的(de)(de)原(yuan)因，主要進企業為了降(jiang)低成(cheng)(cheng)本，將占原(yuan)材料成(cheng)(cheng)本80%的(de)(de)銅(tong)材縮水，要么(me)降(jiang)低導體(ti)(ti)(ti)的(de)(de)截(jie)面(mian)積，要么(me)使用含雜質過高(gao)的(de)(de)再生銅(tong)，這(zhe)樣致使電(dian)線(xian)電(dian)纜(lan)的(de)(de)導體(ti)(ti)(ti)電(dian)阻(zu)(zu)嚴重超標，在使用過程中除易引發火災，還(huan)會加(jia)速包覆在電(dian)線(xian)外(wai)的(de)(de)絕緣(yuan)層(ceng)的(de)(de)老(lao)化。

在購買(mai)電線電纜的過(guo)程中(zhong)，消費者應注意(yi)以下(xia)幾個事

第一、要(yao)觀(guan)察電線(xian)的(de)(de)外觀(guan)。合(he)格產品的(de)(de)絕緣（護套）層(ceng)柔軟、有韌性(xing)和伸(shen)縮性(xing)、表(biao)面層(ceng)緊密(mi)、光滑、無粗糙感(gan)。如(ru)果包(bao)裹電線(xian)的(de)(de)塑料(liao)很容易被剝去，則存在塑料(liao)強度不夠(gou)的(de)(de)問題(ti)。

第二、要看電線的(de)截面。合格產品的(de)銅芯(xin)(xin)或(huo)鋁芯(xin)(xin)表面應該具有金屬光澤，表面發(fa)黑(hei)的(de)銅或(huo)表面發(fa)白的(de)鋁說明已被氧化。

第三、在購買電線時應(ying)注意查看(kan)質(zhi)量(liang)合格證書(shu)。如(ru)果電線的質(zhi)量(liang)合格，那么其電線質(zhi)量(liang)應(ying)該也受過(guo)檢驗，不會有太大(da)的問題。

沈(shen)陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造(zao)有(you)(you)限公(gong)(gong)司(si)隸屬凱(kai)鵬(peng)集(ji)團(tuan)下屬子公(gong)(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產(chan)(chan)制(zhi)造(zao)，是全國頗具實力的(de)沈(shen)陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)家，主營產(chan)(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加(jia)工(gong)。小編每天會在公(gong)(gong)司(si)官網發布(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及時更(geng)新銅價(jia)以及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)報價(jia)信(xin)息。更(geng)多有(you)(you)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)息可點擊(ji)公(gong)(gong)司(si)官網szbowen.cn