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不合格電線電纜的(de)危害(hai)

電線(xian)電纜(lan)是用于傳輸電力(li)、傳輸信息和(he)實現(xian)電磁能量(liang)轉換的一大類電工產品(pin)(pin)。在抽查過程(cheng)中(zhong)，發(fa)現(xian)了大量(liang)的不合格(ge)產品(pin)(pin)，這(zhe)些(xie)劣質產品(pin)(pin)給電力(li)系統正(zheng)常(chang)運行埋下諸多隱患。

1、標(biao)(biao)(biao)志不合格(ge)的(de)(de)電線電纜。標(biao)(biao)(biao)志是(shi)電線電纜使用識別(bie)產(chan)品(pin)基本信息(xi)的(de)(de)主要(yao)途徑，根據標(biao)(biao)(biao)準規定標(biao)(biao)(biao)志的(de)(de)主要(yao)內(nei)容是(shi)：產(chan)品(pin)型號、規格(ge)、標(biao)(biao)(biao)準號、廠名、產(chan)地等(deng)在(zai)一(yi)定的(de)(de)標(biao)(biao)(biao)示間距(ju)內(nei)，當標(biao)(biao)(biao)志不合格(ge)時，會造成施工人員(yuan)識別(bie)錯誤(wu)，嚴重時會引發電氣事故。

2、結構尺寸(cun)不合(he)格的(de)(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。結構尺寸(cun)的(de)(de)主(zhu)要問題是護(hu)(hu)套(tao)厚度(du)，絕緣(yuan)厚度(du)，當電(dian)(dian)(dian)纜(lan)的(de)(de)護(hu)(hu)套(tao)和絕緣(yuan)厚度(du)不達(da)標(biao)時，致(zhi)使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)氣強度(du)會嚴(yan)重降(jiang)低(di)，導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)(de)使用(yong)壽命(ming)縮(suo)短，嚴(yan)重時可導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)被擊穿，絕緣(yuan)（護(hu)(hu)套(tao)）層起不到正常保護(hu)(hu)作用(yong)，從而(er)發(fa)生電(dian)(dian)(dian)氣短路和火災等現(xian)象。

3、護套式絕(jue)(jue)緣老(lao)化(hua)前(qian)的(de)抗張(zhang)強(qiang)度(du)、伸(shen)長率合(he)格(ge)的(de)電(dian)線電(dian)纜。絕(jue)(jue)緣護套老(lao)化(hua)前(qian)的(de)抗張(zhang)強(qiang)度(du)、伸(shen)長率不(bu)合(he)格(ge)直(zhi)接(jie)大(da)大(da)縮短(duan)電(dian)線電(dian)纜的(de)工作(zuo)用壽命(ming)，而且(qie)在(zai)施工或在(zai)長時(shi)間通電(dian)且(qie)溫度(du)較高的(de)環境中，極(ji)易出現絕(jue)(jue)緣體(ti)斷裂，致使帶電(dian)導體(ti)裸露，發(fa)生能(neng)觸電(dian)式短(duan)路危(wei)險。其不(bu)合(he)格(ge)的(de)主(zhu)要原因是使用了再生料生產，以(yi)降(jiang)低產品成本(ben)，二是不(bu)具備生產資格(ge)小型企(qi)業。

4、導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不(bu)合格(ge)的(de)(de)(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻主要(yao)是(shi)考(kao)核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)(de)導(dao)(dao)體(ti)(ti)材料(liao)以及截面是(shi)否符合的(de)(de)(de)(de)重要(yao)指標。當導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻超(chao)標時(shi)(shi)，就增大了(le)電(dian)(dian)(dian)流在線(xian)路上通過時(shi)(shi)的(de)(de)(de)(de)損(sun)耗，加劇了(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)(de)發熱。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不(bu)合格(ge)的(de)(de)(de)(de)原因，主要(yao)進(jin)企業為了(le)降低成本，將(jiang)占原材料(liao)成本80%的(de)(de)(de)(de)銅材縮水，要(yao)么(me)降低導(dao)(dao)體(ti)(ti)的(de)(de)(de)(de)截面積，要(yao)么(me)使用含雜質過高的(de)(de)(de)(de)再生銅，這樣致(zhi)使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻嚴重超(chao)標，在使用過程中除(chu)易引發火(huo)災(zai)，還(huan)會加速包覆在電(dian)(dian)(dian)線(xian)外的(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)老化(hua)。

在購買電(dian)線電(dian)纜的過程中，消費(fei)者應注意以下幾(ji)個事(shi)

第一、要觀(guan)察電線的(de)(de)(de)外觀(guan)。合(he)格產品的(de)(de)(de)絕(jue)緣(yuan)（護套(tao)）層柔軟、有韌(ren)性和(he)伸縮性、表面層緊密、光滑、無粗糙感。如果包裹電線的(de)(de)(de)塑料很容(rong)易被剝去，則存在塑料強度不夠(gou)的(de)(de)(de)問題。

第(di)二、要看電線的(de)截面(mian)(mian)。合格產品的(de)銅(tong)芯或(huo)鋁芯表(biao)面(mian)(mian)應該具有(you)金屬光澤，表(biao)面(mian)(mian)發黑(hei)的(de)銅(tong)或(huo)表(biao)面(mian)(mian)發白的(de)鋁說明已被(bei)氧化。

第(di)三、在購(gou)買電線(xian)時應注意(yi)查看(kan)質(zhi)量(liang)合格證書。如果(guo)電線(xian)的質(zhi)量(liang)合格，那么其電線(xian)質(zhi)量(liang)應該(gai)也受過(guo)檢驗，不(bu)會(hui)有太(tai)大的問題。

沈(shen)陽凱鵬電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限(xian)公(gong)司隸屬凱鵬集團(tuan)下屬子(zi)公(gong)司，專門(men)從(cong)事電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)研發(fa)、生產(chan)制造，是全國頗具實力(li)的沈(shen)陽電(dian)(dian)(dian)(dian)纜(lan)(lan)廠家(jia)，主(zhu)營(ying)產(chan)品：電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)氣(qi)裝備用(yong)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)子(zi)計(ji)算機電(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及(ji)(ji)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)代加工(gong)。小編每天會在公(gong)司官網(wang)發(fa)布電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)價格表，及(ji)(ji)時更(geng)(geng)新銅(tong)價以及(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信息。更(geng)(geng)多有關電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)信息可點擊公(gong)司官網(wang)szbowen.cn