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不合格電線電纜的(de)危害(hai)

電(dian)(dian)線(xian)電(dian)(dian)纜是用于傳(chuan)輸電(dian)(dian)力、傳(chuan)輸信(xin)息和實現電(dian)(dian)磁能量轉(zhuan)換的一大(da)(da)類電(dian)(dian)工產品。在抽查過程中，發(fa)現了(le)大(da)(da)量的不合格產品，這些劣質產品給(gei)電(dian)(dian)力系統(tong)正常運行埋下諸多隱患。

1、標(biao)志不合(he)格(ge)的(de)(de)(de)電(dian)線電(dian)纜。標(biao)志是(shi)電(dian)線電(dian)纜使用識別產品基本信息的(de)(de)(de)主(zhu)要途徑，根據標(biao)準(zhun)規定(ding)(ding)標(biao)志的(de)(de)(de)主(zhu)要內容是(shi)：產品型(xing)號、規格(ge)、標(biao)準(zhun)號、廠名(ming)、產地等在一定(ding)(ding)的(de)(de)(de)標(biao)示間距內，當標(biao)志不合(he)格(ge)時，會造(zao)成施工(gong)人(ren)員(yuan)識別錯誤，嚴重時會引(yin)發電(dian)氣(qi)事(shi)故(gu)。

2、結構尺寸(cun)不(bu)合格的(de)(de)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)。結構尺寸(cun)的(de)(de)主要問題是護套厚度(du)，絕緣厚度(du)，當電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)護套和絕緣厚度(du)不(bu)達(da)標時，致使(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)氣(qi)強度(du)會嚴(yan)重降低，導致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)使(shi)用(yong)壽命縮短，嚴(yan)重時可(ke)導致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)被擊穿，絕緣（護套）層起不(bu)到(dao)正常保(bao)護作(zuo)用(yong)，從而發生(sheng)電(dian)(dian)(dian)(dian)氣(qi)短路和火災等(deng)現象。

3、護套(tao)式絕(jue)緣老(lao)(lao)化(hua)前(qian)的(de)抗(kang)張(zhang)強度(du)、伸長率合格的(de)電(dian)(dian)線電(dian)(dian)纜。絕(jue)緣護套(tao)老(lao)(lao)化(hua)前(qian)的(de)抗(kang)張(zhang)強度(du)、伸長率不合格直(zhi)接大大縮短電(dian)(dian)線電(dian)(dian)纜的(de)工作用(yong)壽命，而且(qie)在(zai)施工或在(zai)長時間通電(dian)(dian)且(qie)溫度(du)較高的(de)環境中，極(ji)易出現絕(jue)緣體斷裂，致使帶電(dian)(dian)導體裸(luo)露，發(fa)生能觸電(dian)(dian)式短路危險。其不合格的(de)主要原因是(shi)使用(yong)了再生料生產(chan)，以降低產(chan)品成(cheng)本，二是(shi)不具(ju)備生產(chan)資(zi)格小型企業。

4、導(dao)(dao)體(ti)(ti)(ti)電阻不合格的(de)(de)電線(xian)。導(dao)(dao)體(ti)(ti)(ti)電阻主要是考核電線(xian)電纜(lan)(lan)的(de)(de)導(dao)(dao)體(ti)(ti)(ti)材(cai)料以及截(jie)面是否符(fu)合的(de)(de)重要指標(biao)。當導(dao)(dao)體(ti)(ti)(ti)電阻超標(biao)時，就(jiu)增大了電流在(zai)(zai)線(xian)路上通(tong)過時的(de)(de)損(sun)耗，加劇了電線(xian)電纜(lan)(lan)的(de)(de)發熱。導(dao)(dao)體(ti)(ti)(ti)電阻不合格的(de)(de)原(yuan)(yuan)因，主要進企業為(wei)了降低(di)成本(ben)，將占(zhan)原(yuan)(yuan)材(cai)料成本(ben)80%的(de)(de)銅(tong)材(cai)縮水(shui)，要么(me)降低(di)導(dao)(dao)體(ti)(ti)(ti)的(de)(de)截(jie)面積，要么(me)使用(yong)含雜質過高的(de)(de)再生(sheng)銅(tong)，這樣(yang)致使電線(xian)電纜(lan)(lan)的(de)(de)導(dao)(dao)體(ti)(ti)(ti)電阻嚴(yan)重超標(biao)，在(zai)(zai)使用(yong)過程(cheng)中除(chu)易引(yin)發火災，還會加速包(bao)覆在(zai)(zai)電線(xian)外的(de)(de)絕緣層(ceng)的(de)(de)老化。

在購買電(dian)線電(dian)纜的過程中，消費者應注意以(yi)下(xia)幾(ji)個事

第(di)一、要觀(guan)察電線的(de)(de)外觀(guan)。合格(ge)產品的(de)(de)絕緣（護套）層柔軟、有韌性和伸縮性、表面層緊密(mi)、光滑、無(wu)粗糙感。如(ru)果包裹(guo)電線的(de)(de)塑料很容易被剝去，則存在塑料強度不夠的(de)(de)問題。

第(di)二、要看電(dian)線的截面。合格產品的銅芯或鋁(lv)芯表(biao)面應該(gai)具有金(jin)屬光(guang)澤，表(biao)面發黑的銅或表(biao)面發白的鋁(lv)說明已被氧化。

第三、在(zai)購買電線時應注意查看質量(liang)(liang)合(he)格證書(shu)。如果電線的質量(liang)(liang)合(he)格，那么其(qi)電線質量(liang)(liang)應該也(ye)受過檢驗(yan)，不會有(you)太大的問題(ti)。

沈陽凱鵬(peng)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)制(zhi)造(zao)有限公(gong)(gong)(gong)司(si)隸屬凱鵬(peng)集(ji)團下(xia)屬子公(gong)(gong)(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)研發、生產制(zhi)造(zao)，是(shi)全(quan)國頗具實力(li)的沈陽電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠(chang)家，主營產品：電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、橡套電(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(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(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，以(yi)及(ji)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)代加工。小編(bian)每天會在公(gong)(gong)(gong)司(si)官網發布(bu)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)價格表，及(ji)時更新(xin)銅價以(yi)及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠(chang)報價信息。更多有關電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)信息可點擊公(gong)(gong)(gong)司(si)官網szbowen.cn