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不合格電(dian)線(xian)電(dian)纜(lan)的危害

電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜是用于(yu)傳輸(shu)電(dian)(dian)(dian)力(li)、傳輸(shu)信息和(he)實現(xian)電(dian)(dian)(dian)磁能量轉(zhuan)換的(de)一大類電(dian)(dian)(dian)工產(chan)(chan)品(pin)。在抽查過程中，發現(xian)了大量的(de)不(bu)合(he)格產(chan)(chan)品(pin)，這些劣質產(chan)(chan)品(pin)給(gei)電(dian)(dian)(dian)力(li)系統(tong)正常運行埋下(xia)諸(zhu)多隱(yin)患。

1、標(biao)志不合格的電線電纜。標(biao)志是電線電纜使用識別產品基(ji)本信息的主要途徑，根據標(biao)準規定標(biao)志的主要內容是：產品型號、規格、標(biao)準號、廠名、產地等在一定的標(biao)示間(jian)距內，當標(biao)志不合格時，會造(zao)成施工人員識別錯誤(wu)，嚴重時會引發電氣事故。

2、結構(gou)尺(chi)寸(cun)不合格(ge)的(de)(de)電(dian)線(xian)電(dian)纜(lan)(lan)(lan)。結構(gou)尺(chi)寸(cun)的(de)(de)主要(yao)問題是護(hu)套厚度，絕緣厚度，當電(dian)纜(lan)(lan)(lan)的(de)(de)護(hu)套和絕緣厚度不達標(biao)時，致(zhi)使電(dian)線(xian)電(dian)纜(lan)(lan)(lan)耐電(dian)氣強度會嚴重(zhong)降低，導(dao)(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)(lan)(lan)的(de)(de)使用(yong)(yong)壽命(ming)縮短，嚴重(zhong)時可導(dao)(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)(lan)(lan)被擊穿，絕緣（護(hu)套）層起不到正(zheng)常保護(hu)作(zuo)用(yong)(yong)，從而發生電(dian)氣短路和火(huo)災等現象。

3、護(hu)套式(shi)絕緣(yuan)老(lao)(lao)化前(qian)的(de)(de)抗張(zhang)強度、伸(shen)長率合格(ge)的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)。絕緣(yuan)護(hu)套老(lao)(lao)化前(qian)的(de)(de)抗張(zhang)強度、伸(shen)長率不合格(ge)直(zhi)接大大縮短電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)工作用壽(shou)命，而且在施工或(huo)在長時間通電(dian)(dian)且溫(wen)度較高的(de)(de)環(huan)境中，極易出現(xian)絕緣(yuan)體斷裂，致使帶電(dian)(dian)導體裸(luo)露，發(fa)生(sheng)能(neng)觸電(dian)(dian)式(shi)短路(lu)危險(xian)。其不合格(ge)的(de)(de)主要原因是使用了(le)再生(sheng)料生(sheng)產(chan)，以降低產(chan)品成本，二是不具備生(sheng)產(chan)資格(ge)小型企業。

4、導體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)不(bu)合格(ge)的(de)(de)電(dian)(dian)(dian)(dian)線(xian)(xian)。導體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)主要是考核(he)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)導體(ti)(ti)材料(liao)以及截面(mian)是否符合的(de)(de)重要指(zhi)標(biao)。當導體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)超(chao)標(biao)時，就增大了(le)(le)電(dian)(dian)(dian)(dian)流在(zai)線(xian)(xian)路(lu)上通過時的(de)(de)損耗，加(jia)劇了(le)(le)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)發(fa)熱。導體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)不(bu)合格(ge)的(de)(de)原因，主要進企業為了(le)(le)降低成本，將占原材料(liao)成本80%的(de)(de)銅(tong)材縮水(shui)，要么降低導體(ti)(ti)的(de)(de)截面(mian)積，要么使用含雜質過高的(de)(de)再生銅(tong)，這樣(yang)致使電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)導體(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)嚴重超(chao)標(biao)，在(zai)使用過程中除(chu)易引發(fa)火(huo)災(zai)，還會加(jia)速包覆在(zai)電(dian)(dian)(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電線(xian)電纜的(de)過程中，消費者應注意以下幾個(ge)事

第(di)一、要觀察電(dian)線的外觀。合(he)格產(chan)品的絕緣（護套(tao)）層柔(rou)軟、有(you)韌性(xing)和伸(shen)縮性(xing)、表面(mian)層緊密(mi)、光滑、無粗糙(cao)感。如果包裹電(dian)線的塑(su)料(liao)很容易被剝去，則存在塑(su)料(liao)強(qiang)度(du)不夠的問題。

第二、要看電線的截面(mian)。合格產品的銅芯或(huo)鋁芯表面(mian)應該具(ju)有金(jin)屬光澤，表面(mian)發黑的銅或(huo)表面(mian)發白(bai)的鋁說(shuo)明已被(bei)氧(yang)化。

第(di)三、在購(gou)買(mai)電(dian)(dian)線(xian)時應(ying)(ying)注意查看質量(liang)(liang)合格(ge)證(zheng)書(shu)。如果電(dian)(dian)線(xian)的質量(liang)(liang)合格(ge)，那么其電(dian)(dian)線(xian)質量(liang)(liang)應(ying)(ying)該也受過檢驗(yan)，不會有太大(da)的問題(ti)。

沈陽凱鵬電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造有限公(gong)司(si)(si)隸屬凱鵬集(ji)團(tuan)下屬子公(gong)司(si)(si)，專門從事電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)研發、生產制(zhi)造，是全國頗具實力(li)的沈陽電(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)家(jia)，主(zhu)營(ying)產品：電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)子計(ji)算機電(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)等，以及(ji)(ji)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)代加(jia)工。小編每(mei)天會在公(gong)司(si)(si)官網發布電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表(biao)，及(ji)(ji)時更(geng)新銅價(jia)以及(ji)(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價(jia)信(xin)息(xi)。更(geng)多有關電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)信(xin)息(xi)可點擊公(gong)司(si)(si)官網szbowen.cn