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不合格電線電纜的危(wei)害

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)是用于傳(chuan)輸電(dian)(dian)(dian)力、傳(chuan)輸信(xin)息和實現電(dian)(dian)(dian)磁能(neng)量(liang)轉換的一大類電(dian)(dian)(dian)工產品。在抽查過程中，發現了大量(liang)的不合格產品，這(zhe)些劣質產品給電(dian)(dian)(dian)力系統正常運(yun)行埋下諸多隱患。

1、標(biao)(biao)(biao)(biao)志(zhi)不(bu)合(he)格(ge)的(de)電(dian)線(xian)電(dian)纜。標(biao)(biao)(biao)(biao)志(zhi)是電(dian)線(xian)電(dian)纜使用識別產品基本信息(xi)的(de)主要(yao)途徑，根據標(biao)(biao)(biao)(biao)準規(gui)定標(biao)(biao)(biao)(biao)志(zhi)的(de)主要(yao)內容(rong)是：產品型號(hao)、規(gui)格(ge)、標(biao)(biao)(biao)(biao)準號(hao)、廠(chang)名(ming)、產地等在一(yi)定的(de)標(biao)(biao)(biao)(biao)示間距內，當標(biao)(biao)(biao)(biao)志(zhi)不(bu)合(he)格(ge)時，會造成施工人員識別錯誤，嚴重時會引發電(dian)氣事故(gu)。

2、結構(gou)(gou)尺寸不合格的(de)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)。結構(gou)(gou)尺寸的(de)主要問題是(shi)護(hu)套(tao)厚度(du)，絕(jue)緣厚度(du)，當電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)護(hu)套(tao)和(he)絕(jue)緣厚度(du)不達標(biao)時，致使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)(dian)氣(qi)強度(du)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(duan)，嚴重時可(ke)導致電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)被擊穿，絕(jue)緣（護(hu)套(tao)）層起不到正常保護(hu)作用，從(cong)而發(fa)生電(dian)(dian)(dian)(dian)氣(qi)短(duan)路和(he)火災等現象。

3、護套(tao)式絕(jue)緣老(lao)化前的抗張(zhang)強度(du)、伸長(chang)率合格(ge)的電(dian)線電(dian)纜(lan)。絕(jue)緣護套(tao)老(lao)化前的抗張(zhang)強度(du)、伸長(chang)率不合格(ge)直接大(da)(da)大(da)(da)縮短電(dian)線電(dian)纜(lan)的工(gong)作(zuo)用壽命，而且在(zai)施工(gong)或在(zai)長(chang)時間通電(dian)且溫度(du)較高(gao)的環(huan)境中，極易出(chu)現絕(jue)緣體斷裂，致(zhi)使(shi)帶電(dian)導(dao)體裸露，發生能觸電(dian)式短路危險。其不合格(ge)的主要原因是使(shi)用了再生料(liao)生產(chan)，以降低產(chan)品成本，二是不具備生產(chan)資格(ge)小型企業。

4、導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不(bu)(bu)合格的(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻主(zhu)要(yao)(yao)是考核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)導(dao)(dao)體(ti)(ti)材(cai)料以及截面是否符合的(de)重要(yao)(yao)指標。當導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻超(chao)標時，就增(zeng)大了(le)(le)(le)電(dian)(dian)(dian)流在線(xian)路上通過(guo)(guo)時的(de)損耗，加劇(ju)了(le)(le)(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)發(fa)(fa)熱(re)。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不(bu)(bu)合格的(de)原因，主(zhu)要(yao)(yao)進(jin)企業為了(le)(le)(le)降低成本，將占原材(cai)料成本80%的(de)銅(tong)材(cai)縮水，要(yao)(yao)么降低導(dao)(dao)體(ti)(ti)的(de)截面積(ji)，要(yao)(yao)么使用(yong)含雜質過(guo)(guo)高的(de)再(zai)生(sheng)銅(tong)，這樣(yang)致使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻嚴重超(chao)標，在使用(yong)過(guo)(guo)程中除易引發(fa)(fa)火災，還會加速包覆在電(dian)(dian)(dian)線(xian)外(wai)的(de)絕緣(yuan)層的(de)老化。

在(zai)購買電(dian)線電(dian)纜(lan)的過程中，消費者應注意以下幾個事

第一(yi)、要觀(guan)察電(dian)線的外觀(guan)。合格產品的絕(jue)緣(yuan)（護(hu)套）層(ceng)柔(rou)軟、有(you)韌性和伸縮性、表面層(ceng)緊密、光(guang)滑、無(wu)粗糙感。如果(guo)包裹電(dian)線的塑(su)料很(hen)容易被剝去，則存在塑(su)料強(qiang)度不夠的問題。

第二(er)、要看(kan)電線的截面(mian)(mian)。合格產品的銅芯(xin)或(huo)(huo)鋁芯(xin)表面(mian)(mian)應該具有(you)金屬光澤，表面(mian)(mian)發黑的銅或(huo)(huo)表面(mian)(mian)發白(bai)的鋁說明已被氧(yang)化。

第三、在購買電線時應注(zhu)意查(cha)看質(zhi)(zhi)量合格(ge)(ge)證書(shu)。如(ru)果電線的(de)質(zhi)(zhi)量合格(ge)(ge)，那么(me)其電線質(zhi)(zhi)量應該也(ye)受過檢驗，不會有(you)太大的(de)問題。

沈(shen)陽凱(kai)鵬電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)制(zhi)造有限公(gong)司隸屬(shu)凱(kai)鵬集團下屬(shu)子(zi)公(gong)司，專門從事電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)研發、生產制(zhi)造，是全國頗具實力的沈(shen)陽電(dian)(dian)(dian)纜(lan)(lan)廠家，主營產品(pin)：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)子(zi)計(ji)算機電(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)等，以及(ji)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)代加(jia)工。小(xiao)編每天會(hui)在(zai)公(gong)司官網發布電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)價格表(biao)，及(ji)時更新銅價以及(ji)電(dian)(dian)(dian)纜(lan)(lan)廠報(bao)價信息(xi)。更多有關電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)信息(xi)可點擊公(gong)司官網szbowen.cn