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不合格(ge)電線電纜的危害(hai)

電線(xian)電纜是用于傳(chuan)輸電力(li)、傳(chuan)輸信息和實現(xian)電磁能量轉換的一大類(lei)電工產品。在抽查過程中，發現(xian)了大量的不合格產品，這些劣質產品給電力(li)系統(tong)正常(chang)運行埋下諸多隱患。

1、標(biao)(biao)(biao)志(zhi)(zhi)不(bu)合(he)格的(de)電線電纜(lan)(lan)。標(biao)(biao)(biao)志(zhi)(zhi)是電線電纜(lan)(lan)使用識別產(chan)品基本(ben)信息的(de)主要(yao)(yao)途徑，根(gen)據標(biao)(biao)(biao)準規定標(biao)(biao)(biao)志(zhi)(zhi)的(de)主要(yao)(yao)內(nei)容是：產(chan)品型號、規格、標(biao)(biao)(biao)準號、廠名(ming)、產(chan)地(di)等在一定的(de)標(biao)(biao)(biao)示間距內(nei)，當標(biao)(biao)(biao)志(zhi)(zhi)不(bu)合(he)格時，會(hui)造成(cheng)施工(gong)人員識別錯誤，嚴重(zhong)時會(hui)引發電氣事故。

2、結構尺寸不(bu)(bu)合格的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜。結構尺寸的主要問題是護套(tao)厚度，絕緣(yuan)厚度，當電(dian)(dian)(dian)纜的護套(tao)和絕緣(yuan)厚度不(bu)(bu)達標時，致(zhi)使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜耐電(dian)(dian)(dian)氣強(qiang)度會嚴(yan)重(zhong)降低，導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的使用壽命縮(suo)短，嚴(yan)重(zhong)時可導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜被擊穿，絕緣(yuan)（護套(tao)）層起不(bu)(bu)到正(zheng)常保護作用，從(cong)而發生電(dian)(dian)(dian)氣短路(lu)和火災等現象(xiang)。

3、護套式絕緣老化(hua)前的(de)抗張強(qiang)度(du)(du)、伸長率(lv)合(he)格的(de)電(dian)線電(dian)纜(lan)。絕緣護套老化(hua)前的(de)抗張強(qiang)度(du)(du)、伸長率(lv)不(bu)合(he)格直(zhi)接大大縮短(duan)電(dian)線電(dian)纜(lan)的(de)工作用(yong)壽(shou)命，而且在施工或在長時(shi)間通電(dian)且溫度(du)(du)較高的(de)環境中，極易出(chu)現絕緣體斷裂，致使帶(dai)電(dian)導體裸(luo)露(lu)，發生(sheng)(sheng)能觸電(dian)式短(duan)路危險(xian)。其(qi)不(bu)合(he)格的(de)主要(yao)原因是(shi)使用(yong)了再生(sheng)(sheng)料生(sheng)(sheng)產(chan)(chan)，以降低產(chan)(chan)品成本，二是(shi)不(bu)具備生(sheng)(sheng)產(chan)(chan)資格小型企業。

4、導(dao)體(ti)(ti)電(dian)阻不合格(ge)的(de)(de)(de)電(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)阻主要是考(kao)核電(dian)線(xian)(xian)電(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)材料以及截(jie)面是否符(fu)合的(de)(de)(de)重(zhong)要指標(biao)。當導(dao)體(ti)(ti)電(dian)阻超(chao)(chao)標(biao)時(shi)，就增大了電(dian)流(liu)在(zai)線(xian)(xian)路(lu)上通過時(shi)的(de)(de)(de)損(sun)耗，加劇了電(dian)線(xian)(xian)電(dian)纜(lan)的(de)(de)(de)發熱。導(dao)體(ti)(ti)電(dian)阻不合格(ge)的(de)(de)(de)原(yuan)因，主要進企(qi)業(ye)為了降(jiang)低成(cheng)本，將占原(yuan)材料成(cheng)本80%的(de)(de)(de)銅(tong)材縮水(shui)，要么(me)降(jiang)低導(dao)體(ti)(ti)的(de)(de)(de)截(jie)面積，要么(me)使(shi)用含雜質過高的(de)(de)(de)再(zai)生銅(tong)，這樣致使(shi)電(dian)線(xian)(xian)電(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)電(dian)阻嚴重(zhong)超(chao)(chao)標(biao)，在(zai)使(shi)用過程中除易引發火災，還(huan)會加速(su)包覆在(zai)電(dian)線(xian)(xian)外的(de)(de)(de)絕(jue)緣層的(de)(de)(de)老化。

在(zai)購買電(dian)線電(dian)纜的過程中，消(xiao)費者應注意(yi)以下(xia)幾個事

第一、要觀察電(dian)(dian)線的(de)外觀。合格產品的(de)絕(jue)緣(yuan)（護套）層柔軟、有韌性(xing)和伸縮性(xing)、表面層緊密、光滑、無粗糙感。如果(guo)包裹電(dian)(dian)線的(de)塑料很容易(yi)被剝去，則存在塑料強度(du)不夠(gou)的(de)問題。

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

第三、在購買電線(xian)時應注(zhu)意查看質(zhi)量合格(ge)證(zheng)書。如果電線(xian)的質(zhi)量合格(ge)，那么其電線(xian)質(zhi)量應該也受過檢驗，不(bu)會(hui)有(you)太大(da)的問題。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制(zhi)造有限公(gong)司隸屬凱鵬集團下屬子(zi)公(gong)司，專門(men)從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發、生產制(zhi)造，是全(quan)國(guo)頗具實力的沈陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以(yi)(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代(dai)加工。小(xiao)編(bian)每天會在公(gong)司官網(wang)發布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價(jia)格表，及(ji)時(shi)更新銅價(jia)以(yi)(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價(jia)信息。更多有關(guan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息可(ke)點擊公(gong)司官網(wang)szbowen.cn