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不(bu)合格電線電纜的危害

電線電纜是用于(yu)傳(chuan)輸電力(li)、傳(chuan)輸信息(xi)和實現電磁能量轉換的一大類電工(gong)產品。在抽查過程中，發現了大量的不合(he)格產品，這些(xie)劣質產品給電力(li)系統正常運行埋下(xia)諸多隱患。

1、標(biao)志(zhi)(zhi)不合(he)格(ge)的電(dian)線(xian)電(dian)纜(lan)。標(biao)志(zhi)(zhi)是電(dian)線(xian)電(dian)纜(lan)使用(yong)識別產品基本信(xin)息(xi)的主要途徑，根據標(biao)準規(gui)定標(biao)志(zhi)(zhi)的主要內容是：產品型(xing)號、規(gui)格(ge)、標(biao)準號、廠名、產地等在一(yi)定的標(biao)示間距內，當標(biao)志(zhi)(zhi)不合(he)格(ge)時，會(hui)造成施工人員識別錯(cuo)誤(wu)，嚴重時會(hui)引發電(dian)氣事故。

2、結(jie)構(gou)尺寸不合格的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)。結(jie)構(gou)尺寸的(de)主(zhu)要問題(ti)是護套(tao)厚(hou)(hou)度(du)(du)，絕緣厚(hou)(hou)度(du)(du)，當電(dian)(dian)纜(lan)的(de)護套(tao)和(he)絕緣厚(hou)(hou)度(du)(du)不達標時，致(zhi)使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)耐(nai)電(dian)(dian)氣強(qiang)度(du)(du)會嚴(yan)重降低，導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)的(de)使用壽命縮短(duan)，嚴(yan)重時可導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)被擊穿，絕緣（護套(tao)）層起(qi)不到正常保護作用，從而發生電(dian)(dian)氣短(duan)路和(he)火災(zai)等現象(xiang)。

3、護套式(shi)絕(jue)緣老化前的(de)抗張(zhang)強(qiang)(qiang)度、伸(shen)長(chang)率(lv)合(he)格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜。絕(jue)緣護套老化前的(de)抗張(zhang)強(qiang)(qiang)度、伸(shen)長(chang)率(lv)不(bu)合(he)格(ge)直接(jie)大大縮短(duan)電(dian)(dian)線電(dian)(dian)纜的(de)工(gong)作用壽命，而且在(zai)施(shi)工(gong)或在(zai)長(chang)時間通電(dian)(dian)且溫度較高(gao)的(de)環境中，極易出現絕(jue)緣體斷裂，致使帶電(dian)(dian)導體裸露，發生能(neng)觸電(dian)(dian)式(shi)短(duan)路(lu)危險。其(qi)不(bu)合(he)格(ge)的(de)主(zhu)要原(yuan)因(yin)是(shi)使用了再生料生產，以降低(di)產品成本(ben)，二(er)是(shi)不(bu)具(ju)備(bei)生產資格(ge)小(xiao)型企業(ye)。

4、導體(ti)電(dian)(dian)(dian)(dian)阻不(bu)合(he)格(ge)的(de)電(dian)(dian)(dian)(dian)線(xian)。導體(ti)電(dian)(dian)(dian)(dian)阻主要是考核電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)導體(ti)材(cai)料(liao)以及截(jie)面是否(fou)符合(he)的(de)重要指標。當導體(ti)電(dian)(dian)(dian)(dian)阻超標時(shi)(shi)，就增大了電(dian)(dian)(dian)(dian)流在線(xian)路上通過時(shi)(shi)的(de)損耗，加劇了電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)發熱。導體(ti)電(dian)(dian)(dian)(dian)阻不(bu)合(he)格(ge)的(de)原(yuan)因(yin)，主要進企業(ye)為(wei)了降低(di)成本，將占原(yuan)材(cai)料(liao)成本80%的(de)銅(tong)材(cai)縮水，要么(me)降低(di)導體(ti)的(de)截(jie)面積，要么(me)使(shi)(shi)用含雜質過高的(de)再生銅(tong)，這(zhe)樣致使(shi)(shi)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)導體(ti)電(dian)(dian)(dian)(dian)阻嚴重超標，在使(shi)(shi)用過程中(zhong)除(chu)易引發火災，還會加速包覆(fu)在電(dian)(dian)(dian)(dian)線(xian)外的(de)絕緣(yuan)層(ceng)的(de)老化。

在購(gou)買電線電纜的(de)過程中，消(xiao)費者(zhe)應注意以下幾個事

第一、要觀察電線的(de)外觀。合(he)格產(chan)品的(de)絕緣（護(hu)套）層(ceng)柔軟、有(you)韌(ren)性和伸縮性、表面(mian)層(ceng)緊密、光(guang)滑、無粗糙感。如果包裹電線的(de)塑料很容易被(bei)剝(bo)去(qu)，則存在塑料強度不夠(gou)的(de)問題。

第二(er)、要看(kan)電線的截面(mian)。合格(ge)產品的銅(tong)芯(xin)或鋁(lv)芯(xin)表(biao)面(mian)應該具有(you)金(jin)屬光澤(ze)，表(biao)面(mian)發(fa)黑的銅(tong)或表(biao)面(mian)發(fa)白的鋁(lv)說(shuo)明已被氧化。

第(di)三、在(zai)購買電(dian)(dian)線(xian)時(shi)應注意(yi)查看質量合格證(zheng)書。如(ru)果(guo)電(dian)(dian)線(xian)的質量合格，那(nei)么其(qi)電(dian)(dian)線(xian)質量應該也受過(guo)檢驗，不會有(you)太(tai)大的問題。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造有限公(gong)(gong)司隸(li)屬凱鵬集團下(xia)屬子公(gong)(gong)司，專(zhuan)門從事電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發、生產(chan)制(zhi)造，是全(quan)國(guo)頗具實力的(de)沈陽(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)家，主營產(chan)品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等(deng)，以及電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每天會在公(gong)(gong)司官網(wang)發布電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及時更(geng)新銅價(jia)以及電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價(jia)信息(xi)(xi)。更(geng)多(duo)有關電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息(xi)(xi)可點擊公(gong)(gong)司官網(wang)szbowen.cn