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不合格電線電纜的(de)危害

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜是用于傳輸電(dian)(dian)(dian)力、傳輸信息和實現電(dian)(dian)(dian)磁能量(liang)轉換的一大類電(dian)(dian)(dian)工產品(pin)(pin)。在(zai)抽(chou)查過程中(zhong)，發現了大量(liang)的不(bu)合格產品(pin)(pin)，這些劣質產品(pin)(pin)給電(dian)(dian)(dian)力系統正(zheng)常運(yun)行(xing)埋下諸多(duo)隱患。

1、標(biao)(biao)志(zhi)不合格的(de)電線電纜。標(biao)(biao)志(zhi)是電線電纜使用識(shi)別產品(pin)基本(ben)信息的(de)主(zhu)要(yao)途徑，根據標(biao)(biao)準規(gui)定標(biao)(biao)志(zhi)的(de)主(zhu)要(yao)內(nei)容(rong)是：產品(pin)型號、規(gui)格、標(biao)(biao)準號、廠名、產地等在一定的(de)標(biao)(biao)示間(jian)距內(nei)，當標(biao)(biao)志(zhi)不合格時，會造(zao)成施工人員識(shi)別錯(cuo)誤(wu)，嚴重(zhong)時會引發電氣(qi)事故。

2、結構(gou)(gou)尺寸(cun)不合(he)格(ge)的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)。結構(gou)(gou)尺寸(cun)的主(zhu)要問題是護套(tao)厚(hou)度(du)，絕(jue)緣厚(hou)度(du)，當電(dian)(dian)(dian)纜(lan)的護套(tao)和絕(jue)緣厚(hou)度(du)不達標時，致使(shi)(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)氣強(qiang)度(du)會嚴(yan)重降低(di)，導(dao)(dao)致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的使(shi)(shi)用壽命(ming)縮短，嚴(yan)重時可導(dao)(dao)致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)被(bei)擊穿，絕(jue)緣（護套(tao)）層起不到正常保護作用，從而(er)發生(sheng)電(dian)(dian)(dian)氣短路和火災等現象(xiang)。

3、護套(tao)式絕緣老化(hua)前(qian)的(de)(de)抗張強度、伸長率(lv)合格的(de)(de)電(dian)(dian)線電(dian)(dian)纜。絕緣護套(tao)老化(hua)前(qian)的(de)(de)抗張強度、伸長率(lv)不(bu)(bu)合格直(zhi)接大(da)大(da)縮短(duan)電(dian)(dian)線電(dian)(dian)纜的(de)(de)工作用壽命，而且在(zai)(zai)施工或在(zai)(zai)長時(shi)間(jian)通(tong)電(dian)(dian)且溫度較高(gao)的(de)(de)環境(jing)中(zhong)，極(ji)易出現絕緣體斷裂(lie)，致使帶電(dian)(dian)導體裸露，發生(sheng)能觸電(dian)(dian)式短(duan)路危險。其不(bu)(bu)合格的(de)(de)主要原(yuan)因是使用了再生(sheng)料生(sheng)產，以降(jiang)低產品成本，二是不(bu)(bu)具備生(sheng)產資格小(xiao)型企業。

4、導(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻不合(he)格(ge)的電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)。導(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻主要(yao)(yao)(yao)是考核電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)的導(dao)體(ti)材料以及截面(mian)是否符合(he)的重(zhong)要(yao)(yao)(yao)指標(biao)。當導(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻超標(biao)時(shi)，就增大(da)了電(dian)(dian)(dian)(dian)(dian)流在(zai)線(xian)(xian)(xian)路上通過時(shi)的損(sun)耗(hao)，加(jia)劇(ju)了電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)的發(fa)熱。導(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻不合(he)格(ge)的原因，主要(yao)(yao)(yao)進(jin)企(qi)業為了降(jiang)低(di)成(cheng)本(ben)，將占原材料成(cheng)本(ben)80%的銅(tong)材縮水，要(yao)(yao)(yao)么降(jiang)低(di)導(dao)體(ti)的截面(mian)積，要(yao)(yao)(yao)么使用含(han)雜質(zhi)過高的再生銅(tong)，這樣致使電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)的導(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻嚴重(zhong)超標(biao)，在(zai)使用過程中除(chu)易(yi)引發(fa)火災，還會加(jia)速包覆(fu)在(zai)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)外的絕緣(yuan)層(ceng)的老(lao)化(hua)。

在購買電(dian)線電(dian)纜的過程(cheng)中，消費者應注意(yi)以下幾(ji)個事

第一、要觀(guan)察電線(xian)的外觀(guan)。合格(ge)產品的絕(jue)緣（護套）層柔軟、有韌(ren)性(xing)和伸(shen)縮性(xing)、表(biao)面層緊密、光滑(hua)、無粗(cu)糙感。如果(guo)包(bao)裹電線(xian)的塑料(liao)很容易被剝去，則存(cun)在(zai)塑料(liao)強度不夠的問題。

第二、要看電線的(de)截面(mian)。合格產品的(de)銅(tong)芯(xin)或鋁(lv)芯(xin)表面(mian)應該具有(you)金屬光(guang)澤，表面(mian)發黑的(de)銅(tong)或表面(mian)發白的(de)鋁(lv)說明已被氧化。

第(di)三、在(zai)購買電(dian)線時應注意(yi)查看質(zhi)(zhi)量(liang)合格證書。如果電(dian)線的(de)質(zhi)(zhi)量(liang)合格，那么其電(dian)線質(zhi)(zhi)量(liang)應該也(ye)受過檢驗，不會有(you)太大的(de)問題(ti)。

沈(shen)(shen)陽凱鵬電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)制造有(you)(you)限公(gong)司(si)隸屬(shu)凱鵬集團下屬(shu)子公(gong)司(si)，專門從事電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)研發、生產制造，是(shi)全國(guo)頗具實力的(de)沈(shen)(shen)陽電(dian)(dian)纜(lan)(lan)廠(chang)(chang)家，主(zhu)營產品：電(dian)(dian)力電(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)纜(lan)(lan)、橡(xiang)套(tao)電(dian)(dian)纜(lan)(lan)、電(dian)(dian)氣裝(zhuang)備用電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)、電(dian)(dian)子計算機電(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)代加工。小編每天(tian)會(hui)在公(gong)司(si)官網發布電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)價(jia)(jia)格表，及時(shi)更新銅(tong)價(jia)(jia)以及電(dian)(dian)纜(lan)(lan)廠(chang)(chang)報價(jia)(jia)信息。更多有(you)(you)關電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)信息可點擊公(gong)司(si)官網szbowen.cn