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不合格(ge)電線電纜的危害

電(dian)線電(dian)纜是用于傳輸(shu)(shu)電(dian)力(li)、傳輸(shu)(shu)信息和實現電(dian)磁能量轉換的一大(da)類電(dian)工產(chan)(chan)品。在(zai)抽(chou)查過程中(zhong)，發現了大(da)量的不合格產(chan)(chan)品，這(zhe)些劣質產(chan)(chan)品給電(dian)力(li)系統正常運行埋(mai)下諸多隱患。

1、標(biao)志(zhi)不合格(ge)(ge)的(de)(de)電(dian)線電(dian)纜。標(biao)志(zhi)是(shi)電(dian)線電(dian)纜使用識別(bie)產(chan)品基本信息的(de)(de)主(zhu)要途徑(jing)，根據標(biao)準(zhun)規定標(biao)志(zhi)的(de)(de)主(zhu)要內(nei)(nei)容是(shi)：產(chan)品型號、規格(ge)(ge)、標(biao)準(zhun)號、廠名、產(chan)地等在一定的(de)(de)標(biao)示間距(ju)內(nei)(nei)，當標(biao)志(zhi)不合格(ge)(ge)時(shi)，會(hui)造成(cheng)施工人員識別(bie)錯誤，嚴重時(shi)會(hui)引發電(dian)氣事(shi)故(gu)。

2、結(jie)構尺寸不(bu)合格的(de)(de)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)。結(jie)構尺寸的(de)(de)主要(yao)問題是護(hu)套厚度，絕緣(yuan)厚度，當電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)護(hu)套和(he)絕緣(yuan)厚度不(bu)達標時，致(zhi)使(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)(dian)(dian)氣(qi)強(qiang)度會嚴重(zhong)降低，導(dao)致(zhi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)使(shi)用(yong)壽(shou)命縮短(duan)，嚴重(zhong)時可導(dao)致(zhi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)被擊穿，絕緣(yuan)（護(hu)套）層起不(bu)到正常保護(hu)作用(yong)，從而發生(sheng)電(dian)(dian)(dian)(dian)氣(qi)短(duan)路(lu)和(he)火災(zai)等現象。

3、護(hu)套(tao)式絕(jue)緣老化(hua)前(qian)的(de)(de)抗張強度、伸長率合(he)格(ge)(ge)的(de)(de)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜。絕(jue)緣護(hu)套(tao)老化(hua)前(qian)的(de)(de)抗張強度、伸長率不合(he)格(ge)(ge)直(zhi)接(jie)大大縮(suo)短(duan)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)工(gong)作(zuo)用(yong)壽(shou)命(ming)，而(er)且(qie)在施(shi)工(gong)或(huo)在長時間通電(dian)(dian)(dian)(dian)且(qie)溫(wen)度較高的(de)(de)環境中，極易出現絕(jue)緣體(ti)斷裂(lie)，致(zhi)使帶電(dian)(dian)(dian)(dian)導體(ti)裸露，發生能觸電(dian)(dian)(dian)(dian)式短(duan)路(lu)危(wei)險。其不合(he)格(ge)(ge)的(de)(de)主要原因是(shi)使用(yong)了再(zai)生料(liao)生產，以降低產品成本，二是(shi)不具備生產資格(ge)(ge)小型企業。

4、導(dao)體電(dian)(dian)阻(zu)不(bu)合(he)格(ge)(ge)的(de)(de)(de)電(dian)(dian)線(xian)。導(dao)體電(dian)(dian)阻(zu)主要(yao)(yao)(yao)是(shi)考核電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體材(cai)料(liao)以及截面是(shi)否符合(he)的(de)(de)(de)重(zhong)要(yao)(yao)(yao)指標(biao)。當導(dao)體電(dian)(dian)阻(zu)超標(biao)時，就(jiu)增大(da)了電(dian)(dian)流在線(xian)路上通(tong)過時的(de)(de)(de)損耗(hao)，加劇了電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)發熱。導(dao)體電(dian)(dian)阻(zu)不(bu)合(he)格(ge)(ge)的(de)(de)(de)原(yuan)因，主要(yao)(yao)(yao)進企業(ye)為了降(jiang)低成本，將占(zhan)原(yuan)材(cai)料(liao)成本80%的(de)(de)(de)銅(tong)(tong)材(cai)縮水，要(yao)(yao)(yao)么降(jiang)低導(dao)體的(de)(de)(de)截面積，要(yao)(yao)(yao)么使用含雜質過高的(de)(de)(de)再(zai)生銅(tong)(tong)，這樣致使電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體電(dian)(dian)阻(zu)嚴重(zhong)超標(biao)，在使用過程中除(chu)易引發火災(zai)，還會加速包覆在電(dian)(dian)線(xian)外的(de)(de)(de)絕(jue)緣層的(de)(de)(de)老化。

在購買電(dian)線(xian)電(dian)纜的過程中，消費者應注(zhu)意以(yi)下幾個事

第一、要(yao)觀察(cha)電線(xian)的(de)(de)外觀。合格產品的(de)(de)絕緣（護套）層柔軟(ruan)、有(you)韌性(xing)和伸縮(suo)性(xing)、表(biao)面層緊密、光滑、無(wu)粗糙感。如(ru)果包裹(guo)電線(xian)的(de)(de)塑(su)料很容易被剝去，則存(cun)在塑(su)料強度(du)不夠的(de)(de)問題。

第二、要看電線的(de)截面(mian)。合格產(chan)品的(de)銅(tong)芯或(huo)鋁芯表面(mian)應該(gai)具有金屬光澤(ze)，表面(mian)發(fa)黑的(de)銅(tong)或(huo)表面(mian)發(fa)白的(de)鋁說明已被氧化。

第三、在購(gou)買電線時應注意(yi)查看質(zhi)量合格證書(shu)。如果電線的質(zhi)量合格，那么其電線質(zhi)量應該也受過檢驗，不會有太(tai)大的問題。

沈陽凱(kai)鵬電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制(zhi)造有(you)限公(gong)(gong)司(si)隸屬凱(kai)鵬集團下屬子公(gong)(gong)司(si)，專門從事電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發、生產制(zhi)造，是(shi)全國頗具實力的沈陽電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)家，主(zhu)營產品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)氣(qi)裝備(bei)用電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)子計(ji)算機電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等，以(yi)及(ji)(ji)(ji)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加(jia)工。小(xiao)編每天會(hui)在公(gong)(gong)司(si)官(guan)網發布電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價(jia)格表，及(ji)(ji)(ji)時更(geng)新銅(tong)價(jia)以(yi)及(ji)(ji)(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)報價(jia)信(xin)息(xi)。更(geng)多(duo)有(you)關(guan)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信(xin)息(xi)可點(dian)擊公(gong)(gong)司(si)官(guan)網szbowen.cn