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不合格電線電纜(lan)的危害

電(dian)(dian)線電(dian)(dian)纜是用于傳輸電(dian)(dian)力(li)、傳輸信息和實現電(dian)(dian)磁能量轉換的一(yi)大類電(dian)(dian)工(gong)產品(pin)。在抽(chou)查過程中，發現了大量的不(bu)合(he)格產品(pin)，這些劣質(zhi)產品(pin)給電(dian)(dian)力(li)系(xi)統(tong)正常運行埋下諸多隱患。

1、標(biao)(biao)志(zhi)(zhi)不(bu)合格的(de)電線(xian)電纜。標(biao)(biao)志(zhi)(zhi)是電線(xian)電纜使用識(shi)別產品(pin)基本信息的(de)主(zhu)要途徑，根據標(biao)(biao)準規定(ding)標(biao)(biao)志(zhi)(zhi)的(de)主(zhu)要內容是：產品(pin)型(xing)號(hao)、規格、標(biao)(biao)準號(hao)、廠名、產地等在一定(ding)的(de)標(biao)(biao)示間距內，當標(biao)(biao)志(zhi)(zhi)不(bu)合格時，會造(zao)成(cheng)施工人員識(shi)別錯誤，嚴(yan)重時會引發電氣事故。

2、結構尺(chi)(chi)寸不合格的(de)(de)電(dian)(dian)線(xian)電(dian)(dian)纜。結構尺(chi)(chi)寸的(de)(de)主(zhu)要(yao)問(wen)題是護(hu)套厚度，絕(jue)緣厚度，當電(dian)(dian)纜的(de)(de)護(hu)套和絕(jue)緣厚度不達標時(shi)(shi)，致使(shi)電(dian)(dian)線(xian)電(dian)(dian)纜耐電(dian)(dian)氣(qi)強度會(hui)嚴重降低，導致電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)使(shi)用(yong)壽命縮(suo)短，嚴重時(shi)(shi)可(ke)導致電(dian)(dian)線(xian)電(dian)(dian)纜被(bei)擊穿，絕(jue)緣（護(hu)套）層起不到(dao)正常保(bao)護(hu)作用(yong)，從而發生(sheng)電(dian)(dian)氣(qi)短路和火災等現象。

3、護(hu)套式絕緣(yuan)老化前的(de)(de)抗張強度(du)(du)、伸(shen)長率合(he)(he)格的(de)(de)電(dian)(dian)線電(dian)(dian)纜。絕緣(yuan)護(hu)套老化前的(de)(de)抗張強度(du)(du)、伸(shen)長率不合(he)(he)格直(zhi)接(jie)大大縮短電(dian)(dian)線電(dian)(dian)纜的(de)(de)工作用(yong)壽命，而且在施工或在長時間通(tong)電(dian)(dian)且溫度(du)(du)較(jiao)高的(de)(de)環境中，極(ji)易(yi)出現絕緣(yuan)體斷裂(lie)，致(zhi)使帶電(dian)(dian)導體裸露，發生(sheng)能觸電(dian)(dian)式短路危險。其不合(he)(he)格的(de)(de)主要(yao)原(yuan)因是使用(yong)了再生(sheng)料生(sheng)產(chan)，以降低產(chan)品(pin)成本，二(er)是不具備生(sheng)產(chan)資格小(xiao)型企(qi)業。

4、導體(ti)電阻(zu)(zu)(zu)不合(he)格(ge)的(de)(de)電線(xian)(xian)(xian)。導體(ti)電阻(zu)(zu)(zu)主(zhu)要(yao)是(shi)考(kao)核(he)電線(xian)(xian)(xian)電纜(lan)(lan)的(de)(de)導體(ti)材(cai)料(liao)以及截(jie)面(mian)是(shi)否符(fu)合(he)的(de)(de)重(zhong)(zhong)要(yao)指(zhi)標(biao)。當導體(ti)電阻(zu)(zu)(zu)超標(biao)時，就(jiu)增大了電流在線(xian)(xian)(xian)路(lu)上通過時的(de)(de)損耗，加劇了電線(xian)(xian)(xian)電纜(lan)(lan)的(de)(de)發(fa)熱(re)。導體(ti)電阻(zu)(zu)(zu)不合(he)格(ge)的(de)(de)原因，主(zhu)要(yao)進企業為了降(jiang)低(di)成本，將占原材(cai)料(liao)成本80%的(de)(de)銅材(cai)縮水，要(yao)么降(jiang)低(di)導體(ti)的(de)(de)截(jie)面(mian)積，要(yao)么使(shi)用(yong)含(han)雜質(zhi)過高的(de)(de)再生銅，這樣致使(shi)電線(xian)(xian)(xian)電纜(lan)(lan)的(de)(de)導體(ti)電阻(zu)(zu)(zu)嚴重(zhong)(zhong)超標(biao)，在使(shi)用(yong)過程中除易引發(fa)火災，還(huan)會加速(su)包(bao)覆在電線(xian)(xian)(xian)外的(de)(de)絕緣層的(de)(de)老(lao)化。

在購(gou)買電(dian)線電(dian)纜的過程中(zhong)，消(xiao)費者(zhe)應注(zhu)意(yi)以(yi)下(xia)幾個(ge)事

第一、要觀(guan)察(cha)電(dian)線的(de)外(wai)觀(guan)。合格產品的(de)絕緣（護套(tao)）層柔軟、有韌性和伸縮(suo)性、表面(mian)層緊(jin)密(mi)、光(guang)滑(hua)、無粗糙(cao)感。如果包裹電(dian)線的(de)塑(su)料很容(rong)易被剝去，則存在塑(su)料強(qiang)度(du)不夠的(de)問題。

第二、要看電(dian)線的截面。合格(ge)產品的銅芯或(huo)鋁(lv)芯表面應該具(ju)有(you)金(jin)屬光(guang)澤(ze)，表面發黑的銅或(huo)表面發白的鋁(lv)說明已被氧化。

第(di)三、在購(gou)買電線時應注意查看(kan)質(zhi)量合格證書。如果(guo)電線的質(zhi)量合格，那(nei)么其電線質(zhi)量應該也(ye)受過檢驗，不(bu)會有太大的問(wen)題。

沈(shen)陽凱鵬電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制造(zao)有限公(gong)(gong)司(si)(si)隸屬凱鵬集團下(xia)屬子公(gong)(gong)司(si)(si)，專門從事(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研(yan)發、生產(chan)制造(zao)，是全國(guo)頗具實力(li)的沈(shen)陽電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)家，主(zhu)營產(chan)品(pin)：電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控制電(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)氣裝備(bei)用電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)子計算(suan)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(deng)，以及(ji)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加工。小(xiao)編每天會在公(gong)(gong)司(si)(si)官(guan)(guan)網發布電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價格表，及(ji)時更新(xin)銅價以及(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)報價信(xin)息(xi)(xi)。更多(duo)有關電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信(xin)息(xi)(xi)可(ke)點擊(ji)公(gong)(gong)司(si)(si)官(guan)(guan)網szbowen.cn