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不合格(ge)電線電纜的危害(hai)

電線電纜是用于傳輸(shu)電力、傳輸(shu)信息和實現(xian)電磁能量(liang)轉換的一大類(lei)電工產(chan)品(pin)。在(zai)抽查(cha)過程中，發(fa)現(xian)了大量(liang)的不合格產(chan)品(pin)，這些(xie)劣質產(chan)品(pin)給電力系統(tong)正常(chang)運行(xing)埋下諸多隱患。

1、標(biao)志(zhi)不(bu)合格(ge)的(de)電(dian)線電(dian)纜(lan)。標(biao)志(zhi)是(shi)電(dian)線電(dian)纜(lan)使(shi)用識別(bie)產(chan)品(pin)基本信息的(de)主要途徑(jing)，根據(ju)標(biao)準(zhun)規(gui)定標(biao)志(zhi)的(de)主要內(nei)容(rong)是(shi)：產(chan)品(pin)型號、規(gui)格(ge)、標(biao)準(zhun)號、廠名、產(chan)地等在一定的(de)標(biao)示(shi)間距內(nei)，當標(biao)志(zhi)不(bu)合格(ge)時，會造成施工(gong)人員(yuan)識別(bie)錯誤，嚴重時會引發電(dian)氣(qi)事故(gu)。

2、結構尺寸(cun)不(bu)合格的(de)(de)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜。結構尺寸(cun)的(de)(de)主要問題(ti)是(shi)護(hu)套厚度，絕緣厚度，當電(dian)(dian)(dian)纜的(de)(de)護(hu)套和絕緣厚度不(bu)達標時(shi)，致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜耐電(dian)(dian)(dian)氣(qi)強度會嚴重降(jiang)低，導致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)使(shi)用壽命縮短，嚴重時(shi)可導致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜被擊穿(chuan)，絕緣（護(hu)套）層(ceng)起(qi)不(bu)到正常保護(hu)作用，從而發(fa)生電(dian)(dian)(dian)氣(qi)短路和火災等現象。

3、護套(tao)式絕緣老化(hua)前(qian)的(de)(de)抗張(zhang)強度、伸(shen)長(chang)率合格的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)。絕緣護套(tao)老化(hua)前(qian)的(de)(de)抗張(zhang)強度、伸(shen)長(chang)率不(bu)合格直接大(da)大(da)縮短電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)工(gong)作用壽命，而且(qie)在(zai)施工(gong)或在(zai)長(chang)時間(jian)通電(dian)(dian)且(qie)溫度較高的(de)(de)環(huan)境中(zhong)，極易出現絕緣體(ti)斷裂，致(zhi)使帶電(dian)(dian)導體(ti)裸露，發(fa)生(sheng)能觸電(dian)(dian)式短路危險。其不(bu)合格的(de)(de)主要原因是使用了(le)再生(sheng)料(liao)生(sheng)產(chan)，以降低(di)產(chan)品成本(ben)，二(er)是不(bu)具(ju)備(bei)生(sheng)產(chan)資格小(xiao)型企(qi)業(ye)。

4、導體(ti)(ti)電(dian)(dian)阻不(bu)合(he)格的(de)(de)(de)(de)(de)電(dian)(dian)線(xian)。導體(ti)(ti)電(dian)(dian)阻主要是考核電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)(de)(de)導體(ti)(ti)材料以及截面是否(fou)符合(he)的(de)(de)(de)(de)(de)重(zhong)要指標。當導體(ti)(ti)電(dian)(dian)阻超(chao)標時，就增大了(le)電(dian)(dian)流(liu)在(zai)線(xian)路上(shang)通過時的(de)(de)(de)(de)(de)損(sun)耗，加(jia)劇(ju)了(le)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)(de)(de)發熱。導體(ti)(ti)電(dian)(dian)阻不(bu)合(he)格的(de)(de)(de)(de)(de)原因，主要進企業為了(le)降低成本，將占原材料成本80%的(de)(de)(de)(de)(de)銅(tong)材縮(suo)水，要么降低導體(ti)(ti)的(de)(de)(de)(de)(de)截面積，要么使(shi)用含(han)雜質過高的(de)(de)(de)(de)(de)再生銅(tong)，這樣致使(shi)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)(de)(de)導體(ti)(ti)電(dian)(dian)阻嚴重(zhong)超(chao)標，在(zai)使(shi)用過程中(zhong)除易引發火災，還會加(jia)速包覆在(zai)電(dian)(dian)線(xian)外的(de)(de)(de)(de)(de)絕(jue)緣層的(de)(de)(de)(de)(de)老化(hua)。

在購買電線電纜的過(guo)程中，消費(fei)者應注意(yi)以(yi)下幾個事

第(di)一、要觀察(cha)電(dian)線(xian)的外觀。合格產(chan)品的絕緣（護套）層(ceng)柔軟、有韌性(xing)和伸縮性(xing)、表面層(ceng)緊密、光滑、無粗糙(cao)感。如果(guo)包(bao)裹電(dian)線(xian)的塑料很容易被剝去，則存在塑料強度不夠(gou)的問題(ti)。

第(di)二、要看電(dian)線(xian)的截面(mian)(mian)。合格產(chan)品的銅(tong)芯(xin)或鋁芯(xin)表面(mian)(mian)應該具(ju)有(you)金屬光澤，表面(mian)(mian)發(fa)(fa)黑的銅(tong)或表面(mian)(mian)發(fa)(fa)白(bai)的鋁說(shuo)明(ming)已被(bei)氧化(hua)。

第三、在購買電(dian)線時(shi)應注(zhu)意查看質量合格證書。如果電(dian)線的質量合格，那么(me)其電(dian)線質量應該也受(shou)過檢驗，不會有太(tai)大的問題。

沈(shen)陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制造有限公司隸屬(shu)凱(kai)鵬(peng)集(ji)團(tuan)下屬(shu)子(zi)公司，專(zhuan)門從事電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發、生產(chan)制造，是(shi)全國頗具實(shi)力的沈(shen)陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等(deng)，以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小(xiao)編(bian)每天會在公司官網發布(bu)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價格表，及時更(geng)新銅價以(yi)及電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價信息。更(geng)多(duo)有關電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息可點(dian)擊公司官網szbowen.cn