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不合格電線電纜(lan)的(de)危害(hai)

電線電纜是用于傳輸(shu)(shu)電力(li)、傳輸(shu)(shu)信息和實現電磁能量(liang)轉(zhuan)換的一大類(lei)電工產品(pin)。在抽查(cha)過程中，發(fa)現了大量(liang)的不合格產品(pin)，這些(xie)劣質產品(pin)給(gei)電力(li)系統正常(chang)運(yun)行埋下(xia)諸(zhu)多(duo)隱患(huan)。

1、標(biao)志(zhi)不(bu)(bu)合(he)格的(de)(de)電線(xian)電纜(lan)。標(biao)志(zhi)是電線(xian)電纜(lan)使用(yong)識(shi)別產(chan)品(pin)基本信息的(de)(de)主要(yao)途徑，根據(ju)標(biao)準(zhun)規(gui)定(ding)標(biao)志(zhi)的(de)(de)主要(yao)內(nei)容是：產(chan)品(pin)型號、規(gui)格、標(biao)準(zhun)號、廠名、產(chan)地等(deng)在一(yi)定(ding)的(de)(de)標(biao)示間距內(nei)，當(dang)標(biao)志(zhi)不(bu)(bu)合(he)格時(shi)，會(hui)造成施工(gong)人員識(shi)別錯誤，嚴(yan)重時(shi)會(hui)引發電氣事(shi)故。

2、結(jie)構尺寸不(bu)合格的電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)。結(jie)構尺寸的主要問題是護套(tao)厚度(du)，絕(jue)緣厚度(du)，當電(dian)(dian)(dian)纜(lan)(lan)的護套(tao)和絕(jue)緣厚度(du)不(bu)達標(biao)時，致(zhi)使電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)(dian)氣(qi)強度(du)會(hui)嚴重降低，導致(zhi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)的使用壽(shou)命縮短，嚴重時可導致(zhi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)被擊穿，絕(jue)緣（護套(tao)）層起不(bu)到(dao)正常保護作(zuo)用，從而發生電(dian)(dian)(dian)氣(qi)短路和火(huo)災等現象。

3、護套式絕緣(yuan)老化(hua)前的(de)(de)(de)抗張(zhang)強(qiang)度(du)(du)、伸長(chang)率合格(ge)的(de)(de)(de)電(dian)線(xian)(xian)電(dian)纜。絕緣(yuan)護套老化(hua)前的(de)(de)(de)抗張(zhang)強(qiang)度(du)(du)、伸長(chang)率不合格(ge)直接大(da)(da)大(da)(da)縮短(duan)電(dian)線(xian)(xian)電(dian)纜的(de)(de)(de)工(gong)作用壽命，而且在施工(gong)或在長(chang)時間(jian)通電(dian)且溫度(du)(du)較高的(de)(de)(de)環境(jing)中，極易出現(xian)絕緣(yuan)體斷(duan)裂，致使帶電(dian)導體裸露(lu)，發(fa)生(sheng)(sheng)(sheng)(sheng)能觸電(dian)式短(duan)路危險(xian)。其(qi)不合格(ge)的(de)(de)(de)主(zhu)要原因是(shi)使用了再生(sheng)(sheng)(sheng)(sheng)料(liao)生(sheng)(sheng)(sheng)(sheng)產，以(yi)降低產品成本，二(er)是(shi)不具備生(sheng)(sheng)(sheng)(sheng)產資格(ge)小型企(qi)業。

4、導(dao)體電(dian)(dian)(dian)阻不(bu)合(he)格的(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)體電(dian)(dian)(dian)阻主(zhu)要(yao)是(shi)考核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)體材(cai)料(liao)以及(ji)截(jie)面是(shi)否符(fu)合(he)的(de)(de)重(zhong)要(yao)指標。當導(dao)體電(dian)(dian)(dian)阻超(chao)標時(shi)，就(jiu)增大了(le)電(dian)(dian)(dian)流在線(xian)路上通(tong)過時(shi)的(de)(de)損耗，加(jia)(jia)劇(ju)了(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)發(fa)熱。導(dao)體電(dian)(dian)(dian)阻不(bu)合(he)格的(de)(de)原因，主(zhu)要(yao)進企業(ye)為了(le)降(jiang)低成本，將占原材(cai)料(liao)成本80%的(de)(de)銅材(cai)縮水，要(yao)么降(jiang)低導(dao)體的(de)(de)截(jie)面積，要(yao)么使(shi)用含雜質過高的(de)(de)再生銅，這樣(yang)致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)體電(dian)(dian)(dian)阻嚴重(zhong)超(chao)標，在使(shi)用過程(cheng)中(zhong)除易引發(fa)火災，還會加(jia)(jia)速包覆在電(dian)(dian)(dian)線(xian)外的(de)(de)絕(jue)緣層(ceng)的(de)(de)老(lao)化。

在購(gou)買(mai)電線電纜的過程中，消費者(zhe)應注意(yi)以下幾個事

第一、要觀察(cha)電線(xian)的(de)(de)外觀。合格產品的(de)(de)絕緣（護套）層柔(rou)軟(ruan)、有韌性和伸縮(suo)性、表面層緊(jin)密、光滑(hua)、無粗糙感。如果包裹電線(xian)的(de)(de)塑料(liao)很容易被(bei)剝去，則存在塑料(liao)強度不夠的(de)(de)問(wen)題。

第二、要(yao)看(kan)電線的截面(mian)。合格產品的銅芯或鋁芯表面(mian)應該具有金屬光澤，表面(mian)發黑的銅或表面(mian)發白的鋁說明已(yi)被氧化。

第三(san)、在(zai)購買(mai)電(dian)(dian)線(xian)時應注意查看(kan)質量(liang)合格證書。如果電(dian)(dian)線(xian)的(de)質量(liang)合格，那么其電(dian)(dian)線(xian)質量(liang)應該也受過檢驗(yan)，不(bu)會(hui)有(you)太(tai)大的(de)問題。

沈(shen)陽凱鵬電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制(zhi)造有限公(gong)(gong)(gong)司(si)隸屬(shu)凱鵬集(ji)團(tuan)下屬(shu)子(zi)公(gong)(gong)(gong)司(si)，專(zhuan)門從(cong)事(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產制(zhi)造，是全國(guo)頗(po)具實力的沈(shen)陽電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠(chang)家，主營產品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加(jia)工。小編每(mei)天會(hui)在公(gong)(gong)(gong)司(si)官(guan)網發(fa)布電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表(biao)，及(ji)時(shi)更(geng)新(xin)銅價以(yi)及(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠(chang)報價信(xin)息(xi)。更(geng)多有關電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信(xin)息(xi)可(ke)點擊公(gong)(gong)(gong)司(si)官(guan)網szbowen.cn