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不(bu)合格(ge)電線(xian)電纜的危害

電(dian)線電(dian)纜是用于傳輸(shu)電(dian)力(li)、傳輸(shu)信息和實現電(dian)磁能量轉換的(de)一大類(lei)電(dian)工產品(pin)。在抽查過程中，發現了大量的(de)不合格產品(pin)，這些(xie)劣質產品(pin)給(gei)電(dian)力(li)系統(tong)正常運行埋下諸多(duo)隱患。

1、標(biao)(biao)志(zhi)不合格(ge)的(de)(de)電線電纜(lan)。標(biao)(biao)志(zhi)是(shi)電線電纜(lan)使用識(shi)(shi)別產品基本信息(xi)的(de)(de)主(zhu)要(yao)途(tu)徑(jing)，根(gen)據標(biao)(biao)準規定標(biao)(biao)志(zhi)的(de)(de)主(zhu)要(yao)內(nei)容(rong)是(shi)：產品型號(hao)、規格(ge)、標(biao)(biao)準號(hao)、廠(chang)名、產地等在一定的(de)(de)標(biao)(biao)示間距內(nei)，當標(biao)(biao)志(zhi)不合格(ge)時(shi)，會(hui)造成施工(gong)人員識(shi)(shi)別錯誤，嚴重時(shi)會(hui)引(yin)發電氣(qi)事故。

2、結構尺寸不合格的(de)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)。結構尺寸的(de)主要(yao)問(wen)題是護(hu)套(tao)厚度(du)(du)(du)，絕緣厚度(du)(du)(du)，當(dang)電(dian)(dian)(dian)(dian)纜(lan)的(de)護(hu)套(tao)和(he)絕緣厚度(du)(du)(du)不達標時，致使電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)氣強度(du)(du)(du)會嚴(yan)重降(jiang)低，導致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的(de)使用壽(shou)命(ming)縮短，嚴(yan)重時可導致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)被(bei)擊穿，絕緣（護(hu)套(tao)）層起不到正常保護(hu)作用，從而發生電(dian)(dian)(dian)(dian)氣短路和(he)火災等現(xian)象。

3、護套式(shi)絕(jue)緣老(lao)化前的(de)抗張(zhang)強度(du)、伸長(chang)率合(he)格(ge)(ge)的(de)電(dian)線電(dian)纜(lan)。絕(jue)緣護套老(lao)化前的(de)抗張(zhang)強度(du)、伸長(chang)率不合(he)格(ge)(ge)直接大(da)大(da)縮短電(dian)線電(dian)纜(lan)的(de)工(gong)作(zuo)用(yong)(yong)壽命，而且在(zai)施(shi)工(gong)或在(zai)長(chang)時間通電(dian)且溫度(du)較高(gao)的(de)環境中，極易出(chu)現絕(jue)緣體斷裂，致(zhi)使帶電(dian)導體裸(luo)露，發生(sheng)能觸(chu)電(dian)式(shi)短路(lu)危險(xian)。其不合(he)格(ge)(ge)的(de)主要原因(yin)是使用(yong)(yong)了再生(sheng)料生(sheng)產，以降低產品成本，二是不具備生(sheng)產資格(ge)(ge)小型企業。

4、導體電(dian)(dian)阻不(bu)合格的(de)(de)(de)(de)電(dian)(dian)線。導體電(dian)(dian)阻主(zhu)要是考核電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)(de)導體材料以及截面(mian)是否符(fu)合的(de)(de)(de)(de)重(zhong)要指標。當導體電(dian)(dian)阻超標時，就增(zeng)大(da)了(le)(le)電(dian)(dian)流在線路上通過時的(de)(de)(de)(de)損耗，加(jia)劇了(le)(le)電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)(de)發熱。導體電(dian)(dian)阻不(bu)合格的(de)(de)(de)(de)原(yuan)(yuan)因，主(zhu)要進企業(ye)為了(le)(le)降(jiang)低成本(ben)，將占(zhan)原(yuan)(yuan)材料成本(ben)80%的(de)(de)(de)(de)銅材縮水，要么(me)降(jiang)低導體的(de)(de)(de)(de)截面(mian)積，要么(me)使(shi)用(yong)含雜質過高的(de)(de)(de)(de)再生銅，這樣致使(shi)電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)(de)導體電(dian)(dian)阻嚴重(zhong)超標，在使(shi)用(yong)過程中(zhong)除易引發火災，還會加(jia)速包覆在電(dian)(dian)線外(wai)的(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)老化。

在購買電線電纜的(de)過(guo)程中，消費者應注意(yi)以下幾個事

第一(yi)、要(yao)觀察電(dian)線的(de)外觀。合格產品的(de)絕緣（護套）層柔軟、有韌性(xing)和伸縮性(xing)、表(biao)面層緊密(mi)、光滑、無粗(cu)糙感。如果包裹電(dian)線的(de)塑料(liao)很容易(yi)被剝去，則(ze)存在塑料(liao)強度不夠的(de)問(wen)題。

第二、要看電線(xian)的截面(mian)。合格產(chan)品的銅(tong)(tong)芯(xin)或(huo)鋁芯(xin)表(biao)(biao)面(mian)應(ying)該具有金屬光澤，表(biao)(biao)面(mian)發黑(hei)的銅(tong)(tong)或(huo)表(biao)(biao)面(mian)發白的鋁說明已(yi)被氧化。

第三、在購(gou)買電(dian)線(xian)時應(ying)注意查看質(zhi)量合格(ge)證書。如果電(dian)線(xian)的(de)質(zhi)量合格(ge)，那(nei)么其電(dian)線(xian)質(zhi)量應(ying)該也受過檢驗，不會(hui)有太大的(de)問題(ti)。

沈(shen)(shen)陽凱鵬電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造有限公(gong)司(si)隸屬凱鵬集團下屬子公(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產制(zhi)造，是全國(guo)頗具(ju)實力的沈(shen)(shen)陽電(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)氣(qi)裝備用(yong)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)代(dai)加工。小編每天會在公(gong)司(si)官網發布電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及時(shi)更(geng)新(xin)銅價(jia)以及電(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價(jia)信息(xi)。更(geng)多有關電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)信息(xi)可(ke)點擊公(gong)司(si)官網szbowen.cn