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不(bu)合格(ge)電線(xian)電纜的危害

電(dian)(dian)線電(dian)(dian)纜是用于(yu)傳(chuan)輸電(dian)(dian)力、傳(chuan)輸信息(xi)和實現(xian)電(dian)(dian)磁能量轉換(huan)的一大(da)類電(dian)(dian)工產品。在抽查過程中，發現(xian)了(le)大(da)量的不(bu)合格產品，這些劣質產品給電(dian)(dian)力系統正常運行埋下諸多(duo)隱(yin)患。

1、標(biao)志(zhi)不(bu)合(he)格(ge)的(de)(de)(de)電線電纜(lan)。標(biao)志(zhi)是電線電纜(lan)使用(yong)識別(bie)產品基本(ben)信息(xi)的(de)(de)(de)主要(yao)途徑，根據標(biao)準(zhun)規定(ding)標(biao)志(zhi)的(de)(de)(de)主要(yao)內(nei)容是：產品型號、規格(ge)、標(biao)準(zhun)號、廠名、產地(di)等在一定(ding)的(de)(de)(de)標(biao)示間(jian)距內(nei)，當標(biao)志(zhi)不(bu)合(he)格(ge)時，會(hui)造成施工人員識別(bie)錯(cuo)誤，嚴重(zhong)時會(hui)引發電氣事故。

2、結構(gou)尺寸不(bu)合格的電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)。結構(gou)尺寸的主要問(wen)題是護套厚度(du)，絕緣(yuan)厚度(du)，當電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的護套和絕緣(yuan)厚度(du)不(bu)達(da)標時，致(zhi)使電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)強度(du)會(hui)嚴重降低(di)，導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的使用壽(shou)命縮短，嚴重時可導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)被(bei)擊穿(chuan)，絕緣(yuan)（護套）層(ceng)起不(bu)到(dao)正常保護作用，從(cong)而發(fa)生電(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)短路和火災(zai)等現象。

3、護套式(shi)絕(jue)緣(yuan)老化前的(de)抗張(zhang)強(qiang)度(du)(du)、伸(shen)長(chang)率(lv)合格的(de)電線(xian)電纜。絕(jue)緣(yuan)護套老化前的(de)抗張(zhang)強(qiang)度(du)(du)、伸(shen)長(chang)率(lv)不合格直(zhi)接大(da)大(da)縮短電線(xian)電纜的(de)工作用壽命(ming)，而且在(zai)施(shi)工或在(zai)長(chang)時間通電且溫(wen)度(du)(du)較高(gao)的(de)環境中，極(ji)易出現絕(jue)緣(yuan)體(ti)斷(duan)裂(lie)，致使(shi)(shi)帶電導體(ti)裸(luo)露，發生能觸電式(shi)短路危險。其不合格的(de)主要原因是(shi)使(shi)(shi)用了再(zai)生料生產，以降低產品成本，二是(shi)不具(ju)備生產資格小型企業。

4、導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不合(he)格的(de)電(dian)(dian)(dian)線。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻主要(yao)(yao)是考核電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的(de)導(dao)(dao)體(ti)(ti)材料(liao)以及截(jie)面是否符合(he)的(de)重要(yao)(yao)指標。當導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻超標時，就增大了電(dian)(dian)(dian)流在線路上通過時的(de)損耗，加劇了電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的(de)發熱。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不合(he)格的(de)原因，主要(yao)(yao)進企業(ye)為了降(jiang)低成本，將(jiang)占原材料(liao)成本80%的(de)銅(tong)材縮水(shui)，要(yao)(yao)么降(jiang)低導(dao)(dao)體(ti)(ti)的(de)截(jie)面積(ji)，要(yao)(yao)么使(shi)(shi)用(yong)含雜質過高的(de)再(zai)生銅(tong)，這樣致使(shi)(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻嚴重超標，在使(shi)(shi)用(yong)過程(cheng)中除(chu)易引發火災，還會加速包覆在電(dian)(dian)(dian)線外的(de)絕緣層的(de)老(lao)化(hua)。

在購買電線電纜的過程中，消費者應注意以下幾(ji)個事(shi)

第一、要觀察電線的外觀。合格(ge)產品的絕(jue)緣（護套）層柔軟、有(you)韌性和(he)伸(shen)縮性、表面(mian)層緊密(mi)、光滑、無粗糙感。如果包(bao)裹電線的塑料很容易(yi)被剝(bo)去，則存在(zai)塑料強(qiang)度不夠的問題。

第二、要(yao)看電線的(de)截面。合(he)格(ge)產品的(de)銅芯或(huo)鋁(lv)芯表(biao)面應該具(ju)有金(jin)屬光澤，表(biao)面發黑的(de)銅或(huo)表(biao)面發白的(de)鋁(lv)說明(ming)已被氧化。

第三、在購買(mai)電(dian)線時應注意(yi)查(cha)看質(zhi)量(liang)合(he)格(ge)證書。如果電(dian)線的質(zhi)量(liang)合(he)格(ge)，那么(me)其(qi)電(dian)線質(zhi)量(liang)應該也受過檢(jian)驗，不會有太大的問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制造有限(xian)公司(si)(si)(si)隸(li)屬(shu)凱鵬集團下屬(shu)子公司(si)(si)(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產制造，是全國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等(deng)，以及電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代(dai)加工(gong)。小編(bian)每(mei)天會在公司(si)(si)(si)官網(wang)發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表，及時(shi)更新銅價以及電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信息(xi)。更多(duo)有關電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息(xi)可點擊公司(si)(si)(si)官網(wang)szbowen.cn