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不合格電(dian)線電(dian)纜的危害

電(dian)線電(dian)纜是(shi)用于傳輸電(dian)力、傳輸信息和實現電(dian)磁能量轉換的(de)一大類電(dian)工產(chan)品。在抽查過程中，發現了大量的(de)不合格產(chan)品，這些劣質產(chan)品給電(dian)力系統正常(chang)運(yun)行埋下諸多隱患。

1、標(biao)志不(bu)合格的(de)電(dian)線電(dian)纜(lan)。標(biao)志是電(dian)線電(dian)纜(lan)使用識(shi)別產品基本信息(xi)的(de)主要(yao)途(tu)徑，根據標(biao)準規定(ding)標(biao)志的(de)主要(yao)內(nei)容是：產品型號(hao)、規格、標(biao)準號(hao)、廠名(ming)、產地等在一(yi)定(ding)的(de)標(biao)示(shi)間距內(nei)，當標(biao)志不(bu)合格時(shi)，會(hui)造成施(shi)工(gong)人員識(shi)別錯(cuo)誤，嚴重(zhong)時(shi)會(hui)引發電(dian)氣(qi)事(shi)故。

2、結構(gou)尺(chi)(chi)寸不(bu)合格的(de)電(dian)線(xian)電(dian)纜(lan)(lan)。結構(gou)尺(chi)(chi)寸的(de)主(zhu)要問題是護(hu)套(tao)厚(hou)度(du)(du)(du)，絕緣厚(hou)度(du)(du)(du)，當電(dian)纜(lan)(lan)的(de)護(hu)套(tao)和絕緣厚(hou)度(du)(du)(du)不(bu)達標(biao)時，致(zhi)使電(dian)線(xian)電(dian)纜(lan)(lan)耐電(dian)氣(qi)強(qiang)度(du)(du)(du)會嚴重降低，導(dao)(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)(lan)的(de)使用(yong)(yong)壽命縮(suo)短，嚴重時可導(dao)(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)(lan)被擊穿，絕緣（護(hu)套(tao)）層起不(bu)到正常保護(hu)作用(yong)(yong)，從而發生電(dian)氣(qi)短路(lu)和火(huo)災等現象。

3、護套式絕緣老化(hua)前(qian)的(de)(de)(de)抗張(zhang)強度、伸長(chang)率(lv)合(he)格(ge)的(de)(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)(lan)。絕緣護套老化(hua)前(qian)的(de)(de)(de)抗張(zhang)強度、伸長(chang)率(lv)不合(he)格(ge)直接(jie)大大縮(suo)短電(dian)(dian)線電(dian)(dian)纜(lan)(lan)的(de)(de)(de)工作用(yong)壽命，而且在施(shi)工或在長(chang)時間通電(dian)(dian)且溫度較高(gao)的(de)(de)(de)環境中，極易出現絕緣體(ti)斷裂，致使(shi)帶(dai)電(dian)(dian)導體(ti)裸露(lu)，發生能(neng)觸(chu)電(dian)(dian)式短路危險。其不合(he)格(ge)的(de)(de)(de)主要原因是使(shi)用(yong)了再生料生產(chan)，以降(jiang)低產(chan)品成(cheng)本，二是不具備生產(chan)資(zi)格(ge)小型企業。

4、導體(ti)(ti)電(dian)(dian)阻不(bu)合格(ge)的(de)(de)電(dian)(dian)線。導體(ti)(ti)電(dian)(dian)阻主要是(shi)(shi)考核(he)電(dian)(dian)線電(dian)(dian)纜的(de)(de)導體(ti)(ti)材(cai)料以及(ji)截面(mian)是(shi)(shi)否(fou)符合的(de)(de)重(zhong)要指標(biao)。當導體(ti)(ti)電(dian)(dian)阻超標(biao)時，就增大了(le)電(dian)(dian)流在線路上通過時的(de)(de)損(sun)耗，加劇了(le)電(dian)(dian)線電(dian)(dian)纜的(de)(de)發熱。導體(ti)(ti)電(dian)(dian)阻不(bu)合格(ge)的(de)(de)原因，主要進企業為了(le)降低(di)成本，將(jiang)占原材(cai)料成本80%的(de)(de)銅(tong)材(cai)縮水，要么降低(di)導體(ti)(ti)的(de)(de)截面(mian)積，要么使(shi)(shi)用(yong)(yong)含(han)雜質過高的(de)(de)再(zai)生銅(tong)，這樣致使(shi)(shi)電(dian)(dian)線電(dian)(dian)纜的(de)(de)導體(ti)(ti)電(dian)(dian)阻嚴重(zhong)超標(biao)，在使(shi)(shi)用(yong)(yong)過程(cheng)中除易引發火災，還會(hui)加速包覆在電(dian)(dian)線外的(de)(de)絕緣層的(de)(de)老化。

在(zai)購買電(dian)線電(dian)纜的過程中(zhong)，消費者應注意以(yi)下幾個事

第(di)一、要觀(guan)察電(dian)線(xian)的外觀(guan)。合格產品(pin)的絕緣（護套）層柔(rou)軟(ruan)、有韌性和伸縮性、表面層緊密、光(guang)滑、無粗糙感。如果包裹(guo)電(dian)線(xian)的塑(su)料(liao)很容易(yi)被剝去(qu)，則存在塑(su)料(liao)強度不夠的問題(ti)。

第(di)二、要(yao)看(kan)電線的截面(mian)。合格(ge)產品(pin)的銅(tong)芯或鋁(lv)芯表(biao)面(mian)應該具有金屬光澤，表(biao)面(mian)發黑的銅(tong)或表(biao)面(mian)發白的鋁(lv)說(shuo)明(ming)已(yi)被氧(yang)化。

第(di)三、在購買電(dian)(dian)線時(shi)應注意查看質量(liang)合(he)格(ge)證書。如果(guo)電(dian)(dian)線的質量(liang)合(he)格(ge)，那(nei)么其電(dian)(dian)線質量(liang)應該(gai)也受過檢驗(yan)，不會有(you)太大的問題。

沈(shen)(shen)陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制造有(you)限公(gong)司(si)(si)隸屬(shu)凱(kai)鵬(peng)集團下(xia)屬(shu)子公(gong)司(si)(si)，專(zhuan)門從事電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發、生產制造，是全國頗具實力的(de)沈(shen)(shen)陽電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主營(ying)產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以及電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每天會在公(gong)司(si)(si)官網發布電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價格表，及時(shi)更新銅(tong)價以及電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價信(xin)息。更多有(you)關電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信(xin)息可(ke)點擊公(gong)司(si)(si)官網szbowen.cn