電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)是用(yong)于傳(chuan)輸電(dian)(dian)(dian)(dian)(dian)力、傳(chuan)輸信(xin)息和(he)實現電(dian)(dian)(dian)(dian)(dian)磁能量轉換的一(yi)大(da)類電(dian)(dian)(dian)(dian)(dian)工產品(pin)。電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)在所有(you)經濟(ji)活(huo)(huo)(huo)動和(he)社會生(sheng)活(huo)(huo)(huo)中都有(you)著(zhu)不(bu)可(ke)忽視的作用(yong)。可(ke)以這(zhe)么說，凡有(you)人群生(sheng)活(huo)(huo)(huo)的地方，凡有(you)生(sheng)產、交通以及(ji)一(yi)切(qie)經濟(ji)活(huo)(huo)(huo)動的地方，都離不(bu)開電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)，所以，電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)的質量就直接影(ying)響著(zhu)我們的生(sheng)活(huo)(huo)(huo)。

不合(he)格(ge)的產品，主要問題存在于(yu)結構、導(dao)體(ti)尺寸(cun)、導(dao)體(ti)電(dian)阻、絕緣(yuan)和護套老化前抗張(zhang)強度(du)，消費者(zhe)使(shi)用(yong)了這樣的產品，極易(yi)發(fa)生漏電(dian)、觸電(dian)甚至是起火的危險，這些劣質產品給電(dian)力(li)系統正常(chang)運行埋(mai)下諸多隱患。

一、電(dian)線電(dian)纜(lan)(lan)有發生(sheng)單相接地(di)（短(duan)路）事故后，繼(ji)電(dian)保護裝置因未動作(zuo)切斷故障而引起(qi)電(dian)線電(dian)纜(lan)(lan)過熱導致絕緣層自燃。

二、護套(tao)式(shi)絕(jue)緣(yuan)老化前的(de)抗(kang)張(zhang)強(qiang)度(du)、伸長率合格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜。絕(jue)緣(yuan)護套(tao)老化前的(de)抗(kang)張(zhang)強(qiang)度(du)、伸長率不合格直接大大縮短電(dian)(dian)線(xian)電(dian)(dian)纜的(de)工作使用壽(shou)命，而且(qie)在施工或在長時(shi)間通(tong)電(dian)(dian)且(qie)溫度(du)較高的(de)環境(jing)中(zhong)，極(ji)易(yi)出現絕(jue)緣(yuan)體斷裂，致使帶電(dian)(dian)導體裸露，發生(sheng)能觸電(dian)(dian)式(shi)短路危(wei)險。

三、導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不(bu)合格的(de)(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)主(zhu)要是(shi)考核(he)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)材料以及截面是(shi)否(fou)符(fu)合的(de)(de)重要指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時(shi)，就增大了(le)電(dian)(dian)(dian)流在線(xian)(xian)路(lu)上(shang)通過時(shi)的(de)(de)損耗，加(jia)劇了(le)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不(bu)合格的(de)(de)原因，主(zhu)要是(shi)企業為了(le)降低(di)成(cheng)本，將占原材料成(cheng)本80%的(de)(de)銅(tong)材縮水，要么降低(di)導(dao)體(ti)(ti)的(de)(de)截面積，要么使(shi)用含(han)雜(za)質(zhi)過高(gao)的(de)(de)再生銅(tong)，這樣(yang)致(zhi)使(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重超標(biao)，在使(shi)用過程中除易引發火災，還(huan)會(hui)加(jia)速包覆在電(dian)(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化。

四、電(dian)(dian)線和電(dian)(dian)纜絕(jue)緣(yuan)層在(zai)正常運行中會(hui)逐(zhu)步老(lao)化，其使(shi)用(yong)壽命一般(ban)為15-20年(nian)，電(dian)(dian)線若因使(shi)用(yong)時間經常過負(fu)荷(he)或過電(dian)(dian)壓、加上(shang)絕(jue)緣(yuan)層厚度(du)不達標、安裝(zhuang)不當（如電(dian)(dian)纜的彎曲半(ban)徑(jing)太小，電(dian)(dian)線保(bao)護管(guan)管(guan)徑(jing)偏(pian)小）等(deng)，均有(you)可(ke)能引發事故。

五、結構尺寸(cun)不合格的電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)。結構尺寸(cun)的主(zhu)要問(wen)題是護(hu)(hu)(hu)套(tao)厚(hou)度，絕緣厚(hou)度，當電(dian)(dian)(dian)(dian)纜(lan)的護(hu)(hu)(hu)套(tao)和(he)絕緣厚(hou)度不達(da)標(biao)時，致使(shi)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)氣強(qiang)度會嚴重降低(di)，導(dao)致電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)的使(shi)用(yong)壽命縮短，嚴重時可(ke)導(dao)致電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)被擊穿(chuan)，絕緣（護(hu)(hu)(hu)套(tao)）層(ceng)起不到正常保(bao)護(hu)(hu)(hu)作用(yong)，從而發生電(dian)(dian)(dian)(dian)氣短路和(he)火災等現(xian)象(xiang)。