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不合格電線電纜的危害

電(dian)(dian)線電(dian)(dian)纜(lan)是用于傳(chuan)輸電(dian)(dian)力、傳(chuan)輸信息和實現(xian)電(dian)(dian)磁能量轉(zhuan)換(huan)的一大(da)類電(dian)(dian)工產品。在(zai)抽查(cha)過程中，發現(xian)了大(da)量的不合格產品，這些劣(lie)質產品給電(dian)(dian)力系統(tong)正常運行(xing)埋(mai)下諸多隱(yin)患。

1、標(biao)志不(bu)合格的電(dian)線電(dian)纜(lan)。標(biao)志是(shi)電(dian)線電(dian)纜(lan)使用識別(bie)產品基(ji)本信息的主(zhu)要途徑，根(gen)據標(biao)準規定標(biao)志的主(zhu)要內容是(shi)：產品型號(hao)、規格、標(biao)準號(hao)、廠名(ming)、產地等在一定的標(biao)示(shi)間(jian)距內，當標(biao)志不(bu)合格時，會造成施工人(ren)員(yuan)識別(bie)錯誤，嚴重時會引發(fa)電(dian)氣事故。

2、結(jie)構尺寸(cun)不合(he)格的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。結(jie)構尺寸(cun)的主要問題是護(hu)套厚度(du)(du)，絕(jue)緣(yuan)厚度(du)(du)，當電(dian)(dian)(dian)纜(lan)的護(hu)套和(he)(he)絕(jue)緣(yuan)厚度(du)(du)不達標時，致(zhi)使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)氣(qi)強度(du)(du)會(hui)嚴重(zhong)降低(di)，導致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的使用壽命(ming)縮短，嚴重(zhong)時可導致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)被擊穿，絕(jue)緣(yuan)（護(hu)套）層起不到(dao)正常保護(hu)作用，從而發生電(dian)(dian)(dian)氣(qi)短路和(he)(he)火災等現象。

3、護套式絕緣(yuan)老(lao)化(hua)(hua)前(qian)的(de)(de)抗張強(qiang)度、伸長率合格的(de)(de)電(dian)線(xian)電(dian)纜。絕緣(yuan)護套老(lao)化(hua)(hua)前(qian)的(de)(de)抗張強(qiang)度、伸長率不合格直接大大縮短電(dian)線(xian)電(dian)纜的(de)(de)工(gong)作用(yong)壽(shou)命，而且在施工(gong)或在長時間通電(dian)且溫度較(jiao)高(gao)的(de)(de)環境中，極易出現絕緣(yuan)體斷裂，致使(shi)帶電(dian)導體裸露，發生能觸電(dian)式短路危險(xian)。其不合格的(de)(de)主(zhu)要(yao)原因是使(shi)用(yong)了再生料生產，以降低(di)產品(pin)成本，二(er)是不具(ju)備生產資(zi)格小(xiao)型企業。

4、導(dao)體(ti)(ti)電(dian)阻(zu)不(bu)(bu)合格的(de)(de)(de)電(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)阻(zu)主要(yao)是考核電(dian)線(xian)(xian)電(dian)纜(lan)(lan)的(de)(de)(de)導(dao)體(ti)(ti)材(cai)料以及截(jie)面是否(fou)符(fu)合的(de)(de)(de)重要(yao)指標(biao)(biao)。當導(dao)體(ti)(ti)電(dian)阻(zu)超(chao)(chao)標(biao)(biao)時，就(jiu)增大(da)了電(dian)流(liu)在(zai)線(xian)(xian)路上通過時的(de)(de)(de)損耗，加(jia)劇了電(dian)線(xian)(xian)電(dian)纜(lan)(lan)的(de)(de)(de)發熱。導(dao)體(ti)(ti)電(dian)阻(zu)不(bu)(bu)合格的(de)(de)(de)原因(yin)，主要(yao)進企業為(wei)了降低成本，將占原材(cai)料成本80%的(de)(de)(de)銅(tong)材(cai)縮水，要(yao)么(me)降低導(dao)體(ti)(ti)的(de)(de)(de)截(jie)面積(ji)，要(yao)么(me)使(shi)(shi)用含雜(za)質(zhi)過高的(de)(de)(de)再生(sheng)銅(tong)，這樣致使(shi)(shi)電(dian)線(xian)(xian)電(dian)纜(lan)(lan)的(de)(de)(de)導(dao)體(ti)(ti)電(dian)阻(zu)嚴(yan)重超(chao)(chao)標(biao)(biao)，在(zai)使(shi)(shi)用過程中除易引發火災，還會加(jia)速包覆在(zai)電(dian)線(xian)(xian)外(wai)的(de)(de)(de)絕緣層(ceng)的(de)(de)(de)老(lao)化。

在購(gou)買電(dian)線電(dian)纜的過程中(zhong)，消費者應(ying)注意以(yi)下(xia)幾個事

第一、要觀(guan)察電線的(de)外觀(guan)。合格產品的(de)絕緣（護套）層(ceng)柔軟、有韌(ren)性(xing)和伸(shen)縮性(xing)、表面(mian)層(ceng)緊密(mi)、光(guang)滑、無粗糙(cao)感。如(ru)果包裹(guo)電線的(de)塑料很容易被剝去，則存(cun)在塑料強度(du)不夠的(de)問題。

第二、要看電線的截面。合格產品的銅芯(xin)或鋁(lv)芯(xin)表(biao)面應該具有金(jin)屬(shu)光(guang)澤(ze)，表(biao)面發黑(hei)的銅或表(biao)面發白的鋁(lv)說(shuo)明已被(bei)氧(yang)化。

第三、在購買(mai)電(dian)線(xian)時應(ying)注意查看質(zhi)量(liang)合格(ge)證書。如果電(dian)線(xian)的質(zhi)量(liang)合格(ge)，那么其電(dian)線(xian)質(zhi)量(liang)應(ying)該也受過檢驗，不(bu)會有太大的問題。

沈陽凱鵬電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制(zhi)(zhi)造(zao)有限公(gong)司隸(li)屬凱鵬集團下屬子公(gong)司，專門(men)從事(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發、生產制(zhi)(zhi)造(zao)，是全國頗具實力的沈陽電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)家，主營產品(pin)：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控制(zhi)(zhi)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)子計算機電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等(deng)，以及電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加(jia)工。小編每天會在公(gong)司官(guan)網發布電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價(jia)格表，及時(shi)更(geng)新銅價(jia)以及電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)報價(jia)信息。更(geng)多有關電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息可(ke)點擊(ji)公(gong)司官(guan)網szbowen.cn