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不合格電線(xian)電纜的危害

電線(xian)電纜是用于傳(chuan)輸(shu)電力(li)、傳(chuan)輸(shu)信息(xi)和實(shi)現(xian)電磁能量轉換的(de)一大類電工產品(pin)。在抽查過(guo)程(cheng)中，發現(xian)了大量的(de)不(bu)合格產品(pin)，這(zhe)些劣質產品(pin)給電力(li)系(xi)統正常運行埋下諸(zhu)多隱患(huan)。

1、標(biao)志(zhi)不合格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜。標(biao)志(zhi)是電(dian)(dian)線電(dian)(dian)纜使用識別(bie)產(chan)品(pin)基本信息的(de)主要(yao)途徑，根(gen)據標(biao)準規定標(biao)志(zhi)的(de)主要(yao)內(nei)容是：產(chan)品(pin)型號、規格(ge)、標(biao)準號、廠名、產(chan)地等在一定的(de)標(biao)示間距內(nei)，當標(biao)志(zhi)不合格(ge)時，會造(zao)成施工(gong)人員識別(bie)錯(cuo)誤，嚴重時會引發電(dian)(dian)氣(qi)事故。

2、結構尺寸不合格的電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜。結構尺寸的主要問題是護(hu)套厚度(du)(du)，絕(jue)緣(yuan)厚度(du)(du)，當電(dian)(dian)(dian)(dian)纜的護(hu)套和(he)絕(jue)緣(yuan)厚度(du)(du)不達標時(shi)，致使(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜耐電(dian)(dian)(dian)(dian)氣(qi)強度(du)(du)會(hui)嚴重降低，導致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的使(shi)用(yong)壽命(ming)縮(suo)短，嚴重時(shi)可導致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜被擊穿，絕(jue)緣(yuan)（護(hu)套）層起不到正常保護(hu)作用(yong)，從而發生電(dian)(dian)(dian)(dian)氣(qi)短路和(he)火災等現象(xiang)。

3、護套式絕(jue)緣老化(hua)前(qian)(qian)的(de)(de)抗(kang)張強(qiang)度(du)(du)、伸長(chang)率合格(ge)的(de)(de)電(dian)(dian)線電(dian)(dian)纜。絕(jue)緣護套老化(hua)前(qian)(qian)的(de)(de)抗(kang)張強(qiang)度(du)(du)、伸長(chang)率不合格(ge)直(zhi)接大大縮短(duan)電(dian)(dian)線電(dian)(dian)纜的(de)(de)工(gong)作用壽命，而且在(zai)施(shi)工(gong)或在(zai)長(chang)時(shi)間通電(dian)(dian)且溫度(du)(du)較高的(de)(de)環境中，極易出現絕(jue)緣體斷裂，致(zhi)使(shi)帶(dai)電(dian)(dian)導體裸露(lu)，發生(sheng)能觸電(dian)(dian)式短(duan)路危險。其不合格(ge)的(de)(de)主要原(yuan)因是(shi)使(shi)用了再生(sheng)料生(sheng)產(chan)，以降低產(chan)品(pin)成本，二是(shi)不具備生(sheng)產(chan)資格(ge)小型企業。

4、導體(ti)電(dian)(dian)(dian)阻(zu)不合格的電(dian)(dian)(dian)線。導體(ti)電(dian)(dian)(dian)阻(zu)主(zhu)要(yao)是(shi)考核電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的導體(ti)材料以及截面是(shi)否符合的重要(yao)指標(biao)。當(dang)導體(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時，就增(zeng)大(da)了電(dian)(dian)(dian)流(liu)在線路上通過(guo)時的損耗，加(jia)(jia)劇了電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的發熱。導體(ti)電(dian)(dian)(dian)阻(zu)不合格的原(yuan)因(yin)，主(zhu)要(yao)進企業為了降(jiang)低(di)成(cheng)本，將占原(yuan)材料成(cheng)本80%的銅材縮水，要(yao)么降(jiang)低(di)導體(ti)的截面積，要(yao)么使(shi)(shi)用(yong)含雜質過(guo)高的再生銅，這樣致使(shi)(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的導體(ti)電(dian)(dian)(dian)阻(zu)嚴重超標(biao)，在使(shi)(shi)用(yong)過(guo)程中除易引發火災，還會加(jia)(jia)速包覆在電(dian)(dian)(dian)線外的絕緣層的老化。

在購買電線電纜的過(guo)程中，消費者應注意以下(xia)幾個事

第(di)一、要觀察電(dian)線(xian)的(de)外觀。合格產(chan)品的(de)絕緣（護套）層柔軟、有韌性和伸縮性、表面層緊密、光滑、無粗糙感。如果包裹電(dian)線(xian)的(de)塑(su)料很容易(yi)被剝去，則存(cun)在(zai)塑(su)料強度(du)不夠的(de)問題。

第(di)二、要看電線(xian)的截面(mian)(mian)。合格產品的銅(tong)芯或鋁(lv)芯表(biao)面(mian)(mian)應(ying)該具有金(jin)屬光澤，表(biao)面(mian)(mian)發(fa)黑的銅(tong)或表(biao)面(mian)(mian)發(fa)白的鋁(lv)說明已被氧化。

第三(san)、在(zai)購買電線(xian)時應注意(yi)查看質量(liang)合(he)格證(zheng)書(shu)。如果電線(xian)的質量(liang)合(he)格，那么其(qi)電線(xian)質量(liang)應該(gai)也受過(guo)檢驗，不(bu)會有太大的問題(ti)。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制(zhi)造有限公司隸(li)屬凱鵬集團下屬子(zi)公司，專門從(cong)事電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發、生產制(zhi)造，是全(quan)國頗(po)具實力的沈陽(yang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家(jia)，主營(ying)產品(pin)：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加工(gong)。小編每天會在(zai)公司官網(wang)發布電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表(biao)，及(ji)時更(geng)新銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信息(xi)。更(geng)多有關電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息(xi)可點擊公司官網(wang)szbowen.cn