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不合(he)格(ge)電(dian)線電(dian)纜(lan)的危害

電線(xian)電纜是用于傳(chuan)輸(shu)電力、傳(chuan)輸(shu)信息(xi)和實現電磁(ci)能量轉換的一大類電工產品(pin)。在抽查過程(cheng)中，發現了大量的不合格產品(pin)，這(zhe)些(xie)劣質產品(pin)給(gei)電力系統正常運行埋下(xia)諸多隱(yin)患(huan)。

1、標(biao)(biao)志(zhi)不(bu)合格的(de)電(dian)線電(dian)纜。標(biao)(biao)志(zhi)是電(dian)線電(dian)纜使用識(shi)別產(chan)(chan)品基本信息的(de)主要(yao)途徑，根(gen)據(ju)標(biao)(biao)準規定標(biao)(biao)志(zhi)的(de)主要(yao)內(nei)容是：產(chan)(chan)品型號、規格、標(biao)(biao)準號、廠名、產(chan)(chan)地(di)等在一定的(de)標(biao)(biao)示間(jian)距內(nei)，當標(biao)(biao)志(zhi)不(bu)合格時(shi)(shi)，會(hui)造成施工人員識(shi)別錯誤，嚴重時(shi)(shi)會(hui)引發電(dian)氣事故。

2、結(jie)構尺(chi)寸不合格的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜。結(jie)構尺(chi)寸的(de)主要問題是護套厚(hou)(hou)度，絕(jue)(jue)緣厚(hou)(hou)度，當電(dian)(dian)纜的(de)護套和絕(jue)(jue)緣厚(hou)(hou)度不達標時，致(zhi)使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜耐電(dian)(dian)氣(qi)強度會(hui)嚴重降低，導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)使用壽命縮(suo)短(duan)(duan)，嚴重時可導致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜被(bei)擊穿，絕(jue)(jue)緣（護套）層起不到(dao)正(zheng)常保護作用，從而發生電(dian)(dian)氣(qi)短(duan)(duan)路和火(huo)災等(deng)現象。

3、護套式絕緣老化前的(de)抗張強(qiang)度(du)、伸(shen)長率合格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜。絕緣護套老化前的(de)抗張強(qiang)度(du)、伸(shen)長率不合格(ge)直(zhi)接(jie)大(da)大(da)縮短電(dian)(dian)線(xian)電(dian)(dian)纜的(de)工(gong)作用壽命，而且(qie)在施工(gong)或(huo)在長時間通電(dian)(dian)且(qie)溫度(du)較高(gao)的(de)環境中，極(ji)易(yi)出現絕緣體斷裂，致使帶電(dian)(dian)導體裸露，發(fa)生能觸電(dian)(dian)式短路(lu)危險。其不合格(ge)的(de)主要原因是使用了再生料生產，以降低產品成本(ben)，二是不具備生產資格(ge)小型(xing)企(qi)業。

4、導(dao)(dao)體(ti)(ti)(ti)電(dian)阻(zu)(zu)不合格的(de)(de)(de)電(dian)線。導(dao)(dao)體(ti)(ti)(ti)電(dian)阻(zu)(zu)主(zhu)要(yao)是考核電(dian)線電(dian)纜(lan)的(de)(de)(de)導(dao)(dao)體(ti)(ti)(ti)材料(liao)以(yi)及截面是否符合的(de)(de)(de)重要(yao)指標(biao)。當導(dao)(dao)體(ti)(ti)(ti)電(dian)阻(zu)(zu)超(chao)(chao)標(biao)時，就增大(da)了(le)電(dian)流在(zai)線路上通(tong)過(guo)時的(de)(de)(de)損耗，加劇了(le)電(dian)線電(dian)纜(lan)的(de)(de)(de)發(fa)熱。導(dao)(dao)體(ti)(ti)(ti)電(dian)阻(zu)(zu)不合格的(de)(de)(de)原因，主(zhu)要(yao)進企業為了(le)降低(di)成本(ben)，將占(zhan)原材料(liao)成本(ben)80%的(de)(de)(de)銅材縮水，要(yao)么降低(di)導(dao)(dao)體(ti)(ti)(ti)的(de)(de)(de)截面積，要(yao)么使(shi)用含雜質過(guo)高的(de)(de)(de)再生銅，這樣致使(shi)電(dian)線電(dian)纜(lan)的(de)(de)(de)導(dao)(dao)體(ti)(ti)(ti)電(dian)阻(zu)(zu)嚴重超(chao)(chao)標(biao)，在(zai)使(shi)用過(guo)程中除易引(yin)發(fa)火災(zai)，還會加速包覆在(zai)電(dian)線外的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在(zai)購買電線電纜的過程(cheng)中，消費(fei)者應注意以下(xia)幾個事

第(di)一、要觀(guan)察電線(xian)的(de)外觀(guan)。合格產(chan)品(pin)的(de)絕緣（護套）層柔(rou)軟(ruan)、有韌性和伸縮性、表面層緊密、光滑、無(wu)粗糙感。如果(guo)包裹電線(xian)的(de)塑料很(hen)容易被剝(bo)去，則存在塑料強(qiang)度不夠的(de)問題。

第(di)二、要(yao)看電線的(de)截面(mian)。合格產品的(de)銅芯(xin)或鋁芯(xin)表面(mian)應該具有金屬光澤，表面(mian)發(fa)黑的(de)銅或表面(mian)發(fa)白的(de)鋁說明已被氧化(hua)。

第三、在購買電線時應(ying)注意查看質量合格(ge)證書(shu)。如果(guo)電線的質量合格(ge)，那么其(qi)電線質量應(ying)該也受過檢(jian)驗，不會有太大的問題。

沈(shen)陽凱鵬電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)制(zhi)造有限公(gong)司隸屬(shu)(shu)凱鵬集團下屬(shu)(shu)子公(gong)司，專門從事(shi)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)研發(fa)、生產制(zhi)造，是全(quan)國頗具實(shi)力(li)(li)的沈(shen)陽電(dian)(dian)(dian)(dian)纜(lan)廠(chang)(chang)家(jia)，主營(ying)產品(pin)：電(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)纜(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)等，以(yi)及電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)代(dai)加工(gong)。小編(bian)每(mei)天會在公(gong)司官網(wang)發(fa)布電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)價格表，及時更新銅價以(yi)及電(dian)(dian)(dian)(dian)纜(lan)廠(chang)(chang)報價信(xin)息。更多有關電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)信(xin)息可點擊(ji)公(gong)司官網(wang)szbowen.cn