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不合格電線電纜的危害

電(dian)線電(dian)纜是用于傳輸電(dian)力(li)、傳輸信息和實現電(dian)磁能(neng)量轉(zhuan)換的(de)一大類(lei)電(dian)工產(chan)品(pin)。在抽查過程中，發現了大量的(de)不合格(ge)產(chan)品(pin)，這些劣質產(chan)品(pin)給電(dian)力(li)系統正常運行埋下(xia)諸(zhu)多隱患。

1、標(biao)(biao)志(zhi)不(bu)合(he)格的電(dian)線電(dian)纜。標(biao)(biao)志(zhi)是電(dian)線電(dian)纜使用識別(bie)產(chan)(chan)品(pin)(pin)基本信息(xi)的主要途徑，根(gen)據標(biao)(biao)準規定(ding)標(biao)(biao)志(zhi)的主要內容是：產(chan)(chan)品(pin)(pin)型號、規格、標(biao)(biao)準號、廠名、產(chan)(chan)地等在(zai)一(yi)定(ding)的標(biao)(biao)示間距(ju)內，當標(biao)(biao)志(zhi)不(bu)合(he)格時，會(hui)造成施(shi)工人員識別(bie)錯誤(wu)，嚴(yan)重時會(hui)引發電(dian)氣事(shi)故。

2、結構(gou)尺寸(cun)不(bu)(bu)合格的電(dian)(dian)線(xian)電(dian)(dian)纜。結構(gou)尺寸(cun)的主要(yao)問題是護(hu)(hu)套厚(hou)度(du)，絕(jue)緣(yuan)厚(hou)度(du)，當電(dian)(dian)纜的護(hu)(hu)套和絕(jue)緣(yuan)厚(hou)度(du)不(bu)(bu)達標時(shi)，致(zhi)使(shi)電(dian)(dian)線(xian)電(dian)(dian)纜耐電(dian)(dian)氣強度(du)會嚴重(zhong)降低，導(dao)致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜的使(shi)用壽命縮短(duan)，嚴重(zhong)時(shi)可(ke)導(dao)致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜被擊穿，絕(jue)緣(yuan)（護(hu)(hu)套）層起不(bu)(bu)到(dao)正常保護(hu)(hu)作用，從而發生電(dian)(dian)氣短(duan)路和火災等現象(xiang)。

3、護套式絕緣(yuan)老(lao)化前的(de)抗張(zhang)強(qiang)度(du)、伸長(chang)(chang)率(lv)合格的(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。絕緣(yuan)護套老(lao)化前的(de)抗張(zhang)強(qiang)度(du)、伸長(chang)(chang)率(lv)不(bu)合格直接大(da)(da)大(da)(da)縮(suo)短電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)工作用(yong)壽命，而且在施工或(huo)在長(chang)(chang)時間(jian)通電(dian)(dian)(dian)且溫度(du)較高的(de)環境中(zhong)，極易出現絕緣(yuan)體斷裂，致使帶(dai)電(dian)(dian)(dian)導體裸露，發生(sheng)能觸電(dian)(dian)(dian)式短路(lu)危險(xian)。其不(bu)合格的(de)主要原因是使用(yong)了再生(sheng)料生(sheng)產，以降低產品成本(ben)，二是不(bu)具備(bei)生(sheng)產資格小型(xing)企業。

4、導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不(bu)合格的(de)(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)主(zhu)要(yao)是(shi)考核(he)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)材料(liao)以及截(jie)面是(shi)否(fou)符合的(de)(de)(de)重(zhong)要(yao)指標(biao)。當(dang)導(dao)體(ti)(ti)電(dian)(dian)阻(zu)超標(biao)時(shi)，就增大了(le)電(dian)(dian)流在(zai)線(xian)(xian)路上(shang)通過時(shi)的(de)(de)(de)損耗(hao)，加劇了(le)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)(de)發(fa)熱。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不(bu)合格的(de)(de)(de)原因，主(zhu)要(yao)進(jin)企業(ye)為了(le)降低成(cheng)本，將(jiang)占原材料(liao)成(cheng)本80%的(de)(de)(de)銅(tong)材縮水，要(yao)么降低導(dao)體(ti)(ti)的(de)(de)(de)截(jie)面積，要(yao)么使用(yong)含雜質(zhi)過高的(de)(de)(de)再(zai)生(sheng)銅(tong)，這樣致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)(ti)電(dian)(dian)阻(zu)嚴重(zhong)超標(biao)，在(zai)使用(yong)過程中除易(yi)引發(fa)火災(zai)，還會(hui)加速包覆在(zai)電(dian)(dian)線(xian)(xian)外的(de)(de)(de)絕緣層(ceng)的(de)(de)(de)老化。

在購買電(dian)線電(dian)纜的過程中，消(xiao)費者應注(zhu)意以下幾個事

第一、要觀察(cha)電(dian)線的(de)外觀。合格產品的(de)絕緣（護套）層柔軟(ruan)、有韌性和伸縮性、表面層緊密、光滑、無粗糙感。如(ru)果包裹電(dian)線的(de)塑(su)料很容易被剝去，則存在塑(su)料強度不(bu)夠的(de)問題。

第二、要看電(dian)線的截(jie)面(mian)。合格產(chan)品的銅芯或鋁(lv)(lv)芯表面(mian)應該具(ju)有金屬光澤(ze)，表面(mian)發黑的銅或表面(mian)發白的鋁(lv)(lv)說明已(yi)被(bei)氧化。

第(di)三、在購買電線(xian)時應注意查看質(zhi)量合格證書。如果電線(xian)的質(zhi)量合格，那么(me)其電線(xian)質(zhi)量應該也受過檢驗，不會有太大的問(wen)題。

沈陽凱鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造(zao)有限公(gong)(gong)司(si)(si)隸屬凱鵬(peng)集團下屬子公(gong)(gong)司(si)(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發(fa)、生產制(zhi)造(zao)，是全國頗(po)具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營(ying)產品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子計算機(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等(deng)，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天會在公(gong)(gong)司(si)(si)官(guan)網發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及(ji)時更新(xin)銅價(jia)以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價(jia)信(xin)(xin)息(xi)。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)(xin)息(xi)可點擊(ji)公(gong)(gong)司(si)(si)官(guan)網szbowen.cn