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不合格電線電纜的危害

電線(xian)電纜是用于傳輸(shu)電力、傳輸(shu)信(xin)息(xi)和實(shi)現電磁能(neng)量轉換的一大類(lei)電工產(chan)(chan)品(pin)(pin)。在(zai)抽查(cha)過程(cheng)中，發現了大量的不合格產(chan)(chan)品(pin)(pin)，這些劣質產(chan)(chan)品(pin)(pin)給電力系(xi)統正常運(yun)行(xing)埋下諸多隱患。

1、標(biao)(biao)志(zhi)不合格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。標(biao)(biao)志(zhi)是(shi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)使用(yong)識別(bie)產(chan)品(pin)基本(ben)信息(xi)的(de)主要途徑，根據標(biao)(biao)準(zhun)規(gui)定標(biao)(biao)志(zhi)的(de)主要內容是(shi)：產(chan)品(pin)型(xing)號、規(gui)格、標(biao)(biao)準(zhun)號、廠名、產(chan)地等在一(yi)定的(de)標(biao)(biao)示間距內，當標(biao)(biao)志(zhi)不合格時(shi)，會造(zao)成施工(gong)人(ren)員(yuan)識別(bie)錯誤(wu)，嚴重時(shi)會引(yin)發電(dian)(dian)氣事(shi)故。

2、結(jie)(jie)構尺寸不(bu)合格的(de)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)。結(jie)(jie)構尺寸的(de)主(zhu)要問題是護套厚度(du)(du)，絕緣厚度(du)(du)，當電(dian)(dian)(dian)纜(lan)的(de)護套和絕緣厚度(du)(du)不(bu)達標時(shi)，致使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)氣(qi)強度(du)(du)會(hui)嚴(yan)重降低，導致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)使用壽命(ming)縮短，嚴(yan)重時(shi)可導致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)被(bei)擊穿，絕緣（護套）層(ceng)起不(bu)到正常(chang)保護作用，從而發生電(dian)(dian)(dian)氣(qi)短路和火災等現象。

3、護(hu)套式(shi)絕(jue)緣老(lao)化前的(de)抗(kang)(kang)張(zhang)(zhang)強度(du)、伸長率(lv)合(he)(he)格(ge)的(de)電線(xian)電纜。絕(jue)緣護(hu)套老(lao)化前的(de)抗(kang)(kang)張(zhang)(zhang)強度(du)、伸長率(lv)不合(he)(he)格(ge)直接大(da)(da)大(da)(da)縮短(duan)電線(xian)電纜的(de)工作(zuo)用壽命，而且在施工或(huo)在長時(shi)間通電且溫度(du)較高的(de)環境中，極易出現絕(jue)緣體(ti)斷裂，致使帶電導(dao)體(ti)裸露，發生能(neng)觸電式(shi)短(duan)路危(wei)險。其不合(he)(he)格(ge)的(de)主要原(yuan)因是(shi)使用了再生料生產，以降低產品(pin)成本，二(er)是(shi)不具備生產資格(ge)小型企業。

4、導體(ti)(ti)(ti)電(dian)阻(zu)不(bu)合格(ge)的(de)(de)電(dian)線(xian)(xian)。導體(ti)(ti)(ti)電(dian)阻(zu)主要是考(kao)核(he)電(dian)線(xian)(xian)電(dian)纜的(de)(de)導體(ti)(ti)(ti)材料以(yi)及截面是否符合的(de)(de)重要指標(biao)。當導體(ti)(ti)(ti)電(dian)阻(zu)超標(biao)時，就增大(da)了(le)電(dian)流在線(xian)(xian)路上通過(guo)(guo)時的(de)(de)損耗，加劇了(le)電(dian)線(xian)(xian)電(dian)纜的(de)(de)發(fa)熱。導體(ti)(ti)(ti)電(dian)阻(zu)不(bu)合格(ge)的(de)(de)原(yuan)因，主要進企業為了(le)降低(di)成(cheng)本(ben)，將(jiang)占原(yuan)材料成(cheng)本(ben)80%的(de)(de)銅材縮水，要么(me)降低(di)導體(ti)(ti)(ti)的(de)(de)截面積，要么(me)使用含(han)雜質(zhi)過(guo)(guo)高的(de)(de)再生銅，這樣致使電(dian)線(xian)(xian)電(dian)纜的(de)(de)導體(ti)(ti)(ti)電(dian)阻(zu)嚴(yan)重超標(biao)，在使用過(guo)(guo)程中(zhong)除易引發(fa)火(huo)災，還會加速包覆在電(dian)線(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化。

在(zai)購(gou)買電線(xian)電纜的過(guo)程中(zhong)，消費者應注意以下幾個事(shi)

第一、要觀(guan)察電(dian)線的(de)外(wai)觀(guan)。合格產(chan)品的(de)絕(jue)緣（護套）層柔(rou)軟、有韌性和(he)伸縮性、表面層緊密、光滑、無(wu)粗糙感。如果包裹電(dian)線的(de)塑料(liao)很容易被剝(bo)去，則存在塑料(liao)強度(du)不夠(gou)的(de)問題。

第二(er)、要看電線的截面。合格產品的銅(tong)芯或鋁芯表(biao)面應該具有(you)金屬(shu)光(guang)澤，表(biao)面發黑的銅(tong)或表(biao)面發白的鋁說明(ming)已被氧化。

第三、在購買電線(xian)時應(ying)注意查看質量(liang)合格證書。如果電線(xian)的(de)質量(liang)合格，那么其電線(xian)質量(liang)應(ying)該(gai)也受過檢驗，不會有太(tai)大的(de)問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制造(zao)有限公(gong)司(si)隸屬凱鵬集團下(xia)屬子公(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產制造(zao)，是全國(guo)頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)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)子計(ji)算(suan)機(ji)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(xiao)編每天會在公(gong)司(si)官(guan)網發(fa)布(bu)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價(jia)格(ge)表，及(ji)時更(geng)新銅價(jia)以及(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報(bao)價(jia)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(gong)司(si)官(guan)網szbowen.cn