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不合格電線電纜的危(wei)害

電(dian)線(xian)電(dian)纜是(shi)用(yong)于傳輸(shu)電(dian)力(li)、傳輸(shu)信息和實現(xian)電(dian)磁能(neng)量轉換的(de)一大類電(dian)工(gong)產品。在抽查過程(cheng)中，發現(xian)了大量的(de)不合格產品，這些劣質產品給電(dian)力(li)系統正常運行埋下諸(zhu)多隱(yin)患。

1、標志(zhi)不(bu)合(he)格(ge)的(de)電線(xian)電纜(lan)。標志(zhi)是電線(xian)電纜(lan)使用(yong)識(shi)別(bie)產品(pin)基(ji)本(ben)信息的(de)主要途徑，根據標準(zhun)規(gui)定標志(zhi)的(de)主要內(nei)容是：產品(pin)型號(hao)、規(gui)格(ge)、標準(zhun)號(hao)、廠名、產地(di)等在一(yi)定的(de)標示間距內(nei)，當標志(zhi)不(bu)合(he)格(ge)時，會造成(cheng)施(shi)工人員(yuan)識(shi)別(bie)錯誤，嚴重(zhong)時會引(yin)發電氣事(shi)故。

2、結構尺(chi)寸不(bu)(bu)合(he)格的(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。結構尺(chi)寸的(de)主(zhu)要問題是護(hu)套(tao)厚度(du)(du)，絕緣厚度(du)(du)，當電(dian)(dian)(dian)纜(lan)的(de)護(hu)套(tao)和絕緣厚度(du)(du)不(bu)(bu)達標時，致使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)氣強(qiang)度(du)(du)會(hui)嚴(yan)重(zhong)降(jiang)低，導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)使用(yong)壽命(ming)縮短，嚴(yan)重(zhong)時可導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)被(bei)擊穿(chuan)，絕緣（護(hu)套(tao)）層起不(bu)(bu)到正(zheng)常(chang)保(bao)護(hu)作用(yong)，從而發生電(dian)(dian)(dian)氣短路(lu)和火(huo)災等現象。

3、護套式絕(jue)緣(yuan)老(lao)化前的(de)抗(kang)張(zhang)強度、伸(shen)長(chang)(chang)率合(he)格的(de)電(dian)(dian)線電(dian)(dian)纜(lan)。絕(jue)緣(yuan)護套老(lao)化前的(de)抗(kang)張(zhang)強度、伸(shen)長(chang)(chang)率不(bu)合(he)格直接大(da)大(da)縮短電(dian)(dian)線電(dian)(dian)纜(lan)的(de)工(gong)作用壽命，而且(qie)在(zai)(zai)施(shi)工(gong)或在(zai)(zai)長(chang)(chang)時間通電(dian)(dian)且(qie)溫度較高的(de)環境中，極易出現絕(jue)緣(yuan)體斷(duan)裂，致使帶電(dian)(dian)導體裸露(lu)，發生能觸電(dian)(dian)式短路危險。其(qi)不(bu)合(he)格的(de)主要原因是(shi)使用了再生料(liao)生產，以降(jiang)低產品成本，二是(shi)不(bu)具備生產資格小(xiao)型企業。

4、導(dao)(dao)(dao)體電(dian)(dian)阻(zu)不合(he)格(ge)的(de)(de)(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)(dao)(dao)體電(dian)(dian)阻(zu)主(zhu)要是考核電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)(de)導(dao)(dao)(dao)體材(cai)料以及截面是否符合(he)的(de)(de)(de)(de)重要指(zhi)標。當(dang)導(dao)(dao)(dao)體電(dian)(dian)阻(zu)超標時(shi)，就增(zeng)大(da)了電(dian)(dian)流在線(xian)(xian)路(lu)上通過時(shi)的(de)(de)(de)(de)損耗(hao)，加(jia)劇了電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)(de)發熱。導(dao)(dao)(dao)體電(dian)(dian)阻(zu)不合(he)格(ge)的(de)(de)(de)(de)原因，主(zhu)要進企業為了降低成本，將占(zhan)原材(cai)料成本80%的(de)(de)(de)(de)銅(tong)材(cai)縮水(shui)，要么(me)(me)降低導(dao)(dao)(dao)體的(de)(de)(de)(de)截面積，要么(me)(me)使用含雜質過高的(de)(de)(de)(de)再生銅(tong)，這樣致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)(de)導(dao)(dao)(dao)體電(dian)(dian)阻(zu)嚴重超標，在使用過程中除易引發火災，還會加(jia)速包覆在電(dian)(dian)線(xian)(xian)外(wai)的(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)老化。

在購(gou)買電線電纜的過程中，消費(fei)者應注意以下幾(ji)個事

第(di)一、要觀察電(dian)(dian)線(xian)的(de)外觀。合格產品的(de)絕緣（護套(tao)）層(ceng)柔軟、有韌(ren)性和伸縮性、表(biao)面(mian)層(ceng)緊密、光滑(hua)、無粗(cu)糙感。如果包(bao)裹電(dian)(dian)線(xian)的(de)塑料(liao)很(hen)容易被剝去，則存(cun)在塑料(liao)強度不夠的(de)問題。

第二(er)、要看(kan)電(dian)線的(de)截面(mian)(mian)(mian)。合格產品(pin)的(de)銅(tong)芯或鋁(lv)芯表面(mian)(mian)(mian)應該具有金屬光(guang)澤，表面(mian)(mian)(mian)發黑的(de)銅(tong)或表面(mian)(mian)(mian)發白的(de)鋁(lv)說(shuo)明已被(bei)氧化(hua)。

第(di)三、在購買電線時應注(zhu)意(yi)查看質量合格證書。如果電線的質量合格，那么其電線質量應該(gai)也受過檢(jian)驗，不(bu)會有(you)太大的問題。

沈陽凱(kai)鵬電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造(zao)有限公(gong)(gong)司(si)隸屬(shu)凱(kai)鵬集團(tuan)下屬(shu)子公(gong)(gong)司(si)，專門從事電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生產(chan)制(zhi)造(zao)，是全國頗具實力的沈陽電(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主營產(chan)品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)子計算機電(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)(yi)及電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小(xiao)編每天(tian)會在公(gong)(gong)司(si)官網發(fa)布(bu)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及時更新銅價(jia)以(yi)(yi)及電(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價(jia)信(xin)息。更多有關電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)(lan)信(xin)息可(ke)點擊公(gong)(gong)司(si)官網szbowen.cn