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不合格電線電纜的危害

電線電纜是(shi)用于傳(chuan)輸電力、傳(chuan)輸信息和實(shi)現(xian)電磁能量轉換(huan)的一(yi)大類電工產品(pin)。在抽查過(guo)程中，發(fa)現(xian)了(le)大量的不合格產品(pin)，這些劣質產品(pin)給電力系(xi)統正(zheng)常運行埋下諸(zhu)多隱患。

1、標(biao)(biao)(biao)(biao)(biao)志不(bu)(bu)合格(ge)的電線電纜(lan)。標(biao)(biao)(biao)(biao)(biao)志是(shi)電線電纜(lan)使(shi)用識別產(chan)(chan)品基(ji)本信息的主(zhu)要途徑，根(gen)據標(biao)(biao)(biao)(biao)(biao)準(zhun)規(gui)定(ding)標(biao)(biao)(biao)(biao)(biao)志的主(zhu)要內(nei)容是(shi)：產(chan)(chan)品型號、規(gui)格(ge)、標(biao)(biao)(biao)(biao)(biao)準(zhun)號、廠名(ming)、產(chan)(chan)地(di)等在一定(ding)的標(biao)(biao)(biao)(biao)(biao)示間距(ju)內(nei)，當標(biao)(biao)(biao)(biao)(biao)志不(bu)(bu)合格(ge)時，會造成施工人員(yuan)識別錯誤(wu)，嚴重時會引發(fa)電氣事故。

2、結(jie)構尺寸(cun)不(bu)合格的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)。結(jie)構尺寸(cun)的(de)主(zhu)要問題是護套厚度(du)，絕緣(yuan)厚度(du)，當電(dian)(dian)纜(lan)的(de)護套和絕緣(yuan)厚度(du)不(bu)達標時，致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)耐(nai)電(dian)(dian)氣強度(du)會嚴重降低(di)，導致電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)的(de)使用壽命縮短，嚴重時可導致電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)被(bei)擊穿，絕緣(yuan)（護套）層起不(bu)到正常保護作用，從而(er)發生電(dian)(dian)氣短路和火(huo)災等現象。

3、護套(tao)式絕緣(yuan)老化(hua)前的抗(kang)張強度、伸長(chang)率合格的電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。絕緣(yuan)護套(tao)老化(hua)前的抗(kang)張強度、伸長(chang)率不(bu)合格直(zhi)接(jie)大大縮短電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的工作用(yong)(yong)壽命(ming)，而且在(zai)(zai)施工或在(zai)(zai)長(chang)時(shi)間通(tong)電(dian)(dian)且溫度較(jiao)高的環境中(zhong)，極易出(chu)現絕緣(yuan)體斷裂(lie)，致(zhi)使帶(dai)電(dian)(dian)導(dao)體裸露，發生能(neng)觸電(dian)(dian)式短路危險(xian)。其(qi)不(bu)合格的主要原因(yin)是使用(yong)(yong)了再生料生產，以降(jiang)低產品成本，二是不(bu)具備生產資格小型企業(ye)。

4、導(dao)體(ti)(ti)(ti)電(dian)阻不合(he)格(ge)的(de)(de)電(dian)線(xian)。導(dao)體(ti)(ti)(ti)電(dian)阻主要是考核電(dian)線(xian)電(dian)纜的(de)(de)導(dao)體(ti)(ti)(ti)材(cai)(cai)料以及截面是否符合(he)的(de)(de)重要指(zhi)標。當(dang)導(dao)體(ti)(ti)(ti)電(dian)阻超(chao)標時(shi)，就增大了(le)電(dian)流在線(xian)路上(shang)通過時(shi)的(de)(de)損(sun)耗，加劇了(le)電(dian)線(xian)電(dian)纜的(de)(de)發熱(re)。導(dao)體(ti)(ti)(ti)電(dian)阻不合(he)格(ge)的(de)(de)原因，主要進企業為了(le)降低(di)成本(ben)，將占(zhan)原材(cai)(cai)料成本(ben)80%的(de)(de)銅材(cai)(cai)縮水(shui)，要么降低(di)導(dao)體(ti)(ti)(ti)的(de)(de)截面積，要么使用含雜質過高的(de)(de)再生銅，這樣(yang)致使電(dian)線(xian)電(dian)纜的(de)(de)導(dao)體(ti)(ti)(ti)電(dian)阻嚴(yan)重超(chao)標，在使用過程中(zhong)除易引發火(huo)災，還會加速包覆在電(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購(gou)買電(dian)線電(dian)纜的過程中，消費者應注意以下幾個事

第一、要觀(guan)察電線的外觀(guan)。合格產品的絕緣（護套）層柔軟(ruan)、有韌性和伸縮性、表面層緊密、光滑、無粗糙(cao)感。如果包(bao)裹電線的塑(su)料(liao)很容易被剝去，則(ze)存在塑(su)料(liao)強度不夠的問題。

第二、要看電線的(de)截(jie)面(mian)。合格(ge)產品的(de)銅(tong)芯或鋁(lv)芯表面(mian)應(ying)該(gai)具有金屬光澤，表面(mian)發(fa)黑的(de)銅(tong)或表面(mian)發(fa)白(bai)的(de)鋁(lv)說明已被氧化。

第三、在購買電(dian)(dian)線(xian)時應(ying)注意(yi)查看質(zhi)量(liang)合格(ge)證書(shu)。如果(guo)電(dian)(dian)線(xian)的質(zhi)量(liang)合格(ge)，那么其電(dian)(dian)線(xian)質(zhi)量(liang)應(ying)該也受過檢驗，不會有太大的問(wen)題。

沈(shen)陽凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)(zhi)造有(you)限公司隸屬(shu)凱鵬集團下屬(shu)子公司，專門從事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生產(chan)制(zhi)(zhi)造，是全國頗具實(shi)力的沈(shen)陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)(chang)家，主(zhu)營產(chan)品(pin)：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每天會在公司官網發(fa)布電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及時更(geng)新銅價(jia)以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)(chang)報價(jia)信息。更(geng)多有(you)關電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息可(ke)點擊公司官網szbowen.cn