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不合(he)格電線(xian)電纜的危害

電線電纜是用于傳輸電力、傳輸信息和實現電磁能量(liang)(liang)轉換的(de)一(yi)大類電工產(chan)品(pin)。在抽查過(guo)程中，發現了大量(liang)(liang)的(de)不合格產(chan)品(pin)，這些劣質產(chan)品(pin)給電力系統正常運(yun)行埋下諸多隱患。

1、標(biao)志不合(he)格(ge)的電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)。標(biao)志是(shi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)使用識別產品(pin)基本信(xin)息的主要途徑，根據標(biao)準(zhun)規定標(biao)志的主要內容是(shi)：產品(pin)型號(hao)、規格(ge)、標(biao)準(zhun)號(hao)、廠名(ming)、產地等在一(yi)定的標(biao)示間距內，當標(biao)志不合(he)格(ge)時，會造成施工人員識別錯誤，嚴重(zhong)時會引(yin)發電(dian)(dian)氣事故。

2、結構尺寸(cun)不(bu)(bu)合格的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜。結構尺寸(cun)的主(zhu)要問題是護(hu)套厚(hou)度(du)，絕(jue)緣厚(hou)度(du)，當(dang)電(dian)(dian)(dian)纜的護(hu)套和絕(jue)緣厚(hou)度(du)不(bu)(bu)達標時，致(zhi)使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜耐(nai)電(dian)(dian)(dian)氣強(qiang)度(du)會嚴重降(jiang)低，導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的使用壽命縮短(duan)，嚴重時可(ke)導(dao)致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜被擊穿，絕(jue)緣（護(hu)套）層起不(bu)(bu)到正常保(bao)護(hu)作用，從而發生電(dian)(dian)(dian)氣短(duan)路和火災等(deng)現象。

3、護(hu)套(tao)式絕緣老化(hua)前的抗張(zhang)強度、伸(shen)(shen)長率(lv)合(he)格(ge)(ge)的電(dian)(dian)線電(dian)(dian)纜。絕緣護(hu)套(tao)老化(hua)前的抗張(zhang)強度、伸(shen)(shen)長率(lv)不合(he)格(ge)(ge)直接大大縮短電(dian)(dian)線電(dian)(dian)纜的工作用壽命，而且在施工或在長時間通電(dian)(dian)且溫(wen)度較高的環境中(zhong)，極易出現(xian)絕緣體斷裂(lie)，致使帶電(dian)(dian)導體裸露，發生能觸電(dian)(dian)式短路危險。其不合(he)格(ge)(ge)的主要原因(yin)是(shi)使用了再生料生產，以降低產品成本，二是(shi)不具(ju)備生產資(zi)格(ge)(ge)小型企業(ye)。

4、導(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)電(dian)(dian)(dian)線(xian)(xian)(xian)(xian)。導(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)主要(yao)(yao)(yao)是(shi)考核電(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)(dao)體(ti)材(cai)料以及截面是(shi)否符合(he)的(de)(de)重要(yao)(yao)(yao)指標。當導(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)超(chao)標時，就增大了(le)電(dian)(dian)(dian)流在(zai)線(xian)(xian)(xian)(xian)路上通過時的(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)發熱。導(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)原因，主要(yao)(yao)(yao)進企業(ye)為(wei)了(le)降(jiang)低成本，將(jiang)占原材(cai)料成本80%的(de)(de)銅(tong)(tong)材(cai)縮水(shui)，要(yao)(yao)(yao)么(me)降(jiang)低導(dao)(dao)(dao)體(ti)的(de)(de)截面積(ji)，要(yao)(yao)(yao)么(me)使用含(han)雜質過高的(de)(de)再生銅(tong)(tong)，這(zhe)樣致使電(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)嚴重超(chao)標，在(zai)使用過程中除易引(yin)發火災(zai)，還會(hui)加速(su)包(bao)覆在(zai)電(dian)(dian)(dian)線(xian)(xian)(xian)(xian)外(wai)的(de)(de)絕緣層(ceng)的(de)(de)老化。

在(zai)購買電(dian)線電(dian)纜的過程(cheng)中，消費者應注(zhu)意以下幾個事

第一、要觀察電(dian)線的外觀。合格(ge)產品(pin)的絕(jue)緣（護套）層柔軟(ruan)、有韌(ren)性和伸縮性、表面(mian)層緊(jin)密、光滑、無粗糙感。如果包裹(guo)電(dian)線的塑(su)料(liao)(liao)很(hen)容易被剝(bo)去，則存在塑(su)料(liao)(liao)強度不夠的問題。

第二、要看(kan)電(dian)線(xian)的(de)(de)(de)截面(mian)(mian)(mian)。合格(ge)產品的(de)(de)(de)銅(tong)芯(xin)或鋁芯(xin)表(biao)面(mian)(mian)(mian)應該具有金屬(shu)光澤(ze)，表(biao)面(mian)(mian)(mian)發(fa)黑的(de)(de)(de)銅(tong)或表(biao)面(mian)(mian)(mian)發(fa)白的(de)(de)(de)鋁說明已被(bei)氧化(hua)。

第三、在購買(mai)電線(xian)時應(ying)注意查看質(zhi)(zhi)量(liang)合格證書。如果電線(xian)的(de)質(zhi)(zhi)量(liang)合格，那么其電線(xian)質(zhi)(zhi)量(liang)應(ying)該(gai)也受過檢驗，不會有太大的(de)問(wen)題。

沈陽凱鵬電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)制造有限公(gong)(gong)司隸屬凱鵬集團下屬子公(gong)(gong)司，專門從事電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)研發、生產制造，是全國(guo)頗(po)具實力(li)的沈陽電(dian)(dian)(dian)(dian)纜(lan)廠(chang)家，主營產品(pin)：電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)、控制電(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)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，以及(ji)(ji)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)代加(jia)工。小編(bian)每天會(hui)在公(gong)(gong)司官網發布(bu)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)價(jia)格表(biao)，及(ji)(ji)時更(geng)新銅價(jia)以及(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)廠(chang)報價(jia)信息。更(geng)多有關(guan)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)信息可點擊公(gong)(gong)司官網szbowen.cn