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不合格電(dian)線電(dian)纜的危(wei)害

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜是用于傳(chuan)輸電(dian)(dian)(dian)力、傳(chuan)輸信(xin)息和(he)實現電(dian)(dian)(dian)磁(ci)能量轉換的一大類電(dian)(dian)(dian)工產(chan)品(pin)。在抽查(cha)過程(cheng)中(zhong)，發現了大量的不合格產(chan)品(pin)，這些劣(lie)質產(chan)品(pin)給電(dian)(dian)(dian)力系(xi)統正常運行埋下(xia)諸多隱患。

1、標(biao)志(zhi)(zhi)不(bu)合格(ge)的電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜。標(biao)志(zhi)(zhi)是電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜使用識別產(chan)(chan)品(pin)基(ji)本(ben)信息的主要途徑，根(gen)據標(biao)準(zhun)規定標(biao)志(zhi)(zhi)的主要內容是：產(chan)(chan)品(pin)型號、規格(ge)、標(biao)準(zhun)號、廠名、產(chan)(chan)地等(deng)在一定的標(biao)示間距內，當標(biao)志(zhi)(zhi)不(bu)合格(ge)時，會(hui)造成(cheng)施工人員識別錯誤，嚴重時會(hui)引(yin)發電(dian)(dian)(dian)(dian)氣事故(gu)。

2、結(jie)構(gou)尺寸不合格(ge)的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。結(jie)構(gou)尺寸的主(zhu)要問題是護(hu)套(tao)厚度，絕(jue)緣(yuan)厚度，當(dang)電(dian)(dian)(dian)纜(lan)的護(hu)套(tao)和絕(jue)緣(yuan)厚度不達標時(shi)，致使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)耐(nai)電(dian)(dian)(dian)氣(qi)強度會嚴重降低，導(dao)致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的使用壽命(ming)縮短，嚴重時(shi)可導(dao)致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)被擊(ji)穿，絕(jue)緣(yuan)（護(hu)套(tao)）層起不到(dao)正常保(bao)護(hu)作用，從而(er)發生電(dian)(dian)(dian)氣(qi)短路和火災等現象(xiang)。

3、護套(tao)式絕緣老(lao)化(hua)前的(de)抗張(zhang)強度(du)、伸長率合(he)格(ge)的(de)電(dian)線電(dian)纜(lan)。絕緣護套(tao)老(lao)化(hua)前的(de)抗張(zhang)強度(du)、伸長率不(bu)合(he)格(ge)直接大大縮短(duan)電(dian)線電(dian)纜(lan)的(de)工作(zuo)用壽命，而(er)且在施工或(huo)在長時(shi)間通(tong)電(dian)且溫度(du)較高的(de)環境中，極易出現絕緣體斷裂，致(zhi)使帶(dai)電(dian)導體裸露，發(fa)生能觸(chu)電(dian)式短(duan)路(lu)危險。其不(bu)合(he)格(ge)的(de)主要(yao)原因是使用了再生料(liao)生產(chan)(chan)，以降低(di)產(chan)(chan)品成本(ben)，二是不(bu)具備生產(chan)(chan)資(zi)格(ge)小型企業。

4、導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不合格的(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻主(zhu)(zhu)要是考核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)(dao)體(ti)(ti)材料以及截面是否符(fu)合的(de)(de)重(zhong)要指(zhi)標。當(dang)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻超標時，就(jiu)增大(da)了(le)電(dian)(dian)(dian)流在(zai)線(xian)路上(shang)通過(guo)(guo)時的(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)發(fa)熱。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻不合格的(de)(de)原(yuan)因(yin)，主(zhu)(zhu)要進企業(ye)為了(le)降(jiang)低成(cheng)本(ben)，將(jiang)占(zhan)原(yuan)材料成(cheng)本(ben)80%的(de)(de)銅(tong)材縮(suo)水，要么降(jiang)低導(dao)(dao)體(ti)(ti)的(de)(de)截面積，要么使用含雜質過(guo)(guo)高(gao)的(de)(de)再生銅(tong)，這樣致使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻嚴重(zhong)超標，在(zai)使用過(guo)(guo)程中除(chu)易(yi)引(yin)發(fa)火災，還會(hui)加速包覆在(zai)電(dian)(dian)(dian)線(xian)外的(de)(de)絕緣(yuan)層的(de)(de)老(lao)化。

在購買電線電纜的(de)過(guo)程中，消(xiao)費者應注(zhu)意以下(xia)幾(ji)個事

第一、要觀察電(dian)線的外(wai)觀。合格產品的絕(jue)緣（護套）層(ceng)柔軟、有韌性和(he)伸縮性、表(biao)面層(ceng)緊密(mi)、光滑、無粗(cu)糙感。如(ru)果包裹(guo)電(dian)線的塑(su)料(liao)很(hen)容易被剝去，則存在塑(su)料(liao)強度不夠的問題。

第二(er)、要看電線的(de)截面。合格產品的(de)銅(tong)芯或鋁(lv)芯表(biao)面應該具有(you)金屬光澤，表(biao)面發黑的(de)銅(tong)或表(biao)面發白的(de)鋁(lv)說明已被氧化。

第三、在購買電線時應注(zhu)意查看質量(liang)(liang)合格證書。如果電線的質量(liang)(liang)合格，那么其電線質量(liang)(liang)應該也受過檢驗，不會有(you)太(tai)大的問題。

沈陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜制造有限(xian)公(gong)(gong)司(si)隸屬凱(kai)鵬(peng)集(ji)團(tuan)下屬子公(gong)(gong)司(si)，專門從事(shi)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜研發、生(sheng)產(chan)制造，是全國頗(po)具實力的沈陽電(dian)(dian)(dian)(dian)纜廠(chang)家(jia)，主營產(chan)品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜、控制電(dian)(dian)(dian)(dian)纜、橡套電(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜、BTTZ電(dian)(dian)(dian)(dian)纜、YTTW電(dian)(dian)(dian)(dian)纜等(deng)，以及(ji)(ji)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜代加工。小編每(mei)天會在公(gong)(gong)司(si)官網(wang)發布電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜價(jia)格表，及(ji)(ji)時(shi)更新銅價(jia)以及(ji)(ji)電(dian)(dian)(dian)(dian)纜廠(chang)報價(jia)信(xin)息(xi)。更多有關(guan)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜信(xin)息(xi)可點擊(ji)公(gong)(gong)司(si)官網(wang)szbowen.cn