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不合格電線電纜的危害

電(dian)線電(dian)纜是(shi)用于(yu)傳(chuan)輸電(dian)力、傳(chuan)輸信(xin)息和實現電(dian)磁能量轉換的(de)一大類電(dian)工產品。在抽查過程中，發現了大量的(de)不合格產品，這(zhe)些(xie)劣質產品給(gei)電(dian)力系(xi)統正常運(yun)行埋下諸多隱患。

1、標(biao)志(zhi)不合格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜。標(biao)志(zhi)是(shi)電(dian)(dian)線電(dian)(dian)纜使用識別產品基(ji)本信息的(de)主要途徑，根(gen)據標(biao)準(zhun)規定(ding)標(biao)志(zhi)的(de)主要內容是(shi)：產品型(xing)號、規格(ge)、標(biao)準(zhun)號、廠名、產地等(deng)在一(yi)定(ding)的(de)標(biao)示間距內，當標(biao)志(zhi)不合格(ge)時，會(hui)(hui)造成(cheng)施工人員識別錯誤，嚴重(zhong)時會(hui)(hui)引發(fa)電(dian)(dian)氣事故。

2、結構尺(chi)寸不(bu)合格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜。結構尺(chi)寸的(de)主要問題是護套(tao)厚(hou)度，絕(jue)緣(yuan)厚(hou)度，當電(dian)(dian)纜的(de)護套(tao)和(he)絕(jue)緣(yuan)厚(hou)度不(bu)達(da)標時(shi)，致使電(dian)(dian)線(xian)電(dian)(dian)纜耐電(dian)(dian)氣(qi)(qi)強度會(hui)嚴重降低(di)，導致電(dian)(dian)線(xian)電(dian)(dian)纜的(de)使用壽命縮短，嚴重時(shi)可導致電(dian)(dian)線(xian)電(dian)(dian)纜被擊穿，絕(jue)緣(yuan)（護套(tao)）層起不(bu)到正常保護作(zuo)用，從而(er)發生(sheng)電(dian)(dian)氣(qi)(qi)短路和(he)火災等(deng)現象。

3、護(hu)套(tao)式絕緣(yuan)老(lao)化(hua)前的抗張強(qiang)(qiang)度、伸長(chang)率(lv)合(he)格(ge)的電(dian)(dian)線電(dian)(dian)纜。絕緣(yuan)護(hu)套(tao)老(lao)化(hua)前的抗張強(qiang)(qiang)度、伸長(chang)率(lv)不合(he)格(ge)直接大(da)大(da)縮(suo)短電(dian)(dian)線電(dian)(dian)纜的工作用壽命(ming)，而(er)且在(zai)施工或在(zai)長(chang)時間通電(dian)(dian)且溫度較高的環(huan)境中，極易出現絕緣(yuan)體斷裂，致使帶電(dian)(dian)導體裸露，發生能觸電(dian)(dian)式短路危(wei)險。其不合(he)格(ge)的主要原因是(shi)使用了再生料(liao)生產，以降低產品成本，二是(shi)不具備(bei)生產資格(ge)小型企業。

4、導體(ti)(ti)電(dian)阻(zu)不合格的(de)(de)電(dian)線(xian)。導體(ti)(ti)電(dian)阻(zu)主要是考核電(dian)線(xian)電(dian)纜的(de)(de)導體(ti)(ti)材料以及截面是否符(fu)合的(de)(de)重要指標。當(dang)導體(ti)(ti)電(dian)阻(zu)超標時，就增大了(le)電(dian)流在(zai)(zai)線(xian)路上通過時的(de)(de)損耗，加劇了(le)電(dian)線(xian)電(dian)纜的(de)(de)發熱。導體(ti)(ti)電(dian)阻(zu)不合格的(de)(de)原因，主要進(jin)企(qi)業為了(le)降(jiang)低成(cheng)(cheng)本，將占原材料成(cheng)(cheng)本80%的(de)(de)銅材縮水，要么降(jiang)低導體(ti)(ti)的(de)(de)截面積，要么使用含雜(za)質(zhi)過高的(de)(de)再生銅，這(zhe)樣(yang)致使電(dian)線(xian)電(dian)纜的(de)(de)導體(ti)(ti)電(dian)阻(zu)嚴重超標，在(zai)(zai)使用過程中除(chu)易引發火災(zai)，還會加速包覆在(zai)(zai)電(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買(mai)電線電纜(lan)的過(guo)程中(zhong)，消費(fei)者應注意以下幾個(ge)事

第一(yi)、要(yao)觀察電線的(de)(de)外觀。合格產品的(de)(de)絕緣（護套）層(ceng)(ceng)柔(rou)軟、有韌性和伸縮性、表面(mian)層(ceng)(ceng)緊密(mi)、光滑、無粗糙感。如果(guo)包裹電線的(de)(de)塑(su)料(liao)很(hen)容易被(bei)剝去，則存在塑(su)料(liao)強(qiang)度不夠(gou)的(de)(de)問題。

第二、要看電線(xian)的(de)截面(mian)。合(he)格產品(pin)的(de)銅(tong)芯或鋁(lv)芯表(biao)(biao)面(mian)應該具有(you)金屬光(guang)澤，表(biao)(biao)面(mian)發黑的(de)銅(tong)或表(biao)(biao)面(mian)發白的(de)鋁(lv)說明已被氧化(hua)。

第三、在購買電線(xian)時應(ying)注意(yi)查看質量(liang)合格證書。如(ru)果電線(xian)的質量(liang)合格，那么其電線(xian)質量(liang)應(ying)該也受過檢驗(yan)，不會有太大的問題。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)(zhi)造有限(xian)公(gong)(gong)司(si)隸屬凱鵬集團下屬子公(gong)(gong)司(si)，專門(men)從事電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產(chan)制(zhi)(zhi)造，是全國頗具實力的沈陽(yang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)家，主(zhu)營產(chan)品：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計(ji)算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編(bian)每天會在公(gong)(gong)司(si)官(guan)網(wang)發布電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及(ji)時更(geng)新銅價(jia)以及(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)報(bao)價(jia)信息(xi)。更(geng)多有關電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息(xi)可點擊公(gong)(gong)司(si)官(guan)網(wang)szbowen.cn