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不合格電線電纜(lan)的危(wei)害

電(dian)線電(dian)纜是用于傳輸(shu)電(dian)力、傳輸(shu)信息和實現電(dian)磁能量(liang)轉換的一(yi)大類電(dian)工產品。在抽(chou)查過程中(zhong)，發現了大量(liang)的不合格產品，這些劣質產品給電(dian)力系統(tong)正(zheng)常運行埋下諸多隱患。

1、標(biao)志(zhi)不(bu)合格(ge)的(de)(de)電(dian)線(xian)電(dian)纜。標(biao)志(zhi)是(shi)電(dian)線(xian)電(dian)纜使用識別(bie)產(chan)(chan)品基本信息的(de)(de)主(zhu)要途徑，根據(ju)標(biao)準規定標(biao)志(zhi)的(de)(de)主(zhu)要內容是(shi)：產(chan)(chan)品型號、規格(ge)、標(biao)準號、廠名、產(chan)(chan)地等在(zai)一定的(de)(de)標(biao)示(shi)間(jian)距內，當標(biao)志(zhi)不(bu)合格(ge)時(shi)，會造成施工人員識別(bie)錯誤(wu)，嚴重時(shi)會引發(fa)電(dian)氣事故。

2、結(jie)構(gou)(gou)尺寸(cun)不合格的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜。結(jie)構(gou)(gou)尺寸(cun)的主要問題是護套(tao)厚(hou)度，絕(jue)緣厚(hou)度，當電(dian)(dian)(dian)纜的護套(tao)和絕(jue)緣厚(hou)度不達標時(shi)，致(zhi)使(shi)(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜耐(nai)電(dian)(dian)(dian)氣強(qiang)度會嚴(yan)重(zhong)降(jiang)低，導致(zhi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的使(shi)(shi)用壽命(ming)縮(suo)短，嚴(yan)重(zhong)時(shi)可(ke)導致(zhi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜被(bei)擊穿，絕(jue)緣（護套(tao)）層起不到正常保護作用，從(cong)而發生電(dian)(dian)(dian)氣短路和火(huo)災(zai)等現象(xiang)。

3、護套(tao)式(shi)絕緣(yuan)老(lao)化(hua)前的抗張強度(du)、伸長(chang)率(lv)合(he)格(ge)的電線電纜(lan)。絕緣(yuan)護套(tao)老(lao)化(hua)前的抗張強度(du)、伸長(chang)率(lv)不合(he)格(ge)直接大大縮短(duan)電線電纜(lan)的工作用(yong)壽命，而且(qie)在(zai)施工或在(zai)長(chang)時間(jian)通電且(qie)溫度(du)較高的環境(jing)中，極(ji)易出現絕緣(yuan)體斷裂，致使(shi)帶電導體裸露，發生能(neng)觸電式(shi)短(duan)路危險。其不合(he)格(ge)的主要(yao)原因是(shi)使(shi)用(yong)了(le)再生料生產，以降低產品(pin)成本，二是(shi)不具備生產資格(ge)小型企業(ye)。

4、導(dao)體電(dian)阻(zu)不(bu)合格的(de)(de)電(dian)線(xian)(xian)(xian)。導(dao)體電(dian)阻(zu)主要(yao)是考(kao)核電(dian)線(xian)(xian)(xian)電(dian)纜的(de)(de)導(dao)體材料(liao)以及截(jie)面(mian)是否符合的(de)(de)重要(yao)指標。當導(dao)體電(dian)阻(zu)超標時，就(jiu)增大了電(dian)流(liu)在線(xian)(xian)(xian)路上通過(guo)時的(de)(de)損耗，加劇了電(dian)線(xian)(xian)(xian)電(dian)纜的(de)(de)發(fa)(fa)熱。導(dao)體電(dian)阻(zu)不(bu)合格的(de)(de)原因(yin)，主要(yao)進企業為(wei)了降(jiang)低成本，將(jiang)占原材料(liao)成本80%的(de)(de)銅材縮水，要(yao)么(me)降(jiang)低導(dao)體的(de)(de)截(jie)面(mian)積，要(yao)么(me)使用(yong)含雜(za)質過(guo)高的(de)(de)再(zai)生銅，這樣致使電(dian)線(xian)(xian)(xian)電(dian)纜的(de)(de)導(dao)體電(dian)阻(zu)嚴重超標，在使用(yong)過(guo)程中(zhong)除易引發(fa)(fa)火災，還會加速包覆在電(dian)線(xian)(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化(hua)。

在購買電(dian)線(xian)電(dian)纜的過(guo)程(cheng)中，消(xiao)費者應(ying)注意以下幾個事(shi)

第一、要觀察電線的(de)外觀。合(he)格產品的(de)絕緣（護套(tao)）層柔軟、有韌(ren)性和(he)伸縮性、表面層緊(jin)密(mi)、光滑(hua)、無(wu)粗糙感。如果包裹電線的(de)塑(su)料很容(rong)易被剝去，則(ze)存在塑(su)料強度不夠(gou)的(de)問題。

第二、要看電線的截面(mian)。合格產品的銅芯或(huo)鋁芯表(biao)(biao)面(mian)應該具有金屬光澤，表(biao)(biao)面(mian)發黑(hei)的銅或(huo)表(biao)(biao)面(mian)發白(bai)的鋁說(shuo)明(ming)已被氧化。

第三、在購買電(dian)(dian)線(xian)時應(ying)注意查看質量合格(ge)證(zheng)書。如果電(dian)(dian)線(xian)的(de)質量合格(ge)，那么其電(dian)(dian)線(xian)質量應(ying)該也(ye)受過檢驗，不(bu)會(hui)有太大(da)的(de)問題(ti)。

沈陽(yang)凱鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制造有限公(gong)司(si)隸(li)屬凱鵬(peng)集團下屬子公(gong)司(si)，專(zhuan)門(men)從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)(fa)、生產(chan)制造，是全國頗具(ju)實力的沈陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主(zhu)營產(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每天會在公(gong)司(si)官(guan)網發(fa)(fa)布(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價格表，及(ji)時更新銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價信(xin)息。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信(xin)息可點擊公(gong)司(si)官(guan)網szbowen.cn