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不合格電線電纜的危(wei)害

電(dian)線電(dian)纜(lan)是用于傳輸(shu)電(dian)力、傳輸(shu)信息和實現電(dian)磁(ci)能量轉換的一大(da)類(lei)電(dian)工產品。在(zai)抽查過程(cheng)中，發現了(le)大(da)量的不(bu)合格產品，這些劣質產品給電(dian)力系統正常運行埋下諸多隱患。

1、標(biao)(biao)(biao)(biao)志不(bu)合格的(de)電(dian)線(xian)電(dian)纜。標(biao)(biao)(biao)(biao)志是(shi)電(dian)線(xian)電(dian)纜使(shi)用(yong)識別(bie)產品基本信息的(de)主要(yao)途徑，根據標(biao)(biao)(biao)(biao)準規(gui)定(ding)(ding)標(biao)(biao)(biao)(biao)志的(de)主要(yao)內容是(shi)：產品型號、規(gui)格、標(biao)(biao)(biao)(biao)準號、廠名(ming)、產地等在(zai)一定(ding)(ding)的(de)標(biao)(biao)(biao)(biao)示間距內，當標(biao)(biao)(biao)(biao)志不(bu)合格時，會造成施工人員識別(bie)錯誤，嚴重時會引發電(dian)氣事故。

2、結構尺(chi)寸不合格的電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)。結構尺(chi)寸的主要問題是(shi)護套(tao)厚(hou)度，絕緣(yuan)(yuan)厚(hou)度，當電(dian)(dian)(dian)(dian)纜(lan)的護套(tao)和(he)(he)絕緣(yuan)(yuan)厚(hou)度不達標時，致(zhi)使(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)氣強度會嚴重降(jiang)低，導(dao)致(zhi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)的使(shi)用(yong)壽命縮短(duan)，嚴重時可導(dao)致(zhi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)被擊穿(chuan)，絕緣(yuan)(yuan)（護套(tao)）層起不到正常保護作用(yong)，從而發(fa)生電(dian)(dian)(dian)(dian)氣短(duan)路和(he)(he)火災(zai)等(deng)現象。

3、護套式絕(jue)緣老化前的抗張強(qiang)度、伸長率(lv)合格(ge)的電(dian)(dian)線電(dian)(dian)纜。絕(jue)緣護套老化前的抗張強(qiang)度、伸長率(lv)不合格(ge)直接大(da)(da)大(da)(da)縮短電(dian)(dian)線電(dian)(dian)纜的工作用(yong)壽(shou)命，而且在施工或在長時間通(tong)電(dian)(dian)且溫度較高(gao)的環(huan)境中，極易出現絕(jue)緣體斷裂，致使帶電(dian)(dian)導體裸(luo)露，發生(sheng)能觸電(dian)(dian)式短路危險。其(qi)不合格(ge)的主要原因(yin)是(shi)使用(yong)了(le)再生(sheng)料生(sheng)產(chan)(chan)，以(yi)降(jiang)低產(chan)(chan)品成(cheng)本(ben)，二是(shi)不具備生(sheng)產(chan)(chan)資格(ge)小型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)阻不合格(ge)(ge)的(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻主要是(shi)考(kao)核電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)導(dao)體(ti)(ti)材(cai)料以及截(jie)面是(shi)否符合的(de)重要指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)阻超(chao)標(biao)時(shi)(shi)，就增大(da)了(le)電(dian)(dian)(dian)流在線(xian)(xian)路上(shang)通過(guo)時(shi)(shi)的(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)發(fa)(fa)熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻不合格(ge)(ge)的(de)原因，主要進企業為了(le)降低成(cheng)(cheng)本，將占(zhan)原材(cai)料成(cheng)(cheng)本80%的(de)銅(tong)材(cai)縮水(shui)，要么(me)降低導(dao)體(ti)(ti)的(de)截(jie)面積，要么(me)使(shi)用(yong)含雜質過(guo)高的(de)再(zai)生銅(tong)，這樣(yang)致使(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)阻嚴重超(chao)標(biao)，在使(shi)用(yong)過(guo)程中除易引發(fa)(fa)火災，還會加速包覆(fu)在電(dian)(dian)(dian)線(xian)(xian)外的(de)絕緣層的(de)老(lao)化(hua)。

在(zai)購買電(dian)線電(dian)纜的過(guo)程中(zhong)，消費者(zhe)應注意(yi)以下(xia)幾個事

第一、要觀察(cha)電線(xian)的(de)外(wai)觀。合格產品的(de)絕緣（護套）層(ceng)柔軟、有韌性和伸縮性、表面層(ceng)緊密、光滑、無粗(cu)糙感。如果包裹電線(xian)的(de)塑料(liao)很容易被(bei)剝(bo)去，則存在塑料(liao)強度不夠的(de)問題。

第二、要看電(dian)線的(de)截(jie)面(mian)。合格(ge)產品(pin)的(de)銅芯(xin)或鋁(lv)芯(xin)表(biao)面(mian)應該具有金屬光澤(ze)，表(biao)面(mian)發黑(hei)的(de)銅或表(biao)面(mian)發白(bai)的(de)鋁(lv)說明(ming)已被(bei)氧化。

第三、在購買電(dian)線時應(ying)注意查看質量合格證書。如果(guo)電(dian)線的質量合格，那(nei)么(me)其電(dian)線質量應(ying)該也受過檢(jian)驗，不(bu)會有太大的問(wen)題。

沈陽(yang)凱鵬電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)制(zhi)造(zao)有(you)限公(gong)(gong)司隸屬凱鵬集團下屬子公(gong)(gong)司，專(zhuan)門從事(shi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)研發、生產(chan)制(zhi)造(zao)，是全國頗具(ju)實力的沈陽(yang)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠家，主(zhu)營產(chan)品：電(dian)(dian)力電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、橡套(tao)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)氣裝備用電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)子計(ji)算機電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)等，以(yi)及(ji)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)代加工。小編(bian)每天(tian)會在公(gong)(gong)司官網發布電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)價格(ge)表，及(ji)時更新銅(tong)價以(yi)及(ji)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠報價信息(xi)。更多有(you)關電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)信息(xi)可點擊公(gong)(gong)司官網szbowen.cn