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不合格電(dian)線電(dian)纜的危害

電線(xian)電纜是用于傳輸(shu)電力、傳輸(shu)信(xin)息和實現(xian)電磁(ci)能量轉(zhuan)換(huan)的(de)一大類電工產(chan)品。在抽查過(guo)程(cheng)中(zhong)，發現(xian)了(le)大量的(de)不(bu)合格產(chan)品，這些劣質產(chan)品給電力系統正常運行埋下諸多(duo)隱患(huan)。

1、標(biao)志(zhi)(zhi)不(bu)合格的電線電纜(lan)。標(biao)志(zhi)(zhi)是電線電纜(lan)使用識別產(chan)(chan)品基本信息的主要途徑，根據(ju)標(biao)準規(gui)定(ding)標(biao)志(zhi)(zhi)的主要內(nei)容(rong)是：產(chan)(chan)品型(xing)號、規(gui)格、標(biao)準號、廠名、產(chan)(chan)地等在一(yi)定(ding)的標(biao)示間距內(nei)，當標(biao)志(zhi)(zhi)不(bu)合格時(shi)，會(hui)造(zao)成施工人員識別錯誤，嚴重(zhong)時(shi)會(hui)引發電氣事故。

2、結構(gou)(gou)尺寸(cun)不合格的電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。結構(gou)(gou)尺寸(cun)的主要問題是(shi)護(hu)套(tao)(tao)厚(hou)度(du)(du)，絕緣厚(hou)度(du)(du)，當(dang)電(dian)(dian)纜(lan)的護(hu)套(tao)(tao)和絕緣厚(hou)度(du)(du)不達標時，致(zhi)使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)耐電(dian)(dian)氣強度(du)(du)會嚴重降低，導(dao)致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的使用壽命縮短，嚴重時可導(dao)致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)被擊穿，絕緣（護(hu)套(tao)(tao)）層(ceng)起不到(dao)正(zheng)常保護(hu)作用，從而發生電(dian)(dian)氣短路和火災等(deng)現象(xiang)。

3、護套式絕緣老化(hua)前的抗張強(qiang)度(du)、伸長率合(he)格(ge)的電線電纜(lan)(lan)。絕緣護套老化(hua)前的抗張強(qiang)度(du)、伸長率不(bu)合(he)格(ge)直接大大縮短電線電纜(lan)(lan)的工(gong)作用壽(shou)命，而(er)且(qie)在施(shi)工(gong)或在長時間通電且(qie)溫度(du)較高的環境中，極易(yi)出現絕緣體(ti)斷裂，致使(shi)帶(dai)電導體(ti)裸露，發生能觸電式短路(lu)危險。其不(bu)合(he)格(ge)的主(zhu)要原因是使(shi)用了再生料生產(chan)，以(yi)降(jiang)低產(chan)品成本，二是不(bu)具(ju)備生產(chan)資格(ge)小型企業。

4、導(dao)(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)不(bu)合格的(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)線。導(dao)(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)主要(yao)(yao)(yao)是(shi)考核電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)體(ti)材(cai)料以及截面(mian)是(shi)否(fou)符合的(de)(de)(de)(de)(de)(de)重要(yao)(yao)(yao)指(zhi)標。當導(dao)(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)超(chao)標時(shi)，就增(zeng)大(da)了電(dian)(dian)(dian)(dian)(dian)流在線路上通過時(shi)的(de)(de)(de)(de)(de)(de)損耗，加(jia)劇了電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)(de)發熱(re)。導(dao)(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)不(bu)合格的(de)(de)(de)(de)(de)(de)原因，主要(yao)(yao)(yao)進企業為了降低成本，將(jiang)占(zhan)原材(cai)料成本80%的(de)(de)(de)(de)(de)(de)銅材(cai)縮(suo)水(shui)，要(yao)(yao)(yao)么降低導(dao)(dao)(dao)(dao)體(ti)的(de)(de)(de)(de)(de)(de)截面(mian)積(ji)，要(yao)(yao)(yao)么使(shi)用含雜質過高的(de)(de)(de)(de)(de)(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)(de)導(dao)(dao)(dao)(dao)體(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)嚴重超(chao)標，在使(shi)用過程中除易(yi)引發火災，還會加(jia)速包覆在電(dian)(dian)(dian)(dian)(dian)線外(wai)的(de)(de)(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)(de)(de)老化。

在購買電線電纜的過程中，消費者應注意以下幾個事

第一(yi)、要觀(guan)察(cha)電線的外觀(guan)。合格產品(pin)的絕緣（護套）層(ceng)(ceng)柔軟、有(you)韌(ren)性(xing)和伸縮(suo)性(xing)、表面層(ceng)(ceng)緊密(mi)、光滑、無(wu)粗(cu)糙感。如(ru)果包裹電線的塑(su)料很容(rong)易(yi)被剝去，則(ze)存在塑(su)料強度(du)不夠的問題。

第二(er)、要看(kan)電線的(de)(de)截面。合格(ge)產(chan)品的(de)(de)銅(tong)芯或鋁芯表(biao)面應(ying)該具有金屬(shu)光澤，表(biao)面發(fa)黑(hei)的(de)(de)銅(tong)或表(biao)面發(fa)白的(de)(de)鋁說明已(yi)被氧(yang)化。

第三、在(zai)購買電線(xian)時應(ying)注(zhu)意查看(kan)質(zhi)(zhi)量合(he)格證(zheng)書。如果電線(xian)的質(zhi)(zhi)量合(he)格，那(nei)么(me)其電線(xian)質(zhi)(zhi)量應(ying)該也受過檢驗，不會有太大的問題。

沈陽凱鵬(peng)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限公(gong)(gong)司(si)(si)隸(li)屬凱鵬(peng)集團下屬子(zi)公(gong)(gong)司(si)(si)，專門(men)從事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生(sheng)產制造，是(shi)全(quan)國頗具實力(li)的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主(zhu)營產品：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機(ji)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(deng)，以及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天會在(zai)公(gong)(gong)司(si)(si)官(guan)網(wang)發布(bu)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及(ji)(ji)時更新銅價(jia)以及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價(jia)信息。更多有關(guan)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息可點擊(ji)公(gong)(gong)司(si)(si)官(guan)網(wang)szbowen.cn