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不合(he)格(ge)電線電纜(lan)的危害

電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜是用于傳輸(shu)電(dian)(dian)(dian)力(li)、傳輸(shu)信(xin)息(xi)和實現(xian)電(dian)(dian)(dian)磁能量(liang)轉換的一大(da)類電(dian)(dian)(dian)工產(chan)品。在(zai)抽(chou)查過程(cheng)中，發現(xian)了大(da)量(liang)的不合(he)格(ge)產(chan)品，這些劣質產(chan)品給(gei)電(dian)(dian)(dian)力(li)系統正(zheng)常(chang)運行(xing)埋下諸多(duo)隱患。

1、標(biao)志不合(he)格(ge)的電線電纜。標(biao)志是電線電纜使用識(shi)別(bie)產(chan)品基(ji)本信(xin)息的主要途徑，根(gen)據標(biao)準規(gui)定標(biao)志的主要內容是：產(chan)品型號、規(gui)格(ge)、標(biao)準號、廠(chang)名(ming)、產(chan)地等在(zai)一定的標(biao)示間距內，當標(biao)志不合(he)格(ge)時，會(hui)造(zao)成(cheng)施工人(ren)員識(shi)別(bie)錯誤，嚴重時會(hui)引(yin)發電氣事故。

2、結(jie)構尺(chi)寸不合格的電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。結(jie)構尺(chi)寸的主(zhu)要問題是護(hu)套(tao)厚(hou)度，絕緣(yuan)(yuan)厚(hou)度，當(dang)電(dian)(dian)纜(lan)的護(hu)套(tao)和絕緣(yuan)(yuan)厚(hou)度不達標時(shi)，致使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)耐電(dian)(dian)氣(qi)強(qiang)度會嚴重降低，導致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的使用壽命縮(suo)短，嚴重時(shi)可導致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)被(bei)擊穿，絕緣(yuan)(yuan)（護(hu)套(tao)）層起不到正(zheng)常保(bao)護(hu)作(zuo)用，從而發生電(dian)(dian)氣(qi)短路和火災等現象。

3、護套式(shi)絕緣老化前的抗張(zhang)強度(du)、伸長率合格的電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。絕緣護套老化前的抗張(zhang)強度(du)、伸長率不合格直接大大縮短電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的工作(zuo)用(yong)壽命，而且在施(shi)工或在長時間通電(dian)(dian)且溫度(du)較高(gao)的環境中(zhong)，極易出現絕緣體斷裂，致(zhi)使帶電(dian)(dian)導體裸露，發生能觸電(dian)(dian)式(shi)短路危(wei)險。其不合格的主要原因是(shi)使用(yong)了再生料生產，以降(jiang)低產品成本，二(er)是(shi)不具(ju)備生產資格小型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)阻不合(he)格(ge)的(de)(de)電(dian)(dian)線(xian)。導(dao)體(ti)(ti)電(dian)(dian)阻主要(yao)是考核電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)材料(liao)以及(ji)截(jie)面(mian)是否符合(he)的(de)(de)重要(yao)指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)阻超(chao)標(biao)時，就增大了電(dian)(dian)流(liu)在線(xian)路上(shang)通(tong)過時的(de)(de)損耗，加劇了電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)阻不合(he)格(ge)的(de)(de)原因，主要(yao)進(jin)企業為了降低成本，將占原材料(liao)成本80%的(de)(de)銅(tong)材縮水，要(yao)么(me)降低導(dao)體(ti)(ti)的(de)(de)截(jie)面(mian)積，要(yao)么(me)使用(yong)含雜質過高(gao)的(de)(de)再生(sheng)銅(tong)，這樣致使電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)阻嚴重超(chao)標(biao)，在使用(yong)過程中除易引發火(huo)災，還會加速包覆在電(dian)(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電(dian)線電(dian)纜的過程中，消(xiao)費(fei)者(zhe)應注意以下(xia)幾個事(shi)

第一、要(yao)觀察電線的外(wai)觀。合格產品的絕(jue)緣（護(hu)套）層柔軟、有(you)韌性和伸縮(suo)性、表(biao)面(mian)層緊密、光滑、無粗糙感。如果(guo)包裹電線的塑料很容易被剝去，則存在塑料強度不夠的問題。

第(di)二、要看電線(xian)的(de)截(jie)面(mian)。合格(ge)產品的(de)銅芯(xin)或(huo)鋁芯(xin)表(biao)面(mian)應該具有金屬光澤，表(biao)面(mian)發(fa)(fa)黑的(de)銅或(huo)表(biao)面(mian)發(fa)(fa)白的(de)鋁說明已(yi)被氧化。

第(di)三、在購買電線(xian)時應(ying)注意(yi)查看質量(liang)合格證書。如果電線(xian)的(de)質量(liang)合格，那么其電線(xian)質量(liang)應(ying)該(gai)也受過檢(jian)驗，不會有太(tai)大的(de)問題。

沈陽凱(kai)鵬電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制造有限公(gong)司隸屬凱(kai)鵬集團下(xia)屬子(zi)公(gong)司，專門(men)從(cong)事(shi)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發(fa)、生產(chan)制造，是全國頗具(ju)實(shi)力的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠家(jia)，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡(xiang)套(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加工(gong)。小(xiao)編每天會在公(gong)司官(guan)網發(fa)布電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價格(ge)表，及時更(geng)新(xin)銅價以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠報價信息(xi)。更(geng)多有關(guan)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息(xi)可點(dian)擊(ji)公(gong)司官(guan)網szbowen.cn