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不合格(ge)電線電纜的(de)危害

電線電纜是用于傳(chuan)(chuan)輸電力(li)、傳(chuan)(chuan)輸信(xin)息和實現電磁能(neng)量(liang)轉換的一大類電工產(chan)(chan)品(pin)。在(zai)抽(chou)查(cha)過程(cheng)中，發(fa)現了大量(liang)的不合格產(chan)(chan)品(pin)，這些劣質產(chan)(chan)品(pin)給電力(li)系統(tong)正(zheng)常運行埋下諸多隱患。

1、標(biao)志(zhi)不(bu)合格(ge)(ge)的(de)電線電纜。標(biao)志(zhi)是電線電纜使用識別產品基本信(xin)息的(de)主(zhu)要(yao)途徑，根據標(biao)準(zhun)規定(ding)標(biao)志(zhi)的(de)主(zhu)要(yao)內(nei)容是：產品型號、規格(ge)(ge)、標(biao)準(zhun)號、廠名(ming)、產地等在(zai)一(yi)定(ding)的(de)標(biao)示間距內(nei)，當標(biao)志(zhi)不(bu)合格(ge)(ge)時，會造成施工(gong)人員識別錯誤(wu)，嚴(yan)重時會引(yin)發電氣事(shi)故。

2、結構尺寸(cun)(cun)不合格的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)。結構尺寸(cun)(cun)的(de)主要問題是護(hu)套(tao)厚度，絕(jue)緣(yuan)(yuan)厚度，當電(dian)(dian)纜(lan)(lan)的(de)護(hu)套(tao)和絕(jue)緣(yuan)(yuan)厚度不達(da)標(biao)時(shi)，致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)耐電(dian)(dian)氣強度會嚴重降低，導致電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)的(de)使用壽(shou)命縮短，嚴重時(shi)可導致電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)被擊穿(chuan)，絕(jue)緣(yuan)(yuan)（護(hu)套(tao)）層起不到(dao)正常(chang)保護(hu)作用，從而發生電(dian)(dian)氣短路(lu)和火災等(deng)現象。

3、護(hu)套式(shi)絕(jue)(jue)緣老化前(qian)的抗(kang)張(zhang)強度(du)、伸(shen)長率(lv)合格的電(dian)線電(dian)纜。絕(jue)(jue)緣護(hu)套老化前(qian)的抗(kang)張(zhang)強度(du)、伸(shen)長率(lv)不(bu)合格直(zhi)接(jie)大大縮短電(dian)線電(dian)纜的工作用壽命，而且在施(shi)工或在長時(shi)間(jian)通(tong)電(dian)且溫度(du)較高的環境中(zhong)，極易出現絕(jue)(jue)緣體斷(duan)裂，致使(shi)帶電(dian)導體裸露，發生(sheng)能觸電(dian)式(shi)短路危險。其不(bu)合格的主要原因(yin)是(shi)使(shi)用了再生(sheng)料生(sheng)產，以(yi)降低產品成本，二是(shi)不(bu)具備生(sheng)產資格小(xiao)型企(qi)業。

4、導(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)阻不合格(ge)的(de)(de)(de)電(dian)(dian)線。導(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)阻主要(yao)(yao)(yao)是考(kao)核電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)導(dao)(dao)體(ti)(ti)(ti)材料(liao)以及截(jie)面是否符(fu)合的(de)(de)(de)重(zhong)要(yao)(yao)(yao)指標。當導(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)阻超(chao)標時(shi)，就增大了電(dian)(dian)流在線路上通(tong)過(guo)時(shi)的(de)(de)(de)損耗，加劇(ju)了電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)發(fa)熱(re)。導(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)阻不合格(ge)的(de)(de)(de)原(yuan)因(yin)，主要(yao)(yao)(yao)進企(qi)業為了降低(di)成本(ben)，將占原(yuan)材料(liao)成本(ben)80%的(de)(de)(de)銅(tong)材縮水，要(yao)(yao)(yao)么降低(di)導(dao)(dao)體(ti)(ti)(ti)的(de)(de)(de)截(jie)面積，要(yao)(yao)(yao)么使(shi)用(yong)含(han)雜質過(guo)高的(de)(de)(de)再生銅(tong)，這樣(yang)致使(shi)電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)導(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)阻嚴重(zhong)超(chao)標，在使(shi)用(yong)過(guo)程中除(chu)易(yi)引發(fa)火災，還(huan)會加速包(bao)覆在電(dian)(dian)線外的(de)(de)(de)絕(jue)緣層的(de)(de)(de)老化。

在購買電線電纜的過程中，消(xiao)費者應注(zhu)意以下幾個事

第一、要觀察電線的(de)(de)外觀。合格產品的(de)(de)絕緣（護(hu)套）層柔軟、有韌性和伸(shen)縮性、表面層緊密(mi)、光滑、無粗糙感。如果包裹電線的(de)(de)塑(su)料很(hen)容易(yi)被(bei)剝去，則(ze)存(cun)在塑(su)料強度不夠的(de)(de)問題。

第二、要看電線的(de)截面。合格產品的(de)銅(tong)(tong)芯(xin)或(huo)鋁芯(xin)表(biao)面應該具有(you)金屬光澤，表(biao)面發(fa)黑的(de)銅(tong)(tong)或(huo)表(biao)面發(fa)白的(de)鋁說明(ming)已被氧(yang)化。

第三、在(zai)購買電(dian)線(xian)(xian)時應注意查看質量(liang)合(he)格證書。如果電(dian)線(xian)(xian)的質量(liang)合(he)格，那么其電(dian)線(xian)(xian)質量(liang)應該也受過(guo)檢驗，不(bu)會有太大的問題。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造有限公司(si)(si)(si)(si)隸屬(shu)凱鵬集(ji)團下屬(shu)子(zi)公司(si)(si)(si)(si)，專門從事(shi)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研(yan)發、生產(chan)制(zhi)造，是全國頗具實力(li)的沈陽(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家(jia)，主營產(chan)品：電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小編每(mei)天會在公司(si)(si)(si)(si)官網發布(bu)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價格(ge)表(biao)，及時更(geng)(geng)新(xin)銅(tong)價以(yi)及電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價信息。更(geng)(geng)多有關(guan)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息可點擊(ji)公司(si)(si)(si)(si)官網szbowen.cn