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不合格電(dian)線電(dian)纜(lan)的危害

電(dian)線(xian)電(dian)纜是用(yong)于(yu)傳輸電(dian)力、傳輸信息和(he)實現電(dian)磁能量(liang)轉(zhuan)換的一(yi)大類(lei)電(dian)工(gong)產(chan)品(pin)。在(zai)抽(chou)查過程中(zhong)，發現了大量(liang)的不合格產(chan)品(pin)，這些(xie)劣(lie)質產(chan)品(pin)給電(dian)力系統(tong)正常(chang)運行埋下(xia)諸(zhu)多隱患(huan)。

1、標(biao)志(zhi)不合格的(de)電線電纜(lan)。標(biao)志(zhi)是電線電纜(lan)使(shi)用識別產(chan)(chan)品基本信息的(de)主要途徑，根據標(biao)準規(gui)定標(biao)志(zhi)的(de)主要內容(rong)是：產(chan)(chan)品型(xing)號、規(gui)格、標(biao)準號、廠(chang)名、產(chan)(chan)地等在一定的(de)標(biao)示間距內，當(dang)標(biao)志(zhi)不合格時，會(hui)造成施工人員識別錯誤(wu)，嚴重時會(hui)引發電氣事故。

2、結構(gou)尺(chi)寸(cun)不合格的電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)。結構(gou)尺(chi)寸(cun)的主(zhu)要(yao)問題是護(hu)套厚(hou)度，絕緣厚(hou)度，當(dang)電(dian)(dian)(dian)(dian)纜(lan)的護(hu)套和絕緣厚(hou)度不達(da)標時，致使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)氣強(qiang)度會嚴(yan)重降低(di)，導致電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的使用壽命縮短，嚴(yan)重時可導致電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)被擊穿(chuan)，絕緣（護(hu)套）層起不到正常保護(hu)作用，從而發生電(dian)(dian)(dian)(dian)氣短路和火災等現象。

3、護套式絕緣老化前的(de)抗張(zhang)強(qiang)度(du)、伸長率合(he)格(ge)的(de)電線電纜(lan)。絕緣護套老化前的(de)抗張(zhang)強(qiang)度(du)、伸長率不合(he)格(ge)直(zhi)接(jie)大(da)大(da)縮短(duan)電線電纜(lan)的(de)工作用壽命，而且在施工或在長時(shi)間通電且溫度(du)較(jiao)高的(de)環境中，極易出現絕緣體斷(duan)裂，致使帶電導(dao)體裸露，發生能觸(chu)電式短(duan)路危險。其不合(he)格(ge)的(de)主要原因是使用了再生料生產，以降低產品成本，二是不具(ju)備生產資格(ge)小型(xing)企業。

4、導(dao)體電(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)體電(dian)(dian)(dian)阻(zu)主要(yao)是考核(he)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體材(cai)料以及截面是否(fou)符合(he)的(de)(de)(de)重要(yao)指標。當導(dao)體電(dian)(dian)(dian)阻(zu)超標時，就增大了電(dian)(dian)(dian)流在(zai)線(xian)(xian)路上通過時的(de)(de)(de)損耗，加(jia)劇了電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)發(fa)熱。導(dao)體電(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)(de)原因，主要(yao)進企業(ye)為了降(jiang)低(di)成本(ben)，將(jiang)占原材(cai)料成本(ben)80%的(de)(de)(de)銅材(cai)縮水(shui)，要(yao)么(me)降(jiang)低(di)導(dao)體的(de)(de)(de)截面積，要(yao)么(me)使(shi)用含雜質過高(gao)的(de)(de)(de)再生(sheng)銅，這樣(yang)致使(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體電(dian)(dian)(dian)阻(zu)嚴重超標，在(zai)使(shi)用過程(cheng)中(zhong)除易引(yin)發(fa)火(huo)災，還會加(jia)速包覆在(zai)電(dian)(dian)(dian)線(xian)(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在購買(mai)電線(xian)電纜的過程中，消費(fei)者應注意以下(xia)幾個(ge)事

第(di)一、要觀(guan)察電(dian)線的外觀(guan)。合格產品的絕緣（護(hu)套）層柔軟、有(you)韌性和伸縮性、表面(mian)層緊密、光滑、無(wu)粗(cu)糙感。如(ru)果(guo)包裹電(dian)線的塑料(liao)很容易被剝去(qu)，則存(cun)在塑料(liao)強度不夠的問題。

第二(er)、要看(kan)電線的截面。合格產品的銅(tong)(tong)芯或鋁芯表(biao)面應(ying)該具(ju)有(you)金屬(shu)光澤(ze)，表(biao)面發黑的銅(tong)(tong)或表(biao)面發白的鋁說(shuo)明已被氧化。

第三、在購買電線時應(ying)注意(yi)查看質量(liang)合格證書。如果電線的(de)質量(liang)合格，那么(me)其電線質量(liang)應(ying)該(gai)也受過檢驗，不會有太大的(de)問(wen)題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造(zao)有限公司(si)隸(li)屬(shu)凱鵬集團下屬(shu)子公司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研(yan)發、生(sheng)產制(zhi)造(zao)，是全(quan)國(guo)頗具實力(li)的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)家，主營產品：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣(qi)裝備用(yong)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代(dai)加(jia)工。小(xiao)編每天(tian)會在(zai)公司(si)官網發布(bu)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及時更新銅價(jia)以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價(jia)信(xin)息。更多有關電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信(xin)息可(ke)點擊公司(si)官網szbowen.cn