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不合格電線電纜的(de)危害

電(dian)(dian)線電(dian)(dian)纜是用于傳(chuan)輸電(dian)(dian)力、傳(chuan)輸信息和實現(xian)電(dian)(dian)磁(ci)能量(liang)轉(zhuan)換的一大類電(dian)(dian)工產品(pin)。在抽查過程中，發(fa)現(xian)了大量(liang)的不合(he)格產品(pin)，這些劣質(zhi)產品(pin)給電(dian)(dian)力系統正常運行埋下諸多隱患。

1、標(biao)志(zhi)不(bu)(bu)合(he)格的(de)電(dian)線電(dian)纜(lan)。標(biao)志(zhi)是(shi)電(dian)線電(dian)纜(lan)使用識別產品(pin)基本信(xin)息的(de)主(zhu)要途徑，根據標(biao)準(zhun)(zhun)規定標(biao)志(zhi)的(de)主(zhu)要內容是(shi)：產品(pin)型號、規格、標(biao)準(zhun)(zhun)號、廠(chang)名、產地等(deng)在一定的(de)標(biao)示間距(ju)內，當標(biao)志(zhi)不(bu)(bu)合(he)格時，會造成施工人員識別錯誤，嚴重時會引發電(dian)氣事故。

2、結(jie)構(gou)尺寸(cun)不(bu)合格的電線電纜(lan)。結(jie)構(gou)尺寸(cun)的主要問題(ti)是護套(tao)(tao)厚度，絕(jue)緣厚度，當電纜(lan)的護套(tao)(tao)和絕(jue)緣厚度不(bu)達標時，致使(shi)電線電纜(lan)耐(nai)電氣強度會嚴重(zhong)降低，導致電線電纜(lan)的使(shi)用壽(shou)命縮短，嚴重(zhong)時可導致電線電纜(lan)被擊穿，絕(jue)緣（護套(tao)(tao)）層起不(bu)到正常保護作用，從而(er)發生電氣短路和火災等(deng)現(xian)象。

3、護套式絕緣(yuan)老(lao)化前的(de)抗(kang)張強度(du)、伸長(chang)率(lv)合格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜(lan)。絕緣(yuan)護套老(lao)化前的(de)抗(kang)張強度(du)、伸長(chang)率(lv)不(bu)(bu)合格(ge)直接大大縮短電(dian)(dian)線電(dian)(dian)纜(lan)的(de)工(gong)(gong)作用(yong)壽命，而且在施(shi)工(gong)(gong)或在長(chang)時間通電(dian)(dian)且溫度(du)較高(gao)的(de)環境中(zhong)，極易出現(xian)絕緣(yuan)體斷(duan)裂，致使帶電(dian)(dian)導體裸(luo)露，發生能觸(chu)電(dian)(dian)式短路危險(xian)。其(qi)不(bu)(bu)合格(ge)的(de)主要原因是(shi)使用(yong)了再生料生產(chan)，以降低產(chan)品成本，二是(shi)不(bu)(bu)具備生產(chan)資格(ge)小型企業。

4、導(dao)體(ti)電(dian)(dian)(dian)(dian)阻不(bu)合(he)格的(de)(de)(de)電(dian)(dian)(dian)(dian)線(xian)(xian)。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻主(zhu)(zhu)要是考核電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)導(dao)體(ti)材料以及(ji)截面是否(fou)符合(he)的(de)(de)(de)重要指標。當導(dao)體(ti)電(dian)(dian)(dian)(dian)阻超標時(shi)，就增大了電(dian)(dian)(dian)(dian)流在(zai)(zai)(zai)線(xian)(xian)路上通過時(shi)的(de)(de)(de)損耗，加(jia)劇了電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)發(fa)熱。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻不(bu)合(he)格的(de)(de)(de)原因，主(zhu)(zhu)要進企業(ye)為了降(jiang)低成本，將(jiang)占(zhan)原材料成本80%的(de)(de)(de)銅(tong)材縮(suo)水，要么降(jiang)低導(dao)體(ti)的(de)(de)(de)截面積，要么使用含(han)雜質(zhi)過高的(de)(de)(de)再生銅(tong)，這樣(yang)致(zhi)使電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)導(dao)體(ti)電(dian)(dian)(dian)(dian)阻嚴重超標，在(zai)(zai)(zai)使用過程中除易引發(fa)火災，還會(hui)加(jia)速包覆在(zai)(zai)(zai)電(dian)(dian)(dian)(dian)線(xian)(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老化(hua)。

在購(gou)買電(dian)線電(dian)纜的(de)過程(cheng)中，消費(fei)者應注意(yi)以下幾個事

第一、要觀(guan)察電線(xian)的外觀(guan)。合格產品的絕緣(yuan)（護套）層柔(rou)軟(ruan)、有韌性(xing)和伸縮性(xing)、表面層緊密、光滑、無粗糙感(gan)。如果包(bao)裹電線(xian)的塑(su)料很容易被剝去，則存在塑(su)料強度不夠的問題。

第二、要(yao)看電線的(de)截面(mian)。合格產品的(de)銅芯或鋁芯表面(mian)應該具有金屬光澤，表面(mian)發(fa)黑的(de)銅或表面(mian)發(fa)白(bai)的(de)鋁說(shuo)明已被氧化。

第三、在購買電(dian)線(xian)時應(ying)注意(yi)查(cha)看質(zhi)(zhi)量合格證(zheng)書(shu)。如果電(dian)線(xian)的質(zhi)(zhi)量合格，那么其電(dian)線(xian)質(zhi)(zhi)量應(ying)該(gai)也受過檢(jian)驗，不會有太大的問題(ti)。

沈陽凱(kai)(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造(zao)(zao)有限公(gong)司(si)隸屬凱(kai)(kai)鵬(peng)集(ji)團下屬子公(gong)司(si)，專(zhuan)門從事電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研(yan)發、生產(chan)制(zhi)造(zao)(zao)，是全國(guo)頗具實(shi)力的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主營產(chan)品(pin)：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計(ji)算機(ji)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(ji)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代(dai)加工。小編每天會在公(gong)司(si)官網(wang)發布(bu)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表，及(ji)時更新銅價(jia)以(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價(jia)信息。更多有關電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息可(ke)點擊公(gong)司(si)官網(wang)szbowen.cn