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不(bu)合格電線電纜的危害

電(dian)線電(dian)纜是用于傳輸電(dian)力(li)、傳輸信息和實(shi)現(xian)(xian)電(dian)磁能量(liang)轉換的一(yi)大類電(dian)工產品(pin)。在抽查過程中，發現(xian)(xian)了大量(liang)的不合(he)格(ge)產品(pin)，這些(xie)劣(lie)質(zhi)產品(pin)給電(dian)力(li)系統正常運行埋下(xia)諸多隱患。

1、標(biao)志(zhi)不合格(ge)的(de)(de)電(dian)線(xian)電(dian)纜(lan)。標(biao)志(zhi)是電(dian)線(xian)電(dian)纜(lan)使用(yong)識別產品基本信息的(de)(de)主要途徑，根據標(biao)準規定標(biao)志(zhi)的(de)(de)主要內(nei)容(rong)是：產品型號、規格(ge)、標(biao)準號、廠(chang)名、產地等在一定的(de)(de)標(biao)示間距內(nei)，當標(biao)志(zhi)不合格(ge)時(shi)，會造成(cheng)施工人員識別錯誤，嚴重時(shi)會引發電(dian)氣事故。

2、結構尺寸不(bu)(bu)合格的(de)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜。結構尺寸的(de)主(zhu)要問題是護套(tao)厚度，絕(jue)(jue)緣(yuan)厚度，當電(dian)(dian)(dian)(dian)纜的(de)護套(tao)和絕(jue)(jue)緣(yuan)厚度不(bu)(bu)達(da)標時，致使電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜耐電(dian)(dian)(dian)(dian)氣強度會嚴(yan)(yan)重降(jiang)低，導(dao)致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)使用壽命縮短，嚴(yan)(yan)重時可導(dao)致電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜被擊穿，絕(jue)(jue)緣(yuan)（護套(tao)）層起不(bu)(bu)到正常(chang)保護作(zuo)用，從而發生電(dian)(dian)(dian)(dian)氣短路和火災(zai)等現象。

3、護(hu)套式(shi)絕緣老化前(qian)的抗張強度、伸長率合(he)格(ge)的電線電纜(lan)。絕緣護(hu)套老化前(qian)的抗張強度、伸長率不合(he)格(ge)直接大(da)大(da)縮短(duan)電線電纜(lan)的工作用壽命(ming)，而且在施工或在長時間通電且溫度較高的環境(jing)中，極易出現(xian)絕緣體斷裂，致(zhi)使帶(dai)電導體裸(luo)露，發生能觸電式(shi)短(duan)路危險。其不合(he)格(ge)的主要原因是使用了再生料生產，以降低產品成本(ben)，二是不具備生產資格(ge)小型企業。

4、導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)不合(he)(he)格的(de)(de)(de)(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)主要(yao)是(shi)考(kao)核(he)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)導(dao)(dao)體(ti)材料(liao)以及截(jie)面是(shi)否符合(he)(he)的(de)(de)(de)(de)(de)重要(yao)指標。當導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)超(chao)標時，就增(zeng)大了電(dian)(dian)(dian)流在線(xian)路上通過(guo)時的(de)(de)(de)(de)(de)損耗(hao)，加劇了電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)發熱。導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)不合(he)(he)格的(de)(de)(de)(de)(de)原因，主要(yao)進企業為了降低成本(ben)，將占原材料(liao)成本(ben)80%的(de)(de)(de)(de)(de)銅材縮(suo)水(shui)，要(yao)么(me)降低導(dao)(dao)體(ti)的(de)(de)(de)(de)(de)截(jie)面積(ji)，要(yao)么(me)使用含雜質過(guo)高(gao)的(de)(de)(de)(de)(de)再(zai)生銅，這(zhe)樣致使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)(de)(de)(de)導(dao)(dao)體(ti)電(dian)(dian)(dian)阻(zu)嚴(yan)重超(chao)標，在使用過(guo)程中(zhong)除易引發火(huo)災，還會加速包覆在電(dian)(dian)(dian)線(xian)外的(de)(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)(de)老(lao)化。

在購買(mai)電線電纜的(de)過程中，消費者應(ying)注意(yi)以下幾(ji)個(ge)事

第一、要觀察電(dian)線(xian)的外(wai)觀。合格產品的絕緣（護(hu)套）層(ceng)柔軟(ruan)、有韌性(xing)和伸縮性(xing)、表面層(ceng)緊密、光滑、無(wu)粗糙感。如果包裹電(dian)線(xian)的塑料很容易(yi)被剝去(qu)，則存(cun)在塑料強(qiang)度不夠的問題(ti)。

第二(er)、要(yao)看(kan)電線的截(jie)面(mian)。合格產品(pin)的銅(tong)芯或鋁芯表(biao)面(mian)應(ying)該具(ju)有金屬(shu)光(guang)澤，表(biao)面(mian)發黑的銅(tong)或表(biao)面(mian)發白的鋁說明已被氧化。

第(di)三、在購買(mai)電(dian)(dian)線時應(ying)注(zhu)意查(cha)看(kan)質量(liang)合(he)格證書。如果電(dian)(dian)線的質量(liang)合(he)格，那(nei)么其電(dian)(dian)線質量(liang)應(ying)該也(ye)受過檢(jian)驗，不會有太大的問題。

沈陽(yang)(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制(zhi)造有限公司隸屬凱鵬集團下屬子公司，專門(men)從事電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發、生(sheng)產制(zhi)造，是全國頗具實力(li)的沈陽(yang)(yang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)家，主營(ying)產品：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(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)、電(dian)(dian)(dian)(dian)(dian)子計算機(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)及電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代(dai)加工(gong)。小編每天(tian)會在公司官(guan)網(wang)發布(bu)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價(jia)格表(biao)，及時更(geng)新(xin)銅價(jia)以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價(jia)信(xin)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)信(xin)息(xi)可點擊公司官(guan)網(wang)szbowen.cn