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不(bu)合格(ge)電線(xian)電纜的危害

電(dian)線電(dian)纜(lan)是(shi)用(yong)于(yu)傳輸電(dian)力、傳輸信息和(he)實現電(dian)磁能量轉(zhuan)換的一大(da)類電(dian)工產(chan)(chan)品(pin)。在抽查(cha)過程中，發(fa)現了大(da)量的不合格(ge)產(chan)(chan)品(pin)，這些劣質產(chan)(chan)品(pin)給(gei)電(dian)力系統正常(chang)運(yun)行埋下諸(zhu)多隱患。

1、標(biao)志不(bu)(bu)合(he)格的(de)電(dian)(dian)線電(dian)(dian)纜(lan)(lan)。標(biao)志是電(dian)(dian)線電(dian)(dian)纜(lan)(lan)使用識(shi)別產品(pin)基本(ben)信息的(de)主(zhu)要途徑，根據標(biao)準規定標(biao)志的(de)主(zhu)要內容是：產品(pin)型號、規格、標(biao)準號、廠名、產地等在(zai)一定的(de)標(biao)示(shi)間(jian)距內，當標(biao)志不(bu)(bu)合(he)格時(shi)，會造成施工人員(yuan)識(shi)別錯誤(wu)，嚴重時(shi)會引發電(dian)(dian)氣(qi)事故。

2、結構(gou)尺寸(cun)不合(he)格的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)。結構(gou)尺寸(cun)的主要問題(ti)是護(hu)(hu)(hu)套(tao)厚度(du)，絕(jue)(jue)緣(yuan)厚度(du)，當電(dian)(dian)(dian)纜(lan)(lan)的護(hu)(hu)(hu)套(tao)和絕(jue)(jue)緣(yuan)厚度(du)不達標時(shi)，致(zhi)使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)氣(qi)強度(du)會嚴(yan)重(zhong)降低(di)，導致(zhi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)的使(shi)用(yong)壽命縮(suo)短(duan)，嚴(yan)重(zhong)時(shi)可導致(zhi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)被擊穿(chuan)，絕(jue)(jue)緣(yuan)（護(hu)(hu)(hu)套(tao)）層(ceng)起不到正常保護(hu)(hu)(hu)作用(yong)，從而(er)發(fa)生(sheng)電(dian)(dian)(dian)氣(qi)短(duan)路和火災等現象(xiang)。

3、護套式(shi)絕緣老(lao)化前(qian)的(de)抗(kang)張(zhang)強度、伸長(chang)率(lv)合格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。絕緣護套老(lao)化前(qian)的(de)抗(kang)張(zhang)強度、伸長(chang)率(lv)不(bu)合格(ge)直接大(da)大(da)縮短(duan)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)工作(zuo)用(yong)壽命，而且在施工或在長(chang)時間通電(dian)(dian)且溫度較高的(de)環境(jing)中，極易出現絕緣體(ti)(ti)斷裂，致使帶(dai)電(dian)(dian)導體(ti)(ti)裸露(lu)，發(fa)生(sheng)能觸電(dian)(dian)式(shi)短(duan)路(lu)危險。其(qi)不(bu)合格(ge)的(de)主要原因(yin)是(shi)(shi)使用(yong)了再生(sheng)料生(sheng)產，以降(jiang)低產品成本，二是(shi)(shi)不(bu)具備生(sheng)產資格(ge)小型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不合格的電(dian)(dian)線(xian)(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)主要是考核(he)電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜的導(dao)體(ti)(ti)材料(liao)以及截面(mian)是否符(fu)合的重(zhong)要指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)阻(zu)超標(biao)時(shi)，就增大了(le)電(dian)(dian)流在(zai)線(xian)(xian)(xian)路上通過時(shi)的損耗，加劇了(le)電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜的發(fa)熱。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不合格的原(yuan)因，主要進企業為了(le)降低成本，將占原(yuan)材料(liao)成本80%的銅材縮水，要么降低導(dao)體(ti)(ti)的截面(mian)積，要么使用含雜質過高的再生銅，這(zhe)樣致使電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜的導(dao)體(ti)(ti)電(dian)(dian)阻(zu)嚴重(zhong)超標(biao)，在(zai)使用過程(cheng)中除易引(yin)發(fa)火(huo)災，還會(hui)加速包覆在(zai)電(dian)(dian)線(xian)(xian)(xian)外的絕緣層的老化。

在購(gou)買(mai)電線電纜的(de)過程中(zhong)，消費(fei)者應注意(yi)以下幾(ji)個事(shi)

第一(yi)、要觀察(cha)電線的(de)外觀。合格產(chan)品的(de)絕緣(yuan)（護(hu)套）層柔軟、有韌(ren)性(xing)(xing)和伸縮性(xing)(xing)、表(biao)面層緊密、光滑、無粗糙感。如果包裹(guo)電線的(de)塑料(liao)很容(rong)易被剝去，則存在塑料(liao)強度(du)不夠的(de)問題。

第二、要看電(dian)線的截面(mian)(mian)。合格產品的銅芯(xin)或(huo)鋁(lv)芯(xin)表面(mian)(mian)應(ying)該(gai)具(ju)有(you)金屬(shu)光(guang)澤，表面(mian)(mian)發黑的銅或(huo)表面(mian)(mian)發白的鋁(lv)說(shuo)明(ming)已被(bei)氧化。

第三、在購買電線時應(ying)注意查(cha)看質量合(he)格證(zheng)書(shu)。如果(guo)電線的(de)(de)質量合(he)格，那么其電線質量應(ying)該也(ye)受(shou)過檢驗，不會有太大的(de)(de)問(wen)題。

沈陽凱鵬(peng)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制(zhi)造有限公(gong)(gong)司隸屬(shu)凱鵬(peng)集團(tuan)下屬(shu)子公(gong)(gong)司，專門從事電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產(chan)(chan)制(zhi)造，是全國(guo)頗具(ju)實力(li)的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產(chan)(chan)品(pin)：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計(ji)算(suan)機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加(jia)工(gong)。小編每天會(hui)在公(gong)(gong)司官網(wang)發(fa)布電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格(ge)表(biao)，及(ji)(ji)時更(geng)新銅價以及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報(bao)價信息。更(geng)多有關電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息可點擊公(gong)(gong)司官網(wang)szbowen.cn