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來源(yuan)：常見問題 閱讀：154612 發(fa)布時(shi)間(jian)：2020-02-10
不(bu)合(he)格電線(xian)電纜的危(wei)害(hai)
電(dian)線(xian)電(dian)纜是用于傳(chuan)輸電(dian)力、傳(chuan)輸信息和實現電(dian)磁能(neng)量(liang)轉換的(de)一大(da)類電(dian)工(gong)產(chan)(chan)品(pin)。在抽查(cha)過程中，發現了大(da)量(liang)的(de)不合格產(chan)(chan)品(pin)，這(zhe)些劣質產(chan)(chan)品(pin)給電(dian)力系統正常運(yun)行埋下(xia)諸多隱患。
1、標(biao)志不合(he)格的電線電纜。標(biao)志是電線電纜使用識別產品(pin)基本(ben)信息的主要(yao)途徑，根(gen)據標(biao)準規定標(biao)志的主要(yao)內容是：產品(pin)型號(hao)、規格、標(biao)準號(hao)、廠名、產地等在一定的標(biao)示間距(ju)內，當標(biao)志不合(he)格時(shi)，會造成施工(gong)人員識別錯誤，嚴重時(shi)會引(yin)發電氣事故。
2、結(jie)構(gou)(gou)尺(chi)寸不合格(ge)的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)。結(jie)構(gou)(gou)尺(chi)寸的主(zhu)要問題是護套厚度，絕緣(yuan)厚度，當電(dian)(dian)(dian)纜(lan)(lan)的護套和(he)(he)絕緣(yuan)厚度不達(da)標時(shi)，致(zhi)(zhi)使電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)氣(qi)強度會嚴重降(jiang)低，導致(zhi)(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)的使用(yong)壽命縮短，嚴重時(shi)可(ke)導致(zhi)(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)被擊(ji)穿，絕緣(yuan)（護套）層起不到正常保護作用(yong)，從(cong)而發(fa)生電(dian)(dian)(dian)氣(qi)短路(lu)和(he)(he)火災等現象(xiang)。
3、護(hu)(hu)套式絕緣(yuan)(yuan)老化(hua)(hua)前(qian)的(de)抗張強(qiang)度、伸長率合格的(de)電(dian)線(xian)(xian)電(dian)纜(lan)。絕緣(yuan)(yuan)護(hu)(hu)套老化(hua)(hua)前(qian)的(de)抗張強(qiang)度、伸長率不(bu)合格直接(jie)大大縮短電(dian)線(xian)(xian)電(dian)纜(lan)的(de)工(gong)(gong)作用壽命，而且(qie)在施工(gong)(gong)或在長時間(jian)通電(dian)且(qie)溫度較高的(de)環境中，極易(yi)出現(xian)絕緣(yuan)(yuan)體(ti)斷裂，致使(shi)帶電(dian)導體(ti)裸(luo)露，發生(sheng)能觸電(dian)式短路危(wei)險。其不(bu)合格的(de)主要原因是使(shi)用了再生(sheng)料生(sheng)產，以降(jiang)低產品成(cheng)本(ben)，二是不(bu)具備生(sheng)產資格小型企業。
4、導(dao)(dao)體(ti)(ti)電(dian)(dian)阻不合(he)格(ge)的(de)電(dian)(dian)線(xian)。導(dao)(dao)體(ti)(ti)電(dian)(dian)阻主要(yao)是考核(he)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)導(dao)(dao)體(ti)(ti)材料(liao)(liao)以及(ji)截面是否符合(he)的(de)重(zhong)要(yao)指(zhi)標(biao)。當導(dao)(dao)體(ti)(ti)電(dian)(dian)阻超標(biao)時，就增大了(le)電(dian)(dian)流在線(xian)路上通過(guo)時的(de)損(sun)耗，加劇了(le)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)發熱。導(dao)(dao)體(ti)(ti)電(dian)(dian)阻不合(he)格(ge)的(de)原因，主要(yao)進企業為了(le)降(jiang)(jiang)低成本，將(jiang)占原材料(liao)(liao)成本80%的(de)銅材縮水，要(yao)么降(jiang)(jiang)低導(dao)(dao)體(ti)(ti)的(de)截面積，要(yao)么使用含雜(za)質過(guo)高的(de)再生銅，這樣致使電(dian)(dian)線(xian)電(dian)(dian)纜的(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)阻嚴重(zhong)超標(biao)，在使用過(guo)程(cheng)中除易引(yin)發火(huo)災，還會(hui)加速包覆在電(dian)(dian)線(xian)外的(de)絕(jue)緣層的(de)老(lao)化。
在購買(mai)電(dian)線電(dian)纜(lan)的過程中(zhong)，消費者應(ying)注意以下幾個事(shi)
第(di)一、要觀(guan)察電線(xian)的(de)外觀(guan)。合格產品的(de)絕緣(yuan)（護套）層(ceng)柔軟、有韌性和伸縮性、表面層(ceng)緊(jin)密、光滑、無粗糙(cao)感。如(ru)果包裹電線(xian)的(de)塑料很容易被剝去，則存在塑料強度不夠(gou)的(de)問題(ti)。
第二、要看電線的(de)(de)截面。合格產品(pin)的(de)(de)銅芯或鋁芯表(biao)面應該具(ju)有金屬光(guang)澤，表(biao)面發黑的(de)(de)銅或表(biao)面發白的(de)(de)鋁說明(ming)已被氧化。
第三、在購買電(dian)線(xian)時(shi)應注(zhu)意查看質量(liang)(liang)合格證書。如果(guo)電(dian)線(xian)的質量(liang)(liang)合格，那(nei)么其電(dian)線(xian)質量(liang)(liang)應該也受過檢驗，不會有太大的問題。
沈陽凱(kai)鵬(peng)電(dian)(dian)線電(dian)(dian)纜制造有(you)限公(gong)(gong)(gong)司隸屬凱(kai)鵬(peng)集(ji)團下屬子(zi)(zi)公(gong)(gong)(gong)司，專門從事電(dian)(dian)線電(dian)(dian)纜研發、生產制造，是全國頗具實力的沈陽電(dian)(dian)纜廠家，主營產品：電(dian)(dian)力電(dian)(dian)纜、控制電(dian)(dian)纜、橡套(tao)電(dian)(dian)纜、電(dian)(dian)氣裝(zhuang)備(bei)用(yong)電(dian)(dian)線電(dian)(dian)纜、電(dian)(dian)子(zi)(zi)計算機電(dian)(dian)纜、BTTZ電(dian)(dian)纜、YTTW電(dian)(dian)纜等，以及電(dian)(dian)線電(dian)(dian)纜代加工(gong)。小編(bian)每天會在(zai)公(gong)(gong)(gong)司官網發布(bu)電(dian)(dian)線電(dian)(dian)纜價格(ge)表，及時更新銅價以及電(dian)(dian)纜廠報(bao)價信(xin)(xin)息。更多有(you)關電(dian)(dian)線電(dian)(dian)纜信(xin)(xin)息可點擊公(gong)(gong)(gong)司官網szbowen.cn
上一條錫林浩特礦物絕緣電纜
