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不合(he)格(ge)電線電纜的危害

電線電纜是用于(yu)傳(chuan)輸電力、傳(chuan)輸信息和(he)實現電磁能量轉換的一大(da)類電工(gong)產品。在抽查過程中(zhong)，發現了(le)大(da)量的不(bu)合格(ge)產品，這些(xie)劣質產品給電力系統(tong)正(zheng)常運行埋下(xia)諸多隱患。

1、標(biao)(biao)志(zhi)不合格的電(dian)(dian)線電(dian)(dian)纜。標(biao)(biao)志(zhi)是(shi)電(dian)(dian)線電(dian)(dian)纜使用(yong)識別(bie)產品基本信息的主要(yao)途徑(jing)，根據標(biao)(biao)準規(gui)定(ding)標(biao)(biao)志(zhi)的主要(yao)內容是(shi)：產品型號、規(gui)格、標(biao)(biao)準號、廠名、產地等(deng)在一定(ding)的標(biao)(biao)示間距內，當標(biao)(biao)志(zhi)不合格時(shi)，會造(zao)成施工人員識別(bie)錯誤(wu)，嚴(yan)重時(shi)會引發(fa)電(dian)(dian)氣事故。

2、結構尺寸不合格的電(dian)(dian)線電(dian)(dian)纜(lan)。結構尺寸的主要問(wen)題是護(hu)(hu)套厚度(du)(du)(du)(du)，絕(jue)緣厚度(du)(du)(du)(du)，當電(dian)(dian)纜(lan)的護(hu)(hu)套和絕(jue)緣厚度(du)(du)(du)(du)不達標時，致使電(dian)(dian)線電(dian)(dian)纜(lan)耐電(dian)(dian)氣強(qiang)度(du)(du)(du)(du)會嚴(yan)重降低，導(dao)致電(dian)(dian)線電(dian)(dian)纜(lan)的使用(yong)壽命縮短，嚴(yan)重時可導(dao)致電(dian)(dian)線電(dian)(dian)纜(lan)被擊穿，絕(jue)緣（護(hu)(hu)套）層起(qi)不到正常(chang)保護(hu)(hu)作(zuo)用(yong)，從而發生電(dian)(dian)氣短路和火災等現象(xiang)。

3、護套式(shi)絕緣(yuan)老(lao)化前(qian)的(de)抗張強度、伸(shen)長(chang)率合格的(de)電(dian)線(xian)電(dian)纜。絕緣(yuan)護套老(lao)化前(qian)的(de)抗張強度、伸(shen)長(chang)率不合格直接大(da)大(da)縮(suo)短電(dian)線(xian)電(dian)纜的(de)工(gong)作用壽命，而且(qie)在施工(gong)或在長(chang)時間通電(dian)且(qie)溫度較高的(de)環(huan)境中，極易出現(xian)絕緣(yuan)體斷裂，致使帶(dai)電(dian)導體裸(luo)露，發生能觸電(dian)式(shi)短路危險。其不合格的(de)主要原因是使用了再生料生產(chan)(chan)，以降低(di)產(chan)(chan)品成本(ben)，二(er)是不具備生產(chan)(chan)資格小型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻不合格(ge)的(de)(de)電(dian)(dian)(dian)(dian)線(xian)。導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻主要(yao)是考核(he)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)體(ti)(ti)材料以及截(jie)面(mian)是否符合的(de)(de)重要(yao)指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻超標(biao)時(shi)，就(jiu)增(zeng)大了(le)電(dian)(dian)(dian)(dian)流在線(xian)路上通過時(shi)的(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)發(fa)熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻不合格(ge)的(de)(de)原(yuan)因，主要(yao)進(jin)企業為了(le)降(jiang)低成(cheng)本，將占原(yuan)材料成(cheng)本80%的(de)(de)銅材縮(suo)水(shui)，要(yao)么降(jiang)低導(dao)體(ti)(ti)的(de)(de)截(jie)面(mian)積，要(yao)么使用含雜質過高的(de)(de)再生銅，這樣致使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)(dian)阻嚴重超標(biao)，在使用過程中除易引(yin)發(fa)火災，還會加速包(bao)覆在電(dian)(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在(zai)購買電線電纜的(de)過(guo)程(cheng)中(zhong)，消費者應注意(yi)以下幾個事

第(di)一、要觀察電線(xian)的(de)外(wai)觀。合格(ge)產品(pin)的(de)絕(jue)緣（護套）層柔(rou)軟、有(you)韌性和伸縮(suo)性、表(biao)面(mian)層緊密、光滑、無粗糙感。如果(guo)包裹電線(xian)的(de)塑(su)料很容易被剝去(qu)，則存在塑(su)料強度不夠的(de)問題(ti)。

第二(er)、要看電線的(de)截面(mian)(mian)。合格(ge)產品(pin)的(de)銅芯或(huo)鋁芯表面(mian)(mian)應該具有金(jin)屬光(guang)澤(ze)，表面(mian)(mian)發(fa)(fa)黑的(de)銅或(huo)表面(mian)(mian)發(fa)(fa)白的(de)鋁說明已被氧化。

第三、在(zai)購買電線時(shi)應注意查看質(zhi)量合格證書。如果電線的質(zhi)量合格，那么其(qi)電線質(zhi)量應該也受過檢(jian)驗，不(bu)會有太大的問題。

沈(shen)陽(yang)凱鵬(peng)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造(zao)有限公(gong)司隸屬凱鵬(peng)集團下屬子公(gong)司，專門從事電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)研發(fa)、生(sheng)產(chan)制(zhi)造(zao)，是全(quan)國頗具實(shi)力(li)的沈(shen)陽(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)家，主營產(chan)品：電(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)纜(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)子計(ji)算機電(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天會在公(gong)司官網發(fa)布電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)價格表，及(ji)時更新銅價以(yi)及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)報價信(xin)息(xi)。更多(duo)有關電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)息(xi)可點擊公(gong)司官網szbowen.cn