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不合格電線電纜的危(wei)害

電(dian)(dian)線電(dian)(dian)纜是用于(yu)傳輸電(dian)(dian)力、傳輸信息和實(shi)現電(dian)(dian)磁(ci)能(neng)量轉(zhuan)換的(de)一大類電(dian)(dian)工(gong)產(chan)品。在(zai)抽查(cha)過程中，發現了大量的(de)不合格產(chan)品，這些(xie)劣(lie)質產(chan)品給(gei)電(dian)(dian)力系統正(zheng)常運行埋下諸多隱患。

1、標(biao)(biao)志(zhi)(zhi)(zhi)不合格的電(dian)(dian)線電(dian)(dian)纜。標(biao)(biao)志(zhi)(zhi)(zhi)是(shi)電(dian)(dian)線電(dian)(dian)纜使用識別產(chan)品基本(ben)信息的主要(yao)途徑，根據(ju)標(biao)(biao)準(zhun)規定標(biao)(biao)志(zhi)(zhi)(zhi)的主要(yao)內容是(shi)：產(chan)品型(xing)號、規格、標(biao)(biao)準(zhun)號、廠名、產(chan)地等在(zai)一(yi)定的標(biao)(biao)示(shi)間距內，當(dang)標(biao)(biao)志(zhi)(zhi)(zhi)不合格時，會造成施工人員識別錯誤，嚴重時會引發(fa)電(dian)(dian)氣事故。

2、結(jie)構(gou)尺寸(cun)不合格(ge)的電(dian)線(xian)電(dian)纜(lan)(lan)。結(jie)構(gou)尺寸(cun)的主要問題是護(hu)套(tao)厚(hou)度，絕(jue)緣厚(hou)度，當電(dian)纜(lan)(lan)的護(hu)套(tao)和(he)絕(jue)緣厚(hou)度不達標(biao)時，致(zhi)使電(dian)線(xian)電(dian)纜(lan)(lan)耐電(dian)氣強度會嚴重(zhong)(zhong)降低，導(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)(lan)的使用壽命縮短，嚴重(zhong)(zhong)時可導(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)(lan)被擊穿，絕(jue)緣（護(hu)套(tao)）層起(qi)不到正常保護(hu)作(zuo)用，從(cong)而發生(sheng)電(dian)氣短路和(he)火災等現象。

3、護套式(shi)絕緣(yuan)(yuan)老化前的(de)抗張(zhang)強(qiang)度(du)、伸長率(lv)(lv)合格(ge)的(de)電線電纜(lan)。絕緣(yuan)(yuan)護套老化前的(de)抗張(zhang)強(qiang)度(du)、伸長率(lv)(lv)不合格(ge)直接大大縮短電線電纜(lan)的(de)工作(zuo)用(yong)壽命(ming)，而且在施工或在長時(shi)間通電且溫(wen)度(du)較高的(de)環境中(zhong)，極易出現絕緣(yuan)(yuan)體(ti)斷裂，致使(shi)帶電導體(ti)裸露，發生能觸(chu)電式(shi)短路危(wei)險。其(qi)不合格(ge)的(de)主要原因是使(shi)用(yong)了再生料生產，以降低產品成本，二(er)是不具備生產資格(ge)小型企業。

4、導(dao)體(ti)電(dian)(dian)(dian)阻(zu)不合格的(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)體(ti)電(dian)(dian)(dian)阻(zu)主要是考核(he)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)材(cai)料以及截面是否符合的(de)(de)重要指標(biao)。當導(dao)體(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時，就增大了電(dian)(dian)(dian)流(liu)在(zai)線(xian)路上(shang)通(tong)過(guo)時的(de)(de)損(sun)耗，加劇了電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)發(fa)熱(re)。導(dao)體(ti)電(dian)(dian)(dian)阻(zu)不合格的(de)(de)原(yuan)因，主要進企業為了降低成本，將占原(yuan)材(cai)料成本80%的(de)(de)銅(tong)材(cai)縮水，要么(me)(me)降低導(dao)體(ti)的(de)(de)截面積，要么(me)(me)使(shi)用含(han)雜質過(guo)高的(de)(de)再生銅(tong)，這樣致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)電(dian)(dian)(dian)阻(zu)嚴(yan)重超標(biao)，在(zai)使(shi)用過(guo)程中除易引發(fa)火災，還會加速包覆在(zai)電(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電(dian)線(xian)電(dian)纜的過程中(zhong)，消費者應注意(yi)以(yi)下幾個事(shi)

第(di)一、要(yao)觀(guan)察電(dian)線的(de)(de)外觀(guan)。合格產品的(de)(de)絕緣（護套）層(ceng)柔軟、有韌性和伸縮性、表面層(ceng)緊密、光(guang)滑(hua)、無粗(cu)糙感。如果包裹電(dian)線的(de)(de)塑(su)料(liao)很(hen)容易被(bei)剝去，則存在塑(su)料(liao)強度不(bu)夠的(de)(de)問題。

第二(er)、要看(kan)電線(xian)的截面(mian)。合格(ge)產品的銅芯或(huo)鋁芯表(biao)面(mian)應該具有(you)金屬光澤，表(biao)面(mian)發黑的銅或(huo)表(biao)面(mian)發白的鋁說(shuo)明已被氧化。

第(di)三、在購買(mai)電線時應(ying)注意查看質量(liang)合格證書。如(ru)果電線的質量(liang)合格，那么其電線質量(liang)應(ying)該也受(shou)過檢驗，不會(hui)有太大的問題。

沈(shen)陽(yang)凱(kai)鵬電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)制造(zao)(zao)有(you)限公司(si)隸屬凱(kai)鵬集團(tuan)下屬子(zi)公司(si)，專門從事電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)研發、生(sheng)產制造(zao)(zao)，是全(quan)國頗具實力(li)的沈(shen)陽(yang)電(dian)(dian)(dian)纜(lan)(lan)廠(chang)(chang)家，主營產品：電(dian)(dian)(dian)力(li)電(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)子(zi)計(ji)算機電(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)等(deng)，以(yi)及電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)代加工。小(xiao)編(bian)每天會在公司(si)官(guan)網發布電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)價(jia)(jia)格表，及時更新(xin)銅價(jia)(jia)以(yi)及電(dian)(dian)(dian)纜(lan)(lan)廠(chang)(chang)報(bao)價(jia)(jia)信息。更多(duo)有(you)關電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)信息可(ke)點擊(ji)公司(si)官(guan)網szbowen.cn