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不合(he)格電線(xian)電纜的危害(hai)

電線(xian)電纜(lan)是用(yong)于傳(chuan)輸電力、傳(chuan)輸信息(xi)和實現(xian)電磁能量轉(zhuan)換的一大(da)類電工產品(pin)(pin)。在(zai)抽查過程中，發(fa)現(xian)了大(da)量的不合(he)格(ge)產品(pin)(pin)，這(zhe)些劣(lie)質產品(pin)(pin)給(gei)電力系統正常運行(xing)埋下(xia)諸多隱(yin)患。

1、標(biao)(biao)(biao)(biao)志(zhi)不(bu)合(he)格(ge)的電線電纜。標(biao)(biao)(biao)(biao)志(zhi)是電線電纜使(shi)用(yong)識別產(chan)品基本信息的主要(yao)途徑，根據(ju)標(biao)(biao)(biao)(biao)準規(gui)定標(biao)(biao)(biao)(biao)志(zhi)的主要(yao)內(nei)容(rong)是：產(chan)品型號(hao)、規(gui)格(ge)、標(biao)(biao)(biao)(biao)準號(hao)、廠名、產(chan)地等在一定的標(biao)(biao)(biao)(biao)示間距內(nei)，當標(biao)(biao)(biao)(biao)志(zhi)不(bu)合(he)格(ge)時(shi)，會造成施工人員識別錯(cuo)誤(wu)，嚴重時(shi)會引發電氣事(shi)故。

2、結構尺寸不(bu)合格的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜。結構尺寸的(de)主要問題是(shi)護(hu)套厚(hou)度(du)(du)，絕緣厚(hou)度(du)(du)，當電(dian)(dian)纜的(de)護(hu)套和(he)絕緣厚(hou)度(du)(du)不(bu)達標時，致(zhi)(zhi)使(shi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜耐電(dian)(dian)氣(qi)強度(du)(du)會嚴重(zhong)降(jiang)低，導致(zhi)(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)使(shi)用(yong)壽命縮短，嚴重(zhong)時可(ke)導致(zhi)(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜被擊穿，絕緣（護(hu)套）層起不(bu)到正常保護(hu)作用(yong)，從而(er)發生電(dian)(dian)氣(qi)短路和(he)火(huo)災等現象。

3、護(hu)套式(shi)(shi)絕緣老(lao)化前的(de)抗張(zhang)強(qiang)度(du)、伸長(chang)率合(he)格(ge)的(de)電(dian)線電(dian)纜。絕緣護(hu)套老(lao)化前的(de)抗張(zhang)強(qiang)度(du)、伸長(chang)率不合(he)格(ge)直接大(da)大(da)縮短電(dian)線電(dian)纜的(de)工作用壽命，而且(qie)在(zai)施(shi)工或在(zai)長(chang)時間通電(dian)且(qie)溫(wen)度(du)較(jiao)高的(de)環(huan)境(jing)中，極(ji)易出現絕緣體斷(duan)裂，致使(shi)帶電(dian)導體裸露(lu)，發生能觸電(dian)式(shi)(shi)短路(lu)危(wei)險。其不合(he)格(ge)的(de)主(zhu)要原因是使(shi)用了再生料(liao)生產，以降低產品成本，二是不具備生產資(zi)格(ge)小型(xing)企業(ye)。

4、導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合格的(de)(de)(de)電(dian)(dian)(dian)線(xian)(xian)。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)主要是考核電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)(de)導(dao)(dao)體(ti)(ti)材料以(yi)及截(jie)面是否符合的(de)(de)(de)重(zhong)要指標。當導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)超標時，就增(zeng)大了電(dian)(dian)(dian)流在線(xian)(xian)路上通過時的(de)(de)(de)損耗(hao)，加劇了電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)(de)發(fa)熱。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合格的(de)(de)(de)原(yuan)因，主要進企業為(wei)了降(jiang)低成本，將(jiang)占原(yuan)材料成本80%的(de)(de)(de)銅材縮水(shui)，要么降(jiang)低導(dao)(dao)體(ti)(ti)的(de)(de)(de)截(jie)面積，要么使用含雜質過高(gao)的(de)(de)(de)再生銅，這樣致使電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜的(de)(de)(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重(zhong)超標，在使用過程中除易引發(fa)火災，還(huan)會(hui)加速包覆在電(dian)(dian)(dian)線(xian)(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老(lao)化。

在購買電(dian)線電(dian)纜的(de)過程中，消費者應注(zhu)意以下幾(ji)個事(shi)

第一(yi)、要觀察(cha)電線的外觀。合格(ge)產品的絕緣（護套）層柔軟、有韌性(xing)和(he)伸縮性(xing)、表面層緊密、光滑、無(wu)粗糙感(gan)。如果包裹電線的塑料很容(rong)易被(bei)剝(bo)去，則存在塑料強度不夠的問題。

第二、要看電線(xian)的(de)(de)截面(mian)。合格(ge)產品(pin)的(de)(de)銅(tong)芯或(huo)鋁芯表(biao)面(mian)應該具有金屬光澤，表(biao)面(mian)發黑的(de)(de)銅(tong)或(huo)表(biao)面(mian)發白的(de)(de)鋁說(shuo)明(ming)已被氧化。

第(di)三(san)、在(zai)購買電(dian)(dian)線時應(ying)注意(yi)查看質(zhi)量合(he)格證書。如果電(dian)(dian)線的質(zhi)量合(he)格，那么其電(dian)(dian)線質(zhi)量應(ying)該也受過檢(jian)驗，不會有太大(da)的問題。

沈陽(yang)(yang)凱鵬電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)制(zhi)(zhi)造有(you)限公(gong)司(si)(si)隸(li)屬(shu)凱鵬集(ji)團下屬(shu)子(zi)公(gong)司(si)(si)，專(zhuan)門(men)從事電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)研發、生產制(zhi)(zhi)造，是全國(guo)頗具實力的沈陽(yang)(yang)電(dian)(dian)(dian)纜(lan)(lan)廠(chang)家，主(zhu)營產品(pin)：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)(zhi)電(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)氣(qi)裝(zhuang)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(suan)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，以(yi)及電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)代加(jia)工。小(xiao)編(bian)每天會在公(gong)司(si)(si)官網(wang)發布電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)價格表，及時(shi)更新銅(tong)價以(yi)及電(dian)(dian)(dian)纜(lan)(lan)廠(chang)報價信(xin)息(xi)。更多有(you)關電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)信(xin)息(xi)可(ke)點擊(ji)公(gong)司(si)(si)官網(wang)szbowen.cn