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不合格電線電纜的危害

電線(xian)電纜是用于(yu)傳輸(shu)電力(li)(li)、傳輸(shu)信息和實現(xian)電磁能(neng)量(liang)轉換的一大類電工(gong)產品(pin)。在抽(chou)查過程(cheng)中，發現(xian)了大量(liang)的不(bu)合格產品(pin)，這些劣質產品(pin)給電力(li)(li)系統正常運行埋下(xia)諸多隱患。

1、標(biao)(biao)(biao)志不(bu)合(he)格的電線(xian)電纜(lan)。標(biao)(biao)(biao)志是電線(xian)電纜(lan)使用識別產(chan)品基本信(xin)息的主要(yao)途徑(jing)，根據標(biao)(biao)(biao)準規定(ding)標(biao)(biao)(biao)志的主要(yao)內容是：產(chan)品型號(hao)、規格、標(biao)(biao)(biao)準號(hao)、廠名、產(chan)地等(deng)在(zai)一(yi)定(ding)的標(biao)(biao)(biao)示間距內，當標(biao)(biao)(biao)志不(bu)合(he)格時，會造成施工人員識別錯誤，嚴重時會引(yin)發電氣事故。

2、結構(gou)尺寸不合(he)格的(de)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜。結構(gou)尺寸的(de)主要問題是護套(tao)(tao)厚(hou)度，絕緣(yuan)厚(hou)度，當電(dian)(dian)(dian)(dian)纜的(de)護套(tao)(tao)和絕緣(yuan)厚(hou)度不達標時，致使(shi)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜耐電(dian)(dian)(dian)(dian)氣強度會嚴重降低，導致電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)使(shi)用壽命(ming)縮(suo)短，嚴重時可導致電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜被擊穿，絕緣(yuan)（護套(tao)(tao)）層起不到正常保(bao)護作用，從(cong)而發生電(dian)(dian)(dian)(dian)氣短路和火災(zai)等現象。

3、護套式絕緣老(lao)化(hua)前的抗張強度、伸(shen)長率(lv)合(he)格的電線電纜(lan)。絕緣護套老(lao)化(hua)前的抗張強度、伸(shen)長率(lv)不(bu)合(he)格直接(jie)大(da)大(da)縮短電線電纜(lan)的工作(zuo)用(yong)壽命，而(er)且在(zai)施(shi)工或在(zai)長時間通電且溫度較高的環境中，極(ji)易出現絕緣體(ti)斷裂，致使(shi)帶電導體(ti)裸(luo)露，發生能(neng)觸電式短路危險(xian)。其不(bu)合(he)格的主要原因(yin)是(shi)使(shi)用(yong)了再生料生產，以降低產品成本(ben)，二是(shi)不(bu)具(ju)備生產資格小(xiao)型企業。

4、導(dao)體(ti)電(dian)(dian)(dian)(dian)阻不(bu)合格的(de)(de)電(dian)(dian)(dian)(dian)線(xian)(xian)。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻主要(yao)是(shi)(shi)考(kao)核(he)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)材(cai)(cai)料以及截(jie)面是(shi)(shi)否符合的(de)(de)重(zhong)要(yao)指標(biao)。當導(dao)體(ti)電(dian)(dian)(dian)(dian)阻超標(biao)時(shi)，就增大了電(dian)(dian)(dian)(dian)流(liu)在(zai)(zai)線(xian)(xian)路上通(tong)過時(shi)的(de)(de)損耗，加劇了電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻不(bu)合格的(de)(de)原(yuan)因，主要(yao)進(jin)企業(ye)為了降低成本(ben)，將占(zhan)原(yuan)材(cai)(cai)料成本(ben)80%的(de)(de)銅材(cai)(cai)縮水(shui)，要(yao)么(me)降低導(dao)體(ti)的(de)(de)截(jie)面積，要(yao)么(me)使用含雜質(zhi)過高的(de)(de)再(zai)生銅，這樣致使電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)導(dao)體(ti)電(dian)(dian)(dian)(dian)阻嚴(yan)重(zhong)超標(biao)，在(zai)(zai)使用過程中除易引(yin)發火災，還會加速(su)包覆在(zai)(zai)電(dian)(dian)(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電(dian)線(xian)電(dian)纜的(de)過(guo)程(cheng)中，消費者應(ying)注(zhu)意以下幾個事

第一、要觀察電(dian)線的外觀。合格產品(pin)的絕(jue)緣（護套）層柔軟、有韌性和伸縮性、表面層緊(jin)密、光滑、無(wu)粗(cu)糙(cao)感。如果包(bao)裹(guo)電(dian)線的塑(su)料很容(rong)易被剝去，則(ze)存在塑(su)料強度不夠的問題。

第二、要看(kan)電線(xian)的截面(mian)(mian)。合(he)格產品(pin)的銅(tong)芯(xin)或(huo)鋁芯(xin)表(biao)(biao)面(mian)(mian)應該具有金(jin)屬光澤(ze)，表(biao)(biao)面(mian)(mian)發黑的銅(tong)或(huo)表(biao)(biao)面(mian)(mian)發白的鋁說明已(yi)被氧化。

第三、在購(gou)買(mai)電(dian)線(xian)時應注意查看質(zhi)量合格證書。如果電(dian)線(xian)的質(zhi)量合格，那(nei)么其電(dian)線(xian)質(zhi)量應該也受過檢驗，不會有太(tai)大的問(wen)題(ti)。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)制造有限公(gong)司(si)隸屬凱鵬集團下屬子公(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)研發(fa)、生產(chan)(chan)制造，是全國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠家，主營產(chan)(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)裝備(bei)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)等，以及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)代加工。小編每天會在公(gong)司(si)官(guan)網發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)價格(ge)表，及時更(geng)新銅價以及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠報(bao)價信息(xi)。更(geng)多(duo)有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)信息(xi)可點擊公(gong)司(si)官(guan)網szbowen.cn