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不合格電線電纜的危害(hai)

電(dian)線(xian)電(dian)纜(lan)是(shi)用于(yu)傳輸電(dian)力(li)、傳輸信息和實現電(dian)磁(ci)能量轉(zhuan)換的一大類(lei)電(dian)工產品(pin)。在(zai)抽(chou)查過程(cheng)中，發現了大量的不合格產品(pin)，這些劣(lie)質產品(pin)給電(dian)力(li)系統正常運(yun)行埋下(xia)諸多隱患。

1、標(biao)(biao)志(zhi)不(bu)合格(ge)的(de)(de)電(dian)線電(dian)纜(lan)。標(biao)(biao)志(zhi)是電(dian)線電(dian)纜(lan)使用識別產品基本(ben)信息的(de)(de)主要途徑(jing)，根(gen)據標(biao)(biao)準(zhun)規(gui)定(ding)標(biao)(biao)志(zhi)的(de)(de)主要內(nei)容(rong)是：產品型號、規(gui)格(ge)、標(biao)(biao)準(zhun)號、廠(chang)名、產地等在(zai)一定(ding)的(de)(de)標(biao)(biao)示間距內(nei)，當標(biao)(biao)志(zhi)不(bu)合格(ge)時，會造(zao)成施(shi)工人員識別錯誤，嚴重時會引(yin)發電(dian)氣(qi)事故(gu)。

2、結構尺寸(cun)不(bu)合格的(de)(de)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)。結構尺寸(cun)的(de)(de)主要(yao)問題是護(hu)(hu)套厚度(du)(du)(du)，絕緣(yuan)厚度(du)(du)(du)，當電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)護(hu)(hu)套和(he)絕緣(yuan)厚度(du)(du)(du)不(bu)達標時(shi)，致(zhi)使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)(dian)氣強(qiang)度(du)(du)(du)會嚴重降低，導致(zhi)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)使用(yong)(yong)壽命縮短(duan)(duan)，嚴重時(shi)可(ke)導致(zhi)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)被(bei)擊穿，絕緣(yuan)（護(hu)(hu)套）層起不(bu)到正常保護(hu)(hu)作(zuo)用(yong)(yong)，從而發生電(dian)(dian)(dian)(dian)氣短(duan)(duan)路和(he)火災等現象(xiang)。

3、護套式絕緣老化前的抗張(zhang)強(qiang)度(du)、伸(shen)長率(lv)合格的電線電纜。絕緣護套老化前的抗張(zhang)強(qiang)度(du)、伸(shen)長率(lv)不(bu)合格直接大(da)大(da)縮短(duan)電線電纜的工作用(yong)壽命(ming)，而且(qie)在施工或在長時間通電且(qie)溫度(du)較高的環(huan)境(jing)中，極易出(chu)現絕緣體(ti)斷裂，致使帶(dai)電導(dao)體(ti)裸露，發生能觸電式短(duan)路(lu)危險。其不(bu)合格的主要(yao)原因是(shi)使用(yong)了再生料生產，以(yi)降(jiang)低(di)產品成(cheng)本，二是(shi)不(bu)具備生產資格小型企業(ye)。

4、導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合格(ge)(ge)的(de)(de)電(dian)(dian)(dian)線。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)主要(yao)(yao)是(shi)考核(he)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)體(ti)(ti)材(cai)料(liao)以及截(jie)面(mian)是(shi)否符合的(de)(de)重要(yao)(yao)指標(biao)。當導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時，就增(zeng)大了電(dian)(dian)(dian)流在線路(lu)上(shang)通(tong)過時的(de)(de)損耗，加劇了電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合格(ge)(ge)的(de)(de)原(yuan)因，主要(yao)(yao)進企(qi)業(ye)為了降低成本，將占原(yuan)材(cai)料(liao)成本80%的(de)(de)銅材(cai)縮水，要(yao)(yao)么(me)降低導(dao)體(ti)(ti)的(de)(de)截(jie)面(mian)積，要(yao)(yao)么(me)使(shi)用含雜質過高的(de)(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重超標(biao)，在使(shi)用過程中除易引發火災，還會加速(su)包覆在電(dian)(dian)(dian)線外的(de)(de)絕緣層的(de)(de)老化。

在購買電線電纜的過程中(zhong)，消(xiao)費(fei)者應(ying)注意以下幾個事

第一(yi)、要觀察電線的(de)外觀。合格(ge)產品(pin)的(de)絕緣(yuan)（護套(tao)）層柔軟、有韌(ren)性(xing)和伸縮性(xing)、表面(mian)層緊密、光滑、無粗糙感。如果包(bao)裹電線的(de)塑料(liao)很容易被剝去，則存在塑料(liao)強度不夠的(de)問題。

第(di)二(er)、要看電線的(de)(de)截面(mian)。合(he)格(ge)產品的(de)(de)銅(tong)(tong)芯或(huo)鋁芯表(biao)面(mian)應該具有(you)金屬光(guang)澤，表(biao)面(mian)發黑的(de)(de)銅(tong)(tong)或(huo)表(biao)面(mian)發白的(de)(de)鋁說明已被氧化。

第三(san)、在購(gou)買電(dian)線時應(ying)注意查(cha)看質量(liang)(liang)合(he)(he)格證(zheng)書。如(ru)果(guo)電(dian)線的質量(liang)(liang)合(he)(he)格，那么其電(dian)線質量(liang)(liang)應(ying)該也受過檢驗，不(bu)會有(you)太大(da)的問題。

沈陽凱鵬電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)制(zhi)造有限(xian)公(gong)司隸屬(shu)(shu)凱鵬集團下屬(shu)(shu)子公(gong)司，專(zhuan)門從事電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)研發(fa)、生(sheng)產制(zhi)造，是全國頗具實力的沈陽電(dian)(dian)(dian)纜(lan)(lan)廠家(jia)，主營產品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)子計(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)線電(dian)(dian)(dian)纜(lan)(lan)代(dai)加工。小編每天會(hui)在(zai)公(gong)司官網(wang)發(fa)布電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)價格表(biao)，及時更(geng)新銅價以(yi)及電(dian)(dian)(dian)纜(lan)(lan)廠報價信息。更(geng)多有關(guan)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)(lan)信息可點擊公(gong)司官網(wang)szbowen.cn