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不合格電線(xian)電纜的危害

電(dian)(dian)線(xian)電(dian)(dian)纜(lan)是(shi)用(yong)于傳輸電(dian)(dian)力(li)、傳輸信(xin)息和實現(xian)電(dian)(dian)磁(ci)能量(liang)轉換的(de)一(yi)大類電(dian)(dian)工產品(pin)。在抽查過(guo)程中，發現(xian)了(le)大量(liang)的(de)不合格產品(pin)，這些(xie)劣質(zhi)產品(pin)給電(dian)(dian)力(li)系統正常運行埋下諸多隱患。

1、標(biao)志(zhi)不合(he)格(ge)(ge)的電線電纜。標(biao)志(zhi)是電線電纜使用識別產(chan)品(pin)基本信(xin)息(xi)的主要途(tu)徑(jing)，根據標(biao)準(zhun)規定(ding)標(biao)志(zhi)的主要內(nei)容是：產(chan)品(pin)型(xing)號、規格(ge)(ge)、標(biao)準(zhun)號、廠(chang)名、產(chan)地等在(zai)一定(ding)的標(biao)示間(jian)距內(nei)，當標(biao)志(zhi)不合(he)格(ge)(ge)時，會造成施工人員識別錯誤，嚴重時會引發電氣事故。

2、結構尺寸(cun)不合格的(de)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜。結構尺寸(cun)的(de)主(zhu)要問題(ti)是護(hu)套(tao)厚度(du)，絕緣厚度(du)，當電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)護(hu)套(tao)和(he)絕緣厚度(du)不達標時，致(zhi)使電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜耐電(dian)(dian)(dian)(dian)(dian)(dian)氣強度(du)會嚴(yan)重(zhong)降(jiang)低，導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)使用壽命縮短，嚴(yan)重(zhong)時可導致(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜被擊穿(chuan)，絕緣（護(hu)套(tao)）層起不到正常保護(hu)作用，從而發生電(dian)(dian)(dian)(dian)(dian)(dian)氣短路和(he)火災(zai)等現象。

3、護套(tao)式(shi)絕緣(yuan)老(lao)化(hua)前(qian)的(de)抗張(zhang)強(qiang)度、伸(shen)長率合格的(de)電(dian)(dian)線電(dian)(dian)纜(lan)。絕緣(yuan)護套(tao)老(lao)化(hua)前(qian)的(de)抗張(zhang)強(qiang)度、伸(shen)長率不合格直接(jie)大(da)大(da)縮(suo)短電(dian)(dian)線電(dian)(dian)纜(lan)的(de)工作用(yong)壽命，而且(qie)在施(shi)工或在長時間通電(dian)(dian)且(qie)溫度較高的(de)環境中，極易出(chu)現絕緣(yuan)體斷裂，致使帶電(dian)(dian)導體裸露，發生(sheng)(sheng)能觸電(dian)(dian)式(shi)短路危(wei)險。其不合格的(de)主要原因是使用(yong)了(le)再生(sheng)(sheng)料生(sheng)(sheng)產(chan)(chan)，以降低產(chan)(chan)品成(cheng)本，二是不具(ju)備生(sheng)(sheng)產(chan)(chan)資格小(xiao)型企業。

4、導(dao)體(ti)電(dian)(dian)阻(zu)不合格的(de)(de)(de)電(dian)(dian)線(xian)。導(dao)體(ti)電(dian)(dian)阻(zu)主要是(shi)考核電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體(ti)材料以及截面是(shi)否(fou)符合的(de)(de)(de)重要指標(biao)。當導(dao)體(ti)電(dian)(dian)阻(zu)超(chao)標(biao)時，就增大了電(dian)(dian)流(liu)在(zai)線(xian)路(lu)上(shang)通過時的(de)(de)(de)損耗，加劇了電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)發熱。導(dao)體(ti)電(dian)(dian)阻(zu)不合格的(de)(de)(de)原(yuan)(yuan)因，主要進企業(ye)為了降(jiang)低成本，將占原(yuan)(yuan)材料成本80%的(de)(de)(de)銅材縮水(shui)，要么(me)降(jiang)低導(dao)體(ti)的(de)(de)(de)截面積，要么(me)使用(yong)含雜質過高(gao)的(de)(de)(de)再生(sheng)銅，這樣致(zhi)使電(dian)(dian)線(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體(ti)電(dian)(dian)阻(zu)嚴(yan)重超(chao)標(biao)，在(zai)使用(yong)過程中(zhong)除易(yi)引發火災，還會(hui)加速包覆在(zai)電(dian)(dian)線(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老(lao)化(hua)。

在(zai)購(gou)買電線電纜的過程中，消費者應注意以(yi)下幾(ji)個事

第一、要觀察電線的(de)外觀。合格產(chan)品的(de)絕(jue)緣（護套(tao)）層柔軟、有(you)韌性(xing)和伸(shen)縮性(xing)、表(biao)面層緊(jin)密(mi)、光滑、無粗糙感。如果包裹電線的(de)塑料(liao)很容易被(bei)剝(bo)去，則(ze)存在塑料(liao)強(qiang)度不(bu)夠(gou)的(de)問題。

第(di)二(er)、要看電線的(de)截面(mian)(mian)。合(he)格產品的(de)銅芯或鋁芯表面(mian)(mian)應該(gai)具有(you)金屬光(guang)澤，表面(mian)(mian)發黑(hei)的(de)銅或表面(mian)(mian)發白(bai)的(de)鋁說明已(yi)被氧化。

第(di)三、在購買電(dian)線(xian)時應注(zhu)意查看質量(liang)(liang)合(he)格證書。如果電(dian)線(xian)的質量(liang)(liang)合(he)格，那么其電(dian)線(xian)質量(liang)(liang)應該也受過檢驗，不會有太大的問題。

沈陽(yang)(yang)凱鵬電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限公司隸屬(shu)凱鵬集團下(xia)屬(shu)子公司，專門(men)從事(shi)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產制造，是全國頗(po)具實(shi)力的沈陽(yang)(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營(ying)產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機(ji)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)(ji)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天(tian)會在公司官(guan)網(wang)發布電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)價格(ge)表，及(ji)(ji)時更(geng)(geng)新(xin)銅(tong)價以(yi)及(ji)(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信(xin)息。更(geng)(geng)多有關電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)息可點擊公司官(guan)網(wang)szbowen.cn