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不(bu)合格電線電纜的危害

電(dian)線電(dian)纜(lan)是用于傳(chuan)輸(shu)電(dian)力、傳(chuan)輸(shu)信息(xi)和(he)實(shi)現電(dian)磁能量轉換的(de)一大類電(dian)工(gong)產品。在抽查過程中，發現了大量的(de)不合格產品，這些(xie)劣質產品給電(dian)力系(xi)統(tong)正常運行(xing)埋下諸多(duo)隱(yin)患。

1、標(biao)志不(bu)合(he)格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。標(biao)志是電(dian)(dian)線(xian)電(dian)(dian)纜(lan)使用識(shi)別(bie)產(chan)品(pin)基本(ben)信(xin)息的(de)主要途徑，根據標(biao)準(zhun)規(gui)定標(biao)志的(de)主要內容是：產(chan)品(pin)型號、規(gui)格(ge)、標(biao)準(zhun)號、廠(chang)名(ming)、產(chan)地等(deng)在一定的(de)標(biao)示(shi)間距內，當標(biao)志不(bu)合(he)格(ge)時，會造成(cheng)施工人員識(shi)別(bie)錯誤，嚴(yan)重時會引發電(dian)(dian)氣(qi)事(shi)故(gu)。

2、結構(gou)尺(chi)寸(cun)(cun)不合(he)格的(de)電(dian)線(xian)電(dian)纜(lan)。結構(gou)尺(chi)寸(cun)(cun)的(de)主要問(wen)題是護(hu)(hu)套厚度，絕緣(yuan)厚度，當電(dian)纜(lan)的(de)護(hu)(hu)套和(he)絕緣(yuan)厚度不達標(biao)時，致使(shi)電(dian)線(xian)電(dian)纜(lan)耐電(dian)氣(qi)強度會嚴重(zhong)降(jiang)低(di)，導致電(dian)線(xian)電(dian)纜(lan)的(de)使(shi)用壽命縮短(duan)(duan)，嚴重(zhong)時可(ke)導致電(dian)線(xian)電(dian)纜(lan)被擊(ji)穿，絕緣(yuan)（護(hu)(hu)套）層起不到(dao)正常保護(hu)(hu)作用，從而發生電(dian)氣(qi)短(duan)(duan)路和(he)火災等現(xian)象。

3、護套式絕緣老化前的抗張強(qiang)度(du)(du)、伸長(chang)(chang)率(lv)合(he)格(ge)的電(dian)線電(dian)纜。絕緣護套老化前的抗張強(qiang)度(du)(du)、伸長(chang)(chang)率(lv)不合(he)格(ge)直(zhi)接大大縮短電(dian)線電(dian)纜的工作用(yong)壽(shou)命，而(er)且(qie)(qie)在施工或在長(chang)(chang)時間通電(dian)且(qie)(qie)溫(wen)度(du)(du)較(jiao)高的環(huan)境中，極(ji)易(yi)出現絕緣體斷裂，致(zhi)使(shi)帶電(dian)導體裸露，發(fa)生(sheng)(sheng)能觸電(dian)式短路危(wei)險。其不合(he)格(ge)的主要原(yuan)因是使(shi)用(yong)了再生(sheng)(sheng)料生(sheng)(sheng)產(chan)，以降(jiang)低(di)產(chan)品成本，二是不具備生(sheng)(sheng)產(chan)資格(ge)小型企業(ye)。

4、導(dao)(dao)體(ti)電(dian)(dian)阻不(bu)合(he)格(ge)的(de)(de)(de)電(dian)(dian)線(xian)(xian)(xian)。導(dao)(dao)體(ti)電(dian)(dian)阻主要是(shi)考核電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)(de)導(dao)(dao)體(ti)材料以及截面是(shi)否符合(he)的(de)(de)(de)重要指(zhi)標。當導(dao)(dao)體(ti)電(dian)(dian)阻超標時，就增(zeng)大了電(dian)(dian)流在(zai)線(xian)(xian)(xian)路上通(tong)過時的(de)(de)(de)損(sun)耗，加劇(ju)了電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)(de)發(fa)熱。導(dao)(dao)體(ti)電(dian)(dian)阻不(bu)合(he)格(ge)的(de)(de)(de)原因，主要進(jin)企業為了降(jiang)低成本，將占原材料成本80%的(de)(de)(de)銅材縮水(shui)，要么降(jiang)低導(dao)(dao)體(ti)的(de)(de)(de)截面積，要么使(shi)用(yong)含雜(za)質過高(gao)的(de)(de)(de)再生銅，這樣致使(shi)電(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)(de)導(dao)(dao)體(ti)電(dian)(dian)阻嚴重超標，在(zai)使(shi)用(yong)過程中除易引發(fa)火災，還會(hui)加速包覆在(zai)電(dian)(dian)線(xian)(xian)(xian)外的(de)(de)(de)絕(jue)緣層的(de)(de)(de)老(lao)化(hua)。

在(zai)購(gou)買電(dian)(dian)線(xian)電(dian)(dian)纜的過程(cheng)中，消費者應注意(yi)以(yi)下(xia)幾(ji)個事

第(di)一、要觀察電線的(de)(de)外觀。合格產品(pin)的(de)(de)絕(jue)緣(yuan)（護套）層柔軟(ruan)、有韌性和伸縮(suo)性、表面層緊密、光(guang)滑、無(wu)粗糙(cao)感(gan)。如果包裹電線的(de)(de)塑料很(hen)容(rong)易被剝(bo)去，則(ze)存在塑料強度不(bu)夠的(de)(de)問題。

第二(er)、要看電線的截面(mian)(mian)(mian)。合格產品的銅芯(xin)或鋁(lv)芯(xin)表面(mian)(mian)(mian)應該具有金屬光(guang)澤(ze)，表面(mian)(mian)(mian)發黑(hei)的銅或表面(mian)(mian)(mian)發白的鋁(lv)說(shuo)明已被氧化。

第三(san)、在購買電(dian)線(xian)時應注意查看(kan)質(zhi)量(liang)合(he)格證書(shu)。如果電(dian)線(xian)的質(zhi)量(liang)合(he)格，那么(me)其電(dian)線(xian)質(zhi)量(liang)應該也受過(guo)檢驗，不會(hui)有太(tai)大的問(wen)題。

沈陽凱鵬(peng)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)制造有限(xian)公(gong)司隸屬(shu)凱鵬(peng)集團下(xia)屬(shu)子公(gong)司，專門從事電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生產制造，是全(quan)國(guo)頗具實力的(de)沈陽電(dian)(dian)(dian)纜(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)、控制電(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)氣裝(zhuang)備(bei)用(yong)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)子計算機(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)等，以(yi)及(ji)(ji)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)代加工(gong)。小(xiao)編每天會在公(gong)司官(guan)網發(fa)布電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)價格表，及(ji)(ji)時更(geng)新銅(tong)價以(yi)及(ji)(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)廠報價信息。更(geng)多有關(guan)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)信息可點擊公(gong)司官(guan)網szbowen.cn