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不合格電線電纜(lan)的危害

電(dian)(dian)線電(dian)(dian)纜是用于傳輸(shu)電(dian)(dian)力、傳輸(shu)信息和實(shi)現電(dian)(dian)磁能量轉換(huan)的一大(da)類電(dian)(dian)工產品(pin)。在抽(chou)查過程中(zhong)，發現了大(da)量的不合格產品(pin)，這些劣(lie)質產品(pin)給電(dian)(dian)力系(xi)統(tong)正常運行埋下諸多隱患。

1、標(biao)(biao)志不合(he)格(ge)的電(dian)線(xian)電(dian)纜。標(biao)(biao)志是電(dian)線(xian)電(dian)纜使用識(shi)(shi)別(bie)產品基本信息的主要(yao)途徑(jing)，根據標(biao)(biao)準(zhun)規定標(biao)(biao)志的主要(yao)內容是：產品型號(hao)、規格(ge)、標(biao)(biao)準(zhun)號(hao)、廠名(ming)、產地等在一(yi)定的標(biao)(biao)示間距(ju)內，當標(biao)(biao)志不合(he)格(ge)時，會造(zao)成施工(gong)人員識(shi)(shi)別(bie)錯誤，嚴重時會引發(fa)電(dian)氣事(shi)故(gu)。

2、結構(gou)尺寸(cun)不(bu)(bu)合格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。結構(gou)尺寸(cun)的(de)主要問題是護(hu)套(tao)厚(hou)度(du)，絕緣(yuan)厚(hou)度(du)，當電(dian)(dian)纜(lan)的(de)護(hu)套(tao)和(he)絕緣(yuan)厚(hou)度(du)不(bu)(bu)達標時，致使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)耐電(dian)(dian)氣強(qiang)度(du)會嚴(yan)重降低，導致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)使用壽命(ming)縮短(duan)，嚴(yan)重時可導致電(dian)(dian)線(xian)電(dian)(dian)纜(lan)被擊穿，絕緣(yuan)（護(hu)套(tao)）層起不(bu)(bu)到正(zheng)常保護(hu)作用，從(cong)而發(fa)生電(dian)(dian)氣短(duan)路和(he)火災等現象。

3、護(hu)(hu)套式絕緣(yuan)老化前的抗張強度(du)、伸長(chang)率(lv)合(he)格(ge)(ge)的電(dian)線電(dian)纜。絕緣(yuan)護(hu)(hu)套老化前的抗張強度(du)、伸長(chang)率(lv)不合(he)格(ge)(ge)直接(jie)大(da)(da)大(da)(da)縮(suo)短電(dian)線電(dian)纜的工作用壽命，而(er)且在(zai)施工或在(zai)長(chang)時間通電(dian)且溫度(du)較高的環境中，極易(yi)出(chu)現絕緣(yuan)體斷裂，致使帶(dai)電(dian)導(dao)體裸露，發生能(neng)觸電(dian)式短路危險。其不合(he)格(ge)(ge)的主要原因是使用了再(zai)生料生產(chan)(chan)，以(yi)降低產(chan)(chan)品成(cheng)本，二是不具備生產(chan)(chan)資格(ge)(ge)小型企(qi)業。

4、導(dao)體電(dian)阻(zu)不(bu)合(he)(he)格的(de)(de)電(dian)線(xian)。導(dao)體電(dian)阻(zu)主要是考核電(dian)線(xian)電(dian)纜的(de)(de)導(dao)體材料以及(ji)截面是否符合(he)(he)的(de)(de)重(zhong)要指標(biao)。當導(dao)體電(dian)阻(zu)超標(biao)時(shi)，就增大了電(dian)流(liu)在線(xian)路上通過(guo)(guo)時(shi)的(de)(de)損耗，加劇了電(dian)線(xian)電(dian)纜的(de)(de)發(fa)熱(re)。導(dao)體電(dian)阻(zu)不(bu)合(he)(he)格的(de)(de)原(yuan)因，主要進企業為了降低成(cheng)本(ben)，將占原(yuan)材料成(cheng)本(ben)80%的(de)(de)銅材縮水，要么降低導(dao)體的(de)(de)截面積，要么使用含(han)雜質過(guo)(guo)高的(de)(de)再生銅，這樣(yang)致使電(dian)線(xian)電(dian)纜的(de)(de)導(dao)體電(dian)阻(zu)嚴重(zhong)超標(biao)，在使用過(guo)(guo)程中除(chu)易引發(fa)火災(zai)，還(huan)會加速(su)包覆在電(dian)線(xian)外的(de)(de)絕緣(yuan)層的(de)(de)老化(hua)。

在購買電線(xian)電纜的(de)過程(cheng)中，消(xiao)費(fei)者應注(zhu)意以下幾個事

第一、要觀察電線的外觀。合格產品(pin)的絕緣（護套(tao)）層柔(rou)軟、有韌性(xing)和伸縮性(xing)、表面層緊密、光滑、無粗糙感。如果包裹(guo)電線的塑料很容易被剝去，則存在塑料強(qiang)度不夠的問題(ti)。

第二、要看電線的(de)(de)截面。合(he)格(ge)產品的(de)(de)銅(tong)芯或鋁芯表面應(ying)該具有金屬(shu)光澤，表面發黑的(de)(de)銅(tong)或表面發白的(de)(de)鋁說明已被氧化。

第三(san)、在購買電(dian)(dian)線(xian)時應(ying)注意查(cha)看(kan)質量(liang)合(he)格(ge)證(zheng)書(shu)。如(ru)果電(dian)(dian)線(xian)的(de)質量(liang)合(he)格(ge)，那么(me)其電(dian)(dian)線(xian)質量(liang)應(ying)該也受(shou)過檢驗，不(bu)會有太大的(de)問題(ti)。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造有限公司(si)隸屬凱鵬集(ji)團下(xia)屬子公司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發(fa)、生產制(zhi)造，是全國頗具實力的(de)沈陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營(ying)產品(pin)：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小(xiao)編每天(tian)會在(zai)公司(si)官網發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及(ji)時更新銅(tong)價(jia)以(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價(jia)信(xin)息。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)息可點擊公司(si)官網szbowen.cn