国产精品成人网站/两攻一受3p双龙h调教/玩弄人妻少妇500系列/人妻换人妻仑乱/国产成人一区二区三区别

不合格電線電纜的危(wei)害

電(dian)線電(dian)纜(lan)是用于傳輸電(dian)力(li)、傳輸信息和實(shi)現電(dian)磁能量轉換(huan)的一(yi)大類電(dian)工產(chan)品。在抽查(cha)過程中，發現了大量的不合格(ge)產(chan)品，這些劣(lie)質(zhi)產(chan)品給(gei)電(dian)力(li)系(xi)統正常運行埋下諸多隱(yin)患(huan)。

1、標(biao)(biao)(biao)(biao)志(zhi)不合格(ge)的電(dian)線電(dian)纜(lan)。標(biao)(biao)(biao)(biao)志(zhi)是(shi)電(dian)線電(dian)纜(lan)使用識別(bie)產品基本信息的主要途徑，根據標(biao)(biao)(biao)(biao)準規定標(biao)(biao)(biao)(biao)志(zhi)的主要內容是(shi)：產品型號、規格(ge)、標(biao)(biao)(biao)(biao)準號、廠名、產地等在(zai)一(yi)定的標(biao)(biao)(biao)(biao)示間(jian)距內，當(dang)標(biao)(biao)(biao)(biao)志(zhi)不合格(ge)時，會造成施工(gong)人員識別(bie)錯誤，嚴(yan)重時會引發電(dian)氣事(shi)故。

2、結構尺寸不(bu)合格(ge)的電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)。結構尺寸的主要問題是護套(tao)厚(hou)度(du)，絕緣厚(hou)度(du)，當電(dian)(dian)纜(lan)(lan)(lan)的護套(tao)和絕緣厚(hou)度(du)不(bu)達標(biao)時(shi)，致(zhi)(zhi)使(shi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)耐(nai)電(dian)(dian)氣(qi)(qi)強度(du)會嚴重降低，導(dao)致(zhi)(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)的使(shi)用(yong)壽命縮短(duan)，嚴重時(shi)可導(dao)致(zhi)(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)(lan)(lan)被擊(ji)穿，絕緣（護套(tao)）層(ceng)起不(bu)到正常保護作(zuo)用(yong)，從而發生電(dian)(dian)氣(qi)(qi)短(duan)路和火災等現象。

3、護(hu)套式絕緣(yuan)老化(hua)前的(de)抗張強度、伸(shen)長(chang)率合格(ge)的(de)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜。絕緣(yuan)護(hu)套老化(hua)前的(de)抗張強度、伸(shen)長(chang)率不合格(ge)直接大大縮(suo)短電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜的(de)工(gong)作用壽命，而且在施工(gong)或在長(chang)時間通(tong)電(dian)(dian)(dian)(dian)(dian)且溫(wen)度較高(gao)的(de)環境中(zhong)，極易出現絕緣(yuan)體斷裂，致(zhi)使(shi)帶電(dian)(dian)(dian)(dian)(dian)導體裸露，發生(sheng)能觸電(dian)(dian)(dian)(dian)(dian)式短路危(wei)險。其不合格(ge)的(de)主(zhu)要原因是使(shi)用了(le)再生(sheng)料生(sheng)產(chan)，以降低產(chan)品成本，二是不具備生(sheng)產(chan)資格(ge)小(xiao)型企業(ye)。

4、導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)不合(he)格的(de)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)主要是考(kao)核電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)導(dao)體(ti)材料(liao)(liao)以及截面(mian)(mian)是否符合(he)的(de)重要指(zhi)標。當導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)超標時，就增大了電(dian)(dian)(dian)(dian)流(liu)在(zai)(zai)線(xian)(xian)(xian)路上通過(guo)時的(de)損耗(hao)，加劇了電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)發熱。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)不合(he)格的(de)原因，主要進(jin)企業為了降低成本，將(jiang)占原材料(liao)(liao)成本80%的(de)銅材縮水，要么(me)降低導(dao)體(ti)的(de)截面(mian)(mian)積，要么(me)使用含雜質過(guo)高的(de)再生銅，這樣致(zhi)使電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜的(de)導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)(zu)嚴重超標，在(zai)(zai)使用過(guo)程(cheng)中除易引發火災，還(huan)會(hui)加速包覆在(zai)(zai)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)外的(de)絕(jue)緣層的(de)老化。

在(zai)購買(mai)電(dian)線電(dian)纜的過程中，消費者應注意以下(xia)幾個事

第一、要(yao)觀察電(dian)線的外觀。合格產品(pin)的絕緣（護套）層柔軟、有韌性(xing)和伸縮性(xing)、表面(mian)層緊密、光滑、無粗糙感。如(ru)果包(bao)裹電(dian)線的塑(su)料很容易(yi)被剝去，則存在塑(su)料強(qiang)度(du)不夠(gou)的問題(ti)。

第(di)二(er)、要看電線(xian)的(de)(de)截面。合格(ge)產品的(de)(de)銅芯或鋁(lv)芯表面應該具有金屬(shu)光(guang)澤，表面發(fa)黑的(de)(de)銅或表面發(fa)白的(de)(de)鋁(lv)說(shuo)明已(yi)被(bei)氧化。

第三、在購(gou)買電(dian)(dian)線(xian)時應注意查看質量合格證(zheng)書。如果電(dian)(dian)線(xian)的質量合格，那么(me)其電(dian)(dian)線(xian)質量應該(gai)也受過(guo)檢驗(yan)，不會(hui)有(you)太(tai)大的問題。

沈陽(yang)凱(kai)鵬電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制(zhi)造有(you)限公(gong)(gong)司(si)(si)隸屬凱(kai)鵬集團下屬子(zi)公(gong)(gong)司(si)(si)，專門從事電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產制(zhi)造，是全國(guo)頗(po)具實(shi)力的沈陽(yang)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以(yi)及(ji)電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代(dai)加工。小編每天會在公(gong)(gong)司(si)(si)官網發(fa)布電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表，及(ji)時更(geng)(geng)新銅價以(yi)及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信息(xi)。更(geng)(geng)多有(you)關電(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息(xi)可點擊(ji)公(gong)(gong)司(si)(si)官網szbowen.cn