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(he)格(ge)電線電纜(lan)的危害

電(dian)線電(dian)纜是用于傳輸電(dian)力(li)、傳輸信(xin)息和實現電(dian)磁能量(liang)轉換的一大類電(dian)工產品(pin)。在抽查過程(cheng)中，發現了大量(liang)的不合格(ge)產品(pin)，這些劣質產品(pin)給電(dian)力(li)系統正常運行埋下諸多隱患。

1、標(biao)志不(bu)合格的(de)(de)電線電纜。標(biao)志是電線電纜使(shi)用(yong)識(shi)別產(chan)品基(ji)本信息的(de)(de)主(zhu)(zhu)要途徑，根據標(biao)準規定(ding)標(biao)志的(de)(de)主(zhu)(zhu)要內容(rong)是：產(chan)品型號(hao)、規格、標(biao)準號(hao)、廠名、產(chan)地等在一(yi)定(ding)的(de)(de)標(biao)示(shi)間(jian)距內，當標(biao)志不(bu)合格時(shi)，會(hui)造成(cheng)施工人員(yuan)識(shi)別錯誤，嚴重時(shi)會(hui)引發電氣事(shi)故。

2、結構尺寸(cun)不(bu)合格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜(lan)(lan)。結構尺寸(cun)的(de)主要問題(ti)是護套厚(hou)度，絕緣(yuan)厚(hou)度，當電(dian)(dian)纜(lan)(lan)的(de)護套和(he)絕緣(yuan)厚(hou)度不(bu)達標(biao)時，致(zhi)(zhi)使電(dian)(dian)線電(dian)(dian)纜(lan)(lan)耐電(dian)(dian)氣強度會嚴(yan)重(zhong)(zhong)降低，導致(zhi)(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)(lan)的(de)使用壽命縮短(duan)(duan)，嚴(yan)重(zhong)(zhong)時可導致(zhi)(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)(lan)被擊穿(chuan)，絕緣(yuan)（護套）層起不(bu)到(dao)正常保護作用，從而發生電(dian)(dian)氣短(duan)(duan)路和(he)火災等現象。

3、護套式(shi)絕(jue)緣老化前(qian)的抗張強度(du)、伸(shen)(shen)長率合格的電(dian)線電(dian)纜(lan)。絕(jue)緣護套老化前(qian)的抗張強度(du)、伸(shen)(shen)長率不(bu)(bu)合格直接(jie)大大縮短(duan)電(dian)線電(dian)纜(lan)的工作用(yong)(yong)壽(shou)命，而且(qie)在(zai)施工或在(zai)長時(shi)間通電(dian)且(qie)溫(wen)度(du)較高(gao)的環境中，極易出(chu)現絕(jue)緣體(ti)斷(duan)裂，致使帶電(dian)導體(ti)裸露，發生(sheng)能(neng)觸電(dian)式(shi)短(duan)路(lu)危險。其不(bu)(bu)合格的主要原(yuan)因是(shi)使用(yong)(yong)了(le)再生(sheng)料生(sheng)產，以降低產品成本，二是(shi)不(bu)(bu)具(ju)備(bei)生(sheng)產資格小(xiao)型企業。

4、導(dao)體電(dian)(dian)阻(zu)不合格的(de)(de)(de)(de)(de)電(dian)(dian)線(xian)。導(dao)體電(dian)(dian)阻(zu)主要是考核電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)(de)(de)導(dao)體材(cai)料以(yi)及截面(mian)是否符合的(de)(de)(de)(de)(de)重要指標(biao)。當導(dao)體電(dian)(dian)阻(zu)超標(biao)時，就增大了(le)電(dian)(dian)流在(zai)線(xian)路(lu)上通過(guo)時的(de)(de)(de)(de)(de)損耗，加(jia)劇了(le)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)(de)(de)發(fa)(fa)熱。導(dao)體電(dian)(dian)阻(zu)不合格的(de)(de)(de)(de)(de)原(yuan)因，主要進(jin)企業(ye)為了(le)降低成(cheng)本(ben)(ben)，將占原(yuan)材(cai)料成(cheng)本(ben)(ben)80%的(de)(de)(de)(de)(de)銅材(cai)縮水，要么(me)降低導(dao)體的(de)(de)(de)(de)(de)截面(mian)積，要么(me)使用(yong)含(han)雜質過(guo)高(gao)的(de)(de)(de)(de)(de)再生銅，這樣致使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)(de)(de)導(dao)體電(dian)(dian)阻(zu)嚴(yan)重超標(biao)，在(zai)使用(yong)過(guo)程中(zhong)除易引發(fa)(fa)火災，還(huan)會加(jia)速包覆在(zai)電(dian)(dian)線(xian)外的(de)(de)(de)(de)(de)絕(jue)緣(yuan)層的(de)(de)(de)(de)(de)老化。

在(zai)購買電線電纜的過(guo)程中，消費者應注(zhu)意以下幾個事

第一、要觀察(cha)電(dian)線的外觀。合格產品的絕(jue)緣（護套）層柔軟、有韌(ren)性和伸(shen)縮性、表面層緊(jin)密、光滑、無粗糙感。如(ru)果包裹電(dian)線的塑料(liao)很容(rong)易被剝去，則存在塑料(liao)強度不(bu)夠的問(wen)題。

第二、要看(kan)電線的(de)(de)截面。合格(ge)產品的(de)(de)銅芯(xin)或(huo)鋁芯(xin)表面應該(gai)具有金屬光(guang)澤，表面發黑的(de)(de)銅或(huo)表面發白(bai)的(de)(de)鋁說明已被氧化。

第三、在購買電(dian)線(xian)(xian)時應注意查看(kan)質量合格證(zheng)書。如(ru)果電(dian)線(xian)(xian)的(de)質量合格，那么其電(dian)線(xian)(xian)質量應該也(ye)受過檢驗，不會有太大的(de)問(wen)題。

沈陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制造(zao)(zao)有限公司(si)(si)隸(li)屬凱鵬集團下(xia)屬子公司(si)(si)，專(zhuan)門從(cong)事電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發(fa)、生產制造(zao)(zao)，是全(quan)國(guo)頗具實力的沈陽(yang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營(ying)產品：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣(qi)裝備用(yong)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計算(suan)機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代(dai)加工。小編每(mei)天會在公司(si)(si)官網(wang)發(fa)布電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表，及(ji)時更新(xin)銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信息。更多(duo)有關(guan)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息可點擊公司(si)(si)官網(wang)szbowen.cn