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(ge)電線電纜的危害

電線電纜是用于(yu)傳輸(shu)電力、傳輸(shu)信息和實現(xian)電磁(ci)能量(liang)轉(zhuan)換的(de)一大類電工產品(pin)。在抽(chou)查過程中，發現(xian)了大量(liang)的(de)不合格產品(pin)，這些劣質(zhi)產品(pin)給電力系統正常運行埋(mai)下諸多隱患。

1、標(biao)(biao)志(zhi)不合格(ge)(ge)的電(dian)線電(dian)纜。標(biao)(biao)志(zhi)是電(dian)線電(dian)纜使用識別(bie)產品基(ji)本信息的主要途徑(jing)，根(gen)據標(biao)(biao)準規定(ding)標(biao)(biao)志(zhi)的主要內容是：產品型號(hao)、規格(ge)(ge)、標(biao)(biao)準號(hao)、廠名(ming)、產地(di)等在一定(ding)的標(biao)(biao)示間距內，當標(biao)(biao)志(zhi)不合格(ge)(ge)時，會造成施(shi)工人員(yuan)識別(bie)錯誤，嚴重時會引發電(dian)氣(qi)事故(gu)。

2、結構尺寸(cun)不(bu)(bu)合格的(de)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。結構尺寸(cun)的(de)主要問題(ti)是(shi)護套(tao)厚度(du)，絕緣(yuan)厚度(du)，當電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)護套(tao)和(he)絕緣(yuan)厚度(du)不(bu)(bu)達標時，致使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)(dian)(dian)(dian)氣強度(du)會嚴重降低，導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)使(shi)用(yong)(yong)壽(shou)命縮短，嚴重時可導(dao)致電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)被擊(ji)穿，絕緣(yuan)（護套(tao)）層起不(bu)(bu)到正(zheng)常(chang)保(bao)護作用(yong)(yong)，從而發生(sheng)電(dian)(dian)(dian)(dian)(dian)(dian)氣短路和(he)火災等現(xian)象(xiang)。

3、護套(tao)式絕緣(yuan)老(lao)化前(qian)的抗張強度、伸長(chang)率合(he)格的電線(xian)電纜。絕緣(yuan)護套(tao)老(lao)化前(qian)的抗張強度、伸長(chang)率不合(he)格直接大(da)大(da)縮短(duan)電線(xian)電纜的工作用壽(shou)命，而(er)且(qie)在施工或在長(chang)時間通電且(qie)溫度較高的環境中，極易出(chu)現絕緣(yuan)體(ti)斷裂，致使(shi)帶電導體(ti)裸露，發生能觸(chu)電式短(duan)路危險。其不合(he)格的主要原因是(shi)使(shi)用了再(zai)生料(liao)生產(chan)(chan)，以降低產(chan)(chan)品(pin)成本，二是(shi)不具(ju)備生產(chan)(chan)資(zi)格小型企(qi)業。

4、導體電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不(bu)合(he)格的(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)。導體電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)主要是考核電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)(de)導體材(cai)(cai)料以及(ji)截面是否符合(he)的(de)(de)重(zhong)要指標(biao)。當導體電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)超標(biao)時，就增大了(le)電(dian)(dian)(dian)(dian)(dian)(dian)流在線(xian)路上通過時的(de)(de)損耗，加(jia)劇(ju)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)(de)發熱。導體電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不(bu)合(he)格的(de)(de)原(yuan)(yuan)因(yin)，主要進企業為(wei)了(le)降低成本，將占原(yuan)(yuan)材(cai)(cai)料成本80%的(de)(de)銅材(cai)(cai)縮水，要么降低導體的(de)(de)截面積，要么使用含雜質過高的(de)(de)再生銅，這(zhe)樣致使電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜的(de)(de)導體電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)嚴重(zhong)超標(biao)，在使用過程中除(chu)易(yi)引(yin)發火災，還會(hui)加(jia)速包覆在電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層(ceng)的(de)(de)老化。

在購買電線電纜的過程中，消費者應(ying)注意以下幾個(ge)事

第(di)一、要觀(guan)察電(dian)線的(de)外觀(guan)。合格產品的(de)絕(jue)緣(yuan)（護套）層柔軟、有(you)韌(ren)性(xing)和(he)伸縮性(xing)、表面層緊密、光滑、無粗糙感。如果包裹電(dian)線的(de)塑(su)料很容易(yi)被剝去，則存在塑(su)料強(qiang)度(du)不夠的(de)問題(ti)。

第二、要看電(dian)線的(de)截(jie)面。合格產品(pin)的(de)銅芯或鋁芯表面應(ying)該具有金(jin)屬光澤，表面發黑的(de)銅或表面發白(bai)的(de)鋁說(shuo)明已被氧化。

第三(san)、在購買(mai)電線時應(ying)注意查看質量合格證(zheng)書(shu)。如果電線的質量合格，那么(me)其電線質量應(ying)該也(ye)受(shou)過檢(jian)驗，不會有太大的問題(ti)。

沈(shen)(shen)陽凱(kai)鵬電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限公(gong)司隸屬凱(kai)鵬集團(tuan)下(xia)屬子(zi)公(gong)司，專門從事(shi)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研(yan)發(fa)(fa)、生產(chan)制造，是全國頗具實力(li)的(de)沈(shen)(shen)陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算(suan)機(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工(gong)。小編每天(tian)會在公(gong)司官網發(fa)(fa)布電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價(jia)格表，及時更新銅(tong)價(jia)以及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價(jia)信息。更多有關電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息可(ke)點擊公(gong)司官網szbowen.cn