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(bu)合格電線(xian)電纜的危害

電(dian)(dian)線電(dian)(dian)纜(lan)是用于(yu)傳輸電(dian)(dian)力、傳輸信息和實現(xian)電(dian)(dian)磁能(neng)量(liang)轉(zhuan)換的(de)一大類電(dian)(dian)工產(chan)品(pin)(pin)。在抽查過(guo)程中，發現(xian)了大量(liang)的(de)不合格(ge)產(chan)品(pin)(pin)，這(zhe)些劣質產(chan)品(pin)(pin)給電(dian)(dian)力系統(tong)正(zheng)常運行埋(mai)下諸多隱(yin)患。

1、標(biao)(biao)(biao)(biao)志(zhi)不合(he)格(ge)的(de)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)。標(biao)(biao)(biao)(biao)志(zhi)是電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)使(shi)用識別(bie)產品(pin)基本(ben)信息的(de)主(zhu)要途徑，根(gen)據(ju)標(biao)(biao)(biao)(biao)準規定(ding)標(biao)(biao)(biao)(biao)志(zhi)的(de)主(zhu)要內容是：產品(pin)型號、規格(ge)、標(biao)(biao)(biao)(biao)準號、廠名(ming)、產地等在(zai)一定(ding)的(de)標(biao)(biao)(biao)(biao)示間距內，當標(biao)(biao)(biao)(biao)志(zhi)不合(he)格(ge)時(shi)，會造成施工人(ren)員識別(bie)錯誤(wu)，嚴重時(shi)會引發電(dian)(dian)(dian)氣事故。

2、結構尺(chi)寸(cun)不(bu)合格的(de)(de)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)。結構尺(chi)寸(cun)的(de)(de)主要(yao)問(wen)題是(shi)護(hu)套厚度(du)(du)(du)，絕緣(yuan)(yuan)厚度(du)(du)(du)，當電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)護(hu)套和絕緣(yuan)(yuan)厚度(du)(du)(du)不(bu)達標時，致(zhi)使(shi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)耐(nai)電(dian)(dian)(dian)氣強度(du)(du)(du)會嚴重降低，導(dao)致(zhi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)使(shi)用(yong)壽命縮短，嚴重時可導(dao)致(zhi)電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)(lan)被擊穿，絕緣(yuan)(yuan)（護(hu)套）層起不(bu)到正常(chang)保護(hu)作用(yong)，從而發生電(dian)(dian)(dian)氣短路和火災等現象(xiang)。

3、護套式絕緣(yuan)老(lao)化前的(de)抗張強度(du)(du)、伸長(chang)率合(he)格(ge)的(de)電線電纜。絕緣(yuan)護套老(lao)化前的(de)抗張強度(du)(du)、伸長(chang)率不(bu)合(he)格(ge)直接(jie)大大縮短電線電纜的(de)工作(zuo)用壽命，而(er)且在施工或在長(chang)時間(jian)通電且溫度(du)(du)較高的(de)環境中，極易出現絕緣(yuan)體(ti)斷裂，致使帶(dai)電導體(ti)裸露，發生(sheng)能觸電式短路危(wei)險。其(qi)不(bu)合(he)格(ge)的(de)主要原因是使用了再生(sheng)料生(sheng)產，以降(jiang)低產品成本，二是不(bu)具(ju)備(bei)生(sheng)產資格(ge)小型企業。

4、導(dao)(dao)(dao)體電(dian)(dian)(dian)(dian)阻(zu)不(bu)合格的(de)電(dian)(dian)(dian)(dian)線(xian)。導(dao)(dao)(dao)體電(dian)(dian)(dian)(dian)阻(zu)主要(yao)是考核電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)導(dao)(dao)(dao)體材料(liao)以及截(jie)面(mian)是否符合的(de)重(zhong)要(yao)指標。當(dang)導(dao)(dao)(dao)體電(dian)(dian)(dian)(dian)阻(zu)超標時(shi)，就增大了(le)電(dian)(dian)(dian)(dian)流在線(xian)路上通過時(shi)的(de)損耗，加劇了(le)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)發(fa)熱(re)。導(dao)(dao)(dao)體電(dian)(dian)(dian)(dian)阻(zu)不(bu)合格的(de)原因，主要(yao)進企業為了(le)降低成(cheng)本，將占原材料(liao)成(cheng)本80%的(de)銅材縮水，要(yao)么降低導(dao)(dao)(dao)體的(de)截(jie)面(mian)積，要(yao)么使(shi)用含雜質過高的(de)再生銅，這樣致使(shi)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)導(dao)(dao)(dao)體電(dian)(dian)(dian)(dian)阻(zu)嚴(yan)重(zhong)超標，在使(shi)用過程中除易引(yin)發(fa)火(huo)災，還(huan)會加速包覆在電(dian)(dian)(dian)(dian)線(xian)外(wai)的(de)絕緣層的(de)老(lao)化(hua)。

在(zai)購(gou)買(mai)電線(xian)電纜的過程(cheng)中，消費(fei)者應注意以下幾個事

第(di)一、要觀察電(dian)線(xian)的(de)外觀。合(he)格產品的(de)絕緣(yuan)（護套）層柔軟、有韌性和伸(shen)縮性、表面層緊密、光(guang)滑、無粗糙感。如果包(bao)裹(guo)電(dian)線(xian)的(de)塑(su)料很容易被剝(bo)去，則存在塑(su)料強度(du)不夠的(de)問題。

第二(er)、要看電線的截面。合格產(chan)品的銅(tong)(tong)芯(xin)或鋁(lv)芯(xin)表面應該具有(you)金屬光澤，表面發(fa)黑的銅(tong)(tong)或表面發(fa)白的鋁(lv)說明已被氧化。

第三、在購買(mai)電(dian)(dian)線(xian)時應注意查看(kan)質量合格(ge)證書(shu)。如果(guo)電(dian)(dian)線(xian)的(de)質量合格(ge)，那么(me)其電(dian)(dian)線(xian)質量應該也受過檢驗，不(bu)會(hui)有(you)太大的(de)問題(ti)。

沈陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有限(xian)公司(si)(si)隸(li)屬(shu)凱(kai)鵬(peng)集團下屬(shu)子(zi)公司(si)(si)，專門(men)從事電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生產制造，是全國頗(po)具實力(li)的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營產品：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)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(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(ji)算機電(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(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每(mei)天(tian)會在公司(si)(si)官網(wang)發布電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價格表，及時更新(xin)銅價以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信息。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)點擊公司(si)(si)官網(wang)szbowen.cn