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害(hai)

電線電纜是(shi)用于傳輸(shu)電力、傳輸(shu)信息和實現電磁能量轉換(huan)的一大(da)類電工產(chan)品。在(zai)抽查過程中，發現了大(da)量的不(bu)合(he)格產(chan)品，這些(xie)劣質產(chan)品給電力系統正常(chang)運(yun)行埋下諸多隱患。

1、標(biao)(biao)志不合(he)(he)格(ge)的電(dian)線電(dian)纜。標(biao)(biao)志是電(dian)線電(dian)纜使用識別(bie)產(chan)品基(ji)本信(xin)息(xi)的主要途(tu)徑(jing)，根據標(biao)(biao)準規定標(biao)(biao)志的主要內容(rong)是：產(chan)品型號、規格(ge)、標(biao)(biao)準號、廠名(ming)、產(chan)地等在(zai)一(yi)定的標(biao)(biao)示間距(ju)內，當標(biao)(biao)志不合(he)(he)格(ge)時，會(hui)造成施工(gong)人員識別(bie)錯誤，嚴重時會(hui)引發電(dian)氣事故。

2、結構(gou)尺寸不合格的電(dian)(dian)線(xian)電(dian)(dian)纜。結構(gou)尺寸的主要問題是(shi)護(hu)套厚度，絕(jue)緣(yuan)(yuan)厚度，當電(dian)(dian)纜的護(hu)套和絕(jue)緣(yuan)(yuan)厚度不達標時，致(zhi)使電(dian)(dian)線(xian)電(dian)(dian)纜耐(nai)電(dian)(dian)氣強度會(hui)嚴(yan)(yan)重降低，導致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜的使用(yong)壽(shou)命縮(suo)短，嚴(yan)(yan)重時可導致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜被擊穿，絕(jue)緣(yuan)(yuan)（護(hu)套）層起(qi)不到正常保護(hu)作(zuo)用(yong)，從(cong)而發生電(dian)(dian)氣短路和火災等現(xian)象。

3、護(hu)套式絕緣(yuan)老(lao)化前(qian)(qian)的(de)抗(kang)張強(qiang)度、伸長率合格(ge)的(de)電(dian)線電(dian)纜(lan)。絕緣(yuan)護(hu)套老(lao)化前(qian)(qian)的(de)抗(kang)張強(qiang)度、伸長率不(bu)合格(ge)直接大大縮短電(dian)線電(dian)纜(lan)的(de)工作用壽命，而且(qie)在施工或(huo)在長時間(jian)通(tong)電(dian)且(qie)溫度較高的(de)環(huan)境中，極易出現絕緣(yuan)體(ti)斷裂，致使帶電(dian)導體(ti)裸露(lu)，發生能觸(chu)電(dian)式短路危(wei)險。其不(bu)合格(ge)的(de)主(zhu)要(yao)原因(yin)是使用了再(zai)生料(liao)生產，以降低產品成(cheng)本，二(er)是不(bu)具備生產資格(ge)小型企業。

4、導(dao)體電(dian)(dian)(dian)(dian)阻不合(he)(he)(he)格(ge)(ge)的(de)(de)(de)電(dian)(dian)(dian)(dian)線(xian)。導(dao)體電(dian)(dian)(dian)(dian)阻主要(yao)是考核(he)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)導(dao)體材(cai)料以(yi)及截(jie)面是否符(fu)合(he)(he)(he)的(de)(de)(de)重要(yao)指標(biao)。當導(dao)體電(dian)(dian)(dian)(dian)阻超標(biao)時，就增大了(le)電(dian)(dian)(dian)(dian)流在(zai)(zai)線(xian)路上通(tong)過時的(de)(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)發(fa)熱(re)。導(dao)體電(dian)(dian)(dian)(dian)阻不合(he)(he)(he)格(ge)(ge)的(de)(de)(de)原因，主要(yao)進企業為了(le)降低成本(ben)，將占原材(cai)料成本(ben)80%的(de)(de)(de)銅(tong)(tong)材(cai)縮水，要(yao)么降低導(dao)體的(de)(de)(de)截(jie)面積(ji)，要(yao)么使用含雜質過高的(de)(de)(de)再生銅(tong)(tong)，這樣致使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜的(de)(de)(de)導(dao)體電(dian)(dian)(dian)(dian)阻嚴重超標(biao)，在(zai)(zai)使用過程中(zhong)除易引發(fa)火災，還會加速包覆在(zai)(zai)電(dian)(dian)(dian)(dian)線(xian)外的(de)(de)(de)絕(jue)緣層的(de)(de)(de)老(lao)化。

在購(gou)買電線電纜的過程中，消(xiao)費者應(ying)注意以(yi)下幾個事(shi)

第一(yi)、要觀察電(dian)線的外觀。合格產品的絕緣(yuan)（護(hu)套）層柔軟、有(you)韌性和伸(shen)縮性、表面層緊密、光滑(hua)、無粗糙感。如果包裹電(dian)線的塑(su)料很容(rong)易被(bei)剝去，則存在塑(su)料強度不(bu)夠的問(wen)題。

第二、要看電線的截面(mian)。合格產品的銅(tong)芯(xin)(xin)或鋁(lv)芯(xin)(xin)表面(mian)應該具有金(jin)屬光(guang)澤(ze)，表面(mian)發黑(hei)的銅(tong)或表面(mian)發白的鋁(lv)說明已被氧化(hua)。

第三、在購買電(dian)線(xian)(xian)時應注(zhu)意查看質量(liang)合(he)格(ge)證(zheng)書。如果電(dian)線(xian)(xian)的(de)質量(liang)合(he)格(ge)，那么其電(dian)線(xian)(xian)質量(liang)應該也受過檢驗(yan)，不(bu)會(hui)有太(tai)大的(de)問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造有(you)限公司(si)隸屬(shu)凱鵬集團下屬(shu)子公司(si)，專門(men)從事電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)研(yan)發、生產制(zhi)造，是全國頗具實(shi)力的沈陽電(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)家，主營產品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)代(dai)加(jia)工。小編(bian)每天會在(zai)公司(si)官網發布電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)價格表(biao)，及時更(geng)新銅價以及電(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)報價信(xin)息(xi)。更(geng)多有(you)關電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)信(xin)息(xi)可(ke)點(dian)擊公司(si)官網szbowen.cn