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(dian)線電(dian)纜(lan)的危害

電(dian)(dian)線電(dian)(dian)纜是用于(yu)傳輸(shu)電(dian)(dian)力(li)、傳輸(shu)信息和實現(xian)電(dian)(dian)磁能量轉(zhuan)換的(de)一(yi)大類電(dian)(dian)工產(chan)品(pin)。在抽(chou)查過程中，發現(xian)了大量的(de)不合格產(chan)品(pin)，這些劣質產(chan)品(pin)給電(dian)(dian)力(li)系統正(zheng)常運行埋下諸多隱患。

1、標(biao)(biao)(biao)志不合(he)格(ge)的電(dian)線電(dian)纜。標(biao)(biao)(biao)志是電(dian)線電(dian)纜使用識(shi)別(bie)產品基本信息(xi)的主(zhu)要途徑，根(gen)據標(biao)(biao)(biao)準規定標(biao)(biao)(biao)志的主(zhu)要內(nei)容是：產品型號、規格(ge)、標(biao)(biao)(biao)準號、廠名、產地等在(zai)一定的標(biao)(biao)(biao)示間距(ju)內(nei)，當標(biao)(biao)(biao)志不合(he)格(ge)時，會造成施工人(ren)員(yuan)識(shi)別(bie)錯誤(wu)，嚴(yan)重時會引發電(dian)氣事故。

2、結(jie)構尺寸不(bu)合格的(de)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)。結(jie)構尺寸的(de)主要問題是護套(tao)厚(hou)度(du)，絕緣厚(hou)度(du)，當電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)護套(tao)和(he)絕緣厚(hou)度(du)不(bu)達標時，致(zhi)(zhi)使電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)(dian)(dian)氣強度(du)會嚴重(zhong)(zhong)降低(di)，導(dao)致(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)使用壽命縮短(duan)，嚴重(zhong)(zhong)時可導(dao)致(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)被擊穿，絕緣（護套(tao)）層起不(bu)到正常保護作用，從而發生電(dian)(dian)(dian)(dian)(dian)(dian)氣短(duan)路和(he)火災等現(xian)象。

3、護套式絕緣老(lao)化前(qian)的(de)抗張強(qiang)度、伸(shen)長率合格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜。絕緣護套老(lao)化前(qian)的(de)抗張強(qiang)度、伸(shen)長率不(bu)合格(ge)直(zhi)接(jie)大大縮(suo)短(duan)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)工作(zuo)用壽命，而且在(zai)施(shi)工或在(zai)長時間通電(dian)(dian)且溫度較高的(de)環(huan)境中，極易出現絕緣體(ti)斷裂，致使帶電(dian)(dian)導體(ti)裸露，發生能(neng)觸(chu)電(dian)(dian)式短(duan)路危(wei)險。其不(bu)合格(ge)的(de)主要(yao)原因(yin)是使用了再生料生產(chan)，以降低產(chan)品成本，二是不(bu)具備生產(chan)資格(ge)小(xiao)型(xing)企業。

4、導(dao)體(ti)電(dian)(dian)(dian)阻(zu)不(bu)合(he)格(ge)的(de)電(dian)(dian)(dian)線(xian)(xian)(xian)。導(dao)體(ti)電(dian)(dian)(dian)阻(zu)主(zhu)要(yao)是考(kao)核電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)導(dao)體(ti)材料以(yi)及(ji)截面(mian)是否符(fu)合(he)的(de)重要(yao)指(zhi)標(biao)。當(dang)導(dao)體(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時，就增大了(le)電(dian)(dian)(dian)流在(zai)線(xian)(xian)(xian)路(lu)上通過時的(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)發(fa)熱。導(dao)體(ti)電(dian)(dian)(dian)阻(zu)不(bu)合(he)格(ge)的(de)原(yuan)因，主(zhu)要(yao)進(jin)企(qi)業為了(le)降(jiang)低(di)成本(ben)，將(jiang)占原(yuan)材料成本(ben)80%的(de)銅材縮水，要(yao)么(me)降(jiang)低(di)導(dao)體(ti)的(de)截面(mian)積(ji)，要(yao)么(me)使用含雜質(zhi)過高的(de)再生銅，這樣(yang)致使電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜(lan)的(de)導(dao)體(ti)電(dian)(dian)(dian)阻(zu)嚴(yan)重超標(biao)，在(zai)使用過程中除易引發(fa)火災，還會加速(su)包(bao)覆在(zai)電(dian)(dian)(dian)線(xian)(xian)(xian)外的(de)絕(jue)緣(yuan)層的(de)老化。

在購買電(dian)線電(dian)纜的過程中(zhong)，消費者應注(zhu)意以下幾(ji)個事(shi)

第一、要觀察電線的外觀。合格產品的絕緣（護套）層柔軟、有韌性和伸縮性、表面層緊密、光(guang)滑(hua)、無粗糙感。如果(guo)包裹電線的塑料很容易被剝去，則存在塑料強(qiang)度不夠的問題。

第二(er)、要看電線的(de)截面(mian)。合格產品的(de)銅(tong)芯或鋁(lv)芯表(biao)面(mian)應(ying)該具有(you)金屬(shu)光(guang)澤，表(biao)面(mian)發黑的(de)銅(tong)或表(biao)面(mian)發白的(de)鋁(lv)說明已被氧化。

第三、在購買(mai)電(dian)線(xian)時(shi)應注意查看質量合格證書。如(ru)果電(dian)線(xian)的質量合格，那么其(qi)電(dian)線(xian)質量應該也受過檢驗，不會有太大的問(wen)題。

沈陽凱(kai)鵬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有(you)限公司(si)(si)隸屬凱(kai)鵬集(ji)團下屬子(zi)公司(si)(si)，專門(men)從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發(fa)、生產制造，是(shi)全國頗具(ju)實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家(jia)，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天會在公司(si)(si)官網發(fa)布(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價格表(biao)，及(ji)時更新(xin)銅價以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信息。更多(duo)有(you)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息可點擊公司(si)(si)官網szbowen.cn