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)格電(dian)線電(dian)纜的危(wei)害

電(dian)線電(dian)纜是用(yong)于傳輸電(dian)力(li)(li)、傳輸信息(xi)和實(shi)現電(dian)磁能量轉換的一大類電(dian)工產品(pin)。在(zai)抽查過程中，發現了大量的不合格(ge)產品(pin)，這(zhe)些劣質(zhi)產品(pin)給電(dian)力(li)(li)系(xi)統正常運行(xing)埋下諸多隱患(huan)。

1、標(biao)(biao)志不合(he)格(ge)的電線電纜。標(biao)(biao)志是(shi)電線電纜使用識別產品基本(ben)信息的主要途徑，根據標(biao)(biao)準規(gui)定(ding)標(biao)(biao)志的主要內容是(shi)：產品型號、規(gui)格(ge)、標(biao)(biao)準號、廠名、產地等在一定(ding)的標(biao)(biao)示間距內，當標(biao)(biao)志不合(he)格(ge)時(shi)，會(hui)造成施(shi)工人(ren)員識別錯誤，嚴(yan)重時(shi)會(hui)引發電氣事(shi)故。

2、結構尺寸不合(he)格的(de)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)。結構尺寸的(de)主要問(wen)題是護套厚度，絕緣厚度，當電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)護套和(he)絕緣厚度不達(da)標時，致使(shi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)(dian)(dian)(dian)氣強度會嚴重降低，導致電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)使(shi)用壽(shou)命縮(suo)短(duan)，嚴重時可導致電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)被擊穿，絕緣（護套）層起不到正常保護作用，從而(er)發生電(dian)(dian)(dian)(dian)(dian)(dian)氣短(duan)路和(he)火災等現象。

3、護套(tao)式絕(jue)緣老(lao)化前的(de)抗張(zhang)強度、伸長率合(he)格的(de)電(dian)線電(dian)纜(lan)(lan)。絕(jue)緣護套(tao)老(lao)化前的(de)抗張(zhang)強度、伸長率不(bu)合(he)格直接大大縮(suo)短(duan)(duan)電(dian)線電(dian)纜(lan)(lan)的(de)工作用壽命(ming)，而且在施工或在長時間通電(dian)且溫度較高的(de)環境中，極易出(chu)現絕(jue)緣體斷裂，致使帶電(dian)導體裸露，發生能(neng)觸(chu)電(dian)式短(duan)(duan)路危(wei)險(xian)。其不(bu)合(he)格的(de)主要原因是使用了再生料生產，以降低產品(pin)成(cheng)本，二是不(bu)具(ju)備生產資(zi)格小型企業。

4、導體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不(bu)合(he)格的(de)(de)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)。導體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)主(zhu)要是考核電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)導體(ti)(ti)材料以及截面是否符合(he)的(de)(de)重要指標(biao)。當導體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)超(chao)標(biao)時，就增大了(le)電(dian)(dian)(dian)(dian)(dian)流(liu)在(zai)(zai)線(xian)(xian)路上通(tong)過時的(de)(de)損耗，加(jia)劇了(le)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)發熱。導體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不(bu)合(he)格的(de)(de)原因，主(zhu)要進企(qi)業為了(le)降(jiang)低成本，將占原材料成本80%的(de)(de)銅(tong)材縮水，要么(me)降(jiang)低導體(ti)(ti)的(de)(de)截面積，要么(me)使用(yong)(yong)含雜質過高的(de)(de)再生(sheng)銅(tong)，這樣致使電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜的(de)(de)導體(ti)(ti)電(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)嚴重超(chao)標(biao)，在(zai)(zai)使用(yong)(yong)過程中除易引(yin)發火災，還會加(jia)速包覆在(zai)(zai)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)外的(de)(de)絕緣層的(de)(de)老化(hua)。

在購買電(dian)線電(dian)纜的過(guo)程中，消(xiao)費(fei)者應注意以(yi)下幾(ji)個(ge)事

第一、要觀察電(dian)線的(de)(de)(de)(de)外觀。合格產品的(de)(de)(de)(de)絕緣（護套）層(ceng)柔軟(ruan)、有韌性和伸縮性、表(biao)面層(ceng)緊密、光滑(hua)、無粗糙感(gan)。如(ru)果包裹(guo)電(dian)線的(de)(de)(de)(de)塑料(liao)很容(rong)易被剝去，則存在塑料(liao)強度(du)不夠的(de)(de)(de)(de)問題。

第(di)二、要看(kan)電線(xian)的截面(mian)。合格(ge)產品的銅(tong)(tong)芯或(huo)鋁芯表(biao)面(mian)應該具有金屬光澤，表(biao)面(mian)發黑的銅(tong)(tong)或(huo)表(biao)面(mian)發白(bai)的鋁說明已(yi)被氧(yang)化。

第三(san)、在購買電線(xian)時應(ying)(ying)注意查看質(zhi)量(liang)(liang)合格證書。如果電線(xian)的質(zhi)量(liang)(liang)合格，那么其電線(xian)質(zhi)量(liang)(liang)應(ying)(ying)該也(ye)受過(guo)檢(jian)驗，不會有太大的問題。

沈陽(yang)凱鵬電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)制(zhi)造有限公司隸屬(shu)凱鵬集團(tuan)下屬(shu)子(zi)公司，專門從事電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)研發(fa)、生產(chan)制(zhi)造，是全國頗具實力的沈陽(yang)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)廠家，主(zhu)營產(chan)品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)子(zi)計(ji)算(suan)機(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)代加工。小編每天會在公司官(guan)網發(fa)布電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)價(jia)格表，及(ji)時(shi)更新銅價(jia)以及(ji)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)廠報價(jia)信息。更多(duo)有關(guan)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)(lan)信息可點擊公司官(guan)網szbowen.cn