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(xian)電纜的危(wei)害

電(dian)(dian)線電(dian)(dian)纜是用于傳輸電(dian)(dian)力、傳輸信息和實現(xian)電(dian)(dian)磁(ci)能量轉(zhuan)換的一大類電(dian)(dian)工產品(pin)。在(zai)抽查(cha)過程(cheng)中，發現(xian)了大量的不合格產品(pin)，這(zhe)些劣質產品(pin)給(gei)電(dian)(dian)力系(xi)統正(zheng)常運行埋下諸多隱患。

1、標志不合(he)格(ge)的(de)電(dian)線(xian)電(dian)纜。標志是電(dian)線(xian)電(dian)纜使用識(shi)別產(chan)品(pin)基本信息的(de)主(zhu)要(yao)途徑(jing)，根據標準規定(ding)標志的(de)主(zhu)要(yao)內容是：產(chan)品(pin)型號、規格(ge)、標準號、廠名、產(chan)地等在一定(ding)的(de)標示間距內，當標志不合(he)格(ge)時，會造成施工人員識(shi)別錯誤，嚴(yan)重(zhong)時會引發電(dian)氣事故。

2、結(jie)構尺(chi)寸(cun)不合格(ge)的電(dian)(dian)線(xian)電(dian)(dian)纜。結(jie)構尺(chi)寸(cun)的主要問題是護(hu)套厚度(du)(du)，絕(jue)(jue)緣(yuan)厚度(du)(du)，當電(dian)(dian)纜的護(hu)套和絕(jue)(jue)緣(yuan)厚度(du)(du)不達標時，致使(shi)(shi)電(dian)(dian)線(xian)電(dian)(dian)纜耐電(dian)(dian)氣強度(du)(du)會(hui)嚴(yan)重(zhong)(zhong)降(jiang)低(di)，導致電(dian)(dian)線(xian)電(dian)(dian)纜的使(shi)(shi)用壽(shou)命縮短(duan)，嚴(yan)重(zhong)(zhong)時可導致電(dian)(dian)線(xian)電(dian)(dian)纜被(bei)擊穿，絕(jue)(jue)緣(yuan)（護(hu)套）層起不到正常保護(hu)作(zuo)用，從而發生電(dian)(dian)氣短(duan)路和火災等現象。

3、護套(tao)式絕緣老化(hua)前的(de)(de)抗(kang)張強度(du)、伸長(chang)率合(he)格的(de)(de)電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)。絕緣護套(tao)老化(hua)前的(de)(de)抗(kang)張強度(du)、伸長(chang)率不(bu)合(he)格直接大大縮短電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)工作用壽命，而且在(zai)施工或(huo)在(zai)長(chang)時間(jian)通電(dian)(dian)(dian)(dian)且溫度(du)較(jiao)高的(de)(de)環境中，極易出現絕緣體斷裂，致使帶電(dian)(dian)(dian)(dian)導體裸露，發生(sheng)能觸(chu)電(dian)(dian)(dian)(dian)式短路(lu)危(wei)險。其不(bu)合(he)格的(de)(de)主要(yao)原因是使用了(le)再生(sheng)料生(sheng)產，以降低產品(pin)成本，二(er)是不(bu)具(ju)備(bei)生(sheng)產資格小型企(qi)業(ye)。

4、導體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)不合格(ge)的(de)(de)電(dian)(dian)(dian)(dian)線(xian)。導體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)主(zhu)要是考核電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)導體(ti)材料(liao)以及(ji)截面是否符合的(de)(de)重要指標(biao)。當導體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)超標(biao)時(shi)，就增大了電(dian)(dian)(dian)(dian)流(liu)在(zai)線(xian)路(lu)上通過(guo)(guo)時(shi)的(de)(de)損耗(hao)，加劇了電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)發(fa)熱。導體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)不合格(ge)的(de)(de)原(yuan)因，主(zhu)要進企業(ye)為(wei)了降(jiang)低成(cheng)本，將占原(yuan)材料(liao)成(cheng)本80%的(de)(de)銅(tong)材縮(suo)水，要么(me)(me)降(jiang)低導體(ti)的(de)(de)截面積，要么(me)(me)使用(yong)含雜質過(guo)(guo)高的(de)(de)再生銅(tong)，這樣(yang)致使電(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)(de)導體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)嚴重超標(biao)，在(zai)使用(yong)過(guo)(guo)程中除易引發(fa)火災，還會加速包覆在(zai)電(dian)(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化。

在購買電線電纜的過程中，消(xiao)費者應注意以下幾個事(shi)

第一、要觀(guan)察電(dian)線的(de)外觀(guan)。合格產品的(de)絕緣（護套）層柔軟、有(you)韌性(xing)和伸縮(suo)性(xing)、表面層緊密、光滑、無粗(cu)糙感。如果包(bao)裹電(dian)線的(de)塑料(liao)很容易(yi)被剝去，則存在塑料(liao)強度不(bu)夠的(de)問題。

第二、要(yao)看電線(xian)的截面(mian)。合格產(chan)品(pin)的銅芯或(huo)鋁(lv)芯表(biao)(biao)面(mian)應該具(ju)有金(jin)屬光澤，表(biao)(biao)面(mian)發(fa)黑的銅或(huo)表(biao)(biao)面(mian)發(fa)白的鋁(lv)說明(ming)已(yi)被氧化(hua)。

第三、在購買電(dian)線時應注意查看質(zhi)(zhi)量(liang)合格證書。如(ru)果(guo)電(dian)線的(de)質(zhi)(zhi)量(liang)合格，那么其(qi)電(dian)線質(zhi)(zhi)量(liang)應該也受過檢驗(yan)，不會有太大的(de)問題。

沈(shen)陽凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制(zhi)造有(you)限公司隸屬(shu)凱(kai)鵬(peng)集團下屬(shu)子公司，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發、生產制(zhi)造，是全國(guo)頗具實力(li)的沈(shen)陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠家(jia)，主營(ying)產品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣(qi)裝(zhuang)備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等，以及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加工(gong)。小編每天會在公司官(guan)網發布(bu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價(jia)格表，及時(shi)更(geng)新銅價(jia)以及電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠報(bao)價(jia)信息。更(geng)多有(you)關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息可點擊公司官(guan)網szbowen.cn