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)合格電線電纜的危害

電(dian)(dian)線(xian)電(dian)(dian)纜是用于傳輸(shu)電(dian)(dian)力、傳輸(shu)信(xin)息(xi)和實現(xian)電(dian)(dian)磁能(neng)量(liang)(liang)轉換(huan)的一大類電(dian)(dian)工產品。在(zai)抽查過(guo)程中，發現(xian)了大量(liang)(liang)的不合格(ge)產品，這些劣(lie)質(zhi)產品給(gei)電(dian)(dian)力系統(tong)正常運行埋下(xia)諸(zhu)多隱患。

1、標(biao)(biao)志(zhi)不(bu)(bu)合格的(de)(de)(de)電(dian)(dian)線電(dian)(dian)纜。標(biao)(biao)志(zhi)是(shi)電(dian)(dian)線電(dian)(dian)纜使用識別產品基本(ben)信息的(de)(de)(de)主要途徑，根據標(biao)(biao)準規定(ding)標(biao)(biao)志(zhi)的(de)(de)(de)主要內容是(shi)：產品型號、規格、標(biao)(biao)準號、廠(chang)名、產地等在一定(ding)的(de)(de)(de)標(biao)(biao)示(shi)間距內，當標(biao)(biao)志(zhi)不(bu)(bu)合格時，會造成施工人員識別錯誤(wu)，嚴重時會引發(fa)電(dian)(dian)氣(qi)事(shi)故。

2、結構尺(chi)寸不(bu)合格的(de)電(dian)(dian)線電(dian)(dian)纜(lan)。結構尺(chi)寸的(de)主要(yao)問(wen)題是護(hu)(hu)套厚度(du)(du)，絕(jue)(jue)緣(yuan)(yuan)厚度(du)(du)，當電(dian)(dian)纜(lan)的(de)護(hu)(hu)套和絕(jue)(jue)緣(yuan)(yuan)厚度(du)(du)不(bu)達標時，致(zhi)使(shi)電(dian)(dian)線電(dian)(dian)纜(lan)耐電(dian)(dian)氣(qi)強度(du)(du)會嚴(yan)重降低(di)，導(dao)致(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)的(de)使(shi)用(yong)(yong)壽命縮短，嚴(yan)重時可(ke)導(dao)致(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)被擊(ji)穿(chuan)，絕(jue)(jue)緣(yuan)(yuan)（護(hu)(hu)套）層起不(bu)到正常保(bao)護(hu)(hu)作用(yong)(yong)，從而(er)發(fa)生電(dian)(dian)氣(qi)短路(lu)和火災等現象(xiang)。

3、護套(tao)式(shi)絕(jue)(jue)緣(yuan)老(lao)(lao)化(hua)前的抗(kang)(kang)張強(qiang)度、伸長率合(he)格的電線(xian)電纜。絕(jue)(jue)緣(yuan)護套(tao)老(lao)(lao)化(hua)前的抗(kang)(kang)張強(qiang)度、伸長率不(bu)合(he)格直接大大縮短(duan)電線(xian)電纜的工作用壽命，而且在施工或在長時間(jian)通(tong)電且溫度較高的環境(jing)中，極易出現絕(jue)(jue)緣(yuan)體斷裂，致使(shi)帶(dai)電導體裸露，發生能觸電式(shi)短(duan)路危險。其(qi)不(bu)合(he)格的主要原因是使(shi)用了再生料生產(chan)(chan)，以降(jiang)低產(chan)(chan)品成本，二是不(bu)具備生產(chan)(chan)資格小型企業。

4、導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)不(bu)合(he)(he)(he)格(ge)(ge)的(de)(de)電(dian)(dian)線(xian)(xian)(xian)(xian)。導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)主要(yao)是考核電(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)(dao)體(ti)材(cai)料以及截面是否符合(he)(he)(he)的(de)(de)重要(yao)指標。當(dang)導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)超標時(shi)，就增(zeng)大了(le)電(dian)(dian)流(liu)在(zai)線(xian)(xian)(xian)(xian)路上通過時(shi)的(de)(de)損(sun)耗(hao)，加劇了(le)電(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)發熱(re)。導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)不(bu)合(he)(he)(he)格(ge)(ge)的(de)(de)原因，主要(yao)進企業為了(le)降低成本，將占原材(cai)料成本80%的(de)(de)銅材(cai)縮水，要(yao)么降低導(dao)(dao)(dao)體(ti)的(de)(de)截面積，要(yao)么使用含雜(za)質過高(gao)的(de)(de)再(zai)生(sheng)銅，這樣致使電(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)纜(lan)的(de)(de)導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)嚴重超標，在(zai)使用過程中除易(yi)引發火災，還會加速包覆在(zai)電(dian)(dian)線(xian)(xian)(xian)(xian)外的(de)(de)絕(jue)緣(yuan)層(ceng)的(de)(de)老(lao)化。

在(zai)購(gou)買電線電纜的(de)過程中，消(xiao)費者應注(zhu)意以下幾個事

第(di)一、要觀察電線(xian)(xian)的(de)外觀。合(he)格產品的(de)絕緣（護套）層柔軟、有韌性和伸縮性、表面層緊(jin)密、光(guang)滑、無(wu)粗糙感。如果包裹電線(xian)(xian)的(de)塑料很容易被剝(bo)去，則存在塑料強度不夠的(de)問題。

第二(er)、要(yao)看(kan)電線的(de)截(jie)面(mian)(mian)(mian)。合格產品的(de)銅(tong)芯或(huo)鋁芯表(biao)(biao)面(mian)(mian)(mian)應(ying)該(gai)具有(you)金屬光澤，表(biao)(biao)面(mian)(mian)(mian)發黑的(de)銅(tong)或(huo)表(biao)(biao)面(mian)(mian)(mian)發白的(de)鋁說明已(yi)被氧化。

第三、在購買電線時應注(zhu)意查看(kan)質量合(he)格證書。如果電線的(de)質量合(he)格，那么(me)其電線質量應該也受(shou)過檢驗(yan)，不會(hui)有太大(da)的(de)問題。

沈(shen)陽(yang)凱(kai)鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制(zhi)造有限公(gong)司隸屬凱(kai)鵬(peng)集團下(xia)屬子(zi)(zi)公(gong)司，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發、生產制(zhi)造，是(shi)全國頗具實力(li)(li)的沈(shen)陽(yang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠(chang)家(jia)，主營產品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)(li)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝(zhuang)備用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加工(gong)。小編每天(tian)會在公(gong)司官(guan)網發布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價(jia)格表，及(ji)時(shi)更新銅價(jia)以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠(chang)報(bao)價(jia)信(xin)息。更多(duo)有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信(xin)息可點擊(ji)公(gong)司官(guan)網szbowen.cn