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(wei)害

電(dian)(dian)線電(dian)(dian)纜(lan)是用于(yu)傳輸電(dian)(dian)力(li)、傳輸信息和實現(xian)電(dian)(dian)磁能量(liang)轉換的一大類(lei)電(dian)(dian)工產品。在抽查(cha)過(guo)程(cheng)中，發現(xian)了大量(liang)的不合(he)格產品，這些劣(lie)質產品給電(dian)(dian)力(li)系統正常運行埋下(xia)諸多隱患。

1、標(biao)志(zhi)不合格(ge)的電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。標(biao)志(zhi)是電(dian)(dian)線(xian)電(dian)(dian)纜(lan)使用識別產(chan)(chan)品基本信息(xi)的主要(yao)途徑，根(gen)據標(biao)準(zhun)規定標(biao)志(zhi)的主要(yao)內容是：產(chan)(chan)品型號、規格(ge)、標(biao)準(zhun)號、廠名、產(chan)(chan)地等在一(yi)定的標(biao)示間(jian)距(ju)內，當標(biao)志(zhi)不合格(ge)時，會造成(cheng)施(shi)工人員識別錯誤，嚴重時會引發電(dian)(dian)氣(qi)事故。

2、結構尺寸(cun)(cun)不合格的電(dian)(dian)(dian)線電(dian)(dian)(dian)纜。結構尺寸(cun)(cun)的主要問題是護套厚度(du)(du)，絕緣厚度(du)(du)，當電(dian)(dian)(dian)纜的護套和(he)絕緣厚度(du)(du)不達(da)標時(shi)，致使(shi)(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜耐電(dian)(dian)(dian)氣強度(du)(du)會嚴重降(jiang)低，導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的使(shi)(shi)用壽(shou)命(ming)縮短(duan)，嚴重時(shi)可導致電(dian)(dian)(dian)線電(dian)(dian)(dian)纜被擊穿，絕緣（護套）層起不到正常保護作(zuo)用，從而發生電(dian)(dian)(dian)氣短(duan)路和(he)火災(zai)等現(xian)象。

3、護(hu)套式絕緣老化前的(de)(de)抗張強度、伸長率合(he)格的(de)(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜。絕緣護(hu)套老化前的(de)(de)抗張強度、伸長率不(bu)(bu)合(he)格直(zhi)接大大縮(suo)短(duan)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜的(de)(de)工作用壽命(ming)，而且在(zai)施工或(huo)在(zai)長時(shi)間通電(dian)(dian)(dian)且溫度較高的(de)(de)環(huan)境中(zhong)，極易出現絕緣體斷(duan)裂，致使帶(dai)電(dian)(dian)(dian)導(dao)體裸露，發生能觸電(dian)(dian)(dian)式短(duan)路危險。其不(bu)(bu)合(he)格的(de)(de)主要原因是使用了再生料生產，以(yi)降低產品成本，二是不(bu)(bu)具備生產資格小型企業。

4、導(dao)體電(dian)(dian)阻(zu)(zu)不合(he)格(ge)(ge)的(de)(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)體電(dian)(dian)阻(zu)(zu)主要(yao)是(shi)考核(he)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體材(cai)料以及(ji)截面(mian)是(shi)否(fou)符合(he)的(de)(de)(de)重要(yao)指標。當導(dao)體電(dian)(dian)阻(zu)(zu)超標時，就增(zeng)大(da)了電(dian)(dian)流在線(xian)(xian)路上通(tong)過(guo)時的(de)(de)(de)損耗(hao)，加(jia)劇了電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)發熱。導(dao)體電(dian)(dian)阻(zu)(zu)不合(he)格(ge)(ge)的(de)(de)(de)原(yuan)因，主要(yao)進(jin)企業為了降(jiang)低成本，將占原(yuan)材(cai)料成本80%的(de)(de)(de)銅材(cai)縮水，要(yao)么降(jiang)低導(dao)體的(de)(de)(de)截面(mian)積，要(yao)么使用含雜質過(guo)高的(de)(de)(de)再生(sheng)銅，這樣(yang)致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體電(dian)(dian)阻(zu)(zu)嚴(yan)重超標，在使用過(guo)程中(zhong)除易引發火(huo)災(zai)，還會加(jia)速包覆在電(dian)(dian)線(xian)(xian)外(wai)的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在購(gou)買電線(xian)電纜的過程中，消費者(zhe)應注意以(yi)下幾個事(shi)

第(di)一、要觀察電線的外觀。合格產品的絕緣（護(hu)套(tao)）層柔軟(ruan)、有韌性和伸(shen)縮性、表(biao)面層緊密(mi)、光滑、無粗糙(cao)感。如果(guo)包裹(guo)電線的塑料很(hen)容易被剝去，則存在塑料強度(du)不夠的問題。

第(di)二、要看電線的(de)截面。合格產品的(de)銅芯或鋁芯表(biao)面應該具有金屬光澤，表(biao)面發黑的(de)銅或表(biao)面發白的(de)鋁說(shuo)明已被氧化。

第(di)三、在購買電線(xian)時應注意查(cha)看(kan)質(zhi)量合(he)格(ge)證(zheng)書。如果電線(xian)的質(zhi)量合(he)格(ge)，那么其(qi)電線(xian)質(zhi)量應該也受過檢驗，不會有(you)太(tai)大的問題。

沈陽凱(kai)鵬電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)制造有限公(gong)(gong)(gong)司隸(li)屬(shu)凱(kai)鵬集團下(xia)屬(shu)子(zi)公(gong)(gong)(gong)司，專門從事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)研發、生(sheng)產制造，是全國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠家，主(zhu)營產品：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)代(dai)加工(gong)。小編(bian)每天會在(zai)公(gong)(gong)(gong)司官網(wang)發布電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)價格表，及時更新銅價以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)廠報(bao)價信(xin)(xin)息。更多(duo)有關電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)(lan)信(xin)(xin)息可點擊(ji)公(gong)(gong)(gong)司官網(wang)szbowen.cn ;