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(dian)線(xian)電(dian)纜的危害

電線電纜是用于(yu)傳(chuan)輸電力、傳(chuan)輸信息和實現電磁能量(liang)轉換的一(yi)大類電工產品(pin)。在抽(chou)查過程中，發現了大量(liang)的不合格產品(pin)，這些劣質產品(pin)給電力系統正常運(yun)行埋下諸多(duo)隱(yin)患。

1、標志(zhi)不合(he)格的(de)電(dian)線電(dian)纜(lan)。標志(zhi)是電(dian)線電(dian)纜(lan)使用識別(bie)產(chan)品基(ji)本(ben)信息的(de)主要途徑，根據標準規(gui)定(ding)(ding)標志(zhi)的(de)主要內容是：產(chan)品型號、規(gui)格、標準號、廠名、產(chan)地等在一定(ding)(ding)的(de)標示間距內，當標志(zhi)不合(he)格時，會造成施工人員識別(bie)錯誤，嚴重(zhong)時會引發電(dian)氣(qi)事(shi)故。

2、結構尺寸(cun)不(bu)(bu)合格的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)。結構尺寸(cun)的(de)(de)主(zhu)要問(wen)題是護(hu)套厚(hou)(hou)度(du)，絕緣(yuan)厚(hou)(hou)度(du)，當電(dian)(dian)纜(lan)的(de)(de)護(hu)套和(he)絕緣(yuan)厚(hou)(hou)度(du)不(bu)(bu)達標時，致使電(dian)(dian)線電(dian)(dian)纜(lan)耐(nai)電(dian)(dian)氣(qi)強度(du)會嚴重降低，導(dao)致電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)使用壽(shou)命縮短(duan)，嚴重時可導(dao)致電(dian)(dian)線電(dian)(dian)纜(lan)被擊穿，絕緣(yuan)（護(hu)套）層起不(bu)(bu)到正常保護(hu)作用，從而發生電(dian)(dian)氣(qi)短(duan)路(lu)和(he)火災等現象。

3、護(hu)套(tao)式絕(jue)緣(yuan)老化(hua)前的(de)抗張(zhang)強(qiang)(qiang)度(du)(du)、伸長率合格的(de)電線電纜。絕(jue)緣(yuan)護(hu)套(tao)老化(hua)前的(de)抗張(zhang)強(qiang)(qiang)度(du)(du)、伸長率不合格直接(jie)大大縮短(duan)電線電纜的(de)工(gong)作用壽命，而且在(zai)施工(gong)或(huo)在(zai)長時間(jian)通電且溫度(du)(du)較(jiao)高的(de)環境中(zhong)，極(ji)易出現絕(jue)緣(yuan)體(ti)斷裂，致使帶(dai)電導體(ti)裸露，發生能觸電式短(duan)路危險。其不合格的(de)主(zhu)要原因是(shi)使用了再生料(liao)生產，以降低產品成本(ben)，二是(shi)不具備生產資格小型企業。

4、導(dao)(dao)體電(dian)(dian)(dian)阻(zu)(zu)不(bu)合格(ge)(ge)的(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體電(dian)(dian)(dian)阻(zu)(zu)主要(yao)(yao)是考核(he)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)(dao)體材料以(yi)及截面(mian)是否符合的(de)(de)重(zhong)要(yao)(yao)指標(biao)。當導(dao)(dao)體電(dian)(dian)(dian)阻(zu)(zu)超標(biao)時(shi)，就增大了電(dian)(dian)(dian)流在(zai)(zai)線(xian)路(lu)上(shang)通過時(shi)的(de)(de)損耗，加劇了電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)發熱。導(dao)(dao)體電(dian)(dian)(dian)阻(zu)(zu)不(bu)合格(ge)(ge)的(de)(de)原(yuan)因，主要(yao)(yao)進(jin)企業為了降(jiang)(jiang)低成本(ben)(ben)，將占原(yuan)材料成本(ben)(ben)80%的(de)(de)銅(tong)材縮(suo)水，要(yao)(yao)么(me)降(jiang)(jiang)低導(dao)(dao)體的(de)(de)截面(mian)積，要(yao)(yao)么(me)使用含雜質(zhi)過高(gao)的(de)(de)再(zai)生銅(tong)，這樣致使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜的(de)(de)導(dao)(dao)體電(dian)(dian)(dian)阻(zu)(zu)嚴(yan)重(zhong)超標(biao)，在(zai)(zai)使用過程中除易引發火災，還會加速(su)包覆在(zai)(zai)電(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層的(de)(de)老化(hua)。

在購買電(dian)線(xian)電(dian)纜(lan)的過程中(zhong)，消費(fei)者應(ying)注(zhu)意以下幾個事

第一、要(yao)觀察電線(xian)的(de)(de)外觀。合格產品的(de)(de)絕緣（護套）層(ceng)柔軟(ruan)、有韌(ren)性和伸(shen)縮性、表面層(ceng)緊密、光滑、無粗(cu)糙(cao)感。如果包裹電線(xian)的(de)(de)塑料很容易被剝(bo)去，則(ze)存(cun)在塑料強度不夠的(de)(de)問題。

第二(er)、要看電線(xian)的截面(mian)(mian)。合格產品的銅芯或鋁(lv)芯表(biao)面(mian)(mian)應該具有(you)金屬(shu)光澤，表(biao)面(mian)(mian)發黑的銅或表(biao)面(mian)(mian)發白的鋁(lv)說明已被氧化。

第三(san)、在購買電(dian)線(xian)時應注意查(cha)看質量合格證(zheng)書(shu)。如果電(dian)線(xian)的質量合格，那么其電(dian)線(xian)質量應該(gai)也(ye)受過檢驗，不會有太(tai)大的問題。

沈(shen)陽凱鵬電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制造有(you)限公(gong)司隸屬凱鵬集(ji)團下(xia)屬子公(gong)司，專(zhuan)門從事電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研發、生(sheng)產制造，是全國(guo)頗(po)具實力的(de)沈(shen)陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主(zhu)營(ying)產品：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子計算(suan)機電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加工(gong)。小編(bian)每天會(hui)在公(gong)司官網(wang)發布電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價格表，及時更新銅(tong)價以及電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信息(xi)。更多有(you)關電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息(xi)可點擊公(gong)司官網(wang)szbowen.cn