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(ge)電(dian)線電(dian)纜的危害

電線電纜(lan)是用于傳輸電力、傳輸信息和(he)實現(xian)電磁能量(liang)轉換的一(yi)大(da)(da)類電工(gong)產品(pin)。在抽查(cha)過程中，發(fa)現(xian)了大(da)(da)量(liang)的不合(he)格(ge)產品(pin)，這(zhe)些劣(lie)質(zhi)產品(pin)給電力系統正常(chang)運(yun)行埋下諸多(duo)隱患。

1、標(biao)志(zhi)(zhi)不合格的(de)電線電纜。標(biao)志(zhi)(zhi)是(shi)電線電纜使用識別(bie)(bie)產品基本信息的(de)主要途(tu)徑，根(gen)據標(biao)準(zhun)規定標(biao)志(zhi)(zhi)的(de)主要內容是(shi)：產品型號(hao)、規格、標(biao)準(zhun)號(hao)、廠名、產地(di)等在一定的(de)標(biao)示間距內，當標(biao)志(zhi)(zhi)不合格時(shi)，會造成施工人員識別(bie)(bie)錯(cuo)誤，嚴重時(shi)會引發電氣事(shi)故。

2、結(jie)構尺寸不合(he)格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜(lan)。結(jie)構尺寸的(de)主要問(wen)題是護套(tao)厚(hou)度(du)，絕緣厚(hou)度(du)，當電(dian)(dian)纜(lan)的(de)護套(tao)和絕緣厚(hou)度(du)不達標時(shi)，致使電(dian)(dian)線電(dian)(dian)纜(lan)耐電(dian)(dian)氣強度(du)會(hui)嚴重降低(di)，導致電(dian)(dian)線電(dian)(dian)纜(lan)的(de)使用壽命縮短，嚴重時(shi)可導致電(dian)(dian)線電(dian)(dian)纜(lan)被(bei)擊(ji)穿，絕緣（護套(tao)）層(ceng)起(qi)不到正(zheng)常(chang)保護作(zuo)用，從(cong)而發(fa)生(sheng)電(dian)(dian)氣短路和火災等現(xian)象。

3、護(hu)套式絕緣(yuan)(yuan)老(lao)化前(qian)的(de)抗(kang)張(zhang)(zhang)強(qiang)度(du)(du)、伸(shen)長(chang)率合格(ge)的(de)電(dian)(dian)線電(dian)(dian)纜(lan)。絕緣(yuan)(yuan)護(hu)套老(lao)化前(qian)的(de)抗(kang)張(zhang)(zhang)強(qiang)度(du)(du)、伸(shen)長(chang)率不合格(ge)直接大大縮短電(dian)(dian)線電(dian)(dian)纜(lan)的(de)工作(zuo)用壽命，而且(qie)在施工或在長(chang)時間通電(dian)(dian)且(qie)溫度(du)(du)較高(gao)的(de)環境中，極易出(chu)現絕緣(yuan)(yuan)體(ti)斷裂，致使帶電(dian)(dian)導(dao)體(ti)裸露，發(fa)生(sheng)能觸(chu)電(dian)(dian)式短路(lu)危險。其不合格(ge)的(de)主(zhu)要原因是使用了(le)再生(sheng)料生(sheng)產，以(yi)降低(di)產品成本，二是不具(ju)備生(sheng)產資(zi)格(ge)小型企業。

4、導(dao)體(ti)(ti)(ti)電(dian)(dian)阻不合(he)格(ge)的(de)(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)(ti)電(dian)(dian)阻主要(yao)(yao)(yao)是考(kao)核(he)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體(ti)(ti)(ti)材料(liao)以及截面是否符合(he)的(de)(de)(de)重(zhong)要(yao)(yao)(yao)指標(biao)。當(dang)導(dao)體(ti)(ti)(ti)電(dian)(dian)阻超(chao)(chao)標(biao)時，就(jiu)增大了電(dian)(dian)流在線(xian)(xian)路上通過時的(de)(de)(de)損(sun)耗，加(jia)劇了電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)發(fa)熱(re)。導(dao)體(ti)(ti)(ti)電(dian)(dian)阻不合(he)格(ge)的(de)(de)(de)原因，主要(yao)(yao)(yao)進企業為了降(jiang)低成(cheng)本，將(jiang)占原材料(liao)成(cheng)本80%的(de)(de)(de)銅(tong)材縮水，要(yao)(yao)(yao)么降(jiang)低導(dao)體(ti)(ti)(ti)的(de)(de)(de)截面積，要(yao)(yao)(yao)么使(shi)用含雜質過高的(de)(de)(de)再生銅(tong)，這樣致使(shi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)(de)導(dao)體(ti)(ti)(ti)電(dian)(dian)阻嚴重(zhong)超(chao)(chao)標(biao)，在使(shi)用過程中(zhong)除(chu)易(yi)引(yin)發(fa)火(huo)災，還會加(jia)速包覆(fu)在電(dian)(dian)線(xian)(xian)外(wai)的(de)(de)(de)絕緣層(ceng)的(de)(de)(de)老化。

在購買電線(xian)電纜的(de)過程中，消費者應注意以下幾個(ge)事

第(di)一(yi)、要觀察(cha)電(dian)線的外觀。合(he)格(ge)產品的絕緣(yuan)（護套）層柔軟(ruan)、有韌性(xing)和(he)伸(shen)縮性(xing)、表面(mian)層緊密、光滑、無粗糙感。如果包(bao)裹電(dian)線的塑料很容易被剝去，則存在(zai)塑料強度不夠的問題。

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

第三、在購買電線(xian)時應注意(yi)查看質(zhi)量(liang)合格證書。如果電線(xian)的(de)(de)質(zhi)量(liang)合格，那么(me)其電線(xian)質(zhi)量(liang)應該也受過檢驗(yan)，不會有太大的(de)(de)問題(ti)。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制造(zao)有(you)限公(gong)司(si)隸(li)屬凱鵬集團下屬子(zi)(zi)公(gong)司(si)，專門從(cong)事電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研發、生產制造(zao)，是全國頗具實力(li)的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)(zi)計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等(deng)，以(yi)(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加工(gong)。小編每天(tian)會在公(gong)司(si)官網發布電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表，及(ji)時更(geng)(geng)新銅價以(yi)(yi)及(ji)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信息。更(geng)(geng)多有(you)關電(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息可點(dian)擊公(gong)司(si)官網szbowen.cn