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)電線電纜的(de)危害

電(dian)線電(dian)纜是用于傳輸電(dian)力(li)、傳輸信(xin)息和實現(xian)電(dian)磁能量轉換的一(yi)大類電(dian)工產(chan)(chan)(chan)品(pin)。在(zai)抽(chou)查過程(cheng)中(zhong)，發現(xian)了大量的不合格產(chan)(chan)(chan)品(pin)，這些劣(lie)質(zhi)產(chan)(chan)(chan)品(pin)給電(dian)力(li)系統正常(chang)運行埋(mai)下(xia)諸多(duo)隱患(huan)。

1、標(biao)(biao)志(zhi)不(bu)合(he)格的(de)(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜。標(biao)(biao)志(zhi)是(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜使用識(shi)別(bie)產品基本信息的(de)(de)主要(yao)途(tu)徑，根據標(biao)(biao)準規定標(biao)(biao)志(zhi)的(de)(de)主要(yao)內容是(shi)：產品型號(hao)、規格、標(biao)(biao)準號(hao)、廠名(ming)、產地(di)等在一定的(de)(de)標(biao)(biao)示間距內，當標(biao)(biao)志(zhi)不(bu)合(he)格時，會造成施(shi)工人(ren)員識(shi)別(bie)錯誤(wu)，嚴重時會引發電(dian)(dian)(dian)氣事(shi)故。

2、結(jie)構尺寸(cun)不合(he)格的電(dian)(dian)線(xian)電(dian)(dian)纜。結(jie)構尺寸(cun)的主要問題是護(hu)套厚度，絕緣(yuan)厚度，當電(dian)(dian)纜的護(hu)套和絕緣(yuan)厚度不達(da)標時，致使電(dian)(dian)線(xian)電(dian)(dian)纜耐電(dian)(dian)氣強度會嚴(yan)重降(jiang)低，導致電(dian)(dian)線(xian)電(dian)(dian)纜的使用壽(shou)命縮(suo)短(duan)(duan)，嚴(yan)重時可導致電(dian)(dian)線(xian)電(dian)(dian)纜被擊穿，絕緣(yuan)（護(hu)套）層起(qi)不到正常保護(hu)作用，從而(er)發生電(dian)(dian)氣短(duan)(duan)路和火(huo)災(zai)等現象(xiang)。

3、護套式絕(jue)緣老化前的(de)抗(kang)張(zhang)強度(du)、伸長(chang)率合(he)(he)格的(de)電(dian)線電(dian)纜。絕(jue)緣護套老化前的(de)抗(kang)張(zhang)強度(du)、伸長(chang)率不(bu)合(he)(he)格直接大(da)大(da)縮短電(dian)線電(dian)纜的(de)工作(zuo)用壽(shou)命，而且在施工或在長(chang)時間通電(dian)且溫度(du)較高的(de)環境中，極易(yi)出現絕(jue)緣體斷裂，致使帶(dai)電(dian)導體裸露，發生(sheng)能觸(chu)電(dian)式短路危險。其不(bu)合(he)(he)格的(de)主要原(yuan)因是使用了再生(sheng)料生(sheng)產(chan)，以降低(di)產(chan)品成(cheng)本，二是不(bu)具備(bei)生(sheng)產(chan)資格小型企業(ye)。

4、導(dao)體(ti)電(dian)(dian)阻(zu)(zu)不合格(ge)的(de)(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)體(ti)電(dian)(dian)阻(zu)(zu)主要(yao)是(shi)考(kao)核電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)的(de)(de)(de)導(dao)體(ti)材料以(yi)及截(jie)面是(shi)否符合的(de)(de)(de)重要(yao)指標。當導(dao)體(ti)電(dian)(dian)阻(zu)(zu)超標時，就增大了電(dian)(dian)流在(zai)線(xian)(xian)路(lu)上通過時的(de)(de)(de)損耗，加(jia)劇了電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)的(de)(de)(de)發熱。導(dao)體(ti)電(dian)(dian)阻(zu)(zu)不合格(ge)的(de)(de)(de)原因，主要(yao)進企業為了降低成(cheng)本，將(jiang)占原材料成(cheng)本80%的(de)(de)(de)銅材縮水(shui)，要(yao)么降低導(dao)體(ti)的(de)(de)(de)截(jie)面積，要(yao)么使用(yong)(yong)含雜質(zhi)過高的(de)(de)(de)再生銅，這樣(yang)致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)(lan)的(de)(de)(de)導(dao)體(ti)電(dian)(dian)阻(zu)(zu)嚴重超標，在(zai)使用(yong)(yong)過程中除易(yi)引(yin)發火災(zai)，還會(hui)加(jia)速(su)包(bao)覆在(zai)電(dian)(dian)線(xian)(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老化(hua)。

在購買電(dian)線(xian)電(dian)纜的過程中，消費者應注(zhu)意以下(xia)幾個(ge)事

第(di)一、要觀察電(dian)線的(de)外觀。合格(ge)產品的(de)絕(jue)緣（護套）層柔軟、有韌性(xing)和伸縮性(xing)、表(biao)面層緊密、光(guang)滑、無粗(cu)糙(cao)感(gan)。如果(guo)包裹電(dian)線的(de)塑料(liao)很容(rong)易被剝(bo)去，則存在塑料(liao)強度(du)不夠的(de)問題。

第二、要看電線(xian)的截面(mian)。合格產品(pin)的銅芯或鋁芯表(biao)面(mian)應(ying)該具有金屬光(guang)澤，表(biao)面(mian)發(fa)黑的銅或表(biao)面(mian)發(fa)白的鋁說明(ming)已被氧化。

第(di)三、在購買電(dian)(dian)線時應注意查(cha)看質(zhi)量合(he)格(ge)證(zheng)書(shu)。如果電(dian)(dian)線的(de)質(zhi)量合(he)格(ge)，那么(me)其電(dian)(dian)線質(zhi)量應該也受過(guo)檢驗(yan)，不會(hui)有太大的(de)問題。

沈陽(yang)(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)(zhi)造有限公(gong)司(si)隸屬(shu)凱鵬集團下屬(shu)子(zi)公(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研(yan)發、生產(chan)制(zhi)(zhi)造，是全國頗具實力(li)的(de)沈陽(yang)(yang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠家，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)力(li)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代加(jia)工。小編每(mei)天會在公(gong)司(si)官網(wang)發布電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價格表，及時更新銅價以及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠報價信息。更多有關電(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息可點擊公(gong)司(si)官網(wang)szbowen.cn