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)線電(dian)(dian)纜是用于傳輸電(dian)(dian)力、傳輸信息和實現電(dian)(dian)磁能量轉換的一大類電(dian)(dian)工產(chan)品(pin)。在(zai)抽(chou)查(cha)過程中(zhong)，發(fa)現了大量的不合格產(chan)品(pin)，這些劣質產(chan)品(pin)給電(dian)(dian)力系統正常運行埋下諸多隱患。

1、標(biao)志(zhi)(zhi)不合格(ge)(ge)的電線電纜。標(biao)志(zhi)(zhi)是電線電纜使用識別產品基本信(xin)息(xi)的主(zhu)要途徑，根據標(biao)準規定標(biao)志(zhi)(zhi)的主(zhu)要內(nei)容是：產品型號、規格(ge)(ge)、標(biao)準號、廠名、產地等在一定的標(biao)示(shi)間距(ju)內(nei)，當(dang)標(biao)志(zhi)(zhi)不合格(ge)(ge)時，會(hui)造(zao)成施(shi)工人員識別錯(cuo)誤，嚴重(zhong)時會(hui)引發(fa)電氣事故。

2、結(jie)構尺(chi)(chi)寸不合(he)格的(de)(de)電(dian)(dian)線電(dian)(dian)纜(lan)。結(jie)構尺(chi)(chi)寸的(de)(de)主要問題是(shi)護(hu)(hu)套(tao)厚(hou)度，絕緣厚(hou)度，當電(dian)(dian)纜(lan)的(de)(de)護(hu)(hu)套(tao)和絕緣厚(hou)度不達標時(shi)，致(zhi)使電(dian)(dian)線電(dian)(dian)纜(lan)耐(nai)電(dian)(dian)氣強度會嚴(yan)重(zhong)降(jiang)低，導致(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)的(de)(de)使用(yong)(yong)壽命縮短，嚴(yan)重(zhong)時(shi)可(ke)導致(zhi)電(dian)(dian)線電(dian)(dian)纜(lan)被擊穿(chuan)，絕緣（護(hu)(hu)套(tao)）層起不到正常保護(hu)(hu)作用(yong)(yong)，從而(er)發生電(dian)(dian)氣短路和火災等(deng)現象。

3、護套式絕(jue)緣(yuan)老化前(qian)的(de)抗張強度(du)(du)、伸(shen)長(chang)(chang)率(lv)合格(ge)(ge)的(de)電(dian)線電(dian)纜(lan)。絕(jue)緣(yuan)護套老化前(qian)的(de)抗張強度(du)(du)、伸(shen)長(chang)(chang)率(lv)不合格(ge)(ge)直接大大縮短(duan)電(dian)線電(dian)纜(lan)的(de)工作用壽(shou)命，而且(qie)在施工或在長(chang)(chang)時間通電(dian)且(qie)溫度(du)(du)較高(gao)的(de)環境(jing)中，極易出現絕(jue)緣(yuan)體斷裂，致使(shi)帶(dai)電(dian)導體裸露(lu)，發生能觸電(dian)式短(duan)路危險(xian)。其不合格(ge)(ge)的(de)主要原因是使(shi)用了再生料(liao)生產，以降低產品成本，二是不具備生產資格(ge)(ge)小(xiao)型企(qi)業(ye)。

4、導(dao)體(ti)(ti)(ti)電(dian)(dian)阻(zu)不合(he)格(ge)的(de)(de)(de)(de)電(dian)(dian)線。導(dao)體(ti)(ti)(ti)電(dian)(dian)阻(zu)主要(yao)(yao)是(shi)考(kao)核電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)(de)導(dao)體(ti)(ti)(ti)材(cai)料(liao)(liao)以(yi)及截面是(shi)否符(fu)合(he)的(de)(de)(de)(de)重(zhong)要(yao)(yao)指標(biao)。當導(dao)體(ti)(ti)(ti)電(dian)(dian)阻(zu)超標(biao)時，就增(zeng)大了電(dian)(dian)流(liu)在線路上通過(guo)時的(de)(de)(de)(de)損耗(hao)，加(jia)劇了電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)(de)發熱(re)。導(dao)體(ti)(ti)(ti)電(dian)(dian)阻(zu)不合(he)格(ge)的(de)(de)(de)(de)原(yuan)因，主要(yao)(yao)進(jin)企業為了降低(di)成本，將(jiang)占原(yuan)材(cai)料(liao)(liao)成本80%的(de)(de)(de)(de)銅材(cai)縮水，要(yao)(yao)么(me)降低(di)導(dao)體(ti)(ti)(ti)的(de)(de)(de)(de)截面積，要(yao)(yao)么(me)使(shi)(shi)(shi)用含雜(za)質過(guo)高的(de)(de)(de)(de)再生(sheng)銅，這樣(yang)致使(shi)(shi)(shi)電(dian)(dian)線電(dian)(dian)纜的(de)(de)(de)(de)導(dao)體(ti)(ti)(ti)電(dian)(dian)阻(zu)嚴重(zhong)超標(biao)，在使(shi)(shi)(shi)用過(guo)程中除易(yi)引(yin)發火災(zai)，還會(hui)加(jia)速包覆在電(dian)(dian)線外的(de)(de)(de)(de)絕(jue)緣層的(de)(de)(de)(de)老化。

在購買電(dian)線(xian)電(dian)纜的過(guo)程中，消費者應注(zhu)意(yi)以下幾個事

第一、要觀(guan)察電(dian)線的(de)外(wai)觀(guan)。合格產品的(de)絕緣(yuan)（護套(tao)）層(ceng)柔軟、有韌性(xing)和(he)伸縮性(xing)、表面層(ceng)緊密、光滑、無(wu)粗糙(cao)感。如果包裹電(dian)線的(de)塑(su)料很容(rong)易被剝去，則存在塑(su)料強(qiang)度不夠的(de)問題(ti)。

第二(er)、要看電線(xian)的(de)截面(mian)。合(he)格產品(pin)的(de)銅芯(xin)或鋁芯(xin)表面(mian)應(ying)該具(ju)有金屬光澤(ze)，表面(mian)發(fa)黑的(de)銅或表面(mian)發(fa)白(bai)的(de)鋁說(shuo)明已被氧化。

第三、在(zai)購買(mai)電(dian)線時應注意查看質量合格(ge)證書(shu)。如果電(dian)線的(de)質量合格(ge)，那(nei)么其電(dian)線質量應該也受過(guo)檢驗，不會有太大的(de)問題(ti)。

沈陽凱(kai)鵬電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制(zhi)(zhi)造有(you)限公司隸屬凱(kai)鵬集團下屬子(zi)公司，專(zhuan)門(men)從事電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發(fa)、生產(chan)制(zhi)(zhi)造，是全國(guo)頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)家，主營產(chan)品(pin)：電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控(kong)制(zhi)(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加(jia)工(gong)。小編每天會(hui)在公司官網(wang)發(fa)布電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價格表，及(ji)時(shi)更新(xin)銅(tong)價以及(ji)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)報價信息。更多(duo)有(you)關電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息可(ke)點擊(ji)公司官網(wang)szbowen.cn