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

不合格電線(xian)電纜(lan)的危害

電(dian)線電(dian)纜是(shi)用于傳輸(shu)電(dian)力、傳輸(shu)信息和實(shi)現(xian)電(dian)磁能量轉換的一大類電(dian)工產品(pin)。在抽查過程(cheng)中(zhong)，發(fa)現(xian)了大量的不合格產品(pin)，這些劣質產品(pin)給電(dian)力系(xi)統正常運行埋(mai)下諸多隱患。

1、標(biao)(biao)志(zhi)不(bu)合(he)格(ge)的電(dian)(dian)線(xian)電(dian)(dian)纜。標(biao)(biao)志(zhi)是(shi)電(dian)(dian)線(xian)電(dian)(dian)纜使用識別產品基本信息的主(zhu)要(yao)途徑，根據標(biao)(biao)準規(gui)(gui)定標(biao)(biao)志(zhi)的主(zhu)要(yao)內(nei)容是(shi)：產品型號、規(gui)(gui)格(ge)、標(biao)(biao)準號、廠名、產地等在一定的標(biao)(biao)示間距內(nei)，當標(biao)(biao)志(zhi)不(bu)合(he)格(ge)時(shi)，會(hui)造(zao)成施工人員識別錯誤，嚴(yan)重時(shi)會(hui)引(yin)發電(dian)(dian)氣事故。

2、結構(gou)尺寸不合格的電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)。結構(gou)尺寸的主要問題(ti)是護(hu)(hu)套厚度(du)，絕緣(yuan)厚度(du)，當電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的護(hu)(hu)套和絕緣(yuan)厚度(du)不達標時(shi)，致(zhi)使電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)耐電(dian)(dian)(dian)(dian)(dian)氣強度(du)會嚴(yan)重(zhong)降低(di)，導(dao)致(zhi)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)的使用壽命縮短，嚴(yan)重(zhong)時(shi)可導(dao)致(zhi)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)被擊穿(chuan)，絕緣(yuan)（護(hu)(hu)套）層(ceng)起(qi)不到正(zheng)常保護(hu)(hu)作(zuo)用，從(cong)而發生電(dian)(dian)(dian)(dian)(dian)氣短路(lu)和火災等(deng)現象。

3、護(hu)套式絕(jue)緣老(lao)化前的(de)(de)抗(kang)張(zhang)強度(du)、伸長(chang)率合(he)(he)格的(de)(de)電(dian)線電(dian)纜。絕(jue)緣護(hu)套老(lao)化前的(de)(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(duan)電(dian)線電(dian)纜的(de)(de)工作用壽(shou)命，而且(qie)在施(shi)工或在長(chang)時間(jian)通電(dian)且(qie)溫(wen)度(du)較高的(de)(de)環境(jing)中，極(ji)易(yi)出現(xian)絕(jue)緣體斷裂，致(zhi)使帶電(dian)導體裸露(lu)，發生(sheng)能觸電(dian)式短(duan)路(lu)危(wei)險。其(qi)不(bu)合(he)(he)格的(de)(de)主要原因是使用了再生(sheng)料生(sheng)產，以降低產品成本，二(er)是不(bu)具備生(sheng)產資格小(xiao)型企業。

4、導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)不合(he)格的(de)(de)(de)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)主要是(shi)考核電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)材料以(yi)及截面是(shi)否符合(he)的(de)(de)(de)重要指標。當導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)超標時，就增大了電(dian)(dian)(dian)(dian)流在(zai)線(xian)(xian)(xian)路上通(tong)過(guo)時的(de)(de)(de)損(sun)耗，加(jia)(jia)劇了電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)發熱。導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)不合(he)格的(de)(de)(de)原(yuan)因，主要進企業(ye)為了降(jiang)低成本(ben)，將占(zhan)原(yuan)材料成本(ben)80%的(de)(de)(de)銅材縮水，要么降(jiang)低導(dao)體(ti)的(de)(de)(de)截面積，要么使用含雜質過(guo)高的(de)(de)(de)再生銅，這(zhe)樣致(zhi)使電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)導(dao)體(ti)電(dian)(dian)(dian)(dian)阻(zu)(zu)(zu)嚴(yan)重超標，在(zai)使用過(guo)程(cheng)中除(chu)易引發火災，還會加(jia)(jia)速(su)包覆在(zai)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)外的(de)(de)(de)絕(jue)緣層(ceng)的(de)(de)(de)老化(hua)。

在購買(mai)電(dian)線電(dian)纜(lan)的過程中，消費者(zhe)應注意以(yi)下幾個事

第(di)一、要觀察電(dian)(dian)線(xian)(xian)的外觀。合格產品的絕緣（護套）層(ceng)柔軟(ruan)、有韌性(xing)和(he)伸縮性(xing)、表面層(ceng)緊密、光滑(hua)、無粗糙(cao)感(gan)。如果包裹電(dian)(dian)線(xian)(xian)的塑料(liao)很容易(yi)被(bei)剝去，則存在塑料(liao)強度不夠的問題。

第二、要看電線(xian)的(de)截面(mian)(mian)。合格產品(pin)的(de)銅芯(xin)(xin)或(huo)鋁芯(xin)(xin)表面(mian)(mian)應該具有(you)金屬(shu)光澤，表面(mian)(mian)發黑的(de)銅或(huo)表面(mian)(mian)發白的(de)鋁說明已被氧化。

第三、在購(gou)買電線時應(ying)注意查看質量合格證書(shu)。如果電線的(de)質量合格，那么(me)其電線質量應(ying)該也受過檢驗，不會有太大的(de)問題(ti)。

沈陽凱(kai)鵬電(dian)線(xian)電(dian)纜(lan)(lan)制造(zao)有(you)限公司(si)隸(li)屬(shu)凱(kai)鵬集團下屬(shu)子公司(si)，專門從事(shi)電(dian)線(xian)電(dian)纜(lan)(lan)研發、生產制造(zao)，是(shi)全國頗具實力的(de)沈陽電(dian)纜(lan)(lan)廠家，主營產品：電(dian)力電(dian)纜(lan)(lan)、控制電(dian)纜(lan)(lan)、橡套電(dian)纜(lan)(lan)、電(dian)氣裝備用電(dian)線(xian)電(dian)纜(lan)(lan)、電(dian)子計算機電(dian)纜(lan)(lan)、BTTZ電(dian)纜(lan)(lan)、YTTW電(dian)纜(lan)(lan)等，以(yi)及電(dian)線(xian)電(dian)纜(lan)(lan)代加(jia)工(gong)。小編(bian)每天會在公司(si)官網(wang)發布電(dian)線(xian)電(dian)纜(lan)(lan)價(jia)格表，及時更(geng)新銅(tong)價(jia)以(yi)及電(dian)纜(lan)(lan)廠報(bao)價(jia)信(xin)息(xi)。更(geng)多有(you)關電(dian)線(xian)電(dian)纜(lan)(lan)信(xin)息(xi)可(ke)點擊公司(si)官網(wang)szbowen.cn