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)電線電纜的危害

電(dian)線電(dian)纜是(shi)用于傳輸電(dian)力、傳輸信息和實現(xian)電(dian)磁(ci)能(neng)量轉(zhuan)換的一大(da)類電(dian)工(gong)產(chan)品。在(zai)抽查過程中(zhong)，發(fa)現(xian)了大(da)量的不合格產(chan)品，這些劣質產(chan)品給電(dian)力系(xi)統正常運行埋下諸(zhu)多隱患。

1、標(biao)志不(bu)合(he)格(ge)的電(dian)線(xian)(xian)電(dian)纜。標(biao)志是(shi)電(dian)線(xian)(xian)電(dian)纜使用識(shi)別(bie)產品基本信(xin)息的主要途徑，根(gen)據標(biao)準規定(ding)標(biao)志的主要內(nei)容(rong)是(shi)：產品型號、規格(ge)、標(biao)準號、廠(chang)名(ming)、產地等在(zai)一(yi)定(ding)的標(biao)示間距內(nei)，當標(biao)志不(bu)合(he)格(ge)時(shi)，會造成施工人員識(shi)別(bie)錯(cuo)誤，嚴重時(shi)會引發(fa)電(dian)氣事(shi)故(gu)。

2、結構(gou)尺寸不合格的(de)電(dian)線(xian)(xian)電(dian)纜(lan)。結構(gou)尺寸的(de)主要(yao)問題是護套(tao)(tao)厚度(du)(du)，絕(jue)(jue)緣(yuan)厚度(du)(du)，當電(dian)纜(lan)的(de)護套(tao)(tao)和(he)絕(jue)(jue)緣(yuan)厚度(du)(du)不達標時，致(zhi)(zhi)使電(dian)線(xian)(xian)電(dian)纜(lan)耐電(dian)氣強度(du)(du)會嚴重降低，導(dao)致(zhi)(zhi)電(dian)線(xian)(xian)電(dian)纜(lan)的(de)使用(yong)壽命縮短，嚴重時可導(dao)致(zhi)(zhi)電(dian)線(xian)(xian)電(dian)纜(lan)被(bei)擊穿，絕(jue)(jue)緣(yuan)（護套(tao)(tao)）層(ceng)起不到正常(chang)保護作用(yong)，從而發(fa)生電(dian)氣短路和(he)火災等現象。

3、護(hu)套式(shi)絕緣(yuan)老(lao)化前的(de)抗張(zhang)強度、伸長率(lv)合(he)格(ge)的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜。絕緣(yuan)護(hu)套老(lao)化前的(de)抗張(zhang)強度、伸長率(lv)不(bu)合(he)格(ge)直接大大縮短(duan)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)工作用壽(shou)命，而且在施工或在長時間通電(dian)(dian)且溫度較高的(de)環境(jing)中(zhong)，極(ji)易出現(xian)絕緣(yuan)體斷裂，致(zhi)使(shi)(shi)帶電(dian)(dian)導體裸(luo)露，發生(sheng)(sheng)能觸電(dian)(dian)式(shi)短(duan)路危險。其(qi)不(bu)合(he)格(ge)的(de)主要原因是使(shi)(shi)用了再(zai)生(sheng)(sheng)料生(sheng)(sheng)產，以降低產品成本(ben)，二是不(bu)具備生(sheng)(sheng)產資格(ge)小(xiao)型企業。

4、導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)不(bu)合(he)(he)格(ge)的(de)(de)(de)(de)電(dian)(dian)線(xian)。導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)主要是(shi)考核(he)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)(de)導(dao)(dao)(dao)體(ti)材料以(yi)及截面是(shi)否符合(he)(he)的(de)(de)(de)(de)重(zhong)要指(zhi)標(biao)。當導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)超標(biao)時，就增大了(le)電(dian)(dian)流在線(xian)路上通(tong)過時的(de)(de)(de)(de)損耗，加(jia)(jia)劇了(le)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)(de)發熱。導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)不(bu)合(he)(he)格(ge)的(de)(de)(de)(de)原因，主要進企業為了(le)降低成(cheng)本(ben)，將(jiang)占原材料成(cheng)本(ben)80%的(de)(de)(de)(de)銅(tong)材縮水，要么(me)降低導(dao)(dao)(dao)體(ti)的(de)(de)(de)(de)截面積，要么(me)使用含雜質(zhi)過高的(de)(de)(de)(de)再生銅(tong)，這樣致使電(dian)(dian)線(xian)電(dian)(dian)纜(lan)的(de)(de)(de)(de)導(dao)(dao)(dao)體(ti)電(dian)(dian)阻(zu)嚴重(zhong)超標(biao)，在使用過程(cheng)中除易(yi)引(yin)發火(huo)災，還會加(jia)(jia)速包(bao)覆(fu)在電(dian)(dian)線(xian)外的(de)(de)(de)(de)絕緣層的(de)(de)(de)(de)老化(hua)。

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

第一、要觀察電(dian)線的外觀。合格產(chan)品的絕緣（護套）層(ceng)柔軟、有韌性和伸縮(suo)性、表面層(ceng)緊密、光(guang)滑、無粗糙感。如果包裹(guo)電(dian)線的塑料很容易(yi)被剝去，則存在塑料強度不(bu)夠的問題。

第二、要看電(dian)線的截面(mian)(mian)(mian)(mian)。合(he)格(ge)產品(pin)的銅芯或鋁芯表(biao)面(mian)(mian)(mian)(mian)應該具有金屬(shu)光澤，表(biao)面(mian)(mian)(mian)(mian)發(fa)黑的銅或表(biao)面(mian)(mian)(mian)(mian)發(fa)白的鋁說(shuo)明(ming)已被氧化。

第三、在購(gou)買(mai)電線時應(ying)注意查(cha)看質(zhi)量合(he)格(ge)證書。如(ru)果電線的(de)質(zhi)量合(he)格(ge)，那么其電線質(zhi)量應(ying)該(gai)也受(shou)過(guo)檢驗(yan)，不(bu)會(hui)有太(tai)大(da)的(de)問題。

沈(shen)(shen)陽凱(kai)鵬電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制(zhi)造有(you)限(xian)公司(si)隸(li)屬(shu)凱(kai)鵬集團下屬(shu)子公司(si)，專(zhuan)門從事電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發(fa)、生產(chan)制(zhi)造，是全國頗具實力的沈(shen)(shen)陽電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)家，主(zhu)營產(chan)品：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控(kong)制(zhi)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等，以及(ji)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加(jia)工。小編(bian)每天會(hui)在公司(si)官網發(fa)布電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價格表，及(ji)時更新(xin)銅價以及(ji)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)報價信息。更多有(you)關電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息可點擊公司(si)官網szbowen.cn