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)電纜的危害

電(dian)線電(dian)纜是用(yong)于傳輸電(dian)力、傳輸信(xin)息(xi)和實現電(dian)磁能量轉換的(de)一大類電(dian)工產品(pin)。在抽查過(guo)程中(zhong)，發現了大量的(de)不合格產品(pin)，這些劣質產品(pin)給電(dian)力系(xi)統(tong)正常運行(xing)埋下諸多隱患。

1、標志不(bu)合格的電線電纜(lan)。標志是(shi)電線電纜(lan)使用識(shi)別產品基本信息的主要途徑，根據標準規定標志的主要內容是(shi)：產品型(xing)號、規格、標準號、廠名、產地等在一定的標示(shi)間距內，當標志不(bu)合格時，會造成(cheng)施工人(ren)員識(shi)別錯誤，嚴重時會引發電氣(qi)事故。

2、結構尺寸(cun)不合格(ge)的(de)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)。結構尺寸(cun)的(de)主要問題是護(hu)(hu)套厚度，絕(jue)緣厚度，當電(dian)(dian)(dian)纜(lan)(lan)的(de)護(hu)(hu)套和(he)絕(jue)緣厚度不達標(biao)時，致使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)耐電(dian)(dian)(dian)氣強度會嚴(yan)重降低，導致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)的(de)使(shi)用壽命縮短，嚴(yan)重時可(ke)導致電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)被擊穿，絕(jue)緣（護(hu)(hu)套）層起(qi)不到(dao)正常保護(hu)(hu)作(zuo)用，從(cong)而發生(sheng)電(dian)(dian)(dian)氣短路和(he)火(huo)災等現(xian)象。

3、護(hu)套式(shi)絕緣老(lao)化前(qian)的抗(kang)張強(qiang)(qiang)度(du)(du)、伸(shen)長(chang)率合(he)(he)格(ge)(ge)的電(dian)線電(dian)纜(lan)。絕緣護(hu)套老(lao)化前(qian)的抗(kang)張強(qiang)(qiang)度(du)(du)、伸(shen)長(chang)率不(bu)(bu)合(he)(he)格(ge)(ge)直接大(da)大(da)縮短電(dian)線電(dian)纜(lan)的工(gong)作用(yong)壽命，而且在施工(gong)或在長(chang)時間(jian)通電(dian)且溫度(du)(du)較(jiao)高(gao)的環境(jing)中，極易出現絕緣體斷(duan)裂，致使(shi)帶電(dian)導(dao)體裸露(lu)，發(fa)生(sheng)(sheng)能觸電(dian)式(shi)短路危險。其(qi)不(bu)(bu)合(he)(he)格(ge)(ge)的主要(yao)原因是使(shi)用(yong)了再生(sheng)(sheng)料生(sheng)(sheng)產(chan)，以降低產(chan)品成本，二是不(bu)(bu)具備生(sheng)(sheng)產(chan)資(zi)格(ge)(ge)小型企業。

4、導(dao)(dao)體(ti)(ti)(ti)(ti)電(dian)阻(zu)不(bu)合(he)格的(de)(de)(de)電(dian)線(xian)。導(dao)(dao)體(ti)(ti)(ti)(ti)電(dian)阻(zu)主要(yao)(yao)是(shi)考核電(dian)線(xian)電(dian)纜(lan)的(de)(de)(de)導(dao)(dao)體(ti)(ti)(ti)(ti)材(cai)料(liao)以(yi)及截面(mian)(mian)是(shi)否符合(he)的(de)(de)(de)重(zhong)(zhong)要(yao)(yao)指(zhi)標(biao)(biao)。當(dang)導(dao)(dao)體(ti)(ti)(ti)(ti)電(dian)阻(zu)超(chao)標(biao)(biao)時(shi)(shi)，就(jiu)增大了電(dian)流在線(xian)路上通過時(shi)(shi)的(de)(de)(de)損耗，加劇(ju)了電(dian)線(xian)電(dian)纜(lan)的(de)(de)(de)發(fa)熱。導(dao)(dao)體(ti)(ti)(ti)(ti)電(dian)阻(zu)不(bu)合(he)格的(de)(de)(de)原因，主要(yao)(yao)進企業(ye)為(wei)了降低成本，將占原材(cai)料(liao)成本80%的(de)(de)(de)銅(tong)(tong)材(cai)縮水，要(yao)(yao)么降低導(dao)(dao)體(ti)(ti)(ti)(ti)的(de)(de)(de)截面(mian)(mian)積，要(yao)(yao)么使(shi)用含雜質過高的(de)(de)(de)再生(sheng)銅(tong)(tong)，這樣致(zhi)使(shi)電(dian)線(xian)電(dian)纜(lan)的(de)(de)(de)導(dao)(dao)體(ti)(ti)(ti)(ti)電(dian)阻(zu)嚴重(zhong)(zhong)超(chao)標(biao)(biao)，在使(shi)用過程中除(chu)易引發(fa)火災，還會加速包(bao)覆在電(dian)線(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在購買電線電纜(lan)的過程中，消費者應注意以下幾個(ge)事

第(di)一、要觀察電線的外觀。合格產品的絕緣（護套(tao)）層柔(rou)軟、有韌(ren)性(xing)和伸縮性(xing)、表(biao)面層緊密(mi)、光滑、無粗(cu)糙感。如果包裹電線的塑料很容易被剝(bo)去(qu)，則存在塑料強度(du)不(bu)夠的問題。

第二、要看電線的截(jie)面。合(he)格產品的銅(tong)芯(xin)或(huo)鋁(lv)芯(xin)表(biao)面應該具有金屬光澤，表(biao)面發(fa)黑的銅(tong)或(huo)表(biao)面發(fa)白的鋁(lv)說明已被氧(yang)化(hua)。

第三(san)、在(zai)購買電線時(shi)應注意(yi)查看(kan)質量合(he)格證書。如果電線的質量合(he)格，那么其電線質量應該(gai)也受過檢驗，不會有太大的問(wen)題。

沈陽凱鵬(peng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)制(zhi)造有限(xian)公(gong)(gong)司隸屬(shu)凱鵬(peng)集團下屬(shu)子(zi)公(gong)(gong)司，專門從事電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)研發、生產(chan)制(zhi)造，是全國頗具實(shi)力的沈陽電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠(chang)家，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、橡套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣裝備(bei)用電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)等，以及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)代加工(gong)。小編每天會(hui)在公(gong)(gong)司官(guan)網發布電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)價格表(biao)，及(ji)(ji)時(shi)更新銅價以及(ji)(ji)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)廠(chang)報價信息(xi)。更多有關電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)信息(xi)可(ke)點(dian)擊(ji)公(gong)(gong)司官(guan)網szbowen.cn