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)線(xian)電(dian)纜是用于(yu)傳輸電(dian)力、傳輸信(xin)息(xi)和(he)實現電(dian)磁能量轉換(huan)的一大(da)類電(dian)工產(chan)品(pin)。在抽查過程(cheng)中，發現了(le)大(da)量的不合(he)格產(chan)品(pin)，這些(xie)劣質產(chan)品(pin)給(gei)電(dian)力系統正(zheng)常運行(xing)埋下(xia)諸多隱患(huan)。

1、標志(zhi)不合格的電(dian)線電(dian)纜。標志(zhi)是電(dian)線電(dian)纜使用(yong)識(shi)別產品基本信息的主(zhu)要(yao)途徑，根據(ju)標準(zhun)(zhun)規定標志(zhi)的主(zhu)要(yao)內(nei)容(rong)是：產品型號、規格、標準(zhun)(zhun)號、廠(chang)名、產地等在(zai)一(yi)定的標示間距內(nei)，當標志(zhi)不合格時(shi)，會(hui)造(zao)成施工(gong)人(ren)員識(shi)別錯(cuo)誤，嚴重時(shi)會(hui)引發電(dian)氣事故。

2、結構尺寸不(bu)合格的電(dian)線(xian)電(dian)纜(lan)。結構尺寸的主要問題是護(hu)套(tao)厚度(du)(du)，絕緣(yuan)厚度(du)(du)，當電(dian)纜(lan)的護(hu)套(tao)和絕緣(yuan)厚度(du)(du)不(bu)達標時，致(zhi)使電(dian)線(xian)電(dian)纜(lan)耐電(dian)氣強(qiang)度(du)(du)會嚴重降低，導(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)的使用壽(shou)命縮短(duan)，嚴重時可導(dao)致(zhi)電(dian)線(xian)電(dian)纜(lan)被擊穿(chuan)，絕緣(yuan)（護(hu)套(tao)）層起不(bu)到正常保(bao)護(hu)作用，從而發生電(dian)氣短(duan)路和火災等現(xian)象。

3、護(hu)套式絕緣老(lao)化(hua)前的(de)(de)抗張強度、伸長(chang)(chang)率合格(ge)的(de)(de)電(dian)線電(dian)纜。絕緣護(hu)套老(lao)化(hua)前的(de)(de)抗張強度、伸長(chang)(chang)率不合格(ge)直接大(da)大(da)縮短(duan)(duan)電(dian)線電(dian)纜的(de)(de)工作用(yong)壽命(ming)，而且(qie)在(zai)施工或在(zai)長(chang)(chang)時間通電(dian)且(qie)溫度較高的(de)(de)環(huan)境中，極易出現絕緣體斷裂，致使帶(dai)電(dian)導(dao)體裸露，發生(sheng)能觸電(dian)式短(duan)(duan)路危險。其不合格(ge)的(de)(de)主(zhu)要(yao)原因(yin)是使用(yong)了再生(sheng)料(liao)生(sheng)產，以降低產品成本，二是不具備生(sheng)產資(zi)格(ge)小型企業。

4、導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)電(dian)(dian)(dian)(dian)線。導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)主要(yao)是考核電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)材料(liao)以及截面是否符合(he)的(de)(de)重要(yao)指(zhi)標。當導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)超標時，就增(zeng)大了電(dian)(dian)(dian)(dian)流在(zai)線路上通過時的(de)(de)損耗(hao)，加劇(ju)了電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)發熱。導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)原因，主要(yao)進(jin)企業為了降低成本，將占(zhan)原材料(liao)成本80%的(de)(de)銅材縮(suo)水，要(yao)么降低導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)的(de)(de)截面積，要(yao)么使(shi)用含雜質(zhi)過高的(de)(de)再生(sheng)銅，這樣(yang)致使(shi)電(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)纜的(de)(de)導(dao)(dao)(dao)(dao)體(ti)(ti)(ti)電(dian)(dian)(dian)(dian)阻(zu)嚴重超標，在(zai)使(shi)用過程中除易引(yin)發火災，還會加速包覆在(zai)電(dian)(dian)(dian)(dian)線外(wai)的(de)(de)絕(jue)緣層的(de)(de)老(lao)化。

在購買電(dian)線電(dian)纜的過程中，消費者應注意以下(xia)幾個事

第一、要觀察電線的(de)(de)外觀。合格產品的(de)(de)絕(jue)緣（護套）層柔軟、有韌性和伸(shen)縮(suo)性、表面層緊(jin)密、光滑、無粗糙感。如果(guo)包裹電線的(de)(de)塑(su)(su)料很容易被剝去，則存在塑(su)(su)料強度不夠的(de)(de)問題(ti)。

第二、要看電線(xian)的(de)截面(mian)。合格產品的(de)銅芯或鋁芯表面(mian)應該具有金屬光澤，表面(mian)發黑的(de)銅或表面(mian)發白的(de)鋁說明已(yi)被氧(yang)化。

第三、在購買電線時應(ying)注(zhu)意查看質量合(he)格證書。如果電線的(de)質量合(he)格，那么(me)其電線質量應(ying)該也受過(guo)檢(jian)驗，不會(hui)有(you)太大(da)的(de)問題。

沈陽凱(kai)鵬電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)制造有限公司隸(li)屬凱(kai)鵬集(ji)團(tuan)下(xia)屬子(zi)公司，專(zhuan)門從事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)研發(fa)、生(sheng)產制造，是全國頗具實(shi)力的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)家，主營產品(pin)：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、控(kong)制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、橡套(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等，以及電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)代加工。小(xiao)編每天會(hui)在(zai)公司官(guan)網發(fa)布電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)價格(ge)表，及時更(geng)新(xin)銅價以及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)廠(chang)報價信息。更(geng)多(duo)有關(guan)電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)信息可(ke)點擊公司官(guan)網szbowen.cn