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

不合格電線電纜的危(wei)害

電(dian)線電(dian)纜是(shi)用于傳(chuan)輸電(dian)力、傳(chuan)輸信息和實現電(dian)磁能量轉(zhuan)換的一(yi)大類電(dian)工產品。在抽查過(guo)程中，發(fa)現了大量的不合(he)格(ge)產品，這些劣質產品給電(dian)力系(xi)統正(zheng)常運行埋下諸多(duo)隱患。

1、標志不合(he)格(ge)的(de)(de)電線電纜。標志是電線電纜使用識別產品基本信息的(de)(de)主(zhu)(zhu)要(yao)(yao)途徑，根據標準規定(ding)標志的(de)(de)主(zhu)(zhu)要(yao)(yao)內(nei)容(rong)是：產品型(xing)號、規格(ge)、標準號、廠名、產地等在一定(ding)的(de)(de)標示(shi)間距內(nei)，當標志不合(he)格(ge)時(shi)，會造成施工(gong)人(ren)員識別錯誤，嚴重時(shi)會引發電氣事(shi)故。

2、結(jie)構尺(chi)寸(cun)不(bu)合格(ge)的電(dian)(dian)線電(dian)(dian)纜(lan)。結(jie)構尺(chi)寸(cun)的主(zhu)要問題是護(hu)套(tao)厚度(du)，絕(jue)(jue)緣(yuan)厚度(du)，當電(dian)(dian)纜(lan)的護(hu)套(tao)和(he)(he)絕(jue)(jue)緣(yuan)厚度(du)不(bu)達標(biao)時(shi)，致使電(dian)(dian)線電(dian)(dian)纜(lan)耐電(dian)(dian)氣強(qiang)度(du)會嚴(yan)重降低，導致電(dian)(dian)線電(dian)(dian)纜(lan)的使用壽命縮短，嚴(yan)重時(shi)可導致電(dian)(dian)線電(dian)(dian)纜(lan)被擊穿，絕(jue)(jue)緣(yuan)（護(hu)套(tao)）層(ceng)起不(bu)到(dao)正常保護(hu)作用，從而發生電(dian)(dian)氣短路(lu)和(he)(he)火災等(deng)現象。

3、護套(tao)式絕緣(yuan)老(lao)化(hua)(hua)前的抗張強度、伸長(chang)率合(he)格(ge)(ge)的電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)。絕緣(yuan)護套(tao)老(lao)化(hua)(hua)前的抗張強度、伸長(chang)率不(bu)合(he)格(ge)(ge)直接大大縮短電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的工(gong)作用壽(shou)命，而且在施工(gong)或在長(chang)時間通電(dian)(dian)(dian)且溫(wen)度較(jiao)高(gao)的環境中，極易(yi)出(chu)現絕緣(yuan)體斷裂，致使帶電(dian)(dian)(dian)導體裸露，發(fa)生(sheng)能觸(chu)電(dian)(dian)(dian)式短路危險。其不(bu)合(he)格(ge)(ge)的主要原(yuan)因(yin)是使用了再生(sheng)料生(sheng)產(chan)，以降低產(chan)品成本，二是不(bu)具備(bei)生(sheng)產(chan)資格(ge)(ge)小型企業。

4、導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不合格(ge)(ge)的(de)(de)電(dian)(dian)線(xian)(xian)。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)主要(yao)是考核電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)材(cai)料以及(ji)截面是否符合的(de)(de)重(zhong)要(yao)指標(biao)(biao)。當(dang)導(dao)體(ti)(ti)電(dian)(dian)阻(zu)超(chao)(chao)標(biao)(biao)時，就增大了電(dian)(dian)流在(zai)線(xian)(xian)路(lu)上通過(guo)時的(de)(de)損耗，加劇了電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)發熱。導(dao)體(ti)(ti)電(dian)(dian)阻(zu)不合格(ge)(ge)的(de)(de)原因，主要(yao)進(jin)企業為了降低成本，將占原材(cai)料成本80%的(de)(de)銅材(cai)縮(suo)水，要(yao)么降低導(dao)體(ti)(ti)的(de)(de)截面積，要(yao)么使用(yong)含雜質過(guo)高(gao)的(de)(de)再(zai)生銅，這樣致使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)(de)導(dao)體(ti)(ti)電(dian)(dian)阻(zu)嚴(yan)重(zhong)超(chao)(chao)標(biao)(biao)，在(zai)使用(yong)過(guo)程中除(chu)易(yi)引發火災，還(huan)會加速包覆在(zai)電(dian)(dian)線(xian)(xian)外(wai)的(de)(de)絕(jue)緣層的(de)(de)老化。

在購買電線(xian)電纜(lan)的過程中，消費者(zhe)應注意以下幾個(ge)事

第一、要觀察電(dian)線的外觀。合格產品的絕緣（護(hu)套）層柔軟、有韌性和伸縮性、表(biao)面層緊密、光滑(hua)、無(wu)粗糙感。如(ru)果包裹(guo)電(dian)線的塑(su)料很(hen)容易被剝去，則存(cun)在塑(su)料強度不夠的問題。

第二、要看電(dian)線的(de)(de)截面。合(he)格產品的(de)(de)銅芯(xin)或鋁芯(xin)表(biao)面應(ying)該(gai)具有金屬光澤，表(biao)面發黑的(de)(de)銅或表(biao)面發白的(de)(de)鋁說明已(yi)被氧化。

第三、在購(gou)買(mai)電(dian)(dian)線(xian)時應(ying)注(zhu)意查看質量合(he)格證書。如果電(dian)(dian)線(xian)的(de)質量合(he)格，那么(me)其電(dian)(dian)線(xian)質量應(ying)該也受過檢驗，不(bu)會有太大(da)的(de)問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)制(zhi)造(zao)有限公司隸屬凱鵬集團(tuan)下屬子公司，專門(men)從(cong)事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)研(yan)發(fa)、生(sheng)產(chan)制(zhi)造(zao)，是(shi)全(quan)國頗具實力的沈陽電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)(chang)家，主營產(chan)品：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、橡(xiang)套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等(deng)，以(yi)(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)代(dai)加工。小編每天會在公司官(guan)網發(fa)布電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)價格(ge)表，及時更新(xin)銅價以(yi)(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)廠(chang)(chang)報(bao)價信息。更多有關電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)信息可點擊(ji)公司官(guan)網szbowen.cn