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(he)格電線電纜(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)現電(dian)磁能量轉換的一(yi)大(da)類(lei)電(dian)工產品(pin)(pin)。在(zai)抽查過程中(zhong)，發(fa)現了大(da)量的不合格產品(pin)(pin)，這些劣質產品(pin)(pin)給電(dian)力系統正常運行埋(mai)下諸(zhu)多隱患。

1、標志(zhi)(zhi)(zhi)不(bu)合(he)格的(de)電(dian)(dian)線(xian)電(dian)(dian)纜(lan)。標志(zhi)(zhi)(zhi)是電(dian)(dian)線(xian)電(dian)(dian)纜(lan)使用識(shi)(shi)別產(chan)(chan)品基本信息的(de)主(zhu)要途徑，根據標準(zhun)規(gui)定標志(zhi)(zhi)(zhi)的(de)主(zhu)要內容是：產(chan)(chan)品型(xing)號、規(gui)格、標準(zhun)號、廠名、產(chan)(chan)地(di)等在一定的(de)標示間距內，當標志(zhi)(zhi)(zhi)不(bu)合(he)格時，會造成施工人員識(shi)(shi)別錯誤，嚴重時會引發電(dian)(dian)氣事故。

2、結構(gou)尺(chi)寸(cun)不(bu)(bu)合格的(de)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜。結構(gou)尺(chi)寸(cun)的(de)主要(yao)問題是護(hu)套(tao)厚度(du)，絕(jue)緣(yuan)(yuan)厚度(du)，當電(dian)(dian)纜的(de)護(hu)套(tao)和絕(jue)緣(yuan)(yuan)厚度(du)不(bu)(bu)達標時，致(zhi)使電(dian)(dian)線(xian)(xian)電(dian)(dian)纜耐電(dian)(dian)氣強度(du)會嚴(yan)重(zhong)降低，導(dao)致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜的(de)使用壽命縮短，嚴(yan)重(zhong)時可導(dao)致(zhi)電(dian)(dian)線(xian)(xian)電(dian)(dian)纜被擊穿，絕(jue)緣(yuan)(yuan)（護(hu)套(tao)）層起(qi)不(bu)(bu)到正常保(bao)護(hu)作用，從而發生電(dian)(dian)氣短路和火災等現象。

3、護套(tao)(tao)式(shi)絕緣老化(hua)前的抗張強度、伸長率合格(ge)(ge)的電(dian)線電(dian)纜。絕緣護套(tao)(tao)老化(hua)前的抗張強度、伸長率不合格(ge)(ge)直接大大縮短電(dian)線電(dian)纜的工作用壽命，而且在施工或在長時間通電(dian)且溫度較高(gao)的環(huan)境中，極易(yi)出現絕緣體(ti)(ti)斷裂(lie)，致(zhi)使(shi)(shi)帶(dai)電(dian)導體(ti)(ti)裸露(lu)，發(fa)生能(neng)觸電(dian)式(shi)短路危險(xian)。其不合格(ge)(ge)的主要原(yuan)因是使(shi)(shi)用了再生料生產，以(yi)降低產品成(cheng)本(ben)，二(er)是不具(ju)備(bei)生產資格(ge)(ge)小型(xing)企業(ye)。

4、導體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)不(bu)合(he)格的(de)(de)(de)電(dian)(dian)(dian)線(xian)。導體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)主(zhu)(zhu)要(yao)(yao)(yao)是考核電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)導體(ti)(ti)(ti)材料以及截面(mian)是否符合(he)的(de)(de)(de)重要(yao)(yao)(yao)指標(biao)。當導體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時，就增(zeng)大了(le)(le)電(dian)(dian)(dian)流在(zai)線(xian)路(lu)上通過(guo)時的(de)(de)(de)損耗，加(jia)劇了(le)(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)發熱。導體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)不(bu)合(he)格的(de)(de)(de)原因(yin)，主(zhu)(zhu)要(yao)(yao)(yao)進企業為(wei)了(le)(le)降低(di)(di)成本，將占原材料成本80%的(de)(de)(de)銅(tong)材縮水，要(yao)(yao)(yao)么降低(di)(di)導體(ti)(ti)(ti)的(de)(de)(de)截面(mian)積(ji)，要(yao)(yao)(yao)么使(shi)用(yong)含(han)雜質過(guo)高的(de)(de)(de)再生(sheng)銅(tong)，這樣(yang)致(zhi)使(shi)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)的(de)(de)(de)導體(ti)(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重超標(biao)，在(zai)使(shi)用(yong)過(guo)程中除(chu)易引發火災(zai)，還會加(jia)速包(bao)覆在(zai)電(dian)(dian)(dian)線(xian)外的(de)(de)(de)絕緣層的(de)(de)(de)老化。

在購(gou)買電(dian)線電(dian)纜(lan)的過程中，消費者應注意(yi)以下幾個事

第(di)一、要(yao)觀察電線的(de)外觀。合格產(chan)品(pin)的(de)絕緣（護套）層柔軟、有韌性(xing)和(he)伸縮性(xing)、表(biao)面層緊密、光滑、無粗糙感。如果包裹(guo)電線的(de)塑料很(hen)容(rong)易被剝去(qu)，則存在塑料強度不夠的(de)問題。

第(di)二、要看電線的截(jie)面(mian)(mian)。合(he)格產品的銅芯或鋁芯表面(mian)(mian)應該具有金屬(shu)光澤，表面(mian)(mian)發(fa)黑的銅或表面(mian)(mian)發(fa)白的鋁說明已被(bei)氧化。

第三、在(zai)購買(mai)電線(xian)時應(ying)注意(yi)查看質量合(he)格(ge)證書。如(ru)果(guo)電線(xian)的(de)質量合(he)格(ge)，那(nei)么其電線(xian)質量應(ying)該也受過檢驗，不會有太大的(de)問題。

沈陽凱鵬電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)制造有(you)限公司隸屬凱鵬集團下屬子(zi)公司，專門從事(shi)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)研發(fa)、生產(chan)制造，是全(quan)國頗具實(shi)力的(de)沈陽電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)家，主營產(chan)品(pin)：電(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)氣裝備用(yong)電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)子(zi)計算(suan)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，以及電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)代加工。小編每天會在公司官(guan)網(wang)發(fa)布電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)價格(ge)表，及時(shi)更新(xin)銅價以及電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)廠(chang)報(bao)價信息。更多(duo)有(you)關電(dian)(dian)(dian)(dian)線(xian)(xian)(xian)(xian)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)信息可點擊(ji)公司官(guan)網(wang)szbowen.cn