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害

電(dian)(dian)線電(dian)(dian)纜是用(yong)于傳輸(shu)電(dian)(dian)力(li)、傳輸(shu)信息和實現電(dian)(dian)磁能量(liang)轉(zhuan)換的一大類電(dian)(dian)工(gong)產品。在抽查(cha)過程中，發現了(le)大量(liang)的不合格產品，這些劣質產品給電(dian)(dian)力(li)系統(tong)正常運行埋(mai)下諸多隱患(huan)。

1、標(biao)志不合格(ge)的(de)電(dian)線(xian)電(dian)纜。標(biao)志是電(dian)線(xian)電(dian)纜使用識別(bie)產品基本信息的(de)主要途徑，根據標(biao)準規定(ding)標(biao)志的(de)主要內(nei)容是：產品型(xing)號(hao)、規格(ge)、標(biao)準號(hao)、廠名、產地等在一定(ding)的(de)標(biao)示(shi)間距內(nei)，當標(biao)志不合格(ge)時，會造成(cheng)施工人員識別(bie)錯誤，嚴重時會引發電(dian)氣事故(gu)。

2、結(jie)(jie)構(gou)尺寸不合(he)格(ge)的(de)電(dian)(dian)線(xian)電(dian)(dian)纜。結(jie)(jie)構(gou)尺寸的(de)主(zhu)要問(wen)題是護(hu)套(tao)厚度，絕緣厚度，當電(dian)(dian)纜的(de)護(hu)套(tao)和絕緣厚度不達標時，致(zhi)使電(dian)(dian)線(xian)電(dian)(dian)纜耐(nai)電(dian)(dian)氣強度會嚴(yan)重(zhong)降(jiang)低(di)，導(dao)致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜的(de)使用(yong)壽命縮短，嚴(yan)重(zhong)時可導(dao)致(zhi)電(dian)(dian)線(xian)電(dian)(dian)纜被(bei)擊(ji)穿，絕緣（護(hu)套(tao)）層(ceng)起不到正常保(bao)護(hu)作用(yong)，從而發生(sheng)電(dian)(dian)氣短路和火災等現象。

3、護(hu)套(tao)式絕緣老(lao)(lao)化(hua)前(qian)的(de)抗(kang)張強度(du)、伸(shen)長率合(he)格(ge)(ge)的(de)電線電纜。絕緣護(hu)套(tao)老(lao)(lao)化(hua)前(qian)的(de)抗(kang)張強度(du)、伸(shen)長率不合(he)格(ge)(ge)直接大大縮(suo)短電線電纜的(de)工(gong)作用(yong)壽命，而且(qie)在施工(gong)或在長時(shi)間(jian)通電且(qie)溫度(du)較高的(de)環境中(zhong)，極易出現絕緣體斷裂，致使(shi)(shi)帶電導體裸露，發(fa)生(sheng)(sheng)能觸電式短路(lu)危險。其不合(he)格(ge)(ge)的(de)主要原因是(shi)使(shi)(shi)用(yong)了再生(sheng)(sheng)料生(sheng)(sheng)產，以降低(di)產品(pin)成本，二(er)是(shi)不具備生(sheng)(sheng)產資(zi)格(ge)(ge)小型(xing)企業。

4、導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)電(dian)(dian)(dian)線(xian)。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)主要(yao)是(shi)考核(he)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)導(dao)(dao)體(ti)(ti)材料(liao)以及截面是(shi)否符合(he)的(de)(de)重要(yao)指標(biao)。當導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)超標(biao)時(shi)，就(jiu)增大了(le)電(dian)(dian)(dian)流在線(xian)路上通過時(shi)的(de)(de)損耗，加劇了(le)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)發(fa)熱。導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)不合(he)格的(de)(de)原(yuan)因，主要(yao)進企(qi)業為了(le)降低成本(ben)，將占原(yuan)材料(liao)成本(ben)80%的(de)(de)銅(tong)材縮水，要(yao)么(me)降低導(dao)(dao)體(ti)(ti)的(de)(de)截面積，要(yao)么(me)使用(yong)含雜質過高的(de)(de)再生銅(tong)，這(zhe)樣致使電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)的(de)(de)導(dao)(dao)體(ti)(ti)電(dian)(dian)(dian)阻(zu)嚴重超標(biao)，在使用(yong)過程中除易引發(fa)火災，還(huan)會加速包覆在電(dian)(dian)(dian)線(xian)外的(de)(de)絕緣層(ceng)的(de)(de)老化(hua)。

在購買電(dian)線(xian)電(dian)纜的(de)過程中(zhong)，消費者(zhe)應注意以下幾個事(shi)

第一、要觀察電線(xian)的(de)外觀。合格產品(pin)的(de)絕緣（護套）層柔軟、有(you)韌性和伸縮(suo)性、表面層緊(jin)密(mi)、光滑、無粗(cu)糙感。如(ru)果包裹電線(xian)的(de)塑料(liao)很容易被剝去，則(ze)存在塑料(liao)強度不夠(gou)的(de)問題。

第二(er)、要看電(dian)線的截面。合格產品的銅芯或鋁(lv)芯表面應該具有金屬光澤(ze)，表面發黑的銅或表面發白的鋁(lv)說明已被氧化(hua)。

第三(san)、在購買電線時應(ying)注(zhu)意查看質量(liang)合格(ge)證(zheng)書。如果電線的質量(liang)合格(ge)，那么其電線質量(liang)應(ying)該也受過(guo)檢驗(yan)，不會有太(tai)大的問題。

沈(shen)陽(yang)凱鵬電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)制造(zao)有限(xian)公(gong)司(si)隸屬(shu)凱鵬集團下屬(shu)子(zi)公(gong)司(si)，專門從事電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)研(yan)發(fa)、生(sheng)產制造(zao)，是全國(guo)頗具實力的(de)沈(shen)陽(yang)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠家，主營產品(pin)：電(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、控制電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、橡套電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)氣裝備用電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、電(dian)(dian)(dian)(dian)(dian)子(zi)計算機電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、BTTZ電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、YTTW電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等，以(yi)及電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)代加工。小編每天(tian)會在公(gong)司(si)官網(wang)發(fa)布電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)價格表，及時更新銅價以(yi)及電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)廠報價信息(xi)。更多有關電(dian)(dian)(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)信息(xi)可點擊公(gong)司(si)官網(wang)szbowen.cn