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(dian)線電(dian)纜的危害(hai)

電(dian)線電(dian)纜是用于傳輸電(dian)力、傳輸信(xin)息(xi)和實現(xian)電(dian)磁能量(liang)轉換的一大類電(dian)工產品(pin)。在抽查過程中，發現(xian)了大量(liang)的不合格產品(pin)，這些劣質產品(pin)給電(dian)力系統(tong)正常運(yun)行埋下諸多(duo)隱患。

1、標(biao)(biao)志(zhi)(zhi)(zhi)不合格的(de)電線電纜。標(biao)(biao)志(zhi)(zhi)(zhi)是(shi)電線電纜使用識別(bie)產品(pin)基本信息(xi)的(de)主要途徑，根(gen)據標(biao)(biao)準(zhun)(zhun)規定標(biao)(biao)志(zhi)(zhi)(zhi)的(de)主要內容是(shi)：產品(pin)型號(hao)、規格、標(biao)(biao)準(zhun)(zhun)號(hao)、廠名、產地等在一(yi)定的(de)標(biao)(biao)示間距內，當(dang)標(biao)(biao)志(zhi)(zhi)(zhi)不合格時，會造(zao)成(cheng)施工人(ren)員識別(bie)錯誤，嚴重時會引發(fa)電氣事(shi)故(gu)。

2、結構(gou)尺(chi)寸(cun)(cun)不合格的(de)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)。結構(gou)尺(chi)寸(cun)(cun)的(de)主要問題是護(hu)(hu)套(tao)厚度，絕緣(yuan)(yuan)厚度，當電(dian)(dian)(dian)纜(lan)的(de)護(hu)(hu)套(tao)和絕緣(yuan)(yuan)厚度不達標(biao)時，致(zhi)使(shi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)耐電(dian)(dian)(dian)氣(qi)強度會(hui)嚴重(zhong)降低，導致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)的(de)使(shi)用(yong)壽命縮短，嚴重(zhong)時可(ke)導致(zhi)電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)被擊穿(chuan)，絕緣(yuan)(yuan)（護(hu)(hu)套(tao)）層起不到(dao)正常(chang)保護(hu)(hu)作(zuo)用(yong)，從而發生(sheng)電(dian)(dian)(dian)氣(qi)短路和火災等(deng)現象。

3、護套式(shi)絕(jue)緣(yuan)老(lao)化前的(de)(de)抗(kang)張強(qiang)度、伸長率合(he)格的(de)(de)電(dian)線(xian)電(dian)纜。絕(jue)緣(yuan)護套老(lao)化前的(de)(de)抗(kang)張強(qiang)度、伸長率不合(he)格直(zhi)接(jie)大大縮短電(dian)線(xian)電(dian)纜的(de)(de)工(gong)作用(yong)壽命，而且(qie)在施工(gong)或在長時間通電(dian)且(qie)溫度較高的(de)(de)環境中，極(ji)易出現絕(jue)緣(yuan)體斷裂，致使帶電(dian)導(dao)體裸(luo)露，發生(sheng)(sheng)能(neng)觸(chu)電(dian)式(shi)短路危險。其不合(he)格的(de)(de)主要原因是使用(yong)了再(zai)生(sheng)(sheng)料(liao)生(sheng)(sheng)產(chan)(chan)，以(yi)降低產(chan)(chan)品成本，二是不具備生(sheng)(sheng)產(chan)(chan)資格小型(xing)企業。

4、導體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不合(he)格的(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)線。導體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)主要(yao)是考核電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)導體(ti)材料以及截(jie)面(mian)是否(fou)符合(he)的(de)(de)(de)重要(yao)指標(biao)。當導體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)超標(biao)時，就增大了(le)電(dian)(dian)(dian)(dian)(dian)(dian)流在(zai)線路(lu)上(shang)通(tong)過時的(de)(de)(de)損耗，加劇(ju)了(le)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)發熱。導體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)不合(he)格的(de)(de)(de)原因，主要(yao)進(jin)企業為(wei)了(le)降低(di)成本(ben)，將占原材料成本(ben)80%的(de)(de)(de)銅材縮水，要(yao)么(me)(me)降低(di)導體(ti)的(de)(de)(de)截(jie)面(mian)積，要(yao)么(me)(me)使(shi)(shi)用含雜質(zhi)過高(gao)的(de)(de)(de)再生(sheng)銅，這樣致使(shi)(shi)電(dian)(dian)(dian)(dian)(dian)(dian)線電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)的(de)(de)(de)導體(ti)電(dian)(dian)(dian)(dian)(dian)(dian)阻(zu)(zu)嚴重超標(biao)，在(zai)使(shi)(shi)用過程中(zhong)除易引發火災，還會加速(su)包覆在(zai)電(dian)(dian)(dian)(dian)(dian)(dian)線外的(de)(de)(de)絕緣(yuan)層的(de)(de)(de)老化。

在購(gou)買電線(xian)電纜的過程中，消費者應注意以(yi)下幾個事

第一(yi)、要觀察(cha)電線的(de)外(wai)觀。合格(ge)產品的(de)絕緣(yuan)（護套）層柔(rou)軟(ruan)、有韌性(xing)和伸縮性(xing)、表面層緊密、光滑、無粗糙感(gan)。如果包裹電線的(de)塑料很容(rong)易(yi)被(bei)剝去，則存在塑料強度不夠的(de)問題。

第二、要看電線(xian)的截面(mian)(mian)。合格產(chan)品的銅(tong)芯或鋁芯表(biao)面(mian)(mian)應該具有金(jin)屬(shu)光(guang)澤(ze)，表(biao)面(mian)(mian)發黑的銅(tong)或表(biao)面(mian)(mian)發白的鋁說(shuo)明已被氧化。

第三、在(zai)購(gou)買電線時(shi)應(ying)注(zhu)意(yi)查看(kan)質(zhi)量合(he)格證書(shu)。如果電線的質(zhi)量合(he)格，那么其電線質(zhi)量應(ying)該也受過檢驗，不(bu)會有太大的問題。

沈(shen)陽凱鵬電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)制(zhi)造有(you)限公(gong)司隸屬(shu)凱鵬集團下屬(shu)子公(gong)司，專門(men)從事電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)研發、生產(chan)制(zhi)造，是(shi)全國頗(po)具(ju)實(shi)力的沈(shen)陽電(dian)(dian)(dian)纜(lan)(lan)廠家，主營產(chan)品：電(dian)(dian)(dian)力電(dian)(dian)(dian)纜(lan)(lan)、控制(zhi)電(dian)(dian)(dian)纜(lan)(lan)、橡套電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)氣(qi)裝備用電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)、電(dian)(dian)(dian)子計算機電(dian)(dian)(dian)纜(lan)(lan)、BTTZ電(dian)(dian)(dian)纜(lan)(lan)、YTTW電(dian)(dian)(dian)纜(lan)(lan)等，以及電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)代加工。小編每天會在(zai)公(gong)司官(guan)網發布(bu)電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)價格(ge)表，及時更新(xin)銅(tong)價以及電(dian)(dian)(dian)纜(lan)(lan)廠報價信息。更多有(you)關電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)(lan)信息可(ke)點擊公(gong)司官(guan)網szbowen.cn