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聚氯乙烯電纜

聚氯(lv)乙烯(xi)絕緣電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)電(dian)(dian)(dian)(dian)線(xian)產品分(fen)為固定(ding)(ding)布(bu)(bu)線(xian)用(yong)(yong)無保(bao)護(hu)(hu)套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、固定(ding)(ding)布(bu)(bu)線(xian)用(yong)(yong)護(hu)(hu)套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、輕型無護(hu)(hu)套(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、一般(ban)用(yong)(yong)途(tu)護(hu)(hu)套(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、安裝用(yong)(yong)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)和屏(ping)蔽電(dian)(dian)(dian)(dian)線(xian)、特殊(shu)用(yong)(yong)途(tu)保(bao)護(hu)(hu)套(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)、聚氯(lv)乙烯(xi)絕緣阻燃耐火電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)等產品

歷史

電(dian)(dian)線(xian)電(dian)(dian)纜行業(ye)(ye)是我國經濟(ji)建設的(de)重要配套產業(ye)(ye)，廣泛應用(yong)于國民經濟(ji)各個領(ling)域，占據著中國電(dian)(dian)工行業(ye)(ye)1/4的(de)行業(ye)(ye)，是機械工業(ye)(ye)中僅次于汽車行業(ye)(ye)的(de)第二大產業(ye)(ye)。其中，室(shi)內裝修使用(yong)的(de)電(dian)(dian)線(xian)主要是額(e)定電(dian)(dian)壓450/750v及以下(xia)聚氯(lv)乙(yi)烯(xi)絕緣電(dian)(dian)纜，又稱電(dian)(dian)線(xian)。

電線質量的考核主要由(you)專業檢驗機構進行(xing)檢驗，報(bao)告中(zhong)主要的技(ji)術指標有以下：

1、導體直流電(dian)阻(zu)。直接反映電(dian)線的(de)載流能力，也就是通常(chang)所說(shuo)能帶多大的(de)負載。該(gai)指(zhi)標與導體材質、導體截面(mian)積(ji)（電(dian)線規格）也就是線徑有關

2、成品耐壓試驗。主要考核(he)電(dian)線的(de)絕緣是否有(you)漏(lou)電(dian)。該指標與絕緣的(de)材料和制造工藝(yi)有(you)關(guan)

3、絕(jue)緣(yuan)（護套(tao)）厚(hou)度及(ji)機械性能等項目。主要考(kao)核電(dian)(dian)線使(shi)用(yong)(yong)壽命(ming)及(ji)使(shi)用(yong)(yong)環境。絕(jue)緣(yuan)厚(hou)度過薄或扁芯，容易在安裝或使(shi)用(yong)(yong)中在薄的(de)位(wei)置(zhi)發(fa)生破(po)損(sun)，形成漏(lou)電(dian)(dian)。使(shi)用(yong)(yong)劣質絕(jue)緣(yuan)材料的(de)電(dian)(dian)線使(shi)用(yong)(yong)壽命(ming)短。

選購

1、首(shou)選正規廠(chang)家(jia)、商(shang)家(jia)產(chan)品。成(cheng)盤包(bao)裝的電線應有(you)合格證(zheng)，電線本體應印(yin)有(you)廠(chang)名或(huo)商(shang)標(biao)、電壓、3C標(biao)志(zhi)等(deng)。廠(chang)家(jia)假冒(mao)偽劣電線往往是“三(san)無”產(chan)品，但上面卻(que)也有(you)模棱兩可的產(chan)地(di)等(deng)標(biao)識，如中國(guo)制(zhi)造、中國(guo)某(mou)省或(huo)某(mou)市制(zhi)造等(deng)，這實際等(deng)于未(wei)標(biao)產(chan)地(di)。

2、布(bu)電線(xian)(xian)(xian)目前(qian)使(shi)用的(de)(de)導(dao)體材料主要有(you)(you)銅(tong)(tong)(tong)和鋁(lv)。在選(xuan)(xuan)購時首先應(ying)根據使(shi)用的(de)(de)負載(zai)選(xuan)(xuan)擇相應(ying)的(de)(de)規格，如(ru)照(zhao)明線(xian)(xian)(xian)路(lu)使(shi)用1.5平方毫米(mi)的(de)(de)鋁(lv)線(xian)(xian)(xian)或2.5平方毫米(mi)的(de)(de)鋁(lv)線(xian)(xian)(xian)，如(ru)空調、微波(bo)爐、烤箱等使(shi)用2.5平方毫米(mi)的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)或4平方毫米(mi)的(de)(de)鋁(lv)線(xian)(xian)(xian)，選(xuan)(xuan)擇合適規格的(de)(de)電線(xian)(xian)(xian)可(ke)避(bi)免由于小規格電線(xian)(xian)(xian)載(zai)流量不夠引起短路(lu)發生火(huo)災；其次選(xuan)(xuan)購時應(ying)注意導(dao)體的(de)(de)質量，合格的(de)(de)銅(tong)(tong)(tong)芯(xin)電線(xian)(xian)(xian)應(ying)使(shi)用紫紅色、有(you)(you)光澤、手(shou)感軟的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)，而偽劣(lie)的(de)(de)銅(tong)(tong)(tong)芯(xin)線(xian)(xian)(xian)銅(tong)(tong)(tong)芯(xin)為紫黑色、偏黃(huang)或偏白，雜志(zhi)多，機械強(qiang)度(du)差，韌(ren)勁不佳(jia)，稍用力即會折(zhe)斷，而且如(ru)果多股銅(tong)(tong)(tong)絲(si)常有(you)(you)斷線(xian)(xian)(xian)現象(xiang)，使(shi)用壽(shou)命短。

3、布電線(xian)使用的(de)外(wai)皮(pi)為聚(ju)氯乙烯絕緣材料。合格的(de)電線(xian)絕緣應(ying)該外(wai)觀光(guang)滑、表面印字清晰。從電線(xian)頭觀察，絕緣應(ying)均勻，不偏芯(xin)。有些偽劣(lie)斷(duan)線(xian)絕緣層(ceng)(ceng)看上去似乎(hu)很厚實，實際上大(da)多是用再(zai)生塑料制成(cheng)的(de)，時間一長，絕緣層(ceng)(ceng)會老化漏電。

4、質量好(hao)的(de)電線(xian)，一般都在(zai)(zai)規定的(de)重(zhong)量范圍內。價格上，由于假冒偽劣(lie)的(de)制作(zuo)成本低，因(yin)此，商販在(zai)(zai)銷售(shou)時(shi)，常以物美價廉為幌(huang)子(zi)低價銷售(shou)，讓人(ren)上當(dang)。

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