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聚氯乙烯電纜

聚(ju)氯乙(yi)烯(xi)絕緣(yuan)(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)線產品分為固定(ding)布線用無保護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、固定(ding)布線用護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、輕型(xing)無護(hu)套(tao)(tao)軟(ruan)(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)、一般(ban)用途護(hu)套(tao)(tao)軟(ruan)(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)、安裝用電(dian)(dian)(dian)(dian)纜(lan)(lan)和屏(ping)蔽電(dian)(dian)(dian)(dian)線、特殊用途保護(hu)套(tao)(tao)軟(ruan)(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)、聚(ju)氯乙(yi)烯(xi)絕緣(yuan)(yuan)阻燃耐(nai)火電(dian)(dian)(dian)(dian)纜(lan)(lan)等(deng)產品

歷史

電(dian)線電(dian)纜行業是我國(guo)經濟(ji)建設的(de)重要配(pei)套產業，廣泛(fan)應(ying)用于國(guo)民經濟(ji)各個領域(yu)，占(zhan)據著中國(guo)電(dian)工行業1/4的(de)行業，是機械(xie)工業中僅(jin)次于汽車行業的(de)第二大產業。其中，室內裝修使用的(de)電(dian)線主要是額定電(dian)壓450/750v及以下聚氯(lv)乙烯(xi)絕緣電(dian)纜，又稱電(dian)線。

電線質量的(de)考(kao)核主要由專業檢(jian)驗(yan)機構進(jin)行檢(jian)驗(yan)，報(bao)告中主要的(de)技術指標有以下：

1、導(dao)(dao)體直流電(dian)(dian)阻。直接反映電(dian)(dian)線的(de)載流能力，也(ye)就(jiu)(jiu)是(shi)通常所說能帶(dai)多大的(de)負載。該指標(biao)與(yu)導(dao)(dao)體材質、導(dao)(dao)體截面積（電(dian)(dian)線規格）也(ye)就(jiu)(jiu)是(shi)線徑(jing)有(you)關

2、成(cheng)品(pin)耐(nai)壓試驗。主要考核電(dian)線的絕緣是否(fou)有漏電(dian)。該指標與絕緣的材料(liao)和(he)制造工(gong)藝有關(guan)

3、絕(jue)緣(yuan)（護套）厚(hou)度(du)及機(ji)械性能等(deng)項目。主(zhu)要考核電線(xian)使(shi)用(yong)(yong)(yong)壽(shou)命及使(shi)用(yong)(yong)(yong)環(huan)境。絕(jue)緣(yuan)厚(hou)度(du)過薄或扁(bian)芯，容易(yi)在安裝(zhuang)或使(shi)用(yong)(yong)(yong)中(zhong)在薄的位置發生破損(sun)，形成漏電。使(shi)用(yong)(yong)(yong)劣質絕(jue)緣(yuan)材料(liao)的電線(xian)使(shi)用(yong)(yong)(yong)壽(shou)命短。

選購

1、首(shou)選正(zheng)規廠家、商家產(chan)(chan)品。成(cheng)盤包裝的電線(xian)(xian)應(ying)有合格證，電線(xian)(xian)本(ben)體應(ying)印(yin)有廠名(ming)或(huo)商標(biao)(biao)、電壓、3C標(biao)(biao)志等。廠家假冒偽劣(lie)電線(xian)(xian)往往是“三無”產(chan)(chan)品，但上面(mian)卻也(ye)有模棱兩可的產(chan)(chan)地等標(biao)(biao)識，如中(zhong)國制造、中(zhong)國某(mou)省或(huo)某(mou)市制造等，這(zhe)實際等于未標(biao)(biao)產(chan)(chan)地。

2、布(bu)電(dian)線(xian)(xian)(xian)(xian)目(mu)前(qian)使(shi)用(yong)(yong)(yong)(yong)的(de)導體(ti)材料主要有銅(tong)和鋁。在選購時首先(xian)應根據(ju)使(shi)用(yong)(yong)(yong)(yong)的(de)負(fu)載選擇(ze)相應的(de)規(gui)格，如照(zhao)明線(xian)(xian)(xian)(xian)路使(shi)用(yong)(yong)(yong)(yong)1.5平方(fang)(fang)(fang)毫(hao)米的(de)鋁線(xian)(xian)(xian)(xian)或(huo)2.5平方(fang)(fang)(fang)毫(hao)米的(de)鋁線(xian)(xian)(xian)(xian)，如空調、微(wei)波爐、烤箱等使(shi)用(yong)(yong)(yong)(yong)2.5平方(fang)(fang)(fang)毫(hao)米的(de)銅(tong)線(xian)(xian)(xian)(xian)或(huo)4平方(fang)(fang)(fang)毫(hao)米的(de)鋁線(xian)(xian)(xian)(xian)，選擇(ze)合(he)適(shi)規(gui)格的(de)電(dian)線(xian)(xian)(xian)(xian)可(ke)避免(mian)由于小(xiao)規(gui)格電(dian)線(xian)(xian)(xian)(xian)載流(liu)量(liang)不夠引起短路發生火(huo)災；其次選購時應注(zhu)意導體(ti)的(de)質量(liang)，合(he)格的(de)銅(tong)芯電(dian)線(xian)(xian)(xian)(xian)應使(shi)用(yong)(yong)(yong)(yong)紫紅色(se)、有光澤、手感軟的(de)銅(tong)線(xian)(xian)(xian)(xian)，而偽(wei)劣的(de)銅(tong)芯線(xian)(xian)(xian)(xian)銅(tong)芯為紫黑色(se)、偏黃或(huo)偏白(bai)，雜志多，機械強度差，韌勁不佳，稍用(yong)(yong)(yong)(yong)力即會折斷(duan)，而且如果多股銅(tong)絲(si)常有斷(duan)線(xian)(xian)(xian)(xian)現(xian)象(xiang)，使(shi)用(yong)(yong)(yong)(yong)壽命短。

3、布(bu)電(dian)線使用(yong)的(de)外皮為聚氯乙烯絕緣(yuan)材料。合格的(de)電(dian)線絕緣(yuan)應該(gai)外觀光(guang)滑、表面印(yin)字清晰。從(cong)電(dian)線頭觀察，絕緣(yuan)應均(jun)勻，不偏芯(xin)。有(you)些偽劣斷(duan)線絕緣(yuan)層看上去似乎(hu)很厚(hou)實，實際上大多是用(yong)再(zai)生(sheng)塑料制(zhi)成的(de)，時間一長，絕緣(yuan)層會(hui)老化(hua)漏電(dian)。

4、質(zhi)量好的電線，一般(ban)都(dou)在規定的重量范圍內(nei)。價(jia)(jia)格上，由于假冒偽劣(lie)的制作成本低(di)，因(yin)此，商販在銷售(shou)時(shi)，常以物美價(jia)(jia)廉(lian)為幌(huang)子低(di)價(jia)(jia)銷售(shou)，讓人(ren)上當。

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