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聚氯乙烯電纜

聚氯乙烯(xi)絕緣電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)電(dian)(dian)(dian)線產品分為固定布(bu)線用(yong)(yong)(yong)無(wu)保護套(tao)(tao)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、固定布(bu)線用(yong)(yong)(yong)護套(tao)(tao)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、輕(qing)型(xing)無(wu)護套(tao)(tao)軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、一般用(yong)(yong)(yong)途(tu)護套(tao)(tao)軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、安裝用(yong)(yong)(yong)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)和屏蔽電(dian)(dian)(dian)線、特殊用(yong)(yong)(yong)途(tu)保護套(tao)(tao)軟(ruan)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、聚氯乙烯(xi)絕緣阻(zu)燃耐火電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等產品

歷史

電(dian)(dian)線電(dian)(dian)纜行業(ye)是(shi)(shi)(shi)我國經濟建設的重要配套(tao)產業(ye)，廣泛應用于國民經濟各(ge)個領域，占據著中(zhong)國電(dian)(dian)工(gong)行業(ye)1/4的行業(ye)，是(shi)(shi)(shi)機械工(gong)業(ye)中(zhong)僅次于汽車(che)行業(ye)的第二大產業(ye)。其(qi)中(zhong)，室內裝修使(shi)用的電(dian)(dian)線主要是(shi)(shi)(shi)額定電(dian)(dian)壓450/750v及以下(xia)聚氯(lv)乙烯絕緣(yuan)電(dian)(dian)纜，又稱電(dian)(dian)線。

電線(xian)質量的考核主(zhu)要(yao)由(you)專業檢驗機(ji)構進(jin)行檢驗，報告(gao)中主(zhu)要(yao)的技術(shu)指標有以下：

1、導體直(zhi)流電阻。直(zhi)接反映電線(xian)的載流能力，也就(jiu)是通(tong)常所說(shuo)能帶多大的負載。該指標與導體材質、導體截(jie)面積（電線(xian)規(gui)格）也就(jiu)是線(xian)徑有(you)關

2、成品耐壓試驗。主要(yao)考核電(dian)線的絕(jue)緣(yuan)是否有漏電(dian)。該指標(biao)與絕(jue)緣(yuan)的材(cai)料和制造工藝有關

3、絕(jue)緣(yuan)（護套(tao)）厚度及(ji)(ji)機械性能(neng)等項目。主(zhu)要考核電線(xian)使(shi)(shi)用(yong)壽(shou)命(ming)及(ji)(ji)使(shi)(shi)用(yong)環境。絕(jue)緣(yuan)厚度過薄(bo)或扁(bian)芯，容易在安裝或使(shi)(shi)用(yong)中在薄(bo)的位置發生破損，形成漏電。使(shi)(shi)用(yong)劣質絕(jue)緣(yuan)材料的電線(xian)使(shi)(shi)用(yong)壽(shou)命(ming)短。

選購

1、首選正規廠家(jia)(jia)、商(shang)家(jia)(jia)產品。成盤包(bao)裝的電(dian)(dian)線(xian)應有合(he)格證，電(dian)(dian)線(xian)本(ben)體應印有廠名或(huo)商(shang)標(biao)、電(dian)(dian)壓、3C標(biao)志等(deng)(deng)。廠家(jia)(jia)假(jia)冒偽劣電(dian)(dian)線(xian)往往是“三無”產品，但上(shang)面(mian)卻(que)也(ye)有模棱(leng)兩可的產地等(deng)(deng)標(biao)識，如(ru)中國(guo)制造、中國(guo)某省或(huo)某市制造等(deng)(deng)，這(zhe)實際等(deng)(deng)于未(wei)標(biao)產地。

2、布電(dian)(dian)線(xian)(xian)(xian)(xian)目前使(shi)(shi)(shi)用的導體材料(liao)主(zhu)要有(you)銅(tong)和鋁。在選購(gou)時首先應(ying)根據(ju)使(shi)(shi)(shi)用的負載選擇相應(ying)的規(gui)格，如(ru)照明線(xian)(xian)(xian)(xian)路使(shi)(shi)(shi)用1.5平(ping)方(fang)毫(hao)米的鋁線(xian)(xian)(xian)(xian)或(huo)2.5平(ping)方(fang)毫(hao)米的鋁線(xian)(xian)(xian)(xian)，如(ru)空(kong)調、微波爐(lu)、烤箱等使(shi)(shi)(shi)用2.5平(ping)方(fang)毫(hao)米的銅(tong)線(xian)(xian)(xian)(xian)或(huo)4平(ping)方(fang)毫(hao)米的鋁線(xian)(xian)(xian)(xian)，選擇合(he)適規(gui)格的電(dian)(dian)線(xian)(xian)(xian)(xian)可避(bi)免(mian)由于小(xiao)規(gui)格電(dian)(dian)線(xian)(xian)(xian)(xian)載流量不夠(gou)引(yin)起短(duan)路發生火災；其次選購(gou)時應(ying)注意導體的質(zhi)量，合(he)格的銅(tong)芯電(dian)(dian)線(xian)(xian)(xian)(xian)應(ying)使(shi)(shi)(shi)用紫紅色(se)、有(you)光(guang)澤(ze)、手感(gan)軟的銅(tong)線(xian)(xian)(xian)(xian)，而偽劣的銅(tong)芯線(xian)(xian)(xian)(xian)銅(tong)芯為(wei)紫黑色(se)、偏(pian)黃或(huo)偏(pian)白，雜志多(duo)，機(ji)械強度差，韌勁不佳，稍用力即會折斷，而且如(ru)果多(duo)股銅(tong)絲(si)常有(you)斷線(xian)(xian)(xian)(xian)現(xian)象，使(shi)(shi)(shi)用壽命短(duan)。

3、布電(dian)線(xian)(xian)使用(yong)的(de)外皮為(wei)聚氯乙烯(xi)絕緣材料。合格的(de)電(dian)線(xian)(xian)絕緣應該外觀光滑、表(biao)面印字(zi)清晰。從電(dian)線(xian)(xian)頭觀察，絕緣應均勻，不(bu)偏芯(xin)。有些(xie)偽劣斷線(xian)(xian)絕緣層看上(shang)去似乎很厚實，實際上(shang)大多是用(yong)再生塑料制成的(de)，時間一長，絕緣層會老化漏電(dian)。

4、質量好的電線，一般都在規定的重量范圍內。價(jia)格上，由于(yu)假冒偽劣的制作成本低(di)，因此，商(shang)販(fan)在銷售(shou)(shou)時，常以物美(mei)價(jia)廉(lian)為幌子低(di)價(jia)銷售(shou)(shou)，讓人上當。

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