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聚氯乙烯電纜

聚氯乙(yi)烯(xi)絕緣電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)(dian)線(xian)產品分為固定布(bu)線(xian)用(yong)無(wu)保護套(tao)(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、固定布(bu)線(xian)用(yong)護套(tao)(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、輕型無(wu)護套(tao)(tao)軟電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、一般用(yong)途(tu)(tu)護套(tao)(tao)軟電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、安裝用(yong)電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和屏蔽電(dian)(dian)(dian)(dian)(dian)線(xian)、特殊用(yong)途(tu)(tu)保護套(tao)(tao)軟電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、聚氯乙(yi)烯(xi)絕緣阻(zu)燃耐火電(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等(deng)產品

歷史

電(dian)線電(dian)纜行(xing)業(ye)(ye)是(shi)(shi)我(wo)國(guo)經濟(ji)建設(she)的重要配套產(chan)業(ye)(ye)，廣泛應用(yong)于國(guo)民(min)經濟(ji)各個領(ling)域，占據(ju)著中國(guo)電(dian)工行(xing)業(ye)(ye)1/4的行(xing)業(ye)(ye)，是(shi)(shi)機械(xie)工業(ye)(ye)中僅(jin)次于汽(qi)車行(xing)業(ye)(ye)的第二(er)大(da)產(chan)業(ye)(ye)。其中，室內裝修(xiu)使用(yong)的電(dian)線主要是(shi)(shi)額定電(dian)壓450/750v及以下聚氯乙烯(xi)絕(jue)緣電(dian)纜，又稱電(dian)線。

電線質量的(de)考核主(zhu)要(yao)由專業檢(jian)(jian)驗機構進行檢(jian)(jian)驗，報(bao)告中(zhong)主(zhu)要(yao)的(de)技術指標有(you)以(yi)下：

1、導(dao)體直流電(dian)阻。直接(jie)反映電(dian)線(xian)的載流能(neng)(neng)力，也就是通常(chang)所說能(neng)(neng)帶多大的負載。該指標與導(dao)體材質、導(dao)體截面積（電(dian)線(xian)規(gui)格）也就是線(xian)徑有關

2、成品(pin)耐壓試(shi)驗。主要考核電線(xian)的絕(jue)緣是(shi)否(fou)有(you)漏電。該(gai)指標與絕(jue)緣的材料和制造工藝有(you)關

3、絕(jue)緣(yuan)(yuan)（護套）厚(hou)(hou)度及(ji)機(ji)械(xie)性能等項目。主要考核電線使(shi)用(yong)(yong)(yong)(yong)壽命(ming)及(ji)使(shi)用(yong)(yong)(yong)(yong)環境。絕(jue)緣(yuan)(yuan)厚(hou)(hou)度過薄或扁芯，容易(yi)在安裝或使(shi)用(yong)(yong)(yong)(yong)中在薄的(de)位置發生破(po)損，形成(cheng)漏電。使(shi)用(yong)(yong)(yong)(yong)劣質絕(jue)緣(yuan)(yuan)材(cai)料的(de)電線使(shi)用(yong)(yong)(yong)(yong)壽命(ming)短。

選購

1、首(shou)選正規廠家(jia)、商家(jia)產品。成盤包裝的(de)電(dian)線應(ying)(ying)有(you)合格(ge)證，電(dian)線本體(ti)應(ying)(ying)印(yin)有(you)廠名或(huo)商標(biao)、電(dian)壓、3C標(biao)志等(deng)(deng)。廠家(jia)假冒偽劣(lie)電(dian)線往(wang)往(wang)是“三無(wu)”產品，但上(shang)面(mian)卻也有(you)模棱兩可的(de)產地(di)等(deng)(deng)標(biao)識，如中國(guo)制(zhi)造、中國(guo)某(mou)(mou)省或(huo)某(mou)(mou)市制(zhi)造等(deng)(deng)，這實際等(deng)(deng)于未(wei)標(biao)產地(di)。

2、布電(dian)線(xian)(xian)目前使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)導體材料主要有銅和(he)鋁(lv)。在選(xuan)購(gou)時(shi)(shi)首先(xian)應根據使用(yong)(yong)(yong)的(de)(de)(de)(de)(de)(de)負(fu)載選(xuan)擇(ze)相應的(de)(de)(de)(de)(de)(de)規格，如(ru)照明線(xian)(xian)路使用(yong)(yong)(yong)1.5平方毫米的(de)(de)(de)(de)(de)(de)鋁(lv)線(xian)(xian)或2.5平方毫米的(de)(de)(de)(de)(de)(de)鋁(lv)線(xian)(xian)，如(ru)空(kong)調(diao)、微波爐(lu)、烤箱等使用(yong)(yong)(yong)2.5平方毫米的(de)(de)(de)(de)(de)(de)銅線(xian)(xian)或4平方毫米的(de)(de)(de)(de)(de)(de)鋁(lv)線(xian)(xian)，選(xuan)擇(ze)合(he)適規格的(de)(de)(de)(de)(de)(de)電(dian)線(xian)(xian)可(ke)避免由于小規格電(dian)線(xian)(xian)載流量不夠(gou)引起短路發生火災；其次選(xuan)購(gou)時(shi)(shi)應注意導體的(de)(de)(de)(de)(de)(de)質(zhi)量，合(he)格的(de)(de)(de)(de)(de)(de)銅芯電(dian)線(xian)(xian)應使用(yong)(yong)(yong)紫紅(hong)色、有光澤、手感軟的(de)(de)(de)(de)(de)(de)銅線(xian)(xian)，而偽劣的(de)(de)(de)(de)(de)(de)銅芯線(xian)(xian)銅芯為紫黑(hei)色、偏黃或偏白，雜志多(duo)(duo)，機械強度差，韌勁不佳，稍用(yong)(yong)(yong)力(li)即會折(zhe)斷，而且如(ru)果多(duo)(duo)股銅絲常有斷線(xian)(xian)現象，使用(yong)(yong)(yong)壽命短。

3、布電(dian)(dian)線使(shi)用的外(wai)皮為聚氯(lv)乙烯絕(jue)(jue)緣(yuan)材料。合格的電(dian)(dian)線絕(jue)(jue)緣(yuan)應該外(wai)觀光滑、表面印字清晰(xi)。從電(dian)(dian)線頭觀察，絕(jue)(jue)緣(yuan)應均勻，不偏(pian)芯。有些偽劣斷線絕(jue)(jue)緣(yuan)層看上去似乎很(hen)厚(hou)實(shi)，實(shi)際上大多(duo)是用再生(sheng)塑(su)料制(zhi)成(cheng)的，時間一長(chang)，絕(jue)(jue)緣(yuan)層會老化漏電(dian)(dian)。

4、質量(liang)好的電線，一般都在規定的重量(liang)范圍內。價(jia)格上，由(you)于假冒(mao)偽劣的制(zhi)作成本低(di)，因此，商販在銷售時，常以物(wu)美(mei)價(jia)廉(lian)為幌(huang)子(zi)低(di)價(jia)銷售，讓人(ren)上當。

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