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聚氯乙烯電纜

聚(ju)(ju)氯乙烯(xi)絕(jue)緣電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)線產品(pin)分為固定(ding)(ding)布(bu)線用無(wu)保護(hu)套電(dian)(dian)(dian)(dian)纜(lan)(lan)、固定(ding)(ding)布(bu)線用護(hu)套電(dian)(dian)(dian)(dian)纜(lan)(lan)、輕型無(wu)護(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)、一般用途護(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)、安裝用電(dian)(dian)(dian)(dian)纜(lan)(lan)和(he)屏蔽電(dian)(dian)(dian)(dian)線、特(te)殊用途保護(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)、聚(ju)(ju)氯乙烯(xi)絕(jue)緣阻(zu)燃(ran)耐(nai)火電(dian)(dian)(dian)(dian)纜(lan)(lan)等產品(pin)

歷史

電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)行(xing)業(ye)是(shi)我國(guo)經(jing)濟建(jian)設的(de)重要(yao)配套(tao)產業(ye)，廣(guang)泛(fan)應用于(yu)國(guo)民經(jing)濟各個領域，占據著中(zhong)國(guo)電(dian)(dian)工(gong)(gong)行(xing)業(ye)1/4的(de)行(xing)業(ye)，是(shi)機(ji)械工(gong)(gong)業(ye)中(zhong)僅次于(yu)汽車(che)行(xing)業(ye)的(de)第二大產業(ye)。其中(zhong)，室內裝(zhuang)修使用的(de)電(dian)(dian)線(xian)(xian)主要(yao)是(shi)額定(ding)電(dian)(dian)壓450/750v及以下聚氯(lv)乙烯絕緣電(dian)(dian)纜(lan)，又(you)稱電(dian)(dian)線(xian)(xian)。

電線質量(liang)的(de)考核主要(yao)由專業檢驗機構進行檢驗，報告中主要(yao)的(de)技術指標有以下：

1、導(dao)(dao)體直(zhi)流(liu)電(dian)阻(zu)。直(zhi)接反映電(dian)線(xian)(xian)的載流(liu)能(neng)力(li)，也就(jiu)是(shi)通常(chang)所說能(neng)帶多大的負載。該指標與導(dao)(dao)體材質(zhi)、導(dao)(dao)體截面(mian)積（電(dian)線(xian)(xian)規格）也就(jiu)是(shi)線(xian)(xian)徑有關

2、成(cheng)品耐壓試驗。主要考核電線的(de)絕緣(yuan)是(shi)否(fou)有漏電。該指(zhi)標與(yu)絕緣(yuan)的(de)材(cai)料和(he)制造(zao)工(gong)藝有關

3、絕(jue)緣(yuan)(yuan)（護(hu)套(tao)）厚度(du)(du)及機械性能等項目(mu)。主要考核電(dian)線(xian)使(shi)用壽命及使(shi)用環境。絕(jue)緣(yuan)(yuan)厚度(du)(du)過薄或扁(bian)芯，容易在安(an)裝或使(shi)用中在薄的位(wei)置(zhi)發生破損，形成漏電(dian)。使(shi)用劣質絕(jue)緣(yuan)(yuan)材料的電(dian)線(xian)使(shi)用壽命短。

選購

1、首選正規(gui)廠家(jia)、商家(jia)產(chan)品。成盤包裝的電(dian)線應有合格證(zheng)，電(dian)線本(ben)體應印(yin)有廠名或商標(biao)(biao)、電(dian)壓、3C標(biao)(biao)志等(deng)。廠家(jia)假冒偽(wei)劣電(dian)線往往是“三(san)無”產(chan)品，但上面(mian)卻也有模棱兩可的產(chan)地等(deng)標(biao)(biao)識(shi)，如中國制造、中國某(mou)省或某(mou)市制造等(deng)，這實際等(deng)于(yu)未標(biao)(biao)產(chan)地。

2、布電(dian)線(xian)(xian)(xian)(xian)目(mu)前使用(yong)(yong)(yong)的(de)(de)(de)導體材料(liao)主要(yao)有(you)銅(tong)(tong)和鋁(lv)。在(zai)選(xuan)(xuan)購(gou)時首先應(ying)根據使用(yong)(yong)(yong)的(de)(de)(de)負載選(xuan)(xuan)擇相(xiang)應(ying)的(de)(de)(de)規格(ge)，如(ru)(ru)照明線(xian)(xian)(xian)(xian)路使用(yong)(yong)(yong)1.5平方(fang)(fang)毫(hao)(hao)米的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)或(huo)2.5平方(fang)(fang)毫(hao)(hao)米的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)，如(ru)(ru)空調、微波(bo)爐、烤箱等(deng)使用(yong)(yong)(yong)2.5平方(fang)(fang)毫(hao)(hao)米的(de)(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)或(huo)4平方(fang)(fang)毫(hao)(hao)米的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)，選(xuan)(xuan)擇合適規格(ge)的(de)(de)(de)電(dian)線(xian)(xian)(xian)(xian)可(ke)避免由于小規格(ge)電(dian)線(xian)(xian)(xian)(xian)載流量不夠引起短路發生火災；其次選(xuan)(xuan)購(gou)時應(ying)注意導體的(de)(de)(de)質量，合格(ge)的(de)(de)(de)銅(tong)(tong)芯電(dian)線(xian)(xian)(xian)(xian)應(ying)使用(yong)(yong)(yong)紫(zi)紅色(se)(se)、有(you)光澤、手感軟的(de)(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)，而偽劣的(de)(de)(de)銅(tong)(tong)芯線(xian)(xian)(xian)(xian)銅(tong)(tong)芯為紫(zi)黑色(se)(se)、偏(pian)黃(huang)或(huo)偏(pian)白，雜(za)志(zhi)多，機械(xie)強(qiang)度差，韌勁(jing)不佳，稍用(yong)(yong)(yong)力(li)即會折(zhe)斷，而且如(ru)(ru)果多股銅(tong)(tong)絲常有(you)斷線(xian)(xian)(xian)(xian)現象，使用(yong)(yong)(yong)壽命短。

3、布電(dian)(dian)線(xian)使(shi)用的(de)外皮為聚氯乙烯絕(jue)緣(yuan)(yuan)材料(liao)。合格的(de)電(dian)(dian)線(xian)絕(jue)緣(yuan)(yuan)應該(gai)外觀光滑(hua)、表面(mian)印字清晰(xi)。從電(dian)(dian)線(xian)頭觀察，絕(jue)緣(yuan)(yuan)應均勻，不偏(pian)芯。有(you)些偽劣斷(duan)線(xian)絕(jue)緣(yuan)(yuan)層看上(shang)(shang)去(qu)似乎很厚實(shi)，實(shi)際(ji)上(shang)(shang)大多(duo)是用再(zai)生塑料(liao)制成(cheng)的(de)，時(shi)間一(yi)長，絕(jue)緣(yuan)(yuan)層會老化漏電(dian)(dian)。

4、質量好的電線(xian)，一般都在規定(ding)的重量范(fan)圍內(nei)。價(jia)格上(shang)，由(you)于(yu)假冒偽劣的制作成本(ben)低，因此，商販在銷售時，常以物美價(jia)廉為(wei)幌子(zi)低價(jia)銷售，讓人上(shang)當。

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