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聚氯乙烯電纜

聚氯乙烯絕緣(yuan)電(dian)(dian)纜電(dian)(dian)線產品分為固(gu)定布(bu)線用(yong)(yong)無(wu)保護套(tao)(tao)電(dian)(dian)纜、固(gu)定布(bu)線用(yong)(yong)護套(tao)(tao)電(dian)(dian)纜、輕型無(wu)護套(tao)(tao)軟(ruan)電(dian)(dian)纜、一般(ban)用(yong)(yong)途護套(tao)(tao)軟(ruan)電(dian)(dian)纜、安裝(zhuang)用(yong)(yong)電(dian)(dian)纜和屏蔽電(dian)(dian)線、特殊用(yong)(yong)途保護套(tao)(tao)軟(ruan)電(dian)(dian)纜、聚氯乙烯絕緣(yuan)阻燃耐火電(dian)(dian)纜等產品

歷史

電(dian)(dian)線電(dian)(dian)纜(lan)行(xing)業(ye)(ye)是我國(guo)(guo)(guo)經濟建設的重要(yao)(yao)配(pei)套(tao)產業(ye)(ye)，廣(guang)泛應用于國(guo)(guo)(guo)民經濟各個領域，占據著中(zhong)國(guo)(guo)(guo)電(dian)(dian)工(gong)行(xing)業(ye)(ye)1/4的行(xing)業(ye)(ye)，是機械工(gong)業(ye)(ye)中(zhong)僅次于汽車行(xing)業(ye)(ye)的第二大產業(ye)(ye)。其中(zhong)，室內裝修(xiu)使用的電(dian)(dian)線主要(yao)(yao)是額定電(dian)(dian)壓450/750v及(ji)以下聚氯乙烯絕緣電(dian)(dian)纜(lan)，又稱電(dian)(dian)線。

電線質量(liang)的考核(he)主(zhu)要(yao)由(you)專(zhuan)業(ye)檢驗(yan)機構(gou)進(jin)行檢驗(yan)，報告(gao)中主(zhu)要(yao)的技術指標有以下(xia)：

1、導體(ti)直流電(dian)阻。直接反映電(dian)線(xian)的(de)(de)載流能力，也(ye)就是通(tong)常所說(shuo)能帶多(duo)大(da)的(de)(de)負載。該指標與(yu)導體(ti)材質、導體(ti)截面積（電(dian)線(xian)規格）也(ye)就是線(xian)徑有關

2、成(cheng)品耐壓試驗。主要(yao)考核電(dian)線的絕緣(yuan)是否有漏電(dian)。該(gai)指標(biao)與絕緣(yuan)的材料和制造工藝有關

3、絕(jue)緣(yuan)(yuan)（護套）厚(hou)度(du)及機械性能等項目。主要考核電(dian)線使(shi)用(yong)壽命及使(shi)用(yong)環境。絕(jue)緣(yuan)(yuan)厚(hou)度(du)過薄或扁芯，容易在(zai)(zai)安裝或使(shi)用(yong)中在(zai)(zai)薄的位置發(fa)生(sheng)破損(sun)，形成漏電(dian)。使(shi)用(yong)劣質絕(jue)緣(yuan)(yuan)材料的電(dian)線使(shi)用(yong)壽命短。

選購

1、首選正規廠家(jia)、商(shang)家(jia)產(chan)(chan)品(pin)。成盤包裝的(de)電線應(ying)有(you)合格證，電線本體應(ying)印有(you)廠名(ming)或商(shang)標、電壓、3C標志等(deng)。廠家(jia)假冒(mao)偽劣電線往往是“三無”產(chan)(chan)品(pin)，但上面卻也有(you)模(mo)棱兩可的(de)產(chan)(chan)地等(deng)標識，如中國制(zhi)造、中國某省或某市制(zhi)造等(deng)，這(zhe)實(shi)際等(deng)于(yu)未標產(chan)(chan)地。

2、布(bu)電(dian)線(xian)目(mu)前使(shi)用(yong)(yong)(yong)的(de)(de)導體材料主要有(you)(you)銅(tong)(tong)(tong)(tong)和鋁。在選購時首先應(ying)根據使(shi)用(yong)(yong)(yong)的(de)(de)負載選擇(ze)(ze)相應(ying)的(de)(de)規格，如(ru)(ru)照明(ming)線(xian)路(lu)(lu)使(shi)用(yong)(yong)(yong)1.5平(ping)方(fang)毫米(mi)(mi)的(de)(de)鋁線(xian)或2.5平(ping)方(fang)毫米(mi)(mi)的(de)(de)鋁線(xian)，如(ru)(ru)空調、微波(bo)爐、烤箱(xiang)等使(shi)用(yong)(yong)(yong)2.5平(ping)方(fang)毫米(mi)(mi)的(de)(de)銅(tong)(tong)(tong)(tong)線(xian)或4平(ping)方(fang)毫米(mi)(mi)的(de)(de)鋁線(xian)，選擇(ze)(ze)合適規格的(de)(de)電(dian)線(xian)可避免由于小規格電(dian)線(xian)載流(liu)量(liang)不夠引(yin)起短(duan)路(lu)(lu)發(fa)生火災；其次(ci)選購時應(ying)注(zhu)意(yi)導體的(de)(de)質量(liang)，合格的(de)(de)銅(tong)(tong)(tong)(tong)芯(xin)電(dian)線(xian)應(ying)使(shi)用(yong)(yong)(yong)紫(zi)(zi)紅色、有(you)(you)光(guang)澤、手感軟的(de)(de)銅(tong)(tong)(tong)(tong)線(xian)，而(er)偽劣的(de)(de)銅(tong)(tong)(tong)(tong)芯(xin)線(xian)銅(tong)(tong)(tong)(tong)芯(xin)為(wei)紫(zi)(zi)黑色、偏(pian)(pian)黃或偏(pian)(pian)白，雜志多，機械強度差，韌(ren)勁(jing)不佳，稍用(yong)(yong)(yong)力即會折(zhe)斷(duan)，而(er)且(qie)如(ru)(ru)果多股銅(tong)(tong)(tong)(tong)絲常有(you)(you)斷(duan)線(xian)現象，使(shi)用(yong)(yong)(yong)壽命短(duan)。

3、布電(dian)(dian)線(xian)(xian)使用的(de)外(wai)(wai)皮為聚(ju)氯乙烯絕(jue)緣(yuan)材(cai)料。合格的(de)電(dian)(dian)線(xian)(xian)絕(jue)緣(yuan)應該外(wai)(wai)觀光滑、表面印字清晰(xi)。從電(dian)(dian)線(xian)(xian)頭觀察，絕(jue)緣(yuan)應均勻，不偏芯(xin)。有些偽(wei)劣(lie)斷(duan)線(xian)(xian)絕(jue)緣(yuan)層看上(shang)去似乎很厚實，實際上(shang)大(da)多是用再(zai)生塑料制成的(de)，時間一長，絕(jue)緣(yuan)層會老化漏電(dian)(dian)。

4、質量好的電線，一(yi)般都在(zai)規定的重量范圍內。價(jia)格上，由于(yu)假冒偽劣的制作成(cheng)本低，因此(ci)，商販在(zai)銷售(shou)時，常以物(wu)美價(jia)廉為幌子低價(jia)銷售(shou)，讓人上當。

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