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聚氯乙烯電纜

聚氯乙烯(xi)絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)線(xian)產品分為固定(ding)布(bu)線(xian)用(yong)(yong)無保(bao)護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、固定(ding)布(bu)線(xian)用(yong)(yong)護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、輕型(xing)無護(hu)套(tao)(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)、一般用(yong)(yong)途護(hu)套(tao)(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)、安(an)裝用(yong)(yong)電(dian)(dian)(dian)(dian)纜(lan)(lan)和(he)屏蔽電(dian)(dian)(dian)(dian)線(xian)、特殊用(yong)(yong)途保(bao)護(hu)套(tao)(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)、聚氯乙烯(xi)絕(jue)緣(yuan)阻燃(ran)耐火電(dian)(dian)(dian)(dian)纜(lan)(lan)等產品

歷史

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜(lan)行(xing)業(ye)(ye)是(shi)(shi)我國(guo)(guo)經濟建設的重要配套產(chan)業(ye)(ye)，廣泛應用(yong)于國(guo)(guo)民經濟各個(ge)領域(yu)，占據著中國(guo)(guo)電(dian)(dian)(dian)工行(xing)業(ye)(ye)1/4的行(xing)業(ye)(ye)，是(shi)(shi)機械工業(ye)(ye)中僅次于汽車行(xing)業(ye)(ye)的第二(er)大(da)產(chan)業(ye)(ye)。其中，室內裝修使用(yong)的電(dian)(dian)(dian)線主要是(shi)(shi)額定電(dian)(dian)(dian)壓(ya)450/750v及以下聚氯(lv)乙烯絕緣電(dian)(dian)(dian)纜(lan)，又稱電(dian)(dian)(dian)線。

電線質量的(de)考(kao)核主(zhu)(zhu)要由專業(ye)檢驗(yan)機構進行檢驗(yan)，報告(gao)中主(zhu)(zhu)要的(de)技(ji)術(shu)指標有(you)以(yi)下：

1、導(dao)體直流電(dian)阻。直接反映電(dian)線的載流能(neng)力，也就是通常所說能(neng)帶多(duo)大的負(fu)載。該(gai)指標與導(dao)體材質、導(dao)體截面積（電(dian)線規(gui)格）也就是線徑有關

2、成品(pin)耐(nai)壓(ya)試驗。主(zhu)要考核(he)電(dian)(dian)線的絕緣是否有(you)漏電(dian)(dian)。該指標與絕緣的材料(liao)和制造工藝有(you)關

3、絕緣（護套）厚(hou)度(du)及機械性能等項目。主要考核(he)電(dian)線使用壽命及使用環境(jing)。絕緣厚(hou)度(du)過薄或扁芯，容易在安裝或使用中在薄的(de)位置發生破損(sun)，形成(cheng)漏(lou)電(dian)。使用劣質(zhi)絕緣材料的(de)電(dian)線使用壽命短(duan)。

選購

1、首選正規廠家、商家產(chan)品(pin)。成盤包裝的電(dian)線(xian)應(ying)有合格(ge)證，電(dian)線(xian)本體(ti)應(ying)印(yin)有廠名(ming)或商標(biao)、電(dian)壓、3C標(biao)志等(deng)。廠家假冒偽劣電(dian)線(xian)往往是“三(san)無(wu)”產(chan)品(pin)，但上(shang)面卻也有模棱(leng)兩可的產(chan)地等(deng)標(biao)識，如(ru)中國(guo)制(zhi)(zhi)造、中國(guo)某(mou)(mou)省或某(mou)(mou)市(shi)制(zhi)(zhi)造等(deng)，這實際等(deng)于未標(biao)產(chan)地。

2、布電(dian)線(xian)(xian)(xian)(xian)目前使(shi)(shi)用(yong)的導體材料主(zhu)要有(you)銅(tong)和鋁(lv)。在選購時首(shou)先(xian)應根據使(shi)(shi)用(yong)的負載選擇相應的規(gui)格，如照明線(xian)(xian)(xian)(xian)路使(shi)(shi)用(yong)1.5平方(fang)毫(hao)米的鋁(lv)線(xian)(xian)(xian)(xian)或2.5平方(fang)毫(hao)米的鋁(lv)線(xian)(xian)(xian)(xian)，如空(kong)調、微波爐、烤箱等使(shi)(shi)用(yong)2.5平方(fang)毫(hao)米的銅(tong)線(xian)(xian)(xian)(xian)或4平方(fang)毫(hao)米的鋁(lv)線(xian)(xian)(xian)(xian)，選擇合(he)適(shi)規(gui)格的電(dian)線(xian)(xian)(xian)(xian)可(ke)避免由于(yu)小規(gui)格電(dian)線(xian)(xian)(xian)(xian)載流量不(bu)夠引起短路發生火災；其(qi)次選購時應注意導體的質量，合(he)格的銅(tong)芯(xin)電(dian)線(xian)(xian)(xian)(xian)應使(shi)(shi)用(yong)紫(zi)紅色(se)、有(you)光澤、手感軟的銅(tong)線(xian)(xian)(xian)(xian)，而偽(wei)劣(lie)的銅(tong)芯(xin)線(xian)(xian)(xian)(xian)銅(tong)芯(xin)為紫(zi)黑色(se)、偏黃或偏白(bai)，雜志多，機械(xie)強度(du)差，韌(ren)勁不(bu)佳，稍用(yong)力(li)即會折斷，而且如果多股銅(tong)絲常(chang)有(you)斷線(xian)(xian)(xian)(xian)現象，使(shi)(shi)用(yong)壽命短。

3、布(bu)電線(xian)使用的(de)外皮為聚氯乙烯(xi)絕(jue)(jue)緣(yuan)材料。合格的(de)電線(xian)絕(jue)(jue)緣(yuan)應該外觀(guan)光滑(hua)、表面(mian)印(yin)字清(qing)晰。從電線(xian)頭觀(guan)察，絕(jue)(jue)緣(yuan)應均勻，不偏芯(xin)。有些偽劣斷(duan)線(xian)絕(jue)(jue)緣(yuan)層(ceng)看上去似乎很(hen)厚實(shi)，實(shi)際(ji)上大多是(shi)用再生塑料制(zhi)成的(de)，時(shi)間(jian)一(yi)長，絕(jue)(jue)緣(yuan)層(ceng)會老(lao)化(hua)漏電。

4、質量好的(de)電(dian)線，一般都在規定(ding)的(de)重量范圍內。價(jia)格(ge)上，由(you)于假冒偽劣(lie)的(de)制作成本低(di)，因此，商(shang)販在銷售時，常以物美價(jia)廉為幌(huang)子低(di)價(jia)銷售，讓(rang)人上當。

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