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聚氯乙烯電纜

聚氯乙(yi)烯絕(jue)緣電(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)線(xian)產品分(fen)為固(gu)定(ding)布(bu)(bu)線(xian)用(yong)無(wu)保護(hu)(hu)套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、固(gu)定(ding)布(bu)(bu)線(xian)用(yong)護(hu)(hu)套(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)、輕(qing)型無(wu)護(hu)(hu)套(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)、一般用(yong)途(tu)護(hu)(hu)套(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)、安裝用(yong)電(dian)(dian)(dian)(dian)纜(lan)(lan)和(he)屏蔽電(dian)(dian)(dian)(dian)線(xian)、特殊用(yong)途(tu)保護(hu)(hu)套(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)、聚氯乙(yi)烯絕(jue)緣阻燃耐火電(dian)(dian)(dian)(dian)纜(lan)(lan)等(deng)產品

歷史

電(dian)(dian)線(xian)(xian)電(dian)(dian)纜(lan)行(xing)業(ye)(ye)是我國(guo)經濟(ji)建(jian)設的(de)(de)重(zhong)要配套產(chan)業(ye)(ye)，廣泛(fan)應用(yong)于國(guo)民經濟(ji)各(ge)個領域(yu)，占(zhan)據(ju)著中國(guo)電(dian)(dian)工行(xing)業(ye)(ye)1/4的(de)(de)行(xing)業(ye)(ye)，是機械工業(ye)(ye)中僅次于汽車行(xing)業(ye)(ye)的(de)(de)第二大產(chan)業(ye)(ye)。其中，室內裝(zhuang)修使用(yong)的(de)(de)電(dian)(dian)線(xian)(xian)主要是額定電(dian)(dian)壓(ya)450/750v及(ji)以下聚氯乙烯絕(jue)緣電(dian)(dian)纜(lan)，又(you)稱電(dian)(dian)線(xian)(xian)。

電線(xian)質(zhi)量的考核主要由專業(ye)檢驗機構進行檢驗，報告中主要的技術指(zhi)標(biao)有(you)以下(xia)：

1、導(dao)體(ti)直(zhi)流電(dian)(dian)阻。直(zhi)接(jie)反映電(dian)(dian)線的(de)載流能(neng)力，也(ye)就是通(tong)常(chang)所說能(neng)帶多(duo)大的(de)負載。該指標與(yu)導(dao)體(ti)材質(zhi)、導(dao)體(ti)截面積(ji)（電(dian)(dian)線規格）也(ye)就是線徑有(you)關

2、成品耐壓(ya)試驗。主要考核電(dian)線的絕緣是否有漏電(dian)。該指(zhi)標(biao)與絕緣的材料和制造工藝有關

3、絕緣（護套）厚(hou)度及機械性能(neng)等(deng)項目。主(zhu)要(yao)考核電(dian)線(xian)使(shi)用(yong)壽(shou)命及使(shi)用(yong)環境。絕緣厚(hou)度過薄(bo)或扁芯(xin)，容易在(zai)安裝或使(shi)用(yong)中(zhong)在(zai)薄(bo)的位置(zhi)發生破損，形成漏電(dian)。使(shi)用(yong)劣質絕緣材料(liao)的電(dian)線(xian)使(shi)用(yong)壽(shou)命短。

選購

1、首選(xuan)正(zheng)規廠(chang)家、商(shang)(shang)家產品。成(cheng)盤(pan)包(bao)裝的(de)(de)電線應(ying)有合格證，電線本體(ti)應(ying)印有廠(chang)名或商(shang)(shang)標、電壓、3C標志等。廠(chang)家假(jia)冒偽(wei)劣電線往往是(shi)“三(san)無”產品，但上面卻也(ye)有模(mo)棱兩可的(de)(de)產地(di)等標識，如中國制(zhi)造、中國某省或某市(shi)制(zhi)造等，這實際等于(yu)未標產地(di)。

2、布電線(xian)(xian)(xian)目前(qian)使用(yong)(yong)(yong)的(de)(de)(de)(de)導體材料主要(yao)有(you)銅(tong)(tong)(tong)和鋁。在選購時(shi)首先應(ying)(ying)根據使用(yong)(yong)(yong)的(de)(de)(de)(de)負載選擇(ze)相應(ying)(ying)的(de)(de)(de)(de)規(gui)(gui)格，如(ru)照明線(xian)(xian)(xian)路使用(yong)(yong)(yong)1.5平(ping)方毫(hao)米(mi)的(de)(de)(de)(de)鋁線(xian)(xian)(xian)或(huo)2.5平(ping)方毫(hao)米(mi)的(de)(de)(de)(de)鋁線(xian)(xian)(xian)，如(ru)空調、微波爐、烤箱等使用(yong)(yong)(yong)2.5平(ping)方毫(hao)米(mi)的(de)(de)(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)或(huo)4平(ping)方毫(hao)米(mi)的(de)(de)(de)(de)鋁線(xian)(xian)(xian)，選擇(ze)合(he)適規(gui)(gui)格的(de)(de)(de)(de)電線(xian)(xian)(xian)可避免(mian)由于小規(gui)(gui)格電線(xian)(xian)(xian)載流量不夠引起短(duan)路發(fa)生(sheng)火災；其次選購時(shi)應(ying)(ying)注意導體的(de)(de)(de)(de)質量，合(he)格的(de)(de)(de)(de)銅(tong)(tong)(tong)芯(xin)電線(xian)(xian)(xian)應(ying)(ying)使用(yong)(yong)(yong)紫紅色、有(you)光澤(ze)、手感軟的(de)(de)(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)，而(er)偽劣(lie)的(de)(de)(de)(de)銅(tong)(tong)(tong)芯(xin)線(xian)(xian)(xian)銅(tong)(tong)(tong)芯(xin)為紫黑(hei)色、偏黃或(huo)偏白，雜志多(duo)，機械強度差(cha)，韌勁不佳，稍用(yong)(yong)(yong)力即會折斷(duan)，而(er)且如(ru)果(guo)多(duo)股(gu)銅(tong)(tong)(tong)絲常有(you)斷(duan)線(xian)(xian)(xian)現象，使用(yong)(yong)(yong)壽命短(duan)。

3、布電(dian)(dian)線(xian)使(shi)用(yong)的外(wai)皮為聚氯乙烯(xi)絕緣材料(liao)。合格的電(dian)(dian)線(xian)絕緣應該外(wai)觀光滑、表面印(yin)字清晰。從電(dian)(dian)線(xian)頭觀察(cha)，絕緣應均勻，不偏芯。有些偽劣斷線(xian)絕緣層看(kan)上(shang)去似乎很厚實，實際(ji)上(shang)大多是用(yong)再生塑料(liao)制成的，時間一長(chang)，絕緣層會(hui)老(lao)化漏電(dian)(dian)。

4、質(zhi)量好的(de)電線，一般都在(zai)規定的(de)重量范圍內。價格(ge)上(shang)，由于(yu)假冒偽(wei)劣的(de)制作成(cheng)本低(di)，因此，商販在(zai)銷售時，常以物美價廉為幌(huang)子低(di)價銷售，讓(rang)人上(shang)當。

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