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聚氯乙烯電纜

聚氯(lv)乙烯絕緣電(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)線(xian)(xian)產品(pin)分為固定(ding)布線(xian)(xian)用(yong)無保護(hu)(hu)套電(dian)(dian)(dian)(dian)纜(lan)、固定(ding)布線(xian)(xian)用(yong)護(hu)(hu)套電(dian)(dian)(dian)(dian)纜(lan)、輕型無護(hu)(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、一般用(yong)途護(hu)(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、安裝用(yong)電(dian)(dian)(dian)(dian)纜(lan)和(he)屏蔽電(dian)(dian)(dian)(dian)線(xian)(xian)、特殊(shu)用(yong)途保護(hu)(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、聚氯(lv)乙烯絕緣阻燃耐火電(dian)(dian)(dian)(dian)纜(lan)等產品(pin)

歷史

電(dian)(dian)(dian)線(xian)電(dian)(dian)(dian)纜(lan)行(xing)業(ye)是我國經濟建(jian)設(she)的重要配套產業(ye)，廣泛應用(yong)于國民經濟各個領域，占據著(zhu)中(zhong)國電(dian)(dian)(dian)工行(xing)業(ye)1/4的行(xing)業(ye)，是機械工業(ye)中(zhong)僅次于汽車行(xing)業(ye)的第二大產業(ye)。其(qi)中(zhong)，室(shi)內裝修使用(yong)的電(dian)(dian)(dian)線(xian)主要是額(e)定電(dian)(dian)(dian)壓450/750v及以下聚氯乙烯絕(jue)緣電(dian)(dian)(dian)纜(lan)，又稱電(dian)(dian)(dian)線(xian)。

電線(xian)質量的(de)考核主(zhu)要(yao)由(you)專業(ye)檢(jian)驗(yan)機構進(jin)行檢(jian)驗(yan)，報告中主(zhu)要(yao)的(de)技(ji)術(shu)指標有以(yi)下：

1、導(dao)體直流(liu)電(dian)阻。直接反(fan)映電(dian)線的載(zai)流(liu)能(neng)力，也(ye)就是(shi)通常所(suo)說能(neng)帶多大的負(fu)載(zai)。該(gai)指(zhi)標與(yu)導(dao)體材(cai)質、導(dao)體截面積（電(dian)線規格(ge)）也(ye)就是(shi)線徑(jing)有(you)關

2、成(cheng)品耐(nai)壓試驗。主要考(kao)核電(dian)線的絕(jue)緣(yuan)是否有漏電(dian)。該指標與絕(jue)緣(yuan)的材料和(he)制造工(gong)藝有關

3、絕緣(yuan)(yuan)（護套）厚(hou)度及機械性能等項目。主要考(kao)核(he)電(dian)線使(shi)用(yong)(yong)(yong)壽(shou)命(ming)及使(shi)用(yong)(yong)(yong)環(huan)境(jing)。絕緣(yuan)(yuan)厚(hou)度過薄或扁芯(xin)，容易在安裝或使(shi)用(yong)(yong)(yong)中(zhong)在薄的(de)位置發生破損(sun)，形成漏電(dian)。使(shi)用(yong)(yong)(yong)劣質絕緣(yuan)(yuan)材料(liao)的(de)電(dian)線使(shi)用(yong)(yong)(yong)壽(shou)命(ming)短。

選購

1、首選正規廠家、商家產品(pin)。成盤包裝的電(dian)線(xian)應有合格證，電(dian)線(xian)本體應印(yin)有廠名或(huo)商標、電(dian)壓、3C標志等。廠家假冒偽劣電(dian)線(xian)往往是“三無”產品(pin)，但上面卻也有模棱兩可的產地(di)等標識(shi)，如中(zhong)國制造(zao)、中(zhong)國某省或(huo)某市制造(zao)等，這(zhe)實(shi)際等于未標產地(di)。

2、布電(dian)線(xian)(xian)目前使(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)導體(ti)材料主要有銅(tong)和(he)鋁(lv)。在選購(gou)時首先應(ying)根據使(shi)(shi)用(yong)(yong)的(de)(de)(de)(de)負載選擇相應(ying)的(de)(de)(de)(de)規(gui)格，如(ru)照明線(xian)(xian)路使(shi)(shi)用(yong)(yong)1.5平(ping)方(fang)毫(hao)(hao)米的(de)(de)(de)(de)鋁(lv)線(xian)(xian)或2.5平(ping)方(fang)毫(hao)(hao)米的(de)(de)(de)(de)鋁(lv)線(xian)(xian)，如(ru)空調、微波爐、烤箱等使(shi)(shi)用(yong)(yong)2.5平(ping)方(fang)毫(hao)(hao)米的(de)(de)(de)(de)銅(tong)線(xian)(xian)或4平(ping)方(fang)毫(hao)(hao)米的(de)(de)(de)(de)鋁(lv)線(xian)(xian)，選擇合適規(gui)格的(de)(de)(de)(de)電(dian)線(xian)(xian)可避免由于小規(gui)格電(dian)線(xian)(xian)載流量不夠引起短(duan)(duan)路發生(sheng)火災(zai)；其(qi)次選購(gou)時應(ying)注意導體(ti)的(de)(de)(de)(de)質量，合格的(de)(de)(de)(de)銅(tong)芯電(dian)線(xian)(xian)應(ying)使(shi)(shi)用(yong)(yong)紫紅色、有光澤(ze)、手感軟的(de)(de)(de)(de)銅(tong)線(xian)(xian)，而偽劣(lie)的(de)(de)(de)(de)銅(tong)芯線(xian)(xian)銅(tong)芯為紫黑色、偏(pian)黃或偏(pian)白，雜志多(duo)，機械強度差，韌勁不佳，稍用(yong)(yong)力即會(hui)折斷，而且如(ru)果多(duo)股銅(tong)絲(si)常有斷線(xian)(xian)現象，使(shi)(shi)用(yong)(yong)壽命短(duan)(duan)。

3、布(bu)電(dian)(dian)線(xian)(xian)使(shi)用(yong)的(de)(de)外(wai)皮為聚氯乙烯絕緣材料。合格的(de)(de)電(dian)(dian)線(xian)(xian)絕緣應該外(wai)觀光(guang)滑(hua)、表面(mian)印字清(qing)晰。從電(dian)(dian)線(xian)(xian)頭觀察，絕緣應均勻(yun)，不(bu)偏(pian)芯。有些偽劣斷線(xian)(xian)絕緣層看上去似(si)乎很厚實，實際上大多是用(yong)再(zai)生塑料制成的(de)(de)，時(shi)間一(yi)長，絕緣層會老(lao)化(hua)漏電(dian)(dian)。

4、質量好的電線，一般都在規定的重量范(fan)圍內。價格(ge)上，由于(yu)假冒偽劣(lie)的制作(zuo)成(cheng)本低，因此，商販在銷售時，常以物(wu)美價廉(lian)為幌子(zi)低價銷售，讓人上當。

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