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聚氯乙烯電纜

聚(ju)氯乙烯絕緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)電(dian)(dian)(dian)(dian)線(xian)產品(pin)分(fen)為固(gu)定布(bu)線(xian)用無(wu)保護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、固(gu)定布(bu)線(xian)用護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、輕型無(wu)護(hu)套(tao)(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、一(yi)般用途(tu)護(hu)套(tao)(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、安裝用電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)和屏蔽電(dian)(dian)(dian)(dian)線(xian)、特殊用途(tu)保護(hu)套(tao)(tao)軟電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、聚(ju)氯乙烯絕緣(yuan)阻燃耐火電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等(deng)產品(pin)

歷史

電(dian)線(xian)電(dian)纜行(xing)業(ye)是(shi)我國經濟建設(she)的重要配套產業(ye)，廣泛應用(yong)于(yu)國民經濟各個領域，占據著中(zhong)(zhong)國電(dian)工行(xing)業(ye)1/4的行(xing)業(ye)，是(shi)機械工業(ye)中(zhong)(zhong)僅(jin)次(ci)于(yu)汽車行(xing)業(ye)的第二(er)大產業(ye)。其中(zhong)(zhong)，室內裝修使用(yong)的電(dian)線(xian)主(zhu)要是(shi)額(e)定(ding)電(dian)壓450/750v及以(yi)下聚氯乙(yi)烯(xi)絕緣電(dian)纜，又稱電(dian)線(xian)。

電線(xian)質量的考核主要由(you)專業檢驗(yan)機構進行檢驗(yan)，報(bao)告中(zhong)主要的技術(shu)指標有以下：

1、導體直流(liu)電(dian)阻。直接(jie)反映電(dian)線(xian)的載(zai)流(liu)能力，也(ye)就是通(tong)常(chang)所說(shuo)能帶多大的負載(zai)。該指標與導體材質、導體截(jie)面積(ji)（電(dian)線(xian)規格）也(ye)就是線(xian)徑有關(guan)

2、成品耐壓試(shi)驗。主要考(kao)核電(dian)線的絕(jue)緣是否有漏電(dian)。該(gai)指標與絕(jue)緣的材料和制造工藝(yi)有關

3、絕緣（護套）厚(hou)度及機(ji)械性能等項目(mu)。主(zhu)要考核電(dian)線使用(yong)(yong)壽(shou)命(ming)及使用(yong)(yong)環境。絕緣厚(hou)度過薄或(huo)扁芯，容易在安裝或(huo)使用(yong)(yong)中在薄的位置發生破損，形成漏電(dian)。使用(yong)(yong)劣質(zhi)絕緣材料(liao)的電(dian)線使用(yong)(yong)壽(shou)命(ming)短。

選購

1、首選(xuan)正(zheng)規廠(chang)家、商家產品(pin)。成盤包裝的(de)電線應有(you)合格證(zheng)，電線本體應印有(you)廠(chang)名或商標(biao)、電壓(ya)、3C標(biao)志等(deng)。廠(chang)家假冒偽劣(lie)電線往(wang)往(wang)是“三無”產品(pin)，但上面(mian)卻(que)也有(you)模(mo)棱兩可(ke)的(de)產地(di)等(deng)標(biao)識，如中(zhong)國(guo)制(zhi)造、中(zhong)國(guo)某(mou)(mou)省或某(mou)(mou)市(shi)制(zhi)造等(deng)，這(zhe)實(shi)際等(deng)于未標(biao)產地(di)。

2、布電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)目前使(shi)用(yong)(yong)的導體材料主要有(you)(you)銅和鋁(lv)(lv)。在(zai)選購時首先應(ying)根據使(shi)用(yong)(yong)的負(fu)載選擇(ze)相應(ying)的規格(ge)，如(ru)照明(ming)線(xian)(xian)(xian)(xian)(xian)路(lu)使(shi)用(yong)(yong)1.5平方(fang)毫米(mi)的鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)或2.5平方(fang)毫米(mi)的鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)，如(ru)空調(diao)、微波爐、烤箱等使(shi)用(yong)(yong)2.5平方(fang)毫米(mi)的銅線(xian)(xian)(xian)(xian)(xian)或4平方(fang)毫米(mi)的鋁(lv)(lv)線(xian)(xian)(xian)(xian)(xian)，選擇(ze)合(he)(he)適規格(ge)的電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)可避免由于小規格(ge)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)載流量(liang)不夠引起短(duan)路(lu)發生火災；其次選購時應(ying)注意(yi)導體的質(zhi)量(liang)，合(he)(he)格(ge)的銅芯電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)應(ying)使(shi)用(yong)(yong)紫紅(hong)色、有(you)(you)光澤、手感軟(ruan)的銅線(xian)(xian)(xian)(xian)(xian)，而偽劣(lie)的銅芯線(xian)(xian)(xian)(xian)(xian)銅芯為紫黑色、偏黃或偏白，雜志(zhi)多(duo)，機械強度差(cha)，韌勁不佳，稍(shao)用(yong)(yong)力即會(hui)折斷(duan)，而且如(ru)果多(duo)股銅絲常有(you)(you)斷(duan)線(xian)(xian)(xian)(xian)(xian)現象，使(shi)用(yong)(yong)壽命(ming)短(duan)。

3、布(bu)電線使用(yong)的(de)外皮(pi)為聚氯乙烯絕(jue)(jue)緣(yuan)(yuan)材料。合格的(de)電線絕(jue)(jue)緣(yuan)(yuan)應該外觀光滑(hua)、表(biao)面印字(zi)清晰。從電線頭(tou)觀察，絕(jue)(jue)緣(yuan)(yuan)應均勻(yun)，不偏芯。有些偽劣斷(duan)線絕(jue)(jue)緣(yuan)(yuan)層看上(shang)(shang)去(qu)似乎很厚實，實際(ji)上(shang)(shang)大多是用(yong)再生塑料制成的(de)，時間一長，絕(jue)(jue)緣(yuan)(yuan)層會老化漏電。

4、質量(liang)好的電線，一般都在規定的重量(liang)范圍(wei)內。價(jia)格上，由于假冒偽劣的制作(zuo)成本低，因此，商販在銷售(shou)時，常(chang)以(yi)物美價(jia)廉(lian)為幌子低價(jia)銷售(shou)，讓人上當。

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