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聚氯乙烯電纜

聚(ju)氯乙烯絕(jue)(jue)緣(yuan)電(dian)(dian)纜(lan)電(dian)(dian)線(xian)(xian)產品分為固(gu)定(ding)布(bu)線(xian)(xian)用(yong)(yong)無(wu)保護(hu)套(tao)電(dian)(dian)纜(lan)、固(gu)定(ding)布(bu)線(xian)(xian)用(yong)(yong)護(hu)套(tao)電(dian)(dian)纜(lan)、輕型無(wu)護(hu)套(tao)軟電(dian)(dian)纜(lan)、一般用(yong)(yong)途護(hu)套(tao)軟電(dian)(dian)纜(lan)、安裝用(yong)(yong)電(dian)(dian)纜(lan)和屏蔽電(dian)(dian)線(xian)(xian)、特殊(shu)用(yong)(yong)途保護(hu)套(tao)軟電(dian)(dian)纜(lan)、聚(ju)氯乙烯絕(jue)(jue)緣(yuan)阻燃耐火電(dian)(dian)纜(lan)等產品

歷史

電(dian)(dian)線(xian)電(dian)(dian)纜(lan)行(xing)業(ye)(ye)(ye)是我國經濟建設的重要(yao)配套產業(ye)(ye)(ye)，廣泛應用于(yu)國民(min)經濟各個領域，占(zhan)據著中(zhong)(zhong)國電(dian)(dian)工(gong)行(xing)業(ye)(ye)(ye)1/4的行(xing)業(ye)(ye)(ye)，是機械工(gong)業(ye)(ye)(ye)中(zhong)(zhong)僅次(ci)于(yu)汽(qi)車行(xing)業(ye)(ye)(ye)的第二大產業(ye)(ye)(ye)。其(qi)中(zhong)(zhong)，室內(nei)裝修使用的電(dian)(dian)線(xian)主要(yao)是額(e)定電(dian)(dian)壓450/750v及以下聚(ju)氯乙(yi)烯(xi)絕緣電(dian)(dian)纜(lan)，又稱(cheng)電(dian)(dian)線(xian)。

電線(xian)質量的(de)考核(he)主(zhu)要(yao)由專業檢驗(yan)機構進行檢驗(yan)，報告中主(zhu)要(yao)的(de)技術指標有(you)以下：

1、導(dao)體(ti)直流電(dian)(dian)阻。直接(jie)反映電(dian)(dian)線(xian)的(de)載(zai)流能力，也就是通常所說能帶多大的(de)負載(zai)。該(gai)指標(biao)與導(dao)體(ti)材質、導(dao)體(ti)截(jie)面積（電(dian)(dian)線(xian)規格）也就是線(xian)徑有關

2、成品耐(nai)壓試驗。主要考核電線的絕緣是否有(you)(you)漏電。該指標與絕緣的材(cai)料(liao)和制(zhi)造工藝有(you)(you)關(guan)

3、絕(jue)緣（護套(tao)）厚度及機械性能等(deng)項目。主要(yao)考核電線使(shi)用(yong)壽命及使(shi)用(yong)環境。絕(jue)緣厚度過薄或扁(bian)芯，容易在安裝(zhuang)或使(shi)用(yong)中在薄的位(wei)置發生(sheng)破(po)損(sun)，形成漏電。使(shi)用(yong)劣質絕(jue)緣材料的電線使(shi)用(yong)壽命短。

選購

1、首選正規(gui)廠家、商(shang)家產(chan)(chan)品(pin)(pin)。成(cheng)盤包裝的電(dian)線應有合格證，電(dian)線本體(ti)應印有廠名或(huo)商(shang)標(biao)、電(dian)壓、3C標(biao)志等(deng)。廠家假冒偽劣電(dian)線往往是(shi)“三無”產(chan)(chan)品(pin)(pin)，但上面卻也有模棱兩可的產(chan)(chan)地(di)(di)等(deng)標(biao)識，如中國制(zhi)造、中國某省或(huo)某市(shi)制(zhi)造等(deng)，這實際等(deng)于未標(biao)產(chan)(chan)地(di)(di)。

2、布電(dian)(dian)線(xian)(xian)目前(qian)使用(yong)(yong)(yong)(yong)的(de)導體材(cai)料主(zhu)要(yao)有銅(tong)(tong)(tong)和鋁(lv)。在選購(gou)時(shi)首先應根據使用(yong)(yong)(yong)(yong)的(de)負(fu)載選擇相應的(de)規(gui)格(ge)(ge)，如照明線(xian)(xian)路(lu)使用(yong)(yong)(yong)(yong)1.5平方(fang)毫(hao)米(mi)(mi)的(de)鋁(lv)線(xian)(xian)或(huo)2.5平方(fang)毫(hao)米(mi)(mi)的(de)鋁(lv)線(xian)(xian)，如空調(diao)、微(wei)波爐、烤(kao)箱等使用(yong)(yong)(yong)(yong)2.5平方(fang)毫(hao)米(mi)(mi)的(de)銅(tong)(tong)(tong)線(xian)(xian)或(huo)4平方(fang)毫(hao)米(mi)(mi)的(de)鋁(lv)線(xian)(xian)，選擇合(he)適規(gui)格(ge)(ge)的(de)電(dian)(dian)線(xian)(xian)可避免由(you)于小規(gui)格(ge)(ge)電(dian)(dian)線(xian)(xian)載流量不(bu)夠引起短(duan)路(lu)發生(sheng)火災(zai)；其次(ci)選購(gou)時(shi)應注意導體的(de)質量，合(he)格(ge)(ge)的(de)銅(tong)(tong)(tong)芯電(dian)(dian)線(xian)(xian)應使用(yong)(yong)(yong)(yong)紫紅(hong)色、有光(guang)澤、手(shou)感軟的(de)銅(tong)(tong)(tong)線(xian)(xian)，而偽劣的(de)銅(tong)(tong)(tong)芯線(xian)(xian)銅(tong)(tong)(tong)芯為紫黑色、偏(pian)黃或(huo)偏(pian)白，雜志多，機械強(qiang)度差(cha)，韌勁不(bu)佳，稍用(yong)(yong)(yong)(yong)力即會折(zhe)斷，而且如果多股銅(tong)(tong)(tong)絲常有斷線(xian)(xian)現象，使用(yong)(yong)(yong)(yong)壽(shou)命短(duan)。

3、布電(dian)線使用的(de)外(wai)皮為(wei)聚氯乙烯絕緣材料。合格的(de)電(dian)線絕緣應該外(wai)觀光滑、表面印字清(qing)晰。從電(dian)線頭(tou)觀察，絕緣應均勻，不偏芯。有些偽劣斷線絕緣層看(kan)上去似乎很厚實，實際(ji)上大多是用再生(sheng)塑料制(zhi)成的(de)，時(shi)間一長，絕緣層會老化漏電(dian)。

4、質(zhi)量好的(de)電(dian)線，一般都在規定的(de)重量范圍內。價(jia)格上(shang)，由于(yu)假冒偽劣的(de)制作成本低，因此，商販在銷(xiao)售時，常以物(wu)美價(jia)廉為幌(huang)子(zi)低價(jia)銷(xiao)售，讓人上(shang)當(dang)。

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