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聚氯乙烯電纜

聚氯(lv)乙(yi)烯(xi)絕緣電(dian)纜(lan)電(dian)線產品分(fen)為固(gu)定(ding)布線用(yong)無保(bao)護套電(dian)纜(lan)、固(gu)定(ding)布線用(yong)護套電(dian)纜(lan)、輕型無護套軟電(dian)纜(lan)、一般用(yong)途護套軟電(dian)纜(lan)、安裝用(yong)電(dian)纜(lan)和(he)屏蔽電(dian)線、特殊用(yong)途保(bao)護套軟電(dian)纜(lan)、聚氯(lv)乙(yi)烯(xi)絕緣阻燃(ran)耐火電(dian)纜(lan)等產品

歷史

電(dian)線(xian)電(dian)纜行(xing)業(ye)(ye)(ye)是(shi)我國(guo)經濟建設的(de)重要(yao)配套產(chan)業(ye)(ye)(ye)，廣(guang)泛(fan)應用(yong)于國(guo)民(min)經濟各個領(ling)域(yu)，占據(ju)著(zhu)中國(guo)電(dian)工(gong)行(xing)業(ye)(ye)(ye)1/4的(de)行(xing)業(ye)(ye)(ye)，是(shi)機械工(gong)業(ye)(ye)(ye)中僅次(ci)于汽車行(xing)業(ye)(ye)(ye)的(de)第二大產(chan)業(ye)(ye)(ye)。其中，室(shi)內裝修使用(yong)的(de)電(dian)線(xian)主要(yao)是(shi)額定電(dian)壓450/750v及以下聚氯乙(yi)烯絕緣(yuan)電(dian)纜，又(you)稱電(dian)線(xian)。

電(dian)線(xian)質量的考核主要(yao)由專業檢(jian)驗(yan)機構進行(xing)檢(jian)驗(yan)，報(bao)告中主要(yao)的技術指標有(you)以(yi)下：

1、導體直(zhi)流(liu)電(dian)阻(zu)。直(zhi)接反映電(dian)線的載流(liu)能力，也(ye)(ye)就是通(tong)常(chang)所說(shuo)能帶多大的負載。該指標與導體材質、導體截面積（電(dian)線規格）也(ye)(ye)就是線徑有關

2、成品(pin)耐壓試驗。主要(yao)考核電(dian)線的絕(jue)緣是否有漏電(dian)。該指標與絕(jue)緣的材(cai)料和制造工藝有關

3、絕(jue)緣（護套）厚度及機械性能等項目(mu)。主要考(kao)核(he)電(dian)線使(shi)(shi)用(yong)壽命及使(shi)(shi)用(yong)環(huan)境(jing)。絕(jue)緣厚度過薄或扁芯(xin)，容易在安(an)裝(zhuang)或使(shi)(shi)用(yong)中在薄的(de)位置發(fa)生破(po)損(sun)，形成漏電(dian)。使(shi)(shi)用(yong)劣質絕(jue)緣材(cai)料(liao)的(de)電(dian)線使(shi)(shi)用(yong)壽命短。

選購

1、首選正規廠(chang)家(jia)、商(shang)家(jia)產品。成(cheng)盤包裝的電線(xian)應有(you)合格(ge)證，電線(xian)本體(ti)應印有(you)廠(chang)名或(huo)商(shang)標(biao)、電壓、3C標(biao)志等(deng)(deng)。廠(chang)家(jia)假冒偽劣電線(xian)往(wang)往(wang)是“三無”產品，但上面卻(que)也有(you)模棱(leng)兩可(ke)的產地等(deng)(deng)標(biao)識(shi)，如中國(guo)制造(zao)(zao)、中國(guo)某(mou)省或(huo)某(mou)市(shi)制造(zao)(zao)等(deng)(deng)，這實際等(deng)(deng)于未標(biao)產地。

2、布(bu)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)目前使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)導體(ti)材料主要有(you)銅和鋁(lv)。在選(xuan)(xuan)購(gou)時(shi)首先應(ying)根據使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)負載選(xuan)(xuan)擇相應(ying)的(de)(de)(de)規格(ge)，如(ru)照明(ming)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)路使(shi)(shi)用(yong)(yong)(yong)(yong)1.5平(ping)(ping)方(fang)毫(hao)(hao)(hao)米(mi)的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)或2.5平(ping)(ping)方(fang)毫(hao)(hao)(hao)米(mi)的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，如(ru)空調、微波爐、烤箱等使(shi)(shi)用(yong)(yong)(yong)(yong)2.5平(ping)(ping)方(fang)毫(hao)(hao)(hao)米(mi)的(de)(de)(de)銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)或4平(ping)(ping)方(fang)毫(hao)(hao)(hao)米(mi)的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，選(xuan)(xuan)擇合適規格(ge)的(de)(de)(de)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)可避(bi)免(mian)由(you)于(yu)小規格(ge)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)載流(liu)量(liang)不夠引起短路發生(sheng)火災(zai)；其次選(xuan)(xuan)購(gou)時(shi)應(ying)注意(yi)導體(ti)的(de)(de)(de)質量(liang)，合格(ge)的(de)(de)(de)銅芯(xin)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)應(ying)使(shi)(shi)用(yong)(yong)(yong)(yong)紫紅色、有(you)光澤(ze)、手感軟的(de)(de)(de)銅線(xian)(xian)(xian)(xian)(xian)(xian)(xian)，而偽劣的(de)(de)(de)銅芯(xin)線(xian)(xian)(xian)(xian)(xian)(xian)(xian)銅芯(xin)為(wei)紫黑色、偏黃或偏白，雜志(zhi)多(duo)(duo)，機械強度差(cha)，韌(ren)勁不佳，稍用(yong)(yong)(yong)(yong)力(li)即會折斷，而且如(ru)果多(duo)(duo)股銅絲(si)常有(you)斷線(xian)(xian)(xian)(xian)(xian)(xian)(xian)現(xian)象，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命短。

3、布電線(xian)(xian)使用的外皮為聚(ju)氯乙烯(xi)絕緣(yuan)材料。合(he)格的電線(xian)(xian)絕緣(yuan)應該外觀光滑、表面印字清晰。從電線(xian)(xian)頭(tou)觀察(cha)，絕緣(yuan)應均勻，不偏芯。有些偽劣斷線(xian)(xian)絕緣(yuan)層(ceng)(ceng)看(kan)上(shang)去(qu)似乎很厚實，實際上(shang)大多是用再生塑料制成的，時(shi)間一長，絕緣(yuan)層(ceng)(ceng)會老化漏電。

4、質量好的(de)電(dian)線，一般(ban)都在(zai)規定的(de)重量范圍(wei)內(nei)。價(jia)格上(shang)，由于(yu)假冒(mao)偽劣(lie)的(de)制(zhi)作成本低，因此，商販在(zai)銷售時(shi)，常(chang)以物美價(jia)廉為幌(huang)子低價(jia)銷售，讓人上(shang)當。

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