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聚氯乙烯電纜

聚氯乙烯絕(jue)緣電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)電(dian)(dian)(dian)(dian)線產品分為固定布(bu)線用(yong)(yong)無保護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、固定布(bu)線用(yong)(yong)護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、輕型無護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、一般用(yong)(yong)途護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、安裝(zhuang)用(yong)(yong)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)和屏蔽(bi)電(dian)(dian)(dian)(dian)線、特殊用(yong)(yong)途保護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)、聚氯乙烯絕(jue)緣阻燃耐火(huo)電(dian)(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)等產品

歷史

電(dian)(dian)線電(dian)(dian)纜行業(ye)(ye)是(shi)我國經濟(ji)建設(she)的(de)(de)重要配套產業(ye)(ye)，廣(guang)泛應用于國民經濟(ji)各個領域(yu)，占據著中國電(dian)(dian)工行業(ye)(ye)1/4的(de)(de)行業(ye)(ye)，是(shi)機械(xie)工業(ye)(ye)中僅次于汽車行業(ye)(ye)的(de)(de)第二大產業(ye)(ye)。其(qi)中，室內裝修(xiu)使用的(de)(de)電(dian)(dian)線主(zhu)要是(shi)額定電(dian)(dian)壓450/750v及以下聚氯乙烯絕緣電(dian)(dian)纜，又稱電(dian)(dian)線。

電線質量(liang)的考核主(zhu)要(yao)(yao)由專業檢(jian)驗(yan)機構(gou)進行檢(jian)驗(yan)，報告中主(zhu)要(yao)(yao)的技(ji)術(shu)指標有以(yi)下：

1、導體(ti)直(zhi)流電阻。直(zhi)接反映(ying)電線的載流能力，也就是(shi)通常所說能帶多大的負載。該指標與導體(ti)材質、導體(ti)截面積(ji)（電線規(gui)格(ge)）也就是(shi)線徑有關(guan)

2、成品耐壓(ya)試(shi)驗。主要考核(he)電線(xian)的絕緣(yuan)是否有漏(lou)電。該指標與絕緣(yuan)的材料(liao)和制造(zao)工藝有關

3、絕(jue)(jue)緣(yuan)(yuan)（護套）厚度及機械性能等(deng)項目。主要(yao)考核電線使(shi)用(yong)(yong)壽(shou)(shou)命(ming)及使(shi)用(yong)(yong)環境。絕(jue)(jue)緣(yuan)(yuan)厚度過薄或扁芯，容(rong)易在安裝或使(shi)用(yong)(yong)中在薄的位置發生破損(sun)，形成(cheng)漏電。使(shi)用(yong)(yong)劣質(zhi)絕(jue)(jue)緣(yuan)(yuan)材料(liao)的電線使(shi)用(yong)(yong)壽(shou)(shou)命(ming)短。

選購

1、首選正(zheng)規(gui)廠家(jia)、商(shang)家(jia)產(chan)品。成盤包裝(zhuang)的(de)電(dian)線(xian)(xian)應有(you)合格證，電(dian)線(xian)(xian)本體應印(yin)有(you)廠名(ming)或商(shang)標、電(dian)壓、3C標志(zhi)等(deng)。廠家(jia)假(jia)冒偽劣電(dian)線(xian)(xian)往(wang)往(wang)是(shi)“三無”產(chan)品，但上面卻也有(you)模(mo)棱(leng)兩可(ke)的(de)產(chan)地等(deng)標識，如(ru)中國(guo)制(zhi)造、中國(guo)某省或某市制(zhi)造等(deng)，這實際等(deng)于未標產(chan)地。

2、布(bu)電(dian)線(xian)(xian)目前使(shi)(shi)用(yong)(yong)的導(dao)體材(cai)料主(zhu)要有(you)(you)銅(tong)(tong)(tong)和鋁(lv)。在選(xuan)購時首(shou)先(xian)應根(gen)據使(shi)(shi)用(yong)(yong)的負載(zai)選(xuan)擇(ze)相(xiang)應的規格，如(ru)照明線(xian)(xian)路(lu)使(shi)(shi)用(yong)(yong)1.5平(ping)(ping)方毫(hao)米的鋁(lv)線(xian)(xian)或(huo)2.5平(ping)(ping)方毫(hao)米的鋁(lv)線(xian)(xian)，如(ru)空調、微波爐、烤箱等使(shi)(shi)用(yong)(yong)2.5平(ping)(ping)方毫(hao)米的銅(tong)(tong)(tong)線(xian)(xian)或(huo)4平(ping)(ping)方毫(hao)米的鋁(lv)線(xian)(xian)，選(xuan)擇(ze)合適(shi)規格的電(dian)線(xian)(xian)可避免(mian)由于小規格電(dian)線(xian)(xian)載(zai)流量不夠引起短路(lu)發生火災；其次選(xuan)購時應注意導(dao)體的質量，合格的銅(tong)(tong)(tong)芯電(dian)線(xian)(xian)應使(shi)(shi)用(yong)(yong)紫紅色、有(you)(you)光(guang)澤、手感軟的銅(tong)(tong)(tong)線(xian)(xian)，而偽劣的銅(tong)(tong)(tong)芯線(xian)(xian)銅(tong)(tong)(tong)芯為紫黑(hei)色、偏(pian)黃或(huo)偏(pian)白，雜志多，機(ji)械強(qiang)度差(cha)，韌勁(jing)不佳，稍用(yong)(yong)力即會(hui)折(zhe)斷(duan)(duan)，而且(qie)如(ru)果多股銅(tong)(tong)(tong)絲常有(you)(you)斷(duan)(duan)線(xian)(xian)現(xian)象，使(shi)(shi)用(yong)(yong)壽命短。

3、布電線使用(yong)(yong)的(de)外皮為聚氯(lv)乙烯絕(jue)(jue)(jue)緣(yuan)材料。合格的(de)電線絕(jue)(jue)(jue)緣(yuan)應該外觀光(guang)滑、表(biao)面(mian)印字(zi)清晰。從(cong)電線頭觀察，絕(jue)(jue)(jue)緣(yuan)應均勻(yun)，不偏芯。有些偽(wei)劣斷線絕(jue)(jue)(jue)緣(yuan)層(ceng)看上去似乎很厚(hou)實，實際(ji)上大多是(shi)用(yong)(yong)再生塑料制成的(de)，時(shi)間一長，絕(jue)(jue)(jue)緣(yuan)層(ceng)會老化漏電。

4、質量好(hao)的電(dian)線，一般都在規(gui)定的重量范圍(wei)內(nei)。價格上，由于假冒偽劣(lie)的制作成本低，因此(ci)，商販在銷售(shou)時，常以(yi)物(wu)美(mei)價廉為幌子低價銷售(shou)，讓(rang)人上當。

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