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聚氯乙烯電纜

聚氯乙烯絕緣電(dian)(dian)纜(lan)(lan)(lan)電(dian)(dian)線(xian)(xian)產(chan)品分為固(gu)定布線(xian)(xian)用(yong)(yong)無(wu)保(bao)護套(tao)(tao)電(dian)(dian)纜(lan)(lan)(lan)、固(gu)定布線(xian)(xian)用(yong)(yong)護套(tao)(tao)電(dian)(dian)纜(lan)(lan)(lan)、輕型無(wu)護套(tao)(tao)軟電(dian)(dian)纜(lan)(lan)(lan)、一般用(yong)(yong)途護套(tao)(tao)軟電(dian)(dian)纜(lan)(lan)(lan)、安裝用(yong)(yong)電(dian)(dian)纜(lan)(lan)(lan)和屏(ping)蔽電(dian)(dian)線(xian)(xian)、特殊用(yong)(yong)途保(bao)護套(tao)(tao)軟電(dian)(dian)纜(lan)(lan)(lan)、聚氯乙烯絕緣阻燃(ran)耐火電(dian)(dian)纜(lan)(lan)(lan)等產(chan)品

歷史

電(dian)線電(dian)纜行業(ye)是我國經(jing)濟建設的重要配套產業(ye)，廣(guang)泛應用于國民經(jing)濟各個領域(yu)，占據著中國電(dian)工(gong)行業(ye)1/4的行業(ye)，是機械工(gong)業(ye)中僅次于汽車(che)行業(ye)的第二大產業(ye)。其中，室(shi)內裝修使用的電(dian)線主要是額定電(dian)壓450/750v及(ji)以下聚氯乙烯絕緣電(dian)纜，又(you)稱電(dian)線。

電(dian)線(xian)質量的考核主要(yao)(yao)由專(zhuan)業檢(jian)驗機構進行檢(jian)驗，報告中主要(yao)(yao)的技術指(zhi)標有以下：

1、導(dao)體(ti)直流電阻。直接反(fan)映電線(xian)的(de)載流能力(li)，也(ye)就是通常(chang)所(suo)說能帶多大(da)的(de)負載。該指標與導(dao)體(ti)材質(zhi)、導(dao)體(ti)截面積（電線(xian)規格）也(ye)就是線(xian)徑有(you)關

2、成品耐壓(ya)試驗(yan)。主要考核電線的(de)絕緣是否(fou)有漏電。該指(zhi)標與絕緣的(de)材料(liao)和制造(zao)工(gong)藝有關(guan)

3、絕緣(yuan)(yuan)（護套(tao)）厚度(du)及機械性能等(deng)項目。主要考核電(dian)線(xian)使(shi)(shi)用壽(shou)命(ming)及使(shi)(shi)用環境。絕緣(yuan)(yuan)厚度(du)過薄或(huo)扁芯，容易在(zai)(zai)安裝或(huo)使(shi)(shi)用中在(zai)(zai)薄的位(wei)置發生(sheng)破損，形成(cheng)漏(lou)電(dian)。使(shi)(shi)用劣質絕緣(yuan)(yuan)材料的電(dian)線(xian)使(shi)(shi)用壽(shou)命(ming)短。

選購

1、首(shou)選(xuan)正(zheng)規廠(chang)家(jia)、商家(jia)產品(pin)。成(cheng)盤包裝的電線應(ying)有(you)合格(ge)證，電線本體應(ying)印有(you)廠(chang)名或商標、電壓、3C標志等。廠(chang)家(jia)假冒(mao)偽劣電線往(wang)往(wang)是“三(san)無”產品(pin)，但上面卻也有(you)模棱兩可的產地(di)等標識，如(ru)中國制造、中國某(mou)省或某(mou)市制造等，這實際等于未標產地(di)。

2、布電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)目前(qian)使(shi)(shi)用(yong)(yong)的(de)導體(ti)材料主要有(you)銅(tong)(tong)(tong)和(he)鋁(lv)。在選購時首(shou)先應(ying)根據使(shi)(shi)用(yong)(yong)的(de)負載選擇相應(ying)的(de)規格(ge)，如(ru)(ru)照明線(xian)(xian)(xian)(xian)(xian)路使(shi)(shi)用(yong)(yong)1.5平(ping)(ping)(ping)方毫(hao)米的(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)或(huo)(huo)2.5平(ping)(ping)(ping)方毫(hao)米的(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)，如(ru)(ru)空調、微波爐(lu)、烤箱(xiang)等(deng)使(shi)(shi)用(yong)(yong)2.5平(ping)(ping)(ping)方毫(hao)米的(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)(xian)或(huo)(huo)4平(ping)(ping)(ping)方毫(hao)米的(de)鋁(lv)線(xian)(xian)(xian)(xian)(xian)，選擇合適規格(ge)的(de)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)可避(bi)免由于(yu)小規格(ge)電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)載流量不(bu)夠(gou)引起短路發生火災；其次(ci)選購時應(ying)注(zhu)意(yi)導體(ti)的(de)質量，合格(ge)的(de)銅(tong)(tong)(tong)芯電(dian)(dian)線(xian)(xian)(xian)(xian)(xian)應(ying)使(shi)(shi)用(yong)(yong)紫紅色(se)、有(you)光澤、手感軟的(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)(xian)，而偽(wei)劣(lie)的(de)銅(tong)(tong)(tong)芯線(xian)(xian)(xian)(xian)(xian)銅(tong)(tong)(tong)芯為紫黑色(se)、偏黃或(huo)(huo)偏白，雜志多，機械強度差，韌勁不(bu)佳，稍用(yong)(yong)力(li)即會折(zhe)斷，而且(qie)如(ru)(ru)果多股銅(tong)(tong)(tong)絲常有(you)斷線(xian)(xian)(xian)(xian)(xian)現象，使(shi)(shi)用(yong)(yong)壽命短。

3、布(bu)電(dian)(dian)線使用的外皮(pi)為聚氯乙烯絕緣(yuan)材料。合格的電(dian)(dian)線絕緣(yuan)應該外觀光滑(hua)、表面印字清(qing)晰。從(cong)電(dian)(dian)線頭觀察，絕緣(yuan)應均(jun)勻，不(bu)偏芯。有些偽(wei)劣斷線絕緣(yuan)層看上去似乎很厚實，實際上大多(duo)是用再生塑料制成的，時間(jian)一(yi)長，絕緣(yuan)層會老化漏電(dian)(dian)。

4、質量(liang)好(hao)的電線，一般都在(zai)規定的重量(liang)范(fan)圍內。價格上，由于(yu)假冒偽劣的制作成本低，因此，商販在(zai)銷售時，常以物美價廉為幌子(zi)低價銷售，讓人上當。

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