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聚氯乙烯電纜

聚氯(lv)乙(yi)烯(xi)絕緣電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)電(dian)(dian)(dian)線產品分為固定布線用(yong)無保護套(tao)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、固定布線用(yong)護套(tao)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、輕型(xing)無護套(tao)軟電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、一般用(yong)途護套(tao)軟電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、安裝用(yong)電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)和屏蔽電(dian)(dian)(dian)線、特殊用(yong)途保護套(tao)軟電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)、聚氯(lv)乙(yi)烯(xi)絕緣阻(zu)燃耐火電(dian)(dian)(dian)纜(lan)(lan)(lan)(lan)(lan)等(deng)產品

歷史

電(dian)(dian)線(xian)電(dian)(dian)纜行(xing)業(ye)(ye)是(shi)(shi)我國經濟建(jian)設的重要配(pei)套產業(ye)(ye)，廣泛應用于(yu)(yu)國民經濟各個領域，占(zhan)據著中(zhong)國電(dian)(dian)工行(xing)業(ye)(ye)1/4的行(xing)業(ye)(ye)，是(shi)(shi)機械工業(ye)(ye)中(zhong)僅次于(yu)(yu)汽車行(xing)業(ye)(ye)的第二大產業(ye)(ye)。其中(zhong)，室內(nei)裝(zhuang)修使用的電(dian)(dian)線(xian)主要是(shi)(shi)額定電(dian)(dian)壓450/750v及以(yi)下聚氯乙烯(xi)絕緣(yuan)電(dian)(dian)纜，又稱(cheng)電(dian)(dian)線(xian)。

電線質(zhi)量的考(kao)核主要(yao)由專業檢驗機構進行檢驗，報告中主要(yao)的技(ji)術指標有以下：

1、導體(ti)直流(liu)電阻。直接反映電線的載流(liu)能力(li)，也就(jiu)是通常所說能帶(dai)多大的負載。該指標與(yu)導體(ti)材質、導體(ti)截面積（電線規格）也就(jiu)是線徑有(you)關

2、成品耐壓試驗。主要考(kao)核電線的絕緣(yuan)是否有漏電。該指標(biao)與(yu)絕緣(yuan)的材料和制造工藝有關(guan)

3、絕(jue)緣(yuan)（護(hu)套）厚度及機械性(xing)能等項(xiang)目。主要考核(he)電(dian)線使(shi)用(yong)壽(shou)命(ming)及使(shi)用(yong)環境(jing)。絕(jue)緣(yuan)厚度過薄(bo)或(huo)扁(bian)芯，容易在(zai)安裝或(huo)使(shi)用(yong)中在(zai)薄(bo)的位置發(fa)生破(po)損，形(xing)成(cheng)漏(lou)電(dian)。使(shi)用(yong)劣質絕(jue)緣(yuan)材料的電(dian)線使(shi)用(yong)壽(shou)命(ming)短(duan)。

選購

1、首(shou)選(xuan)正規廠家(jia)(jia)、商(shang)家(jia)(jia)產品(pin)。成盤包裝(zhuang)的(de)電(dian)線應有(you)(you)合格證，電(dian)線本體應印(yin)有(you)(you)廠名或(huo)商(shang)標、電(dian)壓、3C標志等。廠家(jia)(jia)假冒偽劣(lie)電(dian)線往(wang)往(wang)是(shi)“三無”產品(pin)，但上面卻(que)也有(you)(you)模棱兩可的(de)產地等標識，如中(zhong)國制造、中(zhong)國某省(sheng)或(huo)某市制造等，這(zhe)實際等于(yu)未標產地。

2、布電(dian)線(xian)(xian)目前(qian)使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)導(dao)體(ti)(ti)材料主要有銅(tong)(tong)(tong)和(he)鋁。在選(xuan)購時(shi)首(shou)先應(ying)根據(ju)使(shi)(shi)用(yong)(yong)(yong)(yong)的(de)(de)(de)負載選(xuan)擇相應(ying)的(de)(de)(de)規格，如照明線(xian)(xian)路使(shi)(shi)用(yong)(yong)(yong)(yong)1.5平方(fang)(fang)毫米的(de)(de)(de)鋁線(xian)(xian)或(huo)2.5平方(fang)(fang)毫米的(de)(de)(de)鋁線(xian)(xian)，如空調、微(wei)波爐、烤(kao)箱等使(shi)(shi)用(yong)(yong)(yong)(yong)2.5平方(fang)(fang)毫米的(de)(de)(de)銅(tong)(tong)(tong)線(xian)(xian)或(huo)4平方(fang)(fang)毫米的(de)(de)(de)鋁線(xian)(xian)，選(xuan)擇合適規格的(de)(de)(de)電(dian)線(xian)(xian)可避免(mian)由于(yu)小規格電(dian)線(xian)(xian)載流(liu)量不(bu)夠引(yin)起短路發生火災；其次(ci)選(xuan)購時(shi)應(ying)注意導(dao)體(ti)(ti)的(de)(de)(de)質(zhi)量，合格的(de)(de)(de)銅(tong)(tong)(tong)芯電(dian)線(xian)(xian)應(ying)使(shi)(shi)用(yong)(yong)(yong)(yong)紫(zi)紅色(se)、有光澤(ze)、手感軟(ruan)的(de)(de)(de)銅(tong)(tong)(tong)線(xian)(xian)，而偽劣的(de)(de)(de)銅(tong)(tong)(tong)芯線(xian)(xian)銅(tong)(tong)(tong)芯為紫(zi)黑色(se)、偏黃或(huo)偏白，雜志多，機(ji)械強度(du)差，韌勁不(bu)佳，稍用(yong)(yong)(yong)(yong)力(li)即會(hui)折(zhe)斷，而且如果多股銅(tong)(tong)(tong)絲常有斷線(xian)(xian)現象，使(shi)(shi)用(yong)(yong)(yong)(yong)壽命短。

3、布電線使用的(de)外(wai)皮為聚氯乙烯絕(jue)緣(yuan)(yuan)(yuan)材料。合格的(de)電線絕(jue)緣(yuan)(yuan)(yuan)應(ying)該外(wai)觀(guan)光滑、表面印字清晰。從(cong)電線頭(tou)觀(guan)察，絕(jue)緣(yuan)(yuan)(yuan)應(ying)均(jun)勻(yun)，不偏芯。有些偽劣斷線絕(jue)緣(yuan)(yuan)(yuan)層看上去似(si)乎很厚實，實際上大多是(shi)用再生塑料制成的(de)，時間(jian)一長，絕(jue)緣(yuan)(yuan)(yuan)層會老(lao)化漏(lou)電。

4、質量(liang)好的(de)電(dian)線，一般都在(zai)規(gui)定的(de)重量(liang)范圍(wei)內。價(jia)格(ge)上，由于(yu)假冒偽劣的(de)制(zhi)作成本低，因(yin)此(ci)，商販在(zai)銷售時，常(chang)以(yi)物美價(jia)廉(lian)為幌子低價(jia)銷售，讓人上當。

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