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聚氯乙烯電纜

聚氯(lv)乙烯絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)產(chan)品(pin)分為固定布線(xian)用(yong)無(wu)保(bao)護(hu)(hu)套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、固定布線(xian)用(yong)護(hu)(hu)套(tao)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、輕型無(wu)護(hu)(hu)套(tao)軟電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、一般(ban)用(yong)途護(hu)(hu)套(tao)軟電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、安裝用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)和屏蔽(bi)電(dian)(dian)(dian)(dian)(dian)(dian)線(xian)、特殊用(yong)途保(bao)護(hu)(hu)套(tao)軟電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)、聚氯(lv)乙烯絕(jue)緣(yuan)阻燃耐火(huo)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)等產(chan)品(pin)

歷史

電線(xian)電纜行(xing)業(ye)(ye)是(shi)我國(guo)經濟(ji)建設的(de)重要配套產業(ye)(ye)，廣(guang)泛(fan)應用(yong)于國(guo)民經濟(ji)各個領域，占(zhan)據著(zhu)中(zhong)國(guo)電工(gong)行(xing)業(ye)(ye)1/4的(de)行(xing)業(ye)(ye)，是(shi)機械工(gong)業(ye)(ye)中(zhong)僅次于汽車(che)行(xing)業(ye)(ye)的(de)第二大產業(ye)(ye)。其中(zhong)，室內裝(zhuang)修使用(yong)的(de)電線(xian)主要是(shi)額定電壓(ya)450/750v及以(yi)下(xia)聚氯乙烯絕緣電纜，又稱電線(xian)。

電(dian)線質(zhi)量的考(kao)核主要(yao)由(you)專業檢(jian)驗機構進行檢(jian)驗，報告中(zhong)主要(yao)的技術指標有(you)以(yi)下：

1、導(dao)體(ti)直(zhi)流電阻。直(zhi)接反映電線的載(zai)流能(neng)力，也(ye)就是(shi)通(tong)常(chang)所說能(neng)帶多大的負載(zai)。該指標與(yu)導(dao)體(ti)材質(zhi)、導(dao)體(ti)截面積（電線規格）也(ye)就是(shi)線徑有關

2、成品耐壓試驗。主要(yao)考(kao)核電線(xian)的絕緣是否有漏電。該指(zhi)標與絕緣的材料和制造工藝有關

3、絕緣(yuan)（護套）厚(hou)度(du)及(ji)機械(xie)性能等項目。主(zhu)要考核電(dian)線使(shi)(shi)用(yong)壽(shou)命(ming)及(ji)使(shi)(shi)用(yong)環(huan)境(jing)。絕緣(yuan)厚(hou)度(du)過薄或(huo)扁芯，容易在(zai)(zai)安(an)裝或(huo)使(shi)(shi)用(yong)中在(zai)(zai)薄的位(wei)置(zhi)發生(sheng)破損，形成漏電(dian)。使(shi)(shi)用(yong)劣(lie)質絕緣(yuan)材料的電(dian)線使(shi)(shi)用(yong)壽(shou)命(ming)短。

選購

1、首選正規廠(chang)家(jia)(jia)、商家(jia)(jia)產品。成盤包裝的電(dian)線(xian)應有合(he)格(ge)證(zheng)，電(dian)線(xian)本體應印(yin)有廠(chang)名(ming)或(huo)商標、電(dian)壓、3C標志等(deng)(deng)。廠(chang)家(jia)(jia)假冒偽劣電(dian)線(xian)往(wang)(wang)往(wang)(wang)是“三無(wu)”產品，但上面卻也有模棱(leng)兩可的產地等(deng)(deng)標識，如中(zhong)國(guo)制(zhi)(zhi)造、中(zhong)國(guo)某省或(huo)某市制(zhi)(zhi)造等(deng)(deng)，這實際等(deng)(deng)于未標產地。

2、布(bu)電(dian)(dian)線(xian)(xian)目前使(shi)(shi)用(yong)(yong)(yong)的(de)導體材料主要有銅(tong)(tong)(tong)和鋁。在(zai)選購時(shi)首先應根據使(shi)(shi)用(yong)(yong)(yong)的(de)負載選擇相應的(de)規格(ge)，如照明線(xian)(xian)路(lu)使(shi)(shi)用(yong)(yong)(yong)1.5平(ping)方毫米的(de)鋁線(xian)(xian)或(huo)2.5平(ping)方毫米的(de)鋁線(xian)(xian)，如空(kong)調、微波爐(lu)、烤箱(xiang)等使(shi)(shi)用(yong)(yong)(yong)2.5平(ping)方毫米的(de)銅(tong)(tong)(tong)線(xian)(xian)或(huo)4平(ping)方毫米的(de)鋁線(xian)(xian)，選擇合適規格(ge)的(de)電(dian)(dian)線(xian)(xian)可(ke)避免由(you)于小規格(ge)電(dian)(dian)線(xian)(xian)載流量(liang)(liang)不夠引(yin)起短(duan)路(lu)發生火災(zai)；其次(ci)選購時(shi)應注(zhu)意導體的(de)質量(liang)(liang)，合格(ge)的(de)銅(tong)(tong)(tong)芯電(dian)(dian)線(xian)(xian)應使(shi)(shi)用(yong)(yong)(yong)紫(zi)紅色、有光澤、手感軟的(de)銅(tong)(tong)(tong)線(xian)(xian)，而(er)偽劣的(de)銅(tong)(tong)(tong)芯線(xian)(xian)銅(tong)(tong)(tong)芯為紫(zi)黑(hei)色、偏黃或(huo)偏白，雜(za)志(zhi)多(duo)，機(ji)械強度差，韌勁(jing)不佳，稍用(yong)(yong)(yong)力即會折斷，而(er)且如果多(duo)股銅(tong)(tong)(tong)絲(si)常有斷線(xian)(xian)現象(xiang)，使(shi)(shi)用(yong)(yong)(yong)壽命短(duan)。

3、布電(dian)線(xian)(xian)使用(yong)的(de)外皮為(wei)聚氯乙烯絕(jue)緣(yuan)材料。合格的(de)電(dian)線(xian)(xian)絕(jue)緣(yuan)應該外觀光(guang)滑(hua)、表面印字(zi)清晰。從電(dian)線(xian)(xian)頭(tou)觀察，絕(jue)緣(yuan)應均勻(yun)，不偏(pian)芯(xin)。有些偽劣斷線(xian)(xian)絕(jue)緣(yuan)層(ceng)看上去似乎很厚實(shi)，實(shi)際上大多是用(yong)再生(sheng)塑料制成的(de)，時間一長，絕(jue)緣(yuan)層(ceng)會老(lao)化漏電(dian)。

4、質(zhi)量(liang)好的(de)電線(xian)，一般都在規定的(de)重量(liang)范圍內(nei)。價格上(shang)(shang)，由(you)于假冒偽劣(lie)的(de)制作(zuo)成本(ben)低，因(yin)此，商販在銷(xiao)售時，常以物美價廉為幌子(zi)低價銷(xiao)售，讓(rang)人上(shang)(shang)當。

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