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聚氯乙烯電纜

聚(ju)氯乙(yi)烯絕(jue)緣(yuan)電(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)線(xian)產(chan)品分為固(gu)定布線(xian)用無保(bao)(bao)護(hu)(hu)套電(dian)(dian)(dian)(dian)纜(lan)、固(gu)定布線(xian)用護(hu)(hu)套電(dian)(dian)(dian)(dian)纜(lan)、輕型無護(hu)(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、一般用途(tu)護(hu)(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、安裝用電(dian)(dian)(dian)(dian)纜(lan)和屏蔽電(dian)(dian)(dian)(dian)線(xian)、特殊用途(tu)保(bao)(bao)護(hu)(hu)套軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、聚(ju)氯乙(yi)烯絕(jue)緣(yuan)阻燃(ran)耐火電(dian)(dian)(dian)(dian)纜(lan)等(deng)產(chan)品

歷史

電(dian)(dian)線電(dian)(dian)纜行(xing)(xing)業(ye)(ye)是我國(guo)經(jing)(jing)濟建設的(de)重(zhong)要配套產(chan)業(ye)(ye)，廣泛應用于(yu)國(guo)民經(jing)(jing)濟各個領域，占據著中國(guo)電(dian)(dian)工行(xing)(xing)業(ye)(ye)1/4的(de)行(xing)(xing)業(ye)(ye)，是機械(xie)工業(ye)(ye)中僅次于(yu)汽車行(xing)(xing)業(ye)(ye)的(de)第二大(da)產(chan)業(ye)(ye)。其中，室內裝(zhuang)修使用的(de)電(dian)(dian)線主要是額定電(dian)(dian)壓450/750v及(ji)以下聚(ju)氯乙烯絕緣(yuan)電(dian)(dian)纜，又稱電(dian)(dian)線。

電線質量(liang)的考核主要由專業(ye)檢驗機構進行檢驗，報告中主要的技術指標有(you)以(yi)下：

1、導(dao)(dao)體直(zhi)流(liu)電(dian)(dian)阻。直(zhi)接(jie)反映(ying)電(dian)(dian)線的載(zai)流(liu)能力，也就是通(tong)常(chang)所說能帶多(duo)大的負(fu)載(zai)。該指(zhi)標與導(dao)(dao)體材質、導(dao)(dao)體截面積（電(dian)(dian)線規(gui)格）也就是線徑(jing)有關

2、成品耐壓試(shi)驗。主要考核電線(xian)的(de)絕(jue)緣是(shi)否有漏電。該指標與絕(jue)緣的(de)材料和(he)制造工藝有關

3、絕緣（護套）厚(hou)度(du)及(ji)(ji)機械性(xing)能等項目(mu)。主要考(kao)核電(dian)線使(shi)用(yong)壽(shou)命及(ji)(ji)使(shi)用(yong)環境。絕緣厚(hou)度(du)過(guo)薄(bo)(bo)或扁芯(xin)，容(rong)易在(zai)安裝(zhuang)或使(shi)用(yong)中在(zai)薄(bo)(bo)的(de)位置發(fa)生破損，形成漏電(dian)。使(shi)用(yong)劣質絕緣材料的(de)電(dian)線使(shi)用(yong)壽(shou)命短。

選購

1、首選正規廠(chang)(chang)(chang)家、商家產品(pin)。成(cheng)盤包裝的(de)電線(xian)應(ying)有合格證，電線(xian)本體應(ying)印有廠(chang)(chang)(chang)名或商標(biao)、電壓(ya)、3C標(biao)志等。廠(chang)(chang)(chang)家假冒(mao)偽劣電線(xian)往往是“三(san)無”產品(pin)，但上面卻也有模(mo)棱兩可的(de)產地等標(biao)識，如中(zhong)國制(zhi)造、中(zhong)國某省(sheng)或某市制(zhi)造等，這實際(ji)等于未標(biao)產地。

2、布電(dian)線(xian)(xian)(xian)(xian)(xian)目(mu)前(qian)使(shi)(shi)用(yong)的(de)(de)導(dao)體材(cai)料(liao)主要有銅(tong)(tong)和(he)鋁。在(zai)選(xuan)購時首先應根據(ju)使(shi)(shi)用(yong)的(de)(de)負載選(xuan)擇(ze)相應的(de)(de)規(gui)格(ge)(ge)，如照明線(xian)(xian)(xian)(xian)(xian)路使(shi)(shi)用(yong)1.5平(ping)方毫(hao)(hao)米的(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)或2.5平(ping)方毫(hao)(hao)米的(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)，如空調、微波爐(lu)、烤箱等使(shi)(shi)用(yong)2.5平(ping)方毫(hao)(hao)米的(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)(xian)或4平(ping)方毫(hao)(hao)米的(de)(de)鋁線(xian)(xian)(xian)(xian)(xian)，選(xuan)擇(ze)合(he)(he)適規(gui)格(ge)(ge)的(de)(de)電(dian)線(xian)(xian)(xian)(xian)(xian)可(ke)避免由(you)于小規(gui)格(ge)(ge)電(dian)線(xian)(xian)(xian)(xian)(xian)載流(liu)量(liang)(liang)不(bu)(bu)夠引起短路發生火災；其次(ci)選(xuan)購時應注意導(dao)體的(de)(de)質量(liang)(liang)，合(he)(he)格(ge)(ge)的(de)(de)銅(tong)(tong)芯(xin)電(dian)線(xian)(xian)(xian)(xian)(xian)應使(shi)(shi)用(yong)紫紅(hong)色(se)、有光澤、手感軟的(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)(xian)，而偽劣(lie)的(de)(de)銅(tong)(tong)芯(xin)線(xian)(xian)(xian)(xian)(xian)銅(tong)(tong)芯(xin)為紫黑(hei)色(se)、偏(pian)(pian)黃或偏(pian)(pian)白(bai)，雜志多，機械強度差，韌勁不(bu)(bu)佳，稍用(yong)力即會折斷(duan)，而且如果多股(gu)銅(tong)(tong)絲常有斷(duan)線(xian)(xian)(xian)(xian)(xian)現(xian)象，使(shi)(shi)用(yong)壽(shou)命短。

3、布電(dian)線(xian)(xian)使用(yong)的外(wai)皮為聚氯(lv)乙烯絕(jue)(jue)緣(yuan)(yuan)材料。合格(ge)的電(dian)線(xian)(xian)絕(jue)(jue)緣(yuan)(yuan)應(ying)該外(wai)觀光滑、表(biao)面印字清晰。從電(dian)線(xian)(xian)頭觀察，絕(jue)(jue)緣(yuan)(yuan)應(ying)均勻，不偏芯。有些偽劣斷(duan)線(xian)(xian)絕(jue)(jue)緣(yuan)(yuan)層(ceng)看上(shang)去似(si)乎(hu)很厚(hou)實(shi)，實(shi)際上(shang)大(da)多(duo)是(shi)用(yong)再(zai)生塑料制(zhi)成的，時(shi)間一長，絕(jue)(jue)緣(yuan)(yuan)層(ceng)會(hui)老化漏電(dian)。

4、質量(liang)好(hao)的電線，一(yi)般都在(zai)規定(ding)的重量(liang)范圍(wei)內。價(jia)格(ge)上，由于假冒(mao)偽(wei)劣(lie)的制作成本低，因此(ci)，商販在(zai)銷售時，常以物美價(jia)廉為幌(huang)子(zi)低價(jia)銷售，讓人(ren)上當。

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