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聚氯乙烯電纜

聚氯(lv)乙(yi)烯(xi)絕緣電(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)線(xian)(xian)產品分為固(gu)定布線(xian)(xian)用(yong)(yong)無保護套(tao)電(dian)(dian)(dian)(dian)纜(lan)、固(gu)定布線(xian)(xian)用(yong)(yong)護套(tao)電(dian)(dian)(dian)(dian)纜(lan)、輕型無護套(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、一般用(yong)(yong)途護套(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、安裝用(yong)(yong)電(dian)(dian)(dian)(dian)纜(lan)和屏蔽電(dian)(dian)(dian)(dian)線(xian)(xian)、特殊(shu)用(yong)(yong)途保護套(tao)軟(ruan)電(dian)(dian)(dian)(dian)纜(lan)、聚氯(lv)乙(yi)烯(xi)絕緣阻燃耐火電(dian)(dian)(dian)(dian)纜(lan)等產品

歷史

電(dian)(dian)(dian)線電(dian)(dian)(dian)纜行(xing)業(ye)(ye)是我國經(jing)濟建(jian)設的(de)重要配套產(chan)業(ye)(ye)，廣泛應用于國民經(jing)濟各個(ge)領域，占據著中(zhong)國電(dian)(dian)(dian)工行(xing)業(ye)(ye)1/4的(de)行(xing)業(ye)(ye)，是機械工業(ye)(ye)中(zhong)僅次(ci)于汽車行(xing)業(ye)(ye)的(de)第(di)二大產(chan)業(ye)(ye)。其(qi)中(zhong)，室(shi)內裝修使用的(de)電(dian)(dian)(dian)線主(zhu)要是額定電(dian)(dian)(dian)壓450/750v及以下(xia)聚氯乙烯絕(jue)緣電(dian)(dian)(dian)纜，又(you)稱電(dian)(dian)(dian)線。

電線質量的考(kao)核(he)主要由(you)專業檢驗機構進(jin)行檢驗，報(bao)告(gao)中(zhong)主要的技術指標有以下：

1、導(dao)(dao)體(ti)直流(liu)電(dian)阻(zu)。直接反映電(dian)線的(de)載流(liu)能力，也(ye)就(jiu)是通常(chang)所說(shuo)能帶多大的(de)負載。該指標與(yu)導(dao)(dao)體(ti)材質、導(dao)(dao)體(ti)截面積（電(dian)線規格）也(ye)就(jiu)是線徑(jing)有關

2、成(cheng)品(pin)耐壓試(shi)驗。主(zhu)要(yao)考核(he)電線的絕緣是(shi)否有漏(lou)電。該指標與絕緣的材料(liao)和(he)制造工藝有關

3、絕緣(yuan)（護套）厚度及機械性能等項目。主(zhu)要考(kao)核(he)電(dian)線使用壽命(ming)及使用環(huan)境。絕緣(yuan)厚度過(guo)薄或扁(bian)芯(xin)，容(rong)易在(zai)安裝或使用中(zhong)在(zai)薄的位置發生(sheng)破(po)損，形(xing)成漏電(dian)。使用劣質絕緣(yuan)材料的電(dian)線使用壽命(ming)短(duan)。

選購

1、首選正(zheng)規廠(chang)家(jia)、商(shang)(shang)家(jia)產(chan)品。成盤包裝的電(dian)線(xian)應有合格證，電(dian)線(xian)本(ben)體應印有廠(chang)名或商(shang)(shang)標(biao)、電(dian)壓(ya)、3C標(biao)志等(deng)。廠(chang)家(jia)假冒偽劣電(dian)線(xian)往(wang)往(wang)是“三無”產(chan)品，但上面卻也有模棱兩(liang)可的產(chan)地等(deng)標(biao)識，如(ru)中國(guo)(guo)制(zhi)造、中國(guo)(guo)某省或某市制(zhi)造等(deng)，這(zhe)實際等(deng)于未標(biao)產(chan)地。

2、布電(dian)(dian)線(xian)(xian)(xian)(xian)目(mu)前使(shi)(shi)用(yong)的(de)(de)導體材(cai)料主要有銅(tong)(tong)(tong)和鋁(lv)。在選購時(shi)首先(xian)應(ying)根(gen)據使(shi)(shi)用(yong)的(de)(de)負(fu)載(zai)選擇(ze)相應(ying)的(de)(de)規(gui)格(ge)，如照明線(xian)(xian)(xian)(xian)路使(shi)(shi)用(yong)1.5平(ping)方毫(hao)米的(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)或2.5平(ping)方毫(hao)米的(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)，如空調、微波(bo)爐、烤箱(xiang)等(deng)使(shi)(shi)用(yong)2.5平(ping)方毫(hao)米的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)或4平(ping)方毫(hao)米的(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)，選擇(ze)合適規(gui)格(ge)的(de)(de)電(dian)(dian)線(xian)(xian)(xian)(xian)可避免(mian)由于小規(gui)格(ge)電(dian)(dian)線(xian)(xian)(xian)(xian)載(zai)流(liu)量不夠引(yin)起短路發(fa)生火災；其次選購時(shi)應(ying)注意導體的(de)(de)質(zhi)量，合格(ge)的(de)(de)銅(tong)(tong)(tong)芯電(dian)(dian)線(xian)(xian)(xian)(xian)應(ying)使(shi)(shi)用(yong)紫紅(hong)色、有光澤(ze)、手感(gan)軟的(de)(de)銅(tong)(tong)(tong)線(xian)(xian)(xian)(xian)，而(er)偽劣(lie)的(de)(de)銅(tong)(tong)(tong)芯線(xian)(xian)(xian)(xian)銅(tong)(tong)(tong)芯為紫黑(hei)色、偏黃或偏白，雜志多，機械強度差(cha)，韌勁不佳(jia)，稍用(yong)力即會折(zhe)斷，而(er)且如果多股銅(tong)(tong)(tong)絲常(chang)有斷線(xian)(xian)(xian)(xian)現(xian)象，使(shi)(shi)用(yong)壽命短。

3、布(bu)電線(xian)使(shi)用(yong)的外(wai)皮為聚(ju)氯乙(yi)烯絕緣(yuan)材(cai)料(liao)。合格的電線(xian)絕緣(yuan)應該外(wai)觀光滑、表面(mian)印(yin)字(zi)清(qing)晰。從電線(xian)頭觀察，絕緣(yuan)應均勻，不偏芯。有些偽劣斷線(xian)絕緣(yuan)層(ceng)看上去似(si)乎很厚實(shi)，實(shi)際上大多是(shi)用(yong)再(zai)生(sheng)塑(su)料(liao)制成的，時間一長，絕緣(yuan)層(ceng)會(hui)老化(hua)漏電。

4、質量(liang)好的(de)電(dian)線，一般(ban)都在規(gui)定的(de)重量(liang)范圍內。價(jia)格上(shang)，由于假冒(mao)偽(wei)劣(lie)的(de)制作成本低，因此，商(shang)販在銷售時，常(chang)以物美價(jia)廉(lian)為幌(huang)子(zi)低價(jia)銷售，讓人(ren)上(shang)當。

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