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聚氯乙烯電纜

聚(ju)氯(lv)乙(yi)烯絕(jue)緣電(dian)(dian)(dian)纜(lan)(lan)電(dian)(dian)(dian)線(xian)(xian)產品分為固(gu)定布線(xian)(xian)用(yong)無(wu)保護(hu)套(tao)電(dian)(dian)(dian)纜(lan)(lan)、固(gu)定布線(xian)(xian)用(yong)護(hu)套(tao)電(dian)(dian)(dian)纜(lan)(lan)、輕型(xing)無(wu)護(hu)套(tao)軟(ruan)(ruan)電(dian)(dian)(dian)纜(lan)(lan)、一般(ban)用(yong)途(tu)護(hu)套(tao)軟(ruan)(ruan)電(dian)(dian)(dian)纜(lan)(lan)、安裝用(yong)電(dian)(dian)(dian)纜(lan)(lan)和(he)屏(ping)蔽電(dian)(dian)(dian)線(xian)(xian)、特殊用(yong)途(tu)保護(hu)套(tao)軟(ruan)(ruan)電(dian)(dian)(dian)纜(lan)(lan)、聚(ju)氯(lv)乙(yi)烯絕(jue)緣阻燃耐(nai)火(huo)電(dian)(dian)(dian)纜(lan)(lan)等(deng)產品

歷史

電(dian)(dian)(dian)線(xian)(xian)電(dian)(dian)(dian)纜(lan)行(xing)業(ye)是我國經濟建設的(de)(de)重要配(pei)套產業(ye)，廣泛應(ying)用于(yu)國民經濟各個領域，占據著中國電(dian)(dian)(dian)工行(xing)業(ye)1/4的(de)(de)行(xing)業(ye)，是機械工業(ye)中僅次于(yu)汽車(che)行(xing)業(ye)的(de)(de)第(di)二大(da)產業(ye)。其中，室內裝修(xiu)使(shi)用的(de)(de)電(dian)(dian)(dian)線(xian)(xian)主(zhu)要是額(e)定電(dian)(dian)(dian)壓450/750v及以下聚氯乙烯絕緣電(dian)(dian)(dian)纜(lan)，又稱電(dian)(dian)(dian)線(xian)(xian)。

電線質量的考核主要由(you)專業(ye)檢驗機構進行檢驗，報告中主要的技術指標有以下：

1、導體(ti)直(zhi)流電(dian)阻(zu)。直(zhi)接反映(ying)電(dian)線的載流能力，也就(jiu)(jiu)是通常(chang)所說能帶多(duo)大(da)的負(fu)載。該(gai)指(zhi)標與(yu)導體(ti)材質、導體(ti)截面積（電(dian)線規格(ge)）也就(jiu)(jiu)是線徑有關

2、成品耐壓(ya)試驗。主(zhu)要考核電線的(de)絕(jue)緣是否有(you)漏電。該指標與絕(jue)緣的(de)材料和制(zhi)造工藝有(you)關(guan)

3、絕緣（護套）厚度(du)及機械性能等項目。主要(yao)考核電(dian)線使(shi)(shi)用(yong)(yong)壽命及使(shi)(shi)用(yong)(yong)環境。絕緣厚度(du)過薄或扁芯(xin)，容易在(zai)安裝或使(shi)(shi)用(yong)(yong)中在(zai)薄的位置發(fa)生破損(sun)，形成漏電(dian)。使(shi)(shi)用(yong)(yong)劣質絕緣材料的電(dian)線使(shi)(shi)用(yong)(yong)壽命短。

選購

1、首選正規廠家、商(shang)家產品(pin)。成(cheng)盤(pan)包裝的電線(xian)(xian)應有合格證，電線(xian)(xian)本體應印有廠名或商(shang)標(biao)(biao)、電壓、3C標(biao)(biao)志(zhi)等(deng)。廠家假(jia)冒偽(wei)劣(lie)電線(xian)(xian)往(wang)往(wang)是“三(san)無”產品(pin)，但上(shang)面(mian)卻也有模棱兩可的產地等(deng)標(biao)(biao)識(shi)，如中國制(zhi)造(zao)、中國某(mou)省或某(mou)市制(zhi)造(zao)等(deng)，這實際等(deng)于未標(biao)(biao)產地。

2、布電(dian)(dian)線(xian)(xian)目(mu)前(qian)使(shi)用(yong)的(de)導(dao)體(ti)材(cai)料主要有(you)(you)(you)銅(tong)(tong)和鋁。在選購時首先應(ying)根據使(shi)用(yong)的(de)負載選擇(ze)相應(ying)的(de)規(gui)(gui)格，如照明線(xian)(xian)路使(shi)用(yong)1.5平(ping)(ping)方(fang)(fang)(fang)毫米(mi)(mi)的(de)鋁線(xian)(xian)或(huo)(huo)2.5平(ping)(ping)方(fang)(fang)(fang)毫米(mi)(mi)的(de)鋁線(xian)(xian)，如空(kong)調、微波(bo)爐、烤(kao)箱等使(shi)用(yong)2.5平(ping)(ping)方(fang)(fang)(fang)毫米(mi)(mi)的(de)銅(tong)(tong)線(xian)(xian)或(huo)(huo)4平(ping)(ping)方(fang)(fang)(fang)毫米(mi)(mi)的(de)鋁線(xian)(xian)，選擇(ze)合適規(gui)(gui)格的(de)電(dian)(dian)線(xian)(xian)可避免由于小規(gui)(gui)格電(dian)(dian)線(xian)(xian)載流量(liang)不夠引起短(duan)(duan)路發生火(huo)災；其次(ci)選購時應(ying)注意導(dao)體(ti)的(de)質量(liang)，合格的(de)銅(tong)(tong)芯電(dian)(dian)線(xian)(xian)應(ying)使(shi)用(yong)紫紅(hong)色、有(you)(you)(you)光(guang)澤、手(shou)感軟(ruan)的(de)銅(tong)(tong)線(xian)(xian)，而偽劣的(de)銅(tong)(tong)芯線(xian)(xian)銅(tong)(tong)芯為紫黑色、偏黃或(huo)(huo)偏白，雜志多(duo)，機械強(qiang)度差(cha)，韌勁不佳(jia)，稍用(yong)力即會折斷，而且如果(guo)多(duo)股銅(tong)(tong)絲(si)常有(you)(you)(you)斷線(xian)(xian)現象，使(shi)用(yong)壽(shou)命短(duan)(duan)。

3、布電線使(shi)用(yong)的外皮為聚氯(lv)乙烯絕緣(yuan)材料(liao)。合格(ge)的電線絕緣(yuan)應該外觀光滑、表面印字清晰。從電線頭觀察，絕緣(yuan)應均(jun)勻，不偏芯。有些(xie)偽劣斷(duan)線絕緣(yuan)層看上去似乎很厚實，實際上大多(duo)是用(yong)再生塑(su)料(liao)制成的，時(shi)間一(yi)長，絕緣(yuan)層會老(lao)化漏電。

4、質量好的電線，一般都在規定(ding)的重量范圍內。價格(ge)上，由于假冒偽劣的制作成(cheng)本低(di)，因此，商(shang)販在銷售(shou)時(shi)，常以物(wu)美價廉為幌(huang)子低(di)價銷售(shou)，讓(rang)人上當。

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