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聚氯乙烯電纜

聚氯乙烯絕(jue)緣電(dian)(dian)(dian)(dian)(dian)纜(lan)電(dian)(dian)(dian)(dian)(dian)線產品分為固(gu)定(ding)布線用無(wu)保(bao)護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)、固(gu)定(ding)布線用護(hu)套(tao)(tao)電(dian)(dian)(dian)(dian)(dian)纜(lan)、輕型無(wu)護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)(dian)(dian)纜(lan)、一般(ban)用途(tu)護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)(dian)(dian)纜(lan)、安裝用電(dian)(dian)(dian)(dian)(dian)纜(lan)和屏蔽(bi)電(dian)(dian)(dian)(dian)(dian)線、特殊用途(tu)保(bao)護(hu)套(tao)(tao)軟(ruan)電(dian)(dian)(dian)(dian)(dian)纜(lan)、聚氯乙烯絕(jue)緣阻(zu)燃(ran)耐(nai)火電(dian)(dian)(dian)(dian)(dian)纜(lan)等(deng)產品

歷史

電線電纜(lan)行(xing)業是(shi)我國經濟(ji)建(jian)設的(de)重要(yao)(yao)配套產業，廣(guang)泛(fan)應用于(yu)國民經濟(ji)各個領域(yu)，占據著中(zhong)(zhong)國電工(gong)(gong)行(xing)業1/4的(de)行(xing)業，是(shi)機械工(gong)(gong)業中(zhong)(zhong)僅次于(yu)汽車行(xing)業的(de)第二大(da)產業。其中(zhong)(zhong)，室(shi)內裝修使用的(de)電線主(zhu)要(yao)(yao)是(shi)額定電壓450/750v及以下聚(ju)氯(lv)乙烯絕(jue)緣電纜(lan)，又稱電線。

電線質(zhi)量的(de)考核主(zhu)要(yao)由專業檢驗機(ji)構進(jin)行檢驗，報(bao)告中(zhong)主(zhu)要(yao)的(de)技術指標有以(yi)下：

1、導(dao)(dao)(dao)體(ti)(ti)直流電(dian)(dian)阻。直接反映電(dian)(dian)線(xian)(xian)的(de)載(zai)(zai)流能力，也(ye)就是(shi)通常所說能帶多大的(de)負(fu)載(zai)(zai)。該指標(biao)與導(dao)(dao)(dao)體(ti)(ti)材質、導(dao)(dao)(dao)體(ti)(ti)截面積（電(dian)(dian)線(xian)(xian)規格）也(ye)就是(shi)線(xian)(xian)徑(jing)有關

2、成品耐壓試(shi)驗(yan)。主要(yao)考核電(dian)線的(de)絕緣是(shi)否有(you)漏電(dian)。該指(zhi)標與絕緣的(de)材料(liao)和制造工(gong)藝有(you)關(guan)

3、絕(jue)緣（護(hu)套）厚(hou)度及(ji)機(ji)械性能等項目。主(zhu)要考(kao)核(he)電線(xian)使(shi)用壽(shou)命及(ji)使(shi)用環境。絕(jue)緣厚(hou)度過薄或(huo)扁(bian)芯，容(rong)易在安(an)裝(zhuang)或(huo)使(shi)用中在薄的位置發生破損，形成漏電。使(shi)用劣(lie)質絕(jue)緣材料(liao)的電線(xian)使(shi)用壽(shou)命短(duan)。

選購

1、首選正規廠家(jia)(jia)、商家(jia)(jia)產(chan)品。成盤包裝的電線應有合格證，電線本體應印有廠名或(huo)商標(biao)、電壓(ya)、3C標(biao)志等。廠家(jia)(jia)假冒(mao)偽(wei)劣電線往往是(shi)“三無(wu)”產(chan)品，但上(shang)面卻(que)也有模棱兩可的產(chan)地等標(biao)識，如中國制(zhi)造、中國某(mou)省或(huo)某(mou)市(shi)制(zhi)造等，這實際等于未標(biao)產(chan)地。

2、布電線(xian)(xian)(xian)(xian)目(mu)前使(shi)用(yong)(yong)的(de)(de)(de)導(dao)體(ti)材料主要有銅(tong)(tong)和鋁(lv)。在選(xuan)購時首先應(ying)(ying)根據使(shi)用(yong)(yong)的(de)(de)(de)負載選(xuan)擇(ze)相應(ying)(ying)的(de)(de)(de)規(gui)格(ge)，如照明線(xian)(xian)(xian)(xian)路使(shi)用(yong)(yong)1.5平(ping)方(fang)毫(hao)(hao)米(mi)的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)或2.5平(ping)方(fang)毫(hao)(hao)米(mi)的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)，如空調、微波爐(lu)、烤箱等使(shi)用(yong)(yong)2.5平(ping)方(fang)毫(hao)(hao)米(mi)的(de)(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)或4平(ping)方(fang)毫(hao)(hao)米(mi)的(de)(de)(de)鋁(lv)線(xian)(xian)(xian)(xian)，選(xuan)擇(ze)合適規(gui)格(ge)的(de)(de)(de)電線(xian)(xian)(xian)(xian)可避免由于小規(gui)格(ge)電線(xian)(xian)(xian)(xian)載流量不(bu)夠引起(qi)短路發生火災(zai)；其(qi)次選(xuan)購時應(ying)(ying)注意導(dao)體(ti)的(de)(de)(de)質量，合格(ge)的(de)(de)(de)銅(tong)(tong)芯電線(xian)(xian)(xian)(xian)應(ying)(ying)使(shi)用(yong)(yong)紫(zi)紅色、有光澤(ze)、手(shou)感軟的(de)(de)(de)銅(tong)(tong)線(xian)(xian)(xian)(xian)，而(er)偽劣的(de)(de)(de)銅(tong)(tong)芯線(xian)(xian)(xian)(xian)銅(tong)(tong)芯為紫(zi)黑色、偏黃(huang)或偏白，雜志多(duo)，機械強度差，韌(ren)勁不(bu)佳，稍(shao)用(yong)(yong)力即會折(zhe)斷，而(er)且如果多(duo)股(gu)銅(tong)(tong)絲(si)常有斷線(xian)(xian)(xian)(xian)現象(xiang)，使(shi)用(yong)(yong)壽命(ming)短。

3、布(bu)電(dian)線(xian)(xian)使用的(de)外皮為聚氯乙烯絕(jue)(jue)緣(yuan)材料(liao)。合格的(de)電(dian)線(xian)(xian)絕(jue)(jue)緣(yuan)應該外觀(guan)光滑、表面印(yin)字(zi)清晰。從電(dian)線(xian)(xian)頭(tou)觀(guan)察，絕(jue)(jue)緣(yuan)應均勻，不偏芯(xin)。有些偽劣斷線(xian)(xian)絕(jue)(jue)緣(yuan)層看上(shang)(shang)去似乎很厚實，實際上(shang)(shang)大多是用再生塑料(liao)制成的(de)，時(shi)間(jian)一(yi)長，絕(jue)(jue)緣(yuan)層會(hui)老化漏電(dian)。

4、質(zhi)量好的(de)(de)電線，一般(ban)都在(zai)規定的(de)(de)重量范圍內。價(jia)格上，由于假冒偽劣的(de)(de)制作成本低，因此，商販在(zai)銷售時，常以物美價(jia)廉為幌子低價(jia)銷售，讓人上當。

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