普(pu)(pu)通(tong)全(quan)(quan)銅(tong)(tong)網(wang)線(xian)(xian)(xian)的(de)含銅(tong)(tong)量并不是(shi)(shi)很(hen)高。實(shi)際上普(pu)(pu)通(tong)全(quan)(quan)銅(tong)(tong)網(wang)線(xian)(xian)(xian)導體主要材質是(shi)(shi)青(qing)銅(tong)(tong)。在(zai)(zai)青(qing)銅(tong)(tong)的(de)外面鍍一層(ceng)(ceng)無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)。所以(yi)也被叫銅(tong)(tong)包銅(tong)(tong)網(wang)線(xian)(xian)(xian)。普(pu)(pu)通(tong)全(quan)(quan)銅(tong)(tong)網(wang)線(xian)(xian)(xian)在(zai)(zai)阻值上要比(bi)無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)高很(hen)多。大(da)概在(zai)(zai)110歐姆左(zuo)右。無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)網(wang)線(xian)(xian)(xian)的(de)精度比(bi)較(jiao)(jiao)好，當(dang)數據(ju)在(zai)(zai)無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)進(jin)行(xing)傳輸時，信號的(de)損耗(hao)就會(hui)比(bi)較(jiao)(jiao)小。在(zai)(zai)平常中，我們其(qi)實(shi)很(hen)容(rong)易分(fen)辨出全(quan)(quan)銅(tong)(tong)網(wang)線(xian)(xian)(xian)和(he)無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)網(wang)線(xian)(xian)(xian)。因為在(zai)(zai)市面上大(da)部分(fen)的(de)普(pu)(pu)通(tong)全(quan)(quan)銅(tong)(tong)網(wang)線(xian)(xian)(xian)內層(ceng)(ceng)都是(shi)(shi)二料，顏(yan)色比(bi)較(jiao)(jiao)暗淡。無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)網(wang)線(xian)(xian)(xian)的(de)內層(ceng)(ceng)基本是(shi)(shi)新料，顏(yan)色比(bi)較(jiao)(jiao)亮。如果不能用這種辦法就可以(yi)用火燒，普(pu)(pu)通(tong)全(quan)(quan)銅(tong)(tong)外層(ceng)(ceng)迅速融化，并且發(fa)(fa)黑無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)網(wang)線(xian)(xian)(xian)只是(shi)(shi)顏(yan)色會(hui)稍微深(shen)，不會(hui)發(fa)(fa)黑。或者用刀刮表層(ceng)(ceng)，普(pu)(pu)通(tong)全(quan)(quan)銅(tong)(tong)的(de)顏(yan)色會(hui)有點發(fa)(fa)白，而無(wu)(wu)(wu)氧(yang)(yang)(yang)銅(tong)(tong)則沒有改變(bian)。（編輯：楊劍鋒）