芯數(shù)截面 Nom.cross sectional areas mm2 | 導(dǎo)體結(jié)構(gòu) Conductor structure NO./mm | 絕緣厚度 Insulation thickness mm | 護(hù)套厚度 Sheath thickness mm | 電纜外徑 Average diameter | 參考重量 Cable approx. weight kg/km | 導(dǎo)體(銅)zui大直流電阻 Max.D.C. resistance(20 ℃ ) Ω /km | 20 ℃載流量 Current carring capacity(20 ℃ ) A |