截面 | 一类 二类 五类 六类 根/单丝直径/导体外径 | 交联 导体 | 直流电阻Ω/KM（20℃） | ||||
铜 | 镀锡铜 | 铜（软） | 镀锡铜（软） | 铝 | |||
0.5 | 1/0.80 7/0.30/0.9 16/0.20/0.95 | 36.0 | 36.7 | 39.0 | 40.1 | ||
0.75 | 1/0.97 7/0.37/1.15 24/0.20/1.20 | 24.5 | 24.8 | 26.0 | 26.7 | ||
1.0 | 1/1.13 7/0.43/1.30 32/0.20/1.35 | 18.1 | 18.2 | 19.5 | 20.0 | ||
1.5 | 1/1.38 7/0.52/1.56 30/0.25/1.60 | 12.1 | 12.2 | 13.3 | 13.7 | ||
2.5 | 1/1.78 7/0.68/2.05 19/0.41/2.6 49/0.25/2.1 | 7.41 | 7.56 | 7.98 | 8.21 | 11.8 | |
4 | 1/2.25 7/0.85/2.55 19/0.52/3.2 56/0.30/3.2 | 4.61 | 4.70 | 4.95 | 5.09 | 7.41 | |
6 | 1/2.76 7/1.04/3.15 19/0.64/4.0 84/0.30/3.9 | 3.08 | 3.11 | 3.30 | 3.39 | 4.61 | |
10 | 7/1.35/4.05 49/0.52/5.6 84/0.40/5.1 | 1.83 | 1.84 | 1.91 | 1.95 | 3.08 | |
16 | 7/1.70/5.1 49/0.64/6.8 136(18*7)/0.40/6.3 | 1.15 | 1.16 | 1.21 | 1.24 | 1.91 | |
25 | 7/2.14/6.42 98/0.58/8.6 196(28*7)/0.40/7.8 | 7/2.26 | 0.727 | 0.734 | 0.780 | 0.795 | 1.20 |
35 | 7/2.52/7.8 133/0.58/9.56 276(14*19)/0.40/10.1 | 7/2.65 | 0.524 | 0.529 | 0.554 | 0.565 | 0.868 |
50 | 7/3.0/9.3 19/1.78/8.9 133/0.68/11.7 396(21*19)/0.40/11.0 | 7/3.10 | 0.387 | 0.391 | 0.386 | 0.393 | 0.641 |
70 | 19/2.14/10.7 189/0.68/13.7 360(19*19)/0.50/13.1 | 19/2.26 | 0.268 | 0.270 | 0.272 | 0.277 | 0.443 |
95 | 19/2.52/12.6 262/0.68/15.8 475(25*19或13*37)/0.50/15.1 | 19/2.65 | 0.193 | 0.195 | 0.206 | 0.210 | 0.320 |
120 | 19/2.83/15.0 37/2.03/14.21 608(16*37)/0.50/17.0 | 19/3.0 | 0.153 | 0.154 | 0.161 | 0.164 | 0.253 |
150 | 37/2.25/15.75 756(20*37)/0.50/19.0 | 36/2.40 | 0.124 | 0.126 | 0.129 | 0.132 | 0.206 |
185 | 37/2.52/17.64 925(25*37)/0.50/21.0 | 36/2.65 | 0.0991 | 0.106 | 0.106 | 0.108 | 0.164 |
240 | 37/2.86/19.95 1221(33*37)/0.50/24.0 | 36/3.0 | 0.0754 | 0.0762 | 0.0801 | 0.0817 | 0.125 |
300 | 61/2.52/24.7 1528(41*37)/0.50/29.0 | 59/2.65 | 0.0601 | 0.0607 | 0.0641 | 0.0654 | 0.100 |
400 | 61/2.86 2013/0.50 | 0.0470 | 0.0475 | 0.0486 | 0.0495 | 0.0778 | |
