导体标 称截面 mm2 |
导体 种类 |
导体结构 (根数 / 单根线径) |
绝缘厚度 规定值 mm |
尼龙护套 厚度规定值 mm |
平均外径上限 mm |
20 ℃时导体电阻最大值(Ω /km) |
70 ℃时最小 绝缘电阻 M Ω· km |
|
铜芯 |
镀锡 |
|||||||
1.5 |
1 |
1/1.38 |
0.4 |
0.10 |
2.9 |
12.1 |
12.2 |
0.011 |
1.5 |
2 |
7/0.52 |
0.4 |
0.10 |
3.0 |
12.1 |
12.2 |
0.010 |
2.5 |
1 |
1/1.78 |
0.4 |
0.10 |
3.3 |
7.41 |
7.56 |
0.010 |
2.5 |
2 |
7/0.68 |
0.4 |
0.10 |
3.4 |
7.41 |
7.56 |
0.009 |
4 |
1 |
1/2.25 |
0.4 |
0.10 |
3.8 |
4.61 |
4.70 |
0.0085 |
4 |
2 |
7/0.85 |
0.4 |
0.10 |
4.0 |
4.61 |
4.70 |
0.0077 |
6 |
1 |
1/2.76 |
0.5 |
0.10 |
4.7 |
3.08 |
3.11 |
0.0070 |
6 |
2 |
7/1.04 |
0.5 |
0.10 |
4.9 |
3.08 |
3.11 |
0.0065 |
10 |
1 |
1/3.58 |
0.7 |
0.13 |
6.2 |
1.83 |
1.84 |
0.0070 |
10 |
2 |
7/1.35 |
0.7 |
0.13 |
6.5 |
1.83 |
1.84 |
0.0065 |
16 |
2 |
7/1.70 |
0.8 |
0.13 |
7.8 |
1.15 |
1.16 |
0.0050 |
25 |
2 |
7/2.14 |
1.0 |
0.15 |
9.9 |
0.727 |
0.734 |
0.0050 |
35 |
2 |
7/2.52 |
1.0 |
0.15 |
11.0 |
0.524 |
0.529 |
0.0043 |
50 |
2 |
19/1.78 |
1.2 |
0.18 |
13.0 |
0.387 |
0.391 |
0.0043 |
70 |
2 |
19/2.14 |
1.3 |
0.18 |
15.5 |
0.268 |
0.270 |
0.0035 |
95 |
2 |
19/2.52 |
1.3 |
0.18 |
17.0 |
0.193 |
0.195 |
0.0035 |
120 |
2 |
37/2.03 |
1.4 |
0.18 |
19.0 |
0.153 |
0.154 |
0.0032 |
150 |
2 |
37/2.25 |
1.5 |
0.20 |
21.0 |
0.124 |
0.126 |
0.0032 |
185 |
2 |
37/2.52 |
1.6 |
0.20 |
23.5 |
0.0991 |
0.100 |
0.0032 |
240 |
2 |
61/2.25 |
1.6 |
0.20 |
26.0 |
0.0754 |
0.0762 |
0.0032 |
300 |
2 |
61/2.52 |
1.8 |
0.23 |
29.0 |
0.0601 |
0.0607 |
0.0030 |
400 |
2 |
61/2.85 |
1.8 |
0.23 |
32.5 |
0.0470 |
0.0475 |
0.0028 |