標稱截面mm2 |
20℃時導體電阻不大于Ω/km |
90℃時絕緣電阻常數(shù)不小于MΩ·km |
芯數(shù) |
|
A類 |
R類 |
|||
1.5 |
12.1 |
13.3 |
50 |
2 3 4 5 3+1 3+2 4+1 |
2.5 |
7.41 |
7.98 |
||
4 |
4.61 |
4.95 |
||
6 |
3.08 |
3.30 |
||
10 |
1.83 |
1.91 |
||
16 |
1.15 |
1.21 |
||
25 |
0.727 |
0.780 |
||
35 |
0.524 |
0.554 |
||
50 |
0.387 |
0.386 |
||
70 |
0.268 |
0.272 |
||
95 |
0.193 |
0.206 |
||
120 |
0.153 |
0.161 |
||
150 |
0.124 |
0.129 |
||
185 |
0.0991 |
0.106 |
||
240 |
0.0754 |
0.0801 |