导线面积mm2 | 空气敷设长期允许载流量(A) | |||
空气中 | 土壤中 | |||
铜 | 铝 | 铜 | 铝 |
1.5 | 15 | 22 | ||
2.5 | 19 | 15 | 19 | 23 |
4 | 26 | 20 | 36 | 30 |
6 | 32 | 26 | 47 | 39 |
10 | 46 | 35 | 65 | 50 |
16 | 60 | 47 | 84 | 65 |
25 | 77 | 60 | 110 | 84 |
35 | 95 | 74 | 130 | 100 |
50 | 115 | 90 | 155 | 120 |
70 | 145 | 115 | 195 | 150 |
95 | 185 | 140 | 230 | 185 |
120 | 210 | 165 | 260 | 205 |
150 | 245 | 190 | 300 | 230 |
185 | 280 | 215 | 335 | 260 |
240 | 335 | 260 | 390 | 300 |
300 | 375 | 295 | 435 | 340 |
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