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[功率载流] 铜铝导体短路电流
P:2024-07-26 14:08:38
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附表1 铜铝导体短路电流(kA) | ||||||||||
短路时间1秒 | ||||||||||
导体截面 | 铜 | 铝 | ||||||||
mm2 | 短路起始温度℃ | 短路起始温度℃ | ||||||||
35 | 50 | 65 | 80 | 90 | 35 | 50 | 65 | 80 | 90 | |
10 | 1.81 | 1.73 | 1.64 | 1.57 | 1.51 | 1.19 | 1.13 | 1.08 | 1.03 | |
16 | 2.87 | 2.74 | 2.6 | 2.49 | 2.39 | 1.88 | 1.8 | 1.71 | 1.63 | 1.56 |
25 | 4.45 | 4.24 | 4.03 | 3.85 | 3.69 | 2.91 | 2.78 | 2.65 | 2.52 | 2.42 |
35 | 6.2 | 5.91 | 5.62 | 5.37 | 5.15 | 4.06 | 3.88 | 3.7 | 3.52 | 3.37 |
50 | 8.81 | 8.4 | 7.98 | 7.62 | 7.31 | 5.77 | 5.51 | 5.25 | 5 | 4.79 |
70 | 12.3 | 11.7 | 11.1 | 10.6 | 10.2 | 8.04 | 7.69 | 7.33 | 6.97 | 6.68 |
95 | 16.6 | 15.8 | 15 | 14.4 | 13.8 | 10.9 | 10.4 | 9.9 | 9.42 | 9.03 |
120 | 20.9 | 19.9 | 19 | 18.1 | 17.4 | 13.7 | 13.1 | 12.5 | 11.9 | 11.4 |
150 | 26.1 | 24.9 | 23.7 | 22.6 | 21.7 | 17.1 | 16.3 | 15.6 | 14.8 | 14.2 |
185 | 32.1 | 30.6 | 29.1 | 27.8 | 26.7 | 21.1 | 20.1 | 19.2 | 18.2 | 17.5 |
240 | 41.6 | 39.7 | 37.7 | 36 | 34.6 | 27.3 | 26 | 24.8 | 23.6 | 22.6 |
300 | 51.9 | 49.5 | 47.1 | 44.9 | 43.1 | 34 | 32.5 | 31 | 29.5 | 28.2 |
400 | 69.1 | 65.9 | 62.6 | 59.8 | 57.4 | 45.2 | 43.2 | 41.2 | 39.2 | 37.6 |
500 | 86.4 | 82.3 | 78.3 | 74.7 | 71.7 | 56.6 | 54 | 51.5 | 49 | 47 |
630 | 107 | 102 | 96.9 | 92.5 | 88.8 | 70 | 66.9 | 63.8 | 60.6 | 58 |
I1=I1/√tk I1——tk秒钟短路电流 | ||||||||||
I1————1秒钟短路电流(见上表) | ||||||||||
tk—— tk秒钟 |
single chip microcontroller - 单片微型控制器 (0) 投诉
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