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mm2线规对照表补充载流量列(PVC明敷/XLPE空气中参考值)及降额要点

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2026-08-28 16:17:35 +08:00
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commit c66a44d142
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references/线规对照表_mm2_GB3956.csv
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标称截面mm2,等效实心直径mm,Class1/2铜电阻_20C_Ohm_per_km,Class5软铜电阻_20C_Ohm_per_km,约等AWG,常见用途
0.5,0.798,36.0,39.0,20,信号线、弱电控制线、屏蔽引线
0.75,0.977,24.5,26.0,18,控制线、灯线、二次回路
1.0,1.128,18.1,19.5,17,控制回路、仪器仪表引线
1.5,1.382,12.1,13.3,15,环路线圈本体、照明支路
2.5,1.784,7.41,7.98,13,环路线圈本体、插座回路、道闸电源
4,2.257,4.61,4.95,11,道闸/电机主回路、空调回路
6,2.764,3.08,3.3,9,道闸电机、小功率设备进线
10,3.568,1.83,1.91,7,设备电源进线、充电桩支路
16,4.514,1.15,1.21,5,配电支路、充电桩回路
25,5.642,0.727,0.78,3,配电干路、进线
35,6.676,0.524,0.554,2,总进线、充电桩干线
50,7.979,0.387,0.386,1/0,总进线、母排连接
70,9.441,0.268,0.272,2/0,大功率进线
95,10.998,0.193,0.206,3/0,低压出线、大功率回路
120,12.361,0.153,0.161,4/0,低压主进线
150,13.820,0.124,0.129,—,低压主进线
185,15.348,0.0991,0.106,—,低压主进线
240,17.481,0.0754,0.0801,—,低压主进线、密集型母线
300,19.544,0.0601,0.0641,—,低压主进线、母线槽
400,22.568,0.047,0.0486,—,大截面电缆、母线
500,25.231,0.0366,0.0384,—,大截面电缆、母线
630,28.322,0.0287,0.0287,—,大截面电缆、母线
标称截面mm2,等效实心直径mm,Class1/2铜电阻_20C_Ohm_per_km,Class5软铜电阻_20C_Ohm_per_km,约等AWG,常见用途,PVC载流量参考A,XLPE载流量参考A
0.5,0.798,36.0,39.0,20,信号线、弱电控制线、屏蔽引线,10,
0.75,0.977,24.5,26.0,18,控制线、灯线、二次回路,13,
1.0,1.128,18.1,19.5,17,控制回路、仪器仪表引线,16,
1.5,1.382,12.1,13.3,15,环路线圈本体、照明支路,20,24
2.5,1.784,7.41,7.98,13,环路线圈本体、插座回路、道闸电源,27,32
4,2.257,4.61,4.95,11,道闸/电机主回路、空调回路,36,42
6,2.764,3.08,3.3,9,道闸电机、小功率设备进线,46,54
10,3.568,1.83,1.91,7,设备电源进线、充电桩支路,63,57
16,4.514,1.15,1.21,5,配电支路、充电桩回路,85,76
25,5.642,0.727,0.78,3,配电干路、进线,112,101
35,6.676,0.524,0.554,2,总进线、充电桩干线,138,124
50,7.979,0.387,0.386,1/0,总进线、母排连接,168,149
70,9.441,0.268,0.272,2/0,大功率进线,213,188
95,10.998,0.193,0.206,3/0,低压出线、大功率回路,258,226
120,12.361,0.153,0.161,4/0,低压主进线,299,261
150,13.820,0.124,0.129,—,低压主进线,344,299
185,15.348,0.0991,0.106,—,低压主进线,392,340
240,17.481,0.0754,0.0801,—,低压主进线、密集型母线,461,400
300,19.544,0.0601,0.0641,—,低压主进线、母线槽,530,458
400,22.568,0.047,0.0486,—,大截面电缆、母线,620,540
500,25.231,0.0366,0.0384,—,大截面电缆、母线,705,620
630,28.322,0.0287,0.0287,—,大截面电缆、母线,800,720
1 标称截面mm2 等效实心直径mm Class1/2铜电阻_20C_Ohm_per_km Class5软铜电阻_20C_Ohm_per_km 约等AWG 常见用途 PVC载流量参考A XLPE载流量参考A
2 0.5 0.798 36.0 39.0 20 信号线、弱电控制线、屏蔽引线 10
3 0.75 0.977 24.5 26.0 18 控制线、灯线、二次回路 13
4 1.0 1.128 18.1 19.5 17 控制回路、仪器仪表引线 16
5 1.5 1.382 12.1 13.3 15 环路线圈本体、照明支路 20 24
6 2.5 1.784 7.41 7.98 13 环路线圈本体、插座回路、道闸电源 27 32
7 4 2.257 4.61 4.95 11 道闸/电机主回路、空调回路 36 42
8 6 2.764 3.08 3.3 9 道闸电机、小功率设备进线 46 54
9 10 3.568 1.83 1.91 7 设备电源进线、充电桩支路 63 57
10 16 4.514 1.15 1.21 5 配电支路、充电桩回路 85 76
11 25 5.642 0.727 0.78 3 配电干路、进线 112 101
12 35 6.676 0.524 0.554 2 总进线、充电桩干线 138 124
13 50 7.979 0.387 0.386 1/0 总进线、母排连接 168 149
14 70 9.441 0.268 0.272 2/0 大功率进线 213 188
15 95 10.998 0.193 0.206 3/0 低压出线、大功率回路 258 226
16 120 12.361 0.153 0.161 4/0 低压主进线 299 261
17 150 13.820 0.124 0.129 — 低压主进线 344 299
18 185 15.348 0.0991 0.106 — 低压主进线 392 340
19 240 17.481 0.0754 0.0801 — 低压主进线、密集型母线 461 400
20 300 19.544 0.0601 0.0641 — 低压主进线、母线槽 530 458
21 400 22.568 0.047 0.0486 — 大截面电缆、母线 620 540
22 500 25.231 0.0366 0.0384 — 大截面电缆、母线 705 620
23 630 28.322 0.0287 0.0287 — 大截面电缆、母线 800 720