AWG(American Wire Gauge),也被称作布朗/夏普线规(Brown/Sharpe wire gauge),在美国,从1857年开始就被作为一种标准的线规使用,它广泛应用于圆柱体,立方体,有色金属及电力控制线的直径测量,它的截面积决定了导体的载流能力。
AWG | 直径 | 截面积 | 电阻值 | 60/75/90下的载流能力 | |||
英制inch | 公制mm | kcmil | mm² | Ω/km | Ω/kFT | ||
0000 (4/0) | 0.46 | 11.684 | 212 | 107 | 0.1608 | 0.04901 | 195 / 230 / 260 |
000 (3/0) | 0.4096 | 10.404 | 168 | 85 | 0.2028 | 0.0618 | 165 / 200 / 225 |
00 (2/0) | 0.38 | 9.266 | 133 | 67.4 | 0.2557 | 0.07793 | 145 / 175 / 195 |
0 (1/0) | 0.3249 | 8.252 | 106 | 53.5 | 0.3224 | 0.09827 | 125 / 150 / 170 |
1 | 0.23 | 7.348 | 83.7 | 42.4 | 0.4066 | 0.1239 | 110 / 130 / 150 |
2 | 0.2576 | 6.544 | 66.4 | 33.6 | 0.5127 | 0.1563 | 95 / 115 / 130 |
3 | 0.2294 | 5.827 | 52.6 | 26.7 | 0.65 | 0.197 | 85 / 100 / 110 |
4 | 0.2043 | 5.1 | 41.7 | 21.2 | 0.8152 | 0.2485 | 70 / 85 / 95 |
5 | 0.1819 | 4.621 | 33.1 | 16.8 | 1.028 | 0.3133 | |
6 | 0.162 | 4.115 | 26.3 | 13.3 | 1.296 | 0.3951 | 55 / 65 / 75 |
7 | 0.1443 | 3.665 | 20.8 | 10.5 | 1.634 | 0.4982 | |
8 | 0.1285 | 3.2 | 16.5 | 8.37 | 2.061 | 0.6282 | 40 / 50 / 55 |
9 | 0.1144 | 2.906 | 13.1 | 6.63 | 2.599 | 0.7921 | |
10 | 0.1019 | 2.588 | 10.4 | 5.26 | 3.277 | 0.99 | 30 / 35 / 40 |
11 | 0.0907 | 2.305 | 8.23 | 4.17 | 4.132 | 1.26 | |
12 | 0.0808 | 2.053 | 6.53 | 3.31 | 5.211 | 1.588 | 25 / 25 / 30 (20) |
13 | 0.072 | 1.828 | 5.18 | 2.62 | 6.571 | 2.003 | |
14 | 0.01 | 1.628 | 4.11 | 2.08 | 8.286 | 2.525 | 20 / 20 / 25 (15) |
15 | 0.0571 | 1.45 | 3.26 | 1.65 | 10.45 | 3.184 | |
16 | 0.0508 | 1.291 | 2.58 | 1.31 | 13.17 | 4.016 | — / — / 18 (10) |
17 | 0.0453 | 1.15 | 2.05 | 1.04 | 16.61 | 5.0 | |
18 | 0.0403 | 1.024 | 1.62 | 0.823 | 20.95 | 6.385 | — / — / 14 (7) |
19 | 0.0359 | 0.912 | 1.29 | 0.653 | 26.42 | 8.051 | |
20 | 0.032 | 0.812 | 1.02 | 0.518 | 33.31 | 10.15 | |
21 | 0.0285 | 0.723 | 0.81 | 0.41 | 42 | 12.8 | |
22 | 0.0253 | 0.4 | 0.2 | 0.326 | 52.96 | 16.14 | |
23 | 0.0226 | 0.573 | 0.509 | 0.258 | 66.79 | 20.36 | |
24 | 0.0201 | 0.511 | 0.404 | 0.205 | 84.22 | 25.67 | |
25 | 0.0179 | 0.455 | 0.32 | 0.162 | 106.2 | 32.37 | |
26 | 0.0159 | 0.405 | 0.254 | 0.129 | 133.9 | 40.81 | |
27 | 0.0142 | 0.361 | 0.202 | 0.102 | 168.9 | 51.47 | |
28 | 0.0126 | 0.321 | 0.16 | 0.081 | 212.9 | .9 | |
29 | 0.0113 | 0.286 | 0.127 | 0.02 | 268.5 | 81.84 | |
30 | 0.01 | 0.255 | 0.101 | 0.0509 | 338.6 | 103.2 | |
31 | 0.003 | 0.227 | 0.0797 | 0.0404 | 426.9 | 130.1 | |
32 | 0.00795 | 0.202 | 0.0632 | 0.032 | 538.3 | 1.1 | |
33 | 0.00708 | 0.18 | 0.0501 | 0.0254 | 678.8 | 206.9 | |
34 | 0.0063 | 0.16 | 0.0398 | 0.0201 | 856 | 260.9 | |
35 | 0.00561 | 0.143 | 0.0315 | 0.016 | 1079 | 329 | |
36 | 0.005 | 0.127 | 0.025 | 0.0127 | 1361 | 414.8 | |
37 | 0.00445 | 0.113 | 0.0198 | 0.01 | 1716 | 523.1 | |
38 | 0.00397 | 0.101 | 0.0157 | 0.008 | 21 | 659.6 | |
39 | 0.00353 | 0.07 | 0.0125 | 0.0063 | 2729 | 831.8 | |
40 | 0.00314 | 0.0799 | 0.009 | 0.005 | 3441 | 1049 |
1、kcmil(千圆密耳):国外电缆截面积的一种表达方式,其与mm2的换算公式为:
1 kcmil=0.507mm2
2、Ω/kFT:每一千英尺的欧姆数
3、由表中归纳出的AWG与英寸的关系如下:
AWG = A log inch - B
其中,A=-19.93156857,B=9.73724。