美制AWG电线规格
美国线规(英文是 American wire gauge,缩写为 AWG),是一種區分導線直徑的標 準,又被稱為 Brown & Sharpe 線規。這種標準化線規系統於 1857 年起在美國開始使用。
導線的直徑與導線承載電流的能力有很大關係。線規數字越小,表示線材直徑越 粗,所能承載的電流就越大;反之,線規數字越大,表示線材直徑越細,所能承載的 電流就越小。 随着现代工艺和材料的提升(如:多股、镀锡、硅胶外皮等),导线的阻值及所承受的电流也不一样。
下表将列取AWG与公制、英制单位的对照表:
电阻为常温20℃时结果。单位说明:Mil=0.001英寸,Circular Mil=以0.001英寸为直径的圆面积,MCM=kcmil=1000 Circular Mil
AWG | 外径(mm) | 外径(inch) | 面积(mm2) | 面积(kcmil) | 电阻(Ω/km) | 正常电流(A) | 最大电流(A) |
---|---|---|---|---|---|---|---|
0000(4/0) | 11.684 | 0.46 | 107 | 212 | 0.1608 | 423.2 | 482.6 |
000(3/0) | 10.404 | 0.4096 | 85 | 168 | 0.2028 | 335.5 | 382.6 |
00(2/0) | 9.266 | 0.3648 | 67.4 | 133 | 0.2557 | 266.2 | 303.5 |
0(1/0) | 8.252 | 0.3249 | 53.5 | 106 | 0.3224 | 211.1 | 240.7 |
1 | 7.348 | 0.2893 | 42.4 | 83.7 | 0.4066 | 167.4 | 190.9 |
2 | 6.544 | 0.2576 | 33.6 | 66.4 | 0.5127 | 132.7 | 151.3 |
3 | 5.827 | 0.2294 | 26.7 | 52.6 | 0.6465 | 105.2 | 120.0 |
4 | 5.189 | 0.2043 | 21.2 | 41.7 | 0.8152 | 83.5 | 95.2 |
5 | 4.621 | 0.1819 | 16.8 | 33.1 | 1.028 | 66.2 | 75.5 |
6 | 4.115 | 0.162 | 13.3 | 26.3 | 1.296 | 52.5 | 59.9 |
7 | 3.665 | 0.1443 | 10.5 | 20.8 | 1.634 | 41.6 | 47.5 |
8 | 3.264 | 0.1285 | 8.37 | 16.5 | 2.061 | 33.0 | 37.7 |
9 | 2.906 | 0.1144 | 6.63 | 13.1 | 2.599 | 26.2 | 29.8 |
10 | 2.588 | 0.1019 | 5.26 | 10.4 | 3.277 | 20.8 | 23.7 |
11 | 2.305 | 0.0907 | 4.17 | 8.23 | 4.132 | 16.5 | 18.8 |
12 | 2.053 | 0.0808 | 3.31 | 6.53 | 5.211 | 13.1 | 14.9 |
13 | 1.828 | 0.072 | 2.62 | 5.18 | 6.571 | 10.4 | 11.8 |
14 | 1.628 | 0.0641 | 2.08 | 4.11 | 8.286 | 8.2 | 9.4 |
15 | 1.45 | 0.0571 | 1.65 | 3.26 | 10.45 | 6.5 | 7.4 |
16 | 1.291 | 0.0508 | 1.31 | 2.58 | 13.17 | 5.2 | 5.9 |
17 | 1.15 | 0.0453 | 1.04 | 2.05 | 16.61 | 4.1 | 4.7 |
18 | 1.024 | 0.0403 | 0.823 | 1.62 | 20.95 | 3.2 | 3.7 |
19 | 0.912 | 0.0359 | 0.653 | 1.29 | 26.42 | 2.6 | 2.9 |
20 | 0.812 | 0.032 | 0.518 | 1.02 | 33.31 | 2.0 | 2.3 |
21 | 0.723 | 0.0285 | 0.41 | 0.81 | 42 | 1.6 | 1.9 |
22 | 0.644 | 0.0253 | 0.326 | 0.642 | 52.96 | 1.280 | 1.460 |
23 | 0.573 | 0.0226 | 0.258 | 0.509 | 66.79 | 1.022 | 1.165 |
24 | 0.511 | 0.0201 | 0.205 | 0.404 | 84.22 | 0.808 | 0.921 |
25 | 0.455 | 0.0179 | 0.162 | 0.32 | 106.2 | 0.641 | 0.731 |
26 | 0.405 | 0.0159 | 0.129 | 0.254 | 133.9 | 0.506 | 0.577 |
27 | 0.361 | 0.0142 | 0.1021 | 0.202 | 168.9 | 0.403 | 0.460 |
28 | 0.321 | 0.0126 | 0.081 | 0.16 | 212.9 | 0.318 | 0.362 |
29 | 0.287 | 0.0113 | 0.0647 | 0.127 | 268.5 | 0.255 | 0.291 |
30 | 0.255 | 0.01 | 0.0509 | 0.101 | 338.6 | 0.200 | 0.228 |
31 | 0.227 | 0.00893 | 0.0404 | 0.0797 | 426.9 | 0.158 | 0.181 |
32 | 0.202 | 0.00795 | 0.032 | 0.0632 | 538.3 | 0.128 | 0.146 |
33 | 0.18 | 0.00708 | 0.0254 | 0.0501 | 678.8 | 0.101 | 0.115 |
34 | 0.16 | 0.0063 | 0.0201 | 0.0398 | 856 | 0.079 | 0.091 |
35 | 0.143 | 0.00561 | 0.016 | 0.0315 | 1079 | 0.063 | 0.072 |
36 | 0.127 | 0.005 | 0.0127 | 0.025 | 1361 | 0.050 | 0.057 |
37 | 0.113 | 0.00445 | 0.01 | 0.0198 | 1716 | 0.041 | 0.046 |
38 | 0.101 | 0.00397 | 0.00797 | 0.0157 | 2164 | 0.032 | 0.036 |
39 | 0.0897 | 0.00353 | 0.00632 | 0.0125 | 2729 | 0.025 | 0.028 |
40 | 0.0799 | 0.00314 | 0.00501 | 0.00989 | 3441 | 0.019 | 0.022 |
41 | 0.071 | 0.0028 | 0.004 | 4080 | 0.016 | 0.018 | |
42 | 0.064 | 0.0025 | 0.0032 | 5544 | 0.013 | 0.014 | |
43 | 0.056 | 0.0022 | 0.0025 | 6300 | 0.010 | 0.011 | |
44 | 0.051 | 0.002 | 0.002 | 9180 | 0.008 | 0.009 | |
45 | 0.046 | 0.0018 | 0.0016 | 10200 | 0.006 | 0.007 | |
46 | 0.041 | 0.0016 | 0.0013 | 16300 | 0.005 | 0.006 |