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AWG(American Wire Gauge)是美制电线标准的简称,AWG值是导线厚度(英寸计)的函数。AWG与公制、英制对照表中,4/0表示0000,3/0表示000,2/0表示00,1/0表示0。
例如,常用的电话线直径为26AWG,约为0.4mm。由表中归纳出的AWG与英寸的关系如下:
AWG | 外径 | 截面积 | 电阻值 | |
公制mm | 英制inch | (mm2) | (W/km) | |
1000MCM | 29.3 | 1.1539 | 507 | 0.036 |
900MCM | 27.8 | 1.0949 | 456 | 0.04 |
750MCM | 25.4 | 1 | 380 | 0.048 |
600MCM | 22.7 | 0.894 | 304 | 0.061 |
550MCM | 21.7 | 0.8543 | 279 | 0.066 |
500MCM | 20.7 | 0.815 | 253 | 0.07 |
400MCM | 18.5 | 0.7283 | 203 | 0.09 |
350MCM | 17.3 | 0.6811 | 177 | 0.1 |
300MCM | 16 | 0.6299 | 152 | 0.12 |
250MCM | 12.7 | 0.5 | 127 | 0.14 |
4/0 | 11.68 | 0.46 | 107.22 | 0.17 |
3/0 | 10.4 | 0.4096 | 85.01 | 0.21 |
2/0 | 9.27 | 0.3648 | 67.43 | 0.26 |
1/0 | 8.25 | 0.3249 | 53.49 | 0.33 |
1 | 7.35 | 0.2893 | 42.41 | 0.42 |
2 | 6.54 | 0.2576 | 33.62 | 0.53 |
3 | 5.83 | 0.2294 | 26.67 | 0.66 |
4 | 5.19 | 0.2043 | 21.15 | 0.84 |
5 | 4.62 | 0.1819 | 16.77 | 1.06 |
6 | 4.11 | 0.162 | 13.3 | 1.33 |
7 | 3.67 | 0.1443 | 10.55 | 1.68 |
8 | 3.26 | 0.1285 | 8.37 | 2.11 |
9 | 2.91 | 0.1144 | 6.63 | 2.67 |
10 | 2.59 | 0.1019 | 5.26 | 3.36 |
11 | 2.3 | 0.0907 | 4.17 | 4.24 |
12 | 2.05 | 0.0808 | 3.332 | 5.31 |
13 | 1.82 | 0.072 | 2.627 | 6.69 |
14 | 1.63 | 0.0641 | 2.075 | 8.45 |
15 | 1.45 | 0.0571 | 1.646 | 10.6 |
16 | 1.29 | 0.0508 | 1.318 | 13.5 |
17 | 1.15 | 0.0453 | 1.026 | 16.3 |
18 | 1.02 | 0.0403 | 0.8107 | 21.4 |
19 | 0.912 | 0.0359 | 0.5667 | 26.9 |
20 | 0.813 | 0.032 | 0.5189 | 33.9 |
21 | 0.724 | 0.0285 | 0.4116 | 42.7 |
22 | 0.643 | 0.0253 | 0.3247 | 54.3 |
23 | 0.574 | 0.0226 | 0.2588 | 48.5 |
24 | 0.511 | 0.0201 | 0.2047 | 89.4 |
25 | 0.44 | 0.0179 | 0.1624 | 79.6 |
26 | 0.404 | 0.0159 | 0.1281 | 143 |
27 | 0.361 | 0.0142 | 0.1021 | 128 |
28 | 0.32 | 0.0126 | 0.0804 | 227 |
29 | 0.287 | 0.0113 | 0.0647 | 289 |
30 | 0.254 | 0.01 | 0.0507 | 361 |
31 | 0.226 | 0.0089 | 0.0401 | 321 |
32 | 0.203 | 0.008 | 0.0316 | 583 |
33 | 0.18 | 0.0071 | 0.0255 | 944 |
34 | 0.16 | 0.0063 | 0.0201 | 956 |
35 | 0.142 | 0.0056 | 0.0169 | 1,200 |
36 | 0.127 | 0.005 | 0.0127 | 1,530 |
37 | 0.114 | 0.0045 | 0.0098 | 1,377 |
38 | 0.102 | 0.004 | 0.0081 | 2,400 |
39 | 0.089 | 0.0035 | 0.0062 | 2,100 |
40 | 0.079 | 0.0031 | 0.0049 | 4,080 |
41 | 0.071 | 0.0028 | 0.004 | 3,685 |
42 | 0.064 | 0.0025 | 0.0032 | 6,300 |
43 | 0.056 | 0.0022 | 0.0025 | 5,544 |
44 | 0.051 | 0.002 | 0.002 | 10,200 |
45 | 0.046 | 0.0018 | 0.0016 | 9,180 |
46 | 0.041 | 0.0016 | 0.0013 | 16,300 |