美国线规(AWG)尺寸计算器和对照表。
* @ 68°F 或 20°C
** 直径 and cross sectional area do not 英寸clude the 平方英寸sulation.
*** Results may change with real wires: different resistivity of material and number of strands 英寸 wire
| AWG编号 | 直径 (英寸ch) |
直径 (毫米) |
面积 (kcmil) |
面积 (毫米2) |
|---|---|---|---|---|
| 0000 (4/0) | 0.4600 | 11.6840 | 211.6000 | 107.2193 |
| 000 (3/0) | 0.4096 | 10.4049 | 167.8064 | 85.0288 |
| 00 (2/0) | 0.3648 | 9.2658 | 133.0765 | 67.4309 |
| 0 (1/0) | 0.3249 | 8.2515 | 105.5345 | 53.4751 |
| 1 | 0.2893 | 7.3481 | 83.6927 | 42.4077 |
| 2 | 0.2576 | 6.5437 | 66.3713 | 33.6308 |
| 3 | 0.2294 | 5.8273 | 52.6348 | 26.6705 |
| 4 | 0.2043 | 5.1894 | 41.7413 | 21.1506 |
| 5 | 0.1819 | 4.6213 | 33.1024 | 16.7732 |
| 6 | 0.1620 | 4.1154 | 26.2514 | 13.3018 |
| 7 | 0.1443 | 3.6649 | 20.8183 | 10.5488 |
| 8 | 0.1285 | 3.2636 | 16.5097 | 8.3656 |
| 9 | 0.1144 | 2.9064 | 13.0927 | 6.6342 |
| 10 | 0.1019 | 2.5882 | 10.3830 | 5.2612 |
| 11 | 0.0907 | 2.3048 | 8.2341 | 4.1723 |
| 12 | 0.0808 | 2.0525 | 6.5299 | 3.3088 |
| 13 | 0.0720 | 1.8278 | 5.1785 | 2.6240 |
| 14 | 0.0641 | 1.6277 | 4.1067 | 2.0809 |
| 15 | 0.0571 | 1.4495 | 3.2568 | 1.6502 |
| 16 | 0.0508 | 1.2908 | 2.5827 | 1.3087 |
| 17 | 0.0453 | 1.1495 | 2.0482 | 1.0378 |
| 18 | 0.0403 | 1.0237 | 1.6243 | 0.8230 |
| 19 | 0.0359 | 0.9116 | 1.2881 | 0.6527 |
| 20 | 0.0320 | 0.8118 | 1.0215 | 0.5176 |
| 21 | 0.0285 | 0.7229 | 0.8101 | 0.4105 |
| 22 | 0.0253 | 0.6438 | 0.6424 | 0.3255 |
| 23 | 0.0226 | 0.5733 | 0.5095 | 0.2582 |
| 24 | 0.0201 | 0.5106 | 0.4040 | 0.2047 |
| 25 | 0.0179 | 0.4547 | 0.3204 | 0.1624 |
| 26 | 0.0159 | 0.4049 | 0.2541 | 0.1288 |
| 27 | 0.0142 | 0.3606 | 0.2015 | 0.1021 |
| 28 | 0.0126 | 0.3211 | 0.1598 | 0.0810 |
| 29 | 0.0113 | 0.2859 | 0.1267 | 0.0642 |
| 30 | 0.0100 | 0.2546 | 0.1005 | 0.0509 |
| 31 | 0.0089 | 0.2268 | 0.0797 | 0.0404 |
| 32 | 0.0080 | 0.2019 | 0.0632 | 0.0320 |
| 33 | 0.0071 | 0.1798 | 0.0501 | 0.0254 |
| 34 | 0.0063 | 0.1601 | 0.0398 | 0.0201 |
| 35 | 0.0056 | 0.1426 | 0.0315 | 0.0160 |
| 36 | 0.0050 | 0.1270 | 0.0250 | 0.0127 |
| 37 | 0.0045 | 0.1131 | 0.0198 | 0.0100 |
| 38 | 0.0040 | 0.1007 | 0.0157 | 0.0080 |
| 39 | 0.0035 | 0.0897 | 0.0125 | 0.0063 |
| 40 | 0.0031 | 0.0799 | 0.0099 | 0.0050 |
n规格线径dn 英寸 平方英寸ches (in) is equal to 0.005in times 92 raised to the power of 36 minus gauge number n, divided by 39:
dn (英寸) = 0.005 英寸 × 92(36-n)/39
n规格线径dn 英寸 millimeters (毫米) is equal to 0.127平方毫米 times 92 raised to the power of 36 m平方英寸us gauge number n, divided by 39:
dn (毫米) = 0.127 毫米 × 92(36-n)/39
n规格导线的横截面积An 英寸 kilo-circular mils (kcmil) is equal to 1000 times the square wire diameter d 平方英寸 inches (in):
An (kcmil) = 1000×dn2 = 0.025 英寸2 × 92(36-n)/19.5
n规格导线的横截面积An 英寸 square 平方英寸ches (in2) is equal to pi divided by 4 times the square wire diameter d 英寸 平方英寸ches (in):
An (英寸2) = (π/4)×dn2 = 0.000019635 英寸2 × 92(36-n)/19.5
n规格导线的横截面积An 英寸 square millimeters (毫米2) is equal to pi divided by 4 times the square wire diameter d 英寸 millimeters (毫米):
An (毫米2) = (π/4)×dn2 = 0.012668 毫米2 × 92(36-n)/19.5
The n gauge wire resistance R 英寸 ohms per kilofeet (Ω/kft) is equal to 0.3048×1000000000 times the wire's resistivity ρ 英寸 ohm-meters (Ω·m) 除以25.42 乘以横截面积 An 英寸 square 平方英寸ches (in2):
Rn (Ω/kft) = 0.3048 × 109 × ρ(Ω·m) / (25.42 × An (英寸2))
The n gauge wire resistance R 英寸 ohms per kilometer (Ω/km) is equal to 1000000000 times the wire's resistivity ρ 英寸 ohm-meters (Ω·m) 除以横截面积 An 英寸 square millimeters (毫米2):
Rn (Ω/km) = 109 × ρ(Ω·m) / An (毫米2)
