| AWG | 直径 | 直径之倒数 | 截面积 | 铜阻抗 | 铜线容许电流 | 铜线容许电流 | 铜线容许电流 | 熔断电流 | 熔断电流 | 熔断电流 |
|---|---|---|---|---|---|---|---|---|---|---|
| (mm) | (per cm) | (mm2) | (mΩ/m) | 60°C | 75°C | 90°C | ~10s | 1s | 32ms | |
| 0000 (4/0) | 11.684 | 0.856 | 107 | 0.1608 | 195 | 230 | 260 | 3.2 kA | 33 kA | 182 kA |
| 000 (3/0) | 10.405 | 0.961 | 85.0 | 0.2028 | 165 | 200 | 225 | 2.7 kA | 26 kA | 144 kA |
| 00 (2/0) | 9.266 | 1.08 | 67.4 | 0.2557 | 145 | 175 | 195 | 2.3 kA | 21 kA | 115 kA |
| 0 (1/0) | 8.251 | 1.21 | 53.5 | 0.3224 | 125 | 150 | 170 | 1.9 kA | 16 kA | 91 kA |
| 1 | 7.348 | 1.36 | 42.4 | 0.4066 | 110 | 130 | 145 | 1.6 kA | 13 kA | 72 kA |
| 2 | 6.544 | 1.53 | 33.6 | 0.5127 | 95 | 115 | 130 | 1.3 kA | 10.2 kA | 57 kA |
| 3 | 5.827 | 1.72 | 26.7 | 0.6465 | 85 | 100 | 115 | 1.1 kA | 8.1 kA | 45 kA |
| 4 | 5.189 | 1.93 | 21.2 | 0.8152 | 70 | 85 | 95 | 946 A | 6.4 kA | 36 kA |
| 5 | 4.621 | 2.16 | 16.8 | 1.028 | 795 A | 5.1 kA | 28 kA | |||
| 6 | 4.115 | 2.43 | 13.3 | 1.296 | 55 | 65 | 75 | 668 A | 4.0 kA | 23 kA |
| 7 | 3.665 | 2.73 | 10.5 | 1.634 | 561 A | 3.2 kA | 18 kA | |||
| 8 | 3.264 | 3.06 | 8.37 | 2.061 | 40 | 50 | 55 | 472 A | 2.5 kA | 14 kA |
| 9 | 2.906 | 3.44 | 6.63 | 2.599 | 396 A | 2.0 kA | 11 kA | |||
| 10 | 2.588 | 3.86 | 5.26 | 3.277 | 30 | 35 | 40 | 333 A | 1.6 kA | 8.9 kA |
| 11 | 2.305 | 4.34 | 4.17 | 4.132 | 280 A | 1.3 kA | 7.1 kA | |||
| 12 | 2.053 | 4.87 | 3.31 | 5.211 | 20 | 25 | 30 | 235 A | 1.0 kA | 5.6 kA |
| 13 | 1.828 | 5.47 | 2.62 | 6.571 | 198 A | 798 A | 4.5 kA | |||
| 14 | 1.628 | 6.14 | 2.08 | 8.286 | 15 | 20 | 25 | 166 A | 633 A | 3.5 kA |
| 15 | 1.450 | 6.90 | 1.65 | 10.45 | 140 A | 502 A | 2.8 kA | |||
| 16 | 1.291 | 7.75 | 1.31 | 13.17 | 22 | 13 | 18 | 117 A | 398 A | 2.2 kA |
| 17 | 1.150 | 8.70 | 1.04 | 16.61 | 99 A | 316 A | 1.8 kA | |||
| 18 | 1.024 | 9.77 | 0.823 | 20.95 | 10 | 14 | 16 | 83 A | 250 A | 1.4 kA |
| 19 | 0.912 | 11.0 | 0.653 | 26.42 | — | — | — | 70 A | 198 A | 1.1 kA |
| 20 | 0.812 | 12.3 | 0.518 | 33.31 | 5 | 11 | — | 58.5 A | 158 A | 882 A |
| 21 | 0.723 | 13.8 | 0.410 | 42.00 | — | — | — | 49 A | 125 A | 700 A |
| 22 | 0.644 | 15.5 | 0.326 | 52.96 | 3 | 7 | — | 41 A | 99 A | 551 A |
| 23 | 0.573 | 17.4 | 0.258 | 66.79 | — | — | — | 35 A | 79 A | 440 A |
| 24 | 0.511 | 19.6 | 0.205 | 84.22 | 2.1 | 3.5 | — | 29 A | 62 A | 348 A |
| 25 | 0.455 | 22.0 | 0.162 | 106.2 | — | — | — | 24 A | 49 A | 276 A |
| 26 | 0.405 | 24.7 | 0.129 | 133.9 | 1.3 | 2.2 | — | 20 A | 39 A | 218 A |
| 27 | 0.361 | 27.7 | 0.102 | 168.9 | — | — | — | 17 A | 31 A | 174 A |
| 28 | 0.321 | 31.1 | 0.0810 | 212.9 | 0.83 | 1.4 | — | 14 A | 24 A | 137 A |
| 29 | 0.286 | 35.0 | 0.0642 | 268.5 | — | — | — | 12 A | 20 A | 110 A |
| 30 | 0.255 | 39.3 | 0.0509 | 338.6 | 0.52 | 0.86 | — | 10 A | 15 A | 86 A |
| 31 | 0.227 | 44.1 | 0.0404 | 426.9 | — | — | — | 9 A | 12 A | 69 A |
| 32 | 0.202 | 49.5 | 0.0320 | 538.3 | 0.32 | 0.53 | — | 7 A | 10 A | 54 A |
| 33 | 0.180 | 55.6 | 0.0254 | 678.8 | — | — | — | 6 A | 7.7 A | 43 A |
| 34 | 0.160 | 62.4 | 0.0201 | 856.0 | 0.18 | 0.3 | — | 5 A | 6.1 A | 34 A |
| 35 | 0.143 | 70.1 | 0.0160 | 1079 | — | — | — | 4 A | 4.8 A | 27 A |
| 36 | 0.127 | 78.7 | 0.0127 | 1361 | — | — | — | 4 A | 3.9 A | 22 A |
| 37 | 0.113 | 88.4 | 0.0100 | 1716 | — | — | — | 3 A | 3.1 A | 17 A |
| 38 | 0.101 | 99.3 | 0.00797 | 2164 | — | — | — | 3 A | 2.4 A | 14 A |
| 39 | 0.0897 | 111 | 0.00632 | 2729 | — | — | — | 2 A | 1.9 A | 11 A |
| 40 | 0.0799 | 125 | 0.00501 | 3441 | — | — | — | 1 A | 1.5 A | 8.5 A |