英国和美国使用线号标记法。线号又称线规(wire gauge),按0、1、2、3……数码顺序表示,数码越大,线材越细。现今常使用的是美国线规(AWG),伯明翰线规(BWG)和英帝国标准线规(SWG) | |||||||||
|---|---|---|---|---|---|---|---|---|---|
AWG | Diameter | SWG | in | mm | B S | Inch | Inch | Millimeter | |
(inch) | (mm) | 7/0 | 0.5 | 12.7 | Gauge | Decimal | Fraction | mm | |
| 0000(4/0) | 0.46 | 11.684 | 6/0 | 0.464 | 11.786 | ||||
| 000(3/0) | 0.4096 | 10.404 | 5/0 | 0.432 | 10.973 | ||||
| 00(2/0) | 0.3648 | 9.266 | 4/0 | 0.4 | 10.16 | ||||
| 0(1/0) | 0.3249 | 8.252 | 3/0 | 0.372 | 9.449 | ||||
| 2/0 | 0.348 | ||||||||
| 0 | 0.324 | ||||||||
| 1 | 0.2893 | 7.348 | 1 | 0.3 | 8.839 | 1 | 0.289 | . | 7.348 |
| 2 | 0.2576 | 6.544 | 2 | 0.276 | 8.23 | 2 | 0.258 | . | 6.543 |
| 3 | 0.2294 | 5.827 | 3 | 0.252 | 7.62 | . | 0.25 | 1/4 | 6.35 |
| 4 | 0.2043 | 5.189 | 4 | 0.232 | 7.01 | . | 0.234 | 15/64 | 5.953 |
| 5 | 0.1819 | 4.621 | 5 | 0.212 | 6.401 | 3 | 0.229 | . | 5.827 |
| 6 | 0.162 | 4.115 | 6 | 0.192 | 5.893 | . | 0.219 | 7/32 | 5.556 |
| 7 | 0.1443 | 3.665 | 7 | 0.176 | 5.385 | 4 | 0.204 | 5.189 | |
| 8 | 0.1285 | 3.264 | 8 | 0.16 | 4.877 | . | 0.203 | 11/64 | 5.154 |
| 9 | 0.1144 | 2.906 | 9 | 0.144 | 4.47 | . | 0.188 | 3/16 | 4.762 |
| 10 | 0.1019 | 2.588 | 10 | 0.128 | 4.064 | 5 | 0.182 | . | 4.621 |
| 11 | 0.0907 | 2.305 | 11 | 0.116 | 3.658 | . | 0.172 | 11/64 | 4.366 |
| 12 | 0.0808 | 2.053 | 12 | 0.104 | 3.251 | 6 | 0.162 | . | 4.115 |
| 13 | 0.072 | 1.828 | 13 | 0.092 | 2.946 | . | 0.156 | 5/32 | 3.969 |
| 14 | 0.0641 | 1.628 | 14 | 0.08 | 2.642 | 7 | 0.144 | . | 3.664 |
| 15 | 0.0571 | 1.45 | 15 | 0.072 | 2.337 | . | 0.141 | 9/64 | 3.572 |
| 16 | 0.0508 | 1.291 | 16 | 0.064 | 2.032 | 8 | 0.128 | . | 3.263 |
| 17 | 0.0453 | 1.15 | 17 | 0.056 | 1.829 | . | 0.125 | 1/8 | 3.175 |
| 18 | 0.0403 | 1.024 | 18 | 0.048 | 1.626 | 9 | 0.114 | . | 2.906 |
| 19 | 0.0359 | 0.912 | 19 | 0.04 | 1.422 | . | 0.109 | 7/64 | 2.778 |
| 20 | 0.032 | 0.812 | 20 | 0.036 | 1.219 | 10 | 0.102 | . | 2.588 |
| 21 | 0.0285 | 0.723 | 21 | 0.032 | 1.016 | . | 0.094 | 3/32 | 2.381 |
| 22 | 0.0253 | 0.644 | 22 | 0.028 | 0.914 | 11 | 0.091 | . | 2.304 |
| 23 | 0.0226 | 0.573 | 23 | 0.024 | 0.813 | 12 | 0.081 | . | 2.052 |
| 24 | 0.0201 | 0.511 | 24 | 0.022 | 0.711 | . | 0.078 | 5/64 | 1.984 |
| 25 | 0.0179 | 0.455 | 25 | 0.02 | 0.61 | 13 | 0.072 | . | 1.828 |
| 26 | 0.0159 | 0.405 | 26 | 0.018 | 0.559 | 14 | 0.064 | . | 1.628 |
| 27 | 0.0142 | 0.361 | 27 | 0.0164 | 0.508 | 0.063 | 1/16 | 1.588 | |
| 28 | 0.0126 | 0.321 | 28 | 0.0148 | 0.4572 | 15 | 0.057 | . | 1.449 |
| 29 | 0.0113 | 0.286 | 29 | 0.0136 | 0.4166 | 16 | 0.051 | . | 1.291 |
| 30 | 0.01 | 0.255 | 30 | 0.0124 | 0.3759 | . | 0.047 | 3/64 | 1.191 |
| 31 | 0.00893 | 0.227 | 31 | 0.0116 | 0.3454 | 17 | 0.045 | . | 1.149 |
| 32 | 0.00795 | 0.202 | 32 | 0.0108 | 0.315 | 18 | 0.04 | . | 1.024 |
| 33 | 0.00708 | 0.18 | 33 | 0.01 | 0.2946 | 19 | 0.036 | . | 0.912 |
| 34 | 0.0063 | 0.16 | 34 | 0.0092 | 0.2743 | 20 | 0.032 | . | 0.812 |
| 35 | 0.00561 | 0.143 | 35 | 0.0084 | 0.254 | . | 0.031 | 1/2 | 0.795 |
| 36 | 0.005 | 0.127 | 36 | 0.0076 | 0.2337 | 21 | 0.028 | . | 0.723 |
| 37 | 0.00445 | 0.113 | 37 | 0.0068 | 0.2134 | 22 | 0.025 | . | 0.644 |
| 38 | 0.00397 | 0.101 | 38 | 0.006 | 0.193 | 23 | 0.023 | . | 0.573 |
| 39 | 0.00353 | 0.0897 | 39 | 0.0052 | 0.1727 | 24 | 0.02 | . | 0.511 |
| 40 | 0.00314 | 0.0799 | 40 | 0.0048 | 0.1524 | 25 | 0.018 | . | 0.455 |
| 41 | 0.0044 | 0.1321 | 26 | 0.016 | . | 0.405 | |||
| 42 | 0.004 | 0.1219 | . | 0.016 | 1/64 | 0.396 | |||
| 43 | 0.0036 | 0.1118 | 27 | 0.014 | . | 0.36 | |||
| 44 | 0.0032 | 0.1016 | 28 | 0.013 | . | 0.321 | |||
| 45 | 0.0028 | 0.0914 | 29 | 0.011 | . | 0.286 | |||
| 46 | 0.0024 | 0.0813 | 30 | 0.01 | . | 0.255 | |||
| 47 | 0.002 | 0.0711 | 31 | 0.0089 | . | 0.226 | |||
| 48 | 0.0016 | 0.061 | 32 | 0.008 | . | 0.2 | |||
| 49 | 0.0012 | 0.0508 | 33 | 0.0071 | 0.18 | ||||
| 50 | 0.001 | 0.0406 | 34 | 0.0063 | 0.16 | ||||
| 0.0305 | 35 | 0.0056 | 0.142 | ||||||
| 0.0254 | 36 | 0.005 | 0.13 | ||||||
| 37 | 0.0045 | 0.114 | |||||||
| 38 | 0.004 | 0.1 | |||||||
| 39 | 0.0035 | 0.089 | |||||||
| 40 | 0.0031 | 0.079 | |||||||
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