线规线径对照表,AWG对应平方毫米

主要

26AWG = 0.1281 平方毫米24AWG = 0.2047 平方毫米22AWG = 0.3247 平方毫米20AWG = 0.5189 平方毫米 近似 0.518AWG = 0.8107 平方毫米 近似 0.7516AWG = 1.318 平方毫米 近似 1.514AWG = 2.075 平方毫米12AWG = 3.332 平方毫米

10AWG到30AWG

AWG截面积(平方毫米)电阻值(Ohm/km)105.263.36114.174.24123.3325.31132.6276.69142.0758.45151.64610.6161.31813.5171.02616.3180.810721.4190.566726.9200.518933.9210.411642.7220.324754.3230.258866.8240.204789.4250.1624106260.1281143270.1021168280.0804227290.0647289300.0507361

1AWG至46AWG

AWG截面积(平方毫米)电阻值(Ohm/km)4/0107.220.173/085.010.212/067.430.261/053.490.33142.410.42233.620.53326.670.66421.150.84516.771.06613.31.33710.551.6888.372.1196.632.67105.263.36114.174.24123.3325.31132.6276.69142.0758.45151.64610.6161.31813.5171.02616.3180.810721.4190.566726.9200.518933.9210.411642.7220.324754.3230.258866.8240.204789.4250.1624106260.1281143270.1021168280.0804227290.0647289300.0507361310.0401430320.0316583330.0255944340.0201956350.01691,200360.01271,530370.00981,788380.00812,400390.00622,740400.00494,080410.0044,264420.00326,300430.00256,936440.0029,180450.001610,200460.001316,300

更详细一些

注解：AWG(American Wire Gauge)是美制电线标准的简称。发音习惯上以Gauge的发音[geidg]作为AWG整个简写词组的发音。美国区分导线直径的标准，又称B&S线程（即Brown & Sharps线程）。铜线直径通常以AWG（美国导线规格）作为单位进行测量。AWG值是导线线径（以英寸计）的函数。AWG前面的数值（如24AWG、26AWG）表示导线形成最后直径前所要经过的孔的数量，数值越大，导线经过的孔就越多，导线的直径也就越小。粗导线具有更好的物理强度和更低的电阻，但是导线越粗，制作电缆需要的铜就越多，这回导致电缆更沉、更难以安装、价格也更贵。电缆设计的挑战在于使用尽可能小直径的导线（减小成本和安装复杂性），而同时保证在必要电压和频率之下实现导线的最大容量。中国线规美国线规截面积阻值载流量CWGAWG正常最大线径mm线号线径mm线径inchmm2Ω/kmAA--- 4/0 *11.6840.4600107.22000.17423.2482.6--- 3/0 *10.4040.409685.01000.21335.5382.69.00 2/0 *9.2660.364867.43000.26266.2303.58.00 1/0 *8.2520.324953.49000.33211.1240.77.10 17.3480.289342.41000.42167.4190.96.30 26.5430.257633.62000.53132.7151.35.60 35.8270.229426.67000.66105.2120.05.00 45.1890.204321.15000.8483.595.24.50 54.6200.181916.77001.0666.275.54.00 64.1150.162013.30001.3352.559.93.55 73.6650.144310.55001.6841.647.53.15 83.2640.12858.37002.1133.037.72.80 92.9060.11446.63002.6726.229.82.50 102.5880.10195.26003.3620.823.72.24 112.3040.09074.17004.2416.518.82.00 122.0520.08083.33205.3113.114.91.80 131.8290.07202.62706.6910.411.81.60 141.6280.06412.07508.458.29.41.40 151.4500.05711.646010.66.57.41.25 161.2900.05081.318013.55.25.91.12 171.1510.04531.026016.34.14.71.00 181.0240.04030.810721.43.23.70.90 190.9120.03590.566726.92.62.90.80 200.8130.03200.518933.92.02.30.71 210.7240.02850.411642.71.61.90.63 220.6430.02530.324748.51.2801.4600.56 230.5740.02260.258854.31.0221.1650.50 240.5110.02010.204779.60.8080.9210.45 250.4550.01790.162489.40.6410.7310.40 260.4040.01590.12811280.5060.5770.355 270.3610.01420.10211430.4030.4600.315 280.3200.01260.08042270.3180.3620.28 290.2870.01130.06472890.2550.2910.25 300.2540.01000.05073210.2000.2280.244 310.2260.00890.04013670.1580.1810.20 320.2030.00800.03165830.1280.1460.18 330.1800.00710.02559440.1010.1150.16 340.1600.00630.02019560.0790.0910.14 350.1420.00560.016912000.0630.0720.125 360.1270.00500.012715300.0500.0570.112 370.1140.00450.009813770.0410.046--- 380.1020.0040.008124000.0320.036--- 390.0890.00350.006221000.0250.028--- 400.0790.00310.004940800.0190.022--- 410.0710.00280.00436850.0160.018--- 420.0640.00250.003263000.0130.014--- 430.0560.00220.002555440.0100.011--- 440.0510.0020.002102000.0080.009--- 450.0460.00180.001691800.0060.007--- 460.0410.00160.0013163000.0050.006 * ：4/0表示 0000，3/0表示 000，2/0表示 00，1/0表示 0 1 ：由表上中的线径均指线的外径，单位换算：1 inch = 25.4 mm ；1 inch = 1000 mil(密尔) 3 ：I正常(A) ＝ D外径(mil)2／500 ； I最大(A) ＝ D外径(mil)2／438.489 2 ：由表上归纳出AWG与英寸的关系如下：AWG = -19.93156857*lg线径inch - 9.73724

百度百科AWG线径对照表

百度百科 AWG https://baike.baidu.com/item/AWG/3692734

一些参考搜集

电阻率-百度百科: https://baike.baidu.com/item/%E7%94%B5%E9%98%BB%E7%8E%87/786893