二）英国标准线规（BWG)号数与线径的关系线规号码0123456710111213in.0.3240.3000.2760.2520.2320.2120.1920.1760.1600.1440.1280.1160.1040.092mm8.2307.0207.0106.4015.35.3854.8774.4704.03.6583.2512.9462.22.337线规号码1415161718192021222324252627in.0.0800.0720.00.0560.0480.0400.0360.0320.0280.0240.0220.0200.0180.01mm2.0321.8291.6261.4221.2191.0160.9140.8130.7110.6100.5590.5080.4570.417线规号码2829303132333435363738394041AWG为美国线规，BWG为伯明翰线规 SWG为英国标准线规(下表为各种线规对应的毫米数)线规号000000012345671011121314151617AWG对应——————11.6810.49.2668.2527.3486.5445.8275.14.6214.1153.6653.22.9062.5882.3052.0531.8281.6281.451.2911.15BWG对应——————11.5310..6528.6367.627.2146.5796.0455.5885.51.5724.1913.7593.4043.0482.7692.4132.1081.8291.6511.473SWG对应12.711.7910.9710.169.4498.8398.237.627.016.4015.35.3854.8774.474.03.6583.2512.9462.22.3372.0321.8291.6261.422附表2 常用线
线规号345线规号6710ll121314151617181920SWG英国线规inO．2520.2320.212SWG英国线规in0.192O．176O．1600.144O．128O．116O．1040.0920.080.0720.00.0560.0480.040.036181.0241.2451.219190.91161.0671.016200.81180.80.9144210.72290.81280.8123220.390.71120.7112230.57330.6350.6096240.51060.55880.5588250.45470.5080.508260.40490.45720.4572270.36060.400.4166280.32110.35560.3759290.28590.33020.3454300.25480.30480.3353310.22680.2540.2946320.20190.22860.2743330.17980.20320.254340.16010.17780.2237350.14260.1270.2143360.1270.10160.193370.1131----0.1727380.1007----0.1524390.069----0.1321400.07985----0.1219410.07112----0.1118420.06335----0.10130.051----0.09144440.05024----0.08128450.04473----0.07112460.03984----0.060970.03547----0.0508480.03159----0.040490.02813----0.03048500.02505----0.02542lO．032220.028230.024240.022250.0226O．018270.01280.0148290.0136300.0124310.0116320.0108330.01340.0092350.0084360.0076in.0.01480.01360.01240.01160.01080.01000.00920.00840.00760.00680.00600.00520.00480.0044mm0.3760.3450.3150.2950.2740.2540.2340.2130.1930.1730.1520.1320.1220.112附表2 常用线规号与公称直径对照表G英国线规mm6.4015.35.385G英国线规mm4.8774.474.03.6583.2512.9462.22.3372.0321.8291.6261.4221.2191.0160.914BWG伯明翰线规inmm0.2596.580.2386.050.225.59BWG伯明翰线规inmm0.2035.16O．1804.57O．1654.190.1483.76O．1343.4O．1203.05O．1092.770.0952.410.0832.110.0721.830.0651.650.0581.470.0491.240.0421.070.0350.AWG美国线规inmm0.22945.830.20435.190.18194.62AWG美国线规inmmO．16204.110.14433.670.12853.260.11442.910.10192.590.090742.30.080812.050.07196l-830.0081.630.057071.450.050821.290.045261.150.04031.020.0350.9l0.031960.8120.8130.7110.61O．559O．5080.4570.4166O．37590.34540.3150.29460.27430.254O．23370.0320.0280.025O．0220.020.0180.0160.0140.0130.0120.010.0090.0080.007O．8l0.71O．0.560.5l0.460.410.360.330.30.250.23O．20O．180.130.1O．21340.005O．1930O．0040.028460.025350.022570.0201O．017900.015940.01420.0120.011260.010030.0030.007950.00708O．0063040.005620.0050.7230.4O．5730.5110.4550.405O．361O．321O．2860.2550.2270.2020.180.16O．1430.127
