awg圆铜线线径对照表

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1、表一：AWG与mm对照表近似类比：(依次为1/3的关系)1AWG=7.5mm10AWG=2.5mm20AWG=0.8mm30AWG=0.20mm只用记住10号线规为2.5mmAWM=ApplianceWiringMaterialAWG=AmericanWringGauge.NO.28一般也寫成28AWG,芯線的構成常用二種方式:1.0.322/12.0.127/7.也寫成36AWG/7.不懂可以找michaelwrq:0756-8345225美制电线标准AWG与公制、英制单位对照在以太网和xDSL接入网设计中，经常会碰到诸如24AWG、26AWG等等表

2、示电缆直径的方法。其实AWG(AmericanWireGauge)是美制电线标准的简称，AWG值是导线厚度（以英寸计）的函数。下表是AWG与公制、英制单位的对照表。其中，4/0表示0000，3/0表示000，2/0表示00，1/0表示0。例如，常用的电话线直径为26AWG，约为0.4mm。AWG外径截面积(mm2)电阻值(W/km)AWG外径截面积(mm2)电阻值(W/km)公制mm英制inch公制mm英制inch4/011.680.46107.220.17220.6430.02530.324754.33/010.400.409685.010.2123

3、0.5740.02260.258848.52/09.270.364867.430.26240.5110.02010.204789.41/08.250.324953.490.33250.440.01790.162479.617.350.289342.410.42260.4040.01590.128114326.540.257633.620.53270.3610.01420.102112835.830.229426.670.66280.320.01260.080422745.190.204321.150.84290.2870.01130.064728954

4、.620.181916.771.06300.2540.01000.050736164.110.162013.301.33310.2260.00890.040132173.670.144310.551.68320.2030.00800.031658383.260.12858.372.11330.180.00710.025594492.910.11446.632.67340.160.00630.0201956102.590.10195.263.36350.1420.00560.01691,200112.300.09074.174.24360.1270.00

5、500.01271,530122.050.08083.3325.31370.1140.00450.00981,377131.820.07202.6276.69380.1020.00400.00812,400141.630.06412.0758.45390.0890.00350.00622,100151.450.05711.64610.6400.0790.00310.00494,080161.290.05081.31813.5410.0710.00280.00403,685171.150.04531.02616.3420.0640.00250.00326

6、,300181.020.04030.810721.4430.0560.00220.00255,544190.9120.03590.566726.9440.0510.00200.002010,200200.8130.03200.518933.9450.0460.00180.00169,180210.7240.02850.411642.7460.0410.00160.001316,300由表中归纳出的AWG与英寸的关系如下：AWG=Alginch-B其中，A＝-19.93156857，B＝9.73724。电缆的规格，通信电缆规格直径对照表价

7、格  发布日期：2010-05-05  浏览次数：639绝缘导线载流量估算电缆的规格，直径对照表铝芯绝缘导线载流量与截面的倍数关系导线截面(mm2)11．52．54610162535507095120载流是截面倍数9876543．532．5载流量(A)9142332486090100123150210238300估算口诀：二点五下乘以九，往上减一顺号走。三十五乘三点五，双双成组减点五。条件有变加折算，高温九折铜升级。穿管根数二三四，八七六折满载流。说明：(1)本节口诀对各种绝缘线(橡皮和塑料绝缘线)的载流量(安全电流)不是直接指出，而是“截面乘上一定的

8、倍数"来表示，通过心算而得。由表53可以看出：倍数随截面的增大而减小。“二点五下乘以九，往上减