美制AWG线规标准阐述.doc

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1、美制AWG线规标准阐述概述：       美国线规（英文是Americanwiregauge，缩写为AWG），是一种区分导线直径的标准，又被称为Brown&Sharpe线规。这种标准化线规系统于1857年起在美国开始使用       钢铁工业使用不同的线规，所以下述内容并不适用于钢丝。       导线的直径与导线承载电流的能力有很大关系。线规数字越小，表示线材直径越粗，所能承载的电流就越大；反之，线规数字越大，表示线材直径越细，所能承载的电流就越小。       AWG表适用于单根、实心、圆形

2、的导线。双绞线的AWG值由所有导线的总横截面积决定，并且由于双绞线之间总是有一些空隙，导致相同的AWG值双绞线的直径总是略大于单根导线的直径。     AWG数值应作为基本数值标注于数据线上。例如，组网使用的五类非屏蔽双绞线一般使用AWG24的线材，而SATA线一般是AWG26线材。计算公式：定义直径0.005英寸为AWG36，直径0.46英寸为AWG0000。从AWG36至AWG0000等比共计40个值。可以根据如下公式计算出每种AWG值的实际直径：或者n代表AWG的值。横截面积为：从直径计算

3、AWG值可以通过如下公式：AWG00，AWG000，AWG0000的n分别使用-1，-2，-3。线规标准一览表AWG直径面积铜阻抗(inch)(mm)(kcmil)(mm²)(Ω/km)(Ω/kFT)0000(4/0)0.4611.6842121070.16080.04901000(3/0)0.409610.404168850.20280.061800(2/0)0.36489.26613367.40.25570.077930(1/0)0.32498.25210653.50.32240.09827

4、10.28937.34883.742.40.40660.123920.25766.54466.433.60.51270.156330.22945.82752.626.70.64650.19740.20435.18941.721.20.81520.248550.18194.62133.116.81.0280.313360.1624.11526.313.31.2960.395170.14433.66520.810.51.6340.498280.12853.26416.58.372.0610.6282

5、90.11442.90613.16.632.5990.7921100.10192.58810.45.263.2770.9989110.09072.3058.234.174.1321.26120.08082.0536.533.315.2111.588130.0721.8285.182.626.5712.003140.06411.6284.112.088.2862.525150.05711.453.261.6510.453.184160.05081.2912.581.3113.174.016170.

6、04531.152.051.0416.615.064180.04031.0241.620.82320.956.385190.03590.9121.290.65326.428.051200.0320.8121.020.51833.3110.15210.02850.7230.810.414212.8220.02530.6440.6420.32652.9616.14230.02260.5730.5090.25866.7920.36240.02010.5110.4040.20584.2225.67250

7、.01790.4550.320.162106.232.37260.01590.4050.2540.129133.940.81270.01420.3610.2020.102168.951.47280.01260.3210.160.081212.964.9290.01130.2860.1270.0642268.581.84300.010.2550.1010.0509338.6103.2310.008930.2270.07970.0404426.9130.1320.007950.2020.06320.

8、032538.3164.1330.007080.180.05010.0254678.8206.9340.00630.160.03980.0201856260.9350.005610.1430.03150.0161079329360.0050.1270.0250.01271361414.8370.004450.1130.01980.011716523.1380.003970.1010.01570.007972164659.6390.003530.08970.01250.006322729831.8