AWG_标准线径规格对照表

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1、AWG标准线径规格对照表业界线径的粗细是以号数(xxAWG)来表示的，数目越小表示线径愈粗，所能承载的电流就越大，反之则线径越细，耐电流量越小。例如说：12号的耐电流量是20安培，最大承受功率是2200瓦，而18号线的耐电流量则是7安培，最大承受功率是770瓦。为什么AWG号数越小直径反而越大？如这么解释你就会明白，固定的截面积下能塞相同的AWG线的数量，如11#AWG号数可塞11根而15#号数可塞15根，自然的15#AWG的单位线径就较小。美规线径值单一导体或群导体【各正值或负值】的线径值(Gauge)是以圆或平2方厘米(mm)量测而得，平方厘米不常用在量测线径值，由於牵涉到不正确，因

2、一般大部份的导体形体，包含长方形及其他怪异形状。因此我们拿全部的量测以圆平方厘米(c/m)为参考值群导体计算的方法或公式:加上单一导体的线径值总和，并比较上表求得。如果值落入两者之间，取比较少的值。40股群导体的线径值为：如每一芯为24Guage=40x405c/m=16，200c/m=9AWG(得出值落入12960c/m和16440c/m之间)快速求得线径值的方法：两条(AWG)相加时，该单一线径值减3.ex.2x18AWG=(18-3=)15AWG三条(AWG)相加时，该单一线径值減5.ex.3x24AWG=(24-5=)19AWG四条(AWG)相加时，该单一线径值減6.ex.4x1

3、0AWG=(10-6=)04AWGAWG标准线径规格对照表AWGNumber直径[Inch]直径[mm]面积[mm2]Resistance[Ohm/m]4/0=00000.46011.71070.0001613/0=0000.41010.485.00.0002032/0=000.3659.2667.40.0002561/0=00.3258.2553.50.00032310.2897.3542.40.00040720.2586.5433.60.00051330.2295.8326.70.00064740.2045.1921.10.00081550.1824.6216.80.0010360.

4、1624.1113.30.0013070.1443.6610.50.0016380.1283.268.360.0020690.1142.916.630.00260100.1022.595.260.00328110.09072.304.170.00413120.08082.053.310.00521130.07201.832.620.00657140.06411.632.080.00829150.05711.451.650.0104160.05081.291.310.0132170.04531.151.040.0166180.04031.020.8230.0210190.03590.912

5、0.6530.0264200.03200.8120.5180.0333210.02850.7230.4100.0420220.02530.6440.3260.0530230.02260.5730.2580.0668240.02010.5110.2050.0842250.01790.4550.1620.106260.01590.4050.1290.134270.01420.3610.1020.169280.01260.3210.08100.213290.01130.2860.06420.268300.01000.2550.05090.339310.008930.2270.04040.427

6、320.007950.2020.03200.538330.007080.1800.02540.679340.006310.1600.02010.856350.005620.1430.01601.08360.005000.1270.01271.36370.004450.1130.01001.72380.003970.1010.007972.16390.003530.08970.006322.73400.003140.07990.005013.44