AWG圓銅線線徑對(duì)照表

1、表一：AWG與mm對(duì)照表近似類比：(依次為1/3的關(guān)系) 1 AWG=7.5mm 10 AWG=2.5mm 20 AWG=0.8mm 30 AWG=0.20mm 只用記住10號(hào)線規(guī)為2.5mmAWM=Appliance Wiring Material AWG=American Wring Gauge. NO.28一般也寫成28AWG,芯線的構(gòu)成常用二種方式: 1. 0.322/1 2. 0.127/7.也寫成36AWG/7.不懂可以找michaelwrq:制電線標(biāo)準(zhǔn)AWG與公制、英制單位對(duì)照在以太網(wǎng)和xDSL接入網(wǎng)設(shè)計(jì)中，經(jīng)常會(huì)碰到諸如24AWG、26AWG等等表示

2、電纜直徑的方法。其實(shí)AWG(American Wire Gauge)是美制電線標(biāo)準(zhǔn)的簡(jiǎn)稱，AWG值是導(dǎo)線厚度（以英寸計(jì)）的函數(shù)。下表是AWG與公制、英制單位的對(duì)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，常用的電話線直徑為26AWG，約為0.4mm。 AWG外徑截面積 (mm2)電阻值 (W/km)AWG外徑截面積 (mm2)電阻值 (W/km)公制mm英制inch公制mm英制inch11.680.46107.220.170.6430.02530.324754.310.400.409685.010.210.5740.02260.258848.59.27

3、0.364867.430.260.5110.02010.204789.48.250.324953.490.330.440.01790.162479.67.350.289342.410.420.4040.01590.12811436.540.257633.620.530.3610.01420.10211285.830.229426.670.660.320.01260.08042275.190.204321.150.840.2870.01130.06472894.620.181916.771.060.2540.01000.05073614.110.162013.301.330.2260.00890

4、.04013213.670.144310.551.680.2030.00800.03165833.260.12858.372.110.180.00710.02559442.910.11446.632.670.160.00630.02019562.590.10195.263.360.1420.00560.01691,2002.300.09074.174.240.1270.00500.01271,5302.050.08083.3325.310.1140.00450.00981,3771.820.07202.6276.690.1020.00400.00812,4001.630.06412.0758.

5、450.0890.00350.00622,1001.450.05711.64610.60.0790.00310.00494,0801.290.05081.31813.50.0710.00280.00403,6851.150.04531.02616.30.0640.00250.00326,3001.020.04030.810721.40.0560.00220.00255,5440.9120.03590.566726.90.0510.00200.002010,2000.8130.03200.518933.90.0460.00180.00169,1800.7240.02850.411642.70.0

6、410.00160.001316,300由表中歸納出的AWG與英寸的關(guān)系如下： AWG = A lg inch - B其中，A-19.93156857，B9.73724。電纜的規(guī)格，通信電纜規(guī)格 直徑對(duì)照表價(jià)格   發(fā)布日期：2010-05-05   瀏覽次數(shù)：639 絕緣導(dǎo)線載流量估算 電纜的規(guī)格，直徑對(duì)照表 鋁芯絕緣導(dǎo)線載流量與截面的倍數(shù)關(guān)系 導(dǎo)線截面(mm 2 ) 1 15 25 4 6 10 16 25 35 50 70 95 120 載流是截面倍數(shù) 9 8 7 6 5 4 35 3 25 載流量(A) 9 14 23 32 48 60 90 1

7、00 123 150 210 238 300 估算口訣：二點(diǎn)五下乘以九，往上減一順號(hào)走。三十五乘三點(diǎn)五，雙雙成組減點(diǎn)五。條件有變加折算，高溫九折銅升級(jí)。穿管根數(shù)二三四，八七六折滿載流。 說明：(1)本節(jié)口訣對(duì)各種絕緣線(橡皮和塑料絕緣線)的載流量(安全電流)不是直接指出，而是“截面乘上一定的倍數(shù)"來表示，通過心算而得。由表5 3可以看出：倍數(shù)隨截面的增大而減小?！岸c(diǎn)五下乘以九，往上減一順號(hào)走"說的是25mm及以下的各種截面鋁芯絕緣線，其載流量約為截面數(shù)的9倍。如25mm導(dǎo)線，載流量為25×9225(A)。從4mm及以上導(dǎo)線的載流量和截面數(shù)的倍數(shù)關(guān)系是順著線號(hào)往上排，倍數(shù)逐次減l，即4×8、6×7、10×6、16×5、25×4。“三十五乘三點(diǎn)五，雙雙成組減點(diǎn)五"，說的是35mm"的導(dǎo)線載流量為截面數(shù)的35倍，即35×351225(A)。從50mm及以上的導(dǎo)線，其載流量與截面數(shù)之間的倍數(shù)關(guān)系變?yōu)閮蓚€(gè)兩個(gè)線號(hào)成一組，倍數(shù)依次減05。即50、70mm導(dǎo)線的載流量為截面數(shù)的3倍；95、120mm"導(dǎo)線載流量是其截面積數(shù)的25倍，依次類推。“條件有變加折算，高溫九折銅升級(jí)"。上述口訣是鋁芯絕緣線、明敷在環(huán)境溫度25的條件下而定的。若鋁芯絕緣