AWG号与导体直径及截面积的对应关系

AWG号与导体直径及截面积的对应关系
AWG号与导体直径及截面积的对应关系

D o c u m e n t W a s D o w n l o a d e d B y R i c e , S h i S

H

I M I S H

E

N G F o r U s e B y K U A N T E C H C O

L T D 12039 : 8/1/2007 - 8:35 P M UL COPYRIGHTED MATERIAL –

NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

DISTRIBUTION WITHOUT PERMISSION FROM UL 5Conductor 5.1General

5.1.1A conductor consisting of a single wire is designated as a solid conductor,while one consisting of a number of individual wires is designated as a stranded conductor.The American Wire Gauge (AWG)numbers,the kcmil (thousands of circular mils)sizes,and the square-millimeter sizes each signify a de?nite nominal total cross-sectional area (see Table 5.1)independent of the conductor material.The individual wires used in making up a stranded conductor are not required to correspond to any particular AWG or other standard gauge size.

Table 5.1

Conductor dimensions

Table 5.1revised April 24,2006

Size of conductor,Diameter of solid conductor

Cross-sectional area of stranded conductor Nominal,Minimum,Nominal,Minimum,AWG Mils (mm)Mils (mm)Cmils (mm 2)Cmils (mm 2)500.990.02510.980.0250.9800.0004970.9600.00048649 1.110.0282 1.100.028 1.230.000624 1.210.00061348 1.240.0315 1.230.031 1.540.000768 1.510.00076547 1.400.0356 1.390.035 1.960.000993 1.920.00097346 1.570.0399 1.550.039 2.460.00125 2.410.0012245 1.760.0447 1.740.044 3.100.00157 3.040.0015444 2.00.051 1.980.050 4.000.00203 3.920.0019843 2.20.056 2.180.055 4.840.00245 4.740.0024042 2.50.064 2.480.063 6.250.00317 6.130.00311541 2.80.071 2.770.0707.840.003977.680.0038940 3.10.079 3.070.0789.610.004879.420.0047739 3.50.089 3.470.08812.20.0062111.90.0060338 4.00.102 3.960.10116.00.0081115.70.0079637 4.50.114 4.460.11320.20.010319.80.010036 5.00.127 4.950.12625.00.012724.50.012435 5.60.142 5.540.14131.40.015930.80.015634 6.30.160 6.240.15839.70.02038.90.0197337.10.1807.030.17950.40.025549.40.0250328.00.2037.920.20164.00.032462.70.0318318.90.2268.810.22479.20.040177.60.03933010.00.2549.90.2511000.0507980.04972911.30.28711.20.2841280.06471250.06332812.60.32012.50.3181590.08041560.07902714.20.36114.10.3582020.1021980.1002615.90.40415.70.3992530.1282480.1262517.9

0.455

17.7

0.450

320

0.162

314

0.159

2420.10.51119.90.5064040.2053960.2012322.60.57422.40.5695110.2595010.2542225.30.64325.00.6356400.324627

0.3182128.50.72428.20.7168120.4127960.4042032.00.81331.70.80510200.51910000.5091935.90.91235.60.90412900.65312640.6411840.3 1.0240.0 1.01616200.82315880.80717

45.3 1.1544.9 1.1402050 1.042009 1.02APRIL 24,2006

APPLIANCE WIRING MATERIAL -UL 75812Table 5.1Continued on Next Page

D o c u m e n t W a s D o w n l o a d e d B y R i c e , S h i S

H

I M I S H

E

N G F o r U s e B y K U A N T E C H C O

L T D 12039 : 8/1/2007 - 8:35 P M UL COPYRIGHTED MATERIAL –

NOT AUTHORIZED FOR FURTHER REPRODUCTION OR

DISTRIBUTION WITHOUT PERMISSION FROM UL

Table 5.1Continued

Size of conductor,Diameter of solid conductor Cross-sectional area of stranded conductor

Nominal,Minimum,Nominal,Minimum,

AWG Mils (mm)Mils (mm)Cmils (mm 2)Cmils (mm 2)1650.8 1.2950.3 1.2782580

1.312528 1.281557.1 1.4556.5 1.4353260 1.653195 1.621464.1 1.6363.5 1.6134110

2.084028 2.041372.0 1.8371 1.805180 2.635076 2.581280.8 2.0580 2.036530

3.316399 3.241190.7 2.3090 2.298230

4.178065 4.0910101.9 2.588101 2.5710380

5.26110172 5.169114.4 2.906113 2.8713090

6.63112828 6.508128.5 3.264127 3.23165108.367161808.207144.3 3.665143 3.632082010.552040410.346162.0 4.115160 4.062624013.302571513.035181.9 4.620180 4.573309016.773242816.434204.3 5.189202 5.134174021.154090520.733229.4 5.827227 5.775262026.675156826.14225

7.6 6.543255 6.486636033.626503332.951289.37.3482867.268369042.418201641.561/0324.9

8.2523228.1810560053.4910348852.422/0364.8

9.2263619.1713310067.4313043866.083/0409.610.4040610.3116780085.0116444483.314/0460.011.6845511.56211600107.2207368105.1250––––250127245124.1300––––300152294149.0350––––350177343173.8400––––400203392198.6450––––450228441223.5500––––500253490248.3550––––550279539273.1600––––600304588297.9650––––650329637322.8700––––700355686347.6750––––750380735372.4

800––––800405784397.2900––––900456882446.91000––––1000507980496.61100––––11005571078546.21200––––12006081176595.91250––––12506331225620.71300––––13006591274645.51400––––14007091372695.21500––––15007601470744.91600––––16008111568794.51700––––17008611666844.21750–

1750

887

1715

869.0

1800––––18009121764893.81900––––1900963

1862943.52000

––––200010101960993.1APRIL 24,2006APPLIANCE WIRING MATERIAL -UL 75813

AWG电流线径对照表

线规 SWG BWG BG AWG 号码 英寸 毫米 英寸 毫米 英寸 毫米 英寸 毫米 7/0 6/0 5/0 4/0 3/0 2/0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 0.500 0.464 0.432 0.400 0.372 0.348 0.324 0.300 0.276 0.252 0.232 0.212 0.192 0.176 0.160 0.144 0.128 0.116 0.104 0.092 0.080 0.072 0.064 0.056 0.048 0.040 0.036 0.032 0.0280 0.0240 0.0220 0.0200 0.0180 12.700 11.786 10.973 10.160 9.449 8.839 8.230 7.620 7.010 6.401 5.893 5.385 4.877 4.470 4.046 3.658 3.251 2.946 2.642 2.337 2.032 1.829 1.626 1.422 1.219 1.016 0.914 0.813 0.711 0.610 0.559 0.508 0.457 -- -- 0.500 0.454 0.425 0.330 0.340 0.300 0.284 0.259 0.238 0.220 0.203 0.180 0.165 0.148 0.134 0.120 0.109 0.095 0.083 0.072 0.065 0.058 0.049 0.042 0.035 0.032 0.028 0.025 0.022 0.020 0.018 -- -- 12.700 11.532 10.795 9.652 8.639 7.620 7.214 6.579 6.045 5.588 5.156 4.572 4.191 3.759 3.404 3.048 2.769 2.413 2.108 1.829 1.651 1.473 1.245 1.067 0.839 0.813 0.711 0.635 0.559 0.508 0.457 0.6666 0.6250 0.5883 0.5416 0.5000 0.1152 0.3954 0.3532 0.3147 0.2804 0.2500 0.2225 0.1981 0.1764 0.1570 0.1398 0.1250 0.1313 0.0991 0.0882 0.0785 0.0699 0.0625 0.0556 0.0495 0.0440 0.0392 0.0349 0.031250.027820.024760.022040.0196116.932 15.875 14.943 13.757 12.700 11.308 10.069 8.971 7.993 7.122 6.350 5.652 5.032 4.481 3.988 3.551 3.175 2.827 2.517 2.240 1.994 1.775 1.588 1.412 1.257 1.118 0.996 0.887 0.794 0.707 0.629 0.560 0.498 -- 0.5800 0.5165 0.4600 0.4096 0.3648 0.3249 0.2893 0.2576 0.2294 0.2043 0.1819 0.1620 0.1443 0.1285 0.1144 0.1019 0.0907 0。0808 0.0720 0.0648 0.0571 0.0508 0.0453 0.0403 0.0359 0.0320 0.0285 0.025350.020100.017900.015940.01420 -- 14.732 13.119 11.684 10.404 9.266 8.252 7.348 6.544 5.827 5.189 4.621 4.115 3.665 3.264 2.906 2.588 2.305 2.053 1.828 1.628 1.450 1.291 1.150 1.024 0.912 0.812 0.723 0.644 0.573 0.511 0.455 0.405 常用线规号码与线径对照表

AWG线规与公制、英制单位对照

AWG线规与公制、英制单位对照 AWG(American Wire Gauge),也被称作布朗/夏普线规(Brown/Sharpe wire gauge),在美国,从1857年开始就被作为一种标准的线规使用,它广泛应用于圆柱体,立方体,有色金属及电力控制线的直径测量,它的截面积决定了导体的载流能力。 AWG 直径截面积电阻值 60/75/90下的载流能力英制inch 公制 mm kcmil mm2Ω/km Ω/kFT 0000 (4/0) 0.46 11.684 212 107 0.1608 0.04901 195 / 230 / 260 000 (3/0) 0.4096 10.404 168 85 0.2028 0.0618 165 / 200 / 225 00 (2/0) 0.3648 9.266 133 67.4 0.2557 0.07793 145 / 175 / 195 0 (1/0) 0.3249 8.252 106 53.5 0.3224 0.09827 125 / 150 / 170 1 0.2893 7.348 83.7 42.4 0.4066 0.1239 110 / 130 / 150 2 0.2576 6.544 66.4 33.6 0.5127 0.156 3 95 / 115 / 130 3 0.229 4 5.827 52.6 26.7 0.646 5 0.197 85 / 100 / 110 4 0.2043 5.189 41.7 21.2 0.8152 0.248 5 70 / 85 / 95 5 0.1819 4.621 33.1 16.8 1.028 0.3133 6 0.162 4.115 26.3 13.3 1.296 0.3951 55 / 65 / 75 7 0.1443 3.665 20.8 10.5 1.634 0.4982 8 0.1285 3.264 16.5 8.37 2.061 0.6282 40 / 50 / 55 9 0.1144 2.906 13.1 6.63 2.599 0.7921 10 0.1019 2.588 10.4 5.26 3.277 0.9989 30 / 35 / 40 11 0.0907 2.305 8.23 4.17 4.132 1.26 12 0.0808 2.053 6.53 3.31 5.211 1.588 25 / 25 / 30 (20) 13 0.072 1.828 5.18 2.62 6.571 2.003 14 0.0641 1.628 4.11 2.08 8.286 2.525 20 / 20 / 25 (15) 15 0.0571 1.45 3.26 1.65 10.45 3.184 16 0.0508 1.291 2.58 1.31 13.17 4.016 —/ —/ 18 (10) 17 0.0453 1.15 2.05 1.04 16.61 5.064 18 0.0403 1.024 1.62 0.823 20.95 6.385 —/ —/ 14 (7) 19 0.0359 0.912 1.29 0.653 26.42 8.051 20 0.032 0.812 1.02 0.518 33.31 10.15 21 0.0285 0.723 0.81 0.41 42 12.8 22 0.0253 0.644 0.642 0.326 52.96 16.14

常用线规号码与线径对照表(SWG、BG、BWG、AWG)

常用线规号码与线径对照表线规号码7/06/05/04/03/02/26英寸0.5 000.4 640.4 320.4 000.3 720.3 480.3 240.3 000.2 760.2 520.2 320.2 120.1 920.1 760.1 600.1 440.1 280.1 160.1 040.0

800.0 720.0 640.0 560.0 480.0 400.0 360.0 320.0 2800.0 2400.0 2200.0 2000.0180SWG毫米12.7 0011.7 8610.9 7310.1 609.4 498.8 398.2 307.6

106.4 015.8 935.3 854.8 774.4 704.0 463.6 583.2 512.9 462.6 422.3 372.0 321.8 291.6 261.4 221.2 191.0 160.9 140.8 130.7

100.5 590.5 080.457BWG英寸---- 0.5 000.4 540.4 250.3 300.3 400.3 000.2 840.2 590.2 380.2 200.2 030.1 800.1 650.1 480.1 340.1 200.1

950.0 830.0 720.0 650.0 580.0 490.0 420.0 350.0 320.0 280.0 250.0 220.0 200.018毫米---- 12.7 0011.5 3210.7 959.6 528.6 397.6 207.2

796.0 455.5 885.1 564.5 724.1 913.7 593.4 043.0 482.7 692.4 132.1 081.8 291.6 511.4 731.2 451.0 670.8 390.8 130.7 110.6

AWG线规换算表

以太网和xDSL接入网设计中,如24AWG、26AWG等表示电缆直径。AWG(American Wire Gauge)是美制电线标准的简称,AWG值是导线厚度(英寸计)的函数。AWG 与公制、英制对照表。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。由表中归纳出的AWG 与英寸的关系如下: AWG = A log 10 inch - B其中,A=-19.93156857,B=9.73724。 AWG 外径 截面积 (mm2) 电阻值 ( /km) AWG 外径 截面积 (mm2) 电阻值 ( /km) 公制 mm 英制 inch 公制 mm 英制 inch 4/011.680.46107.220.17220.6430.02530.324754.3 3/010.400.409685.010.21230.5740.02260.258848.5 2/09.270.364867.430.26240.5110.02010.204789.4 1/08.250.324953.490.33250.440.01790.162479.6 17.350.289342.410.42260.4040.01590.1281143 2 6.540.257633.620.53270.3610.01420.1021128 3 5.830.229426.670.66280.320.01260.0804227 4 5.190.204321.150.84290.2870.01130.0647289 5 4.620.181916.77 1.06300.2540.01000.0507361 6 4.110.162013.30 1.33310.2260.00890.0401321 7 3.670.144310.55 1.68320.2030.00800.0316583 8 3.260.12858.37 2.11330.180.00710.0255944 9 2.910.1144 6.63 2.67340.160.00630.0201956 10 2.590.1019 5.26 3.36350.1420.00560.01691,200 11 2.300.0907 4.17 4.24360.1270.00500.01271,530 12 2.050.0808 3.332 5.31370.1140.00450.00981,377 13 1.820.0720 2.627 6.69380.1020.00400.00812,400 14 1.630.0641 2.0758.45390.0890.00350.00622,100 15 1.450.0571 1.64610.6400.0790.00310.00494,080 16 1.290.0508 1.31813.5410.0710.00280.00403,685 17 1.150.0453 1.02616.3420.0640.00250.00326,300 18 1.020.04030.810721.4430.0560.00220.00255,544 190.9120.03590.566726.9440.0510.00200.002010,200 200.8130.03200.518933.9450.0460.00180.00169,180

常用AWG线规号码与线径对照表1

线规SWG BWG BG AWG 号码英寸毫米英寸毫米英寸毫米英寸毫米 7/0 6/0 5/0 4/0 3/0 2/0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 0.500 0.464 0.432 0.400 0.372 0.348 0.324 0.300 0.276 0.252 0.232 0.212 0.192 0.176 0.160 0.144 0.128 0.116 0.104 0.092 0.080 0.072 0.064 0.056 0.048 0.040 0.036 0.032 0.0280 0.0240 0.0220 0.0200 0.0180 12.700 11.786 10.973 10.160 9.449 8.839 8.230 7.620 7.010 6.401 5.893 5.385 4.877 4.470 4.046 3.658 3.251 2.946 2.642 2.337 2.032 1.829 1.626 1.422 1.219 1.016 0.914 0.813 0.711 0.610 0.559 0.508 0.457 -- -- 0.500 0.454 0.425 0.330 0.340 0.300 0.284 0.259 0.238 0.220 0.203 0.180 0.165 0.148 0.134 0.120 0.109 0.095 0.083 0.072 0.065 0.058 0.049 0.042 0.035 0.032 0.028 0.025 0.022 0.020 0.018 -- -- 12.700 11.532 10.795 9.652 8.639 7.620 7.214 6.579 6.045 5.588 5.156 4.572 4.191 3.759 3.404 3.048 2.769 2.413 2.108 1.829 1.651 1.473 1.245 1.067 0.839 0.813 0.711 0.635 0.559 0.508 0.457 0.6666 0.6250 0.5883 0.5416 0.5000 0.1152 0.3954 0.3532 0.3147 0.2804 0.2500 0.2225 0.1981 0.1764 0.1570 0.1398 0.1250 0.1313 0.0991 0.0882 0.0785 0.0699 0.0625 0.0556 0.0495 0.0440 0.0392 0.0349 0.03125 0.02782 0.02476 0.02204 0.01961 16.932 15.875 14.943 13.757 12.700 11.308 10.069 8.971 7.993 7.122 6.350 5.652 5.032 4.481 3.988 3.551 3.175 2.827 2.517 2.240 1.994 1.775 1.588 1.412 1.257 1.118 0.996 0.887 0.794 0.707 0.629 0.560 0.498 -- 0.5800 0.5165 0.4600 0.4096 0.3648 0.3249 0.2893 0.2576 0.2294 0.2043 0.1819 0.1620 0.1443 0.1285 0.1144 0.1019 0.0907 0。0808 0.0720 0.0648 0.0571 0.0508 0.0453 0.0403 0.0359 0.0320 0.0285 0.02535 0.02010 0.01790 0.01594 0.01420 -- 14.732 13.119 11.684 10.404 9.266 8.252 7.348 6.544 5.827 5.189 4.621 4.115 3.665 3.264 2.906 2.588 2.305 2.053 1.828 1.628 1.450 1.291 1.150 1.024 0.912 0.812 0.723 0.644 0.573 0.511 0.455 0.405常用线规号码与线径对照表

AWG线规—导线外径(MM)与电流(A)对照

导线线径与电流规格表 导线的阻抗与其长度成正比,与其线径成反比。请在使用电源时,特别注意输入与输出导线的线材与线径问题。以防止电流过大使导线过热而造成事故。 常用的从1平方毫米开始: 1、1.5、2.5、4、6、10、16、25、35、50、70、95、120、150、185、240平方毫米;不常用的有:0.5、0.75、300、400、500平方毫米等。 下面是铜线在不同温度下的线径所能承受的最大电流表格。 铜线温度(摄氏度) 60℃ 75℃ 85℃ 90℃ 线 径 (大 约 值) (平方毫米) 电流(A) 2.5 20 20 25 25 4.0 25 25 30 30 6.0 30 35 40 40 8.0 40 50 55 55 14 55 65 70 75 22 70 85 95 95 30 85 100 100 110 38 95 115 125 130 50 110 130 145 150 60 125 150 165 170 70 145 175 190 195 80 165 200 215 225 100 195 230 250 260 导线线径一般按如下公式计算:铜线: S= IL / 54.4*U` 铝线: S= IL / 34*U`

式中:I——导线中通过的最大电流(A) L——导线的长度(m) U`——充许的电源降(V) S——导线的截面积(mm2) 说明: 1、U`电压降可由整个系统中所用的设备(如探测器)范围分给系统供电用的电源电压额定值综合起来考虑选用。 2、计算出来的截面积往上靠。 美规:AWG与mm对照表 近似类比:(依次为1/3的关系) 1 AWG=7.5mm 10 AWG=2.5mm

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