电阻与线径的关系[电阻单位为20℃(68℉)下每两英尺欧姆数]
AWG 线号
|
直径
|
K††型 CHROMEGA ALOMEGA™
|
J型 铁/ 康铜
|
T型 铜/ 康铜
|
E型 CHROMEGA 康铜
|
S型 Pt/ Pt10%Rh
|
R型 Pt/ Pt13%Rh
|
RX/SX T型 铜合金 11**
|
C†型 W5%Re/ W26%Re
|
CX型 合金405/ 合金426
|
G†型 W/ W26%Re
|
D†型 W3%Re W25%Re
|
BX型 铜/ 铜*
|
英寸
|
mm
|
6
|
0.162
|
4.11
|
0.023
|
0.014
|
0.012
|
0.027
|
0.007
|
0.007
|
0.003
|
0.009
|
0.014
|
0.008
|
0.009
|
0.000790
|
8
|
0.128
|
3.25
|
0.037
|
0.022
|
0.019
|
0.044
|
0.011
|
0.011
|
0.004
|
0.015
|
0.023
|
0.012
|
0.015
|
0.001256
|
10
|
0.102
|
2.29
|
0.058
|
0.034
|
0.029
|
0.069
|
0.018
|
0.018
|
0.007
|
0.023
|
0.037
|
0.020
|
0.022
|
0.001998
|
12
|
0.081
|
2.06
|
0.091
|
0.054
|
0.046
|
0.109
|
0.028
|
0.29
|
0.011
|
0.037
|
0.058
|
0.031
|
0.035
|
0.00318
|
14
|
0.064
|
1.63
|
0.146
|
0.087
|
0.074
|
0.175
|
0.045
|
0.047
|
0.018
|
0.058
|
0.093
|
0.049
|
0.055
|
0.00505
|
16
|
0.051
|
1.30
|
0.230
|
0.137
|
0.117
|
0.276
|
0.071
|
0.073
|
0.028
|
0.092
|
0.146
|
0.078
|
0.088
|
0.00803
|
18
|
0.040
|
1.02
|
0.374
|
0.222
|
0.190
|
0.448
|
0.116
|
0.119
|
0.045
|
0.148
|
0.238
|
0.126
|
0.138
|
0.01277
|
20
|
0.032
|
0.81
|
0.586
|
0.357
|
0.298
|
0.707
|
0.185
|
0.190
|
0.071
|
0.235
|
0.371
|
0.200
|
0.220
|
0.02030
|
24
|
0.0201
|
0.51
|
1.490
|
0.878
|
0.7526
|
1.78
|
0.464
|
0.478
|
0.180
|
0.594
|
0.941
|
0.560
|
0.560
|
0.05134
|
26
|
0.0159
|
0.40
|
2.381
|
1.405
|
1.204
|
2.836
|
0.740
|
0.760
|
0.288
|
0.945
|
1.503
|
0.803
|
0.890
|
0.08162
|
30
|
0.0100
|
0.25
|
5.984
|
3.551
|
3.043
|
7.169
|
1.85
|
1.91
|
0.727
|
2.38
|
3.800
|
2.03
|
2.26
|
0.2064
|
32
|
0.0080
|
0.20
|
9.524
|
5..599
|
4.758
|
11.31
|
1.96
|
3.04
|
1.136
|
3.8
|
5.94
|
3.22
|
3.60
|
0.3282
|
34
|
0.0063
|
0.16
|
15.17
|
8.946
|
7.66
|
18.09
|
4.66
|
4.82
|
1.832
|
6.04
|
9.57
|
5.10
|
5.70
|
0.5218
|
36
|
0.0050
|
0.13
|
24.08
|
14.20
|
12.17
|
28.76
|
7.40
|
7.64
|
2.908
|
9.6
|
15.20
|
8.16
|
9.10
|
0.8296
|
38
|
0.0039
|
0.10
|
38.20
|
23.35
|
19.99
|
45.41
|
11.6
|
11.95
|
4.780
|
15.3
|
24.98
|
12.9
|
15.3
|
1.3192
|
40
|
0.00315
|
0.08
|
60.88
|
37.01
|
31.64
|
73.57
|
18.6
|
19.3
|
7.327
|
24.4
|
38.30
|
20.6
|
23.0
|
2.098
|
44
|
0.0020
|
0.051
|
149.6
|
88.78
|
76.09
|
179.20
|
74.0
|
76.5
|
18.18
|
60.2
|
95.00
|
51.1
|
56.09
|
5.134
|
50
|
0.0010
|
0.025
|
598.4
|
355.1
|
304.3
|
716.9
|
185
|
191
|
72.7
|
240
|
380.0
|
204
|
227
|
20.64
|
56
|
0.00049
|
0.012
|
2408
|
1420
|
1217
|
2816
|
740
|
764
|
302.8
|
1000
|
1583
|
850
|
945
|
86.38
|
* 对镀镍RTD型线,将电阻增大19%。** 检查过的线的较大电阻
|
† 不是ANSI符号。 † † N型的电阻率是K型的1.324倍。
|