<Ribbon Assembly Knowledge Base>
Factors for Adjusting DC Resistance of Conductors
Temperature of Conductor
Multiplying Factor for Adjustment to Resistance at
°C
°F
25°C (77°F)
20°C (68°F)
0
32
1.107
1.085
46
114.8
0.925
0.908
1
33.8
1.102
1.081
47
116.6
0.922
0.905
2
35.6
1.098
1.076
48
118.4
0.918
0.901
3
37.4
1.093
1.072
49
120.2
0.915
0.898
4
39.2
1.089
1.067
50
122
0.912
0.895
5
41
1.084
1.063
51
123.8
0.909
0.892
6
42.8
1.079
1.059
52
125.6
0.906
0.889
7
44.6
1.075
1.054
53
127.4
0.902
0.885
8
46.4
1.07
1.05
54
129.2
0.899
0.882
9
48.2
1.066
1.045
55
131
0.896
0.879
10
1.061
1.041
56
132.8
0.893
0.876
11
51.8
1.057
1.037
57
134.6
0.89
0.873
12
53.6
1.053
1.033
58
136.4
0.887
0.87
13
55.4
1.048
1.028
59
138.2
0.884
0.867
14
57.2
1.044
1.024
60
140
0.881
0.864
15
1.04
1.02
61
141.8
0.878
0.861
16
60.8
1.036
1.016
62
143.6
0.875
0.858
17
62.6
1.032
1.012
63
145.4
0.872
0.856
18
64.4
1.008
64
147.2
0.869
0.853
19
66.2
1.004
65
149
0.866
0.85
20
68
66
150.8
0.863
0.847
21
69.8
0.996
67
152.6
0.86
0.844
22
71.6
0.992
154.4
0.842
23
73.4
0.989
69
156.2
0.855
0.839
24
75.2
0.985
70
158
0.852
0.836
25
77
0.981
71
159.8
0.849
0.833
26
78.8
0.977
72
161.6
0.846
0.83
27
80.6
0.973
73
163.4
0.828
28
82.4
0.97
74
165.2
0.841
0.825
29
84.2
0.966
75
167
0.838
0.822
30
86
0.962
76
168.8
0.835
0.819
31
87.8
0.958
170.6
0.817
89.6
0.974
0.955
78
172.4
0.814
33
91.4
0.951
79
174.2
0.812
34
93.2
0.967
0.948
80
176
0.809
35
95
0.963
0.944
81
177.8
0.807
36
96.8
0.959
0.941
82
179.6
0.82
0.804
37
98.6
0.956
0.937
83
181.4
0.802
38
100.4
0.952
0.934
84
183.2
0.815
0.799
39
102.2
0.949
0.93
85
185
0.797
40
104
0.945
0.927
186.8
0.81
0.794
105.8
0.942
0.924
87
188.6
0.792
42
107.6
0.938
0.921
88
0.805
0.789
43
109.4
0.935
0.917
89
192.2
0.787
44
111.2
0.931
0.914
90
194
0.8
0.784
45
113
0.928
0.911
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