Appendix 4 Temperature Correction Table
176
Source
→
Electric wire and cable handbook (China)
China Machine Press
19
0.91
0.857
0.85
0.96
0.93
0.96
20
1
1
1
1
1
1
21
1.09
1.17
1.11
1.06
1.11
1.07
22
1.18
1.34
1.20
1.13
1.23
1.14
23
1.26
1.57
1.40
1.20
1.36
1.22
24
1.33
1.81
1.80
1.27
1.51
1.30
25
1.44
2.08
1.90
1.35
1.68
1.38
26
1.55
2.43
2.05
1.44
1.87
1.45
27
1.68
2.79
2.40
1.54
2.08
1.55
28
1.76
3.22
2.70
1.65
2.31
1.65
29
1.92
3.71
3.80
1.77
2.57
1.77
30
2.09
4.27
4.10
1.90
2.86
1.89
31
2.25
4.92
4.45
2.03
3.18
2.00
32
2.42
5.60
5.20
2.17
3.53
2.15
33
2.60
6.45
5.80
2.32
3.91
2.32
34
2.79
7.42
7.60
2.47
4.33
2.50
35
2.95
8.45
8.28
2.65
4.79
2.69
36
3.12
9.70
8.50
2.85
5.29
2.90
37
3.37
-
9.66
3.10
5.83
3.13
38
3.58
-
11.60
3.35
6.44
3.38
39
4.06
-
14.50
3.63
7.18
3.65
40
4.53
-
16.00
3.95
8.23
3.94
Temperature Conversion Coefficient for Power Cables
Coefficient A
Temp
eratu
re
[°C]
Oil filled
insulated
cable
Polyvinyl chloride
Insulated cable
Natural
rubber
Natural
butadiene
styrene
Butyl
rubber
1 to 3 kV
6 kV
Table
No.3
Table
No.4
Table
No.5
Table
No.6
Table
No.7
Table
No.8
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