The DC resistance of copper wire increases with increasing temperature in accordance with the formula:
On the basis of the above formula, we now generate a table of correction factors for copper conductors in operating in the temperature range 25 � 200 degree celsius:
On the basis of the above formula, we now generate a table of correction factors for copper conductors in operating in the temperature range 25 � 200 degree celsius:
Temperature (0C) | Multiplying Factor |
25 | 1.000 |
40 | 1.058 |
50 | 1.096 |
55 | 1.116 |
60 | 1.135 |
65 | 1.154 |
70 | 1.173 |
75 | 1.193 |
80 | 1.212 |
85 | 1.231 |
90 | 1.250 |
100 | 1.289 |
105 | 1.308 |
125 | 1.385 |
130 | 1.404 |
150 | 1.482 |
200 | 1.674 |
Mr. Muhammad Saqib, M.Sc. (PAK), Research Fellow (PAK), a member of IEEE, is a Fulbright Alumnus and earned his Master’s Degree in Electrical and Power Engineering from University Of Engineering And Technology Taxila, PAKISTAN.
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