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Can someone tell me how to calculate the size of a power
cable? What are the factors involved in cable sizing?
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Answer Posted / sr
The factors involved in cable sizing are:
1. Voltage grade
2. Various Derating factors depending on cable laying
(direct in ground), ambient temperature considered, group
factors (all these data are available in cable catalogue)
3. Length of cable laying for calculating voltage drop.
Voltage drop shall generally be within a max. of 3%.
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