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Struggling to find any information on the changes to a cable at altitude compared to at sea level. The initial task was to calculate the resistance of generator wires and then change them from copper to aluminium cables to save weight. I have done this leading me onto describing the effects of the cable at 35,000 feet compared to at sea level.

All i can think of is a decrease in temperature causing a reduction in resistance but would ideally like to provide an example but struggling to find a formula to fit. I know copper has a temperature coefficient of resistance of 3.9 * 10^-3 and aluminium is the same.

Are there any other major effects to the cable at altitude?

Cheers,

Joe

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# Effects on a cable at sea level compared to 35,000 feet

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