Home › Electrical Engineering Forum › General Discussion › cable size & material vs current capacity › Re: cable size & material vs current capacity
2011/05/06 at 2:48 am
#12059
erickench
Participant
Have you ever heard of this formula:
Resistance = K x L/A
The length L is in feet and the area A is in circular mils. K has two different values for copper and aluminum.
Copper K = 12.9
Aluminum K = 21.2