Jonathan Grobe wrote:
On 2008-05-29, RBM wrote:
You are correct. The service entrance cable will determine the service size.
If it is aluminum, it should be #2, if it's copper #4. Anything smaller
would be a 60 amp service
What is the diameter of #2 aluminum?

#2 is #2, whether it's Al or Cu -- it's the wire gauge and the gauge is
independent of material. Only the conductivity of Cu is better than Al
so can use smaller gauge wire compared to Cu for the same ampacity.

That said, #2 is roughly 0.25" diameter. See following link for table
of AWG dimensions.

http://www.rbeelectronics.com/wtable.htm

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