On 2009-02-14, Phisherman wrote:

I used a #10 wire for a 220v circuit installation, not that it
needed it, but more that's what I had available at the time. I run
a 3HP saw, 1.5 HP DC, 4HP lift, possibly all three running at the
same time.

These are all 220V motor loads? I assume you mean that each one has
its own circuit wired with #10 copper. If they are all on one circuit,
it should be #6 copper, as the required ampacity is 55 amps.

Cheers, Wayne