Slim wrote:
zxcvbob wrote:

[snip]


You can't have any metal gas pipes or telephone or CATV wires
connecting the house to the garage.

got coax and phone and network and alarm, am I screwed?

Yes. In that case, you'd have to have a proper subpanel with ground and
neutral separated. How far is this? How much trouble would it be to
run an 8-3 cable (or 6-3 aluminum) and have a nice 40A feeder with a
separate ground and neutral conductors?

What if I put just 1 30amp 220v outlet in the shop?

As long as it's just a grounded 220v with no neutral wire. You could
also put in a tiny subpanel (70A ?) so you could split that into two 15A
or 20A circuits with proper overcurrent protection. And by doing that,
if you trip a breaker it'll probably be one of 'em in the garage instead
of the 30A in the house.

Best regards,
Bob