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Re: Planning ahead- running power to the garage

To: John Miller <>
Subject: Re: Planning ahead- running power to the garage
From: Eric Murray <>
Date: Fri, 1 Nov 2002 12:22:52 -0800
On Fri, Nov 01, 2002 at 11:39:33AM -0800, John Miller wrote:
> >> My thoughts are (aside from the 60 amp 220 service and a sub panel in the
> >> garage):
> >
> > I would suggest a minimum of 100 amps of 220. A TIG welder can eat up
> > 50-60 amps all by itself.
> We're in the middle of a sizeable remodel on our house, and in adding up 
> the electric and gas requirements I'm looking at something close to a 400 
> amp service (of course, that's not just the new shop...) and enough gas to 
> feed 600K Btu of stuff.
> I'm trying to figure out whether it's desirable to talk to PGandE about 
> putting in 3-phase power as a hedge against my scoring a decent used 
> Bridgeport sometime in the next year.

I don't know for sure, but I'd bet that's significantly more
expensive than the $2-500 it'll cost for a decent 3ph converter...
plus the better ones of those will let you adjust the speed of
the 3ph equipment its driving, or even reverse it.

Some people on the mill-drill list are even replacing their 1ph motors
with 3ph motors plus converters so they can set speed electronically
and not have to mess with belts.


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