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post #1 of (permalink) Old 05-09-2005, 01:50 PM Thread Starter
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OT - Electric Service in Garage

I wanted to upgrade my electric service in my detached garage from an extension cord to a 30Amp 240V panel. I don't run too much in my garage. Just a compressor and other power tools.

I know some people have heavy duty garages on this board. Mine is a 1 car detached about 50' from my house. I wanted to run plastic conduit with 10/3 UG feed wire.

Is 30A too much? How many circuits can I run off this panel? Before I consult a pro, I thought I'd try here.
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post #2 of (permalink) Old 05-09-2005, 03:10 PM
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Re: OT - Electric Service in Garage

Is your garage gonna be at the Bash? if so we could likely work on it there.

Really, 30 amps should do for a small compressor and some lights or power tools, but don't try to run a bunch of stuff at the same time. You will want to run 8 guage wire (minimum) for that long of a run.
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post #3 of (permalink) Old 05-09-2005, 03:38 PM
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Re: OT - Electric Service in Garage

If you are running 30A 240vac, then in reality you will have two 30A 110Vac circuits...which is plenty of juice for most things....assuming your not running something off 240.
At the house, you will need a dual 30A breaker...Lom is right about the wire size.
You might want to check building codes...If you plan to seel later and leave the wiring, you will have issues.
You want to run the wires to a couple of breakers in the garage and then branch off from there.
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post #4 of (permalink) Old 05-09-2005, 06:30 PM
 
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Re: OT - Electric Service in Garage

cant run a welder off 30amps, need 50 amps.
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post #5 of (permalink) Old 05-09-2005, 06:38 PM
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Re: OT - Electric Service in Garage

[ QUOTE ]
cant run a welder off 30amps, need 50 amps.

[/ QUOTE ]

Depending on the welder. Mine draws a max of about 70 running, but has a huge inrush when it turns on. Needs to be on a 150 amp breaker. Had it on a 100 amp breaker and it tripped it about half the times I turned it on.
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post #6 of (permalink) Old 05-09-2005, 06:40 PM
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Re: OT - Electric Service in Garage

sure ya can, just depends on the welders requirements

the Hobart 175 draws about 20 amps (i think) at its rated outputs

my garage is wired for 220v 30Amp breaker
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post #7 of (permalink) Old 05-10-2005, 10:52 AM Thread Starter
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Re: OT - Electric Service in Garage

Thanks. Any pref. of either the 8/3 or the roll of 8 wire and running 4 seperate wires?

The only thing I had left to buy was the wire. I have the dual 30A breaker. But, I only need 110 power.
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post #8 of (permalink) Old 05-10-2005, 10:58 AM
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Re: OT - Electric Service in Garage

i have 4 seperate wires running in conduit.....i'll have to check what guage they are.

P.O. of the house did it
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post #9 of (permalink) Old 05-10-2005, 11:10 AM
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Re: OT - Electric Service in Garage

Running conduit and pulling wires is the 'preferred' method, because later you can pull in bigger wires if you need to upgrade. On the other hand, a size larger wire is cheap. I'd go at least one size larger than I think I need, put in direct burial and be done with it. On the third hand, conduit will be less likely to be damaged when you bury the bodies. [img]/ubbthreads/images/graemlins/grin.gif[/img]
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post #10 of (permalink) Old 05-10-2005, 11:15 AM Thread Starter
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Re: OT - Electric Service in Garage

All the books say 10ga for 30A and 8 for 40A. I know that 50 linear feet I will get a minimal voltage drop.

lom reccomended the 8 wire.

My house is so old, that this would be smallest issue when I go to sell it. My home was built in the 20s. The golden age of home building. Its so old that there was no plywood used in the construction of this house.

But, old things are cooler. That is why I bought it.
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