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frogger

04:14PM | 11/17/03
Member Since: 08/21/03
17 lifetime posts
Bvelectrical
hi, building a new garage and almost ready to start the electrical stage. Couple of questions
First some info......The garage is about 50-60 feet away from the service panel. I want to have the basic circuits like lights, outlets etc. I do want a 220 line for my air compressor also.
*How many circuits should I figure for the outlets considering this is a garage and will most likely get good power tool usage..
*What size wire should I run from the panel to the sub panel??

Realizing I am not capable of hooking this thing up, I do plan on having an electrician come out. I just want to do the "dirty" work like most do.

Thanks

Tom O

12:47PM | 11/18/03
Member Since: 09/17/02
477 lifetime posts
The expensive part, either in labor or paying someone else to do it, is the trench. Plastic conduit & the conductors are relatively cheap.

I'd vote for 1 1/2" PVC conduit with the conductors & sub-panel sized at 100 amps. Conductor sizes are #3 copper THWN or #1 aluminum XHHW.

How many circuits? Good question. Chances are, you will be the only one working in your garage, so one or two 20 amp receptacle circuits should do the trick. Of course, these receptacles will need to be ground fault protected (but your electrician should know that).

Tom

frogger

04:38PM | 11/19/03
Member Since: 08/21/03
17 lifetime posts
As far as the conduit, I forgot to mention that the 50 to 60 foot run is across the house. The only time the wire will go outside and across land is for the 5 feet between the two structures. Now, do I or should I run the wire in conduit through the attic and down the wall or can it remain bare since it is in the attic?
Thanks

Tom O

06:08AM | 11/20/03
Member Since: 09/17/02
477 lifetime posts
The types of wire mentioned in my previous post must be installed in a raceway system (usually conduit).

frogger

06:04PM | 11/20/03
Member Since: 08/21/03
17 lifetime posts
Tom,
ok, I am still confused. The wire, which I am assuming should be #3 according to your post, needs to run through my attic and down the inside of the exterior wall next to the new addition encased in conduit? Or does it only have to be in conduit once it goes underground, crossing the walkway between the two buildings? Also, is there a code for the size of conduit used?? What I mean is I have a lot of 3/4 inch schedule 40 pipe which I believe is identical to the gray conduit sold on the market. Just was wondering if that would suffice?
Thanks alot

Mat

Tom O

03:42PM | 11/21/03
Member Since: 09/17/02
477 lifetime posts
Mat,

We're getting nowhere.

Installed in a raceway system is as plain as I can make it.

3/4"" is way too small for the size of conductors that I recommended.

Pipe is used by plumbers, every piece of schedule 40 PVC conduit I've ever seen is grey.

Consult your local electrician.

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