Which gauge do I use?

jbfan

Follow stubies advice and you will be fine.

I think you could even run a 60 amp service and be fine.

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Stubbie

I'm sorry I do not understand what you mean by the above.. I gather though your not wanting to have that much power as suggested out at the shop. If you weld on a high output setting and run your air compressor that is going to be in the neigborhood of 30 to 35 amps on your feeder. It would be much better to run 240 volts and 120 volts using a 4 wire feeder so you can balance your loads better. You must have neutral to get 120 volts. You can't use multiple single pole breakers in your house panel to run circuits to your shop.

And I agree a 60 amp service would be fine I was just giving you the maximum bang for your buck with the 70 amp feeder.

frenchelectrican

NQBQDY.,

The set up as Stubie et few other suggest is very common pratice and I have done this all the time on either side of pond.

And this set up will have more than enough capacity for your system for your workshop and a big plus that you will have 240 volts avaiable there so it will not be a issue espcally with med to large compressour ( very common for many peoples to set this up on 240 volts for few good reasons )

But one thing when you plan to do the wiring are you plan to enclose the wall or what ?? That will make the differnce on methold on useing the conductors.

Basically everything on 120 volts will be protected by GFCI recepectale or breaker ( Cheaper use the GFCI receptale at first point then it will be protected downstream )

The 240 volts items do NOT need GFCI at all.

Make sure you get the permit for this one.

Merci,
Marc

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The answer will be based on NEC ( National Electrical code ) or CEC ( Cananda Electrical code ) or ECF ( Electrique Code France )

NQBQDY

Ok that all sounds great, thanks again everyone. I will update when I have completed the project or if I hit a snag. Meanwhile have a Merry Christmas.

frenchelectrican

Ya are more than welcome and keep us posted how you got so far and if anymore issue you run into or need special tips just ask us we will help ya on that.

By the way Joyeux Noël to ya.


Merci,
Marc

__________________
The answer will be based on NEC ( National Electrical code ) or CEC ( Cananda Electrical code ) or ECF ( Electrique Code France )