[GlennCMC70]

there is no 220V service in my garage - thats about to change.

i picked up a 250V 30A outlet (3 slots arranged in a circle w/ one looking like a "L") which matches the plug on the welder.
i have a 30A breaker that takes up two slots in the breaker panel for the house (located in the garage!)
i have some new 10 gauge 3 conductor wire (black, white, and green conductors).
snap the breaker in place - make sure its switched off.
install a black and white conductor in one of the two set screw slots in the 30A breaker.
connect the other ends of the black/white to the outlet and the ground to the ground on the back of the outlet and inside the breaker panel (metal box).


to be honest here, the only thing i know about A/C electricity is it can kill you. other than that, i don't know jack. i can replace a bad outlet/socket/switch, but i couldnt wire any 110v circuit from the box to the wall if i had to.

so does the above sound right? i know there should normally be a red wire to use in place of the white, but i've read thats really only required for 4 prong plug/outlets.

looking for the FRAXX guidance here oh wise one's. (IMG:http://www.frrax.com/rrforum/style_emoticons/default/drink.gif)

[nape]

I AM an electrician and Sean's advice is correct.

I'm not sure what the codes are down there, Glenn, but make sure all the lock nuts and set screws on your fittings are tight when you run it in pipe. Up here in Chicago, the raceway (pipe, greenfield (spiral metal conduit you spoke of), seal-tight, wire mold, etc) is your ground. If you do not tighten the fittings, you have no ground and a very dangerous situation.

In normal residential situations not taking de-rating or special applications into mind, the rule of thumb is:

#14 = 15A
#12 = 20A
#10 = 30A
#8 = 50A

As far as Romex, it's illegal in Chicago and the surrounding suburbs and I won't use the stuff. You're basically running extension cords through your walls, no thanks. On top of that, if it ever does go bad or you want to upsize the conductors, then you're screwed. Time to tear down the drywall.