Quick Electrical Question

[uncrichie]

Wanted to hit the local HD this afternoon for supplies for tomorrows project. Running a 40' section of #10 wire to my attached garage from a 240V 20 amp breaker in my main panel in the basement. Yea I know I can use #12 I want to use #10. Heres my question, does code require me to use a 3 wire or 4 wire outlet? My plan was to use just a 3 wire outlet (for a welder) but may also be used later for a metal lathe. Thanks in advance. Uncrichie.

[uncrichie]

Disreguard, I found the answers I need. Uncrichie.

[Sberry]

Just checking,,, but welders use 3 wire. Only appliances that use both voltages internal use 4 wire, on home current.

[uncrichie]

Thats what I also found out. Taking a break right now but project is underway. I really hate running blind wiring through ceilings and walls. Well, you guys know what I'm talking about. Uncrichie.