what size wire for 150 pull of 220v - is 6 ok?

[kdxyardsale]

I am preparing to build a shop and have an existing spare 50 amp service in the main box. I have a 150 foot run for the shop and will have a liscenced electrician spot me on the install from work. I have some 600v rated 6 gauge wire(new) that is long enough for 3 pulls, that was left over from a power project next-door. Will this be large enough gauge to run a small 220 welder or compressor? I work on the electronics at the prison and am filling in as the electrician as we do not have one right now at our facility, please help

 

[tom baker]

Re: what size wire for 150 pull of 220v - is 6 ok?

Feeder to separate building needs 4 conductors, while you can reground the neutral it is not recommended. The size conductor depends on the connected load and distance. 6 AWG may be ok.
Also the separate building will require a disconnecting means such as a loadcenter with main breaker and a grounding electrode system.