Not very safe, but it could be done. You would have a breaker that trips on both legs, of which you will be using one leg and the neutral. No simple conversion and I'm assuming you have a 3 wire outlet not the newer 4 wire outlet. Their is at least three ways of doing this cheap and dirty, all not to code, that I can think of off the top of my head, and maybe one way that might be code legal. Possibly code legal method (Replace breaker with a single 20 to 30 amp breaker as needed by welder. Tape both ends of either black or red wire with green electrical tape, attach the now green wire to neutral bus bar on panel. replace dryer outlet with a 20/ 30 amp 110 volt outlet. Green taped wire is now ground, white wire should still be neutral to hook up new outlet with correct polarity and the red or black wire which ever one you connected to new breaker is black.) If you have a 3 wire outlet the round pin is neutral, each leg is one of the flat pins. The reason I won't tell you any more to hook it up against code is when you do this you eliminate a ground or use the neutral as a ground also, not a good idea. 110 volt welders usually can run on a 15 or preferably 20 amp circuit. Not sure why you want to use a 30 amp dryer circuit. would you use that to run a skill saw or air compressor? If I didn't have a good 20 amp outlet somewhere in my shop/garage I think that putting one in would be a priority.
Glen
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Posted by: Glen Winters <glenbwint@yahoo.com>
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