Reply by David Kirtley

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Posted on 220v electrical question

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David Kirtley

1286 posts in 4049 days

#1 posted 08-11-2012 06:03 PM

Actually, I would suggest if there is a GFCI breaker, leave it. The only reason not to have every circuit a GFCI is expense. Always keep in mind that the Electrical Code is the MINIMUM safety requirements. If a functioning GFCI breaker is tripping, it means there is a problem. Electricity is going to ground somewhere. Basically, a GFCI breaker detects that the current coming back through the common and ground equals the current going in. (Generally speaking. The actual way it works is a bit more complicated.) The only place you should have electricity going to ground is through a properly grounded rod. You really don’t want some electric current finding you to be the most attractive path to ground.

BTW, I have an identical situation. Some time in the future I am going to take an abandoned hot tub circuit and run it to the shop (ok, it’s just a garage) to use for a welder/plasma cutter or any other 220v need I might drag in.

-- Woodworking shouldn't cost a fortune:

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