Electricians?
I need a 3 prong 220v plug installed for my MIG off the main fuse box located in the garage.
I'm in Clear Lake, so the closer to me they are, the better.
According to The National Electric Code 2005 Section 250.140, if you have an existing 3 prong receptacle, you can change the appliance to the 3 prong, but if you need to replace the wire, or add a new 220 circuit, it needs to be 4 wire.
According to The National Electric Code 2005 Section 250.140, if you have an existing 3 prong receptacle, you can change the appliance to the 3 prong, but if you need to replace the wire, or add a new 220 circuit, it needs to be 4 wire.
And sorry to the OP for my misreading of the code.
Trending Topics
And sorry to the OP for my misreading of the code.
The Best V8 Stories One Small Block at Time
"Appliance. Utilization equipment, generally other than industrial, that is normally built in standardized sizes or types and is installed or connected as a unit to perform one of more functions such as clothes washing, air conditioning, food mixing, deep frying, and so forth."
Thats not a very broad statement. I wouldn't consider a welding machine as an appliance after reading that, but I could still see how "one" could interpret that, such as the electrician. Either way though, the 4 prong couldn't be worse than 3 prong, so I see no harm in it.



