Say what? Can anyone confirm? Is this a municipality, state, or national thing?
I hope this isn't true, all my stuff is three prong, and I personally like the simplicity of two hots and a ground. It's easy to pull, easy to wire and hard to screw up.
Reflexx said:
Second questions, how do I wire up my plasma/welder to a four prong plug, if it's only got 3 wires? do I leave the ground off?
If this is true I'd look for a way to build an adapter that'll accept the 3 prong on all your equipment, then plug into the wall 4-prong. One or two adapters can be moved between equipment as necessary.
Ultimately, it's going to be up to the local municipality. State codes may say one thing, but local gubmints can always be more strict. If you only needed 3-prong when you built the old shop, I doubt anything has changed since then. Don't you have a brother-in-law or something that's licensed in CO? Ask. :flipoff2:
The four-prong deal frequently depends on application, too.
4 prong is required for new appliance installations. Dryers, etc. At least in most municipalities. It's not a requirement for 220v tools (welders, table saws, jointers etc etc etc)
You are mixing up requirements. Four prong plugs are required for anything that is 110/220V so that you have both hots (for the 220V and one of the hots for 110V), the neutral (for the 110V), and the ground (for both 220V and 110V). These are only for something like a dryer or range which uses 220V for the heating elements and 110V for the lights and such.
A welder, compressor, or such is JUST 220V - there is absolutely no need for a neutral. You have the two hots and a ground. One more time - NO NEUTRAL.
So, no change to the code as far as for what you are doing.
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
Related Threads
?
?
?
?
?
Pirate 4x4
18.7M posts
366.4K members
Since 2000
A forum community dedicated to custom off-road vehicle owners and enthusiasts. Come join the discussion about trail reports, builds, performance, modifications, classifieds, troubleshooting, fabrication, drivetrain, and more!