NEC state to state

[larryallen77]

In an autobody repair shop location are there differences from state to state on requirements for power receptacles and connectors for AC power (1 & 3 phase 220V and 115V)? Are there any states where the requirements are different?

 

[charlie b]

Re: NEC state to state

I'm sorry, but I don?t understand the question. Are you talking about how many of what type are required? Are you talking about the wiring methods (i.e., is a body shop considered a classified area)? Is it something else?

In general, yes, many things vary state-to-state. My home state of Washington, for example, publishes administrative rules that supercede specific sections of the NEC. California writes their own electrical code, as does the city of Seattle, Washington.

Can you give us a clearer idea of what you are trying to find?

 

[larryallen77]

Re: NEC state to state

Charlie,
Sorry for being so unspecific but I am an electronic engineer and not that familiar with NEC. I have a German vendor that sends an installer to the USA to install aluminum repair bays in body shops. The vendor has asked if the standards for wall plugs and mating connectors varies from state to state. Part of the installation is hard wired so that is not a problem. But he has some portable welding equipment that runs on 220V 3 Phase and some 110 volt equipment that also just plugs into the wall outlet. I think the right answer to him is that in general the NEC rules are consistant for the most part and he should probably rely on the local electrician to worry about the right mating plugs and connectors rather than trying to supply them as part of his equipment package. I just wanted to do a sanity check with the experts before I advised him.

 

[George Stolz]

Re: NEC state to state

Originally posted by larryallen77:
But he has some portable welding equipment that runs on 220V 3 Phase and some 110 volt equipment that also just plugs into the wall outlet...

I'm no master of the three phase, and I do operate on George-Voltage, but he needs to verify the voltage at the receptacle before he plugs his 240 volt welder into a 208 receptacle.

he should probably rely on the local electrician to worry about the right mating plugs and connectors rather than trying to supply them as part of his equipment package. I just wanted to do a sanity check with the experts before I advised him.

Absolutely. It would be a good idea to let the electrician know what style of plug he's using.

This begs a question of me: Does something like a welder that uses two legs of a system care if the overall system is three phase instead of single phase? Since the phase angles are different I would assume there would be a problem, but having two hots to use I would assume the device would work? You know what they say about assuming things...