110v Power on a Welding Table?

[Fishy Jim]

This is a strict code violation, this recept needs a ground wire hooked to it or it needs gfci, you cannot have an outlet where a grounded tool could be plugged in without a ground. Where those are used, such as hospitals and the pipe is metal, they are mounted in metal boxes they run an insulated wire for grounding.

Not quite...

Isolated ground receptacles have the same 3 conductors as standard ones, but the ground conductor isn't bonded to the chassis the way a standard one is. Where the mounting ears on a standard three prong outlet are connected to the ground circuit, the isolated ground ones are not.

So you still have the safety features of a regular outlet, but the box it's screwed into is not part of the circuit (and in this case, the table remains isolated from the circuit as well).