oldyellr
Silver Member
The "ground" of the welding side of the circuit is distinctly different that the ground of the line voltage circuit
Okay, I'm learning something here. I just went out to the garage and checked my cheapie AC stick welder and sure enough, there's no continuity between the ground prong of the plug and the ground clamp. That puzzles me. Is there a specific reason for this? I can see where would be mandatory for an AC/DC welder, but I can't see a reason for it for AC.
Also, as Steave mentions, the welding and electrical circuit grounds are connected in industrial settings. Is there anything anywhere that says an AC welding table should not be connected to the building electrical ground and why?