Welding ground...don't do this!

Dave_J said

Most welder have low voltage, like 22 volts DC but the AMP's will kill ya.

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Uh, no............

The current that goes through you is what kills you but it is DRIVEN by voltage. And "most welders" are not necessarily 20V, either. My mig on higher settings is something above 40 or so, and many stick welders are up around 80V or so open circuit.