On Tue, 04 Sep 2007 20:00:07 -0400, Ned Simmons
wrote:

i

Sure isn't, because the 1 amp table lamp is on a 7 amp cord in a 15
amp circuit.

Seems like a perfectly good analogy to me. The cord is sized
considering the nature of the load, not the capacity of the circuit
that's feeding it. The welder in question draws about 30A @ 30% duty
cycle.


Then there is the standard practice among professional welders to put
a 10' whip of much lighter, more flexible cable on the end of a
welding lead.

Gunner