> What we experienced yesterday was the arc blow that s typical with magnetism.
Well, if you coil the leads, they will generate a magnetic field while you're welding. And that COULD magnetize any nearby steel, including whatever they're wrapped around. I can see if there's pipe laying in the vicinity of the coiled leads, some of the magnetic flux COULD pass through the pipe and affect your welding, even though the coiled leads are a long distance from where you're welding. Maybe.