Quote:
Originally Posted by sonofcy
They tried several pedestals. They have fixed the problem by running new wires in the trailer, it was a new unit and the cable from the entrance to the distribution panel went under some cabinets and someone drove a screw through the cable.
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Yup, there are clearly is a wiring problem in the trailer. But I can't help thinking that the pedestal is also at fault.
The skin is almost certainly grounded, that is, connected to the frame which has a hard ground on it. Power in the skin should return to the pedestal over the ground pin. This should have triggered a GFI or otherwise popped a breaker.
Now, if the pedestal's ground was disconnected, then the skin would've stayed hot and the danger condition would be exactly as you described. Also, that would explain why you only saw this condition at one pedestal and never in other places. What it wouldn't explain is why the trailer wouldn't immediately pop the breaker on every other pedestal, unless the short was really really high resistance.