Re: Nuisance tripping of 80 amp CB?
I had wires on a 150HP Nitrogen Compressor Motor that went better than a year chaffed inside the conduit from the pull, couldn't even notice it in any of the fittings. It was very intermittent, would trip the breaker about 5 times every 3 or 4 weeks and then run fine. Kept going that way for a year. They replaced the motor once, the breaker three times, and it never smoked anything, just got lucky to find it when they went to change the motor the second time for no real reason but to try it again, and when they meggered the wires back to the breaker this time they were grounded. They never welded together or to the pipe, slid right out when they went to replace them.Originally posted by charlie tuna:
musty,
insulation break on a wire inside a raceway doesn't last long -- it welds itself to the raceway!