found strange voltage to ground when trying to correct unbalanced panel wires, all four 3wire cables ran to main were all on same phases, guy used twins and put both bl. and red on same breaker. found one set giving me 68 volts red wire to phase a and 168volts to b, not sure of voltage to ground when both breakers off, only hooked up black wire, goes to fish tank and other wall plugs, could not find red wire, but didnt do exhuastive look, will do tomarrow, didnt want potential 240 across 120v gear. I figure that the white wire nut in a box finally burnt out with potential of 40amps coming back. I also got 1.81 ohms to neutral bar, so small load on red wire.....not alot of training in troubleshooting, and was stumped on friday thanks chris