I have eleven yardlights (40 watts bulbs), each light pole has an outlet and they are all controlled with two three-way switches. The one-way distance for the circuit is about 900 feet. Because of the outlets, I have them on a new GFCI breaker (Cutler Hammer). However, the GFCI breaker trips fairly regularly when I switch the lights on for no apparent reason in good weather with nothing plugged in the outlets. I have done the usual checks with my meter and can’t find a problem.
Is there some peculiar electric phenomenon taking place because of the distance that’s tripping the GFCI breaker?
Any ideas or similar experience?