05-13-2018, 09:10 AM
You might find that while the cable doesn\'t look damaged,it\'s insulation is breaking down.
Disconnect it and stick a meter across it to check the core to core resistance. If you have a megger insulation tester disconnect all devices and try with that.
Disconnect it and stick a meter across it to check the core to core resistance. If you have a megger insulation tester disconnect all devices and try with that.