Articles about Neutral and Ground
I have the electrical main coming into an exterior panel, and being back-fed into a 125 AMP breaker. This then flows through the panel itself and into a sub-panel just inside the building.
What are the Electrical Codes for the Grounding System of a Sub Panel in a Detached Building?
Why is the Voltage wrong at the Electric Service Panel? How to Troubleshoot Incorrect Voltage Readings.