Re: SERVICES-GROUND FAULT PROTECTION
230.95 Ground Fault Protection of Equipment shall be provided for solidly grounded wye electrical services of more than 150 volts to ground but not exceeding 600 volts phase to phase for each service disconnect rated 1000 amperes or more.
1. Is your service over 150 volts to ground?
2. Do you have a main disconnect over 1000A?