I have questions on the Isolating Switch requirements of services over 1,000 Volts, specifically when a vacuum circuit breaker constitutes the service disconnecting means.
2014 NEC Article 230.204 excepts an isolating switch ahead of a VCB whe the VCB "is mounted on removable panels or switchgear units where both of the following conditions apply: (1) Cannot be opened unless the circuit is disconnected (2) Where all energized parts are automatically disconnected when the CB is removed from operating position"
Does a drawout VCB meet these exceptions? if yes, how to meet 204.204(D) Connection to Ground? Would an available drawout grounding cart meet this?
Thanks
2014 NEC Article 230.204 excepts an isolating switch ahead of a VCB whe the VCB "is mounted on removable panels or switchgear units where both of the following conditions apply: (1) Cannot be opened unless the circuit is disconnected (2) Where all energized parts are automatically disconnected when the CB is removed from operating position"
Does a drawout VCB meet these exceptions? if yes, how to meet 204.204(D) Connection to Ground? Would an available drawout grounding cart meet this?
Thanks