raheloftin
New member
My query is as follows:
I have two 3 phase transformers, A & B, with a 208/120 volt secondaries.
Each transformer supplies a separate panelboard A & B respectively.
Each panelboard is grounded to the same bus bar in the electrical room which then goes back to a common counterpoise building grounding system.
Together, the 2 panelboards have branch circuits to standard receptacles mounted in a common metal enclosure.
If a phase conductor and neutral from Panelboard A supplies one receptacle and a phase conductor and neutral from Panelboard B supplies an adjacent receptacle, do I need a separate ground/bond back to each panelboard if the circuits are in the same 50 foot MC cable?
I have two 3 phase transformers, A & B, with a 208/120 volt secondaries.
Each transformer supplies a separate panelboard A & B respectively.
Each panelboard is grounded to the same bus bar in the electrical room which then goes back to a common counterpoise building grounding system.
Together, the 2 panelboards have branch circuits to standard receptacles mounted in a common metal enclosure.
If a phase conductor and neutral from Panelboard A supplies one receptacle and a phase conductor and neutral from Panelboard B supplies an adjacent receptacle, do I need a separate ground/bond back to each panelboard if the circuits are in the same 50 foot MC cable?
