Grounding multiple electrical systems

[RayD102]

Project I am currently doing calls for 3 separate services being tapped to my new installed power company transformer. Plans only call for one service to be grounded ? To me, I have 3 newly derived services so they all needed to be properly grounded separately. Am I missing something. Thanks.

 

[Smart $]

Welcome to the forum. :thumbsup:

Yes, all three "services" need to be properly grounded, but you need to be more specific as to what the plans call for and what they do not, e.g. main bonding jumpers, grounding electrode conductor connections.

Got a picture of the plans?

 

[kwired]

More details might be a little helpful. As said all three should need connected to a GES.

Three services from the same source to a single building or structure is not typical though unless it a multi-occupancy building.

Are you sure you don't have one service with three disconnecting means? If you do connection to the GES could happen at a common location ahead of the service disconnecting means.