Isolated ground question

[cppoly]

If a panel is only feeding isolated ground receptacles, is a grounded bus still required in the panel or can everything just get tied back to isolated ground buss in the panel?

 

[LarryFine]

An isolated bus, just like a neutral bus, for the IGs is fine, but don't forget that the panel itself still needs an EGC.

 

[cppoly]

Would it still be possible that the isolated ground at the receptacle terminates on a the isolated ground buss at the panel and continues on to terminate at the service ground. And the sub-panel itself and all connected conduits, back boxes, etc. are joined together to create the EGC so that a ground buss inside the panel is not required?

 

[ptonsparky]

Would it still be possible that the isolated ground at the receptacle terminates on a the isolated ground buss at the panel and continues on to terminate at the service ground. And the sub-panel itself and all connected conduits, back boxes, etc. are joined together to create the EGC so that a ground buss inside the panel is not required?

Yes.

 

[infinity]

You do not need an EGC bus within the panel if there are no branch circuit EGC's. If you have a wire type EGC in the feeder it can terminate directly to the panel enclosure.

 

[cppoly]

Thanks

 

[LarryFine]

You seem to get it. The IG system is wired just like a neutral system.