Intrinsic Safety Earth Bar

[Deepdiver7]

Dear,

I am looking for a reference or standard stating that an intrinsic safety earth bar is required, i guess it
should be seperate from the clean earth (for non-intrinsic signals) and the Protective earth (for AC signals).

I appreciate if i can get more info on this issue, what are the requirements for intrinsic safety earth bar.

Thank you for your help,

Deepdiver 7

 

[Smart $]

It may be different in other parts of the world, under different codes or regulations, but under the NEC, intrinsically safe systems use the same grounding system as everything else.