Hello Nick, the redundant grounding is still required in Patient Care Areas per 517-13(a), 517-13(b) simply allowed a "flexible" wiring method, but didn't modify any other requirement.
You are right that in Non Patient Care Areas it is not needed
I would think there was an ROP driving this change to 517.30(c)(3) but don't know where to find it, maybe some else will come forward.
Roger
[This message has been edited by Roger (edited 05-09-2004).]
