I will be wiring a church audio system and I'll be using MC cable and isolated ground recepticles. I know there are many pros and cons about the practicality of IG but I decided to go with it anyway. When I install the recepticles in a metal box do I still need to run a EGC to the metal box separate from the IG because of the metal box? If so, how do you guys and gals do it with MC? Thanks for your oppinions even if you think I am nuts.
Blessings, Mark
