I know not all hospital outlets are not isolated. Most people here who are installing hospital grade are doing it for the isolated ground and unless wired correctly it will not be or can hurt someone. When an electrician or home owner installs it and does not use the correct wire it is a waste of time & money. You must bond grounds.Sorry Hevac your post is a little confusing. I am sure you are aware Hospital Grade receptacles are made either isolated ground,(IG), and non isolated ground type. I would venture to say the majority of hospital grade recepts used for typical home audio equipment are not IG type. Example is Albert Porter's Porter Ports. A NASA cryoed Hubbell HBL8300H duplex receptacle.
Hevac1
As for Tmesselt case if he paid the extra bucks for a good quality IG hospital grade recept, say like the Hubbell IG8300 he can still use the recept for its great build quality and sonic benefits it may yield for his audio system. As for the equipment ground I assume the dedicated branch circuits are 2 conductor/ with bare grd NM-B sheathed cable. Did he waste his money buying an IG recept in his case? Yes....
As you, I am aware of NEC 2008 Art 406.
You might want to refresh your memory... 406.2 (2)
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If the recept has a ferrous metal yoke he could always use a stranded wire grd pigtail from the yoke, strap, to equipment grounding conductor of the branch circuit. That is if he thinks the ferrous strap is affecting the sonics of his audio system. Brass un-plated strap... there would be no problem jmho.
Jim