In this case a standard receptacle would achieve the same results as an isolated ground receptacle, and at the same time bond the yoke with no adverse affects.
As Curt said, there is no reason to install an isolated ground receptacle in a non metallic wiring method or enclosure.
As far as using plastic boxes in a "Line Isolation Monitored" (in a hospital) system, this would be a violation of 517.13, although isolated ground receptacles are allowed in 517.16.
Roger
[This message has been edited by Roger (edited 07-18-2004).]
