DaveDesjardins
Member
Is it an oversight that section 517.13 requires branch circuits serving patient care areas be "provided with a ground path for fault current by installation in a metal raceway system,..." without addressing installation of these systems in MRI (which require the use of non-ferrous materials)? This has come up on several MRI projects in our office in which the contractor had intended to use PVC as the non-ferrous material but the code doesn't allow it. Would they need to use aluminum conduit in these cases? Maybe I'm missing something here. Any direction/comment would be appreciated.
