Definition of "Metalic water piping system" Needed in the NEC?
--piping system or is it likely to become energized ---
Perhaps not, Are there wires near by?
A very interesting situation. We "should" bond the duct work between flex and transitions.
Should we have to bond across all sprinkler victolic fittings? Those all have the rubber gasket ya' know',Not every length is secured by a clamp type hanger, most are just hangers.Those clamps don't have teeth either.
HVAC- I have had live flex!!!! Scary discovery!!!!
