I have a piece of equipment ( a large ventilation enclosure ) that is being installed in a Class II Div II location that also must meet GMP. Therefore, all the conduits and fittings need to be stainless as well as c2d2. Within the enclosure i have lights, and receptacles (both Exp Proof) with conduits running into a hammond box with a Type Z pressurizing system.
Do I need to seal the conduit above the receptacle box and junctions boxes leaving the lights? What about the conduits leaving the hammond box. 502.10 appears to say no since im going from a classified to unclassified location (hammond box) per 502.15?
Per the code, it seems my hammond box should now be unclassified since its being purged but im stuck since this entire piece of equipment is located in a classified location. Not to mention im having trouble locating class II div II stainless sealing fittings and couplings ( know any suppliers)
Any insight would be appreciated.
Thanks
Do I need to seal the conduit above the receptacle box and junctions boxes leaving the lights? What about the conduits leaving the hammond box. 502.10 appears to say no since im going from a classified to unclassified location (hammond box) per 502.15?
Per the code, it seems my hammond box should now be unclassified since its being purged but im stuck since this entire piece of equipment is located in a classified location. Not to mention im having trouble locating class II div II stainless sealing fittings and couplings ( know any suppliers)
Any insight would be appreciated.
Thanks