Pharmed-out
Member
- Location
- NW Pa in the "Wilds"
I found a thread similar to this, but I never found the answer. How can you safely enter a purged sheet metal enclosure in Div.1 and not create a serious leak point for the purge? I must try to maintain a NEMA 4 equivalent seal on my purged box, as it is in a wash down area, and still enter with conduit. As the other thread uncovered, the typical conduit hubs, with NEMA 4 rated gaskets, are rated only for Div.2. No-one ever addressed this quandry in the previous thread. Does the enclosure rating after purge extend to the fittings between the enclosure and the seal, since they are also purged?