DM2-Inc
Senior Member
- Location
- Houston, Texas
We're designing a fire alarm system for a truck loading bay. Over each bay, the customer want's a fire alarm strobe light. Because the roof structure is so high, the strobe lights will need to be suspended some distance. Because the area is classified as Class I, Div 2, the conduit will be rigid and a junction box, with seal, will be used to make the wiring connections. The seal will installed ahead of the junction box such that the junction box is between the seal and the strobe (less than 18"). The seal, junction box, breather/drain, and strobe have a total weight of less than 10 lbs.
While I'm sure the electrician knows what the requirement is, I need to put a detail together that defines the mounting requirements.
Where can I find references in the NEC that tells me how far I can suspend this seal, junction box, breather/drain, and strobe, before it needs to be supported by something.
While I'm sure the electrician knows what the requirement is, I need to put a detail together that defines the mounting requirements.
Where can I find references in the NEC that tells me how far I can suspend this seal, junction box, breather/drain, and strobe, before it needs to be supported by something.