greenspark1
Senior Member
- Location
- New England
Hi,
I have a 24"x24" JB that is being installed in a class I Div 1 location. All of the conduits in/out are have EYS seals per NEC. The only thing going in the JB are terminal blocks. These are used to connect wires from inside the classified location to wires pulled in from a remote location. There are no active devices or spark/arc producing components. Does the box itself have to be rated for classified locations?
501.10(A)(3) says yes, no exceptions. But I don't see the point of a $9,000 JB if there is no way that a spark/explosion could occur inside. Looking at 501.15(A)(1), the JB doesn't contain any of the components that would require sealing (switches, CBs, fuses, relays, resistors, etc). Has anyone run into this situation before? Obviously the client doesn't want to pay for a $10k JB when it doesn't seem necessary. Any input is appreciated, thanks!
I have a 24"x24" JB that is being installed in a class I Div 1 location. All of the conduits in/out are have EYS seals per NEC. The only thing going in the JB are terminal blocks. These are used to connect wires from inside the classified location to wires pulled in from a remote location. There are no active devices or spark/arc producing components. Does the box itself have to be rated for classified locations?
501.10(A)(3) says yes, no exceptions. But I don't see the point of a $9,000 JB if there is no way that a spark/explosion could occur inside. Looking at 501.15(A)(1), the JB doesn't contain any of the components that would require sealing (switches, CBs, fuses, relays, resistors, etc). Has anyone run into this situation before? Obviously the client doesn't want to pay for a $10k JB when it doesn't seem necessary. Any input is appreciated, thanks!