I've read previous posts on this subject but want to make sure I understand completely. If there is a fire pump tap section ahead of the main disconnect and we run feeders underground from this tap section to a remote fire pump controller with service disconnect, are the fire pump conductors considered to outside the building since they are below concrete and terminate only within in the switchboard section and fire pump controller. Are we allowed the short conduit stub-up to the bottom of the fire pump controller or do we have to encase the conduits/conductors in concrete right up to below the tap lugs in the tap section and from the floor to the bottom of the controller.
Fire Pump Tap Section in Switchboard
- Thread starter DW98
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gadfly56
Senior Member
- Location
- New Jersey
- Occupation
- Professional Engineer, Fire & Life Safety
The conductors/cables from the service entrance to the fire pump room must be covered by 2" of brick or concrete, or you can run MI or adopt one of the other hideously expensive approved fire wrapping/proofing schemes from UL. If you're under the slab and it's at least 2" cover then you're good on that score. Inside each room you can run MC or in EMT or rigid.
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