When circuit conductors are installed in conduit between the disconnecting means and the fire pump, both located within the building, these conduits shall be ___.

When circuit conductors are installed in conduit between the disconnecting means and the fire pump, both located within the building, these conduits shall be ___.

• A. Painted red and properly labeled
• B. Encased in at least 2" of concrete
• C. Either a or b
• D. Neither a nor b

Answer: (B)

Conduits feeding a fire pump inside a building must be given concrete protection to ensure reliability of the life‑safety power supply. The NEC fire pump provisions require a concrete encasement not less than 2 inches thick for conductors run in conduit between the disconnecting means and the pump. This concrete layer protects the wires from physical damage that could occur during construction, maintenance, or equipment use, helping to guarantee the pump will operate when needed in an emergency. Painting the conduit red or labeling it is not the required protection method in this scenario, so those options don’t meet the code requirement.

Conduits feeding a fire pump inside a building must be given concrete protection to ensure reliability of the life‑safety power supply. The NEC fire pump provisions require a concrete encasement not less than 2 inches thick for conductors run in conduit between the disconnecting means and the pump. This concrete layer protects the wires from physical damage that could occur during construction, maintenance, or equipment use, helping to guarantee the pump will operate when needed in an emergency. Painting the conduit red or labeling it is not the required protection method in this scenario, so those options don’t meet the code requirement.