Fire pump supply conductors on the load side of the final disconnecting means and overcurrent devices shall be permitted to be routed through a building if they are ___.

Fire pump supply conductors on the load side of the final disconnecting means and overcurrent devices shall be permitted to be routed through a building if they are ___.

• A. encased by at least 2 inches of concrete
• B. protected by a fire-rated assembly listed to achieve a minimum fire rating of 2 hours and dedicated to the fire pump circuit
• C. a listed electrical circuit protective system with a minimum 2-hour fire rating
• D. any of these

Answer: (D)

Protecting the fire pump supply conductors that run on the load side of the final disconnecting means is about ensuring the pump can operate during a fire. The code allows several ways to achieve that fire protection while a conductor passes through a building: encasing the conductors in concrete at least two inches thick; placing them within a fire-rated assembly listed to achieve a minimum two-hour rating and dedicated to the fire pump circuit; or using a listed electrical circuit protective system with a two-hour rating. Because any of these approaches provides the necessary fire resistance, all of these methods are acceptable solutions, so the correct choice is that any of these methods can be used.

Protecting the fire pump supply conductors that run on the load side of the final disconnecting means is about ensuring the pump can operate during a fire. The code allows several ways to achieve that fire protection while a conductor passes through a building: encasing the conductors in concrete at least two inches thick; placing them within a fire-rated assembly listed to achieve a minimum two-hour rating and dedicated to the fire pump circuit; or using a listed electrical circuit protective system with a two-hour rating. Because any of these approaches provides the necessary fire resistance, all of these methods are acceptable solutions, so the correct choice is that any of these methods can be used.