Fire Pump Feeder

[jbt260]

Does the feeder from the main service breaker to the fire pump controller have to be encased in concrete or have a 2-hr rating if the breaker and controller are in the same room?

 

[texie]

If you have a feeder to a FP controller the feeder will have to be 2 hour rated. If these are service conductors they have to be outside the building per the NEC definition. Concrete encasement is one option to get them outside the building. Just a fire rating alone would not be allowed if service conductors.
You say "feeder from main service breaker". A fire pump cannot be supplied from the load side of the building service. In most applications you would have a connection ahead of the service equipment and run service conductors outside the building directly to the fire pump controller in the fire pump room.
Maybe you could clarify your situation.

 

[augie47]

Does this answer your question ?
From 695.6
Exception to (A)(2)(d): The supply conductors located in the electrical equipment room where they originate and in the re pump room shall not be required to have the minimum 2-hour re separation or reresistance rating, unless otherwise required by 700.10(D) of this Code.

 

[gadfly56]

Does this answer your question ?
From 695.6
Exception to (A)(2)(d): The supply conductors located in the electrical equipment room where they originate and in the re pump room shall not be required to have the minimum 2-hour re separation or reresistance rating, unless otherwise required by 700.10(D) of this Code.

^^^^That right there.