Fire pump consider emergency system

[hhsting]

I have plan where fire pump is fed by dedicated utility service. Would fire pump fed by dedicated utility without generator be considered emergency system?

 

[gadfly56]

I have plan where fire pump is fed by dedicated utility service. Would fire pump fed by dedicated utility without generator be considered emergency system?

A fire pump, however powered, is an emergency system.

 

[tom baker]

A good resource for fire pumps is NFPA 20, It goes hand in hand with Art 695. I suggest you get a copy and review it. Question for you, is the term Emergency even used in Art 695?

 

[tom baker]

A fire pump, however powered, is an emergency system.

Code reference on that, please

 

[gadfly56]

Code reference on that, please

Perhaps I was a little imprecise. It is a fire and life safety system, and if there was a generator it would be required to be on it. Or you can try to convince the AHJ otherwise. I'll bring popcorn. I would say that the feeder, by dint of serving the fire pump, does not become thereby an emergency system under the definition in 700.2.

 

[dkidd]

I would say that the feeder, by dint of serving the fire pump, does not become thereby an emergency system under the definition in 700.2.

OP said service.

(A) Special Conditions. Additional services shall be permitted
to supply the following:
(1) Fire pumps
(2) Emergency systems
(3) Legally required standby systems
(4) Optional standby systems
(5) Parallel power production systems
(6) Systems designed for connection to multiple sources of
supply for the purpose of enhanced reliability

 

[gadfly56]

OP said service.

(A) Special Conditions. Additional services shall be permitted
to supply the following:
(1) Fire pumps
(2) Emergency systems
(3) Legally required standby systems
(4) Optional standby systems
(5) Parallel power production systems
(6) Systems designed for connection to multiple sources of
supply for the purpose of enhanced reliability

OP "I have plan where fire pump is fed by dedicated utility service. Would fire pump fed by dedicated utility without generator be considered emergency system?"

 

[hillbilly1]

Over the years, I've had different inspectors and fire marshalls give different answers. Some, the generator only has to be large enough to start and run the fire pump. Some require load sheding. Others required no ocp at the generator, others said standard size ocp for a normal motor, not locked rotor because it was a generator, not utility. Others, generator backup not required. Most stores, but not all, that have a fire pump AND generator, also backup the firepump with it's own transferswitch and controller, but have seperate services.

 

[dkidd]

OP "I have plan where fire pump is fed by dedicated utility service. Would fire pump fed by dedicated utility without generator be considered emergency system?"

 

[hhsting]

I don’t have generator. No generator only dedicated utility service. The service feeder that go into fire pump room, fire pump controller , fire pump itself all that system would that all be emergency system?

 

[infinity]

I've seen large buildings designed with fire pumps, generators, and no generator connection to the fire pump.

 

[gadfly56]

OP "I have plan where fire pump is fed by dedicated utility service. Would fire pump fed by dedicated utility without generator be considered emergency system?"

You've completely ignored the OP's actual question, haven't you? That's the part in the second sentence.

 

[gadfly56]

I don’t have generator. No generator only dedicated utility service. The service feeder that go into fire pump room, fire pump controller , fire pump itself all that system would that all be emergency system?

The emergency system, if present, takes over when the primary power fails. For "emergency system" you can substitute the word "generator". The dedicated utility service would not, as far as I can tell, be considered an "emergency system".

 

[tom baker]

Question answered.