Fire Pump Load

[anbm]

Fire pump is fed from same utility transformer that also power building's main gear (by tapping on xfmr secondary and ahead of building main circuit breaker), when I calculate total load and send to power company per their request, should I include both building and fire pump loads or only building load? My thought fire pump runs when building is on fire?

 

[gadfly56]

Fire pump is fed from same utility transformer that also power building's main gear (by tapping on xfmr secondary and ahead of building main circuit breaker), when I calculate total load and send to power company per their request, should I include both building and fire pump loads or only building load? My thought fire pump runs when building is on fire?

You should assume that the building is running as normal when the fire pump kicks on. Every 6 months to a year the fire protection company is going to do a "churn" test, and they may have monitor nozzles set up to test every 5 years that the pump is putting out what it's supposed to.

 

[tom baker]

Where I worked fire pump was run every week for 30 minutes, we recirced water to reservoir. Once a year we did a flow test with nozzles and pitot tube. Requirements are in NFPA 20
The fire pump would be included with building load