When determining tank size on a property supplied only from a tank is the sprinkler demand added to fire flow as a cumulative fire flow or is it considered part of the fire flow? And if the former does the hose stream need to be added or is it negated by the fact that the tank is already supplying the hydrants? Example: 30,000 sqft fully sprinklered building requires a fire flow (reduced 75% then rounded up to the minimum) of 1500 gpm for 2 hours requiring a 180,000 gallon tank. The sprinkler demand is 650 gpm plus a 250 gpm hose stream for one hour for a total of 54,000 gallons. Is the 54K gallons included in whole or in part with the fire flow storage or is it added? Thanks.
-- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum For Technical Assistance, send an email to: [email protected] To Unsubscribe, send an email to:[email protected] (Put the word unsubscribe in the subject field)
