Maybe I shouldn't have confused the question with the reality check. If there is no water on site, and the IFC fireflow does not have to be satisfied, will water storage for sprinkler demand plus 250 gpm for a total of 60 to 90 minutes satisfy the intent of NFPA?
Thanks, Tony -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Roland Huggins Sent: April 8, 2010 2:36 PM To: [email protected] Subject: Re: Water Supply WHat does when the FD draws water or how much have do with this discussion? You are confusing reality with the explicit methodology of 13. The standard provides repeatability - period. The only thing it has to do with reality is THAT IT WORKS. This applies not just to this question but basically EVERYTHING regarding hydraulic design. Maybe it falls under quantum mechanics. Roland On May 9, 2010, at 12:10 PM, A.P.Silva wrote: > > When sizing a water tank, > > OH design requires 60 to 90 minute water supply for sprinklers > > Is 250 gpm outside hose allowance also 60 to 90 minutes? > > It seems to me they are both independent requirements. There will be a > time lag between the two and the fire department could be drawing out > more than the 250 gpm, for a longer or shorter duration. The question > is will the intent of the code be satisfied if the total water > requirements (sprinklers and hose allowances) be supplied for 60 to 90 > minutes? > > Tony > > _______________________________________________ > 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) > _______________________________________________ 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) _______________________________________________ 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)
