A point to be mentioned: a fire pump is only supplied by normal power and if desired or required, "standby" power. "Emergency" power is different. "Shedding" of power is fully allowed with standby power.
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On Fri, Aug 27, 2021 at 11:41 AM David Williams via Sprinklerforum < [email protected]> wrote: > Or you “shed” the refrigeration from the generator sizing during a fire > event. That much ice cream will stay cold for the period of time the fire > pump needs the power. > > David Toshio Williams, PE*, FPE > (*Registered in MN, WI, MI, IA, IL, IN, ND, VT) > (218) 279-2436 direct | (218) 310-2446 cell > LHB, Inc. | PERFORMANCE DRIVEN DESIGN > > > From: Sprinklerforum <[email protected]> on > behalf of Steve Leyton via Sprinklerforum < > [email protected]> > Date: Friday, August 27, 2021 at 10:25 AM > To: Mark Phillips <[email protected]>, Richard Mote < > [email protected]>, [email protected] < > [email protected]> > Cc: Steve Leyton <[email protected]>, Richard Mote < > [email protected]> > Subject: RE: Transfer Switches > It's ice cream; depending on local health code requirements, a "save" > might still be a profound or total loss. > > After a long time in this racket, I find myself falling back more and more > on Chapter 1 of all the standards wherein we find the intent statement, > which is to provide a "reasonable" level of protection against fire. If > they want/need a generator to keep ice cream from melting in this fully > sprinklered building, then plug one in. But it's also fair to undertake a > cost/benefit analysis if backing up the pump means doubling the cost of the > gen set and if the owner doesn't see the value, so be it. Keeping in mind > that at no point in this discussion has there been any allusion to the > power supply not meeting the reliability requirements of NFPA 20. > > SL > > > From: Mark Phillips [mailto:[email protected]] > Sent: Friday, August 27, 2021 3:48 AM > To: Richard Mote <[email protected]>; [email protected] > Cc: Richard Mote <[email protected]>; Steve Leyton < > [email protected]> > Subject: Re: Transfer Switches > > Not a code requirement but less expensive that complete product loss. > > > > Sent from my mobile device > Please excuse spelling, grammar, and auto correction. > > Mark Phillips > Branch Manager > Fire Sprinkler Design, Install, Inspections > Service, Backflows, Fire Alarm Inspections > > 832-101 Purser Drive > Raleigh NC 27603 > Phone: 919-779-4010 > Fax : 919-779-4014 > Cell : 919-268-7587 > Email : [email protected]<mailto:[email protected]> > Web : www.pyebarkerfire.com<http://www.pyebarkerfire.com< > http://www.pyebarkerfire.com%3chttp:/www.pyebarkerfire.com>> > > ________________________________ > From: Sprinklerforum <[email protected] > <mailto:[email protected]>> on behalf of > Richard Mote via Sprinklerforum <[email protected] > <mailto:[email protected]>> > Sent: Thursday, August 26, 2021 8:24:16 PM > To: [email protected]<mailto: > [email protected]> < > [email protected]<mailto: > [email protected]>> > Cc: Richard Mote <[email protected]<mailto:[email protected]>>; > [email protected]<mailto:[email protected]> < > [email protected]<mailto:[email protected]>> > Subject: Re: Transfer Switches > > [EXTERNAL] > > This is a building within a building a 60,000 sq.ft. steel building with a > 27,700 sq.ft. freezer. The emergence generator is to protect several tons > of ice cream from having a melt down. If they size the generator to handle > the fire 150 hp fire pump load it will double the price he says. > > > -----Original Message----- > From: Steve Leyton via Sprinklerforum < > [email protected]<mailto: > [email protected]>> > To: Richard Mote <[email protected]<mailto:[email protected]>>; > [email protected]<mailto: > [email protected]> < > [email protected]<mailto: > [email protected]>> > Cc: Steve Leyton <[email protected]<mailto: > [email protected]>> > Sent: Thu, Aug 26, 2021 8:15 pm > Subject: RE: Transfer Switches > > To paraphrase, you're asking if it's required to connect a gen set that is > installed in a building that isn't a high-rise building or some other > essential facility where there is a code requirement for emergency power, > correct? In other words, a voluntary generator with regard to the code set. > > Assuming that's the case and there isn't a formal interpretation from the > AHJ regarding the reliability of the power supply, I would say no. The > code will require an emergency power supply or not. If one is required, > then the FLS systems have to be on that, but if the secondary isn't > required by code then it's up to the owner (and let's face it, that's > certainly a good idea if the generator is sized for the fire pump). So > there MAY be something in the code that requires this, but only if it's a > mandatory generator. > > > Steve Leyton > > -----Original Message----- > From: Sprinklerforum [mailto: > [email protected]] On Behalf Of Richard Mote > via Sprinklerforum > Sent: Thursday, August 26, 2021 5:04 PM > To: [email protected]<mailto: > [email protected]> > Cc: Richard Mote <[email protected]<mailto:[email protected]>> > Subject: Transfer Switches > > Got a email from a customer with the following question. I'm on the road > with no access to my books.If an emergency generator is installed on a > building, is there anything in the codes that would require it to be > connected to the fire pump. > RichardL. Mote CET > > Rimrock Design Services,LLC > > PO Box 36 > Middleburg, PA 17842 > > Mobile 570-541-2685 > > EMAIL [email protected]<mailto: > [email protected]> > > > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto: > [email protected]> > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto: > [email protected]> > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected]<mailto: > [email protected]> > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ > Sprinklerforum mailing list > [email protected] > > http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org > _______________________________________________ Sprinklerforum mailing list [email protected] http://lists.firesprinkler.org/listinfo.cgi/sprinklerforum-firesprinkler.org
