How is he keeping the preaction valve tripped? Is the panel in alarm with the solenoid energized? The solenoid and/or panel may not be able to handle continuous energization/alarm. Also what if someone resets the panel?
Regards, Mike Henke Potter Electric -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of George Church Sent: Friday, February 12, 2010 10:58 AM To: [email protected] Subject: RE: Impaired preaction Yup=- And just plug it with a mech tee when repairs to the detection system are completed. -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Ed Vining Sent: Friday, February 12, 2010 11:27 AM To: [email protected] Subject: Re: Impaired preaction How will they get an alarm if a sprinkler operates. They could install a waterflow indicator, but it would have to be removed if they ever use the preaction valve again. Ed Vining On Fri, Feb 12, 2010 at 8:01 AM, Steve Leyton <[email protected]>wrote: > If it's a library, unless portions of the system are inappropriately > exposed to sub-40 deg. temps, there isn't a code requirement that a > library be protected by a particular KIND of system, just that it be per > the referenced standard (13). Which gives the designer a choice, that > was likely exercised to mitigate the chance of a false discharge > irreparably damaging books, archival collections, etc. And likely > specified that way. I doubt you'll find a code violation, but the > first cost of preaction was undertaken for a reason, so it's the > library's decision to put it back into preaction service or not. > > Steve Leyton > Protection Design & Consulting > San Diego, CA > > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Ford, > Charles > Sent: Friday, February 12, 2010 7:55 AM > To: [email protected] > Subject: RE: Impaired preaction > > We have a customer whose pre-action system for a library is impaired due > to electrical/ detection > problems. He has had a contractor trip it into a wet pipe system. We are > looking for a code reference > prohibiting this kind of "repair". Is this possibly just an AHJ > decision? > Any suggestions? > > C. Burton Ford > Designer- NICET Certified: Fire Alarm, > Special Hazards, Sprinkler Design > &Sprinkler Inspections > NFPA CFPS > Cintas Fire Protection-D-47 > Warminster, PA 18974 > Phone 267-487-1000 > Fax 267-487-1010 > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On > Behalf Of Richardson, R > Sent: Friday, February 12, 2010 10:37 AM > To: [email protected] > Subject: RE: Flexible Pipe > > The engineer quite likely means the use of high pressure steel braided > rubber hose, or something > similar. > > We have approved high pressure steel braided rubber hose for these > situations often, as long as they > installation is such that the hose remain submerged. Not a whole lot of > better options that we are > aware of at this point. > > Rich Richardson > Seattle Fire Department > > > > > Yeah you read this right. > > > > I'm reviewing a pacakge and the EOR has called out for flexible pipe > at a > > couple of areas where he thinks they can't use hard pipe to make the > bends, > > plus he is wanting some allowance for movement. This is on a pier. > > > > So I've hunted even though in all my years dabbling in this I can't > recall > > such an animal. Flexible connections and flexible drops are one thing > but a > > 10-20 ft section of "flexible" pipe? > > > > Anyone ever heard or seen such a thing? > > > > He's not called out any manufacturer and is out of town right now so I > can't > > ask what he had in mind. > > > > It's not a sprinkler system, it's a 4" manual, dry standpipe line > along the > > pier. > > > > > > CH2MHILL/SPB > > Craig Prahl > > 864-599-4102 > > _______________________________________________ > > 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]<to%3ASprinklerforum-request@ fire sprinkler.org> > > (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]<to%3ASprinklerforum-request@ fire sprinkler.org> > > (Put the word unsubscribe in the subject field) > > > > > > -- > Ron Greenman, CET, FPE > Instructor > Fire Protection Engineering > Bates Technical College > Tacoma, WA > > Member: > SFPE, ASCET, NFPA, AFSA, NFSA AFAA, NIBS, WSAFM, WFC > _______________________________________________ > 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]<to%3ASprinklerforum-request@ fire sprinkler.org> > (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]<to%3ASprinklerforum-request@ fire sprinkler.org> > (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]<to%3ASprinklerforum-request@ fire sprinkler.org> > (Put the word unsubscribe in the subject field) > > > > This e-mail transmission contains information that is intended to be > confidential and privileged. 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After replying, please delete > and otherwise erase it and any attachments from your computer system. > Your assistance in correcting this error is appreciated. > _______________________________________________ > 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]<to%3ASprinklerforum-request@ fire sprinkler.org> > (Put the word unsubscribe in the subject field) > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 4861 (20100212) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > > > __________ Information from ESET NOD32 Antivirus, version of virus > signature database 4861 (20100212) __________ > > The message was checked by ESET NOD32 Antivirus. > > http://www.eset.com > > _______________________________________________ > 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]<to%3ASprinklerforum-request@ fire sprinkler.org> > (Put the word unsubscribe in the subject field) > -- Ed Vining 4819 John Muir Rd Martinez CA 94553 925-228-8792 _______________________________________________ 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)
