Permitting is the cutoff. Here the regulations state replacement for maintenance does not require any AHJ involvement. If you change 1 item with a different item, then we are required to submit. If it is like for like, that is not a repair. R/ Matt
Matthew J. Willis, CET Automatic Fire Sprinklers Norred Fire Systems L.L.C. 318-387-1134 Voice 318-816-1087 Mobile 318-387-1163 Facsimile [email protected] > >-----Original Message----- > >From: [email protected] [mailto:sprinklerforum- > >[email protected]] On Behalf Of Todd Williams > >Sent: Wednesday, January 12, 2011 10:44 AM > >To: [email protected] > >Subject: Re: Hydraulic Calcs > > > >So where is the cut-off between repair and new installation? If you > >replace all of the existing pipe, fittings, sprinklers and hangers, > >etc. with exact new duplicates in an existing 30,000 building, is > >that a repair? If you replace some black steel pipe with galvanized, > >does that now become a new installation? > > > > > >At 11:32 AM 1/12/2011, you wrote: > >>NFPA 25 does not require verification for repair work (provided you > >>are replacing like with like). Verification of adequacy per > >>specification is a different story that may have nothing to do with > >>what is required by the standards. Some reasons can be less than > >>honorable. > >> > >>Roland > >> > >> > >>On Jan 12, 2011, at 8:14 AM, Doug Hicks wrote: > >> > >>>The dry pipe protects the overhang of a walkway, no attic. the > >>>original install is about 20 years old. About 6 years ago, 2 more > >>>low hazard buildings were built and the dry pipe system was > >>>extended. The 2 new buildings are each protected by a separate wet > >>>system. All the fire water comes from the original street > >>>connection. The extension increased the protected area about 35-40 > >>>%. I assume hydraulic Calcs were done by a licensed person. I tried > >>>to type that with a straight face. No increase in pipe sizes were > >>>done. I do not know what edition of 13 was used for any of the > >>>sprinkler work. I doubt that any water supply information is on > >>>file anyplace. So if Calcs are needed, I will have to have a > >>>qualified person do that for me. My local AHJ allows do whatever I > >>>want. So the decision will be up to the client and his engineer. > >>> > >>>I will print this out, we have a meeting at 9:00 AM. After the > >>>meeting I am sure I will have more questions. > >> > >>_______________________________________________ > >>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:Sprinklerforum- > >[email protected] > >>(Put the word unsubscribe in the subject field) > > > >Todd G. Williams, PE > >Fire Protection Design/Consulting > >Stonington, CT > >860.535.2080 > >www.fpdc.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] > >(Put the word unsubscribe in the subject field) > >No virus found in this incoming message. > >Checked by AVG - www.avg.com > >Version: 9.0.872 / Virus Database: 271.1.1/3374 - Release Date: 01/12/11 > >01:38:00 _______________________________________________ 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)
