Todd , Are you saying the engineer has seen and has read these sections of 13R and still doesn't understand the requirements ? If so , you may have to go over his head to a higher authority or say a prayer and try to appease him as best you can.
Good Luck , Lamar Vaughn , SET ---- Todd Williams <[email protected]> wrote: > Discharge - 6.7.1.1.1, Coverage - 6.7.1.3.1. NFPA 13R (2002) > > > > At 08:23 AM 5/19/2010, you wrote: > >I'd ask him to please, for your edification, cite the sections of > >the NFPA Standard where he derived his specification data. > > > >I guess he was looking at sprinkler data sheets and when it didn't > >say that the sprinkler is designed for 0.10 or whatever gpm/sq. ft > >he thinks it falls into that category? > > > > > >Craig L. Prahl, CET > >Fire Protection Specialist > >Mechanical Department > >CH2MHILL > >Lockwood Greene > >1500 International Drive > >Spartanburg, SC 29304-0491 > >Direct - 864.599.4102 > >Fax - 864.599.8439 > >[email protected] > >http://www.ch2m.com > > > >-----Original Message----- > >From: [email protected] > >[mailto:[email protected]] On Behalf Of Todd Williams > >Sent: Wednesday, May 19, 2010 6:11 AM > >To: [email protected] > >Subject: 13R sprinklers > > > >I am working on a project with a rather ignorant engineer who will > >not accept listed flow requirements for residential sprinklers. He is > >insisting on using the 12 x 12 spacing, 13 gpm for multiple sprinkler > >flow and 18 for single sprinkler flow (we have to calculate both). My > >question may be one of semantics, but this is what the engineer is > >hanging everything on. Both the above spacing and discharge > >requirements are under sections entitled "Sprinklers That Have Not > >Been Listed with Specific (Discharge/Coverage) Criteria". Since > >virtually all of the residential sprinklers I am aware of have > >specific design and coverage criteria, am I to assume based on the > >wording that sprinklers with specific criteria cannot be used under > >this section? If so, are there any sprinklers without specific > >criteria currently on the market? > > > >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) > >_______________________________________________ > >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) > > 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) _______________________________________________ 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)
