Mine were all 2 miles or greater
At 02:06 PM 8/26/2009, you wrote: >We did one last year since the nearest 3-phase was down at the bottom of the >mountain and it was $150k to bring it up the hill. So we were limited to a >little- 10 or 15 sounds right-HP single phase as our supply, squeeked it >out. But you see why we didn't really have the option to go 3-phase, next >option economically was a diesel. > >glc > >-----Original Message----- >From: [email protected] >[mailto:[email protected]] On Behalf Of Todd Williams >Sent: Wednesday, August 26, 2009 1:34 PM >To: [email protected] >Subject: RE: 3 from 1 > >The biggest single phase fire pump available has a 15 hp motor. Have >done 3 of them and the power companies have been OK with it. > > >At 12:33 PM 8/26/2009, you wrote: > >Most utility companies have a maximum Hp they allow for single Ph power, > >locally it is max 10 Hp. Not much advantage to a phase converter if your > >only allowed 10Hp of single phase to supply it. I don't think a converter > >can give you "soft start" capability. > > > >Thom McMahon, SET > >Firetech, Inc. > >2560 Copper Ridge Dr > >P.O. Box 882136 > >Steamboat Springs, CO 80488 > >Tel: 970-879-7952 > >Fax: 970-879-7926 > > > > > > > >-----Original Message----- > >From: [email protected] > >[mailto:[email protected]] On Behalf Of > >[email protected] > >Sent: Wednesday, August 26, 2009 10:30 AM > >To: [email protected] > >Subject: Re: 3 from 1 > > > > > >Also, the 2010 edition of NFPA 20 will explicitly state that you cannot > >convert from single to three phase. (according to an NFSA bulletin the > >committee has already agreed on this). > > > > > > > >Forest Wilson > > > >Cherokee Fire > > > > > >-----Original Message----- > >From: Ron Greenman <[email protected]> > >To: [email protected] > >Sent: Wed, Aug 26, 2009 12:26 pm > >Subject: Re: 3 from 1 > > > > > > > > > >Todd, > > > >20-A.9.2.2 in the 2007 edition. Not prohibited but not recommended. > > > >On Wed, Aug 26, 2009 at 9:12 AM, Todd Williams<[email protected]> wrote: > > > You may need to have an electrical engineer review the installation. > > > I did a single phase pump a few years ago and ran into electrical > > > problems (for which I was blamed). Hired an EE and he went through and > > > found the electrician messed up the installation from the service > > > right through to the pump as well as the generator feed and > > > connection. Didn't have a converter, but did have two transformers > > > because the electrician told us the wrong voltage (208 v. 240 - for > > > which I was also blamed). > > > > > > BTW, what section of the Code says Phase Converters are not allowed? > > > I couldn't find that at the time, but had rejected the idea anyway. > > > > > > > > > > > > > > > At 11:58 AM 8/26/2009, you wrote: > > >>I need some education of Phase Converters. > > >> > > >> > > >> > > >>A 300 gpm Fire Pump (Tank fed), is supplied by one of these things. > > >>Single phase only is available, so one of these has been installed to >make > >it work. > > >>Installed in '06-07ish, just replaced main board in controller. I was > > >>there to do test following part replace. 240vac, dropped to 106-108 > > >>across the 3 as indicated on panel. Middle leg showed 422vac in event >log, > >as high peak. > > >>When started, pump shaft (vertical) jumped up and down repeatedly. We > > >>red tagged it and are waiting on word from electricians. Pump Motor > > >>checked out fine. I know they are not allowed, but it was approved, so., >I > >just test it. > > >> > > >> > > >> > > >>R/ > > >> > > >>Matt > > >> > > >> > > >> > > >>Matthew J. Willis, CET > > >> > > >>Automatic Fire Sprinklers > > >> > > >>Norred Fire Systems L.L.C. > > >> > > >>318-387-1134 Voice > > >> > > >>318-387-1163 Facsimile > > >> > > >>[email protected] > > >> > > >> > > >> > > >>_______________________________________________ > > >>Sprinklerforum mailing list > > >>[email protected] > > >>http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > > Todd G. Williams, PE > > > Fire Protection Design/Consulting > > > Stonington, Connecticut > > > www.fpdc.com > > > 860.535.2080 > > > ______________________ > >_________________________ > > > Sprinklerforum mailing list > > > [email protected] > > > http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > > > > > > > > >-- > >Ron Greenman > >Instructor > >Fire Protection Engineering > >Bates Technical College > >Tacoma, WA > > > >Member: > >SFPE, ASCET, NFPA, AFSA, NFSA AFAA > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > > > >_______________________________________________ > >Sprinklerforum mailing list > >[email protected] > >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >Todd G. Williams, PE >Fire Protection Design/Consulting >Stonington, Connecticut >www.fpdc.com >860.535.2080 >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum > >_______________________________________________ >Sprinklerforum mailing list >[email protected] >http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum Todd G. Williams, PE Fire Protection Design/Consulting Stonington, Connecticut www.fpdc.com 860.535.2080 _______________________________________________ Sprinklerforum mailing list [email protected] http://fireball.firesprinkler.org/mailman/listinfo/sprinklerforum
