Addressing Craig's mention of perceptions. There is a horrendous fear of water damage among most (and especially electrical) engineers. I once had an electrical engineer tell me you couldn't sprinkler a hydro-electric plant. First because it was too full of electrical equipment and secondly (and more humorously) because there wasn't enough water. When I pointed out that he had the second biggest river in North America backed up against one side of his building he told me that you couldn't use that water. I tried to find one of those tables like in 13D as to where fires most commonly start in commercial buildings but ran out of time. My gut tells me electrical rooms could be a prime location and electrical vaults (where the transformers are) also seem to be culprits. I just don't have any numbers to back up MY perceptions so will not try to enforce them.
On Tue, Jan 5, 2010 at 7:26 AM, <[email protected]> wrote: > It makes no difference whether the line passes through the room or comes in > and stops as long as you are in the allowable space as defined within the > section of the electrical code. People are extrapolating limitations based > on their perception not on code verbiage. We've had several detailed > discussions on this matter. > > > Craig L. Prahl, CET > Fire Protection Specialist > Mechanical Department > CH2MHILL > Lockwood Greene > 1500 International Drive > PO Box 491, 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 > [email protected] > Sent: Tuesday, January 05, 2010 9:44 AM > To: [email protected] > Subject: Re: Electrical Rooms > > In the handbook of NFPA 72 they show a figure where the sprinkler pipe ends > in the electrical room , but it does not go thru the room. > mario berrios > > > -----Original Message----- > From: George Church <[email protected]> > To: [email protected] > Sent: Mon, Jan 4, 2010 11:54 am > Subject: RE: Electrical Rooms > > > Remember they're the ones finding the invisible fault with you crossing > an > electrical room with your piping. > > So that you are sure you comply FULLY with the applicable code > preventing > you from doing this (ITHO) ask them to provide the applicable code > reference. > > glc > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Eladio N. > Alvarado > Sent: Monday, January 04, 2010 11:38 AM > To: [email protected] > Subject: RE: Electrical Rooms > > Eric: > > I understand and agree with you, but the EOR insist that the 4" main to > the > FD Connection, which by the way is dry (check valve in another space) > should > not cross the room since is in violation of NEC, according to their > interpretation. I have already recited chapter and verse of the code > requirements and exceptions, but it doesn't seem to sink in. There may > other > issues that affect their perception or attitude, but I'm kind stuck, and > would really like to find irrefutable proof to my point. > > Eladio Alvarado > AFSDII > > -----Original Message----- > From: [email protected] > [mailto:[email protected]]on Behalf Of Eric > Tysinger > Sent: Monday, January 04, 2010 10:37 AM > To: [email protected] > Subject: RE: Electrical Rooms > > To my knowledge, there is nothing from NFPA 13 that addresses this. The > clearance requirements are found in the NEC, and there is nothing in > the NEC > that prohibits piping from entering and exiting the electrical room. > Don't > forget there are rules in NFPA 13 that allow the sprinkler to be > omitted. I > try to use these to avoid the questions all together. > > Thanks, > Eric Tysinger CET > NICET 108988 > Designer > Wayne Automatic Fire Sprinklers, Inc. > 4370 Motorsport Drive > Concord, NC 28027 > p: (704)782-3032 > f: (704)795-6838 > C: (239)633-9703 > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Eladio N. > Alvarado > Sent: Monday, January 04, 2010 9:31 AM > To: [email protected] > Subject: Electrical Rooms > > Happy New Year to all!! > > I know that we have previously discussed Electrical Equipment rooms, and > that the general consensus is that there is nothing in NFPA 13 that > prohibits sprinkler pipe, be it mains and/or branch lines from entering > the > room, as long as it doesn't violate the require perimeter area of the > particular equipment. Now my question is; is there a technical > interpretation from NFPA 13 that explains this, and that someone in the > forum may be aware of? I could really use this info to nail this subject > closed with the EOR. > > Thanks in advanced, > > Eladio Alvarado > AFSDII > > > _______________________________________________ > 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) > > _______________________________________________ > 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) > -- Ron Greenman Instructor Fire Protection Engineering Bates Technical College Tacoma, WA Member: SFPE, ASCET, NFPA, AFSA, NFSA AFAA, WSAFM _______________________________________________ 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)
