The generic obstruction language all has to with pattern development rather than shadowing. The stuff about tables is there and you could by extension suggest that if we're worried about long tables his chemical vessels might also be a problem. I can copy if you can use it but it's a long passage and I don't like copying since I have to look at the keyboard to punch the right buttons.
On Wed, Feb 9, 2011 at 7:04 AM, <[email protected]> wrote: > Thanks Ron and Scott. The provision for sprinklers below a mezzanine/deck > looks pretty obvious as far back as the '55 edition. > > The requirement for sprinklers blow other obstructions which were not defined > specifically may be more difficult upon which to render an opinion. > > Was there any other general wording related to "obstructions to discharge > over 4ft in width"? > > > Craig L. Prahl, CET > Fire Protection > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of Scott A. > Futrell > Sent: Wednesday, February 09, 2011 9:59 AM > To: [email protected] > Subject: RE: How far back in NFPA 13 - Obstructions > > Craig, > > "NFPA 13, 1955, 715. (a) Decks. Sprinklers should be installed under decks > and galleries unless they do not exceed 4 feet in width, with at least 6 > inches clearance from the wall or partition and with arrangements to keep all > stock a similar distance from the wall or partition. See section 201." > Inside front cover in definitions: "The word "should" indicates advisory > provisions." > > I don't see anything else about obstructions, but there are actually several > pages in the location and spacing chapter. > > Let me know if you need more. > > Scott Futrell > > (763) 425-1001 Office > (612) 759-5556 Cell > > -----Original Message----- > From: [email protected] > [mailto:[email protected]] On Behalf Of > [email protected] > Sent: Wednesday, February 09, 2011 7:58 AM > To: [email protected] > Subject: How far back in NFPA 13 - Obstructions > > Got an issue with a client. Industrial chemical processing building, built > circa 1940's give or take. Building has sprinklers. Sometime possibly in > the 60's -70's an access platform was built (20ft by 40ft+/-) and no > sprinklers were provided below. Also some vessels were not provided with > sprinklers below. > > Here's the question to whoever has the oldest edition of NFPA 13, what > edition do you have and does it address sprinklers below obstructions? What > is the specific wording? > > If you can PDF that page with the edition and e-mail it to me that would be > most excellent! > > Thanks, > > Craig L. Prahl, CET > Fire Protection > CH2MHILL > Lockwood Greene > 1500 International Drive > Spartanburg, SC 29304-0491 > Direct - 864.599.4102 > Fax - 864.599.8439 > CH2MHILL Extension 74102 > [email protected] > > > _______________________________________________ > 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 Technology Bates Technical College 1101 So. Yakima Ave. Tacoma, WA 98405 [email protected] http://www.bates.ctc.edu/fireprotection/ 253.680.7346 253.576.9700 (cell) Member: ASEE, SFPE, ASCET, NFPA, AFSA, NFSA, AFAA, NIBS, WSAFM, WFC They are happy men whose natures sort with their vocations. -Francis Bacon, essayist, philosopher, and statesman (1561-1626) _______________________________________________ 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)
