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NFPA72 smoke detector spacing reduction dut to heigth
Jan 10, 2002 · Hello to every body. Reading NFPA72 2002 edition, I cannot find to reference for the spacing reduction for spot tipe smoke detectors due to ceiling height. I´ve been told to use …
spacing reduction for cross zoned detectors on preact sprinkler …
Dec 4, 2002 · Most will forget to consider the air changes in a room with respect to reduced spacing of smoke detectors. The manufacture of the releasing control panel also has …
Detector Placement in Fire Suppression System 1 - Eng-Tips
Jun 16, 2021 · We are using NFPA 72 as the installation standard, however smoke detector and heat detector have different spacings. For example, spacing of smoke detector is A, and …
Smoke detector spacing with low height ceiling and beams.
Jan 10, 2002 · 17.6.3.3.1 Spacing. 17.6.3.3.1.1 A ceiling shall be treated as a smooth ceiling if the beams project no more than 4 in. (100 mm) below the ceiling. 17.6.3.3.1.2 Where the beams …
BEAM TYPE SMOKE DETECTOR - NFPA (fire) Code Issues
Jul 6, 2004 · On smooth ceilings, a spacing of not more than 60 ft (18.3 m) between projected beams and not more than one-half that spacing between a projected beam and a sidewall …
Smoke detectors in beam pockets - NFPA (fire) Code Issues
Nov 27, 2011 · Where beam spacing is less than 40 percent of the ceiling height (0.4 H), the following shall be permitted for spot detectors: i. Smooth ceiling spacing in the direction …
curved ceiling spacing - NFPA (fire) Code Issues - Eng-Tips
Aug 18, 2005 · 1. An area measures 12 feet across at floor level 2. Ceiling is curved/ barrel shape/ half moon 3. the arc of the curve measures 22 feet per nfpa 13 you measure spacing along the …
Elevator Shaft Smoke Detectors - NFPA (fire) Code Issues
Jul 10, 2013 · A smoke detector is required in the hoistway, IF there is a sprinkler head in the hoistway. BUT, per the 2007 edition of NFPA 13, you can OMIT the hoistway sprinkler under …
Elevator Machine Room - NFPA (fire) Code Issues - Eng-Tips
Jan 25, 2002 · (2)The elevator machine room, machine room, machinery space, control room, control space, or hoistway of traction elevators are protected by smoke detectors, or other …
Sprinkler proximity to AC diffuser etc - NFPA (fire) Code Issues
Jun 24, 2010 · I know there is a minimum spacing for smoke detectors from diffusers (so the air flow doesn't affect their opperation), but I've never heard of a similar requirement for sprinklers. …
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