Smoke detector placement nfpa

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Installing and maintaining smoke alarms - NFPA

Interconnected smoke alarms increase safety. In a Consumer Product Safety Commission (CPSC) survey of households with any fires, including fires in which the fire department was not called, interconnected smoke alarms were more likely to operate and alert occupants to a fire. 1 People may know about a fire without hearing a smoke alarm. When smoke alarms … 

Smoke Detector Spacing for High Ceiling Spaces - …

—— Page iii —— FOREWORD NFPA 72, National Fire Alarm and Signaling Code, does not address spacing consideration for smoke detection based on ceiling heights. However, there is a table that allows for reduction of spacing for heat detection. 

Home Smoke Detector Placement Guide - Firefighter …

NFPA recommends placing a smoke detector either on the ceiling or high on a sidewall. The current recommendation is that you place your smoke detectors within 12 inches (30cm) of the roof [2]. Some ceilings are slanted. In this case, NFPA states to place the smoke detector within 12 inches of the roof’s highest point. 

Fire Alarm Detector Layout - NFPA 72 Spacing Rules

Feb 15, 2019 · NFPA 72 Detector Spacing Rules. Using the theorem, we find that the farthest spot on the ceiling is approximately 20.61 feet away from the closest heat detector in our very narrow tunnel. According to, we are code complaint because that distance is less than the heat detector’s listed 30-foot spacing x 0.7 (21 feet). 

Location and Installation of Detectors in Air Duct Systems

Jul 03, 2018 · NFPA 72 gives us the guidelines as to how to provide/install smoke detectors in ducts. First of all, and above all else, the detector must be listed for being used in air duct system (NFPA 72 When installing duct-type smoke detectors, they can be installed as described below: (1) Rigid mounting within the duct 

NFPA 72 smoke detection placement | The Building Code Forum

Oct 01, 2011 · For simplicity, only those types of alarms or detectors recognized by Chapter 29 (e.g., smoke and heat alarms or smoke and heat detectors) are discussed. Specific mounting locations of fire-warning equipment in unoccupied or architecturally unique areas (e.g., as in attics or in rooms with high ceilings) should be evaluated by a qualified 

Kidde 21007624 AC Photoelectric Smoke and Carbon …

The interconnect system must not exceed the NFPA (National Fire Protection Association) limit of 18 initiating devices, of which 12 can be smoke alarms. With 18 initiating devices (smoke, heat, CO, etc), interconnected, it is still possible to interconnect 6 strobe lights and or relay modules. 


May 31, 2007 · All smoke alarms shall be listed in accordance with UL 217 and installed in accordance with the provisions of this code and the household fire warning equipment provisions of NFPA 72. Household fire alarm systems installed in accordance with NFPA 72 that include smoke alarms, or a combination of smoke detector and audible notification device