Tuesday, April 22, 2014

Fire Alarm Requirements for Group F Occupancy

Group F: (factory)


Systems only need to be monitored if the facility has 20 + sprinkler heads.

Group F Fire Alarm Requirements A manual fire alarm system that activates the occupant notification system (horns, strobes, sounders, speakers, chimes, mass notification, etc.) in Group F occupancies when both of the following conditions exist:      

 The facility is two or more stories in height .
       
 The facility has a combined occupant load of 500 or more persons above or below the lowest level of exit discharge.

UL 268 Automatic Smoke Detection Requirements:


System smoke detectors shall be provided for all of the following applications:  Group F if the above conditions are met)

Above control panels and power supplies
For the purpose of elevator capture
On all HVAC units over 2,000 CFM (Duct Detector)
For releasing service
Fire Smoke Dampers
Delayed egress locks

Fire Alarm Notification Requirements:


Public Mode Audibility: You must have 15 dB above average ambient sound level or 5 dB above the maximum sound level for at least 60 seconds whichever is greater.

Private Mode Audibility: You must have 10 dB above average ambient sound level or 5 dB above the maximum sound level for at least 60 seconds whichever is greater.