The control building in plants and buildings shall include the following fire protection requirements:
a. Clean agent extinguishing system (for example FM200 or Inergen) shall protect the following areas:
(i) Control room area.
(ii) Rack room area.
(iii) Below control room and rack room raised floor.
b. Clean agent system shall be designed in accordance with NFPA 2001. Reference section 7.2 for additional design information.
c. Sprinkler system shall be designed in accordance with NFPA 13 and shall provide coverage throughout the building, except for the control and rack room areas.
d. Reference section for additional design information for sprinkler systems.
e. Class A:B:C portable multi-purpose fire extinguishers shall be provided throughout the building in accordance with NFPA 10, with portable CO2
extinguishers located near electronic equipment.
Fire Protection Requirements of Control Building
The control building shall include the following fire alarm and detection requirements:
a. The main fire and gas control panel (FGCP) shall be located in the main control room. Reference section 4 of the Fire and Gas Detection Standard for design information pertaining to the FGCP.
b. The main control room shall have a color graphics display system (CGDS) used for control and annunciation of the plant fire and gas detection system. See section 6.1 for design information pertaining to the CGDS.
c. Smoke detectors shall be installed throughout the control and rack room areas, including beneath the raised floor, and in the main corridors.
d. Smoke detector spacing for the control room and rack room shall not exceed 400 sq. ft. area per detector. Reference NFPA 72 to confirm any additional requirements for reduced spacing that may apply.
e. Smoke detectors are not toa be located in the direct stream of the room’s airflow, with a minimum distance of 3’-0” from any supply air diffuser.
f. Duct detectors shall be provided for each HVAC system that exceeds 2000 CFM. Duct mounted smoke detectors with sampling tubes shall be mounted in the supply duct(s) upstream of any branch connections. Duct detectors shall meet the requirements of NFPA 90A for design and installation.
Additional detectors in the return plenum or at the return opening of the HVAC unit may also be required based on criteria in NFPA 90A.
g. Manual fire alarm stations shall be located at each exit from the control building at a maximum height of 4’-6”.
h. Releasing stations shall be located at each exit from the control and rack room at a maximum height of 4’-6”.
i. Combination horn/strobe notification device(s) to be mounted in unobstructed location 8’-0” above finished floor. If three (3) or more strobe appliances are located in field of view less than 55’-0” apart, then the strobe circuit shall be synchronized.
j. The sprinkler system water flow device shall be monitored by the FGCP. The control valve for the sprinkler system shall be maintained in the locked open position.
k. All fire alarm detection input devices shall be programmed with a peculiar address point for proper identification at the main FGCP.
l. Operation of the local clean agent system shall be done by the FGCP from an integral releasing component listed and/or approved by the same fire alarm panel manufacturer.
m. Reference section 7.2, and section 4 and 5 of the Fire and Gas Detection Standard for additional information pertaining to the clean agent fire alarm and detection circuits.
n. Fire alarm system required for control building shall be designed in accordance with NFPA 72 and 2001.