The FPE has indicated that a vertical opening shall be protected by closely spaced sprinklers in combination with a draft stop installed per code. The sprinklers will be spaced 6 ft (1.83 m) on center. What is the minimum gpm discharge required per sprinkler head?
For closely spaced sprinklers protecting a vertical opening with a draft stop, a minimum discharge of 15 gpm per sprinkler head is commonly required to ensure sufficient water distribution and penetration for fire suppression within the protected area. This discharge rate provides a balance between efficiency and effectiveness in fire control.
The owner's information certificate shall contain which of the following?
The owner's information certificate should contain any special knowledge of the water supply. This information is crucial for understanding the capabilities and limitations of the water supply serving the fire protection system.
A five story building is proposed, with the ground floor being used for retail space and the upper four floors for
apartments. There is no 3-hour rated building separation between the retail and residential spaces. Which standard is
applicable for the design of the fire sprinkler system?
NFPA 13 is the applicable standard for the design of the fire sprinkler system in a mixed-use building with retail space and residential apartments without a 3-hour rated separation. NFPA 13 provides comprehensive coverage for commercial and residential spaces in multi-use buildings.
The minimum design criteria for the design of a new sprinkler system in a residential occupancy, with noncombustible concealed spaces, in an NFPA 13 based design is how many residential sprinklers and what density?
The minimum design criteria for a new sprinkler system in a residential occupancy, considering noncombustible concealed spaces and based on NFPA 13, would typically involve 4 sprinklers at a density of 0.10 gpm/ft. This provides a baseline level of fire protection suitable for residential settings.
Based on an existing hydraulic placard located at the sprinkler system riser, the design of the sprinkler system is based on a density of 0.495 gpm/ft2 (20.1 mm/min) over an area of 2000 ft2 (186 m2). Sprinklers in cabinet are 286 degrees. Which of the following hazards can be protected with this design criteria?
Group A plastics, even when stored on racks, present a high challenge to sprinkler systems due to their high heat release rates. The given design criteria, especially the density of 0.495 gpm/ft over an area of 2000 ft, might be suitable for controlling fires in Group A plastic commodities stored to the specified height, considering the use of high-temperature rated sprinklers (286 degrees) which are typically used in high-challenge fire scenarios.
