Detection required for foam-water preaction systems shall be in accordance with NFPA which standard?

Detection required for foam-water preaction systems shall be in accordance with NFPA which standard?

• A. NFPA 15
• B. NFPA 13
• C. NFPA 72
• D. NFPA 25

Answer: (B)

The aspect being tested is which standard governs how detection is applied to foam‑water preaction Sprinkler systems. In a foam‑water preaction setup, water is kept out of the pipes until a detection signal releases the water into the system. The requirements for how that detection is designed, integrated, and coordinated with the sprinkler system come from the general sprinkler installation standard, which covers preaction configurations, interlocks, valve release, and how detection devices trigger the water supply. That is NFPA 13. NFPA 13 sets the installation rules for sprinkler systems, including the ways preaction systems can be activated by detection and how they interface with the system’s controls. NFPA 72 would handle fire alarm signaling, not the specific design of preaction release. NFPA 15 deals with other foam system aspects, and NFPA 25 focuses on inspection and maintenance. Therefore, the detection requirements for a foam‑water preaction system are specified in NFPA 13.

The aspect being tested is which standard governs how detection is applied to foam‑water preaction Sprinkler systems. In a foam‑water preaction setup, water is kept out of the pipes until a detection signal releases the water into the system. The requirements for how that detection is designed, integrated, and coordinated with the sprinkler system come from the general sprinkler installation standard, which covers preaction configurations, interlocks, valve release, and how detection devices trigger the water supply. That is NFPA 13.

NFPA 13 sets the installation rules for sprinkler systems, including the ways preaction systems can be activated by detection and how they interface with the system’s controls. NFPA 72 would handle fire alarm signaling, not the specific design of preaction release. NFPA 15 deals with other foam system aspects, and NFPA 25 focuses on inspection and maintenance. Therefore, the detection requirements for a foam‑water preaction system are specified in NFPA 13.