Which NFPA standard covers the installation of sprinkler systems?

• A. NFPA 72
• B. NFPA 25
• C. NFPA 101
• D. NFPA 13

Answer: (D)

The main concept is identifying which NFPA standard governs how sprinkler systems are installed. That is the Standard for the Installation of Sprinkler Systems. It provides the requirements for designing and installing water-based sprinkler systems, including system types (wet, dry, deluge, pre-action), sprinkler head placement, pipe sizing and layout, materials, installation practices, seismic/bracing, and the testing and commissioning steps. This makes it the authority on installation work.

NFPA 72 covers fire alarm systems and their signaling, not sprinkler installation. NFPA 25 deals with inspection, testing, and maintenance of water-based sprinkler systems after they are installed. NFPA 101, the Life Safety Code, addresses occupant safety and building requirements and references sprinklers in some life-safety contexts but does not detail installation procedures.