Which standard addresses the requirements for interior cabling and interconnections in public fire alarm reporting systems?

• A. NFPA 25
• B. NFPA 101
• C. NFPA 72
• D. NFPA 70

Answer: (D)

Interior cabling and interconnections for a fire alarm reporting system are governed by the electrical installation standard. The National Electrical Code (NFPA 70) provides the rules for wiring methods, conductor types, installation practices, and protection for those circuits, ensuring power and signaling lines within a building are installed safely and reliably. NFPA 72 focuses on how the fire alarm system operates, signals, and interconnects at the system level, rather than the physical wiring inside the building. NFPA 25 covers sprinkler system testing, and NFPA 101 deals with life-safety provisions that don’t specify electrical cabling details. So, for interior cabling and interconnections, NFPA 70 is the best fit.