Which standard governs the installation of fire alarm systems?

The standard that governs the installation of fire alarm systems is NFPA 72, also known as the National Fire Alarm and Signaling Code. This code provides the requirements for the proper installation, maintenance, and testing of fire alarm systems, ensuring that they function effectively to provide early warning in case of fire. NFPA 72 covers various aspects including system design, performance requirements, and the types of signaling systems used in fire detection and alarm applications.

Understanding the importance of NFPA 72 is crucial for technicians in ensuring both compliance and the safety of occupants in a building. It outlines essential guidelines that help in creating reliable fire detection systems, which are vital for the protection of life and property in any establishment.

The other options pertain to different standards that cover electrical installations and safety but do not specifically address the comprehensive requirements for fire alarm systems. NEC 70, for example, deals with the National Electrical Code, while NFPA 70E focuses on electrical safety in the workplace. NEC 90 is related to general electrical installations and not specifically fire alarm systems.