Why do we test fire alarm systems? To ensure that the system providing early-warning of fire to the occupants operates reliably during a fire. Once technicians have installed or repaired a fire alarm system, testing that system represents one of the most important things that needs to happen. NFPA 72~R National Fire Alarm and Signaling Code, provides specific reasons why a building owner must test a fire alarm system after an initial installation or when changes are made to the system and periodically thereafter.
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