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The NFPA 72 (National Fire Alarm and Signaling Code) is a standard published by the National Fire Protection Association every 3 years for installation of fire alarm systems and emergency communication systems in the United States.
The EN 54 series of standards covers the following topics and product groups related to fire detection and fire alarm systems: [6] [7] Introduction: the introduction to the series of standards contains a diagram of a fire alarm system as well as numerous definitions of terms that are used in the other parts of the series of standards.
The standard details requirements for a range of alarm systems including central station burglar alarms, police station connected alarms, local alarms, proprietary systems, holdup alarms, and digital alarm communicator system units. It also covers power supplies essential for burglar-alarm equipment operation.
Alert or Alarm - Raise the alarm by triggering a fire alarm. Alert nearby persons to gain assistance in fighting the fire or alerting other people. Alert emergency services, site security and other emergency contacts as necessary. Confine or Contain - Contain the spread of the fire by closing nearby doors and windows if it is safe to do so. The ...
A fire alarm control panel Fire alarm speaker and pull station. Fire alarm systems are composed of several distinct parts: Fire alarm control panel (FACP), or fire alarm control unit (FACU): This component, the hub of the system, monitors inputs and system integrity, controls outputs, and transmits information.
[87] [88] The shooter pulled the fire alarm in order to lure students and staff members out into the hallways, which caused some confusion among students and staff members, because there had been a fire drill earlier that same day, [89] and shortly after the shooting began, a staff member activated a code red lockdown. [89]
The coworker of a newly married woman says she used their recent company holiday party to swindle wedding gifts. After sharing a "sob story" about how she wasn't given enough money from her guests ...
Coded panels were the earliest type of central fire alarm control, and were made during the 1800s to the 1970s. A coded panel is similar in many ways to a modern conventional panel (described below), except each zone was connected to its own code wheel, which, depending on the way the panel was set up, would either do sets of four rounds of code until the initiating pull station was reset ...