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The NFPA 72 "covers the application, installation, location, performance, inspection, testing, and maintenance of fire alarm systems, supervising station alarm systems, public emergency alarm reporting systems, fire warning equipment and emergency communications systems (ECS), and their components."
The Eastern Market in Washington, D.C., was damaged by a three-alarm fire in 2007 [1] New York City's Serbian Orthodox Cathedral of St. Sava was mostly destroyed by a four-alarm fire in 2016 [2] One-alarm fires, two-alarm fires, three-alarm fires, etc., are categories classifying the seriousness of fires, commonly used in the United States and ...
Many modern fire alarm pull stations are single-action and only require the user to pull down a handle to sound the alarm. Other fire alarm pull stations are dual-action, and as such require the user to perform a second task before pulling down, such as lifting or pushing in a panel on the station or breaking a glass panel with an attached hammer.
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 ...
The fire detection and fire alarm system subcommittee of ISO/TC 21, Equipment for Fire Protection and Fire Fighting, had oversight for development of five standards covering detectors, control and indicating equipment. ISO 7240-2:3003 specifies requirements, test methods and performance criteria for control and indicating equipment (c.i.e.) for ...
They usually have office and workshop space, tool storage and often sleeping quarters. Fire, trail, road and other work crews are frequently stationed at these sites during busy times of the year. Casa Vieja Guard Station, Golden Trout Wilderness, Inyo National Forest, Mount Whitney Ranger District, circa 1976. Built in 1959.
A ranger station is a building complex typically including a dwelling and outbuildings which support a ranger or other guardian of a wilderness or national forest area. For example, the Cold Meadows Guard Station in Idaho County, Idaho , United States, is a complex of six buildings and structures in the Payette National Forest .
From NFPA 72, 2002 Edition: “7.4.2.1* To ensure that audible public mode signals are clearly heard, unless otherwise permitted by 7.4.2.2 through 7.4.2.5, they shall have a sound level at least 15 dB above the average ambient sound level or 5 dB above the maximum sound level having a duration of at least 60 seconds, whichever is greater ...