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The alarm transmission methods covered under UL 365 can be categorized under standard line security or encrypted line security. The systems are required to operate within the limits of Class 2 remote control and signal circuits as defined by the National Electrical Code, NFPA 70.
The New York City Fire Department is the largest municipal fire department in North America, and the Western Hemisphere, and the second largest in the world after the Tokyo Fire Department. [ citation needed ] The FDNY employs over 11,000 uniformed firefighting employees, 4,500 uniformed EMTs, paramedics, and EMS employees, and 2,000 civilian ...
Fire alarm systems are required in most commercial buildings. They may include smoke detectors, heat detectors, and manual fire alarm activation devices (pull stations). All components of a fire alarm system are connected to a fire alarm control panel. Fire alarm control panels are usually found in an electrical or panel room.
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.
The list is a basic example of how alarm levels are categorized in a fire department, how many fire apparatus or fire units respond to each alarm level, etc. In New York, however, additional special alarm levels are utilized, aside from the conventional first alarm fire, second alarm fire, third alarm fire, etc. Examples of such alarm levels ...
A fire alarm box, fire alarm call box, or fire alarm pull box is a device used for notifying a fire department of a fire or a fire alarm activation. Typically installed on street corners or on the outside of commercial buildings in urban areas, they were the main means of summoning firefighters before the general availability of telephones.
First fire station to respond to the terrorist attacks at the World Trade Center on September 11, 2001 Firehouse, Engine Company 10 and Ladder Company 10 , is a New York City Fire Department (FDNY) fire station , located at 124 Liberty Street across from the World Trade Center site and the National September 11 Memorial & Museum in the ...
The New York City Fire Commissioner compared the stairway to a "chimney" [7] as it became a conduit for thick, toxic smoke via the stack effect. Smoke seeped into rooms through door frame and ventilation systems, setting off fire alarms throughout the complex and awaking residents. Around 170 firefighters responded to the 5-alarm fire.