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If a fire alarm control panel, burglar alarm control panel, or similar emergency system is triggered, it will cut electrical power to the electromagnetic door holders under its control. The door holders release, allowing the doors to close automatically using door closers. [1] [2] The electric power to keep the doors open is typically 12 VDC ...
Electromagnetic fire door holders may also be hard-wired into the fire panel, radio-controlled, triggered by radio waves from a central controller connected to a fire panel, or acoustic, which learns the sound of the fire alarm and releases the door upon hearing this exact sound. [20]
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.
A fire alarm control panel (FACP), fire alarm control unit (FACU), fire indicator panel (FIP), or simply fire alarm panel is the controlling component of a fire alarm system. The panel receives information from devices designed to detect and report fires, monitors their operational integrity, and provides for automatic control of equipment, and ...
The first modern direct-pull electromagnetic lock was designed by Sumner "Irving" Saphirstein in 1969 [6] [7] [8] for initial installation on doors at the Montreal Forum. [9] Fire concerns by local authorities in locking the doors at the Forum prompted management to find a locking solution that would be safe during a fire incident.
The intumescent and smoke-seal bounding of fire doors should be routinely checked, as should the action of the door closer and latch. Some fire doors are held open by an electromagnet, which is typically wired to a fire alarm system. If the power fails or the fire alarm is activated, the coil is de-energized, and the door closes.
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Panic doors, panic hardware Fire safety appliance permitting locked doors (typically self-closing) to be opened from the inside when pressed with sufficient force, thus permitting a person to open the door without having to turn a knob or lever. PASS device, personal alert safety system An alarm device that signals that a firefighter is in trouble.
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