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A fireman's switch is a specialized switch that allows firefighters to quickly disconnect power from high voltage devices that may pose a danger in the event of an emergency. [1] According to the Institution of Electrical Engineers , any electrical device operating at over 1,000 Volts AC or 1,500 volts DC , must be equipped with the switch.
A switch attached to a Glock pistol. A Glock switch (sometimes called a button or a giggle switch) [1] [2] [3] is a small device that can be attached to the rear of the slide of a Glock handgun, changing the semi-automatic pistol into a selective fire machine pistol capable of fully automatic fire.
A Knox vault in an academic building A Knox KeySecure, attached inside the cab of a fire engine, holds a high-security key [broken anchor] to open KnoxBox key boxes in the area. A Knox Box is a small, wall-mounted safe that holds building keys for fire departments, emergency medical services, and sometimes police to retrieve in emergency ...
More recent PASS devices can also automatically activate if the device does not detect motion for 30 seconds, [1] so that the alert will sound if the firefighter is seriously injured or otherwise incapacitated. Some devices use a ball bearing on a track to sense firefighter movement and others use an infrared beam against a mirror mounted on a ...
A fire alarm system is a building system designed to detect, alert occupants, and alert emergency forces of the presence of fire, smoke, ...
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USA TODAY map details how much snow has accumulated over the past 24, 48, and 72 hours as well as seasonal totals across the US.
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