Principle of Operation The primary purpose of a fire indicator panel is to monitor each circuit, zone or point for any condition (alarm signal or other abnormal condition); display the status of that condition and to operate any required output or outputs according to the approved design of the system. These outputs are typically for the purpose of warning occupants on a fire alarm signal, notify the fire brigade, control the spread of heat, smoke or fire; or used for a wide variety of other purposes. Before I go any further it’s important to define a couple of terms used in this article, to provide both context and explanation of their meaning; Circuit A circuit comprises an unbroken path (usually a pair of wires) along which an electric current exists or is intended or able to flow. In fire alarm terms this generally means the wiring connecting one or more detectors to the fire panel. Zone A zone is a group of one or more detectors, grouped by their common location or in the case of a collective circuit all of the detectors on that circuit. Another way to describe a zone is one of the following;
Standards also limit the number of detectors a zone may comprise
Appliances
Fire Smoke Detectors
Fire smoke detector is essential. It provides vital early warning and extra time to escape if there is a fire.
Call Point
Manual alarm call points are designed for the purpose of raising an alarm manually once verification of a fire or emergency condition exists, by operating the push button or break glass the alarm signal can be raised.
4- Zone Control Panel
Provide such advanced features as drift compensation, maintenance alert, and freeze warning.
The signals may operate as stand-alone units or be incorporated into a wider system, such as a fire panel. Strobe Warning Light Hazardous Locations, Weatherproof Manual Alarm Call Points
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