Fire detection systems - Notifier

Fire detection Systemscontentsintelligent fire alarm systemsconventional fire alarm systemsdetector application guide4915 Fire detection systems 8/8/06 11:46 Page 3principle of operationA conventional fire alarm systemnormally consists of a control panellinked to a number of lines of firedetectors and manual call points,normally called detection zones,and a number of sounder or alarmcircuits. A simple system is shownin Figure panelThe control panel drives thedetection zones and soundercircuits, provides LED indications of fire, fault or normal conditionsand contains switches to allow thesounders to be activated or silencedand the detectors to reset followingan alarm. The control panel ispowered from the mains (230 VAC)and will contain back-up batteriesto allow the system to function for a minimum of 24 hours, dependanton the application, in case of amains : There are numerous suppliersof fire control equipment and firedetection devices .

detection devices. There is no guarantee that all panels and all detectors are electrically compatible. Therefore, to avoid potential incompatibility issues, it is strongly recommended to purchase both groups of products from the same source, or to obtain confirmation of compatibility from the panel manufacturer. fire detection and alarm zones

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