Self Contained Fire Alarms

Fire Alarm Systems — Types of Fire Alarm SystemsSystem DesignControl of Indicating PanelsDetector HeadsManual Call PointsAlarm SoundersPower UnitsDiversion RelaysSelf Contained Fire AlarmsWiring & InstallationInspection & ServicingStatutory Regulations

These units normally incorporate break glass contact, fire alarm sounder, battery and charger. The units are suitable for small hotels, shops, guest houses etc. A single sounder can be expected to give a 3 hour alarm. This reduces to one hour when three additional 6 bells are installed. Self contained units incorporating smoke detectors are also available, They normally include visual and audible indicators of the circuit and power supply faults in accordance with the British Standard.
Points to consider

Open, closed or fault monitored circuit
Smoke detectors to be incorporated
Operating voltage
Number of additional bells
Resistance of connecting cables
Spare glasses for contact
Mains supply connection for unit
Spare cartridge fuses

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