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

The choice of fire alarm system depends on the building structure, the purpose and use of the building and current legislation. In new or altered buildings the enforcement body is the local building control, and the relevant guidance is explained in section new or altered buildings. All existing buildings except domestic premises are subject to The Regulatory Reform (Fire Safety) Order 2005 and the Responsible Person, as defined in the order, has to conduct a fire risk assessment. This FRA will decided the appropriate British standard necessary to provide a suitable and sufficient solution for the premises. The enforcement body is the Fire and Rescue Service and the Department of Communities and Local Government (DCLC) have published a number of guidance documents for premises subject to the RR(FS)O. This is particularly important since none of the legislation gives any detailed information on the type of system required but the guidance usually indicates appropriate British standards.

This guidance contains brief descriptions of the major components which go to make up a fire alarm system. The points to be considered are intended to highlight the variables which can exist and need to be considered whilst designing and compiling a specification for component parts.

It is not the object of this note to consider the details of different circuit types or to discuss their relative merits.

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