19/30381627 DC

This standard 19/30381627 DC BS ISO 7240-3. Fire detection and alarm systems is classified in these ICS categories:

• 13.220.20 Fire protection

This document specifies the requirements, test methods and performance criteria for audible alarm devices intended to signal an audible warning, with or without voice messages between a fire detection and fire alarm system and the occupants of a building

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This document specifies fire alarm audible alarm devices for two types of application environment, type A for indoor use and type B for outdoor use.

This document is not intended to cover:

1. loudspeaker-type devices primarily intended for emitting emergency voice messages that are generated from an external audio source;

2. supervisory audible alarm devices, e.g. within the control and indicating equipment.