BS 5839-8:2013

Fire detection and fire alarm systems for buildings. Code of practice for the design, installation, commissioning and maintenance of voice alarm systems

Buy Now at BSI Shop

BS 5839-8:2013 gives recommendations for the design, installation, commissioning and maintenance of voice alarm systems which automatically broadcast speech or warning tones, in response to signals from their associated fire detection and fire alarm systems. It also covers systems that include a manual facility for the transmission of live voice messages as well as automatically generated messages for emergency purposes.

Contents for BS 5839-8:2013 includes:

Section 1: General
Normative references
Terms and definitions
Need for a VAS
Types of systems
Exchange of information and responsibilities
Variations from the recommendations of this standard

Section 2: Design considerations
Relationship between system type and evacuation plan
Interface between the fire detection and fire alarm system and the VAS
Systems in explosive gas or dust atmospheres
System components
Monitoring, integrity and reliability of circuits external to the VACIE
Loudspeaker zones
Voice sounders
Power amplifiers
Ambient noise sensing and compensation controller (ANS)
Emergency microphones
Emergency message generators
Emergency messages
Audibility of non-speech broadcast
Intelligibility of speech messages
Voice alarm control and indicating equipment (VACIE)
Networked systems
Power supplies
Cables, wiring and other interconnections
Radio-linked systems
Climatic and environmental conditions
Radio and electrical interference
Electrical safety

Section 3: Installation
Responsibility of installer
Installation practices and workmanship
Inspection and testing of wiring

Section 4: Commissioning and handover

Section 5: Maintenance
Routine testing
Inspection and servicing
Non-routine attention

Section 6: User responsibilities
Premises management


BS 5839-8:2013 supersedes BS 5839-8:2008, which is withdrawn.