BS 5839-8:2008

Foreword
Section 1: General
1 Scope
2 Normative references
3 Terms and definitions
4 Need for a voice alarm system
5 Types of systems
6 Exchange of information and responsibilities
7 Variations from the recommendations
   of this standard
Section 2: Design considerations
8 Relationship between system type and
   evacuation plan
9 Interface with the fire detection and fire
   alarm system
10 Systems in explosive gas or dust atmospheres
11 System components
12 Monitoring, integrity and reliability of
   circuits external to the VACIE
13 Loudspeaker zones
14 Loudspeakers
15 Voice sounders
16 Power amplifiers
17 Ambient noise sensing and compensation
   controller (ANS)
18 Emergency microphones
19 Emergency message generators
20 Emergency messages
21 Audibility of non-speech broadcast
22 Intelligibility of speech messages
23 Priorities
24 Voice alarm control and indicating
   equipment (VACIE)
25 Networked systems
26 Power supplies
27 Cables, wiring and other interconnections
28 Radio-linked systems
29 Climatic and environmental conditions
30 Radio and electrical interference
31 Electrical safety
Section 3: Installation
32 Responsibility of installer
33 Installation practices and workmanship
34 Inspection and testing of wiring
Section 4: Commissioning and handover
35 Commissioning
36 Documentation
37 Certification
38 Acceptance
39 Verification
Section 5: Maintenance
40 Routine testing
41 Inspection and servicing
42 Non-routine attention
Section 6: User responsibilities
43 Responsible person
44 Logbook
Annexes
Annex A - Typical ambient noise levels and their
          effect on system design
Annex B - Voice alarm control and indicating
          equipment
Annex C - Standby battery calculations
Annex D - Model certificates
Bibliography

Provides 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 alarm systems.