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BS 5839-9:2021

BS 5839-9:2021

$215.11

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

Published By Publication Date Number of Pages
BSI 2021 72
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This part of BS 5839 provides recommendations for the planning, design, installation, commissioning and maintenance of emergency voice communication (EVC) systems in and around buildings and at sports, entertainment and similar venues. It does not recommend whether or not an emergency voice communication system is installed in a given premises.

This part of BS 5839 relates to the use of EVC in communicating with people in refuges, fire wardens, fire marshals and firefighters in firefighting lobbies and communicating with stewards at sporting events. Use, other than in fire emergency situations, by disabled persons and others, although not precluded, is not addressed in detail.

Other than in exceptional circumstances, EVC systems are not intended as the means of raising a fire alarm, instead of manual call points. Refer to BS 5839-1 for guidance on fire detection and alarm systems.

This part of BS 5839 covers systems with components linked by wires, wirelessly, or a combination of both.

This part of BS 5839 covers EVC systems and is therefore not intended to cover general-purpose intercom systems, lift intercom systems, local (internal) telephone systems for general use, or any external communication systems, such as the public switched telephone network and cellular telephone networks.

Voice alarm systems are primarily intended for the automatic broadcasting of evacuation messages; they are covered by BS 5839-8 and are therefore excluded from this part of BS 5839.

PDF Catalog

PDF Pages PDF Title
5 Foreword
7 Introduction
8 Section 1: General
1 Scope
2 Normative references
9 3 Terms and definitions
12 4 Need for an emergency voice communication system
13 5 Exchange of information and definition of responsibilities
14 6 Variations from the recommendations of this British Standard
15 Section 2: Design considerations
7 Purpose
16 8 System circuitry and software
17 9 Audio and data signal paths
18 10 Fault monitoring and indication
10.1 Fault conditions
19 10.2 Fault indications
20 10.3 Audible fault warning
10.4 Resetting from the fault warning condition
10.5 Monitoring of software-controlled equipment
10.6 Monitoring of memory contents
21 10.7 System integrity
11 Outstations
11.1 General
22 11.2 Controls
11.3 Indications
23 11.4 Electrical performance
11.5 Mechanical details
24 11.6 Location
26 11.7 Audio frequency induction loop systems
Figure 1 — Measuring field strength – plan view
27 Figure 2 — Measuring field strength – side view
12 Master stations
12.1 General
29 12.2 Controls
30 12.3 Indicators
31 12.4 Electrical performance
32 12.5 Mechanical construction
12.6 Location
33 13 Power supplies
34 13.1 Recommendations for low voltage mains power supplies
35 13.2 Recommendations for EVC system power supply units
36 14 Cables, wiring and other interconnections
38 15 Wireless-linked EVC systems
41 16 Environmental conditions
42 17 Electromagnetic compatibility
18 Electrical safety
44 Section 3: Installation
19 Responsibilities of the installer
20 Installation practices and workmanship
45 21 Testing of wiring
47 Section 4: Commissioning and handover
22 Commissioning
48 23 Documentation
49 24 Certification
50 25 Acceptance
51 26 Verification
27 Training
53 Section 5: Maintenance
28 Routine testing
28.1 Recommendations for weekly testing by the user
28.2 Recommendations for monthly attention by the user
54 29 Inspection and servicing
29.1 Recommendations for quarterly inspection of a vented battery
29.2 Recommendations for six-monthly inspection and test of the system
55 30 Non-routine attention
58 Section 6: User responsibilities
31 Premises management
32 Logbook
59 Annex A (informative)  Explanation of access level
60 Annex B (normative)  Method for calculating standby battery capacity
61 Annex C (normative)  Modified subclauses from BS EN 54-2:1997+A1
63 Annex D (informative)  Model certificates
71 Bibliography

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BS 5839-9:2021
$215.11