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eLibrary > BS 5839-9:2021 Fire detection and fire alarm systems for buildings - Code of practice for the design, installation, commissioning and maintenance of emergency voice communication systems >

BS 5839-9:2021 Fire detection and fire alarm systems for buildings - Code of practice for the design, installation, commissioning and maintenance of emergency voice communication systems, 2021

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

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