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AS 2676.2:2020
[Current]Guide to the installation, maintenance, testing and replacement of secondary batteries in buildings, Part 2: Sealed cells
This Standard sets out requirements and provides guidance for the installation, maintenance, testing and replacement of sealed secondary batteries (either valve-regulated or gastight) permanently installed in buildings, structures or premises. This Standard covers secondary batteries with a nominal voltage of 24 V or greater, and a capacity exceeding 10 A.h at the 1 h rate. It includes batteries comprising lead-acid cells and alkaline cells (such as nickel-cadmium cells). This Standard covers requirements for components of the d.c. system of which the battery is a part, where these components comprise an essential part of the d.c. system. This Standard covers sealed cells only. The installation and maintenance of vented cells are covered by AS 3011.1 and AS 2676.1.
Published: 17/04/2020
Pages: 39
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Introduction
1 Scope and general
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Terms and definitions
2 Design considerations for direct current systems using batteries
2.1 General
2.2 Battery size and type (nominal voltage and rated capacity)
2.3 Method of connection
2.4 Operating conditions
2.5 Battery short-circuit current
2.6 Voltage drop
2.7 Connection between battery and direct current switchboard
2.7.1 General
2.7.2 Cables
2.7.3 Busbars
2.7.4 Busways
2.8 Direct current switchboards
2.9 Terminals and connectors
2.10 Direct current systems — earthing and earth-fault detection
2.11 Earth-fault location
2.12 Protection of batteries and direct current circuits
2.13 Alarms
2.14 Dual battery system
3 Battery accommodation
3.1 General
3.2 Layout and location
3.3 Ventilation
3.3.1 General
3.3.2 Rate of ventilation
3.3.3 Charging rate
3.3.4 Method of ventilation
3.3.4.1 General
3.3.4.2 Natural ventilation
3.3.4.3 Mechanical ventilation
3.3.4.4 Arrangement of ventilation
3.4 Access
3.4.1 General
3.4.2 Battery rooms or areas restricted to authorized personnel
3.4.3 Battery enclosures
3.5 Floor loadings
3.6 Battery enclosure construction
3.7 Lighting and power
3.8 Safety signs
3.9 Arrangement of cells or monobloc
3.10 Battery stands
4 Charging
4.1 General
4.2 Charging parameters
4.3 Charging time
5 Installation and commissioning
5.1 Receipt inspection
5.2 Unpacking
5.3 Storage
5.4 Mounting and connection
5.5 Commissioning
5.5.1 Initial charge
5.5.2 Inter-cell voltage
5.5.3 Performance test
5.5.4 Cell voltage test
5.6 Records
6 Inspection and maintenance
6.1 Inspection
6.1.1 General
6.1.2 Test equipment
6.1.3 Inspection schedule
6.1.3.1 Quarterly
6.1.3.2 Yearly
6.1.4 Performance tests
6.1.5 Abnormal conditions
6.2 Records
6.3 Pilot cells
6.4 Maintenance
6.4.1 Routine maintenance
6.4.2 Level of float voltage
6.4.3 Cell voltage
6.4.3.1 Lead-acid cells
6.4.3.2 Nickel-cadmium cells
6.4.4 Cycling of nickel-cadmium batteries
7 Testing
7.1 General
7.2 Capacity test schedule
7.2.1 Performance
7.2.2 Service
7.3 Design considerations for a capacity tester
7.4 Procedure for battery capacity tests
7.4.1 Type of test
7.4.2 Initial conditions
7.4.3 Test duration
7.4.4 Performance test
7.4.5 Service test
7.5 Battery replacement criteria
8 Safety
8.1 General
8.2 Protective equipment
8.3 Safety signs
8.4 Precautions
8.4.1 General
8.4.2 During installation
8.4.3 During maintenance
8.5 Firefighting equipment
Appendix A
A.1 Scope
A.2 Principle
A.3 Procedure
A.4 Report
Appendix B
Appendix C
Appendix D
Appendix E
E.1 Scope
E.2 Condition on delivery
E.3 Initial charging
E.4 Service test
E.5 Inter-cell connections
Appendix F
F.1 Scope
F.2 Condition on delivery
F.3 Initial charging
F.4 Service test
F.5 Inter-battery unit connections
Appendix G
Appendix H
H.1 Scope
H.2 Principle
H.3 Preparation
H.4 Procedure
H.5 Calculation
H.6 Report
Bibliography
Cited references in this standard
[Current]
Low-voltage switchgear and controlgear assemblies, Part 1: General rules (IEC 61439-1, Ed. 2.0 (2011), MOD)
[Current]
Electrical installations (known as the Australian/New Zealand Wiring Rules)
[Current]
Electrical installations — Secondary batteries installed in buildings, Part 2: Sealed cells
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