AS 2676.2-1992

Guide to the installation, maintenance, testing and replacement of secondary batteries in buildings Sealed cells

Standards Australia

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1 - AS 2676.2-1992 GUIDE TO THE INSTALLATION, MAINTENANCE, TESTING AND REPLACEMENT OF SECONDARY BATTERIES IN BUILDINGS - SEALED C
4 - PREFACE
5 - CONTENTS
7 - SECTION 1 SCOPE AND GENERAL
7 - 1.1 SCOPE
7 - 1.2 APPLICATION
7 - 1.3 REFERENCED DOCUMENTS
7 - 1.4 DEFINITIONS
7 - 1.4.1 Accessible, readily
7 - 1.4.2 Accessories
7 - 1.4.3 Authorized person
7 - 1.4.4 Battery
8 - 1.4.5 Battery enclosure
8 - 1.4.6 Battery room
8 - 1.4.7 Boost charge
8 - 1.4.8 Capacity (C)
8 - 1.4.9 Capacity test
8 - 1.4.10 Cell
8 - 1.4.11 Charge/discharge rate
8 - 1.4.12 Charging
8 - 1.4.13 Constant current charge
8 - 1.4.14 Constant voltage charge
8 - 1.4.15 Container
8 - 1.4.16 Discharging
8 - 1.4.17 Duty cycle
8 - 1.4.18 Electrolyte
8 - 1.4.19 Equalizing charge
8 - 1.4.20 Final voltage (cutoff voltage, end voltage)
8 - 1.4.21 Float charge
8 - 1.4.22 Gassing
8 - 1.4.23 Initial performance test
8 - 1.4.24 Inter-cell and inter-row connections
8 - 1.4.25 May
8 - 1.4.26 Monobloc battery
8 - 1.4.27 Performance test
8 - 1.4.28 Prospective fault current
9 - 1.4.29 Sealed gastight cell
9 - 1.4.30 Sealed valve-regulated cell
9 - 1.4.31 Service life
9 - 1.4.32 Service test
9 - 1.4.33 Shall
9 - 1.4.34 Should
9 - 1.4.35 Shroud
9 - 1.4.36 Stepped stand
9 - 1.4.37 Terminal post
9 - 1.4.38 Tiered stand
10 - SECTION 2 DESIGN CONSIDERATIONS FOR DIRECT CURRENT SYSTEMS USING BATTERIES
10 - 2.1 GENERAL
10 - 2.2 BATTERY SIZE (Nominal voltage and rated capacity)
10 - 2.3 METHOD OF CONNECTION
10 - 2.4 OPERATING CONDITIONS
10 - 2.5 BATTERYSHORT-CIRCUIT CURRENT
11 - 2.6 VOLTAGE DROP
11 - 2.7 CONNECTION BETWEEN BATTERY AND DIRECT CURRENT SWITCHBOARD
11 - 2.7.1 General
11 - 2.7.2 Cables
11 - 2.7.3 Busbars
11 - 2.7.4 Busways
11 - 2.8 DIRECT CURRENTSWITCHBOARDS
11 - 2.9 TERMINALS AND CONNECTORS
11 - 2.10 DIRECT CURRENT SYSTEMS-EARTHING AND EARTH-FAULT DETECTION
12 - 2.11 EARTH-FAULT LOCATION
12 - 2.12 PROTECTION OF BATTERIES AND DIRECT CURRENT CIRCUITS
12 - 2.13 ALARMS
12 - 2.14 DUAL BATTERY SYSTEM
13 - SECTION 3 BATTERY ACCOMMODATION
13 - 3.1 GENERAL
13 - 3.2 LAYOUT AND LOCATION
13 - 3.3 VENTILATION
13 - 3.3.1 General
13 - 3.3.2 Rate of ventilation
13 - 3.3.3 Charging rate
13 - 3.3.4 Method of ventilation
14 - 3.4 ACCESS
14 - 3.4.1 General
14 - 3.4.2 Battery rooms or areas restricted to authorized personnel
14 - 3.4.3 Battery enclosures
14 - 3.5 FLOOR LOADINGS
14 - 3.6 BATTERY ENCLOSURE CONSTRUCTION
15 - 3.7 LIGHTING AND POWER
15 - 3.8 SAFETY SIGNS
15 - 3.9 ARRANGEMENT OF CELLS OR MONOBLOCS
15 - 3.10 BATTERY STANDS
16 - SECTION 4 CHARGING
16 - 4.1 GENERAL
16 - 4.2 CHARGING PARAMETERS
16 - 4.3 CHARGING TIME
17 - SECTION 5 INSTALLATION AND COMMISSIONING
17 - 5.1 RECEIPT INSPECTION
17 - 5.2 UNPACKING
17 - 5.3 STORAGE
17 - 5.4 MOUNTING AND CONNECTION
17 - 5.5 COMMISSIONING
17 - 5.5.1 Initial charge
17 - 5.5.2 Inter-cell voltage
17 - 5.5.3 Performance test
17 - 5.6 RECORDS
18 - SECTION 6 INSPECTION AND MAINTENANCE
18 - 6.1 INSPECTION
18 - 6.1.1 General
18 - 6.1.2 Test equipment
18 - 6.1.3 Inspection schedule
18 - 6.1.4 Performance tests
18 - 6.1.5 Abnormal conditions
18 - 6.2 RECORDS
19 - 6.3 PILOT CELLS
19 - 6.4 MAINTENANCE
19 - 6.4.1 Routine maintenance
19 - 6.4.2 Level of float voltage
19 - 6.4.3 Cell voltage
19 - 6.4.4 Cycling of nickel-cadmium batteries
20 - SECTION 7 TESTING
20 - 7.1 GENERAL
20 - 7.2 CAPACITY TEST SCHEDULE
20 - 7.2.1 Performance
20 - 7.2.2 Service
20 - 7.3 DESIGN CONSIDERATIONS FOR A CAPACITY TESTER
20 - 7.4 PROCEDURE FOR BATTERY CAPACITY TESTS
20 - 7.4.1 Type of test
20 - 7.4.2 Initial conditions
20 - 7.4.3 Test duration
20 - 7.4.4 Performance test
20 - 7.4.5 Service test
21 - 7.5 BATTERY REPLACEMENT CRITERIA
22 - SECTION 8 SAFETY
22 - 8.1 GENERAL
22 - 8.2 PROTECTIVE EQUIPMENT
22 - 8.3 SAFETY SIGNS
22 - 8.4 PRECAUTIONS
22 - 8.4.1 General
22 - 8.4.2 During installation
22 - 8.4.3 During maintenance
23 - 8.5 FIREFIGHTING EQUIPMENT
24 - APPENDIX A - A METHOD OF DETERMINING INTERNAL RESISTANCE
24 - A1 SCOPE
24 - A2 PRINCIPLE
24 - A3 PROCEDURE
24 - A4 REPORT
25 - APPENDIX B - TYPICAL DIRECT CURRENT SYSTEM EARTHING
27 - APPENDIX C - TYPICAL DIRECT CURRENT SYSTEM USING TWO BATTERIES
28 - APPENDIX D - TYPICAL BATTERY STANDS
30 - APPENDIX E - INITIAL CHARGING AND COMMISSIONING OF SEALED NICKEL- CADMIUM BATTERIES
30 - E1 SCOPE
30 - E2 CONDITION ON DELIVERY
30 - E3 INITIAL CHARGING
30 - E4 SERVICE TEST
30 - E5 INTERBATTERY UNIT CONNECTIONS
31 - APPENDIX F - INITIAL CHARGING AND COMMISSIONING OF SEALED LEAD-ACID BATTERIES
31 - F1 SCOPE
31 - F2 CONDITION ON DELIVERY
31 - F3 INITIAL CHARGING
31 - F4 SERVICE TEST
31 - F5 INTERBATTERY UNIT CONNECTIONS
32 - APPENDIX G - TYPICAL BATTERY REPORT SHEET
33 - APPENDIX H - PERFORMANCE TEST
33 - H1 SCOPE
33 - H2 PRINCIPLE
33 - H3 PREPARATION
33 - H4 PROCEDURE
33 - H5 CALCULATION
33 - H6 REPORT

Abstract

Part 2 sets out recommended practices for the installation, maintenance, testing and replacement of sealed secondary batteries permanently installed in buildings.

Scope

This Standard sets out recommended practices for the installation, maintenance, testing and replacement of sealed secondary batteries (either valve-regulated or gastight) located in or on buildings. It also provides guidance to determine when batteries should be replaced.
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 and 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.
NOTE: Requirements specifically applicable to the design and installation of extra-low voltage (d.c.) power supplies that are used by telecommunications carriers in the provision of public telecommunications networks are given in AS 3015 (Int)-1991, Electrical installations- Extra-low voltage (d.c.) power supplies in public telecommunications networks.