AS 2118.5-2008

1 - AS 2118.5-2008 AUTOMATIC FIRE SPRINKLER SYSTEMS - HOME FIRE SPRINKLER SYSTEMS
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
8 - SECTION 1 SCOPE AND GENERAL
8 - 1.1 SCOPE
8 - 1.2 OBJECTIVE
9 - 1.3 COMPETENT PERSONS
9 - 1.3.1 General
9 - 1.3.2 Installation
9 - 1.4 NORMATIVE REFERENCES
10 - 1.5 DEFINITIONS
10 - 1.5.1 Competent person
10 - 1.5.2 Home sprinkler
10 - 1.5.3 Home sprinkler system, combined
10 - 1.5.4 Home sprinkler system, independent
10 - 1.5.5 K factor
10 - 1.5.6 Listed
10 - 1.5.7 Piping
11 - 1.5.8 Priority demand valve
11 - 1.5.9 Shall
11 - 1.5.10 Should
11 - 1.6 ABBREVIATIONS
12 - SECTION 2 INSTALLATION
12 - 2.1 GENERAL
12 - 2.2 EXTENT OF SPRINKLER PROTECTION
14 - 2.3 SMOKE ALARMS
15 - 2.4 SYSTEM TYPE
15 - 2.5 INSTALLATION CONFIGURATIONS
15 - 2.5.1 General
15 - 2.5.2 Combined systems
15 - 2.5.3 Independent systems
15 - 2.5.4 Pipe routing
15 - 2.5.5 Electrical safety precautions and earthing
20 - SECTION 3 WATER SUPPLIES
20 - 3.1 GENERAL
20 - 3.2 SUPPLY
20 - 3.3 SOURCE OF SUPPLY
20 - 3.3.1 Combined system
22 - 3.3.2 Independent systems
25 - 3.4 SUPPLY AVAILABILITY-NETWORK UTILITY OPERATOR DRINKING WATER SUPPLY
25 - 3.5 SUPPLY FLOW, PRESSURE AND DURATION
25 - 3.6 PUMPSETS
25 - 3.6.1 General
25 - 3.6.2 Pump duty
25 - 3.6.3 Pumpset starting-Pressure switches
25 - 3.6.4 Power supply
26 - 3.6.5 Wiring
27 - 3.6.6 Valves
27 - 3.6.7 Pressure gauges
27 - 3.6.8 Maximum allowable working pressure
27 - 3.6.9 Marking
28 - 3.7 TANKS
28 - 3.7.1 General
28 - 3.7.2 Storage tanks-Atmospheric
28 - 3.7.3 Storage tanks-Pressure
29 - SECTION 4 DESIGN AND HYDRAULICS
29 - 4.1 GENERAL
29 - 4.2 DESIGN CRITERIA
29 - 4.2.1 Design data
29 - 4.2.2 Number of sprinklers in operation
29 - 4.2.3 Design flow
29 - 4.3 SPACING OF SPRINKLERS
29 - 4.3.1 General
30 - 4.3.2 Obstructions to water distribution
34 - 4.3.3 Impact of response time
41 - 4.4 HYDRAULIC CALCULATIONS
41 - 4.4.1 General
41 - 4.4.2 Minimum sprinkler pressure
44 - 4.4.3 Hydraulic calculation
54 - SECTION 5 COMPONENTS
54 - 5.1 GENERAL
54 - 5.2 PIPE AND PIPE FITTINGS
54 - 5.2.1 General
54 - 5.2.2 Protection against fire
54 - 5.2.3 Pipe identification
55 - 5.2.4 Pipe supports
55 - 5.2.5 Pipe in-line devices
55 - 5.3 VALVES
55 - 5.3.1 General
55 - 5.3.2 Backflow protection
55 - 5.3.3 Domestic service isolating valve (independent systems)
55 - 5.3.4 Remote test valve and test assembly
56 - 5.4 WATER METER ASSEMBLY
56 - 5.4.1 General
56 - 5.4.2 Meter valve tag(s)
57 - 5.5 SPRINKLERS
57 - 5.5.1 General
57 - 5.5.2 Spare sprinklers and spanner
57 - 5.5.3 Painting of sprinklers
61 - SECTION 6 COMMISSIONING
62 - APPENDIX A - OPTIONAL ADDITIONAL PROTECTION
62 - A1 SCOPE
62 - A2 UNPROTECTED AREAS
62 - A3 ROOF SPACES
62 - A4 ALARMS
62 - A5 WATER SUPPLIES
63 - A6 PRIORITY DEMAND VALVE
63 - A7 PRESSURE GAUGE
64 - APPENDIX B - CONSUMER INFORMATION
66 - APPENDIX C - HOME SPRINKLERS-OWNER'S GUIDE TO FUNCTIONS AND BENEFITS
66 - C1 GENERAL
66 - C1.1 Home fire sprinkler systems are designed to:
66 - C1.2 Home fire sprinkler systems are not designed to:
66 - C2 SPRINKLER SYSTEM COMPONENTS
66 - C2.1 Smoke alarms
67 - C2.2 Water supply
67 - C2.3 Water supply shut-off valve
67 - C2.4 Domestic water-isolating valve
67 - C2.5 Sprinkler system pressure gauge
67 - C2.6 Sprinkler system pipework
67 - C2.7 ‘Home’ sprinkler
67 - C2.8 Areas not covered by the sprinkler system
68 - C3 MODIFICATIONS TO PLUMBING SYSTEM AFTER INSTALLATION
68 - C4 RECOMMENDED DAY-TO-DAY PRACTICES
68 - C5 IN THE EVENT OF A FIRE
69 - C6 SPRINKLER OPERATION UNDER FIRE CONDITIONS
69 - C7 WATER SUPPLY PRESSURE AND FLOWS
70 - APPENDIX D - MAINTENANCE
70 - D1 GENERAL
70 - D2 MONTHLY CHECKS
70 - D3 ANNUAL CHECKS
71 - APPENDIX E - WATER SUPPLY TESTS
71 - E1 GENERAL
71 - E2 STATIC PRESSURE TEST
71 - E3 RESIDUAL PRESSURE TEST
73 - APPENDIX F - HYDRAULIC CALCULATION
74 - APPENDIX G - PROTECTION OF PIPING AGAINST FIRE
74 - G1 GENERAL
74 - G2 TEST SAMPLES
74 - G3 TEST FIRE SOURCE
74 - G4 TEST ENCLOSURE
75 - G5 TEST PROCEDURE
76 - APPENDIX H - COMPLETION CERTIFICATE

Specifies requirements for the design, installation, commissioning and maintenance of automatic fire sprinkler systems for one and two family homes.

This Standard specifies minimum requirements for the components, design, installation, commissioning and maintenance of automatic home fire sprinkler systems for one- and two-family homes. It provides two options, namely an independent piping system serving fire sprinklers only or a combined piping system serving both the fire sprinklers and the domestic plumbing fixtures.This Standard is intended to provide a degree of life safety and property protection for the occupants of one- and two-family homes as follows:(a) Single dwellings, detached houses.(b) Terrace houses, townhouses, villa units (multiple adjoining dwellings which are separated by fire rated walls).(c) Moveable or relocatable dwellings.(d) Cabins.(e) ‘Granny’ flats.This Standard does not apply to residential occupancies covered by AS 2118.1 (general systems) and AS 2118.4 (residential systems).NOTES: 1 This Standard provides minimum requirements; however, in certain circumstances, such as concealed spaces used for storage purposes, extended protection may be considered. Guidance on optional additional protection is given in Appendix A.2 The installation of smoke alarms forms an integral part of the requirements of this Standard.3 The design criteria in this Standard are aimed at maintaining survival conditions for a period of at least 10 min during which it is assumed that evacuation will be accomplished.4 Consumer information is provided in Appendix B.5 Guide to function and benefits of home sprinklers is provided in Appendix C.6 Information on maintenance is given in Appendix D.

First published as AS 2118.5-1995.
Second edition 2008.
Reconfirmed 2020. First published as AS2118.5-1995. (DOMESTIC SPRINKLERS) Second edition 2008.