AS 2118-1982

1 - AS 2118-1982 SAA CODE FOR AUTOMATIC FIRE SPRINKLER SYSTEMS
4 - PREFACE
5 - CONTENTS
7 - FOREWORD
7 - PART 1 - SCOPE, DEFINITIONS, CLASSIFICATION AND DESIGN DATA
7 - SECTION 1. SCOPE AND DEFINITIONS
7 - 1.1 SCOPE.
7 - 1.2 DEFINITIONS.
7 - 1.2.1 Alarm valve
7 - 1.2.2 Approved
7 - 1.2.3 Assumed area of operation
7 - 1.2.4 Authority having jurisdiction
7 - 1.2.5 Authorized inspector
7 - 1.2.6 Building owner
7 - 1.2.7 Combustible
7 - 1.2.8 Cut-off sprinkler (or sprinklers)
7 - 1.2.9 Density of discharge
8 - 1.2.10 Design point
8 - 1.2.11 Distribution pipes
8 - 1.2.12 Elevated private reservoir
8 - 1.2.13 Encapsulated
8 - 1.2.14 End-centre arrangement
8 - 1.2.15 End-side arrangement
8 - 1.2.16 Escutcheon plate
8 - 1.2.17 Extra high hazard occupancy
8 - 1.2.18 Extra light hazard occupancy
8 - 1.2.19 Fire and draught stop
8 - 1.2.20 Fire door
8 - 1.2.21 Fire pump controller
8 - 1.2.22 Fire-resistance rating
8 - 1.2.23 Gravity tank
8 - 1.2.24 Gridded system
9 - 1.2.25 Inferior wall
9 - 1.2.26 Installation
9 - 1.2.27 Installation gauge
9 - 1.2.28 Looped system
9 - 1.2.29 Main distribution pipes
9 - 1.2.30 Main stop valve
9 - 1.2.31 Net positive suction head (NPSH) (of a pump)
9 - 1.2.32 Open joists and exposed common rafters
9 - 1.2.33 Ordinary hazard occupancy
9 - 1.2.34 Range pipes
9 - 1.2.35 Risers (drops)
9 - 1.2.36 Separate array
9 - 1.2.37 Sprinklered area
9 - 1.2.38 Sprinklered building
9 - 1.2.39 Terminal main system
9 - 1.2.40 Terminal range system
9 - 1.2.41 Trunk main
9 - 1.2.42 Fire damper
9 - 1.2.43 Fire-resistant roller shutter
9 - 1.3 REFERENCED DOCUMENTS.
10 - SECTION 2. CLASSES OF SPRINKLER SYSTEM AND DESIGN DATA
10 - 2.1 CLASSES OF SYSTEM.
10 - 2.2 CLASSIFICATION OF OCCUPANCIES.
10 - 2.2.1 General.
10 - 2.2.2 Extra Light Hazard Occupancies.
10 - 2.2.3 Ordinary Hazard Occupancies.
13 - 2.2.4 Extra High Hazard Occupancies.
15 - 2.3 TYPES OF SYSTEMS
15 - 2.3.1 General.
15 - 2.3.2 Standard Sprinkler Systems.
17 - 2.3.3 Deluge System.
17 - 2.4 DESIGN DATA.
17 - 2.4.1 Standard Sprinkler Systems.
18 - 2.4.2 Deluge Systems.
19 - PART 2 - GENERAL REQUIREMENTS
19 - SECTION 3. INSTALLATION
19 - 3.1 CONFIRMATION OF CLASS OF HAZARD.
19 - 3.2 INFORMATION TO BE PROVIDED FOR APPROVAL OF SPRINKLER SYSTEMS.
19 - 3.2.1 General.
19 - 3.2.2 At the Preliminary Stage.
19 - 3.2.3 After Placing of the Contract but Before Commencing Erection.
21 - 3.2.4 On Completion of Installation.
21 - 3.3 SPRINKLERED BUILDINGS.
21 - 3.3.1 Extent of Sprinkler Protection.
21 - 3.3.2 Protection Against Exposure Hazards.
22 - 3.3.3 Permitted Exceptions.
22 - 3.4 TRANSMISSION OF ALARM SIGNAL TO FIRE BRIGADE.
22 - 3.5 LOCAL ALARM.
22 - 3.6 SYSTEM MONITORING.
22 - 3.6.1 General.
22 - 3.6.2 Monitoring Devices.
22 - 3.6.3 Systems to be Monitored.
22 - 3.6.4 Components to be Monitored.
23 - 3.6.5 Installation.
23 - 3.6 MAINTENANCE.
24 - SECTION 4. WATER SUPPLIES
24 - 4.1 GENERAL.
24 - 4.2 ACCEPTABLE SOURCES OF SUPPLY.
24 - 4.3 WATER SUPPLY GRADES.
24 - 4.3.1 General.
24 - 4.3.2 Grade III Water Supplies.
25 - 4.3.3 Grade II Water Supplies.
25 - 4.3.4 Grade I Water Supplies.
35 - 4.4 CONNECTIONS TO OTHER SERVICES.
35 - 4.4.1 General.
35 - 4.4.2 Fire Hose Reel Connections.
35 - 4.4.3 Fire Brigade Booster Connection.
36 - 4.5 PRESSURE AND FLOW REQUIREMENTS.
36 - 4.6 PRESSURE LIMITATIONS.
36 - 4.7 MINIMUM CAPACITY OF STORED WATER SUPPLIES.
36 - 4.8 PUMP SUCTION TANKS.
36 - 4.8.1 General.
36 - 4.8.2 Effective Capacity.
37 - 4.8.3 Supply from Inexhaustible Source.
39 - 4.9 PRIVATE WATER SUPPLIES.
39 - 4.9.1 General.
39 - 4.9.2 Elevated Private Reservoirs.
39 - 4.9.3 Gravity Tanks.
40 - 4.10 TOWN MAINS.
40 - 4.10. 1 Direct Supply from Town Mains.
40 - 4.10. 2 Pump Drawing from Town Mains.
40 - 4.11 PUMP INSTALLATIONS.
40 - 4.11. 1 General Requirements.
41 - 4.11. 2 Pump Operating Conditions.
45 - 4.11.3 Suction Piping.
45 - 4.11.4 Performance Requirements for Pumps.
45 - 4.12 PUMP SETS.
45 - 4.12.1 General.
46 - 4.12.2 Electric Motor Driven Pumps.
46 - 4.12.3 Compression-ignition Engine Driven Pumps.
47 - 4.13 PRESSURE TANKS.
47 - 4.13.1 General.
47 - 4.13.2 Special Requirements.
48 - 4.14 PROVING OF WATER SUPPLIES.
50 - SECTION 5. SPACING AND LOCATION OF SPRINKLERS
50 - 5.1 STANDARD SPACING.
50 - 5.2 STAGGERED SPACING.
50 - 5.3 MINIMUM DISTANCE BETWEEN SPRINKLERS.
50 - 5.4 LOCATION OF SPRINKLERS (OTHER THAN SIDEWALL SPRINKLERS).
50 - 5.4.1 General.
50 - 5.4.2 Walls and Partitions.
51 - 5.4.3 Ceilings, Roofs and Underside of Stairs.
51 - 5.4.4 Beams and Joists.
51 - 5.4.5 Columns.
51 - 5.4.6 Girders.
53 - 5.4.7 Roof Trusses.
53 - 5.4.8 Clear Space Below Sprinklers
53 - 5.5 SPACING AND LOCATION OF SIDEWALL SPRINKLERS.
53 - 5.5.1 General.
53 - 5.5.2 Maximum Spacing of Sidewall Sprinklers.
53 - 5.5.3 Distance Between Rows of Sprinklers.
53 - 5.6 LOCATIONS OR CONDITIONS INVOLVING SPECIAL CONSIDERATION (SUPPLEMENTARY PROTECTION).
53 - 5.6.1 Roof Spaces.
53 - 5.6.2 Ceiling and Floor Spaces.
54 - 5.6.3 Ceiling Materials.
54 - 5.6.4 Spaces Under Ground Floors.
54 - 5.6.5 Machinery Pits and Production Lines.
54 - 5.6.6 Hoists, Lift Shafts, Building Services Shafts and Enclosed Chutes.
54 - 5.6.7 Elevators, Rope or Strap Races, Gearing Boxes and Dust Receivers.
54 - 5.6.8 Corn, Rice, Provender and Oil Mills.
54 - 5.6.9 Bins and Silos.
54 - 5.6.10 Escalators.
55 - 5.6.11 Canopies.
55 - 5.6.12 Roof Overhang.
55 - 5.6.13 Exterior Docks and Platforms.
55 - 5.6.14 Enclosed Paint Lines, Drying Ovens, Drying Enclosures.
55 - 5.6.15 Spray Booths.
55 - 5.6.16 Oil and Flammable Liquid Hazards.
55 - 5.6.17 Commercial Type Cooking Equipment and Associated Ventilation Systems.
56 - 5.6.18 Air-handling Plant.
56 - 5.6.19 Computer and Other Electronic Equipment Areas.
56 - 5.7 OBSTRUCTIONS BELOW SPRINKLERS.
56 - 5.7.1 General.
56 - 5.7.2 Overhead Platforms.
56 - 5.7.3 Ducts.
56 - 5.7.4 Suspended Ceilings.
56 - 5.7.5 Hoods over Papermaking Machines.
56 - 5.7.6 Storage Racks.
56 - 5.7.7 Storage Fixtures of Solid and/or Slatted Shelved Construction.
56 - 5.8 FILM AND TELEVISION PRODUCTION STUDIOS.
56 - 5.8.1 Overhead Platforms and Walkways.
57 - 5.8.2 Concealed Spaces and Cavities.
57 - 5.9 THEATRES AND MUSIC HALLS (Protection on the Stage Side of the Proscenium Wall).
57 - 5.10 COLD STORAGE WAREHOUSE.
57 - 5.10.1 General.
57 - 5.10.2 Pipework within the Cold Chamber.
59 - SECTION 6. SPRINKLERS, SPRAYERS AND MULTIPLE CONTROLS
59 - 6.1 GENERAL.
59 - 6.2 TYPES OF SPRINKLERS, SPRAYERS AND MULTIPLE CONTROLS.
59 - 6.2.1 Sprinklers.
59 - 6.2.2 Sprayers.
60 - 6.2.3 Multiple Controls.
60 - 6.3 SPRINKLER K FACTORS, ORIFICE AND THREAD SIZES.
60 - 6.4 APPLICATION OF SPRINKLER TYPES.
60 - 6.5 TEMPERATURE RATINGS.
60 - 6.6 COLOUR CODING.
60 - 6.7 STOCK OF REPLACEMENT SPRINKLERS.
61 - 6.8 ANTI-CORROSION TREATMENT OF SPRINKLERS.
61 - 6.9 SPRINKLER GUARDS.
61 - 6.10 ESCUTCHEON PLATES.
61 - 6.11 PROTECTION AGAINST FROST.
62 - SECTION 7. PIPEWORK
62 - 7.1 PIPE AND PIPE FITTING SPECIFICATIONS.
62 - 7.1.1 General.
62 - 7.1.2 Pipes Above Ground.
62 - 7.1.3 Pipes Below Ground.
62 - 7.1.4 Protection of Underground Pipes.
62 - 7.1.5 Universal Joints and Flexible Connections.
62 - 7.2 HYDRAULIC TEST PRESSURE.
62 - 7.3 PIPE JOINTING.
62 - 7.3.1 Welded Pipes.
62 - 7.3.2 Mechanical Grooved Couplings.
62 - 7.4 EMBEDDING OF PIPEWORK.
62 - 7.5 CORROSION PROTECTION OF PIPEWORK.
63 - 7. 6 PIPEWORK IN UNSPRINKLERED BUILDINGS.
63 - 7.7 PROTECTION OF PIPEWORK AGAINST MECHANICAL DAMAGE.
63 - 7.8 HAZARDOUS PROCESSES AND EXPLOSION HAZARD - SPECIAL PRECAUTIONS CONCERNING PIPEWORK AND VALVES.
63 - 7.9 FACILITIES FOR FLUSHING PIPEWORK.
63 - 7.10 PROHIBITED USE OF PIPEWORK.
63 - 7.10.1 Electrical Earth.
63 - 7.10.2 Hoisting.
63 - 7.11 SLOPE OF PIPES FOR DRAINAGE.
63 - 7.12 LOW LEVEL DRAINAGE.
63 - 7.13 PIPE SIZES.
63 - 7.14 ORIFICE PLATES.
64 - 7.15 SUPPORT OF SPRINKLER PIPEWORK.
64 - 7.15.1 General.
64 - 7.15.2 Design.
64 - 7.15.3 Materials.
64 - 7.15.4 Requirements for Pipe Support Components
65 - 7.15.5 Fixing of Pipe Supports.
65 - 7.15.6 Spacing of Supports.
65 - 7.15.7 Location of Supports.
66 - 7.15.8 Verification of Design.
70 - SECTION 8. VALVES AND ANCILLARY EQUIPMENT
70 - 8.1 INSTALLATION CONTROL VALVES.
70 - 8.2 STOP VALVES.
70 - 8.2.1 General.
70 - 8.2.2 Main Stop Valves.
70 - 8.2.3 Stop Valves Controlling Water Supplies.
70 - 8.2.4 Subsidiary Stop Valves.
70 - 8.3 BLOCK PLAN.
71 - 8.4 LOCATION PLATE.
71 - 8.5 EMERGENCY INSTRUCTIONS.
71 - 8.6 NON-RETURN (BACK PRESSURE) VALVES.
71 - 8.7 ALARM VALVES.
71 - 8.7.1 Alarm (Wet Pipe) Valves.
71 - 8.7.2 Alarm (Dry Pipe) Valves.
71 - 8.7.3 Composite Alarm Valves.
71 - 8.7.4 Identification of Alarm Valves and Alarm Gongs.
71 - 8.7.5 Accelerators or Exhausters for Alarm Valves (Dry System)
72 - 8.8 PRESSURE-REDUCING VALVES.
72 - 8.9 DELUGE AND PRE-ACTION VALVES.
72 - 8.9.1 Deluge Valves.
72 - 8.9.2 Pre-action Valves.
72 - 8.10 ALARM DEVICES.
72 - 8.10.1 General.
72 - 8.10.2 Prevention of False Alarms.
72 - 8.10.3 Local Water Motor Alarms.
72 - 8.10.4 Direct Brigade Alarms.
72 - 8.10.5 Pressure Switches.
73 - 8.11 PRESSURE GAUGES.
74 - PART 3 - SUMMARIES OF REQUIREMENTS FOR SYSTEMS
74 - SECTION 9. EXTRA LIGHT HAZARD CLASS SYSTEMS
74 - 9.1 DESIGN DATA.
74 - 9.2 WATER SUPPLIES.
74 - 9.2.1 Pressure and Flow Requirements.
74 - 9.2.2 Minimum Capacity of Water Supplies.
74 - 9.2.3 Pumps.
75 - 9.2.4 Proving of Water Supplies.
75 - 9.3 SPACING OF SPRINKLERS.
75 - 9.3.1 Maximum Area Coverage per Sprinkler.
75 - 9.3.2 Maximum Distance between Sprinklers on Range Pipes and between Adjacent Rows of Sprinklers.
75 - 9.3.3 Maximum Distance from Walls and Partitions
75 - 9.4 SYSTEM COMPONENTS.
75 - 9.4.1 Sprinklers.
75 - 9.4.2 Pipework.
77 - 9.5 SYSTEM DRAINAGE.
77 - 9.6 NUMBER OF SPRINKLERS CONTROLLED BY ONE SET OF VALVES.
77 - 9.6.1 Wet Pipe Systems and Pre-action Systems.
77 - 9.6.2 Dry Pipe Systems and Alternate Wet and Dry Pipe Systems.
78 - SECTION 10. ORDINARY HAZARD CLASS SYSTEMS
78 - 10.1 DESIGN DATA.
78 - 10.2 WATER SUPPLIES.
78 - 10.2.1 Pressure and Flow Requirements.
78 - 10.2.2 Minimum Capacity of Water Supplies.
79 - 10.2.3 Pumps.
80 - 10.2.4 Proving of Water Supplies.
80 - 10.3 SPACING OF SPRINKLERS.
80 - 10.3.1 Maximum Area Coverage per Sprinkler.
80 - 10.3.2 Maximum Distance between Sprinklers on Range Pipes and between Adjacent Rows of Sprinklers.
80 - 10.3.3 Maximum Distance from Walls and Partitions
80 - 10.4 SYSTEM COMPONENTS.
80 - 10.4.1 Sprinklers.
80 - 10.4.2 Pipework.
83 - 10.5 SYSTEM DRAINAGE.
84 - 10.6 NUMBER OF SPRINKLERS CONTROLLED BY ONE SET OF VALVES.
84 - 10.6.1 Wet Pipe Systems and Pre-action Systems.
84 - 10.6.2 Dry Pipe Systems and Alternate Wet and Dry Pipe Systems.
85 - SECTION 11. EXTRA HIGH HAZARD CLASS SYSTEMS
85 - 11.1 DESIGN DATA.
85 - 11.1.1 General.
85 - 11.1.2 Process Risks.
85 - 11.1.3 High Piled Storage Risks.
92 - 11.1.4 Type of System.
92 - 11.2 WATER SUPPLIES.
92 - 11.2.1 Pressure and Flow Requirements.
93 - 11.2.2 Minimum Capacity of Water Supplies.
94 - 11.2.3 Pumps.
94 - 11.2.4 Proving of Water Supplies.
94 - 11.3 SPACING OF SPRINKLERS.
94 - 11.3.1 Maximum Distance between Sprinklers.
94 - 11.3.2 Maximum Distance between Sprinklers on Range Pipes and between Adjacent Rows of Sprinklers.
94 - 11.3.3 Maximum Distance from Walls and Partitions.
95 - 11.4 SYSTEM COMPONENTS.
95 - 11.4.1 Sprinklers.
95 - 11.4.2 Pipework.
101 - 11.5 SYSTEM DRAINAGE.
101 - 11.6 NUMBER OF SPRINKLERS CONTROLLED BY ONE SET OF VALVES.
101 - 11.6.1 Wet Pipe Systems.
101 - 11.6.2 Dry Pipe and Alternative Wet and Dry Pipe Systems.
102 - SECTION 12. FULL HYDRAULIC CALCULATION OF SPRINKLER SYSTEMS
102 - 12.1 GENERAL.
102 - 12.2 DESIGN REQUIREMENTS FOR DENSITY OF DISCHARGE.
102 - 12.3 ASSUMED AREA OF OPERATION.
102 - 12.4 SPRINKLERS IN OPERATION.
102 - 12.5 POSITION OF ASSUMED AREA OF OPERATION.
102 - 12.5.1 Hydraulically Most Unfavourable Area of Operation.
103 - 12.5.2 Hydraulically Most Favourable Area of Operation.
103 - 12.6 SHAPE OF ASSUMED AREA OF OPERATION.
103 - 12.6.1 Hydraulically Most Unfavourable Area of Operation.
103 - 12.6.2 Hydraulically Most Favourable Area of Operation.
103 - 12.7 WATER SUPPLIES.
103 - 12.8 PUMPSETS.
103 - 12.8.1 General.
103 - 12.8.2 Maximum Flow Rate.
104 - 12.9 CALCULATION OF PRESSURE LOSS IN PIPES.
105 - 12.10 PRESSURE LOSSES.
105 - 12.10.1 Fittings and Valves.
105 - 12.10.2 Dry Pendent (or Upright) Pattern Sprinklers.
105 - 12.12 ACCURACY OF CALCULATIONS.
105 - 12.13 MINIMUM SPRINKLER DISCHARGE PRESSURE.
106 - 12.14 MINIMUM PIPE SIZES.
106 - 12.15 VELOCITY LIMITATION.
106 - 12.16 VELOCITY PRESSURE.
106 - 12.17 INFORMATION TO BE PROVIDED FOR APPROVAL OF SPRINKLER SYSTEMS.
106 - 12.17.1 General.
106 - 12.17.2 Documentation.
106 - 12.17.3 Details of the Town Main.
106 - 12.17.4 Details of Automatic Pumpsets.
106 - 12.17.5 System Information.
106 - 12.17.6 Detailed Calculations.
107 - 12.17.7 Drawings and Diagrams.
107 - 12.18 IDENTIFICATION OF FULLY HYDRAULICALLY CALCULATED SYSTEMS.
121 - APPENDIX A - ORIFICE PLATES
121 - A1 SCOPE.
121 - A2 REQUIREMENTS.
121 - A3 NOTES ON THE USE OF TABLES A1 AND A2
123 - APPENDIX B - COMPLETION CERTIFICATE
125 - APPENDIX C - PIPEWORK INTERPRETATIONS
128 - APPENDIX D - FULLY HYDRAULICALLY CALCULATED EXTRA LIGHT HAZARD AND ORDINARY HAZARD SYSTEMS
129 - ANNEX 1 - REFERENCED DOCUMENTS
129 - Australian Standards
129 - British Standards
130 - ANNEX 2 - TECHNICAL CHANGES
131 - INDEX

Based on current FOC rules. Covers classes of system and design data, installation, water supplies, spacing and location of sprinklers, sprinklers and their sprayers and controls, pipework, valves and ancillary equipment, and hazard class system requirements, and includes appendices dealing with orifice plates, fully hydraulically calculated extra high hazard class systems, the completion certificate, terminology applied to pipework, and parameters for fully hydraulically calculated extra light and ordinary hazard class systems.

This standard sets out requirements for the installation of automatic sprinkler systems in buildings.

First published as part of AS CA16-1939 (endorsement of Seventh Edition of FOC Rules).
Redated 1942.
Second edition 1948 (endorsement of Eighth Edition of FOC Rules).
Third edition 1962 (endorsement of Ninth Edition of FOC Rules).
Fourth edition 1971 (based on Twenty ninth Edition of FOC Rules).
Revised and redesignated in part as AS 2118-1978.
Second edition 1982.
Revised and redesignated in part as AS 2118.9-1995.