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AS 1668.1:2015
[Current]The use of ventilation and air conditioning in buildings, Part 1: Fire and smoke control in buildings
Sets out minimum requirements for the design, construction, installation and commissioning of mechanical smoke control systems in buildings. Specific methods of smoke control are defined and the appropriate requirements specified for each.
Published: 14/12/2015
Pages: 157
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
Foreword
1 General
1.1 Scope
1.2 Exclusions
1.3 Normative references
1.4 Definitions
1.5 Abbreviations
1.6 System objectives
1.7 New designs and innovations
2 Air-handling systems—General requirements
2.1 Scope of section
2.2 Interaction
2.3 Ductwork materials and installation
2.3.1 Materials
2.3.2 Combustibility and temperature of fusion
2.3.3 Fire resistance
2.3.4 Duct installation
2.3.5 Duct construction
2.4 Plenums and casings
2.5 Dampers
2.5.1 Manufacture and installation
2.5.2 Combined damper arrangements
2.5.3 Motorized operation
2.6 Air filters
2.6.1 Fabric filters
2.6.2 Location of air filters in relation to openings
2.6.3 Screens for filters
2.6.4 Cleaning or replacement
2.7 Electric heaters
2.7.1 General
2.7.2 Casing
2.7.3 Small electric heaters
2.8 Electrical installation
2.9 Support and isolation
3 Fire protection of openings in fire-resistant elements
3.1 Scope of section
3.2 General
3.2.1 General requirements
3.2.2 Packing
3.2.3 Insulation
3.2.3.1 Vertically mounted
3.2.3.2 Horizontally mounted
3.3 Method of protection
3.3.1 General
3.3.2 Exemptions
3.3.3 Exclusions
3.4 Fire-resistant enclosing construction
3.5 Fire-resistant lightweight structures
3.6 Subducts
3.6.1 Outlet projection
3.6.2 Packing
3.6.3 Smoke exhaust systems
3.6.3.1 Manufacture
3.6.3.2 Installation
3.6.3.3 Attachment of ductwork
3.6.4 Minor exhaust systems
3.6.4.1 Manufacture
3.6.4.2 Installation
3.6.5 Exhaust or relief airflow
3.7 Smoke exhaust systems
3.7.1 System enclosure
3.7.2 Ductwork
3.7.3 Shafts
3.7.4 Entry of smoke
3.8 Individual air-handling systems
4 Smoke control systems—General requirements
4.1 General
4.2 Location of external openings
4.3 Direction of smoke exhaust airflow under smoke-control conditions
4.4 Location of smoke exhaust system inlets
4.5 Heat exchange equipment
4.6 Noise
4.7 Fire doors pressure differentials
4.8 Smoke exhaust fans
4.8.1 General
4.8.2 Selection criteria
4.9 Automatic initiation of systems
4.10 Electrical installation
4.10.1 Equipment
4.10.2 Wiring systems
4.10.2.1 General
4.10.2.2 Exceptions
4.10.3 Protection of electrical components
4.10.4 Isolation switches
4.10.5 Power supply
4.10.6 Variable speed drives
4.11 Control and indication
4.11.1 General
4.11.2 Location
4.11.3 Function
4.11.4 Signal transmission and system interface
4.11.4.1 General
4.11.4.2 Low level interface
4.11.4.3 High level interface equipment
4.11.4.4 Interface cabinet
4.11.5 Transmission paths
4.12 Non-electrical control systems
4.13 Documentation
4.13.1 Design
4.13.2 Operating and maintenance instructions (as-installed documentation)
4.13.3 Smoke control operating instructions
4.13.4 Smoke control schematic diagram
4.14 Testing and commissioning
4.14.1 General
4.14.2 Objective
4.14.3 Component testing
4.14.4 Subsystem testing
4.14.5 Systems interface testing
4.14.6 Performance validation
4.14.7 Measurement
4.14.7.1 Fire doors
4.14.7.2 Zone pressurization systems
4.14.7.3 Hot layer smoke control systems
4.14.7.4 Air purge system
4.14.7.5 Fire-isolated exit pressurization systems
4.14.7.6 Lift shaft pressurization systems
4.15 Baseline data, test results and documentation
5 Miscellaneous systems
5.1 General
5.2 Application
5.2.1 General
5.2.2 Special purpose systems
5.2.3 Single enclosures
5.3 Exhaust systems
5.3.1 Minor exhaust systems
5.3.2 Major exhaust systems
5.4 Supply air systems
5.4.1 Minor supply air systems
5.4.2 Major supply air systems
5.5 Car park ventilation systems
5.5.1 General
5.5.2 Fire isolation
5.5.3 Override control
5.5.4 Smoke detectors
5.5.5 Operation in fire mode
5.5.6 Fire-isolated exit pressurization relief
6 Kitchen exhaust hood systems
6.1 General
6.2 Kitchen exhaust hood system arrangement
6.2.1 General
6.2.2 Shared shafts
6.2.2.1 Kitchen exhaust
6.2.2.2 Other supply and exhaust system ductwork
6.2.3 Ductwork
6.2.3.1 Construction
6.2.3.2 Installation
6.2.3.3 Ducts within the compartment being served
6.2.3.4 Ducts penetrating fire-resisting elements
6.2.4 Fire dampers
6.2.5 Fan casings and cowls
6.2.6 Operation in fire mode
6.2.7 Fan switch labelling
6.2.8 Plant isolation
6.2.9 Flame and spark arrestance
7 Shutdown systems
7.1 General
7.2 Shutdown system configuration
7.2.1 Operation in fire mode
7.2.2 ‘Text deleted’
7.2.3 Smoke dampers
7.3 Performance criteria
8 Zone pressurization systems
8.1 General
8.2 System configuration
8.3 Performance criteria
8.4 Smoke exhaust system
8.4.1 Smoke exhaust fans
8.4.2 Smoke exhaust fan capacity
8.4.3 Return air fans and relief air fans
8.4.4 Smoke relief
8.5 Supply air
8.5.1 Central air-handling plant systems
8.5.1.1 Supply air fan
8.5.1.2 Individual compartment dampers
8.5.1.3 Air dampers
8.5.1.4 Fire dampers
8.5.1.5 Failure position
8.5.2 Individual plant systems
8.5.2.1 Supply air fan
8.5.2.2 Air dampers
8.6 Air relief and make-up
8.7 Operation in fire mode
8.7.1 Central air-handling plant systems
8.7.2 Individual plant systems
8.8 Individual plants incorporating common shafts
8.9 Lift shaft air relief
9 Hot layer smoke control systems
9.1 General
9.2 Hot layer smoke control system arrangement
9.3 Performance criteria
9.4 Smoke exhaust fans
9.4.1 General
9.4.2 Number of fans
9.4.3 Exhaust air capacity
9.4.4 Exhaust airflow rate—Atriums
9.5 Smoke exhaust intakes
9.5.1 Location
9.5.2 Size
9.6 Smoke reservoirs
9.6.1 Area
9.6.2 Depth
9.6.3 Vertically interconnected storeys
9.6.4 Construction materials
9.6.5 Leakage
9.6.6 Expansion
9.7 Ceilings and plenums
9.7.1 Ceiling plenum leakage
9.7.2 Ceiling space reservoir
9.7.3 Ceiling acting as vent
9.8 Automatic smoke curtains
9.8.1 Design
9.8.2 Installation
9.9 Make-up air
9.9.1 Method of make-up air
9.9.2 Make-up airflow rate
9.9.3 Air inlet provisions
9.9.4 Make-up air from interconnected smoke control zones
9.9.5 Make-up airflow rate for multi-level applications
9.10 Electrical installation
9.11 Operation of smoke control
10 Protection of fire-isolated exits
10.1 General
10.2 System configuration
10.2.1 General
10.2.2 Dedicated fire-isolated exit pressurization
10.2.3 Zone pressurization dependent systems
10.2.4 Protection of system components
10.2.5 Air pressurization fans
10.2.6 Air relief
10.2.7 Automatic smoke detectors
10.2.8 Control and indication
10.2.9 Operation in fire mode
10.3 Performance criteria
10.4 Air relief
10.4.1 General
10.4.2 Non-mechanical relief
10.4.3 Mechanical relief
10.5 Other services
11 Air purge systems
11.1 General
11.2 System configuration
11.3 Performance criteria
11.4 Smoke exhaust fan
11.5 Return air fan
11.6 Supply air fan
11.7 Dampers
11.7.1 Air damper
11.7.2 Fire damper
11.7.3 Failure position
11.8 Operation in fire mode
12 Lift shaft pressurization system
12.1 General
12.2 System configuration
12.3 Performance requirements
12.4 General requirements
12.4.1 Pressurization system
12.4.2 Automatic smoke detectors
12.4.3 Operation in fire mode
12.4.4 Motorized dampers
12.4.5 Override control
Appendix A
A1 Application
A2 Design
A2.1 Philosophy
A2.2 Issues
A2.2.1 General
A2.2.2 Design considerations
A2.2.3 Implementation and considerations
A3 General
A4 Category criteria
A4.1 General
A4.2 Category 1
A4.3 Category 2
A4.4 Category 3
A5 System operation
A5.1 Category 1 systems
A5.2 Category 2 systems
A5.3 Category 3 systems
A5.4 Fire doors and smoke doors
Appendix B
B1 Introduction
B2 Scenarios
B3 Purpose
B4 Reliability
Appendix C
Appendix D
D1 Protection against exposure to fire
D2 Protection against damage
D2.1 General
D2.2 WS51
D2.3 WS52
D2.4 WS53
D2.5 WS54
D2.6 WS55
D3 Various protection
D4 Protection against hosing with water
Appendix E
E1 General
E2 Emergency power
E3 Essential power
E4 Test documentation and baseline data
E5 Normal operation
E6 Precommissioning
E6.1 Component testing
E6.2 Subsystem testing
E7 Fire mode test procedures
E7.1 General
E7.2 Fire-isolated exit pressurization systems
E7.2.1 Procedure
E7.2.2 Air purge systems
E7.2.3 Zone pressurization dependent systems
E7.3 Shutdown systems
E7.4 Zone pressurization systems
E7.5 Hot layer smoke exhaust layer smoke exhaust systems
E7.6 Air purge systems
E7.7 Lift shaft pressurization systems
E7.8 Measurement of pressure differentials
E8 Restoration time performance
E9 Noise level measurements
E10 Measurement of door opening force
E11 Measurement of air velocity through openings
E11.1 General
E11.2 Time average method
E11.3 Instantaneous readout average method
E12 Damper failure position
E13 Test failure
E14 Supplementary testing
E15 Manual override
Appendix F
F1 Scope
F2 Warehouses
F3 Shops and shopping complexes
F4 Auditoriums and theatres
F5 Buildings that contain an atrium
F6 Factories
F7 Recreational and other facilities
F8 High risk areas in a building
Appendix G
G1 General
G2 Flow-containing construction
G3 Flow-enhancing construction
G4 Geometry limitations
Appendix H
H1 General
H2 Minimum effective exhaust opening perimeter
Appendix I
I1 Smoke baffle/curtain materials
I2 Outdoor design conditions
Appendix J
Appendix K
Amendment control sheet
Bibliography
Cited references in this standard
[Current]
Components for the protection of openings in fire-resistant separating elements, Part 1: Service penetrations and control joints
[Current]
High efficiency particulate air (HEPA) filters — Classification, construction and performance
Content history
[Current]
[Available Superseded]
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