Standard
Track updates
AS 1670.1:2024
[Current]Fire detection, warning, control and intercom systems - System design, installation and commissioning, Part 1: Fire
This Standard sets out requirements for the design, installation and commissioning of fire detection and alarm systems comprising components conforming with the requirements of the appropriate product Standard.
Published: 28/06/2024
Pages: 140
Table of contents
Cited references
Content history
Table of contents
Header
About this publication
Preface
1 Scope and general
1.1 Scope
1.2 Application
1.3 Normative references
1.4 Terms and definitions
1.5 Abbreviations
1.6 Measurements
1.6.1 Tolerances
1.6.2 Spacing
1.7 System design
1.7.1 General
1.7.2 Baseline data
1.7.3 Alterations to existing system
1.7.4 Fire alarm monitoring
1.8 Application of normative references
2 System configuration
2.1 Components
2.1.1 General
2.1.2 Components
2.1.3 Provision of FDCIE
2.1.4 Connectable devices
2.2 Designated entry point
2.2.1 Designated building entry point (DBEP)
2.2.2 Designated site entry point (DSEP)
2.3 Detection zone limitations
2.4 Networked FDCIE
2.5 Distributed parts of FDCIE
2.6 Transmission path faults
3 Installation requirements
3.1 General
3.2 Nuisance alarm mitigation methods
3.2.1 General
3.2.2 Alarm acknowledgement facility (AAF)
3.2.2.1 General
3.2.2.2 AAF sounder
3.2.2.3 AAF visual indicator
3.2.2.4 Acknowledgement period
3.2.2.5 AAF control
3.2.2.6 Investigation period
3.2.2.7 Mounting facilities
3.2.2.8 Marking
3.2.3 Alarm delay facility (ADF)
3.2.4 Alarm investigation facility (AIF)
3.2.4.1 General
3.2.4.2 Operation
3.2.5 Alarm verification facility (AVF) Type A dependency
3.2.6 Type B dependency
3.2.7 Type C dependency
3.3 Control of connectable devices
3.3.1 General
3.3.2 Supervision
3.4 Detector alarm indication
3.5 External alarm
3.6 Control and indicating equipment (CIE)
3.6.1 Location
3.6.2 Covering door
3.6.3 Clearance
3.7 Zone block plan
3.8 Carbon monoxide (CO) fire detector labelling
3.9 Fire suppression system alarms
3.9.1 Alarm output to FDCIE
3.9.2 Consultation between parties
3.9.3 Fire suppression system control
3.10 Equipment cabinets
3.10.1 Mechanical protection
3.10.2 Labelling
3.11 Manual call point (MCP)
3.11.1 General
3.11.2 MCP for fire alarm
3.11.3 MCP for emergency evacuation
3.11.4 MCP for non-evacuation emergencies
3.11.5 MCP for electric lock release
3.11.6 MCP for activation or inhibition of other functions
3.11.7 MCP operation
3.12 Power supply equipment (PSE)
3.12.1 General
3.12.2 Main power source
3.12.3 Standby power source
3.12.4 Power supply equipment rating
3.12.5 Standby power source capacity
3.12.6 Battery capacity calculation
3.12.7 PSE selection
3.12.8 Batteries
3.12.8.1 General
3.12.8.2 Battery cabling
3.13 Remote indicators for fire detectors
3.13.1 General
3.13.2 Concealed spaces
3.13.3 Restricted access
3.13.4 Air-handling system
3.14 Smoke and fire door control
3.14.1 General
3.14.2 Sliding fire doors and fire shutters
3.15 Electric lock release
3.16 Suppression system monitoring devices
3.17 Building occupant warning systems
3.17.1 General
3.17.2 Evacuation signals
3.17.2.1 Audio transmission path splitters
3.17.3 Audibility of signals
3.17.4 Visual alarm signals
3.17.5 Live speech intelligibility
3.18 Components using radio transmission paths
3.19 Transmission path using cabling systems
3.19.1 General
3.19.2 Conductors
3.19.3 Cable marking
3.19.4 Terminations
3.19.5 Stress on conductors
3.19.6 Joints
3.20 Transmission path supervision
3.21 Transmission path protection
3.22 Location of detectors
3.22.1 General
3.22.2 Accessible service tunnels
3.22.3 Air-handling systems
3.22.4 Concealed spaces
3.22.4.1 General
3.22.4.2 Electrical equipment
3.22.5 Cupboards
3.22.6 Intermediate horizontal surfaces
3.22.7 Open grid ceilings
3.22.8 Sole occupancy units (SOUs)
3.22.9 Stairways and horizontal passageways
3.22.10 Transportable buildings
3.22.11 Vertical shafts and openings
3.22.12 Lift shafts
3.23 Locations where detectors are not required
3.24 Combination detectors
3.25 Commissioning of system
4 Heat detectors
4.1 Point-type heat detectors
4.1.1 General
4.1.2 Spacing between detectors for level surfaces
4.1.3 Spacing of detectors for sloping surfaces
4.1.4 Spacing from walls, partitions, or air supply openings
4.1.5 Reduced spacing
4.1.6 Spacing in concealed spaces requiring protection
4.2 Line-type heat detectors
5 Smoke and carbon monoxide (CO) fire detectors
5.1 Spacing and location
5.1.1 General
5.1.2 Spacing between detectors for level surfaces
5.1.3 Spacing between detectors for sloping surfaces
5.1.4 Spacing from walls, partitions, and air supply openings
5.1.5 Areas of high air change rates
5.1.6 Detectors on level surfaces with deep beams
5.1.7 Spacing in concealed spaces requiring protection
5.2 Aspirating smoke detectors
5.2.1 General
5.2.2 Design
5.2.3 Installation requirements
6 Flame detectors
6.1 Location
6.2 Spacing
7 Smoke control systems
7.1 General
7.2 System objectives
7.3 Consultation between parties
7.4 Automatic initiation of smoke control systems
7.4.1 General
7.4.2 Other fire safety systems and system control
7.5 Automatic smoke detection for system control
7.5.1 General
7.5.2 Detector location
7.5.2.1 General
7.5.2.2 Detection in circulation spaces
7.5.2.3 Detection in hot layer smoke control systems
7.5.3 Relative sensitivity of detectors
7.5.4 Location of detectors at doors to pressurized exits and lift landing doors
7.6 Miscellaneous systems
7.6.1 Scope
7.6.2 General
7.6.3 Special purpose systems
7.6.4 Single enclosures
7.6.5 Exhaust systems
7.6.5.1 Minor exhaust systems
7.6.5.2 Major exhaust systems
7.6.6 Supply air systems
7.6.6.1 Minor supply air systems
7.6.6.2 Major supply air systems
7.6.7 Exhaust duct heat detectors
7.6.8 Car park ventilation systems
7.6.8.1 General
7.6.8.2 Override control
7.6.8.3 Supply air smoke detectors
7.6.8.4 Operation in fire mode
7.6.8.5 Jet fan smoke detection
7.7 Supply air systems for smoke control
7.8 Kitchen exhaust hood systems
7.8.1 General
7.8.2 Operation under fire conditions
7.8.3 Override control
7.9 Shutdown systems — Operation in fire mode
7.10 Zone pressurization systems
7.10.1 Operation in fire mode
7.10.2 Override control
7.11 Hot layer smoke control systems
7.11.1 System arrangement
7.11.2 Operation in fire mode
7.11.3 Override control
7.12 Ancillary smoke or fire control equipment operation
7.13 Fire-isolated exit pressurization systems
7.13.1 Operation in fire mode
7.13.2 Override control
7.13.3 Supply air smoke detectors
7.14 Lift shaft pressurization system
7.14.1 General
7.14.2 Supply air smoke detectors in fans
7.14.3 Operation in fire mode
7.14.4 Override control
7.15 Fire fan control panel (FFCP)
7.15.1 Location
7.15.2 Function
7.15.3 Manual controls
7.15.4 Fire mode reset
7.15.5 Fan status indicators
7.15.6 Fault indication
7.15.7 Notices and labels
7.15.8 Operating instructions
7.16 System interface
7.16.1 General
7.16.2 Low level interface
7.16.3 High level interface equipment
7.16.4 Interface cabinet
7.17 Transmission paths
7.18 Documentation
7.18.1 Design documentation
7.18.2 Operating and maintenance instructions (as-installed documentation)
7.18.3 Smoke control operating instructions
Appendix A
A.1 General
A.2 Commissioning documentation
A.3 Checks and functional assessment
A.4 Baseline data, test results and documentation
Appendix B
B.1 Protection against mechanical damage
B.1.1 General
B.1.2 WSXX
B.1.3 WSX1
B.1.4 WSX2
B.1.5 WSX3
B.1.6 WSX4
B.1.7 WSX5
B.2 Examples of addressable detectors using transmission paths for smoke control
Appendix C
C.1 Battery capacity calculations
C.1.1 Typical FDAS IQ calculation
C.1.2 Typical FDAS IA calculation
C.2 Main power source calculations
C.2.1 Power supply requirement
Appendix D
Appendix E
Appendix F
Appendix G
Appendix H
H.1 General
H.2 SPL measurements required
H.3 Number and locations of SPL measurements
H.4 Measurement details
H.4.1 Background noise
H.4.2 Warning signals
Appendix I
I.1 Choice of measurement
I.2 Status of the sound system
I.3 Location of measurements
I.4 Measurement of speech transmission index (SPL)
I.5 Measurement of live speech SPL
Appendix J
Appendix K
Appendix L
L.1 Introduction
L.2 General notes on detectors
L.3 Heat detectors
L.3.1 General
L.3.2 Application
L.4 Smoke detectors
L.4.1 General
L.4.2 Application
L.4.2.1 General
L.4.2.2 Location considerations
L.4.2.3 Ceiling surfaces
L.4.2.4 Stratification
L.4.2.5 Airflow
L.4.2.6 Ducts
L.4.2.7 Special considerations
L.5 Multisensor detectors
L.6 Aspirating smoke detectors (ASD)
L.6.1 General
L.6.2 ASD selection
L.6.3 ASD configuration
L.6.4 Sensitivity classes
L.6.5 Sample hole sensitivity
L.6.6 Alarm thresholds
L.6.7 Flow sensing
L.6.8 Dust filters, detection and rejection
L.6.9 Applications
L.7 Carbon monoxide (CO) fire detectors
L.7.1 General
L.7.2 Application
L.7.2.1 General
L.7.2.2 Stratification
L.7.2.3 Airflow
L.7.2.4 Ducts
L.7.2.5 Special considerations
L.8 Flame detectors
L.8.1 General
L.8.2 Radiation sources and inhibitors
L.8.2.1 General
L.8.2.2 Radiation sources
L.8.2.3 Radiation inhibitors
L.8.3 Ultraviolet flame detection techniques
L.8.3.1 Detection principles
L.8.3.2 Advantages
L.8.3.3 Limitations
L.8.4 Single-channel infrared detectors
L.8.4.1 Detection principles
L.8.4.2 Advantages
L.8.4.3 Limitations
L.8.5 Ultraviolet or infrared (single-channel) flame detectors
L.8.5.1 Detection principles
L.8.5.2 Advantage
L.8.5.3 Limitations
L.8.6 Dual-channel infrared flame detectors
L.8.6.1 Detection principles
L.8.6.2 Advantages
L.8.6.3 Limitations
L.8.7 Triple-channel infrared flame detectors
L.8.7.1 Detection principles
L.8.7.2 Advantages
L.8.7.3 Limitations
Appendix M
Bibliography
Cited references in this standard
EN 54-28
Fire detection and fire alarm system, Part 28: Non-resettable line-type heat detectors
EN 54-22
Fire detection and fire alarm systems, Part 22: Resettable line-type heat detectors
[Current]
Corrigendum 1 - Amendment 2 - Degrees of protection provided by enclosures (IP Code)
[Current]
Tests for electric cables under fire conditions - Circuit integrity - Part 25: Procedures and requirements - Optical fibre cables
[Current]
Sound system equipment - Part 16: Objective rating of speech intelligibility by speech transmission index
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