AS 1670-1986

1 - AS 1670-1986 AUTOMATIC FIRE DETECTION AND ALARM SYSTEMS - SYSTEM DESIGN, INSTALLATION, AND COMMISSIONING
4 - PREFACE
5 - CONTENTS
6 - SECTION 1. SCOPE AND GENERAL
6 - 1.1 SCOPE.
6 - 1.2 APPLICATION.
6 - 1.3 REFERENCED DOCUMENTS.
6 - 1.4 DEFINITIONS.
6 - 1.4.1 Activating device
6 - 1.4.2 Addressable alarm zone facility
6 - 1.4.3 Addressable system
6 - 1.4.4 Ancillary control facility (ACF)
6 - 1.4.4A Alarm verification facility (AVF)
6 - 1.4.5 Approved and approval
6 - 1.4.6 Corridor
6 - 1.4.7 Cupboard
6 - 1.4.8 Distributed system
6 - 1.4.9 Extra-low voltage
6 - 1.4.10 Fault signal
6 - 1.4.11 Fire alarm signal
6 - 1.4.12 Level surface
6 - 1.4.13 Low voltage
6 - 1.4.14 Power supply
6 - 1.4.15 Protected area
6 - 1.4.16 Protected building
6 - 1.4.17 Regulatory Authority
6 - 1.5 COMPLIANCE WITH OTHER STANDARDS.
7 - SECTION 2. GENERAL REQUIREMENTS
7 - 2.1 COMPONENTS.
7 - 2.2 SEPARATION OF SYSTEMS.
8 - 2.3 LOCATION OF DETECTORS.
8 - 2.3.1 General.
8 - 2.3.2 Specific locations.
9 - 2.4 LOCATIONS WHERE PROTECTION IS NOT REQUIRED
9 - 2.5 INSTALLATION REQUIREMENTS.
9 - 2.5.1 General.
9 - 2.5.2 Separation of wiring systems.
10 - 2.5.3 Connection to existing installations.
10 - 2.5.4 Equipment and its location.
11 - 2.5.5 Alarm verification facilities.
11 - 2.6 ALARM ZONE LIMITATIONS.
11 - 2.6.1 General.
11 - 2.6.2 Addressable systems.
12 - 2.6.3 Distributed systems.
13 - 2.6.4 Intermixing of activating devices.
13 - 2.6.5 Air-handling equipment.
13 - 2.7 INSTALLATION WIRING.
13 - 2.7.1 General.
13 - 2.7.2 Conductors.
13 - 2.7.3 Cable colour.
13 - 2.7.4 Telephone-type cable.
13 - 2.7.5 Joints and terminations.
13 - 2.7.6 Telecom line connection.
13 - 2.7.7 Fire control station connection.
14 - SECTION 3. HEAT DETECTION SYSTEMS
14 - 3.1 SPACING AND LOCATION OF DETECTORS.
14 - 3.1.1 General.
14 - 3.1.2 Spacing between detectors for flat ceilings.
14 - 3.1.3 Spacing from walls, partitions, or registers.
14 - 3.1.4 Reduced spacing.
15 - 3.1.5 Spacing in concealed spaces requiring protection
15 - 3.2 LINE-TYPE SYSTEMS- TUBULAR OR CABLE
19 - SECTION 4. SMOKE DETECTION SYSTEMS
19 - 4.1 GENERAL.
19 - 4.2 SPACING AND LOCATION OF DETECTORS.
19 - 4.2.1 General.
19 - 4.2.2 Spacing between detectors.
19 - 4.2.3 Spacing from walls, partitions, or registers.
20 - 4.2.4 Reduction in spacing.
20 - 4.2.5 Spacing in concealed spaces requiring protection
20 - 4.2.6 Spacing where additional protection is required.
20 - 4.3 SAMPLING SYSTEMS.
20 - 4.3.1 General.
20 - 4.3.2 System design.
21 - 4.3.3 Air pumps (fans).
27 - SECTION 5. FLAME DETECTION SYSTEMS
27 - 5.1 GENERAL.
27 - 5.2 SPACING AND LOCATION OF DETECTORS.
27 - 5.3 ALARM ZONE LIMITATIONS.
27 - 5.4 FIXING OF DETECTORS.
27 - 5.5 DETECTOR LENSES.
27 - 5.6 PROTECTION FROM WEATHER.
28 - SECTION 6. COMMISSIONING AND MAINTENANCE
28 - 6.1 COMMISSIONING OF INSTALLATION.
28 - 6.1.1 General.
28 - 6.1.2 Commissioning tests.
29 - 6.2 INSTALLER’S STATEMENT, ‘AS-INSTALLED’ DIAGRAMS, AND COMMISSIONING REPORT
29 - 6.3 LOGBOOK.
29 - 6.4 MAINTENANCE.
30 - APPENDIX A - GUIDANCE FOR THE SELECTION OF DETECTORS
30 - A1 INTRODUCTION.
30 - A2 GENERAL NOTES ON DETECTORS.
30 - A3 HEAT DETECTORS.
30 - A3.1 General.
31 - A3.2 Application.
31 - A4 SMOKE DETECTORS.
31 - A4.1 General.
32 - A4.2 Application.
33 - A5 FLAME DETECTORS.
33 - A5.1 Flame characteristics.
33 - A5.2 Detector characteristics.
34 - A5.3 Selection.
34 - A5.4 Field of view considerations.
35 - A5.5 Spurious alarms.
37 - APPENDIX B - STANDARD FORM OF INSTALLER’S STATEMENT FOR FIRE ALARM SYSTEM
39 - APPENDIX C - FIRE ALARM SYMBOLS
41 - APPENDIX D - COMMISSIONING TEST REPORT
44 - ANNEX - LIST OF REFERENCED AND RELATED DOCUMENTS

Specifies requirements for the design, installation, and commissioning of automatic fire detection systems. Definitions, general requirements applicable to all systems, and specific requirements for heat detection, smoke detection, and flame detection systems are given. Appendices set out recommendations on the selection of types of thermal detectors and on the application of smoke and flame detectors, together with a standard form of installer's statement for a fire alarm system, fire alarm symbols, and commissioning test report.

This standard sets out requirements for the system design, installation, and commissioning of automatic fire detection and alarm systems and components that are manufactured in accordance with AS 1603.

First published as part of AS CA15-1961.
Second edition 1965.
Third edition 1967.
Fourth edition 1971.
Revised and redesignated AS 1670-1974.
Second edition 1983.
Revised and designated in part as AS 1670-1986.