AS 1670 1986 Australian Standard Automatic fire detection and alarm systems System design, installation, and commissioning
This Australian standard was prepared by Committee FP/2, Automatic Fire Detection and Alarm Systems. It was approved on behalf of the Council of the Standards Association of Australia on 11 August 1986 and published on 6 October 1986. The following interests are represented on Committee FP/2: Attorney General s Department Australian Assembly of Fire Authorities Australian Electrical and Electronic Manufacturers Association Limited Australian Uniform Building Regulations Coordinating Council Board of Fire Commissioners of New South WAles Building Management Authority, Western Australia Building Owners and Managers Association of Australia Limited Commonwealth Fire Board Confederation of Western Australian Industry Department of Aviation Department of Housing and Construction Fire Protection Industry Association of Australia Limited Insurance Council of Australia Limited National Building Technology Centre Telecom Australia Review of Australian Standards. To keep abreast of progress in industry, Australian Standards are subject to periodic review and are kept up to date by the issue of amendments or new editions as necessary. It is important therefore that Standards users ensure that they are in possession of the latest edition, and any amendments thereto. Full details of all Australian Standards and related publications will be found in the Standards Australia Catalogue of Publications; this information is supplemented each month by the magazine The Australian Standard, which subscribing members receive, and which gives details of new publications, new editions and amendments, and of withdrawn Standards. Suggestions for improvements to Australian Standards, addressed to the head office of Standards Australia, are welcomed. Notification of any inaccuracy or ambiguity found in an Australian Standard should be made without delay in order that the matter may be investigated and appropriate action taken. This Standard was issued in draft form for comment as DR 83282.
AS 1670 1986 Australian Standard AUTOMATIC FIRE DETECTION AND ALARM SYSTEMS SYSTEM DESIGN, INSTALLATION, AND COMMISSIONING First published (as AS CA15)................. 1961 Revised.................................. 1965 Revised.................................. 1967 Revised.................................. 1971 AS 1670 first published...................... 1974 Second edition............................. 1983 Third edition.............................. 1986 Incorporating: Amdt 1 1987 Amdt 2 1988 Amdt 3 1988 PUBLISHED BY STANDARDS AUSTRALIA (STANDARDS ASSOCIATION OF AUSTRALIA) 1 THE CRESCENT, HOMEBUSH, NSW 2140 ISBN 0 7262 4354 X
PREFACE This edition of this standard was prepared by the Association s Committee on Automatic Fire Detection and Alarm Systems, to supersede AS 1670 1983, SAA Code for Automatic Fire Alarm Installations. Its preparation is concurrent with the issue of AS 1603 in a number of parts which cover the requirements for specific items of equipment to be used in an automatic fire detection and alarm system and installed in accordance with this standard. Maintenance requirements for fire detection and alarm equipment will be included in AS 1851, Maintenance of Fire Protection Equipment, Part 8, Fire Detection and Alarm Systems*. In this edition, changes have been made to some definitions and new terms have been included, terms deleted are circuit, circuit wiring and monitored. Changes have also been made to several clauses in Section 2 to expand the existing requirements, particularly revision of clauses covering detectors in return air ducts, location of the control and indication equipment for fire detection, separation from other systems and the intermixing of detection systems. Similar changes have been made to some of the clauses in Section 3, including spacings from walls or partitions and detector mounting. The area covered by each detector has been deleted and the travel distance of the fire plume has been used as the basis for determining detector spacing. The former Appendices A and B have been revised and now become Appendix A having sections for heat, smoke and flame detector application. * In course of preparation. Copyright STANDARDS AUSTRALIA Users of Standards are reminded that copyright subsists in all Standards Australia publications and software. Except where the Copyright Act allows and except where provided for below no publications or software produced by Standards Australia may be reproduced, stored in a retrieval system in any form or transmitted by any means without prior permission in writing from Standards Australia. Permission may be conditional on an appropriate royalty payment. Requests for permission and information on commercial software royalties should be directed to the head office of Standards Australia. Standards Australia will permit up to 10 percent of the technical content pages of a Standard to be copied for use exclusively in house by purchasers of the Standard without payment of a royalty or advice to Standards Australia. Standards Australia will also permit the inclusion of its copyright material in computer software programs for no royalty payment provided such programs are used exclusively in house by the creators of the programs. Care should be taken to ensure that material used is from the current edition of the Standard and that it is updated whenever the Standard is amended or revised. The number and date of the Standard should therefore be clearly identified. The use of material in print form or in computer software programs to be used commercially, with or without payment, or in commercial contracts is subject to the payment of a royalty. This policy may be varied by Standards Australia at any time.
CONTENTS Page SECTION 1. SCOPE AND GENERAL 1.1 SCOPE...................................................... 4 1.2 APPLICATION................................................ 4 1.3 REFERENCED DOCUMENTS................................... 4 1.4 DEFINITIONS................................................ 4 1.5 COMPLIANCE WITH OTHER STANDARDS...................... 4 SECTION 2. GENERAL REQUIREMENTS 2.1 COMPONENTS............................................... 5 2.2 SEPARATION OF SYSTEMS.................................... 5 2.3 LOCATION OF DETECTORS.................................... 6 2.4 LOCATIONS WHERE PROTECTION IS NOT REQUIRED........... 7 2.5 INSTALLATION REQUIREMENTS............................... 7 2.6 ALARM ZONE LIMITATIONS................................... 9 2.7 INSTALLATION WIRING....................................... 10 SECTION 3. HEAT DETECTION SYSTEMS 3.1 SPACING AND LOCATION OF DETECTORS...................... 11 3.2 LINE TYPE SYSTEMS TUBULAR OR CABLE.................. 12 SECTION 4. SMOKE DETECTION SYSTEMS 4.1 GENERAL................................................... 16 4.2 SPACING AND LOCATION OF DETECTORS...................... 16 4.3 SAMPLING SYSTEMS......................................... 17 SECTION 5. FLAME DETECTION SYSTEMS 5.1 GENERAL................................................... 24 5.2 SPACING AND LOCATION OF DETECTORS...................... 24 5.3 ALARM ZONE LIMITATIONS................................... 24 5.4 FIXING OF DETECTORS....................................... 24 5.5 DETECTOR LENSES.......................................... 24 5.6 PROTECTION FROM WEATHER................................ 24 SECTION 6. COMMISSIONING AND MAINTENANCE 6.1 COMMISSIONING OF INSTALLATION........................... 25 6.2 AS INSTALLED DIAGRAMS AND INSTALLER S STATEMENT..... 26 6.3 LOGBOOK................................................... 26 6.4 MAINTENANCE.............................................. 26 APPENDICES A GUIDANCE FOR THE SELECTION OF DETECTORS................ 27 B STANDARD FORM OF INSTALLER S STATEMENT FOR FIRE ALARM SYSTEM.............................................. 34 C FIRE ALARM SYMBOLS........................................ 36 D COMMISSIONING TEST REPORT................................ 38 ANNEX. LIST OF REFERENCED AND RELATED DOCUMENTS.......... 41
AS 1670 1986 4 STANDARDS ASSOCIATION OF AUSTRALIA Australian Standard for AUTOMATIC FIRE DETECTION AND ALARM SYSTEMS SYSTEM DESIGN, INSTALLATION, AND COMMISSIONING SECTION 1. SCOPE AND GENERAL 1.1 SCOPE. 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. 1.2 APPLICATION. All installations of automatic fire detection and alarm systems shall comply with the general requirements of Section 2, with the additional requirements of Section 3, Section 4, or Section 5 according to the detector type, and with the commissioning and maintenance requirements of Section 6. Manual call points installed in conjunction with an automatic fire detection and alarm system or as a separate system shall comply with the general installation requirements of this standard. Where an automatic fire detection and alarm system is ancillary to an automatic fire-extinguishing installation, the detection system shall comply with the appropriate requirements of this standard. NOTE: All pans of the building, unless protected by an automatic fire extinguishing system should be protected. This standard requires connection of the fire detection system to the fire authority, which may require the building to be fully protected. 1.3 REFERENCED DOCUMENTS. A list with titles of the documents referred to in this standard is given in the Annex. 1.4 DEFINITIONS. For the purpose of this standard, the definitions given in AS 2484.2 and the following apply: 1.4.1 Activating device a device capable of being operated automatically or manually to initiate an alarm signal, e.g. a detector, a manual call point, or a pressure switch. 1.4.2 Addressable alarm zone facility a facility which can identify at the control and indicating equipment (CIE) the status of individual or groups of activating devices on the same alarm zone circuit. 1.4.3 Addressable system a fire alarm and detection system that contains addressable alarm zone facilities or addressable control devices. 1.4.4 Ancillary control facility (ACF) that portion of the control and indicating equipment which on receipt of a signal initiates predetermined actions in external ancillary devices. 1.4.4A Alarm verification facility (AVF) that part of the CIE which provides an automatic resetting function for spurious alarm signals so that they will not initiate master alarm facility (MAF) or ACF functions inadvertently. 1.4.5 Approved and approval approved by, or the approval of, the Regulatory Authority. 1.4.6 Corridor a narrow enclosed thoroughfare, other than a lift lobby, not exceeding 3.5 m in width, and not used for trade or storage purposes. 1.4.7 Cupboard an enclosure with a door or doors, which is an integral part of the building. 1.4.8 Distributed system a fire alarm and detection system where sections of the control and indicating equipment are remotely located from the fire indicator panel or where subindicator panel(s) communicate with a main fire indicator panel. 1.4.9 Extra-low voltage that voltage defined in AS 3000. 1.4.10 Fault signal a signal which indicates the presence of a fault in the system. 1.4.11 Fire alarm signal a signal which indicates the presence of a fire or simulated fire condition. 1.4.12 Level surface any surface, roof, or ceiling which has a slope of less than 1 in 20. 1.4.13 Low voltage that voltage defined in AS 3000. 1.4.14 Power supply that portion of the control and indicating equipment (CIE) which supplies all voltages necessary for operation of the CIE. 1.4.15 Protected area an area of a building equipped with an automatic fire detection and alarm system installed in accordance with this standard. 1.4.16 Protected build ing a building equipped throughout with an automatic fire detection and alarm system installed in accordance with this standard or an automatic fire sprinkler system installed in accordance with AS 2118. 1.4.17 Regulatory Authority an Authority administering Acts of Parliament or Regulations under such Acts. NOTE: Where adoption of this standard is not a requirement of a Regulatory Authority but is a requirement of a body such as a relevant company or association, then that body, or their nominee such as the Insurance Council of Australia, may perform the functions of the Regulatory Authority for the purposes of this standard. If the detection and alarm system is one provided by Virtue of Statutory Regulations, the relevant department will have authority. If it is a matter of fire insurance, the relevant insurance company or association may have authority. 1.5 COMPLIANCE WITH OTHER STANDARDS. The fire detection and alarm system shall comply with the appropriate electrical safety requirements specified in AS 3000 and the individual parts of the installation shall comply with the appropriate Australian standards listed in the Annex. The individual equipment items shall be fully compatible to achieve stable and reliable performance as a system. COPYRIGHT
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