AS 2419.1 1994 (Incorporating Amendment Nos 1 and 2) AS 2419.1 1994 Australian Standard Fire hydrant installations Part 1: System design, installation and commissioning
This Australian Standard was prepared by Committee FP-009, Fire Hydrant Installations. It was approved on behalf of the Council of Standards Australia on 13 May 2004. This Standard was published on 18 July 1994. The following are represented on Committee FP-009: Australian Fire Authorities Council Australian Chamber of Commerce and Industry Australian Fire Protection Association Australian Building Codes Board Australian Valve Manufactures Association Civil Aviation Authority Commonwealth Fire Board Department of Bush Fire Services, N.S.W. Department of Defence, Australia Fire Protection Industry Association of Australia Institution of Engineers, Australia Melbourne Water Water Board, Sydney Illawarra Blue Mountains Western Australia Fire Brigades Board Keeping Standards up-to-date Standards are living documents which reflect progress in science, technology and systems. To maintain their currency, all Standards are periodically reviewed, and new editions are published. Between editions, amendments may be issued. Standards may also be withdrawn. It is important that readers assure themselves they are using a current Standard, which should include any amendments which may have been published since the Standard was purchased. Detailed information about Standards can be found by visiting the Standards Web Shop at www.standards.com.au and looking up the relevant Standard in the on-line catalogue. Alternatively, the printed Catalogue provides information current at 1 January each year, and the monthly magazine, The Global Standard, has a full listing of revisions and amendments published each month. Australian Standards TM and other products and services developed by Standards Australia are published and distributed under contract by SAI Global, which operates the Standards Web Shop. We also welcome suggestions for improvement in our Standards, and especially encourage readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at mail@standards.org.au, or write to the Chief Executive, Standards Australia, GPO Box 5420, Sydney, NSW 2001.
AS 2419.1 1994 (Incorporating Amendment Nos 1 and 2) Australian Standard Fire hydrant installations Part 1: System design, installation and commissioning First published as AS 2419 1980. Revised and redesignated AS 2419.1 1988. Second edition 1991. Third edition 1994. Reissued incorporating Amendment No. 1 (October 1996). Reissued incorporating Amendment No. 2 (December 2004). COPYRIGHT Standards Australia All rights are reserved. No part of this work may be reproduced or copied in any form or by any means, electronic or mechanical, including photocopying, without the written permission of the publisher. Published by Standards Australia GPO Box 5420, Sydney, NSW 2001, Australia ISBN 0 7262 8994 9
AS 2419.1 1994 2 PREFACE This Standard was prepared by the Standards Australia Committee FP/9 on Fire Hydrant Installations to supersede AS 2419 1991. This Standard incorporates Amendment No. 1 (October 1996) and Amendment No. 2 (December 2004). The changes required by the Amendment are indicated in the text by a marginal bar and amendment number against the clause, note, table, figure or part thereof affected. The Standard specifies requirements for the installation of fire hydrants which may, in certain cases, be supplemented by hydrants installed by water supply authorities on street mains. The changes in this Standard include a revision and expansion of the requirements for hydrant system design and acceptable sources of water supply, water supply capacities, and general revisions to account for advances in technology for materials, methods of installation and firefighting requirements. An Appendix setting out the reasoning and rationale behind the content of some of the more significant clauses in this Standard is provided. The paragraph numbers in the Appendix relate directly to the clause numbers in the Standard, i.e. Paragraph C2.1 relates to Clause 2.1. The terms normative and informative have been used in this Standard to define the application of the appendix to which they apply. A normative appendix is an integral part of a Standard, whereas an informative appendix is only for information and guidance.
3 AS 2419.1 1994 CONTENTS Page FOREWORD... 5 SECTION 1 SCOPE AND GENERAL 1.1 SCOPE... 6 1.2 NEW DESIGNS AND INNOVATIONS... 6 1.3 REFERENCED DOCUMENTS... 6 1.4 DEFINITIONS... 8 SECTION 2 BASIC REQUIREMENTS 2.1 PROVISION OF HYDRANTS WITHIN PROPERTIES... 10 2.2 TYPE OF SYSTEM... 10 2.3 PLANS AND SPECIFICATIONS... 10 2.4 QUALIFIED PERSONNEL... 11 SECTION 3 SOURCES OF WATER SUPPLY 3.1 ACCEPTABLE SOURCES OF WATER SUPPLY... 12 3.2 MINIMUM WATER SUPPLY QUANTITY... 12 3.3 ON-SITE WATER STORAGE... 12 3.4 COMBINED SYSTEMS... 13 SECTION 4 SYSTEM DESIGN 4.1 GENERAL... 14 4.2 HYDRAULIC DESIGN... 14 4.3 PROVISION AND LOCATION OF HYDRANTS... 14 4.4 PIPEWORK DESIGN... 16 4.5 REQUIRED SYSTEM PERFORMANCE... 21 SECTION 5 ANCILLARY EQUIPMENT 5.1 GENERAL... 29 5.2 FIRE HOSE AND FITTINGS... 29 5.3 CABINETS, ENCLOSURES OR RECESSES... 29 5.4 PRESSURE GAUGES... 31 5.5 PUMPED HYDRANT SYSTEMS... 32 5.6 FIRE BRIGADE BOOSTER CONNECTION... 34 5.7 BOOSTERS IN SERIES (RELAY) WITH PUMPS... 37 5.8 INTERNAL BOOSTER CONNECTION FOR PORTABLE RELAY PUMPS... 37 5.9 BACK-FLOW PREVENTION... 37 SECTION 6 PIPING, VALVES, AND FITTINGS 6.1 GENERAL... 39 6.2 PIPE AND PIPE FITTING SPECIFICATIONS... 39 6.3 SYSTEM PROTECTION AND IDENTIFICATION... 42 6.4 PIPE JOINTS AND GASKETS... 43 6.5 VALVES... 44 6.6 ORIFICE PLATE... 45 6.7 STRAINERS... 45 6.8 SUPPORT OF HYDRANT PIPEWORK... 46 6.9 THRUST BLOCKS AND ANCHORS... 49 6.10 PRESSURE GAUGES... 49
AS 2419.1 1994 4 Page SECTION 7 TESTING 7.1 GENERAL... 52 7.2 HYDROSTATIC TESTS... 52 7.3 COMMISSIONING TEST... 52 7.4 SYSTEMS WHICH INCORPORATE A BOOSTER... 53 7.5 SYSTEMS WITH BOOSTER IN SERIES (RELAY)... 53 7.6 SYSTEMS WHICH INCORPORATE A PUMP... 53 7.7 SYSTEMS WHICH INCORPORATE A TANK... 53 7.8 RECORDING OF TEST RESULTS... 53 APPENDICES A HYDRANT INSTALLATION WATER SUPPLY FLOW CHART... 55 B SPECIAL HAZARDS... 56 C GUIDE TO THE USE OF THIS STANDARD... 58 D SYSTEM RESISTANCE CURVES FOR COMBINED HYDRANT AND SPRINKLER SYSTEMS... 70 E WATER SUPPLY RELIABILITY... 72
5 AS 2419.1 1994 A1 A1 FOREWORD The purpose of this Standard is to specify a hydrant system which is compatible with the needs of today s fire authorities to extinguish more efficiently the outbreak of fire within premises. The availability of hydrants is essential to fire protection. Hydrants may be used to quell an initial outbreak of fire, quench a dying fire controlled by an automatic protection system, or provide the sole firefighting facility, e.g. after other means have been unsuccessful. Although hydrants are installed within properties for use by the fire authority, they may also be used by trained personnel. An adequate source of water is a fundamental consideration in the design of a fire hydrant installation and may comprise water from more than one source. A source based on a 4-h duration at the flow rates given in this Standard is regarded as the minimum safe quantity to enable fire brigades to extinguish a major fire and, if necessary, protect neighbouring properties. Hydrant systems should also be regularly inspected, tested, and maintained to ensure continued readiness for use. Where pump sets are installed, regular maintenance is essential. This Standard does not apply to (but may be referenced during design for) the protection of flammable and combustible liquid installations. Refer to Appendix B, special hazards for general guidance in such installations.
AS 2419.1 1994 6 STANDARDS AUSTRALIA Australian Standard Fire hydrant installations Part 1: System design, installation and commissioning SECTION 1 SCOPE AND GENERAL A1 A2 1.1 SCOPE This Standard sets out requirements for the design, installation, and commissioning of fire hydrant systems within properties. Requirements for maintenance of fire hydrant installations are given in AS 1851.4. NOTES: 1 Appendix A sets out a flow chart for water supply system design, and Appendix B provides guidance on fire hydrant installations for special hazards. 2 Appendix C was written in an advisory manner as a guide to the use of the Standard. The Appendix also contains charts and information for fire hose losses and nozzle discharge calculations. Comments to a particular Clause retain the clause number preceded by a C i.e. C1.12 is a comment relating to Clause 1.12. A C Clause is informative and not normative. 3 This Standard will be referenced in the Building Code of Australia by way of BCA Amendment 7 intended for publication in October 1994, therefore superseding the previous editions of AS 2419.1 1988 and 1991 which will be withdrawn 12 months from the date of publication of this edition. Users are advised that when BCA Amendment 7 is issued, it will not necessarily be gazetted in each State/Territory at the time of printing. 1.2 NEW DESIGNS AND INNOVATIONS Any alternative materials, designs, methods of assembly, procedures and the like that do not comply with specific requirements of this Standard, or are not mentioned in it, but give equivalent results to those specified are not necessarily prohibited, but the specified approval remains the prerogative of the regulatory authority. 1.3 REFERENCED DOCUMENTS The following documents are referred to in this Standard. AS 1074 Steel tubes and tubulars for ordinary service 1281 Cement mortar lining of steel pipes and fittings 1345 Identification of the contents of piping, conduits and ducts 1349 Bourdon tube pressure and vacuum gauges 1432 Copper tubes for plumbing, gasfitting and drainage applications 1530 Methods for fire tests on building materials, components and structures 1530.4 Part 4: Fire-resistance test of elements of building construction Standards Australia www.standards.com.au
The remainder of this document is available for purchase online at www.saiglobal.com/shop SAI Global also carries a wide range of publications from a wide variety of Standards Publishers: Click on the logos to search the database online.