AS 2941 2002 AS 2941 Australian Standard Fixed fire protection installations Pumpset systems
This Australian Standard was prepared by Committee FP-008, Fire Service Pumps. It was approved on behalf of the Council of Standards Australia on 21 June 2002 and published on 2 September 2002. The following are represented on Committee FP-008: Association of Consulting Engineers, Australia Association of Hydraulic Services Consultants, Australia Australasian Fire Authorities Council Australasian Railways Association Australian Chamber of Commerce and Industry Australian Pump Manufacturers Association Fire Protection Association, Australia 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 Standards may also be withdrawn.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 Australia web site 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 Australian Standard, has a full listing of revisions and amendments published each month. 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.com.au, or write to the Chief Executive, Standards Australia International Ltd, GPO Box 5420, Sydney, NSW 2001. This Standard was issued in draft form for comment as DR 00079.
AS 2941 2002 Australian Standard Fixed fire protection installations Pumpset systems Originated as AS 2941 1987. Previous edition 1995. Third edition 2002. COPYRIGHT Standards Australia International 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 International Ltd GPO Box 5420, Sydney, NSW 2001, Australia ISBN 0 7337 4642 X
AS 2941 2002 2 PREFACE This Standard was prepared by the Standards Australia Committee FP-008, Fire Service Pumps, to supersede AS 2941 1995. The objective of the Standard is to provide regulatory authorities and fire protection system designers with requirements for pumpset systems to suit various types of fire protection systems such that a reasonable degree of protection for life and property from fire may be achieved. These requirements are based on sound engineering principles, test data and field experience. Although the installation of a pumphouse is not a requirement of this Standard, the Committee has considered the fire pumpset and its ancillary equipment as being ideally located in a pumphouse. Requirements are established for the selection, installation and operation of fire pumps, pump drivers and associated equipment. However, the Standard does not consider the number, disposition or types of driver considered appropriate for a given fixed fire protection system. The term driver is used in lieu of the term engine or motor. The committee does not consider the initiation of the starting sequence outside the pumphouse to be within the scope of this Standard. Instead, it has considered the processing of signals entering the pumphouse. The Standard provides minimum performance requirements for pumpsets including motors, engines, fire pump controllers, batteries and related ancillaries. The Standard requires that pumpsets be shop tested as an assembly, that is, the pump driver and fire pump controller are to be checked as a working combination (and appropriate test certification issued) prior to dispatch from the pumpset assembler s works. Further testing is required following final installation on site, and the Standard requires the incorporation of a flow-measuring device at each pumpset, unless provided elsewhere, to facilitate commissioning and subsequent periodic testing. The Standard requires that each pump be provided with circulation relief to protect the pump from damage when exposed to extended periods of operation at or near shut-off head. It also requires that some pumps be provided with a pressure-relief/flow control valve to protect downstream piping from overpressurization and the pump against suction and discharge recirculation. Circulation and pressure-relief flow control requirements are addressed in Section 3. This edition includes requirements for residential sprinkler system and domestic sprinkler system pumpsets. Maintenance requirements for fire pumpsets are given in AS 1851.14, Maintenance of fire protection equipment, Part 14: Pumpset systems. The symbols used in this Standard comply with those given in HB20, Graphical symbols for fire protection drawings, and have been developed from ISO Standards. The typical illustrations are in diagrammatic form only. 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. This Standard incorporates commentary on some of the clauses. The commentary directly follows the relevant clause, is designated by C preceding the clause number and is printed in italics in a box. The commentary is for information and guidance.
3 AS 2941 2002 CONTENTS Page SECTION 1 SCOPE AND GENERAL 1.1 SCOPE... 5 1.2 APPLICATION... 5 1.3 REFERENCED DOCUMENTS... 5 1.4 DEFINITIONS... 5 SECTION 2 WATER SUPPLIES 2.1 GENERAL... 9 2.2 ACCEPTABLE SOURCES OF SUPPLY... 9 2.3 QUALITY OF WATER... 9 2.4 FLOODED SUCTION... 9 2.5 SUCTION... 9 SECTION 3 GENERAL REQUIREMENTS FOR FIRE PROTECTION PUMPSETS 3.1 PERFORMANCE CHARACTERISTICS... 10 3.2 TYPES OF PUMPS... 13 3.3 TYPES OF DRIVERS... 15 3.4 PUMP/DRIVER CONNECTION... 15 3.5 BASEPLATE... 15 3.6 PIPEWORK (see also Section 11)... 15 3.7 VALVES... 16 3.8 VISIBILITY OF DISCHARGE... 18 3.9 PRESSURE GAUGES... 18 3.10 FLOW-MEASURING DEVICES... 18 3.11 STARTING AND CONTROL... 19 3.12 ELECTRICAL REQUIREMENTS... 19 3.13 MARKING... 19 3.14 PUMPSET MANUALS... 20 3.15 PUMPSET CONFIGURATIONS... 20 SECTION 4 SPECIFIC REQUIREMENTS FOR FIRE PROTECTION PUMPS 4.1 GENERAL... 27 4.2 END-SUCTION PUMPS... 29 4.3 AXIALLY SPLIT CASE PUMPS (HORIZONTAL OR VERTICAL SHAFT)... 29 4.4 MULTISTAGE CENTRIFUGAL PUMPS... 29 4.5 TURBINE TYPE CENTRIFUGAL PUMPS (VERTICAL SHAFT)... 30 4.6 DRIVERS FOR VERTICAL TURBINE PUMPS... 32 SECTION 5 REQUIREMENTS FOR PRESSURE MAINTENANCE PUMPS 5.1 GENERAL... 33 5.2 GENERAL REQUIREMENTS... 33 SECTION 6 FIRE HOSE REEL PUMPSETS 6.1 GENERAL... 35 6.2 PREASSEMBLED FIRE HOSE REEL PUMPSETS... 35 6.3 TYPES... 35 6.4 OPERATION... 35 6.5 ELECTRICAL... 36 6.6 VALVES... 36 6.7 UNIONS... 36 6.8 MAXIMUM ALLOWABLE WORKING PRESSURE... 36 6.9 MARKING... 36
AS 2941 2002 4 Page SECTION 7 RESIDENTIAL/DOMESTIC SPRINKLER PUMPSETS 7.1 GENERAL... 38 7.2 PREASSEMBLED RESIDENTIAL/DOMESTIC SPRINKLER PUMPSETS... 38 7.3 PUMPSET TYPE... 38 7.4 OPERATION... 38 7.5 ELECTRICAL... 38 7.6 VALVES... 39 7.7 UNIONS... 39 7.8 MAXIMUM ALLOWABLE WORKING PRESSURE... 39 7.9 MARKING... 39 SECTION 8 ELECTRIC DRIVERS AND CONTROLLERS 8.1 ELECTRIC DRIVERS... 41 8.2 ELECTRIC CONTROLLERS... 41 8.3 WIRING... 45 SECTION 9 COMPRESSION-IGNITION DRIVERS AND CONTROLLERS 9.1 GENERAL REQUIREMENTS... 46 9.2 DRIVER PERFORMANCE... 46 9.3 DRIVER SYSTEMS... 47 9.4 COMPRESSION-IGNITION DRIVER CONTROLLERS... 52 9.5 ELECTRICAL CONNECTIONS ON ENGINE... 55 9.6 SPARE PARTS... 55 SECTION 10 SHOP TESTING AND CERTIFICATION 10.1 GENERAL... 60 10.2 HYDROSTATIC TESTS... 60 10.3 PERFORMANCE TESTS... 60 10.4 CERTIFICATION... 62 SECTION 11 SITING AND INSTALLATION 11.1 GENERAL... 63 11.2 TEMPERATURE... 63 11.3 LOCATION... 63 11.4 LIGHTING... 63 11.5 VENTILATION... 63 11.6 DRAINAGE... 63 11.7 PLINTHS... 63 11.8 PROTECTION OF THE OVERALL SYSTEM AGAINST DAMAGE DUE TO MOVEMENT OR PRESSURE... 63 11.9 IDENTIFICATION OF PIPEWORK... 63 SECTION 12 COMMISSIONING TESTING... 64 APPENDICES A REFERENCED DOCUMENTS... 65 B BORES FOR WATER SUPPLY DEDICATED TO FIREFIGHTING... 67 C GUIDELINES FOR THE SELECTION OF DRIVERS... 70 D OPERATIONAL WARNING SIGNS (TYPICAL)... 72 E WIRING SYSTEMS RATING... 73 F THE PUMPHOUSE... 75 G GUIDE TO EXHAUST SYSTEM SIZING... 76 H TYPICAL PERFORMANCE TEST DATA SHEETS... 78 I COMMISSIONING TESTS... 80
5 AS 2941 2002 STANDARDS AUSTRALIA Australian Standard Fixed fire protection installations Pumpset systems SECTION 1 SCOPE AND GENERAL 1.1 SCOPE This Standard specifies requirements for pumpset systems, generally represented by the equipment contained in Figures 3.4 and 3.5, for use with fixed fire protection installations such as sprinkler, hydrant, water spray, and hose reel systems. It covers water supplies and specific requirements for pumps, drivers, fire pump controllers, and auxiliary equipment. Requirements for installation and acceptance testing for electrical and compression-ignition drivers are also included. NOTE:Some special fire pump installations, e.g., at petrochemical and petroleum plants and small rural installations may require variations from the requirements of this Standard. 1.2 APPLICATION Pumpset systems shall comply with the relevant sections of this Standard as follows: (a) Water supplies... Section 2. (b) Pumpsets... Section 3. (c) Pumps...Section 4, 5, 6, or 7, as appropriate. (d) Drivers and fire pump controllers... Section 8 or 9, as appropriate. (e) Proving tests for pumpsets...section 10. (f) Installation of pumpsets...section 11. (g) Acceptance tests for pumpset installations...section 12. NOTE:The regulatory authorities may authorize certain variations to this Standard to accommodate special field situations, e.g., petrochemical and petroleum plants or small rural installations. 1.3 REFERENCED DOCUMENTS A list of referenced documents is given in Appendix A. 1.4 DEFINITIONS For the purposes of this Standard, the definitions given in AS 2484.1 and AS 2484.2 and those below apply. 1.4.1 Approved Listed in the Register of accredited products, issued by Scientific Services Laboratory (SSL), as (a) complying with the requirements of this Standard; or www.standards.com.au Standards Australia
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