【AS澳大利亚标准】AS 7240.22 Fire detection and alarm systemsPart 22 Smokedetection equipment f.doc

AS 7240.222008AS 7240.222008Australian Standard®Fire detection and alarm systemsPart 22: Smoke-detection equipment for ducts (ISO 7240-22:2007, MOD)The Standard is downloaded from Standard SharingThis Australian Standard® was prepared by Committee FP-002, Fire Detection, Warning, Control and Intercom Systems. It was approved on behalf of the Council of Standards Australia on 27 May 2008.This Standard was published on 5 August 2008.The following are represented on Committee FP-002:Audio Engineering SocietyAustralasian Fire Authorities CouncilAustralian Building Codes BoardAustralian Chamber of Commerce and IndustryAustralian Electrical and Electronic Manufacturers AssociationAustralian Industry GroupAustralian Institute of Building SurveyorsCSIRO Manufacturing and Infrastructure TechnologyDeafness Forum of AustraliaDepartment of Defence (Australia)Fire Protection Association AustraliaInstitute of Security ExecutivesNational Electrical and Communications AssociationNational Fire Industry AssociationProperty Council of AustraliaThis Standard was issued in draft form for comment as DR 06575.Standards Australia wishes to acknowledge the participation of the expert individuals that contributed to the development of this Standard through their representation on the Committee and through the public comment period.Keeping Standards up-to-dateAustralian Standards® are living documents that 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 Between editions, amendments may be issued.Standards may also be withdrawn.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 that may have been published since the Standard was published.Detailed information about Australian Standards, drafts, amendments and new projects can be found by visiting www.standards.org.auStandards Australia welcomes suggestions for improvements, and encourages readers to notify us immediately of any apparent inaccuracies or ambiguities. Contact us via email at mailstandards.org.au, or write to Standards Australia, GPO Box 476, Sydney, NSW 2001.AS 7240.222008Australian Standard®Fire detection and alarm systemsPart 22: Smoke-detection equipment for ducts (ISO 7240-22:2007, MOD)First published as AS 7240.222008.COPYRIGHT© Standards AustraliaAll 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 476, Sydney, NSW 2001, AustraliaISBN 0 7337 8853 XiiiThe Standard is downloaded from Standard SharingPREFACEThis Standard was prepared by the Standards Australia Committee FP-002, Fire Detection, Warning, Control and Intercom Systems.This Standard is an adoption with national modifications and has been reproduced from ISO 7240-22:2007, Fire detection and fire alarm systems, Part 22: Smoke detection equipment for ducts, and has been varied as indicated to take account of Australian/New Zealand conditions.Variations to ISO 7240-22:2007 are indicated at the appropriate places throughout this Standard. Strikethrough (example) identifies ISO text, tables and figures which, for the purposes of this Australian Standard, are deleted. Where text, tables or figures are added, each is set in its proper place and identified by shading (example). Added figures are not themselves shaded, but are identified by a shaded border.As this Standard is reproduced from an International Standard, the following applies:(a) Its number does not appear on each page of text and its identity is shown only on the cover and title page.(b) In the source text this part of ISO 7420 should read this part of AS 7240.(c) A full point should be substituted for a comma when referring to a decimal marker. (d) Any French text on figures should be ignored.The term normative and informative are used in this Standard to define the application of the annex to which they apply. A normative annex is an integral part of a standard, whereas aninformative annex is only for information and guidance.CONTENTSPage1 Scope . . 12 Normative references . 13 Terms and definitions . 24 General requirements . 34.1 Compliance . 34.2 Visual alarm indication . 34.3 Connection of ancillary devices . 34.4 Monitoring of detachable detectors . 34.5 Manufacturer's adjustments . 34.6 On-site adjustment of response behaviour . 34.7 Marking . 44.8 Data . 44.9 Requirements for software-controlled smoke-detection equipment for ducts . 44.10 Radioactive materials. 65 Tests. . 65.1 General . 65.2 Repeatability . 95.3 Reproducibility . 105.4 Variation in supply parameters . 105.5 Dazzling . 115.6 Dry heat (operational) . 115.7 Cold (operational) . 125.8 Damp heat, steady state (operational). 135.9 Damp heat, steady state (endurance). 145.10 Sulfur dioxide, SO2, corrosion (endurance) . 155.11 Shock (operational) . 165.12 Impact (operational) . 175.13 Vibration, sinusoidal (operational) . 185.14 Vibration, sinusoidal (endurance) . 195.15 Air leakage . 205.16 Electromagnetic compatibility (EMC) immunity tests (operational) . 215.17 Fire sensitivity . 226 Test report . 24Annex A (normative) Smoke tunnel and fire test room arrangementfor response measurements . 25Annex B (normative) Test aerosol for response threshold value measurements . 26Annex C (normative) Smoke-measuring instruments. 27Annex D (normative) Apparatus for dazzling test . 31Annex E (normative) Apparatus for impact test . 32Annex F (informative) Air-leakage test apparatus . 34Annex G (normative) Smouldering (pyrolysis) wood fire (TF2) . 35Annex H (normative) Flaming plastics (polyurethane) fire (TF4). 37Annex I (informative) Information concerning the construction of the smoke tunnel. 39vThe Standard is downloaded from Standard SharingINTRODUCTIONSmoke-detection equipment for ducts (s.d.e.d.) is used as part of a fire detection system to sample the environment within air ducts of a building. Detection of smoke releases a signal to the connected control and indicating equipment and can be used as a signal to an air- handling system to prevent the spread of smoke within the building.A fire-detection and alarm system is required to function satisfactorily not only in the event of a fire, but also during and after exposure to conditions likely to be met in practice such as corrosion, vibration, direct impact, indirect shock and electromagnetic interference. Some tests specified are intended to assess the performance of the s.d.e.d. under such conditions.The performance of s.d.e.d. is assessed from results obtained in specific tests. This part of ISO 7240 is not intended to place any other restrictions on the design and construction of such equipment.www.standards.org.au© Standards AustraliaSTANDARDS AUSTRALIAAustralian StandardFire detection and alarm systemsPart 22: Smoke-detection equipment for ducts (ISO 7240-22:2007, MOD)Any table, figure or text of the international standard that is struck through is not part of this standard. Any Australian/New Zealand table, figure or text that is added is part of this standard and is identified by shading.1 ScopeThis part of ISO 7240 specifies requirements, test methods and performance criteria for smoke-detection equipment for ducts (s.d.e.d.) for use in fire-detection and fire alarm systems installed in buildings; see ISO 7240-1 AS 7240.1.The s.d.e.d. samples the air from a duct and detects smoke in the sample.NOTE 1 A common method of operation is to use differential pressure arising from airflow in the duct.Smoke detectors complying with ISO 7240-7 AS 7240.7 or other detectors complying with tests specified in this part of ISO 7240 may be used with the s.d.e.d.A common application for s.d.e.d. is to detect visible smoke, for which detectors using scattered light or transmitted light can be more suitable. However, requirements for detectors using ionization are also included in this part of ISO 7240 for use in applications where detection of less visible fire aerosols is desired.For the testing of other types of smoke detectors or smoke detectors working on different principles, this part of ISO 7240 can be used for guidance. Smoke detectors with special characteristics, developed for specific risks, are not covered.NOTE 2 Certain types of detectors contain radioactive materials. The national requirements for radiation protection differ from country to country and are not specified in this part of ISO 7240.2 Normative referencesThe following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. AS 1319, Safety signs for the occupational environment ISO 209-1, Wrought aluminium and aluminium alloys Chemical composition and forms of products Part 1: Chemical composition ISO 2919, Radiation protectionSealed radioactive sourcesGeneral requirements and classification ISO 7240-1, Fire detection and fire alarm systems Part 1: General and definition AS 7240.1, Fire detection and fire alarm systems Part 1: General and definition 43The Standard is downloaded from Standard SharingISO 7240-7:2003, Fire detection and fire alarm systems Part 7: Point-type smoke detectors using scattered light, transmitted light or ionizationAS 7240.7, Fire detection and fire alarm systems, Part 7: Point-type smoke detectors using scattered light, transmitted light or ionization (ISO 7407:2003, MOD)IEC 60068-1, Environmental testing Part 1: General and guidance AS 60068.1, Environmental testing, Part 1: General and guidance IEC 60068-2-1, Environmental testing Part 2: Tests. Tests A: Cold AS 60068.2.1, Environmental testing, Part 2: Tests. Tests A: Cold IEC 60068-2-2, Environmental testing Part 2: Tests. Tests B: Dry heatIEC 60068-2-6, Environmental testing Part 2: Tests Test Fc: Vibration (sinusoidal) AS 60068.2.6, Environmental testing, Part 2: TestsTest Fc: Vibration (sinusoidal) IEC 60068-2-27:1987, Environmental testing Part 2: Test Ea and guidance: Shock AS 60068.2.2