ISO IEC 14762-2009 Information technology - Functional safety requirements for Home and Building Electronic Systems (HBES)《信息技术 家用和建筑物电子系统(HBES)用功能安全要求》.pdf
《ISO IEC 14762-2009 Information technology - Functional safety requirements for Home and Building Electronic Systems (HBES)《信息技术 家用和建筑物电子系统(HBES)用功能安全要求》.pdf》由会员分享,可在线阅读,更多相关《ISO IEC 14762-2009 Information technology - Functional safety requirements for Home and Building Electronic Systems (HBES)《信息技术 家用和建筑物电子系统(HBES)用功能安全要求》.pdf(36页珍藏版)》请在麦多课文档分享上搜索。
1、 ISO/IEC 14762 Edition 1.0 2009-01 INTERNATIONAL STANDARDInformation technology Functional safety requirements for home and building electronic systems (HBES) ISO/IEC 14762:2009(E) THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 ISO/IEC, Geneva, Switzerland All rights reserved. Unless otherwi
2、se specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either IEC or IECs member National Committee in the country of the requester. If you have any questi
3、ons about ISO/IEC copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or your local IEC member National Committee for further information. IEC Central Office 3, rue de Varemb CH-1211 Geneva 20 Switzerland Email: inmailiec.ch Web: www.i
4、ec.ch About the IEC The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes International Standards for all electrical, electronic and related technologies. About IEC publications The technical content of IEC publications is kept under const
5、ant review by the IEC. Please make sure that you have the latest edition, a corrigenda or an amendment might have been published. Catalogue of IEC publications: www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria (reference number, text, technical committee,
6、). It also gives information on projects, withdrawn and replaced publications. IEC Just Published: www.iec.ch/online_news/justpub Stay up to date on all new IEC publications. Just Published details twice a month all new publications released. Available on-line and also by email. Electropedia: www.el
7、ectropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French, with equivalent terms in additional languages. Also known as the International Electrotechnical Vocabulary online. Customer Service Centre:
8、www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance, please visit the Customer Service Centre FAQ or contact us: Email: csciec.ch Tel.: +41 22 919 02 11 Fax: +41 22 919 03 00 ISO/IEC 14762 Edition 1.0 2009-01 INTERNATIONAL STANDARD Informa
9、tion technology Functional safety requirements for home and building electronic systems (HBES) INTERNATIONAL ELECTROTECHNICAL COMMISSION M ICS 35.200 PRICE CODE ISBN 2-8318-1026-1 2 14762 ISO/IEC:2009(E) CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope.7 2 Normative references .7 3 Terms, definitions and
10、abbreviations 8 4 Conformance10 5 General requirements.11 5.1 General .11 5.2 Method of establishment for the requirements .11 5.2.1 General .11 5.2.2 HBES application environment 11 5.2.3 Sources of hazards11 5.2.4 Hazardous events12 5.2.5 Derivation of requirements.12 6 Requirements for functional
11、 safety .12 6.1 General .13 6.2 Power feeding .13 6.2.1 Safe restart after power is restored (1) 13 6.2.2 Product marking and instructions prevent risk of wrong connections (3) (6)13 6.2.3 Product construction and design prevent wrong connections .13 6.3 Environment14 6.3.1 Product designed for appl
12、ication environment and specified temperature range (7)14 6.3.2 Resistance to abnormal heat and prevention of fire propagation (8).14 6.3.3 Withstand of mechanical stress appropriate to the application(s) (9)14 6.4 Lifetime .14 6.5 Reasonably foreseeable misuse14 6.5.1 Minimization of accidental dow
13、nload of wrong application software or parameters (15).14 6.5.2 Proper configuration and related parameters (15)15 6.5.3 Detection and/or indication of missing or incompletely configured products during configuration process (15) 15 6.6 Software and communication.15 6.6.1 Development process complia
14、nce with ISO 9000 or similar standards (16) .15 6.6.2 Check for proper operation of product software and integrity of the configuration (16) 15 6.6.3 Limitation of the traffic load imposed on the communication medium (12) (17) 15 6.6.4 Proper function of product and exclusion of hazards on reception
15、 of messages from multiple sources (23) 16 6.6.5 Defined state after a system reset (if any) (24) 16 6.6.6 Restricted access to manual configuration of system parameters (24) .16 6.6.7 Disturbed communication 16 6.7 Remote operations 17 14762 ISO/IEC:2009(E) 3 6.7.1 General recommendations.17 6.7.2
16、Within a single building or in its immediate vicinity.17 6.7.3 From outside the building 18 6.7.4 Management18 Annex A (informative) Example of a method for the determination of safety integrity levels .20 A.1 General 20 A.2 Terms and definitions .20 A.3 As low as reasonably practicable (ALARP) and
17、tolerable risk concepts 21 Annex B (informative) Hazards and development of necessary functional safety requirements 22 Annex C (informative) Some examples of non safety related HBES applications28 C.1 General 28 C.2 Example 1: Oven28 C.3 Example 2: Devices presenting a high potential risk of hazard
18、28 C.4 Example 3: Mains plugs, socket outlets and circuits .29 C.5 Example 4: Water temperature adjustment .29 Bibliography30 Figure A.1 Risk reduction General concept .20 Table 1 Requirements for avoiding inadvertent operations and possible ways to achieve them 19 Table A.1 Example of risk classifi
19、cation of accidents .21 Table A.2 Interpretation of risk classes 21 Table B.1 Safety requirements and risk reduction 22 4 14762 ISO/IEC:2009(E) INFORMATION TECHNOLOGY FUNCTIONAL SAFETY REQUIREMENTS FOR HOME AND BUILDING ELECTRONIC SYSTEMS (HBES) FOREWORD 1) ISO (International Organization for Standa
20、rdization) and IEC (International Electrotechnical Commission) form the specialized system for worldwide standardization. National bodies that are members of ISO or IEC participate in the development of International Standards. Their preparation is entrusted to technical committees; any ISO and IEC
21、member body interested in the subject dealt with may participate in this preparatory work. International governmental and non-governmental organizations liaising with ISO and IEC also participate in this preparation. 2) In the field of information technology, ISO and IEC have established a joint tec
22、hnical committee, ISO/IEC JTC 1. Draft International Standards adopted by the joint technical committee are circulated to national bodies for voting. Publication as an International Standard requires approval by at least 75 % of the national bodies casting a vote. 3) The formal decisions or agreemen
23、ts of IEC and ISO on technical matters express, as nearly as possible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC and ISO member bodies. 4) IEC, ISO and ISO/IEC publications have the form of recommendations
24、 for international use and are accepted by IEC and ISO member bodies in that sense. While all reasonable efforts are made to ensure that the technical content of IEC, ISO and ISO/IEC publications is accurate, IEC or ISO cannot be held responsible for the way in which they are used or for any misinte
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