BS EN 62340-2010 Nuclear power plants - Instrumentation and control systems important to safety - Requirements for coping with common cause failure (CCF)《核电站 重要安全性仪器仪表和控制系统 应对共因失效的.pdf
《BS EN 62340-2010 Nuclear power plants - Instrumentation and control systems important to safety - Requirements for coping with common cause failure (CCF)《核电站 重要安全性仪器仪表和控制系统 应对共因失效的.pdf》由会员分享,可在线阅读,更多相关《BS EN 62340-2010 Nuclear power plants - Instrumentation and control systems important to safety - Requirements for coping with common cause failure (CCF)《核电站 重要安全性仪器仪表和控制系统 应对共因失效的.pdf(26页珍藏版)》请在麦多课文档分享上搜索。
1、Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 25/10/2010 08:55, Uncontrolled Copy, (c) BSIg49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58i
2、mportant to safety Requirements for coping with common cause failure (CCF) ICS 27.120.20Nuclear power plants Instrumentation and control systems BRITISH STANDARDBS EN 62340:2010BS EN 62340:2010Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 25/10/2010 08:55, Uncontrolled Copy, (c) BSIThis Bri
3、tish Standard was published under the authority of the Standards Policy and Strategy Committee on 31 March 2008 BSI 2010ISBN 978 0 580 68114 1Amendments/corrigenda issued since publicationDate Comments 31 July 2010 This corrigendum renumbers BS IEC 62340:2007 as BS EN 62340:2010on request to its sec
4、retary.This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard is the UK implementation of EN 623
5、40:2010. It is identical to IEC 62340:2007. It supersedes BS IEC 62340:2007 which is withdrawn.The UK participation in its preparation was entrusted to Technical Committee NCE/8, Reactor instrumentation.A list of organizations represented on this committee can be obtained EUROPEAN STANDARD EN 62340
6、NORME EUROPENNE EUROPISCHE NORM May 2010 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2010 CENELEC - All rights of exploitation i
7、n any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 62340:2010 E ICS 27.120.20 English version Nuclear power plants - Instrumentation and control systems important to safety - Requirements for coping with Common Cause Failure (CCF) (IEC 62340:2007) Centrales nuclaires de
8、puissance - Systmes dinstrumentation et de contrle commande importants pour la sret - Exigences permettant de faire face aux Dfaillances de Cause Commune (DCC) (CEI 62340:2007) Kernkraftwerke - Leittechnische Systeme mit sicherheitstechnischer Bedeutung - Anforderungen zur Beherrschung von Versagen
9、aufgrund gemeinsamer Ursache (IEC 62340:2007) This European Standard was approved by CENELEC on 2010-05-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alt
10、eration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by
11、translation under the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmar
12、k, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Licensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 25/1
13、0/2010 08:55, Uncontrolled Copy, (c) BSIForeword The text of the International Standard IEC 62340:2007, prepared by SC 45A, Instrumentation and control of nuclear facilities, of IEC TC 45, Nuclear instrumentation, was submitted to the CENELEC formal vote for acceptance as a European Standard and was
14、 approved by CENELEC as EN 62340 on 2010-05-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest da
15、te by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-05-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2013-05-01 Annex ZA has been added by CENELEC. As stated in th
16、e nuclear safety Directive 2009/71/EURATOM, Chapter 1, Article 2, item 2, Member States are not prevented from taking more stringent safety measures in the subject-matter covered by the Directive, in compliance with Community law. In a similar manner, this European Standard does not prevent Member S
17、tates from taking more stringent nuclear safety measures in the subject-matter covered by this European Standard.” _ Endorsement notice The text of the International Standard IEC 62340:2007 was approved by CENELEC as a European Standard without any modification. BS EN 62340:2010EN 62340:2010 (E) 2 L
18、icensed Copy: Wang Bin, ISO/EXCHANGE CHINA STANDARDS, 25/10/2010 08:55, Uncontrolled Copy, (c) BSICONTENTS INTRODUCTION.4 1 Scope.7 2 Normative references .8 3 Terms and definitions .8 4 Abbreviations .12 5 Conditions and strategy to cope with CCF 13 5.1 General .13 5.2 Characteristics of CCF 13 5.3
19、 Principal mechanisms for CCF of digital I b) to additionally require the implementation of independent I c) to give an overview of the complete scope of requirements relevant to CCF, but not to overlap with fields already addressed in other standards. These are referenced. This standard emphasises
20、the need for the complete and precise specification of the safety functions, based on the analysis of design basis accidents and consideration of the main plant safety goals. This specification is the pre-requisite for generating a comprehensive set of detailed requirements for the design of I b) be
21、tween I c) between redundant channels of the same I b) propagation of physical effects in the hardware (e.g. high voltages); and c) avoidance of specific faults and vulnerabilities within the I b) the ability of the systems to perform their functions is unaffected by the presence of the effects resu
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