BS IEC 62646-2016 Nuclear power plants Control rooms Computer-based procedures《核电站 控制室 基于计算机的规程》.pdf
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1、Nuclear power plants Control rooms Computer-based proceduresBS IEC 62646:2016BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of IEC62646:2016.It supersedes BS IEC 62646:2012 which is withdrawn.The UK par
2、ticipation in its preparation was entrusted to TechnicalCommittee NCE/8, Instrumentation, Control any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also partic
3、ipate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an
4、international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all r
5、easonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply
6、 IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of co
7、nformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publi
8、cation. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect,
9、or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the corr
10、ect application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 62646 has been prepared by
11、subcommittee 45A: Instrumentation, control and electrical systems of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation. This second edition cancels and replaces the first edition published in 2012. This edition constitutes a technical revision. This edition includes the foll
12、owing significant technical changes with respect to the previous edition: a) clarification of the way in which the standard is to be used in conjunction with related standards (in 1.4); b) replacement, when necessary, of HMI system by DPDS (abbreviation added in Clause 4); c) new titles for 5.2.2 an
13、d 5.2.3 to more closely represent their content; d) text improvement in 5.2.2, to present the CBP system as a part of the I e) text improvement in 5.2.3 and 7.2 to clarify links between safety and CBP; BS IEC 62646:2016 6 IEC 62646:2016 IEC 2016 f) new definition of CPB families in 5.3; g) addition
14、of generic recommendations for computerization in 5.4.2; h) addition of generic recommendations for CBP guidance in 5.4.3; i) improvements regarding use of CBP in 5.4.4; j) addition of 5.6, named “Design extension conditions”; k) addition of reference standards in 6.2.1; l) addition of a criterion r
15、elated to detail compatibility between CBP and operating formats in 6.2.2; m) addition of references related to HMI in 6.2.3; n) addition of 7.3 to deal with HMI aspects; o) text improvement regarding integration of the CBP system into the DPDS in 7.3; p) text improvement regarding implementation of
16、 the CBP into a system independent of the DPDS in 7.4; q) text improvement regarding the CBP system failure in 7.6; r) note added to detail the different types of feedbacks in 8.5.4; s) text improvement to detail interactions between operators and procedure based automation in 8.6.2; t) text improve
17、ment regarding design of CBP to control the plant in 8.6.3; u) clarification of the content of the V v) clarification regarding CBP programming in 9.4; w) inversion of subclauses 9.4 and 9.5; x) clarification of the content and requirements of the V y) change of title of 9.7. The text of this standa
18、rd is based on the following documents: FDIS Report on voting 45A/1098/FDIS 45A/1110/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Pa
19、rt 2. IEC 62646 is to be read in conjunction with IEC 60964:2009 and IEC 61839:2000. BS IEC 62646:2016IEC 62646:2016 IEC 2016 7 The committee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in
20、 the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the
21、correct understanding of its contents. Users should therefore print this document using a colour printer. BS IEC 62646:2016 8 IEC 62646:2016 IEC 2016 INTRODUCTION a) Technical background, main issues and organisation of the standard This IEC standard focuses on computerisation of procedures used by
22、the operating staff. Procedures have always contributed to a large extent to nuclear power plant (NPP) safety and availability and, now, the use of computer technology to provide enhanced guidance to the plant operators is increasing and becoming current practice. This standard also provides guidanc
23、e for the decision of the extent to which the procedures should be computerised. It is intended that the standard be used by nuclear power plant designers, utilities operating staff, systems evaluators and by regulatory inspectors. In June 2013 during the IEC SC 45A meeting held in Moscow, the decis
24、ion was made to revise IEC 62646 with the lessons learned from the Tokyo Electric Power Company (TEPCO) Fukushima Daiichi accident and the late comments from the national committee of Canada. The resulting improvements are listed in the Foreword of the Standard. b) Situation of the current standard
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