1、Nuclear facilities Instrumentation and control systems important to safety Centralized systems for continuous monitoring of radiation and/or levels of radioactivityBS IEC 61504:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06IEC 61504 Edition 2.0 2017-05 INTERNAT
2、IONAL STANDARD NORME INTERNATIONALE Nuclear facilities Instrumentation and control systems important to safety Centralized systems for continuous monitoring of radiation and/or levels of radioactivity Installations nuclaires Systmes dinstrumentation et de contrle-commande importants pour la sret Sys
3、tmes centraliss pour la surveillance en continu des rayonnements et/ou des niveaux de radioactivit IEC61504:2017-05(en-fr) National forewordThis British Standard is the UK implementation of IEC 61504:2017. It supersedes BS IEC 61504:2000, which is withdrawn.The UK participation in its preparation wa
4、s entrusted to Technical Committee 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 participate in this preparation. IEC
5、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 international consensus of opin
6、ion 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 reasonable efforts are made to e
7、nsure 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 IEC Publications transparently
8、 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 conformity. Independent certifica
9、tion 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 publication. 7) No liability shall a
10、ttach 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, or for costs (including legal f
11、ees) 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 correct application of this publica
12、tion. 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 61504 has been prepared by subcommittee 45A: Instrumentati
13、on, control and electrical systems of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation. This second edition cancels and replaces the first edition of IEC 61504, published in 2000, and the first edition of IEC 61559-2, published by subcommittee 45B in 2002, and constitutes a
14、 technical revision. This standard is to be read in conjunction with IEC 61559-1. This edition includes the following significant technical changes with respect to the previous edition: a) It supplements IEC 61559-1 and integrates IEC 61559-2. BS IEC 61504:2017 4 IEC 61504:2017 IEC 2017 INTERNATIONA
15、L ELECTROTECHNICAL COMMISSION _ NUCLEAR FACILITIES INSTRUMENTATION AND CONTROL SYSTEMS IMPORTANT TO SAFETY CENTRALIZED SYSTEMS FOR CONTINUOUS MONITORING OF RADIATION AND/OR LEVELS OF RADIOACTIVITY FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standar
16、dization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes Inter
17、national Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate
18、 in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between t
19、he two organizations. 2) The formal decisions or agreements of IEC 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 National Committees. 3) IEC Publications ha
20、ve the form of recommendations for international use and are accepted by IEC National Committees in that sense. While all reasonable 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 mis
21、interpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding nati
22、onal or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services
23、carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of this publication. 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
24、 Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or indirect, 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 dr
25、awn to the Normative references cited in this publication. Use of the referenced publications is indispensable for the correct 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 no
26、t be held responsible for identifying any or all such patent rights. International Standard IEC 61504 has been prepared by subcommittee 45A: Instrumentation, control and electrical systems of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation. This second edition cancels and
27、replaces the first edition of IEC 61504, published in 2000, and the first edition of IEC 61559-2, published by subcommittee 45B in 2002, and constitutes a technical revision. This standard is to be read in conjunction with IEC 61559-1. This edition includes the following significant technical change
28、s with respect to the previous edition: a) It supplements IEC 61559-1 and integrates IEC 61559-2. IEC 61504:2017 IEC 2017 5 b) It describes integration of functions including equipment such as those covered by IEC 60761-1, IEC 60761-2, IEC 60761-3, IEC 60761-4, IEC 60761-5, IEC 60768, IEC 60861, IEC
29、 60910, IEC 60951-1 IEC 60951-2, IEC 60951-3, IEC 60951-4, IEC 60951-5, IEC 61031, IEC 61250, IEC 62302 and IEC 62303. c) It establishes requirements for integration in centralized systems as defined by IEC 62705. The text of this standard is based on the following documents: FDIS Report on voting 4
30、5A/1135/FDIS 45A/1149/RVD Full information on the voting for the approval of this International Standard can be found in the report on voting indicated in the above table. This document has been drafted in accordance with the ISO/IEC Directives, Part 2. The committee has decided that the contents of
31、 this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or amended. BS IEC 61504:2017 6 IEC 61504:2
32、017 IEC 2017 INTRODUCTION a) Technical background, main issues and organisation of the standard Advances in distributed system technology have led to the introduction of centralized programmable digital systems for radiation monitoring into nuclear facilities. IEC 61559 was introduced in 1996 to add
33、ress centralized systems for radiation monitoring in non-reactor nuclear facilities. That standard primarily focused upon category C functions, such as area monitoring and excluded nuclear power plant applications. As IEC 61559 was being released, subcommittee 45A determined that it would be useful
34、to develop a similar standard to address nuclear power plant application of plant-wide radiation monitoring systems, at that time. The intent was that IEC 61504 would parallel IEC 61559 would integrate or directly reference the other nuclear power standards that are relevant to plant-wide radiation
35、monitoring. IEC 61504 was published on 2000-05. As IEC 61559 was in the final release process, subcommittee 45B recognized the need to broaden the scope of that standard to include other applications of centralized radiation monitoring in nuclear facilities. These broader applications included, for
36、example, monitoring of plant discharges, interlock of control functions, and environmental monitoring. IEC 61559-2 was developed to cover these broader functions, including category B functions, in non-reactor nuclear facilities and was published on 2002-06. In 2004, the scope of subcommittee 45A st
37、andards was extended from “Reactor instrumentation” to “Instrumentation and control system of nuclear facilities”. This Standard reflects this increased scope of application and merges the extant requirements of IEC 61504 with those in IEC 61559-2. Hence this Standard comes to cover not only nuclear
38、 power plants but also nuclear facilities other than nuclear power plants. b) Situation of the current Standard in the structure of the IEC SC 45A standard series IEC 61504 is the third level in the hierarchy of SC 45A standards. This standard provides centralized systems for radiation monitoring fo
39、r nuclear facilities. This standard is applicable to the centralized systems for radiation monitoring to be used for functions important to safety in nuclear facilities. IEC 62705 provides the guidance for the radiation monitoring system (RMS) on the application of existing IEC/ISO standards coverin
40、g design and qualification of system and equipment for RMS. IEC 62705 is the supplements of IEC 61513 and it is not intended that IEC 62705 limits the application of other IEC 61513 requirements to RMS lifecycle. IEC 61513 is the first level standard of SC 45A standards, and provides general require
41、ments for I it covers power supply systems including the supply BS IEC 61504:2017 8 IEC 61504:2017 IEC 2017 systems of the I it adapts them and completes them to fit the nuclear context and coordinates with the IEC 62443 series. At level 2, regarding control rooms, IEC 60964 is the entry document fo
42、r the IEC SC 45A control rooms standards and IEC 62342 is the entry document for the IEC SC 45A ageing management standards. NOTE 1 It is assumed that for the design of I it adapts them and completes them to fit the nuclear context and coordinates with the IEC 62443 series. At level 2, regarding con
43、trol rooms, IEC 60964 is the entry document for the IEC SC 45A control rooms standards and IEC 62342 is the entry document for the IEC SC 45A ageing management standards. NOTE 1 It is assumed that for the design of I interlock of control functions to prevent or to mitigate accidental release of radi
44、oactive material; radiation and environmental monitoring functions to support monitoring of and response to accidents; provide information to process control or safety systems for use in control or interlock functions. This document defines the communication criteria to link distributed radiation mo
45、nitoring equipment in the facility, integrates data processing, storage, optimization, and correlation of data flow and displays, and provides criteria for the interface between monitors of different safety classes. It will not directly apply to the design and testing of detection and measurement as
46、semblies except as necessary to define the interface with the central computer. Requirements for these assemblies are contained in existing standards. This document describes the integration of functions including equipment such as those described in IEC 60761-1, IEC 60761-2, IEC 60761-3, IEC 60761-
47、4, IEC 60761-5, IEC 60768, IEC 60861, IEC 60910, IEC 60951-1 IEC 60951-2, IEC 60951-3, IEC 60951-4, IEC 60951-5, IEC 61031, IEC 61250, IEC 62302 and IEC 62303, into a centralized system. The requirements of system-level components (central computer, subsystem computers, operator consoles, and interc
48、onnections) are discussed. For detector assemblies, processing assemblies and alarm assemblies, this document contains only the requirements needed to allow connection into the central computer. The standards referenced above contain the specific requirements for these components. This document iden
49、tifies requirements pertinent to the integration of the above functions into a centralized system. Requirements for general and design characteristics, electrical performance requirements and tests, mechanical performance and tests, software performance requirements and tests, environmental characteristics performance requirements and tests and documentation are considered by referring to IEC 62705. Certain complete centralized systems for radiation monitoring may be entirely implemented with direct-connected analogue/r
