BS IEC 60515-2007 Nuclear power plants - Instrumentation important to safety - Radiation detectors - Characteristics and test methods《核电站 对安全性重要仪器 辐射探测器 特性和试验方法 》.pdf
《BS IEC 60515-2007 Nuclear power plants - Instrumentation important to safety - Radiation detectors - Characteristics and test methods《核电站 对安全性重要仪器 辐射探测器 特性和试验方法 》.pdf》由会员分享,可在线阅读,更多相关《BS IEC 60515-2007 Nuclear power plants - Instrumentation important to safety - Radiation detectors - Characteristics and test methods《核电站 对安全性重要仪器 辐射探测器 特性和试验方法 》.pdf(44页珍藏版)》请在麦多课文档分享上搜索。
1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58Radiation detectors Characteristics and test methodsICS 27.120.20Nuclear power plants Instrumentati
2、on important to safety BRITISH STANDARDBS IEC 60515:2007BS IEC 60515:2007This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 April 2007 BSI 2007ISBN 978 0 580 50497 6Amendments issued since publicationAmd. No. Date Commentscontract. Users are
3、responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.National forewordThis British Standard was published by BSI. It is the UK implementation of IEC 60515:2007. It supersedes BS 5548:1978 which is withdrawn. The UK participation in
4、its preparation was entrusted to Technical Committee NCE/8, Reactor instrumentation.A list of organizations represented on NCE/8 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a BS EN 60515:2007 IECINTERNATIONAL STANDARD 60515
5、Second edition2007-02Nuclear power plants Instrumentation important to safety Radiation detectors Characteristics and test methods Reference number CEI/IEC 60515:2007 BS EN 60515:2007 2 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope 8 2 Normative references .8 3 Terms and definitions .9 4 Abbreviations
6、.12 5 Functions of an ex-core detection system.12 6 Neutron sensitive materials.13 7 Description of different types of detectors .14 7.1 General .14 7.2 Neutron sensitive proportional counters .14 7.3 Ionization chambers.16 8 More detailed factors which influence the use and testing of neutron detec
7、tors 19 8.1 Pulse mode neutron detectors19 8.2 Current mode neutron detectors.21 9 General principles for detector operation.24 9.1 Detection basis conditions .24 9.2 Detector operating conditions.24 9.3 Limits due to the detector 24 9.4 Limits due to the measuring channel 25 9.5 Limits due to surro
8、unding gamma radiation 25 10 Connectors and cables .26 11 Characteristics of detectors including their cables and connectors .26 11.1 General .26 11.2 Detector mechanical data 26 11.3 Detector electrical and nuclear data .27 11.4 Connector mechanical data28 11.5 Connector electrical characteristics2
9、8 11.6 Cable mechanical data 29 11.7 Cable electrical characteristics.29 12 Test methods general 29 13 Factory tests 29 13.1 General .29 13.2 List of typical factory tests .30 13.3 Mechanical tests31 13.4 Specific tests for fission counters (see Figure 4).31 13.5 Specific tests for proportional coun
10、ter tubes.33 13.6 Specific tests for compensated ionization chambers (see Figure 3).34 13.7 Specific tests for uncompensated neutron sensitive d.c. ionization chambers (see Figure 2)37 13.8 Specific tests for d.c. ionization chambers for gamma radiation 39 3 BS EN 60515:2007 13.9 Specific test for c
11、urrent fluctuation (Campbelling) fission chambers 39 14 Qualification tests.40 14.1 Principles 40 14.2 Test sequence on a detector40 14.3 Test for environmental conditions.40 14.4 Seismic tests.40 Bibliography .41 Figure 1 Neutron sensitive proportional counter15 Figure 2 Diagram of an uncompensated
12、 ionization chamber16 Figure 3 Diagram of a compensated ionization chamber .17 Figure 4 Diagram of a fission counter .18 Table 1 Important connector mechanical factors .28 BS EN 60515:2007 4 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ NUCLEAR POWER PLANTS INSTRUMENTATION IMPORTANT TO SAFETY RADIATIO
13、N DETECTORS CHARACTERISTICS AND TEST METHODS FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to promote international co-operation on al
14、l questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as “IEC Publi
15、cation(s)”). Their preparation is entrusted to technical committees; 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. IE
16、C 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 op
17、inion 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
18、 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 IEC Publications transparent
19、ly 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 provides no marking procedure to indicate its approval and cannot be rende
20、red responsible for any equipment declared to be in conformity with an IEC Publication. 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 it
21、s 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 fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any oth
22、er 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 publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the
23、 subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60515 has been prepared by subcommittee 45A: Instrumentation and control of nuclear facilities, of IEC technical committee 45: Nuclear instrumentation. This second e
24、dition cancels and replaces the first edition published in 1975. This edition constitutes a technical revision. The revision of the standard is intended to accomplish the following: To clarify the definitions by including the thermal neutron fluence rate and the total neutron fluence rate. To up-dat
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