IEC 61226-2009 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions《核电站.重要安全性仪器仪表.仪器仪表和控制功能分级》.pdf
《IEC 61226-2009 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions《核电站.重要安全性仪器仪表.仪器仪表和控制功能分级》.pdf》由会员分享,可在线阅读,更多相关《IEC 61226-2009 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions《核电站.重要安全性仪器仪表.仪器仪表和控制功能分级》.pdf(68页珍藏版)》请在麦多课文档分享上搜索。
1、 IEC 61226Edition 3.0 2009-07INTERNATIONAL STANDARD NORME INTERNATIONALENuclear power plants Instrumentation and control important to safety Classification of instrumentation and control functions Centrales nuclaires de puissance Instrumentation et contrle-commande importants pour la sret Classement
2、 des fonctions dinstrumentation et de contrle-commande IEC61226:2009 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2009 IEC, Geneva, Switzerland All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or m
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16、ication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 61226Edition 3.0 2009-07INTERNATIONAL STANDARD NORME INTERNATIONALENuclear power plants Instrumentation and control important to safety Classif
17、ication of instrumentation and control functions Centrales nuclaires de puissance Instrumentation et contrle-commande importants pour la sret Classement des fonctions dinstrumentation et de contrle-commande INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE VICS 27.
18、120.20 PRICE CODECODE PRIXISBN 2-8318-1052-1 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 61226 IEC:2009 CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.8 2 Normative references .8 3 Terms and definitions .9 4 Abbrev
19、iations .13 5 Classification scheme.13 5.1 General .13 5.2 Background .14 5.3 Description of categories.14 5.3.1 General .14 5.3.2 Category A 15 5.3.3 Category B 15 5.3.4 Category C 15 5.4 Assignment criteria16 5.4.1 General .16 5.4.2 Category A 16 5.4.3 Category B 16 5.4.4 Category C 17 6 Classific
20、ation procedure .17 6.1 General .17 6.2 Identification of design basis .18 6.3 Identification and classification of functions.18 7 Assignment of technical requirements to categories .21 7.1 General requirements21 7.2 Requirements related to functions .21 7.2.1 Basic requirements21 7.2.2 Specific req
21、uirements 22 7.3 Requirements related to I 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 collaborates closely wit
22、h 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 opinion on the relevant subj
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24、 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 to the maximum extent p
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