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  • EN 61226:2010

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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    Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions

    Available format(s): 

    Superseded date:  27-07-2021

    Language(s): 

    Published date:  12-03-2010

    Publisher:  European Committee for Standards - Electrical

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    Table of Contents - (Show below) - (Hide below)

    FOREWORD
    INTRODUCTION
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Abbreviations
    5 Classification scheme
    6 Classification procedure
    7 Assignment of technical requirements to categories
    Annex A (informative) - Examples of categories
    Bibliography
    Annex ZA (normative) - Normative references to
             international publications with their
             corresponding European publications

    Abstract - (Show below) - (Hide below)

    IEC 61226:2009 establishes a method of classification of the information and command functions for nuclear power plants, and the instrumentation and control systems and equipment that provide those functions, into categories that designate the importance to safety of the function. The resulting classification then determines relevant design criteria. Is applicable to all the information and command functions and the instrumentation and control systems and equipment that provide those functions. The main changes with respect to the previous edition are listed below: - to introduce a definition for 'non-hazardous stable state'; - to clarify limits of categories; - to clarify requirements related to equipment used for beyond design events.

    General Product Information - (Show below) - (Hide below)

    Committee CLC/TC 45AX
    Document Type Standard
    Publisher European Committee for Standards - Electrical
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS EN 61513:2013 Nuclear power plants. Instrumentation and control important to safety. General requirements for systems
    I.S. EN 61500:2011 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - DATA COMMUNICATION IN SYSTEMS PERFORMING CATEGORY A FUNCTIONS
    I.S. EN 62241:2015 NUCLEAR POWER PLANTS - MAIN CONTROL ROOM - ALARM FUNCTIONS AND PRESENTATION
    CEI EN 60964 : 2011 NUCLEAR POWER PLANTS - CONTROL ROOMS - DESIGN
    EN 60671:2011 Nuclear power plants - Instrumentation and control systems important to safety - Surveillance testing
    EN 60965:2016 Nuclear power plants - Control rooms - Supplementary control room for reactor shutdown without access to the main control room
    BS EN 60671:2011 Nuclear power plants. Instrumentation and control systems important to safety. Surveillance testing
    VDI/VDE 3528 Blatt 1:2017-06 Requirements of commercial grade products and criteria for their use in the instrumentation and control systems important to safety in nuclear power plants - General part
    CEI EN 60671 : 2012 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL SYSTEMS IMPORTANT TO SAFETY - SURVEILLANCE TESTING
    I.S. EN 60671:2011 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL SYSTEMS IMPORTANT TO SAFETY - SURVEILLANCE TESTING
    BS EN 62241:2015 Nuclear power plants. Main control room. Alarm functions and presentation
    CEI EN 61500 : 2012 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - DATA COMMUNICATION IN SYSTEMS PERFORMING CATEGORY A FUNCTIONS
    EN 62765-1:2017 Nuclear powers plants - Instrumentation and control important to safety - Management of ageing of sensors and transmitters - Part 1: Pressure transmitters
    CEI EN 60965 : 2012 NUCLEAR POWER PLANTS - CONTROL ROOMS - SUPPLEMENTARY CONTROL ROOM FOR REACTOR SHUTDOWN WITHOUT ACCESS TO THE MAIN CONTROL ROOM
    I.S. EN 60965:2016 NUCLEAR POWER PLANTS - CONTROL ROOMS - SUPPLEMENTARY CONTROL ROOM FOR REACTOR SHUTDOWN WITHOUT ACCESS TO THE MAIN CONTROL ROOM
    I.S. EN 60964:2010 NUCLEAR POWER PLANTS - CONTROL ROOMS - DESIGN
    BS EN 60965:2016 Nuclear power plants. Control rooms. Supplementary control room for reactor shutdown without access to the main control room
    CEI EN 61513 : 2013 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - GENERAL REQUIREMENT FOR SYSTEMS
    BS EN 61500:2011 Nuclear power plants. Instrumentation and control important to safety. Data communication in systems performing category A functions
    EN 61500:2011 Nuclear power plants - Instrumentation and control important to safety - Data communication in systems performing category A functions
    I.S. EN 61513:2013 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - GENERAL REQUIREMENTS FOR SYSTEMS (IEC 61513:2011 (EQV))
    I.S. EN 62765-1:2017 NUCLEAR POWERS PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - MANAGEMENT OF AGEING OF SENSORS AND TRANSMITTERS - PART 1: PRESSURE TRANSMITTERS
    BS EN 62765-1:2017 Nuclear powers plants. Instrumentation and control important to safety. Management of ageing of sensors and transmitters Pressure transmitters
    BS EN 60964:2010 Nuclear power plants. Control rooms. Design
    EN 60964:2010 Nuclear power plants - Control rooms - Design
    EN 61513:2013 Nuclear power plants - Instrumentation and control important to safety - General requirements for systems
    EN 62241:2015 Nuclear power plants - Main control room - Alarm functions and presentation

    Standards Referencing This Book - (Show below) - (Hide below)

    EN 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
    EN 60964:2010 Nuclear power plants - Control rooms - Design
    IEC 60050-394:2007 International Electrotechnical Vocabulary (IEV) - Part 394: Nuclear instrumentation - Instruments, systems, equipment and detectors
    IEC 60671:2007 Nuclear power plants - Instrumentation and control systems important to safety - Surveillance testing
    IEC 61839:2000 Nuclear power plants - Design of control rooms - Functional analysis and assignment
    IEC 61000-6-2:2016 Electromagnetic compatibility (EMC) - Part 6-2: Generic standards - Immunity standard for industrial environments
    IEC 60812:2006 Analysis techniques for system reliability - Procedure for failure mode and effects analysis (FMEA)
    IEC 62138:2004 Nuclear power plants - Instrumentation and control important for safety - Software aspects for computer-based systems performing category B or C functions
    IEC 61772:2009 Nuclear power plants - Control rooms - Application of visual display units (VDUs)
    IEC 60980:1989 Recommended practices for seismic qualification of electrical equipment of the safety system for nuclear generating stations
    IEC 61508-4:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 4: Definitions and abbreviations (see Functional Safety and IEC 61508)
    IEC 61508-3:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 3: Software requirements (see Functional Safety and IEC 61508)
    IEC 60987:2007+AMD1:2013 CSV Nuclear power plants - Instrumentation and control important to safety - Hardware design requirements for computer-based systems
    EN 60987:2015 Nuclear power plants - Instrumentation and control important to safety - Hardware design requirements for computer-based systems
    IEC 60965:2016 Nuclear power plants - Control rooms - Supplementary control room for reactor shutdown without access to the main control room
    EN 62138 : 2009 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT FOR SAFETY - SOFTWARE ASPECTS FOR COMPUTER-BASED SYSTEMS PERFORMING CATEGORY B OR C FUNCTIONS
    EN 60880 : 2009 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL SYSTEMS IMPORTANT TO SAFETY - SOFTWARE ASPECTS FOR COMPUTER-BASED SYSTEMS PERFORMING CATEGORY A FUNCTIONS
    EN 61000-6-2:2005/corrigendum:2005 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY FOR INDUSTRIAL ENVIRONMENTS (IEC 61000-6-2:2005)
    IEC 61771:1995 Nuclear power plants - Main control-room - Verification and validation of design
    IEC 60880:2006 Nuclear power plants - Instrumentation and control systems important to safety - Software aspects for computer-based systems performing category A functions
    IEC 60780:1998 Nuclear power plants - Electrical equipment of the safety system - Qualification
    IEC 61513:2011 Nuclear power plants - Instrumentation and control important to safety - General requirements for systems
    IEC 60709:2004 Nuclear power plants - Instrumentation and control systems important to safety - Separation
    IEC 60964:2009 Nuclear power plants - Control rooms - Design
    IEC 61508-1:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 1: General requirements (see Functional Safety and IEC 61508)
    IEC 61000-6-2 : 3.0:2016 ELECTROMAGNETIC COMPATIBILITY (EMC) - PART 6-2: GENERIC STANDARDS - IMMUNITY STANDARD FOR INDUSTRIAL ENVIRONMENTS
    IEC 61508-2:2010 Functional safety of electrical/electronic/programmable electronic safety-related systems - Part 2: Requirements for electrical/electronic/programmable electronic safety-related systems (see Functional Safety and IEC 61508)
    IEC TR 61838:2009 Nuclear power plants - Instrumentation and control important to safety - Use of probabilistic safety assessment for the classification of functions
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