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EN 61226:2010

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

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superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions
Superseded date

07-27-2021

Published date

03-12-2010

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

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.

Committee
CLC/TC 45AX
DocumentType
Standard
PublisherName
European Committee for Standards - Electrical
Status
Superseded
SupersededBy

Standards Relationship
UNE-EN 61226:2010 Identical
NF EN 61226 : 2010 Identical
CEI EN 61226 : 2011 Identical
VDE 0491-1 : 2010 Identical
I.S. EN 61226:2010 Identical
NEN EN IEC 61226 : 2010 Identical
DIN EN 61226 : 2010 Identical
BS EN 61226:2010 Identical
PN EN 61226 : 2010 Identical
IEC 61226:2009 Identical
BS EN 61340-2-3:2016 Identical

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

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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