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IEC 61225:2005

Superseded
Superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

View Superseded by
superseded

A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 systems important to safety - Requirements for electrical supplies
Available format(s)

Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users

Superseded date

31-12-2021

Language(s)

English - French

Published date

13-12-2005

FOREWORD
0 Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 System requirements
   4.1 Function and description
   4.2 System divisions
   4.3 System boundaries
5 Requirements for redundancy, physical separation,
   and independence
   5.1 General
   5.2 Redundancy
   5.3 Physical separation
   5.4 Independence
   5.5 Reliability
6 Functional requirements for I&C power supplies
   6.1 Power supplies for I&C systems important to safety
   6.2 Batteries and chargers
   6.3 Inverters and converters
7 Requirements for distribution system design
   7.1 System aspects
   7.2 Load allocation
   7.3 Electrical aspects
8 Effects of loads on supply quality
   8.1 Electromagnetic interference
   8.2 Transients
   8.3 Load current
   8.4 Safety loads and non-safety loads
9 Characteristics of supplies given to individual loads
   9.1 DC supplies
   9.2 AC supplies
10 Monitoring and protection
   10.1 Monitoring
   10.2 Protection
11 Qualification of equipment
12 Testing
13 Maintenance
Annex A (informative) Examples of specifications

Specifies the performance and the functional characteristics of the electrical supply systems required for the instrumentation and control (I&C) systems important to safety of a nuclear power plant. Gives also guidance on the possible use of these supplies for other I&C systems. Defines the methods of application of the relevant IAEA Safety Guide NS-G-1.3.

Committee
TC 45/SC 45A
DevelopmentNote
To be applied in conjunction with IEC 61513, IEC 61226, IEC 60709, IEC 60880 and IEC 62138. (12/2005) Stability Date: 2017. (09/2017)
DocumentType
Standard
Pages
63
PublisherName
International Electrotechnical Committee
Status
Superseded
SupersededBy
Supersedes

Standards Relationship
BS IEC 61225:2005 Identical
GOST R IEC 61225 : 2011 Identical
NEN IEC 61225 : 2006 Identical
NEN-EN-IEC 61225:2020 Identical

07/30135879 DC : 0
BS IEC 62118:2000 Nuclear reactor instrumentation. Pressurized water reactor (PWR) of VVER design. Monitoring adequate cooling within the core during cold shutdown
NF EN 60964 : 2010 NUCLEAR POWER PLANTS - CONTROL ROOMS - DESIGN
CEI EN 60964 : 2011 NUCLEAR POWER PLANTS - CONTROL ROOMS - DESIGN
BS EN 61513:2013 Nuclear power plants. Instrumentation and control important to safety. General requirements for systems
IEC TR 63123:2017 Nuclear power plants - Instrumentation, control and electrical power systems - Guidance for the application of IEC 63147:2017/IEEE Std 497™ -2016 in the IAEA / IEC framework
04/30042162 DC : DRAFT AUG 2004
BS IEC 61513:2011 Nuclear power plants. Instrumentation and control important to safety. General requirements for systems
BS IEC 62117:1999 Nuclear reactor instrumentation. Pressurized light water reactors (PWR). Monitoring adequate cooling within the core during cold shutdown.
15/30309550 DC : DRAFT AUG 2015 BS IEC 62855 ED 1.0 - NUCLEAR POWER PLANTS - ELECTRICAL SYSTEMS - ELECTRICAL POWER SYSTEM ANALYSIS
IEC TR 62096:2009 Nuclear power plants - Instrumentation and control important to safety - Guidance for the decision on modernization
IEC 61497:1998 Nuclear power plants - Electrical interlocks for functions important to safety - Recommendations for design and implementation
I.S. EN 61839:2014 NUCLEAR POWER PLANTS - DESIGN OF CONTROL ROOMS - FUNCTIONAL ANALYSIS AND ASSIGNMENT
IEC 63147:2017 Criteria for accident monitoring instrumentation for nuclear power generating stations
VDE 0491-4 : 2001 NUCLEAR POWER PLANTS - PRESSURIZED LIGHT WATER REACTORS - MONITORING ADEQUATE COOLING WITHIN THE CORE DURING COLD SHUTDOWN
09/30176792 DC : 0 BS EN 61513 - NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - GENERAL REQUIREMENTS FOR SYSTEMS
BS IEC 61839 : 2000 NUCLEAR POWER PLANTS - DESIGN OF CONTROL ROOMS - FUNCTIONAL ANALYSIS AND ASSIGNMENT
BS IEC 61505:1998 Nuclear reactor instrumentation. Boiling water reactors (BWR). Stability monitoring
IEC 62118:2000 Nuclear reactor instrumentation - Pressurized water reactor (PWR) of VVER design - Monitoring adequate cooling within the core during shutdown
IEC 61343:1996 Nuclear reactor instrumentation - Boiling light water reactors (BWR) - Measurements in the reactor vessel for monitoring adequate cooling within the core
IEC TR 62235:2005 Nuclear facilities - Instrumentation and control systems important to safety - Systems of interim storage and final repository of nuclear fuel and waste
IEC 60964:2009 Nuclear power plants - Control rooms - Design
IEC 61513:2011 Nuclear power plants - Instrumentation and control important to safety - General requirements for systems
I.S. EN 60964:2010 NUCLEAR POWER PLANTS - CONTROL ROOMS - DESIGN
IEEE 497-2010 IEEE Standard Criteria for Accident Monitoring Instrumentation for Nuclear Power Generating Stations
BS IEC 60964 : 2009 NUCLEAR POWER PLANTS - CONTROL ROOMS - DESIGN
BS IEC 61497:1998 Nuclear power plants. Electrical interlocks for functions important to safety. Recommendations for design and implementation
BS EN 61839:2014 Nuclear power plants. Design of control rooms. Functional analysis and assignment
CEI EN 61513 : 2013 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - GENERAL REQUIREMENT FOR SYSTEMS
IEC 62117:1999 Nuclear reactor instrumentation - Pressurized light water reactors (PWR) - Monitoring adequate cooling within the core during cold shutdown
IEC 62855:2016 Nuclear power plants - Electrical power systems - Electrical power systems analysis
BS IEC 63147:2017 Criteria for accident monitoring instrumentation for nuclear power generating stations
BS IEC 62855:2016 Nuclear power plants. Electrical power systems. Electrical power systems analysis
PD IEC/TR 62096:2009 Nuclear power plants. Instrumentation and control important to safety. Guidance for the decision on modernization
I.S. EN 61513:2013 NUCLEAR POWER PLANTS - INSTRUMENTATION AND CONTROL IMPORTANT TO SAFETY - GENERAL REQUIREMENTS FOR SYSTEMS (IEC 61513:2011 (EQV))
BS EN 60964:2010 Nuclear power plants. Control rooms. Design
IEC 61250:1994 Nuclear reactors - Instrumentation and control systems important for safety - Detection of leakage in coolant systems
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 61839:2014 Nuclear power plants - Design of control rooms - Functional analysis and assignment

IEC 60038:2009 IEC standard voltages
IEC 61226:2009 Nuclear power plants - Instrumentation and control important to safety - Classification of instrumentation and control functions
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 60980:1989 Recommended practices for seismic qualification of electrical equipment of the safety system for nuclear generating stations
IEC 60146-2:1999 Semiconductor converters - Part 2: Self-commutated semiconductor converters including direct d.c. converters
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 60686:1980 Stabilized power supplies, a.c. output

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