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BS IEC 61225:2005

Withdrawn
Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

View Superseded by
withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

Nuclear power plants. Instrumentation and control systems important to safety. Requirements for electrical supplies
Available format(s)

Hardcopy , PDF

Withdrawn date

04-03-2019

Language(s)

English

Published date

31-01-2006

Publisher

British Standards Institution

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 for safety of a nuclear power plant.

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
NCE/8
DevelopmentNote
Supersedes BS 7674(1993) and 04/30115723 DC. (02/2006) Reviewed and confirmed by BSI, March 2015. (03/2015)
DocumentType
Standard
Pages
36
PublisherName
British Standards Institution
Status
Withdrawn
SupersededBy
Supersedes

Standards Relationship
IEC 61225:2005 Identical

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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Hardcopy - English
PDF - English
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