BS 7674:1993

Superseded

View Superseded by

Nuclear power plants. Instrumentation and control systems important for safety. Requirements for electrical supplies

Available format(s)

Hardcopy , PDF

Superseded date

01-31-2006

Language(s)

English

Published date

07-15-1993

Publisher

British Standards Institution

Committees responsible
National foreword
Specification
1 Scope
2 Normative references
3 Definitions
4 System requirements
5 Requirements for independence, physical separation
and redundancy
6 Functional requirements for I & C power supplies
7 Requirements for distribution system design
8 Effects of influence conditions
9 Characteristics of supplies given to individual
loads
10 Monitoring and protection
11 Qualification of equipment
12 Testing
13 Maintenance
Figures
1 System boundary
2 DC power system
3 Non-interruptible a.c. power system
4 One division of the I & C power supply system
5 Example of I & C non-interruptible a.c. power system
6 Example of d.c. systems
Annex
A (informative) Examples of specifications

Specifies performance and functional characteristics of electrical supply systems.

Committee	NCE/8
DevelopmentNote	Also numbered as IEC 61225 Supersedes 91/77536 DC (10/2005)
DocumentType	Standard
Pages	22
PublisherName	British Standards Institution
Status	Superseded
SupersededBy	BS IEC 61225:2005
Supersedes	91/77536 DC : AUG 91

IEC 60146-4:1986	Semiconductor convertors. Part 4: Method of specifying the performance and test requirements of uninterruptible power systems
IEC 60038:2009	IEC standard voltages
IEC 60293:1968	Supply voltages for transistorized nuclear instruments
IEC 60801-4:1988	Electromagnetic compatibility for industrial-process measurement and control equipment - Part 4: Electrical fast transient/burst requirements
IEC 60478-1:1974	Stabilized power supplies, d.c. output. Part 1: Terms and definitions
IEC 60801-1:1984	Electromagnetic compatibility for industrial-process measurement and control equipment. Part 1: General introduction
IEC 60478-2:1986	Stabilized power supplies, d.c. output. Part 2: Rating and performance
IEC 60146-2:1999	Semiconductor converters - Part 2: Self-commutated semiconductor converters including direct d.c. converters
IEC 60639:1979	Nuclear reactors. Use of the protection system for non-safety purposes
IEC 60780:1998	Nuclear power plants - Electrical equipment of the safety system - Qualification
IEC 60557:1982	IEC terminology in the nuclear reactor field
IEC 60801-3:1984	Electromagnetic compatibility for industrial-process measurement and control equipment - Part 3: Radiated electromagnetic field requirements
IEC 60478-5:1993	Stabilized power supplies, d.c. output - Part 5: Measurement of the magnetic component of the reactive near field
IEC 60478-4:1976	Stabilized power supplies, d.c. output. Part 4: Tests other than radio-frequency interference
IEC 60709:2004	Nuclear power plants - Instrumentation and control systems important to safety - Separation
IEC 60478-3:1989	Stabilized power supplies, d.c. output. Part 3: Reference levels and measurement of conducted electromagnetic interference (EMI)
IEC 60801-2:1991	Electromagnetic compatibility for industrial-process measurement and control equipment - Part 2: Electrostatic discharge requirements
IEC 60686:1980	Stabilized power supplies, a.c. output