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  • BS 7674:1993

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    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.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 systems important for safety. Requirements for electrical supplies

    Available format(s):  Hardcopy, PDF

    Superseded date:  31-01-2006

    Language(s):  English

    Published date:  15-07-1993

    Publisher:  British Standards Institution

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

    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

    Abstract - (Show below) - (Hide below)

    Specifies performance and functional characteristics of electrical supply systems.

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

    Committee NCE/8
    Development Note Also numbered as IEC 61225 Supersedes 91/77536 DC (10/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    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
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