• BS 6581:1995

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Common clauses for high-voltage switchgear and controlgear standards

    Available format(s):  Hardcopy, PDF

    Superseded date:  15-01-1997

    Language(s):  English

    Published date:  15-12-1995

    Publisher:  British Standards Institution

    Add To Cart

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

    1 Scope
    2 Normal and special service conditions
        2.1 Normal service conditions
        2.2 Special service conditions
    3 Definitions
    4 Rating
        4.1 Rated voltage
        4.2 Rated insulation level
        4.3 Rated frequency
        4.4 Rated normal current and temperature rise
        4.5 Rated short-time withstand current
        4.6 Rated peak withstand current
        4.7 Rated duration of short circuit
        4.8 Rated supply voltage of closing and opening
             devices and auxiliary circuits
        4.9 Rated supply frequency of operating devices and
             auxiliary circuits
        4 10 Rated pressure of compressed gas supply for
             operation
    5 Design and construction
        5.1 Requirements for liquids in switchgear and
             controlgear
        5.2 Requirements for gases in switchgear and
             controlgear
        5.3 Earthing of switching device
        5.4 Auxiliary equipment
        5.5 Dependent power closing
        5.6 Stored energy closing
        5.7 Operation of releases
        5.8 Low and high pressure interlocking devices
        5.9 Na?meplates
    6 Type tests
        6.1 Dielectric tests
        6.2 Radio interference voltage (r.i.v) test
        6.3 Temperature rise tests
        6.4 Measurement of the resistance of the main
             circuit
        6.5 Short time withstand current and peak withstand
             current tests
    7 Routine tests
        7.1 Power frequency voltage withstand dry tests on
             the main circuit
        7.2 Voltage withstand tests on auxiliary and
             control circuits
        7.3 Measurement of the resistance of the main
             curcuit
    8 Guide to the selection of switching devices for
        service
    9 Information to be given with enquireies, tenders and
        orders
    10 Rules for transport, storage, erection and
        maintenance
        10.1 Conditions during transport, storage and erection
        10.2 Erection
        10.3 Maintenance
    Annex A - Determination of minimum external creepage
              distances of outdoor insulators
    Appendix B - Determination of the equivalent r.m.s
                 value of a short time current during a
                 short circuit of a given duration
    Annex ZA - Special national conditions
    Annex ZB - Other international publications quoted in
                 this standard with the references of the
                 relevant European publications

    Abstract - (Show below) - (Hide below)

    Specifies common requirements for definitions, ratings, design and construction, type tests, routine tests, selection, enquiry/ordering information, rules for transport, storage and erection for equipment above 1000 V and up to 60 Hz.

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

    Committee PEL/17
    Development Note IMPLEMENTS HD 448. SUPERSEDES BS 6581 1985
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    IEC 60480:2004 Guidelines for the checking and treatment of sulfur hexafluoride (SF6) taken from electrical equipment and specification for its re-use
    IEC 60038:2009 IEC standard voltages
    IEC 60270:2000+AMD1:2015 CSV High-voltage test techniques - Partial discharge measurements
    IEC 60050-441:1984 International Electrotechnical Vocabulary (IEV) - Part 441: Switchgear, controlgear and fuses
    IEC 60376:2005 Specification of technical grade sulfur hexafluoride (SF6) for use in electrical equipment
    CISPR 16:1987 CISPR specification for radio interference measuring apparatus and measurement methods
    IEC 60085:2007 Electrical insulation - Thermal evaluation and designation
    IEC 60296:2012 RLV Fluids for electrotechnical applications - Unused mineral insulating oils for transformers and switchgear
    IEC 60071-3:1982 Insulation co-ordination - Part 3: Phase-to-phase insulation co-ordination - Principles, rules and application guide
    IEC 60071-2:1996 Insulation co-ordination - Part 2: Application guide
    IEC 60059:1999+AMD1:2009 CSV IEC standard current ratings
    IEC 60507:2013 Artificial pollution tests on high-voltage ceramic and glass insulators to be used on a.c. systems
    IEC 60071-1:2006+AMD1:2010 CSV Insulation co-ordination - Part 1: Definitions, principles and rules
    • Access your standards online with a subscription

      Features

      • Simple online access to standards, technical information and regulations
      • Critical updates of standards and customisable alerts and notifications
      • Multi - user online standards collection: secure, flexibile and cost effective