• BS EN 60129:1994

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    Specification for alternating current disconnectors and earthing switches

    Available format(s):  Hardcopy, PDF

    Superseded date:  03-10-2002

    Language(s):  English

    Published date:  15-12-1994

    Publisher:  British Standards Institution

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

    1. Scope
    2. Normal and special service conditions
    3. Definitions
    3.101 General terms
    3.102 Switching devices
    3.103 Parts of switching devices
    3.104 Operation (of a mechanical switching device)
    3.105 Characteristic quantities
    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
    4.101 Rated short-circuit making current
    4.102 Rated contact zone
    4.103 Rated mechanical terminal load
    4.104 Rated values of maximum force required for manual
          operation (under consideration)
    4.105 Behaviour when carrying rated peak withstand current
          and rated short-time withstand current
    4.106 Behaviour of earthing switches when making
          short-circuit currents
    4.107 Co-ordination of rated voltages, rated normal
          currents and rated peak withstand currents
    5. Design and construction
    5.1 Requirements for liquids in disconnectors and
          earthing switches
    5.2 Requirements for gases in disconnectors and earthing
    5.3 Earthing of disconnectors and earthing switches
    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 Nameplates
    5.101 Special requirements for earthing switches
    5.102 Requirements in respect of the isolating distance of
    5.103 Mechanical strength
    5.104 Position of the movable contact system and its
          indicating or signalling devices
    6. Type tests
    6.1 Dielectric tests
    6.2 Radio interference voltage (r.i.v.) tests
    6.3 Temperature-rise tests
    6.4 Measurement of the resistance of the main circuit
    6.5 Short-time and peak withstand current tests
    6.101 Tests to prove the short-circuit making performance
          of earthing switches
    6.102 Operating and mechanical endurance tests
    6.103 Operation under severe ice conditions
    6.104 Operation at the temperature limits
    7. Routine tests
    7.1 Power-frequency voltage withstand dry tests on the
          main circuit
    7.2 Voltage withstand tests on auxiliary and control
    7.3 Measurement of the resistance of the main circuit
    7.101 Mechanical operating tests
    8. Guide to the selection of switching devices for
    8.101 General
    8.102 Selection of rated vales for normal service
    9. Information to be given with enquiries, tenders and
    9.101 Information to be given with enquiries and orders
    9.102 Information to be given with tenders
    10. Rules for transport, storage, erection and
    10.1 Conditions during transport, storage and erection
    10.2 Erection
    10.3 Maintenance
    Annex ZA: Other international publications quoted in this
          standard with the references of the relevant
          European publications

    Abstract - (Show below) - (Hide below)

    Specifies requirements for alternating current disconnectors and earthing switches, their operating devices and auxiliary equipment, for voltages above 1000 V.

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

    Committee PEL/17
    Development Note SUPERSEDES BS 5253: 1990. DRAFT FOR COMMENT 91/21935 DC
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By

    Standards Referenced By This Book - (Show below) - (Hide below)

    BS 1075:1989 Specification for tungsten halogen lamps (non vehicle)
    BS EN 60517:1997 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
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