• BS 5524(1992) : 1992 AMD 9211

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.

    SPECIFICATION FOR GAS-INSULATED METAL-ENCLOSED SWITCHGEAR FOR RATED VOLTAGES OF 72.5 kV AND ABOVE

    Available format(s): 

    Superseded date:  15-01-1997

    Language(s): 

    Published date:  23-11-2012

    Publisher:  British Standards Institution

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

    Committees responsible
    National foreword
    Foreword
    1 Scope
    2 Normal and 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
           operating mechanisms
    4.101 Rated density of gas for insulation
    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
    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 Degree of protection
    5.102 Internal fault
    5.103 Enclosures
    5.104 Partitions
    5.105 Pressure relief
    5.106 Disconnectors and earthing switches
    5.107 Interlocks
    5.108 Noise
    5.109 Provisions for dielectric tests on cables
    6 Type tests
    6.1 Dielectric tests
    6.2 Radio interference voltage (RIV) 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 Verification of making and breaking capacities
    6.102 Mechanical operation tests
    6.103 Verification of the degree of protection for
           auxiliary circuits and moving parts
    6.104 Proof tests for enclosures
    6.105 Weatherproofing test
    6.106 Test under conditions of arcing due to an
           internal fault
    6.107 Thermal stability test
    6.108 Operation tests at limit temperatures
    6.109 Gas tightness tests
    7 Routine tests
    7.1 Power-frequency voltage tests on the main circuit
    7.2 Dielectric tests on auxiliary and control
           circuits
    7.3 Measurement of the resistance of the main circuit
    7.101 Partial discharge measurement
    7.102 Pressure tests of enclosures
    7.103 Gas tightness tests
    7.104 Mechanical operation tests
    7.105 Tests of auxiliary electrical, pneumatic and
           hydraulic devices
    7.106 Verification of the correct wiring
    7.107 Tests after erection on site
    8 Guide to the selection of the switchgear for
           service
    National annex NA (informative)

    Abstract - (Show below) - (Hide below)

    Gives requirements for gas-insulated metal-enclosed switchgear in which the insulation is obtained, at least partly, by an insulating gas other than air at atmospheric pressure, for alternating current of voltages of 72,5 kV and above, for indoor and outdoor installation, and for service frequencies up to and including 60 Hz. The term 'switchgear' is used for 'gas-insulated metal-enclosed switchgear'. The gas-insulated metal-enclosed switchgear consists of individual components directly connected together and able to operate only in this manner. Completes and amends, the various relevant standards applying to the individual components constituting gas-insulated metal-enclosed switchgear. BS AMD 9211 RENUMBERS THIS STANDARD

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

    Committee PEL/92
    Development Note Supersedes BS 5524(1987), 87/21834 DC and 93/200463 DC. Renumbered and superseded by BS EN 60517. (04/2005)
    Document Type Standard
    Publisher British Standards Institution
    Status Superseded
    Superseded By
    Supersedes

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

    BS EN 50068:1991 WROUGHT STEEL ENCLOSURES FOR GAS FILLED HIGH VOLTAGE SWITCHGEAR AND CONTROLGEAR
    BS EN 50089:1992 Specification for cast resin partitions for metal-enclosed gas-filled high-voltage switchgear and controlgear

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

    BS 923-2(1980) : 1980 GUIDE ON HIGH-VOLTAGE TESTING TECHNIQUES - TEST PROCEDURES
    BS 4727-1:GRP02(1980) : 1980 GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - COMMON TO POWER TELECOMMUNICATIONS & ELECTRONICS - ELECTRICAL & MAGNETIC DEVICES TERMINOLOGY
    BS 4727-2:GRP06(1985) : 1985 GLOSSARY OF ELECTROTECHNICAL POWER TELECOMMUNICATION ELECTRONICS LIGHTING AND COLOUR TERMS - TERMS PARTICULAR TO POWER ENGINEERING - SWITCHGEAR & CONTROLGEAR TERMINOLOGY INCLUDING FUSE TERMINOLOGY
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