We noticed you’re not on the correct regional site. Switch to our AMERICAS site for the best experience.
  • AS 2086-1995

    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    Add to Watchlist
    This Standard has been added successfully to your Watchlist
    Please visit My Watchlist to see all standards that you are watching.
    Please log in or to add this standard to your Watchlist.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    We could not add this standard to your Watchlist.
    Please retry or contact support for assistance.
    You have already added this standard to your Watchlist.
    Visit My Watchlist to view the full list.

    A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 72.5 kV

    Available format(s):  Hardcopy, PDF 1 User, PDF 3 Users, PDF 5 Users, PDF 9 Users

    Superseded date:  30-06-2017

    Language(s): 

    Published date:  01-01-1995

    Publisher:  Standards Australia

    Add to Watchlist

    Add To Cart

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

    1 - AS 2086-1995 A.C. METAL-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1kV AND UP TO AND INCLUDING 72.5 kV
    4 - PREFACE
    6 - CONTENTS
    8 - SECTION ONE - GENERAL
    8 - 1. Scope
    8 - SECTION TWO - SERVICE CONDITIONS
    8 - 2. Nominal and special service conditions
    9 - SECTION THREE - TERMS AND DEFINITIONS
    9 - 3. Definitions
    9 - 3.101 Switchgear and controlgear
    9 - 3.102 Metal-enclosed switchgear and controlgear
    10 - 3.103 Transport unit
    10 - 3.104 Functional unit
    10 - 3.105 Enclosure
    10 - 3.106 Compartment
    10 - 3.107 Gas-filled compartment
    10 - 3.108 Component
    10 - 3.109 Partition
    11 - 3.110 Shutter
    11 - 3.111 Bushing
    11 - 3.112 Removable part
    11 - 3.113 Withdrawable part
    11 - 3.114 Segregation (of conductors)
    11 - 3.115 Service position (connected position)
    11 - 3.116 Earthing position
    11 - 3.117 Test position (of a withdrawable part)
    11 - 3.118 Disconnected position (of a withdrawable part)
    11 - 3.119 Removed position (of a removable part)
    12 - 3.120 Main circuit
    12 - 3.121 Auxiliary circuit
    12 - 3.122 Rated value
    12 - 3.123 Degree of protection
    12 - 3.124 Ambient air temperature (of metal-enclosed switchgear and controlgear)
    12 - 3.125 Disruptive discharge
    12 - 3.126 Minimum functional pressure (of gas-filled compartments)
    12 - 3.127 Design pressure (of gas-filled compartments)
    12 - 3.128 Design temperature (of gas-filled compartments)
    13 - SECTION FOUR - RATED CHARACTERISTICS
    13 - 4. Rating
    13 - 4.1 Rated voltage
    13 - 4.2 Rated insulation level
    13 - 4.3 Rated Frequency
    13 - 4.4 Rated normal current and temperature rise
    13 - 4.4.1 Rated normal current
    14 - 4.4.2 Temperature rise
    14 - 4.5 Rated short-time withstand current
    14 - 4.6 Rated peak withstand current
    14 - 4.7 Rated duration of short circuit
    14 - 4.8 Rated supply voltage of closing and opening devices and auxiliary circuits
    14 - 4.9 Rated supply frequency of operating devices and auxiliary circuits
    14 - 4.10 Rated pressure of compressed gas supply for operation
    14 - 4.101 Rated filling pressure (of gas-filled compartments)
    14 - SECTION FIVE - RULES FOR DESIGN AND CONSTRUCTION
    14 - 5. Design and construction
    15 - 5.1 Requirements for liquids in switchgear and controlgear
    15 - 5.2 Requirements for gases in switchgear and controlgear
    15 - 5.3 Earthing
    15 - 5.3.1 Earthing of the main circuit
    15 - 5.3.2 Earthing of the enclosure
    16 - 5.4 Auxiliary equipment
    16 - 5.5 Dependent power closing
    16 - 5.6 Stored energy closing
    16 - 5.7 Operating of releases
    16 - 5.8 Low and high pressure interlocking devices
    16 - 5.9 Nameplates
    17 - 5.101 Degree of protection and internal fault
    18 - 5.102 Enclosure
    20 - 5.103 Partitions and shutters
    21 - 5.104 Pressure relief of gas-filled compartments
    21 - 5.105 Disconnectors and earthing switches
    22 - 5.106 Interlocks
    23 - 5.107 Provisions for dielectric tests on cables
    23 - SECTION SIX - RULES FOR TYPE TESTS
    23 - 6. Type tests
    24 - 6.1 Dielectric tests
    24 - 6.1.1 Ambient air conditions during tests
    24 - 6.1.2 Wet test procedure
    24 - 6.1.3 Conditions of switchgear and controlgear during dielectric tests
    24 - 6.1.4 Application of test voltages and test conditions
    25 - 6.1.5 Test voltages
    26 - 6.1.6 Lightning and switching impulse voltage tests
    26 - 6.1.7 Power-frequency voltage tests on the main circuit
    26 - 6.1.8 Artificial pollution tests
    26 - 6.1.9 Partial discharge tests
    27 - 6.1.10 Dielectric tests on auxiliary and control circuits
    27 - 6.2 Radio interference voltage (RIV) tests
    27 - 6.3 Temperature-rise tests
    27 - 6.4 Measurement of the resistance of the main circuit
    27 - 6.5 Short-time and peak withstand current tests
    28 - 6.101 Verification of making and breaking capacities
    29 - 6.102 Mechanical operation tests
    29 - 6.103 Verification of the degree of protection
    29 - 6.104 Pressure withstand test for gas-filled compartments
    29 - 6.105 Gas tightness tests of gas-filled compartments
    30 - 6.106 Measurement of leakage currents
    30 - 6.107 Weatherproofing test
    30 - 6.108 Arcing due to internal fault
    31 - SECTION SEVEN - RULES FOR ROUTINE TESTS
    31 - 7. Routine tests
    31 - 7.1 Power-frequency voltage tests on the main circuit
    31 - 7.2 Dielectric tests on auxiliary and control circuits
    31 - 7.3 Measurement of the resistance of the main circuit
    32 - 7.101 Partial discharge measurement
    32 - 7.102 Mechanical operation tests
    32 - 7.103 Pressure tests of gas-filled compartments
    32 - 7.104 Gas tightness tests of gas-filled compartments
    32 - 7.105 Tests of auxiliary electrical, pneumatic and hydraulic devices
    32 - 7.106 Verification of correct wiring
    32 - 7.107 Tests after erection on site
    33 - 7.108 Measurement of gas condition after filling on site
    33 - SECTION EIGHT - GENERAL INFORMATION
    33 - 8. Guide to the selection of switching devices for service
    33 - 9. Information to be given with enquiries, tenders and orders
    33 - 9.101 Information with enquiries and orders
    34 - 9.102 Information with tenders
    35 - 10. Rules for transport, storage, erection and maintenance
    35 - 10.1 Conditions during transport, storage and erection
    35 - 10.2 Erection (mounting)
    35 - 10.3 Maintenance
    37 - Annex AA - Internal fault
    38 - AA.1 Introduction
    38 - AA.2 Types of accessibility
    38 - AA.3 Test arrangements
    39 - AA.4 Current and voltage applied
    40 - AA.5 Test procedure
    41 - AA.6 Assessment of the test
    42 - AA.7 Test report
    45 - Annex BB - Method of calculating the cross sectional area of bare conductors with regard to thermal stresses due to currents
    46 - Annex CC - Recommended method for the weatherproofing test for outdoor metal-enclosed switchgear and controlgear
    49 - Annex DD - Guide for voltage tests after erection on site
    50 - Annex EE - Rated insulation level for Series II
    51 - Annex FF - Partial discharge measurement
    51 - FF.1 General
    51 - FF.2 Application
    52 - FF.3 Test circuits and measuring instruments
    52 - FF.4 Test procedure
    53 - FF.5 Maximum permissible partial discharge quantity
    56 - Annex GG - Gas tightness specifications and tests
    56 - INTRODUCTION
    56 - GG.1 Scope and object
    56 - GG.2 Definitions
    58 - GG.3 Specifications for gas tightness
    58 - GG.4 Tests
    62 - APPENDIX ZZ - LIST OF VARIATIONS BETWEEN THIS STANDARD AND IEC 298
    63 - APPENDIX ZA - ITEMS SUBJECT TO AGREEMENT BETWEEN THE MANUFACTURER AND THE USER

    Abstract - (Show below) - (Hide below)

    Applies to factory-assembled metal-enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 72.5 kV for indoor and outdoor installations and for service frequencies up to and including 60 Hz. This Standard is equivalent in technical content but not corresponding in full presentation to IEC 298:1990 and Amendment 1:1994.

    Scope - (Show below) - (Hide below)

    This standard specifies requirements for factory-assembled metal-enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 52 kV for indoor and outdoor installation, and for service frequencies up to and including 60 Hz.For metal-enclosed switchgear and controlgear containing gas-filled compartments, the design pressure is limited to a maximum of 3 bar (gauge). Gas-filled compartments having a design pressure exceeding 3 bar (gauge) shall be designed and tested in accordance with IEC 517.Metal-enclosed switchgear and controlgear for special use, for example in flammable atmospheres, in mines or on board ships, may be subject to additional requirements.This standard does not deal with components contained in metal-enclosed switchgear and controlgear for which individual specifications exist.NOTES1 Switchgear and controlgear assemblies having an insulation enclosure are covered by IEC 466.2 Metal-enclosed switchgear and controlgear for rated voltages above 52 kV insulated by air at atmospheric pressure may be covered by this standard taking into account the insulation levels of IEC 694.3 Liquid-insulated hermetically sealed compartments are equal to gas-filled compartments with respect to independence from ambient atmosphere.

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

    Committee EL-007
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes
    Under Revision

    History - (Show below) - (Hide below)

    First published as AS 2086-1977.Second edition 1984.Third edition 1995. First published as AS 2086-1977. Second edition 1984. Third edition 1995.

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

    AS 1018-1985 Partial discharge measurements
    AS 2263-1995 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
    AS 2650-1986 High voltage a.c. switchgear and controlgear - Common requirements
    AS 1852.441-1985 International electrotechnical vocabulary - Switchgear, controlgear and fuses
    AS 1852.151-1988 International electrotechnical vocabulary - Electric and magnetic devices
    AS 1306-1985 High voltage a.c. switchgear and controlgear - Disconnectors (isolators) and earthing switches
    AS 1265-1990 Bushings for alternating voltages above 1000 V
    AS 1939-1990 Degrees of protection provided by enclosures for electrical equipment (IP Code)
    AS 2006-1986 High voltage a.c. switchgear and controlgear - Circuit breakers for rated voltages above 1000 V
    AS 2264-1995 A.C. insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 38 kV
    AS 1255.3-1973 Methods of test for electrical characteristics of solid plastics insulating materials - Determination of electric strength at power frequencies

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

    AS 2264-1995 A.C. insulation-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 38 kV
    AS 4243-1994 Additional requirements for enclosed switchgear and controlgear from 1 kV to 72.5 kV to be use in severe climatic conditions
    AS 2067-1984 Switchgear assemblies and ancillary equipment for alternating voltages above 1 kV
    AS 2263-1995 Gas-insulated metal-enclosed switchgear for rated voltages of 72.5 kV and above
    AS 60470-2001 High-voltage alternating current contactors and contactor-based motor starters
    AS 2989-1992 Electrical equipment for coal mines - Specific requirements for high voltage circuit-breakers and disconnectors
    AS 2024-1991 High voltage a.c. switchgear and controlgear - Switch-fuse combinations
    AS 2791-1996 High-voltage switchgear and controlgear - Use and handling of sulphur hexafluoride (SF6) in high-voltage switchgear and controlgear
    • 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