Skip to content
Please enter a keyword to search
  • Preview

    AS 2467-1981

    View superseded by
    Superseded A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
    View superseded by

    Maintenance of electrical switchgear

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

    Superseded date:  30-06-2017

    Language(s):  English

    Published date:  01-01-1981

    Publisher:  Standards Australia

    Add To Cart

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

    1 - AS 2467-1981 MAINTENANCE OF ELECTRICAL SWITCHGEAR
    4 - PREFACE
    5 - CONTENTS
    7 - SECTION 1. SCOPE AND GENERAL
    7 - 1.1 SCOPE.
    7 - 1.2 RATIONALE.
    7 - 1.3 OBJECT.
    7 - 1.4 APPLICATION.
    7 - 1.5 STATUTORY AND LEGAL REQUIREMENTS.
    8 - 1.6 DEFINITIONS.
    8 - 1.6.1 Acceptable conditions
    8 - 1.6.2 Electrical station
    8 - 1.6.3 Emergency action
    8 - 1.6.4 Examination
    8 - 1.6.5 Failure (breakdown)
    8 - 1.6.6 Inspection
    8 - 1.6.7 Item
    8 - 1.6.8 Maintenance
    8 - 1.6.9 Operational check
    8 - 1.6.10 Test
    8 - 1.6.11 Overhaul
    9 - SECTION 2. SAFETY OF PERSONNEL
    9 - 2.1 GENERAL.
    9 - 2.2 RESPONSIBILITY.
    9 - 2.2.1 Statutory Requirements.
    9 - 2.2.2 Authorized Person.
    9 - 2.3 FIRST AID.
    9 - 2.4 ACCESS.
    9 - 2.5 SAFETY RULES.
    9 - 2.5.1 General.
    9 - 2.5.2 Anticipating Dangers.
    9 - 2.5.3 Familiarity with Rules.
    9 - 2.5.4 Supply Authority Rules.
    9 - 2.5.5 High Voltage Equipment.
    10 - SECTION 3. SAFETY PROVISIONS FOR MAINTENANCE OPERATIONS
    10 - 3.1 GENERAL.
    10 - 3.2 AVOIDANCE OF MOISTURE AND DUST.
    10 - 3.3 CONTAINMENT OF FAULTS.
    10 - 3.4 FIRE EXTINGUISHING EQUIPMENT.
    10 - 3.4.1 Availability of Equipment and Training of Personnel
    10 - 3.4.2 Suitability for Intended Purpose.
    10 - 3.4.3 Inspection and Labelling.
    10 - 3.4.4 Renewal or Recharge After Use.
    10 - 3.4.5 Automatic Fire Extinguishing Installations.
    10 - 3.5 EMERGENCY EXITS.
    10 - 3.6 LIGHTING.
    10 - 3.7 ACCESS.
    10 - 3.8 EARTHING EQUIPMENT.
    10 - 3.8.1 Availability of Earthing Equipment.
    10 - 3.8.2 Suitability of Earthing Equipment.
    10 - 3.8.3 Inspection.
    11 - 3.8.4 Permanently Stored Earthing Equipment.
    11 - 3.9 EARTH MATS.
    11 - 3.10 INSULATING MATS, STANDS, SCREENS AND OTHER SIMILAR EQUIPMENT
    11 - 3.11 VERIFICATION THAT CONDUCTORS ARE NOT ALIVE
    11 - 3.12 PROTECTION AGAINST INDUCTION.
    11 - 3.13 DETECTION OF HAZARDOUS GASES.
    11 - 3.14 DANGER FROM STORED ENERGY.
    11 - 3.15 PORTABLE ELECTRIC TOOLS.
    11 - 3.16 INSTRUCTIONS, NOTICES AND LABELS.
    11 - 3.16.1 Availability and Display.
    11 - 3.16.2 Removal and Replacement of Identification Labels
    11 - 3.16.3 Caution and Danger Plates.
    11 - 3.16.4 Emergency Exits.
    12 - SECTION 4. FREQUENCY OF MAINTENANCE OPERATIONS
    12 - 4.1 GENERAL.
    12 - 4.2 PLANNING THE FREQUENCY OF MAINTENANCE OPERATIONS.
    12 - 4.2.1 Manufacturer’s Instructions.
    12 - 4.2.2 Newly Commissioned Equipment.
    12 - 4.2.3 Records.
    12 - 4.2.4 Routine Maintenance.
    13 - 4.2.5 Post-fault Maintenance.
    13 - 4.3 INSULATING OIL.
    13 - 4.3.1 General Considerations.
    13 - 4.3.2 Environmental Conditions.
    13 - 4.3.3 Deterioration and Contamination.
    13 - 4.3.4 Normal Maintenance Tests.
    13 - 4.3.5 Auto-reclosing Duty.
    13 - 4.4 RECOMMENDED INTERVALS.
    13 - 4.4.1 General.
    13 - 4.4.2 Operational Check of a Circuit-breaker.
    13 - 4.4.3 Indoor Switchgear.
    13 - 4.4.4 Outdoor Switchgear.
    13 - 4.4.5 Frequent Operation or Adverse Atmospheric Conditions
    14 - SECTION 5. MAINTENANCE OF SWITCHGEAR INTENDED TO OPERATE AT VOLTAGES UP TO 1000 V A. C. AND 1200 V D. C.
    14 - 5.1 PRE-MAINTENANCE REQUIREMENTS AND PRECAUTIONS.
    14 - 5.1.1 Safety of Personnel.
    14 - 5.1.2 Equipment to be Rendered Inoperative.
    14 - 5.1.3 Manufacturer’s Operation and Maintenance Instructions
    14 - 5.1.4 Replacement Parts.
    14 - 5.2 FREQUENCY OF MAINTENANCE.
    14 - 5.3 DIAGNOSTIC TESTING.
    14 - 5.4 ROUTINE MAINTENANCE.
    14 - 5.4.1 Inspection.
    14 - 5.4.2 Examination and Overhaul.
    16 - 5.5 POST-FAULT MAINTENANCE.
    16 - 5.6 MAINTENANCE OF AUXILIARY EQUIPMENT.
    16 - 5.7 SUMMARY OF MAINTENANCE OPERATIONS.
    17 - SECTION 6. MAINTENANCE OF AIR-BREAK SWITCHGEAR INTENDED FOR OPERATION AT VOLTAGES ABOVE 1000 V A. C. AND 1200 V D. C.
    17 - 6.1 PRE-MAINTENANCE REQUIREMENTS AND PRECAUTIONS.
    17 - 6.1.1 Safety of Personnel.
    17 - 6.1.2 Equipment to be Rendered Inoperative.
    17 - 6.1.3 Manufacturer’s Operation and Maintenance instructions
    17 - 6.1.4 Replacement Parts.
    17 - 6.2 FREQUENCY OF MAINTENANCE.
    17 - 6.3 DIAGNOSTIC TESTING.
    17 - 6.4 OPERATIONAL CHECK.
    17 - 6.5 ROUTINE MAINTENANCE.
    17 - 6.5.1 Inspection.
    17 - 6.5.2 Examination and Overhaul.
    20 - 6.6 POST-FAULT MAINTENANCE.
    21 - 6.7 MAINTENANCE OF AUXILIARY EQUIPMENT.
    21 - 6.8 HIGH-VOLTAGE FUSE CONNECTIONS AND ASSOCIATED LINKAGE
    21 - 6.9 SUMMARY OF MAINTENANCE OPERATIONS.
    22 - SECTION 7. MAINTENANCE OF OIL SWITCHGEAR
    22 - 7.1 APPLICATION OF SECTION.
    22 - 7.2 SPECIAL PRECAUTIONS FOR OIL SWITCHGEAR
    22 - 7.3 ROUTINE MAINTENANCE.
    22 - 7.3.1 Examination and Overhaul.
    23 - 7.4 POST-FAULT MAINTENANCE.
    23 - 7.4.1 Isolation of Withdrawable Metal-clad Switchgear.
    23 - 7.4.2 Insulating Oil.
    23 - 7.4.3 Joints and Seals.
    23 - 7.4.4 General Mechanical Inspection.
    23 - 7.5 SUMMARY OF MAINTENANCE OPERATIONS.
    25 - SECTION 8. MAINTENANCE OF AIR-BLAST CIRCUIT-BREAKER SWITCHGEAR
    25 - 8.1 APPLICATION OF SECTION.
    25 - 8.2 PRE-MAINTENANCE REQUIREMENTS AND PRECAUTIONS.
    25 - 8.2.1 Reduction in Air Pressure.
    25 - 8.2.2 Adjacent Unsilenced Circuit-breakers.
    25 - 8.2.3 Avoidance of Hydraulic Tests on Air Receivers.
    25 - 8.3 ROUTINE MAINTENANCE.
    25 - 8.3.1 Examination and Overhaul.
    27 - 8.4 POST-FAULT MAINTENANCE.
    27 - 8.5 SUMMARY OF MAINTENANCE OPERATIONS.
    28 - SECTION 9. MAINTENANCE OF VACUUM CIRCUIT-BREAKER SWITCHGEAR
    28 - 9.1 APPLICATION OF SECTION.
    28 - 9.2 GENERAL.
    28 - 9.3 FREQUENCY OF MAINTENANCE.
    28 - 9.3.1 Determination of Frequency of Maintenance.
    28 - 9.4 ROUTINE MAINTENANCE.
    28 - 9.4.1 Examination and Overhaul.
    28 - 9.5 POST-FAULT MAINTENANCE.
    28 - 9.6 SUMMARY OF MAINTENANCE OPERATIONS.
    30 - SECTION 10. MAINTENANCE OF SULPHUR HEXAFLUORIDE CIRCUIT-BREAKER SWITCHGEAR
    30 - 10.1 APPLICATION OF SECTION.
    30 - 10.2 SPECIAL CONSIDERATIONS ARISING FROM THE USE OF SULPHUR HEXAFLUORIDE.
    30 - 10.2.1 Properties of Sulphur Hexafluoride.
    30 - 10.2.2 SF Circuit-breakers
    30 - 10.2.3 Statutory Regulations.
    30 - 10.2.4 Warnings to Personnel.
    30 - 10.3 PRE-MAINTENANCE REQUIREMENTS AND PRECAUTIONS
    30 - 10.3.1 Access to Equipment in Contact with SF
    30 - 10.3.2 Maintenance Opening or Closing Jacks.
    31 - 10.4 FREQUENCY OF MAINTENANCE.
    31 - 10.4.1 Factors to be Considered for SF Circuit-breakers
    31 - 10.5 ROUTINE MAINTENANCE.
    31 - 10.5.1 Examination and Overhaul.
    33 - 10.6 POST-FAULT MAINTENANCE.
    33 - 10.7 SUMMARY OF MAINTENANCE OPERATIONS.
    35 - SECTION 11. DIAGNOSTIC TESTING
    35 - 11.1 GENERAL.
    35 - 11.2 DIAGNOSTIC TESTS FOR CORRECT OPERATION.
    35 - 11.2.1 Time-travel Test.
    35 - 11.2.2 Timing Test.
    35 - 11.2.3 Operating Voltages.
    35 - 11.2.4 Operation of Pressure Switches.
    35 - 11.2.5 Compressed Air and Gas Systems.
    35 - 11.2.6 Hydraulic Systems.
    35 - 11.3 DIAGNOSTIC TESTS FOR CONTACTS AND CONNECTIONS.
    35 - 11.3.1 Resistance Tests.
    35 - 11.3.2 Infrared Detection.
    35 - 11.4 DIAGNOSTIC TESTS FOR INSULATION.
    35 - 11.4.1 Insulation Tests-General.
    36 - 11.4.2 Insulation Resistance Test.
    36 - 11.4.3 Measurement of Dielectric Dissipation Factor.
    36 - 11.4.4 Gas Leakage Test (SF Circuit-breaker Switchgear
    36 - 11.4.5 Air Quality (Air-blast Circuit-breaker Switchgear)
    37 - SECTION 12. MAINTENANCE OF AUXILIARY ITEMS
    37 - 12.1 EQUIPMENT FOR TRIPPING AND CLOSING CURRENT SUPPLY
    37 - 12.2 GENERAL PRECAUTIONS FOR BATTERY INSTALLATIONS.
    37 - 12.2.1 Precautions to be Taken in Battery Charging Areas
    37 - 12.2.2 Handling Electrolyte.
    37 - 12.2.3 Avoid Mixing or Contamination of Electrolytes.
    37 - 12.3 SECONDARY CELL BATTERIES.
    37 - 12.3.1 General.
    37 - 12.3.2 Routine Maintenance.
    37 - 12.3.3 Electrolyte Condition.
    37 - 12.3.4 Lead-acid Batteries.
    37 - 12.3.5 Alkaline Batteries.
    37 - 12.4 PRIMARY CELL BATTERIES.
    37 - 12.5 COMPRESSED AIR PLANT.
    38 - 12.6 CURRENT TRANSFORMERS.
    38 - 12.6.1 Precautions.
    38 - 12.6.2 Current Transformers which are Accessible.
    38 - 12.6.3 Oil-filled Current Transformers.
    38 - 12.6.4 SF6 Insulated Current Transformers.
    38 - 12.6.5 CurrentTransformers Enclosed in Metal-clad Gear or otherwise Inaccessible
    38 - 12.7 VOLTAGE TRANSFORMERS.
    38 - 12.7.1 Precautions.
    38 - 12.7.2 Maintenance, Inspection and Verification.
    38 - 12.8 EQUIPMENT EARTHING CONNECTIONS.
    38 - 12.9 OTHER AUXILIARY DEVICES.
    38 - 12.9.1 Lifting Devices.
    38 - 12.9.2 Oil Handling Plant.
    38 - 12.10 REPLACEMENT PARTS.
    39 - SECTION 13. MAINTENANCE OF PROTECTIVE APPARATUS
    39 - 13.1 GENERAL.
    39 - 13.2 REMOVAL OF DUST.
    39 - 13.3 CONNECTIONS.
    39 - 13.4 ROUTINE TRIPPING TESTS.
    39 - 13.5 PROTECTIVE APPARATUS INCORPORATING SEMICONDUCTOR
    39 - 13.6 INJECTION TESTS.
    39 - 13.6.1 Primary injection.
    39 - 13.6.2 Secondary Injection.
    39 - 13.7 RELAYS.
    40 - SECTION 14. MAINTENANCE AND TESTING OF INSULATION
    40 - 14.1 GENERAL.
    40 - 14.2 ROUTINE TESTING AND INSPECTION.
    40 - 14.2.1 Materials Susceptible to Deterioration.
    40 - 14.2. 2 Systematic Testing and Recording Methods
    40 - 14.2.3 Measurement of the Dielectric Dissipation Factor Tan
    40 - 14.2.4 Lift Rods.
    40 - 14.2.5 Ambient Temperature.
    40 - 14.3 ELECTROSTATICALLY GRADED (CONDENSER) BUSHINGS.
    40 - 14.3.1 General.
    40 - 14.3.2 Ingress of Moisture.
    40 - 14.3.3 Sampling of Oil.
    40 - 14.3.4 Compound-filled Bushings.
    40 - 14.4 OIL BARRIER BUSHINGS.
    40 - 14.5 LAMINATED INSULATION.
    40 - 14.6 PORCELAIN INSULATION.
    41 - 14.7 APPLIED VOLTAGES FOR INSULATION RESISTANCE TESTS
    41 - 14.8 POWER FREQUENCY WITHSTAND TESTS AFTER MAINTENANCE
    42 - APPENDIX A - EXAMPLE OF ELECTRICAL SAFETY RULES
    42 - A1 GENERAL.
    52 - APPENDIX B - MAINTENANCE RECORD FORMS
    56 - APPENDIX C - FIRE PROTECTION EQUIPMENT
    56 - C1 AUTOMATIC CONTROL.
    56 - C2 PORTABLE EXTINGUISHERS.
    56 - C3 VENTILATION OF ENCLOSED SPACE.
    56 - APPENDIX D - GRAPHICAL ILLUSTRATION OF SOME OF THE TERMS AND DEFINITIONS GIVEN IN CLAUSE 1.4
    57 - APPENDIX E - APPROPRIATE ACTS AND REGULATIONS
    57 - E1 GENERAL.
    57 - E2 LIST OF MATTERS WHICH MAY BE COVERED BY STATE ACTS AND REGULATIONS.
    58 - E3 EXAMPLES OF ACTS AND REGULATIONS IN FORCE IN INDIVIDUAL STATES OF AUSTRALIA.
    58 - E3.1 General.
    58 - E3.2 New South Wales.
    58 - E3.3 Victoria.
    58 - E3.4 Queensland.
    58 - E3.5 South Australia.
    58 - E3.6 Western Australia.
    58 - E3.7 Tasmania.
    59 - APPENDIX F - RELEVANT STANDARDS

    Abstract - (Show below) - (Hide below)

    Describes a recommended practice for the maintenance of electrical switchgear having rated voltages not greater than 145 kV. The principles formulated in the Standard, especially those concerning the safety of personnel, are for the most part also applicable to equipment operated at the higher voltages. Does not apply to the maintenance of electrical switchgear used in explosive atmospheres and in coal mines.

    Scope - (Show below) - (Hide below)

    This standard sets out recommendations and procedures for the maintenance of electrical switchgear. It is applicable to electrical switchgear having rated voltages not greater than 145 kV. At voltages above this level the design of equipment, system operations and consequently maintenance requirements and practices may differ significantly from those at voltages up to this level. However, the principles formulated in this standard as good practice, especially those regarding the safety of personnel, are for the most part applicable at the higher voltages.The standard does not apply to the maintenance of electrical switchgear-(a) of sealed construction intended only to be returned to the manufacturer for adjustment and repair; or(b) used in explosive atmospheres and in coal mines.Reference should be made to AS 1076 and AS 2290, Parts 1 and 2 for the maintenance of electrical equipment used in explosive atmospheres and in coal mines.

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

    Committee EL-006
    Document Type Standard
    Publisher Standards Australia
    Status Superseded
    Superseded By
    Supersedes

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

    AS/NZS 1270:2002 Acoustics - Hearing protectors (Reconfirmed 2014)
    AS/NZS 3118:1993 Approval and test specification - Electric inspection handlamps
    AS 1076.1-1977 Code of practice for the selection, installation and maintenance of electrical apparatus and associated equipment for use in explosive atmospheres (other than mining applications) Basic requirements
    AS 1319-1994 Safety signs for the occupational environment (Reconfirmed 2018)
    AS/NZS 3160:2001 Approval and test specification - Hand-held portable electric tools
    AS 2067-1984 Switchgear assemblies and ancillary equipment for alternating voltages above 1 kV
    AS 2006-1986 High voltage a.c. switchgear and controlgear - Circuit breakers for rated voltages above 1000 V
    AS 1883-1992 Guide to maintenance and supervision of insulating oils in service
    AS 2290.2-1993 Electrical equipment for coal mines - Maintenance and overhaul - Overhaul and repair of electrical equipment for hazardous areas
    AS 1265-1990 Bushings for alternating voltages above 1000 V
    AS 2225-1994 Insulating gloves for electrical purposes
    AS 1930-1976 Circuit-breakers for distribution circuits (up to and including 1000 V a.c. and 1200 V d.c.)
    AS 1255.4-1974 Methods of test for electrical characteristics of solid plastics insulating materials - Determination of the permittivity and dielectric dissipation factor at power, audio and radio frequencies up to 300 MHz
    AS/NZS 2290.1:2005 Electrical equipment for coal mines - Introduction and maintenance - For hazardous areas
    AS 2184-1985 Low voltage switchgear and controlgear - Moulded-case circuit-breakers for rated voltages up to and including 600 V a.c. and 250 V d.c.
    AS 2395-1980 Terminals for switchgear assemblies for alternating voltages above 1 kV

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

    AS/NZS 3947.3:2001 Low-voltage switchgear and controlgear Switches, disconnectors, switch-disconnectors and fuse-combination units
    AS 2067-1984 Switchgear assemblies and ancillary equipment for alternating voltages above 1 kV
    AS 3947.3 SUPP 1-1995 Low-voltage switchgear and controlgear Switches, disconnectors, switch-disconnectors and fuse-combination units - Fuse-switch-disconnectors and switch-disconnectors for use with low-voltage aerial bundled cables (Supplement to AS 3947.3-1994)
    AS 3439.1-1993 Low-voltage switchgear and controlgear assemblies - Type-tested and partially type-tested assemblies
    AS 2989-1992 Electrical equipment for coal mines - Specific requirements for high voltage circuit-breakers and disconnectors
    AS/NZS 3947.3 SUPP 1:2001 Low-voltage switchgear and controlgear Switches, disconnectors, switch-disconnectors and fuse-combination units - Fuse-switch-disconnectors and switch-disconnectors for use with low-voltage aerial bundled cables (Supplement to AS/NZS 3947.3:2001)
    AS/NZS 3439.1:2002 Low-voltage switchgear and controlgear assemblies Type-tested and partially type tested assemblies (IEC 60439-1:1999 MOD)
    View more information

    • 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