AS 2264-1995

1 - AS 2264-1995 A.C. INSULATION-ENCLOSED SWITCHGEAR AND CONTROLGEAR FOR RATED VOLTAGES ABOVE 1 kV AND UP TO AND INCLUDING 38 kV
4 - PREFACE
6 - CONTENTS
8 - 1. Scope
8 - 2. Normal and special service conditions
8 - 3. Definitions
8 - 3.101 Switchgear and controlgear
9 - 3.102 Insulation-enclosed switchgear and controlgear
9 - 3.103 Transport unit
9 - 3.104 Functional unit
9 - 3.105 Insulation enclosure
9 - 3.106 Insulation-embedded component
9 - 3.107 Component
9 - 3.108 Shutter
9 - 3.109 Removable part
10 - 3.110 Withdrawable part
10 - 3.112 Service position/connected position (of a removable part)
10 - 3.113 Earthing position (of a removable part)
10 - 3.114 Test position (of a withdrawable part)
10 - 3.115 Disconnected position (of a withdrawable part)
10 - 3.116 Removed position (of a removable part)
10 - 3.117 Main circuit
10 - 3.118 Auxiliary circuit
11 - 3.119 Rated value
11 - 3.120 Degree of protection
11 - 3.121 Ambient air temperature (of insulation-enclosed switchgear and controlgear)
11 - 3.122 Disruptive discharge
11 - 4. Rating
13 - 5. Design and construction
20 - 6. Type tests
32 - 7. Routine tests
34 - 8. Guide to the selection of switchgear and controlgear for service
35 - 9. Information to be given with enquiries, tenders and orders
36 - 10. Rules for transport, storage, erection and maintenance
38 - APPENDIX AA - INTERNAL FAULT
39 - AA1. Introduction
39 - AA2. Types of accessibility
39 - AA3. Test arrangement
40 - AA4. Current and voltage applied
41 - AA5. Test procedure
42 - AA6. Assessment of the test
43 - AA7. Test report
45 - APPENDIX BB - HUMIDITY TEST
45 - BB1. General
45 - BB2. Test procedure and test conditions
47 - BB3. Test criteria and evaluation
49 - APPENDIX CC - RATED INSULATION LEVEL FOR SERIES II
49 - APPENDIX DD - GUIDE FOR DIELECTRIC TESTS AFTER ERECTION ON SITE
50 - APPENDIX ZZ - LIST OF VARIATIONS BETWEEN THIS STANDARD AND IEC 466
51 - APPENDIX ZA - ITEMS SUBJECT TO AGREEMENT BETWEEN MANUFACTURER AND USER
52 - Amendment 1

Applies to factory-assembled insulation-enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 38 kV for indoor installation and for service frequencies up to and including 60 Hz. This Standard is equivalent in technical content but does not fully correspond in presentation to IEC 466:1987 and Amendment 1:1994.

This standard specifies requirements for factory-assembled insulation-enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 38 kV for indoor installation, and for service frequencies up to and including 60 Hz.Note. - In some countries the highest voltage for equipment is 40.5 kV.Insulation-enclosed switchgear and controlgear for special use, for example in flammable atmospheres, in mines or in ships, may be subject to additional requirements.This standard does not deal with components contained in insulation-enclosed switchgear and controlgear for which individual specifications exist.Notes 1. - Switchgear and controlgear assemblies having a metal enclosure are covered by IEC Publication 298:A.C.Metal-enclosed Switchgear and Controlgear for Rated Voltages above 1 kV and up to and including 72.5 kV.2. - While this standard also covers insulation-enclosed switchgear and controlgear the insulation of which is an insulating fluid other than air at atmospheric pressure, additional requirements for such equipment may apply depending on its design.For the purpose of this standard, when the term "switchgear" is used alone, it corresponds to "insulation-enclosed switchgear and controlgear".

First published as AS 2264-1979.
Second edition 1985.
Third edition 1995.