AS 62271.201-2008

1 - AS 62271.201-2008 High-voltage switchgear and control gear - Part 201: AC insulation-enclosed switchgear and contolgear for rated voltages above 1 kV and up to and including 52 kV
4 - PREFACE
6 - CONTENTS
9 - 1 General
9 - 1.1 Scope
9 - 1.2 Normative references
11 - 2 Normal and special service conditions
11 - 3 Terms and definitions
17 - 4 Ratings
17 - 4.1 Rated voltage (Ur)
18 - 4.2 Rated insulation level
18 - 4.3 Rated frequency (fr)
18 - 4.4 Rated normal current and temperature rise
18 - 4.5 Rated short-time withstand current (Ik)
18 - 4.6 Rated peak withstand current (Ip)
18 - 4.7 Rated duration of short circuit (tk)
19 - 4.8 Rated supply voltage of closing and opening devices and of auxiliary and control circuits (Ua)
19 - 4.9 Rated supply frequency of operating devices and of auxiliary and control circuits
19 - 4.10 Rated pressure of compressed gas supply for insulation and/or operation
19 - 5 Design and construction
19 - 5.1 Requirements for liquids in switchgear and controlgear
19 - 5.2 Requirements for gases in switchgear and controlgear
20 - 5.3 Earthing of switchgear and controlgear
21 - 5.4 Auxiliary and control equipment
21 - 5.5 Dependent power closing
21 - 5.6 Stored energy closing
21 - 5.7 Independent manual operation
21 - 5.8 Operation of releases
21 - 5.9 Low- and high-pressure interlocking and monitoring devices
21 - 5.10 Nameplates
23 - 5.11 Interlocking devices
23 - 5.12 Position indication
23 - 5.13 Degrees of protection by enclosures
24 - 5.14 Creepage distances
24 - 5.15 Gas and vacuum tightness
24 - 5.16 Liquid tightness
24 - 5.17 Flammability
24 - 5.18 Electromagnetic compatibility (EMC)
24 - 5.101 Internal fault
25 - 5.102 Insulation enclosure
28 - 5.103 Compartments
30 - 5.104 Removable parts
30 - 5.105 Provisions for dielectric tests on cables
31 - 6 Type tests
31 - 6.1 General
32 - 6.2 Dielectric tests
36 - 6.3 Radio interference voltage (r.i.v.) test
36 - 6.4 Measurement of the resistance of circuits
37 - 6.5 Temperature-rise tests
38 - 6.6 Short-time withstand current and peak withstand current tests
39 - 6.7 Verification of the protection
40 - 6.8 Tightness tests
40 - 6.9 Electromagnetic compatibility tests (EMC)
40 - 6.10 Additional tests on auxiliary and control circuits
40 - 6.101 Verification of making and breaking capacities
41 - 6.102 Mechanical operation tests
41 - 6.103 Pressure withstand test for gas-filled compartments
42 - 6.104 Tests to prove the protection of persons against electric shock
43 - 6.105 Internal arcing test
44 - 6.106 Thermal stability test
44 - 6.107 Humidity test
45 - 7 Routine tests
45 - 7.1 Dielectric tests on the main circuit
45 - 7.2 Tests on auxiliary and control circuits
46 - 7.3 Measurement of the resistance of the main circuit
46 - 7.4 Tightness test
46 - 7.5 Design and visual checks
46 - 7.101 Partial discharge measurement
46 - 7.102 Mechanical operation tests
46 - 7.103 Pressure tests of gas-filled compartments
46 - 7.104 Tests of auxiliary electrical, pneumatic and hydraulic devices
47 - 7.105 Tests after erection on site
47 - 7.106 Measurement of fluid condition after filling on site
47 - 8 Guide to the selection of insulation-enclosed switchgear and controlgear for service
48 - 8.1 Selection of rated values
48 - 8.2 Selection of design and construction
50 - 8.3 Internal arc classification
55 - 9 Information to be given with enquiries, tenders and orders
55 - 9.101 Information to be given with enquiries and orders
56 - 9.102 Information to be given with tenders
56 - 10 Rules for transport, storage, erection and maintenance
56 - 10.1 Conditions during transport, storage and erection
56 - 10.2 Installation
57 - 10.3 Operation
57 - 10.4 Maintenance
57 - 11 Safety
57 - 11.101 Procedures
57 - 11.102 Internal arc aspects
57 - 12 Influence of the product on the environment
59 - Annex A (normative) Internal fault – Method for testing the insulation-enclosed switchgear and controlgear under conditions of arcing due to an internal fault
73 - Annex B (normative) Partial discharge measurement
78 - Annex C (normative) Humidity test
82 - Annex D (informative) Protection grades
84 - Bibliography

Specifies requirements for factory-assembled insulation-enclosed switchgear and controlgear for alternating current of rated voltages above 1 kV and up to and including 52 kV for indoor installation and for service frequencies up to and including 60 Hz.

Originated as AS 2264-1979.
Previous edition 1995.
Revised and redesignated as AS 62271.201-2008.