AS/NZS 2650:2000

1 - AS/NZS 2650:2000 COMMON SPECIFICATIONS FOR HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR STANDARDS
4 - PREFACE
5 - CONTENTS
8 - 1 General
8 - 1.1 Scope
8 - 1.2 Normative references
11 - 2 Normal and special service conditions
12 - 2.1 Normal service conditions
12 - 2.1.1 Indoor switchgear and controlgear
12 - 2.1.2 Outdoor switchgear and controlgear
13 - 2.2 Special service conditions
13 - 2.2.1 Altitude
13 - 2.2.2 Pollution
13 - 2.2.3 Temperature and humidity
14 - 2.2.4 Vibrations
14 - 2.2.5 Other parameters
14 - 3 Definitions
14 - 3.1 General terms
14 - 3.1.1 switchgear and controlgear
14 - 3.1.2 external insulation:
14 - 3.1.3 IP code:
14 - 3.1.4 protection provided by an enclosure against access to hazardous parts:
14 - 3.1.5 maintenance:
14 - 3.1.6 scheduled maintenance:
14 - 3.1.7 inspection:
15 - 3.1.8 diagnostic tests:
15 - 3.1.9 examination:
15 - 3.1.10 overhaul:
15 - 3.1.11 down time:
15 - 3.1.12 failure:
15 - 3.1.13 major failure (of switchgear and controlgear):
15 - 3.1.14 minor failure (of switchgear and controlgear):
15 - 3.1.15 defect:
15 - 3.1.16 ambient air temperature
15 - 3.2 Assemblies of switchgear and controlgear
15 - 3.2.1 self-protected switchgear:
15 - 3.2.2 test specimen:
15 - 3.3 Parts of assemblies
15 - 3.3.1 transport unit:
16 - 3.4 Switching devices
16 - 3.5 Parts of switchgear and controlgear
16 - 3.5.1 enclosure:
16 - 3.5.2 hazardous part:
16 - 3.5.3 contact
16 - 3.5.4 auxiliary circuit
16 - 3.5.5 control circuit
16 - 3.5.6 auxiliary switch
16 - 3.5.7 control switch
16 - 3.5.8 auxiliary contact
16 - 3.5.9 control contact
16 - 3.5.10 connection (bolted or the equivalent):
16 - 3.5.11 position indicating device
16 - 3.5.12 monitoring device:
16 - 3.5.13 pilot switch
16 - 3.5.14 low energy contact:
16 - 3.6 Operation
16 - 3.6.1 dependent power operation
16 - 3.6.2 stored energy operation
16 - 3.6.3 positively driven operation
17 - 3.6.4 Definitions relative to pressure (or density)
17 - 3.6.4.1 rated filling pressure for insulation (or density ):
17 - 3.6.4.2 rated filling pressure for operation (or density ):
17 - 3.6.4.3 alarm pressure for insulation (or density ):
17 - 3.6.4.4 alarm pressure for operation (or density ):
17 - 3.6.4.5 minimum functional pressure for insulation (or density ):
17 - 3.6.4.6 minimum functional pressure for operation (or density ):
17 - 3.6.5 definitions relating to gas and vacuum tightness:
17 - 3.6.5.1 gas-filled compartment:
17 - 3.6.5.2 controlled pressure system for gas:
18 - 3.6.5.3 closed pressure system for gas:
18 - 3.6.5.4 sealed pressure system:
18 - 3.6.5.5 absolute leakage rate,
18 - 3.6.5.6 permissible leakage rate,
18 - 3.6.5.7 relative leakage rate,
18 - 3.6.5.8 time between replenishments,
18 - 3.6.5.9 number of replenishments per day,
18 - 3.6.5.10 pressure drop,
18 - 3.6.5.11 tightness coordination chart, TC:
18 - 3.6.5.12 cumulative leakage measurement:
18 - 3.6.5.13 sniffing:
18 - 3.6.6 definitions relating to liquid tightness:
18 - 3.6.6.1 controlled pressure system for liquid:
18 - 3.6.6.2 closed pressure system for liquid:
18 - 3.6.6.3 absolute leakage rate, :
19 - 3.6.6.4 permissible leakage rate, :
19 - 3.6.6.5 number of replenishments per day, :
19 - 3.6.6.6 pressure drop, :
19 - 3.7 Characteristic quantities
19 - 3.7.1 isolating distance
19 - 3.7.2 degree of protection:
19 - 3.7.3 rated value:
19 - 3.8 Index of definitions
21 - 4 Ratings
21 - 4.1 Rated voltage (U )
21 - 4.1.1 Range I for rated voltages of 245 kV and below
21 - 4.1.2 Range II for rated voltages above 245 kV
21 - 4.2 Rated insulation level
26 - 4.3 Rated frequency (f )
26 - 4.4 Rated normal current and temperature rise
26 - 4.4.1 Rated normal current (I )
26 - 4.4.2 Temperature rise
28 - 4.4.3 Particular points of table 3
29 - 4.5 Rated short- time withstand current (I )
29 - 4.6 Rated peak withstand current (I )
29 - 4.7 Rated duration of short circuit (t )
29 - 4.8 Rated supply voltage of closing and opening devices
30 - 4.9 Rated supply frequency of closing and opening devices and of auxiliary circuits
30 - 4.10 Rated pressure of compressed gas supply for insulation and/ or operation
31 - 5 Design and construction
31 - 5.1 Requirements for liquids in switchgear and controlgear
31 - 5.1.1 Liquid level
31 - 5.1.2 Liquid quality
31 - 5.2 Requirements for gases in switchgear and controlgear
31 - 5.3 Earthing of switchgear and controlgear
31 - 5.4 Auxiliary and control equipment
32 - 5.5 Dependent power operation
32 - 5.6 Stored energy operation
32 - 5.6.1 Energy storage in gas receivers or hydraulic accumulators
33 - 5.6.2 Energy storage in springs (or weights)
33 - 5.6.3 Manual charging
33 - 5.6.4 Motor charging
33 - 5.7 Independent manual operation
33 - 5.8 Operation of releases
33 - 5.8.1 Shunt closing release
33 - 5.8.2 Shunt opening release
34 - 5.8.3 Capacitor operation of shunt releases
34 - 5.8.4 Under-voltage release
34 - 5.9 Low- and high-pressure interlocking and monitoring devices
34 - 5.10 Nameplates
35 - 5.11 Interlocking devices
35 - 5.12 Position indication
36 - 5.13 Degrees of protection by enclosures
36 - 5.13.1 Protection of persons against access to hazardous parts and protection of the equipment against ingress of solid foreign objects
36 - 5.13.2 Protection against ingress of water
36 - 5.13.3 Protection of equipment against mechanical impact under normal service conditions
37 - 5.14 Creepage distances
38 - 5.15 Gas and vacuum tightness
38 - 5.15.1 Controlled pressure systems for gas
38 - 5.15.2 Closed pressure systems for gas
38 - 5.15.3 Sealed pressure systems
39 - 5.16 Liquid tightness
39 - 5.16.1 Controlled pressure systems for liquid
39 - 5.16.2 Closed pressure systems for liquid
39 - 5.16.3 Tightness levels for liquid
39 - 5.17 Flammability
39 - 5.18 Electromagnetic compatibility (EMC)
40 - 6 Type tests
40 - 6.1 General
40 - 6.1.1 Grouping of tests
41 - 6.1.2 Information for identification of specimens
41 - 6.1.3 Information to be included in type-test reports
42 - 6.2 Dielectric tests
42 - 6.2.1 Ambient air conditions during tests
42 - 6.2.2 Wet test procedure
42 - 6.2.3 Conditions of switchgear and controlgear during dielectric tests
43 - 6.2.4 Criteria to pass the test
44 - 6.2.5 Application of the test voltage and test conditions
44 - 6.2.5.1 General case
44 - 6.2.5.2 Special case
45 - 6.2.6 Tests of switchgear and controlgear of U 245 kV
45 - 6.2.6.1 Power- frequency voltage tests
46 - 6.2.6.2 Lightning impulse voltage tests
46 - 6.2.7 Tests of switchgear and controlgear of rated voltage above 245 kV
46 - 6.2.7.1 Power- frequency voltage tests
46 - 6.2.7.2 Switching impulse voltage tests
47 - 6.2.7.3 Lightning impulse voltage tests
47 - 6.2.8 Artificial pollution tests
47 - 6.2.9 Partial discharge tests
47 - 6.2.10 Test on auxiliary and control circuits
47 - 6.2.11 Voltage test as condition check
48 - 6.3 Radio interference voltage (r. i. v.) test
49 - 6.4 Measurement of the resistance of circuits
49 - 6.4.1 Main circuit
50 - 6.4.2 Low energy circuits
50 - 6.5 Temperature-rise tests
50 - 6.5.1 Conditions of the switchgear and controlgear to be tested
50 - 6.5.2 Arrangement of the equipment
51 - 6.5.3 Measuement of the temperature and the temperature rise
52 - 6.5.4 Ambient air temperature
52 - 6.5.5 Temperature-rise test of the auxiliary and control equipment
52 - 6.5.6 Interpretation of the temperature-rise tests
53 - 6.6 Short-time withstand current and peak withstand current tests
53 - 6.6.1 Arrangement of the switchgear and controlgear and of the test circuit
54 - 6.6.2 Test current and duration
54 - 6.6.3 Behaviour of switchgear and controlgear during test
54 - 6.6.4 Conditions of switchgear and controlgear after test
55 - 6.7 Verification of the protection
55 - 6.7.1 Verification of the IP coding
55 - 6.7.2 Mechanical impact test
55 - 6.8 Tightness tests
56 - 6.8.1 Controlled pressure systems for gas
57 - 6.8.2 Closed pressure systems for gas
57 - 6.8.3 Sealed pressure systems
57 - 6.8.4 Liquid tightness tests
58 - 6.9 Electromagnetic compatibility tests (EMC)
58 - 6.9.1 Emission tests on secondary systems
58 - 6.9.2 Immunity tests on secondary systems
59 - 6.9.3 Guidelines for immunity tests
59 - 6.9.4 Impulse voltage test
59 - 6.9.5 Electrical fast transient/ burst test
59 - 6.9.6 Oscillatory wave immunity test
60 - 6.9.7 Behaviour of the secondary equipment during and after tests
60 - 6.9.8 Electromagnetic compatibility site measurements
61 - 7 Routine tests
61 - 7.1 Dielectric test on the main circuit
62 - 7.2 Dielectric test on auxiliary and control circuits
62 - 7.3 Measurement of the resistance of the main circuit
62 - 7.4 Tightness test
62 - 7.4.1 Controlled pressure systems for gas
62 - 7.4.2 Closed pressure systems for gas
62 - 7.4.3 Sealed pressure systems
63 - 7.4.4 Liquid tightness tests
63 - 7.5 Design and visual checks
63 - 8 Guide to the selection of switchgear and controlgear
63 - 9 Information to be given with enquiries, tenders and orders
63 - 10 Rules for transport, storage, installation, operation and maintenance
63 - 10.1 Conditions during transport, storage and installation
63 - 10.2 Installation
63 - 10.2.1 Unpacking and lifting
64 - 10.2.2 Assembly
64 - 10.2.3 Mounting
64 - 10.2.4 Connections
64 - 10.2.5 Final installation inspection
64 - 10.3 Operation
64 - 10.4 Maintenance
65 - 10.4.1 Recommendations for the manufacturer
66 - 10.4.2 Recommendations for the user
66 - 10.4.3 Failure report
67 - 11 Safety
68 - 11.1 Electrical aspects
68 - 11.2 Mechanical aspects
68 - 11.3 Thermal aspects
68 - 11.4 Operation aspects
72 - Annex A - Identification of test specimens
72 - A. 1 Data
72 - A.2 Drawings
74 - Annex B - Determination of the equivalent r.m.s. value of a short-time current during a short circuit of a given duration
76 - Annex C - Method for the weatherproofing test for outdoor switchgear and controlgear
79 - Annex D - Information about insulation levels and tests
79 - D. 1 Specification
80 - D. 2 Testing
82 - Annex E - Tightness (information, example and guidance)
84 - Annex F -Dielectric testing of self-protected switchgear and controlgear
84 - F.1 General
84 - F.2 Power-frequency tests
85 - F.3 Switching impulse tests
85 - F.4 Lightning impulse tests
86 - F.5 Routine tests
87 - Annex G - Bibliography

Specifies requirements common to most high-voltage a.c. switchgear and controlgear equipment Standards. It is intended to be used as a base document in conjunction with those equipment Standards that make extensive reference to its clauses. Its requirements become effective as specified in or as modified by those Standards.

This International Standard applies to a.c. switchgear and controlgear, designed for indoor and outdoor installation and for operation at service frequencies up to and including 60 Hz on systems having voltages above 1000 V.This standard applies to all high-voltage switchgear and controlgear except as otherwise specified in the relevant IEC standards for the particular type of switchgear and controlgear.

First published as AS 2650-1983.
Second edition 1986.
Jointly revised and designated AS/NZS 2650:2000.