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BS EN 62271-1:2017

BS EN 62271-1:2017

$215.11

High-voltage switchgear and controlgear – Common specifications for alternating current switchgear and controlgear

Published By Publication Date Number of Pages
BSI 2017 134
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This part of IEC 62271 applies to AC switchgear and controlgear designed for indoor and/or outdoor installation and for operation at service frequencies up to and including 60 Hz and having rated voltages above 1 000 V.

This document 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.

NOTE

For the use of this document, high-voltage is defined as the rated voltage above 1 000 V. However, the term medium voltage is commonly used for distribution systems with voltages above 1 kV and generally applied up to and including 52 kV.

PDF Catalog

PDF Pages PDF Title
2 National foreword
11 English
CONTENTS
17 FOREWORD
20 INTRODUCTION
21 1 Scope
2 Normative references
23 3 Terms and definitions
24 3.1 General terms and definitions
27 3.2 Assemblies of switchgear and controlgear
3.3 Parts of assemblies
3.4 Switching devices
3.5 Parts of switchgear and controlgear
31 3.6 Operational characteristics of switchgear and controlgear
32 3.6.5 Terms and definitions relative to pressure (or density)
3.6.6 Terms and definitions relating to gas and vacuum tightness
34 3.6.7 Terms and definitions relating to liquid tightness
3.7 Characteristic quantities
35 3.8 Index of definitions
37 4 Normal and special service conditions
4.1 Normal service conditions
4.1.1 General
4.1.2 Indoor switchgear and controlgear
38 4.1.3 Outdoor switchgear and controlgear
4.2 Special service conditions
4.2.1 General
4.2.2 Altitude
39 4.2.3 Exposure to pollution
4.2.4 Temperature and humidity
4.2.5 Exposure to abnormal vibrations, shock or tilting
40 4.2.6 Wind speed
4.2.7 Other parameters
5 Ratings
5.1 General
5.2 Rated voltage (Ur)
5.2.1 General
5.2.2 Range I for rated voltages of 245Ā kV and below
41 5.2.3 Range II for rated voltages above 245Ā kV
5.3 Rated insulation level (Ud, Up, Us)
42 Tables
TableĀ 1 ā€“ Rated insulation levels for rated voltages of range I, series I
43 Table 2 ā€“ Rated insulation levels for rated voltages of range I, series II (based on current practice in some countries, including US)
44 TableĀ 3 ā€“ Rated insulation levels for rated voltages of range II
45 5.4 Rated frequency (fr)
5.5 Rated continuous current (Ir)
5.6 Rated short-time withstand current (Ik)
TableĀ 4 ā€“ Additional rated insulation levels for range II, basedon current practice in some countries, including US
46 5.7 Rated peak withstand current (Ip)
5.8 Rated duration of short-circuit (tk)
5.9 Rated supply voltage of auxiliary and control circuits (Ua)
5.9.1 General
5.9.2 Rated supply voltage (Ua)
TableĀ 5 ā€“ Peak factors for rated peak withstand current
47 5.10 Rated supply frequency of auxiliary and control circuits
5.11 Rated pressure of compressed gas supply for controlled pressure systems
TableĀ 6 ā€“ Direct current voltage
TableĀ 7 ā€“ Alternating current voltage
48 6 Design and construction
6.1 Requirements for liquids in switchgear and controlgear
6.2 Requirements for gases in switchgear and controlgear
6.3 Earthing of switchgear and controlgear
6.4 Auxiliary and control equipment and circuits
6.4.1 General
49 6.4.2 Protection against electric shock
6.4.3 Components installed in enclosures
51 TableĀ 8 ā€“ Auxiliary contact classes
52 6.5 Dependent power operation
6.6 Stored energy operation
6.6.1 General
Figures
Figure 1 ā€“ Examples of classes of contacts
53 6.6.2 Energy storage in gas receivers or hydraulic accumulators
6.6.3 Energy storage in springs (or weights)
6.6.4 Manual charging
6.6.5 Motor charging
6.6.6 Energy storage in capacitors
6.7 Independent unlatched operation (independent manual or power operation)
54 6.8 Manually operated actuators
6.9 Operation of releases
6.9.1 General
6.9.2 Shunt closing release
6.9.3 Shunt opening release
6.9.4 Capacitor operation of shunt releases
55 6.9.5 Under-voltage release
6.10 Pressure/level indication
6.10.1 Gas pressure
6.10.2 Liquid level
6.11 Nameplates
6.11.1 General
6.11.2 Application
56 TableĀ 9 ā€“ Nameplate information
57 6.12 Locking devices
6.13 Position indication
6.14 Degrees of protection provided by enclosures
6.14.1 General
6.14.2 Protection of persons against access to hazardous parts and protection of the equipment against ingress of solid foreign objects (IP coding)
6.14.3 Protection against ingress of water (IP coding)
6.14.4 Protection against mechanical impact under normal service conditions (IKĀ coding)
58 6.15 Creepage distances for outdoor insulators
6.16 Gas and vacuum tightness
6.16.1 General
6.16.2 Controlled pressure systems for gas
6.16.3 Closed pressure systems for gas
59 6.16.4 Sealed pressure systems
6.17 Tightness for liquid systems
6.17.1 General
6.17.2 Leakage rates
6.18 Fire hazard (flammability)
6.19 Electromagnetic compatibility (EMC)
60 6.20 X-ray emission
6.21 Corrosion
6.22 Filling levels for insulation, switching and/or operation
7 Type tests
7.1 General
7.1.1 Basics
7.1.2 Information for identification of test objects
61 7.1.3 Information to be included in type-test reports
7.2 Dielectric tests
7.2.1 General
7.2.2 Ambient air conditions during tests
62 7.2.3 Wet test procedure
7.2.4 Arrangement of the equipment
63 7.2.5 Criteria to pass the test
7.2.6 Application of the test voltage and test conditions
64 TableĀ 10 ā€“ Test conditions in general case
FigureĀ 2 ā€“ Diagram of connections of a three-pole switching device
65 TableĀ 11 ā€“ Power-frequency test conditions
66 TableĀ 12 ā€“ Impulse test conditions
TableĀ 13 ā€“ Test conditions for the alternative method
67 7.2.7 Tests of switchgear and controlgear of Ur ā‰¤ 245 kV
7.2.8 Tests of switchgear and controlgear of Ur > 245Ā kV
68 7.2.9 Artificial pollution tests for outdoor insulators
7.2.10 Partial discharge tests
7.2.11 Dielectric tests on auxiliary and control circuits
7.2.12 Voltage test as condition check
69 7.3 Radio interference voltage (RIV) test
7.4 Resistance measurement
7.4.1 Measurement of the resistance of auxiliary contacts classĀ 1 and classĀ 2
7.4.2 Measurement of the resistance of auxiliary contacts classĀ 3
7.4.3 Electrical continuity of earthed metallic parts test
7.4.4 Resistance measurement of contacts and connections in the main circuit as a condition check
70 7.5 Continuous current tests
7.5.1 Condition of the test object
7.5.2 Arrangement of the equipment
71 7.5.3 Test current and duration
72 7.5.4 Temperature measurement during test
73 7.5.5 Resistance of the main circuit
7.5.6 Criteria to pass test
74 TableĀ 14 ā€“ Limits of temperature and temperature rise for various parts, materialsand dielectrics of high-voltage switchgear and controlgear
77 7.6 Short-time withstand current and peak withstand current tests
7.6.1 General
7.6.2 Arrangement of the equipment and of the test circuit
78 7.6.3 Test current and duration
79 7.6.4 Conditions of the test object after test
7.7 Verification of the protection
7.7.1 Verification of the IP coding
7.7.2 Verification of the IK coding
80 7.8 Tightness tests
7.8.1 General
81 7.8.2 Controlled pressure systems for gas
7.8.3 Closed pressure systems for gas
TableĀ 15 ā€“ Permissible leakage rates for gas systems
82 7.8.4 Sealed pressure systems
7.8.5 Liquid tightness tests
7.9 Electromagnetic compatibility tests (EMC)
7.9.1 Emission tests
83 FigureĀ 3 ā€“ Diagram of a test circuit for the radio interference voltage test
85 7.9.2 Immunity tests on auxiliary and control circuits
86 TableĀ 16 ā€“ Application of voltages at the fast transient/burst test
TableĀ 17 ā€“ Application of voltage at the damped oscillatory wave test
87 7.9.3 Additional EMC tests on auxiliary and control circuits
TableĀ 18 ā€“ Assessment criteria for transient disturbance immunity
88 7.10 Additional tests on auxiliary and control circuits
7.10.1 General
7.10.2 Functional tests
7.10.3 Verification of the operational characteristics of auxiliary contacts
89 7.10.4 Environmental tests
90 7.10.5 Dielectric test
7.11 X-radiation test for vacuum interrupters
7.11.1 General requirements
92 7.11.2 Test voltage and measurement procedure
7.11.3 Acceptance criteria
FigureĀ 4 ā€“ Test location of radiation survey instrument
93 8 Routine tests
8.1 General
8.2 Dielectric test on the main circuit
94 8.3 Tests on auxiliary and control circuits
8.3.1 Inspection of auxiliary and control circuits, and verification of conformity to the circuit diagrams and wiring diagrams
8.3.2 Functional tests
8.3.3 Verification of protection against electrical shock
8.3.4 Dielectric tests
8.4 Measurement of the resistance of the main circuit
95 8.5 Tightness test
8.5.1 General
8.5.2 Controlled pressure systems for gas
8.5.3 Closed pressure systems for gas
8.5.4 Sealed pressure systems
8.5.5 Liquid tightness tests
8.6 Design and visual checks
96 9 Guide to the selection of switchgear and controlgear (informative)
9.1 General
9.2 Selection of rated values
9.3 Cable-interface considerations
9.4 Continuous or temporary overload due to changed service conditions
9.5 Environmental aspects
9.5.1 Service conditions
9.5.2 Clearances affected by service conditions
9.5.3 High humidity
97 9.5.4 Solar radiation
10 Information to be given with enquiries, tenders and orders (informative)
10.1 General
10.2 Information with enquiries and orders
98 10.3 Information with tenders
99 11 Transport, storage, installation, operating instructions and maintenance
11.1 General
11.2 Conditions during transport, storage and installation
11.3 Installation
11.3.1 General
11.3.2 Unpacking and lifting
100 11.3.3 Assembly
11.3.4 Mounting
11.3.5 Connections
11.3.6 Information about gas and gas mixtures for controlled and closed pressure systems
101 11.3.7 Final installation inspection
11.3.8 Basic input data by the user
11.3.9 Basic input data by the manufacturer
102 11.4 Operating instructions
11.5 Maintenance
11.5.1 General
11.5.2 Information about fluids and gas to be included in maintenance manual
11.5.3 Recommendations for the manufacturer
103 11.5.4 Recommendations for the user
104 11.5.5 Failure report
105 12 Safety
12.1 General
106 12.2 Precautions by manufacturers
12.3 Precautions by users
13 Influence of the product on the environment
108 Annexes
Annex A (normative) Identification of test objects
A.1 General
A.2 Data
A.3 Drawings
110 Annex B (informative) Determination of the equivalent RMS value of a short-time current during a short-circuit of a given duration
FigureĀ B.1 ā€“ Determination of short-time current
111 Annex C (normative) Method for the weatherproofing test for outdoor switchgear and controlgear
112 FigureĀ C.1 ā€“ Arrangement for weatherproofing test
113 FigureĀ C.2 ā€“ Nozzle for weatherproofing test
114 Annex D (informative) References for auxiliary and control circuit components
TableĀ D.1 ā€“ List of reference documents for auxiliary and control circuit components (1 of 2)
116 Annex E (normative) Tolerances on test quantities during tests
117 TableĀ E.1 ā€“ Tolerances on test quantities for type test
119 Annex F (informative) Information and technical requirements to be given with enquiries, tenders and orders
F.1 General
F.2 Normal and special service conditions (refer to ClauseĀ 4)
120 F.3 Ratings (refer to Clause 5)
F.4 Design and construction (refer to Clause 6)
121 F.5 System information
F.6 Documentation for enquiries and tenders
122 Annex G (informative) List of symbols
123 Annex H (informative) Electromagnetic compatibility on site
124 Annex I (informative) List of notes concerning certain countries
125 Annex J (informative) Extension of validity of type tests
J.1 General
J.2 Dielectric tests
J.3 Short-time withstand current tests
J.4 Continuous current test
126 J.5 Electromagnetic immunity test on auxiliary and control circuits
J.6 Environmental tests on auxiliary and control circuits
127 Annex K (informative) Exposure to pollution
K.1 General
K.2 Pollution levels
K.3 Minimum requirements for switchgear
128 TableĀ K.1 ā€“ Environmental examples by site pollution severity (SPS) class
TableĀ K.2 ā€“ Minimum nominal specific creepage distance by pollution level
129 Bibliography

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BS EN 62271-1:2017
$215.11