IEC 62271-102:2018
(Main)High-voltage switchgear and controlgear - Part 102: Alternating current disconnectors and earthing switches
High-voltage switchgear and controlgear - Part 102: Alternating current disconnectors and earthing switches
IEC 62271-102:2018 applies to alternating current disconnectors and earthing switches, designed for indoor and outdoor installations for nominal voltages above 1 000 V and for service frequencies up to and including 60 Hz.
This second edition cancels and replaces the first edition published in 2001, Amendment 1:2011 and Amendment 2:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
new numbering according to IEC 17/1025/RQ to harmonize with ISO/IEC Directives, Part 2, and IEEE Std. C37.100.1;
clause numbering has been aligned with IEC 62271-1:2017;
the Scope has been extended to cover all indoor and outdoor installations. Consideration of switching devices having disconnecting and/or earthing switch functionalities, apart from other functions, are also covered by this document;
ratings have been moved from Annexes B, C and E to Clause 5; the order of the subclauses now corresponds to the order of subclauses in Clause 7;
new rating values for bus-transfer current and bus-transfer voltage have been assigned;
new class of mechanical endurance for earthing switches has been added (M1);
subclause "Rated values of electrical endurance for earthing switches" is now called "Classification of earthing switches for short-circuit making capability";
new subclause with ratings for ice-coating has been added;
new subclause with classification of bus-charging switching capability has been added;
new withstand requirements for interlocking devices have been added;
the way to comply with the requirements of the isolating distance of disconnectors has been modified;
design and construction requirements for position-indicating devices have been modified, aligning the requirements for position indication and signalling;
the value of the operating force has been changed;
the test procedures and validation criteria have been revised and modified where necessary;
requirements for applied voltage during single-phase test on non-simultaneous closing earthing switches have been changed;
non-verifiable requirements have been deleted;
a new subclause has been added for testing mechanical interlocking devices;
the high- and low-temperature test is mandatory if the temperature limits for the service conditions of the apparatus (defined by the manufacturer) are above +40 °C or below −5 °C, and a more detailed testing procedure is given;
the testing procedure to verify the proper functioning of the position-indicating device allows a more practicable testing for every technology used;
a new Annex B has been added with title: "Current-switching capability required of disconnectors and earthing switches";
a new Annex C has been added with title: "Tolerances on test quantities for type tests";
a new Annex E has been added with title: "Extension of validity of type tests".
Appareillage à haute tension - Partie 102: Sectionneurs et sectionneurs de terre à courant alternatif
L’IEC 62271-102:2018 s’applique aux sectionneurs et aux sectionneurs de terre à courant alternatif, conçus pour être installés à l’intérieur et à l’extérieur, pour des tensions nominales supérieures à 1 000 V et des fréquences de service inférieures ou égales à 60 Hz.
Cette deuxième édition annule et remplace la première édition parue en 2001, l’Amendement 1:2011 et l’Amendement 2:2013. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
adoption d’une nouvelle numérotation conformément à l’IEC 17/1025/RQ pour se conformer aux Directives ISO/IEC, Partie 2, et à l’IEEE C37.100.1;
alignement de la numérotation des articles avec l’IEC 62271-1:2017:
extension du Domaine d’application pour couvrir toutes les installations pour l’intérieur et pour l’extérieur. Prise en compte des appareils de connexion comportant, en plus d’autres fonctions, des fonctionnalités de déconnexion et/ou de mise à la terre couvertes par le présent document;
transfert des caractéristiques assignées des Annexes B, C et E à l’Article 5; l’ordre des paragraphes correspond désormais à l’ordre des paragraphes de l’Article 7:
affectation de nouvelles valeurs assignées au courant de transfert de barres et à la tension de transfert de barres;
ajout d’une nouvelle classe d’endurance mécanique pour les sectionneurs de terre (M1);
le paragraphe "Valeurs assignées d’endurance électrique pour les sectionneurs de terre" s’intitule désormais "Classification des sectionneurs de terre pour le pouvoir de fermeture en court-circuit;
ajout d’un nouveau paragraphe avec des caractéristiques assignées pour la couche de glace;
ajout d’un nouveau paragraphe avec classification du pouvoir d’établissement et de coupure de jeux de barres à vide;
ajout de nouvelles exigences en matière de tenue pour les dispositifs de verrouillage;
modification de la manière de se conformer aux exigences de la distance de sectionnement des sectionneurs;
modification des exigences de conception et de construction des indicateurs de position, en alignant les exigences pour l’indication et la signalisation de position;
modification de la valeur de l’effort de manœuvre;
révision et modification si nécessaire des procédures d’essai et des critères de validation;
modification des exigences relatives à la tension appliquée lors des essais monophasés sur les sectionneurs de terre à fermeture non simultanée;
suppression des exigences non vérifiables;
ajout d’un nouveau paragraphe pour soumettre à l’essai les dispositifs de verrouillage mécanique;
réalisation obligatoire de l’essai aux températures haute et basse si les limites de température pour les conditions de service de l’appareil (définies par le constructeur) sont supérieures à 40 °C ou inférieures à -5 °C, et fourniture d’une procédure d’essai plus détaillée;
réalisation d’essai matériellement possible sur chacune des technologies utilisées, favorisée par la procédure d’essai de vérification du bon fonctionnement de l’indicateur de position;
ajout d’une nouvelle Annexe B intitulée: "Pouvoir d’établissement et de coupure de courant exigé des sectionneurs et des sectionneurs de terre";
ajout d’une nouvelle Annexe C intitulée: "Tolérances sur les grandeurs d’essai pour les essais de type"
ajout d’une nouvelle Annexe E intitulée: "Extension de la validité des essais de type".
General Information
Relations
Standards Content (Sample)
IEC 62271-102 EXV ®
Edition 2.1 2022-09
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 62271-102:2018+AMD1:2022 includes the content of
the references made to IEC 62271-1:2017+AMD1:2021 CSV
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
IEC 62271-102:2022-09 EXV(en)
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a
Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always have
committee, …). It also gives information on projects, replaced access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and once
and French, with equivalent terms in 19 additional languages.
a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or need
further assistance, please contact the Customer Service
Centre: sales@iec.ch.
IEC 62271-102 EXV ®
Edition 2.1 2022-09
EXTENDED VERSION
INTERNATIONAL
STANDARD
colour
inside
This extended version of IEC 62271-102:2018+AMD1:2022 includes the content of
the references made to IEC 62271-1:2017+AMD1:2021 CSV
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-5676-3
IEC 62271-1:2017/ISH1:2021 – 1 –
© IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
IEC 62271-1
Edition 2.0 2017-07
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 1: Common specifications for alternating
current switchgear and controlgear
INT ERPRET AT ION SHEET 1
This interpretation sheet has been prepared by IEC technical committee 17: High-voltage
switchgear and controlgear.
The text of this interpretation sheet is based on the following documents:
DISH Report on voting
17/1090/DISH 17/1095/RVDISH
Full information on the voting for the approval of this interpretation sheet can be found in the
report on voting indicated in the above table.
___________
Interpretation of 4.2.2 of IEC 62271-1:2017 regarding the altitude correction factor
Subclause 4.2.2 of IEC 62271-1:2017 contains two references for calculation of the required
insulation withstand level at altitudes higher than 1 000 m, IEC 60071-2:1996 and
IEC TR 62271-306. The two references are in conflict, as the altitude correction factor
according to IEC 60071-2:1996 starts at sea level and that of IEC TR 62271-306 starts at an
altitude of 1 000 m. This results in different altitude correction factors.
As already stated in 5.3 of IEC 62271-1:2017, the rated insulation levels refer to normal
service conditions. Altitudes up to 1 000 m above sea level are covered and need no altitude
correction.
For altitudes higher than 1 000 m the equation provided in 4.5.1.1 b) of
IEC TR 62271-306:2012 and in H.3.4 of IEC 60071-2:2018 shall be used, i.e.
H−1 000
m( )
8 150
k =e
alt
ICS 29.130.10; 29.130.99
IEC 62271-1:2017-07/ISH1:2021-05(en-fr)
– 2 – IEC 62271-1:2017/ISH1:2021
© IEC 2021
where
k is the altitude correction factor;
alt
H is the altitude in m above sea level;
m is an exponent.
Conservative values for the exponent m are provided in Table 4 of IEC TR 62271-306:2012.
For further details about the exponent m, see H.4 of IEC 60071-2:2018.
– 2 – IEC 62271-102:2018+AMD1:2022 EXV
© IEC 2022
CONTENTS
FOREWORD . 12
1 Scope . 15
2 Normative references . 15
3 Terms and definitions . 18
3.1 General terms and definitions . 18
3.2 Assemblies of switchgear and controlgear . 22
3.3 Parts of assemblies . 22
3.4 Switching devices . 22
3.5 Parts of switching devices . 24
3.6 Operation . 30
3.7 Characteristic quantities . 35
3.8 Index of definitions . 40
4 Normal and special service conditions . 43
4.1 Normal service conditions . 43
4.1.1 General . 43
4.1.2 Indoor switchgear and controlgear . 44
4.1.3 Outdoor switchgear and controlgear . 44
4.2 Special service conditions . 45
4.2.1 General . 45
4.2.2 Altitude . 45
4.2.3 Exposure to pollution . 45
4.2.4 Temperature and humidity . 45
4.2.5 Exposure to abnormal vibrations, shock or tilting . 46
4.2.6 Wind speed . 46
4.2.7 Other parameters . 46
5 Ratings . 46
5.1 General . 46
5.2 Rated voltage (U ) . 47
r
5.2.1 General . 47
5.2.2 Range I for rated voltages of 245 kV and below . 47
5.2.3 Range II for rated voltages above 245 kV . 48
5.3 Rated insulation level (U , U , U ) . 48
d p s
5.4 Rated frequency (f ) . 52
r
5.5 Rated continuous current (I ) . 52
r
5.6 Rated short-time withstand current (I ) . 52
k
5.7 Rated peak withstand current (I ) . 53
p
5.8 Rated duration of short-circuit (t ) . 53
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 54
a
5.9.1 General . 54
5.9.2 Rated supply voltage (U ). 54
a
5.10 Rated supply frequency of auxiliary circuits and control circuits . 55
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 55
5.11.101 Rated pressure of compressed gas supply for insulation and/or
switching . 55
5.11.102 Rated pressure of compressed gas supply for operation . 55
© IEC 2022
5.101 Rated short-circuit making current (I ) . 55
ma
5.102 Classification of earthing switches for short-circuit making . 55
5.103 Rated contact zone . 55
5.104 Rated static mechanical terminal load . 56
5.105 Classification of disconnectors for mechanical endurance . 57
5.106 Classification of earthing switches for mechanical endurance . 58
5.107 Rated ice-coating . 58
5.108 Rated values of disconnectors for bus-transfer current switching . 58
5.108.1 Rated bus-transfer current . 58
5.108.2 Rated bus-transfer voltage . 58
5.109 Classification and rated values of earthing switches for induced current
switching . 59
5.110 Classification and rated values of disconnectors for bus-charging current
switching . 60
6 Design and construction . 61
6.1 Requirements for liquids in disconnectors and earthing switches . 61
6.2 Requirements for gases in disconnectors and earthing switches. 61
6.3 Earthing of disconnectors and earthing switches . 62
6.4 Auxiliary and control equipment and circuits . 62
6.4.1 General . 62
6.4.2 Protection against electric shock . 63
6.4.3 Components installed in enclosures . 63
6.5 Dependent power operation . 66
6.6 Stored energy operation. 67
6.6.1 General . 67
6.6.2 Energy storage in gas receivers or hydraulic accumulators . 67
6.6.3 Energy storage in springs (or weights) . 67
6.6.4 Manual charging . 67
6.6.5 Motor charging . 67
6.6.6 Energy storage in capacitors . 68
6.7 Independent unlatched operation (independent manual or power operation) . 68
6.8 Manually operated actuators . 68
6.9 Operation of releases . 68
6.9.1 General . 68
6.9.2 Shunt closing release . 68
6.9.3 Shunt opening release . 68
6.9.4 Capacitor operation of shunt releases . 69
6.9.5 Under-voltage release . 69
6.10 Pressure/level indication . 69
6.10.1 Gas pressure. 69
6.10.2 Liquid level . 69
6.11 Nameplates . 69
6.11.1 General . 69
6.11.2 Application . 70
6.12 Locking devices . 74
6.13 Position indication . 74
– 4 – IEC 62271-102:2018+AMD1:2022 EXV
© IEC 2022
6.14 Degree of protection provided by enclosures . 74
6.14.1 General . 74
6.14.2 Protection of persons against access to hazardous parts and protection
of the equipment against ingress of solid foreign objects (IP coding) . 74
6.14.3 Protection against ingress of water (IP coding) . 75
6.14.4 Protection against mechanical impact under normal service conditions
(IK coding) . 75
6.15 Creepage distances for outdoor insulators . 75
6.16 Gas and vacuum tightness . 75
6.16.1 General . 75
6.16.2 Controlled pressure systems for gas . 76
6.16.3 Closed pressure systems for gas . 76
6.16.4 Sealed pressure systems . 76
6.17 Tightness for liquid systems . 76
6.17.1 General . 76
6.17.2 Leakage rates . 76
6.18 Fire hazard (flammability) . 77
6.19 Electromagnetic compatibility (EMC) . 77
6.20 X-ray emission . 77
6.21 Corrosion . 77
6.22 Filling levels for insulation, switching and/or operation . 77
6.101 Particular requirements for earthing switches . 78
6.102 Requirements in respect of the isolating distance of disconnectors . 78
6.103 Mechanical strength . 78
6.104 Operation of disconnectors and earthing switches – Position of the movable
contact system and its indicating and signalling devices . 78
6.104.1 Securing of position . 78
6.104.2 Additional requirements for power-operated mechanisms . 79
6.104.3 Indication and signalling of position . 79
6.105 Maximum force required for manual (dependent or independent) operation . 80
6.105.1 General . 80
6.105.2 Operation requiring more than one revolution . 80
6.105.3 Operation requiring up to one revolution . 80
6.106 Dimensional tolerances . 81
6.107 Earthing switches with short-circuit making current capability . 81
7 Type tests . 81
7.1 General . 81
7.1.1 Basics . 81
7.1.2 Information for identification of test objects . 83
7.1.3 Information to be included in type test reports . 83
7.2 Dielectric tests . 84
7.2.1 General . 84
7.2.2 Ambient air conditions during tests . 84
7.2.3 Wet test procedure . 85
7.2.4 Arrangement of the equipment . 85
7.2.5 Criteria to pass the test. 85
7.2.6 Application of the test voltage and test conditions . 86
7.2.7 Tests of disconnectors and earthing switches of U ≤ 245 kV . 90
r
© IEC 2022
7.2.8 Test of disconnectors and earthing switches of U > 245 kV . 91
r
7.2.9 Artificial pollution tests for outdoor insulators. 92
7.2.10 Partial discharge tests . 92
7.2.11 Dielectric tests on auxiliary and control circuits . 92
7.2.12 Voltage test as condition check . 92
7.3 Radio interference voltage (RIV) test . 93
7.4 Resistance measurement . 93
7.4.1 Measurement of the resistance of auxiliary contacts class 1 and class 2 . 93
7.4.2 Measurement of the resistance of auxiliary contacts class 3 . 93
7.4.3 Electrical continuity of earthed metallic parts test . 93
7.4.4 Resistance measurement of contacts and connections in the main
circuit as a condition check . 93
7.5 Continuous current tests . 94
7.5.1 Condition of the test object . 94
7.5.2 Arrangement of the equipment . 94
7.5.3 Test current and duration . 95
7.5.4 Temperature measurement during test . 96
7.5.5 Resistance of the main circuit . 97
7.5.6 Criteria to pass test . 97
7.6 Short-time withstand current and peak withstand current tests . 101
7.6.1 General . 101
7.6.2 Arrangement of the disconnectors and earthing switches and of the test
circuit . 101
7.6.3 Test current and duration . 108
7.6.4 Conditions of disconnectors and earthing switches after test . 109
7.7 Verification of the protection . 110
7.7.1 Verification of the IP coding . 110
7.7.2 Verification of the IK coding . 111
7.8 Tightness tests . 111
7.8.1 General . 111
7.8.2 Controlled pressure systems for gas . 112
7.8.3 Closed pressure systems for gas . 112
7.8.4 Sealed pressure systems . 113
7.8.5 Liquid tightness tests . 113
7.9 Electromagnetic compatibility tests (EMC) . 114
7.9.1 Emission tests . 114
7.9.2 Immunity tests on auxiliary and control circuits . 116
7.9.3 Additional EMC tests on auxiliary and control circuits . 119
7.10 Additional tests on auxiliary and control circuits . 119
7.10.1 General . 119
7.10.2 Functional tests . 119
7.10.3 Verification of the operational characteristics of auxiliary contacts. 119
7.10.4 Environmental tests . 120
7.10.5 Dielectric test . 121
7.11 X-ray radiation test for vacuum interrupters . 122
7.11.1 General requirements . 122
7.11.2 Test voltage and measurement procedure . 123
7.11.3 Acceptance criteria . 123
– 6 – IEC 62271-102:2018+AMD1:2022 EXV
© IEC 2022
7.101 Test to prove the short-circuit making performance of earthing switches . 124
7.101.1 General test conditions . 124
7.101.2 Arrangement of the earthing switch for tests . 124
7.101.3 Test frequency . 124
7.101.4 Test voltage . 125
7.101.5 Test short-circuit making current . 125
7.101.6 Test circuits . 125
7.101.7 Test procedures . 126
7.101.8 Behaviour of earthing switches when making short-circuit currents . 126
7.101.9 Condition of earthing switch after short-circuit making tests . 126
7.101.10 Invalid tests . 127
7.101.11 Type test reports . 128
7.102 Operating and mechanical endurance tests . 128
7.102.1 General test conditions . 128
7.102.2 Contact zone test . 128
7.102.3 Mechanical endurance test . 131
7.102.4 Operation during the application of rated static mechanical terminal
loads . 133
7.102.5 Extended mechanical endurance tests . 134
7.102.6 Testing of mechanical interlocking devices. . 135
7.103 Operation under severe ice conditions . 135
7.103.1 General . 135
7.103.2 Test arrangement . 135
7.103.3 Test procedure . 136
7.104 Low- and high-temperature tests . 137
7.104.1 General . 137
7.104.2 Measurement of ambient air temperature . 138
7.104.3 Low-temperature test . 138
7.104.4 High-temperature test . 140
7.105 Tests to verify the proper functioning of the position-indicating device . 140
7.105.1 General . 140
7.105.2 Tests on the power kinematic chain and the position-indicating
kinematic chain . 141
7.106 Bus-transfer current switching tests on disconnectors . 141
7.106.1 General . 141
7.106.2 Making and breaking tests . 141
7.107 Induced current switching tests on earthing switches . 145
7.107.1 General . 145
7.107.2 Arrangement of the earthing switch for tests . 145
7.107.3 Earthing of test circuit and earthing switch . 146
7.107.4 Test frequency . 146
7.107.5 Test voltage . 146
7.107.6 Test currents . 146
7.107.7 Test circuits . 146
7.108 Bus-charging current switching tests on disconnectors . 151
7.108.1 General . 151
7.108.2 Test duties . 152
7.108.3 Arrangement of the disconnector for tests . 152
7.108.4 Test frequency . 152
© IEC 2022
7.108.5 Test voltages for making and breaking tests . 153
7.108.6 Test circuits for making and breaking tests . 154
7.108.7 Performance of making and breaking tests . 156
7.108.8 Behaviour of the disconnector during making and breaking tests . 156
7.108.9 Condition after test . 157
7.108.10 Type test reports . 157
7.108.11 Requirements for U measurements . 158
TVE
8 Routine tests . 158
8.1 General . 158
8.2 Dielectric test on the main circuit. 159
8.3 Tests on auxiliary and control circuits . 160
8.3.1 Inspection of auxiliary and control circuits, and verification of conformity
to the circuit diagrams and wiring diagrams . 160
8.3.2 Functional tests . 160
8.3.3 Verification of protection against electrical shock . 160
8.3.4 Dielectric tests . 160
8.4 Measurement of the resistance of the main circuit. 160
8.5 Tightness test . 161
8.5.1 General . 161
8.5.2 Controlled pressure systems for gas . 161
8.5.3 Closed pressure systems for gas . 161
8.5.4 Sealed pressure systems . 161
8.5.5 Liquid tightness tests . 161
8.6 Design and visual checks . 162
8.101 Mechanical operating tests . 162
8.102 Verification of earthing function . 162
9 Guide to the selection of disconnectors and earthing switches (informative) . 163
9.1 General . 163
9.2 Selection of rated values. 163
9.2.101 General . 163
9.2.102 Selection of rated voltage and rated insulation level . 164
9.2.103 Selection of rated continuous current . 164
9.2.104 Selection of rated contact zone . 164
9.2.105 Selection of rated static mechanical terminal load . 164
9.2.106 Selection of a bus-transfer current switching capability for
disconnectors of U > 52 kV . 164
r
9.2.107 Selection of an induced-current switching capability for earthing
switches of U > 52 kV . 165
r
9.2.108 Selection of rated short-time withstand current and of rated duration of
short-circuit . 165
9.2.109 Selection of rated peak withstand current and of rated short-circuit
making current for earthing switches . 165
9.2.110 Selection of short-circuit making capability for earthing switches . 165
9.3 Cable-interface considerations . 166
9.4 Continuous or temporary overload due to changed service conditions . 166
9.5 Environmental aspects . 166
9.5.1 Service conditions . 166
9.5.2 Clearances affected by service conditions . 166
– 8 – IEC 62271-102:2018+AMD1:2022 EXV
© IEC 2022
9.5.3 High humidity . 166
9.5.4 Solar radiation . 166
9.5.101 Local environmental conditions . 166
10 Information to be given with enquiries, tenders and orders (informative) . 167
10.1 General . 167
10.2 Information with enquiries and orders . 167
10.3 Information with tenders. 169
11 Transport, storage, installation, operating instructions, and maintenance . 170
11.1 General . 170
11.2 Conditions during transport, storage and installation . 170
11.3 Installation . 170
11.3.1 General . 170
11.3.2 Unpacking and lifting . 170
11.3.3 Assembly . 171
11.3.4 Mounting . 171
11.3.5 Connections . 171
11.3.6 Information about gas and gas mixtures for controlled and closed
pressure systems . 171
11.3.7 Final installation inspection . 172
11.3.8 Basic input data by the user . 172
11.3.9 Basic input data by the manufacturer . 172
11.4 Operation . 173
11.5 Maintenance . 173
11.5.1 General . 173
11.5.2 Information about fluids and gas to be included in maintenance manual . 173
11.5.3 Recommendations for the manufacturer . 173
11.5.4 Recommendations for the user. 175
11.5.5 Failure report . 175
12 Safety . 176
12.1 General . 176
12.2 Precautions by manufacturers . 177
12.3 Precautions by users . 177
13 Influence of the product on the environment . 178
Annex A (normative) Identification of test objects . 179
A.1 General . 179
A.2 Data . 179
A.3 Drawings . 179
Annex B (informative) Determination of the equivalent RMS value of a short-time
current during a short-circuit of a given duration . 181
Annex C (normative) Method for the weatherproofing test for outdoor switchgear and
controlgear . 182
Annex D (informative) References for auxiliary and control circuit components . 185
Annex E (normative) Tolerances on test quantities during tests . 187
Annex F (informative) Information and technical requirements to be given with
enquiries, tenders and orders . 190
F.1 General . 190
© IEC 2022
F.2 Normal and special service conditions (refer to Clause 4) . 190
F.3 Ratings (refer to Clause 5) . 191
F.4 Design and construction (refer to Clause 6) . 191
F.5 System information . 192
F.6 Documentation for enquiries and tenders . 192
Annex G (informative) List of symbols . 193
Annex H (informative) Electromagnetic compatibility on site . 194
Annex I (informative) List of notes concerning certain countries . 195
Annex J (informative) Extension of validity of type tests . 196
J.1 General . 196
J.2 Dielectric tests . 196
J.3 Short-time withstand current tests . 196
J.4 Continuous current test . 196
J.5 Electromagnetic immunity test on auxiliar
...
IEC 62271-102 ®
Edition 2.1 2022-04
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
Appareillage à haute tension –
Partie 102: Sectionneurs et sectionneurs de terre à courant alternatif
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Secretariat Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigendum or an amendment might have been published.
IEC publications search - webstore.iec.ch/advsearchform IEC Products & Services Portal - products.iec.ch
The advanced search enables to find IEC publications by a Discover our powerful search engine and read freely all the
variety of criteria (reference number, text, technical publications previews. With a subscription you will always
committee, …). It also gives information on projects, replaced have access to up to date content tailored to your needs.
and withdrawn publications.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
The world's leading online dictionary on electrotechnology,
Stay up to date on all new IEC publications. Just Published
containing more than 22 300 terminological entries in English
details all new publications released. Available online and
and French, with equivalent terms in 19 additional languages.
once a month by email.
Also known as the International Electrotechnical Vocabulary
(IEV) online.
IEC Customer Service Centre - webstore.iec.ch/csc
If you wish to give us your feedback on this publication or
need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Recherche de publications IEC - IEC Products & Services Portal - products.iec.ch
webstore.iec.ch/advsearchform Découvrez notre puissant moteur de recherche et consultez
La recherche avancée permet de trouver des publications IEC gratuitement tous les aperçus des publications. Avec un
en utilisant différents critères (numéro de référence, texte, abonnement, vous aurez toujours accès à un contenu à jour
comité d’études, …). Elle donne aussi des informations sur adapté à vos besoins.
les projets et les publications remplacées ou retirées.
Electropedia - www.electropedia.org
IEC Just Published - webstore.iec.ch/justpublished
Le premier dictionnaire d'électrotechnologie en ligne au
Restez informé sur les nouvelles publications IEC. Just
monde, avec plus de 22 300 articles terminologiques en
Published détaille les nouvelles publications parues.
anglais et en français, ainsi que les termes équivalents dans
Disponible en ligne et une fois par mois par email.
19 langues additionnelles. Egalement appelé Vocabulaire
Electrotechnique International (IEV) en ligne.
Service Clients - webstore.iec.ch/csc
Si vous désirez nous donner des commentaires sur cette
publication ou si vous avez des questions contactez-nous:
sales@iec.ch.
IEC 62271-102 ®
Edition 2.1 2022-04
CONSOLIDATED VERSION
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
Appareillage à haute tension –
Partie 102: Sectionneurs et sectionneurs de terre à courant alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-5247-5
IEC 62271-102 ®
Edition 2.1 2022-04
CONSOLIDATED VERSION
REDLINE VERSION
VERSION REDLINE
colour
inside
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
Appareillage à haute tension –
Partie 102: Sectionneurs et sectionneurs de terre à courant alternatif
– 2 – IEC 62271-102:2018+AMD1:2022 CSV
© IEC 2022
CONTENTS
FOREWORD . 9
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
3.1 General terms and definitions . 13
3.2 Assemblies of switchgear and controlgear . 14
3.3 Parts of assemblies . 14
3.4 Switching devices . 14
3.5 Parts of switching devices . 16
3.6 Operation . 18
3.7 Characteristic quantities . 20
3.8 Index of definitions . 24
4 Normal and special service conditions . 26
5 Ratings . 26
5.1 General . 26
5.2 Rated voltage (U ) . 27
r
5.3 Rated insulation level (U , U , U ) . 27
d p s
5.4 Rated frequency (f ) . 27
r
5.5 Rated continuous current (I ) . 27
r
5.6 Rated short-time withstand current (I ) . 27
k
5.7 Rated peak withstand current (I ) . 27
p
5.8 Rated duration of short-circuit (t ) . 28
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 28
a
5.10 Rated supply frequency of auxiliary circuits and control circuits . 28
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 28
5.11.101 Rated pressure of compressed gas supply for insulation and/or
switching . 28
5.11.102 Rated pressure of compressed gas supply for operation . 28
5.101 Rated short-circuit making current (I ) . 28
ma
5.102 Classification of earthing switches for short-circuit making . 28
5.103 Rated contact zone . 29
5.104 Rated static mechanical terminal load . 30
5.105 Classification of disconnectors for mechanical endurance . 30
5.106 Classification of earthing switches for mechanical endurance . 31
5.107 Rated ice-coating . 31
5.108 Rated values of disconnectors for bus-transfer current switching . 31
5.108.1 Rated bus-transfer current . 31
5.108.2 Rated bus-transfer voltage. 32
5.109 Classification and rated values of earthing switches for induced current
switching . 32
5.110 Classification and rated values of disconnectors for bus-charging current
switching . 33
6 Design and construction . 34
6.1 Requirements for liquids in disconnectors and earthing switches . 34
6.2 Requirements for gases in disconnectors and earthing switches . 34
6.3 Earthing of disconnectors and earthing switches . 34
© IEC 2022
6.4 Auxiliary and control equipment and circuits . 35
6.5 Dependent power operation . 35
6.6 Stored energy operation . 35
6.7 Independent unlatched operation (independent manual or power operation) . 35
6.8 Manually operated actuators . 35
6.9 Operation of releases . 35
6.10 Pressure/level indication . 35
6.11 Nameplates. 35
6.12 Locking devices . 38
6.13 Position indication . 38
6.14 Degree of protection provided by enclosures . 38
6.15 Creepage distances for outdoor insulators . 38
6.16 Gas and vacuum tightness . 38
6.17 Tightness for liquid systems . 38
6.18 Fire hazard (flammability) . 38
6.19 Electromagnetic compatibility (EMC) . 38
6.20 X-ray emission . 38
6.21 Corrosion . 38
6.22 Filling levels for insulation, switching and/or operation . 39
6.101 Particular requirements for earthing switches . 39
6.102 Requirements in respect of the isolating distance of disconnectors . 39
6.103 Mechanical strength . 39
6.104 Operation of disconnectors and earthing switches – Position of the movable
contact system and its indicating and signalling devices . 40
6.104.1 Securing of position . 40
6.104.2 Additional requirements for power-operated mechanisms . 40
6.104.3 Indication and signalling of position . 40
6.105 Maximum force required for manual (dependent or independent) operation . 41
6.105.1 General . 41
6.105.2 Operation requiring more than one revolution . 42
6.105.3 Operation requiring up to one revolution . 42
6.106 Dimensional tolerances . 42
6.107 Earthing switches with short-circuit making current capability . 42
7 Type tests . 42
7.1 General . 42
7.1.1 Basics . 42
7.1.2 Information for identification of test objects . 44
7.1.3 Information to be included in type test reports . 44
7.2 Dielectric tests . 44
7.2.1 General . 44
7.2.2 Ambient air conditions during tests . 44
7.2.3 Wet test procedure . 44
7.2.4 Arrangement of the equipment . 44
7.2.5 Criteria to pass the test . 45
7.2.6 Application of the test voltage and test conditions . 45
7.2.7 Tests of disconnectors and earthing switches of U ≤ 245 kV . 45
r
7.2.8 Test of disconnectors and earthing switches of U > 245 kV . 45
r
7.2.9 Artificial pollution tests for outdoor insulators . 45
7.2.10 Partial discharge tests . 46
– 4 – IEC 62271-102:2018+AMD1:2022 CSV
© IEC 2022
7.2.11 Dielectric tests on auxiliary and control circuits . 46
7.2.12 Voltage test as condition check . 46
7.3 Radio interference voltage (RIV) test . 46
7.4 Resistance measurement . 46
7.5 Continuous current tests . 46
7.6 Short-time withstand current and peak withstand current tests . 46
7.6.1 General . 46
7.6.2 Arrangement of the disconnectors and earthing switches and of the test
circuit . 46
7.6.3 Test current and duration . 52
7.6.4 Conditions of disconnectors and earthing switches after test . 52
7.7 Verification of the protection . 53
7.8 Tightness tests . 53
7.9 Electromagnetic compatibility tests (EMC) . 53
7.10 Additional tests on auxiliary and control circuits . 53
7.11 X-ray radiation test for vacuum interrupters. 53
7.101 Test to prove the short-circuit making performance of earthing switches . 54
7.101.1 General test conditions . 54
7.101.2 Arrangement of the earthing switch for tests . 54
7.101.3 Test frequency . 54
7.101.4 Test voltage . 54
7.101.5 Test short-circuit making current . 55
7.101.6 Test circuits . 55
7.101.7 Test procedures . 55
7.101.8 Behaviour of earthing switches when making short-circuit currents . 56
7.101.9 Condition of earthing switch after short-circuit making tests . 56
7.101.10 Invalid tests . 57
7.101.11 Type test reports . 57
7.102 Operating and mechanical endurance tests . 58
7.102.1 General test conditions . 58
7.102.2 Contact zone test. 58
7.102.3 Mechanical endurance test . 61
7.102.4 Operation during the application of rated static mechanical terminal
loads . 63
7.102.5 Extended mechanical endurance tests . 64
7.102.6 Testing of mechanical interlocking devices. . 65
7.103 Operation under severe ice conditions . 65
7.103.1 General . 65
7.103.2 Test arrangement . 65
7.103.3 Test procedure . 66
7.104 Low- and high-temperature tests . 67
7.104.1 General . 67
7.104.2 Measurement of ambient air temperature . 68
7.104.3 Low-temperature test . 68
7.104.4 High-temperature test . 70
7.105 Tests to verify the proper functioning of the position-indicating device . 70
7.105.1 General . 70
7.105.2 Tests on the power kinematic chain and the position-indicating
kinematic chain . 71
7.106 Bus-transfer current switching tests on disconnectors . 71
© IEC 2022
7.106.1 General . 71
7.106.2 Making and breaking tests . 71
7.107 Induced current switching tests on earthing switches . 75
7.107.1 General . 75
7.107.2 Arrangement of the earthing switch for tests . 75
7.107.3 Earthing of test circuit and earthing switch . 76
7.107.4 Test frequency . 76
7.107.5 Test voltage . 76
7.107.6 Test currents . 76
7.107.7 Test circuits . 76
7.108 Bus-charging current switching tests on disconnectors. 81
7.108.1 General . 81
7.108.2 Test duties . 82
7.108.3 Arrangement of the disconnector for tests . 82
7.108.4 Test frequency . 82
7.108.5 Test voltages for making and breaking tests . 83
7.108.6 Test circuits for making and breaking tests . 84
7.108.7 Performance of making and breaking tests . 86
7.108.8 Behaviour of the disconnector during making and breaking tests . 86
7.108.9 Condition after test . 87
7.108.10 Type test reports . 87
7.108.11 Requirements for U measurements . 88
TVE
8 Routine tests . 88
8.1 General . 88
8.2 Dielectric test on the main circuit . 88
8.3 Tests on auxiliary and control circuits . 89
8.4 Measurement of the resistance of the main circuit . 89
8.5 Tightness test . 89
8.6 Design and visual checks . 89
8.101 Mechanical operating tests . 89
8.102 Verification of earthing function . 90
9 Guide to the selection of disconnectors and earthing switches (informative) . 90
9.1 General . 90
9.2 Selection of rated values . 91
9.2.101 General . 91
9.2.102 Selection of rated voltage and rated insulation level . 91
9.2.103 Selection of rated continuous current . 91
9.2.104 Selection of rated contact zone . 91
9.2.105 Selection of rated static mechanical terminal load . 92
9.2.106 Selection of a bus-transfer current switching capability for
disconnectors of U > 52 kV . 92
r
9.2.107 Selection of an induced-current switching capability for earthing
switches of U > 52 kV . 92
r
9.2.108 Selection of rated short-time withstand current and of rated duration of
short-circuit . 92
9.2.109 Selection of rated peak withstand current and of rated short-circuit
making current for earthing switches. 93
9.2.110 Selection of short-circuit making capability for earthing switches . 93
9.3 Cable-interface considerations . 93
– 6 – IEC 62271-102:2018+AMD1:2022 CSV
© IEC 2022
9.4 Continuous or temporary overload due to changed service conditions . 93
9.5 Environmental aspects . 93
9.5.101 Local environmental conditions . 93
10 Information to be given with enquiries, tenders and orders (informative) . 94
10.1 General . 94
10.2 Information with enquiries and orders . 94
10.3 Information with tenders . 95
11 Transport, storage, installation, operating instructions, and maintenance . 96
11.1 General . 96
11.2 Conditions during transport, storage and installation . 96
11.3 Installation . 96
11.4 Operation . 97
11.5 Maintenance . 97
12 Safety . 97
12.1 General . 97
12.2 Precautions by manufacturers . 97
12.3 Precautions by users . 97
13 Influence of the product on the environment . 97
Annex A (informative) Test voltage for the most disadvantageous dielectric position of
an earthing switch during operation (minimum temporary clearance) . 98
Annex B (informative) Current-switching capability required of disconnectors and
earthing switches . 99
B.1 Bus-transfer current switching capability of disconnectors . 99
B.2 Bus-charging current switching capability of disconnectors . 99
B.3 Induced current-switching capability of earthing switches . 100
Annex C (normative) Tolerances on test quantities for type tests . 101
Annex D (normative) Alternative test methods for short-circuit current making tests . 103
D.1 General . 103
D.2 Alternative methods . 103
D.2.1 Synthetic test method with both rated voltage and rated short-circuit
current . 103
D.2.2 Test methods with reduced voltage . 103
Annex E (informative) Extension of validity of type tests . 105
E.1 General . 105
E.2 Dielectric tests . 105
E.3 Short-time withstand current tests . 105
E.4 Short-circuit making performance of earthing switches . 105
E.5 Operating and mechanical endurance tests . 105
E.6 Bus-transfer current switching tests on disconnectors . 105
E.7 Induced current switching tests on earthing switches . 106
Bibliography . 107
Figure 1 – Position indicating/signalling device(s) . 40
Figure 2 – Three-phase test arrangement for disconnectors and earthing switches . 48
Figure 3 – Single-phase test arrangement for disconnectors with a horizontal isolating
distance and for earthing switches of U > 52 kV, to be used with flexible or with rigid
r
conductors . 49
© IEC 2022
Figure 4 – Single-phase test arrangement for divided support disconnectors (earthing
switches) of U > 52 kV with a vertical isolating distance, to be used with flexible
r
conductors . 50
Figure 5 – Single-phase test arrangement for divided support disconnectors (earthing
switches) of U > 52 kV with a vertical isolating distance, to be used with rigid
r
conductors . 51
Figure 6 – Fixed contact parallel to support . 59
Figure 7 – Fixed contact perpendicular to support . 60
Figure 8 – Example of the application of rated static mechanical terminal loads to a
(divided support) pantograph disconnector (or earthing switch) . 61
Figure 9 – Example of the application of rated static mechanical terminal loads to a
two-column disconnector . 62
Figure 10 – Test sequences for low and high temperature tests . 68
Figure 11 – Example of test circuit for bus-transfer current switching tests . 73
Figure 12 – Test circuit for electromagnetically induced current switching tests . 77
Figure 13 – Test circuits for electrostatically induced current-switching tests . 79
Figure 14 – Test circuit for test duty 1 . 83
Figure 15 – Typical voltage waveform (Including VFT and FT components) . 85
Figure 16 – Test circuit for test duty 2 . 85
Figure 17 – Test circuit for test duty 3 . 86
Figure B.1 – Examples of resistor-fitted disconnectors . 100
Table 1 – Classification of earthing switches for short-circuit making . 28
Table 2 – Preferred contact zones for "fixed" contacts supported by flexible
conductors . 29
Table 3 – Preferred contact zones for "fixed" contacts supported by rigid conductors . 29
Table 4 – Preferred static mechanical terminal loads . 30
Table 5 – Classification of disconnectors for mechanical endurance . 31
Table 6 – Classification of earthing switches for mechanical endurance . 31
Table 7 – Rated bus-transfer voltages of disconnectors . 32
Table 8 – Classification of earthing switches for induced-current switching . 32
Table 9 – Rated induced currents and voltages . 33
Table 10 – Classification of disconnectors for bus-charging switching . 34
Table 11 – Standard rated bus-charging currents . 34
Table 12 – Product information . 36
Table 13 – List of type tests . 43
Table 14 – Power frequency withstand voltages . 45
Table 15 – Requirements on the instant of making . 56
Table 16 – Invalid tests . 57
Table 17 – Standard values of recovery voltages for electromagnetically induced
current breaking tests . 78
Table 18 – Test circuit capacitances (C values) for electrostatically induced current
switching tests . 80
Table 19 – Test voltages for making and breaking tests . 83
Table 20 – Number of tests . 86
– 8 – IEC 62271-102:2018+AMD1:2022 CSV
© IEC 2022
Table 21 – Power frequency voltage tests . 89
Table B.1 – Average impedances . 99
Table C.1 – Tolerances on test quantities for type tests . 101
© IEC 2022
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 102: Alternating current disconnectors and earthing switches
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
This consolidated version of the official IEC Standard and its amendment has been
prepared for user convenience.
IEC 62271-102 edition 2.1 contains the second edition (2018-05) [documents
17A/1173/FDIS and 17A/1180/RVD] and its amendment 1 (2022-04) [documents
17A/1322/CDV and 17A/1337/RVC].
In this Redline version, a vertical line in the margin shows where the technical content
is modified by amendment 1. Additions are in green text, deletions are in strikethrough
red text. A separate Final version with all changes accepted is available in this
publication.
– 10 – IEC 62271-102:2018+AMD1:2022 CSV
© IEC 2022
International Standard IEC 62271-102 has been prepared by subcommittee 17A: Switching
devices, of IEC technical committee 17: High-voltage switchgear and controlgear.
This second edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) new numbering according to IEC 17/1025/RQ to harmonize with ISO/IEC Directives,
Part 2, and IEEE Std. C37.100.1;
b) clause numbering has been aligned with IEC 62271-1:2017;
c) the Scope has been extended to cover all indoor and outdoor installations. Consideration
of switching devices having disconnecting and/or earthing switch functionalities, apart
from other functions, are also covered by this document;
d) ratings have been moved from Annexes B, C and E to Clause 5; the order of the
subclauses now correspo
...
IEC 62271-102 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
Appareillage à haute tension –
Partie 102: Sectionneurs et sectionneurs de terre à courant alternatif
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form
or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from
either IEC or IEC's member National Committee in the country of the requester. If you have any questions about IEC
copyright or have an enquiry about obtaining additional rights to this publication, please contact the address below or
your local IEC member National Committee for further information.
Droits de reproduction réservés. Sauf indication contraire, aucune partie de cette publication ne peut être reproduite
ni utilisée sous quelque forme que ce soit et par aucun procédé, électronique ou mécanique, y compris la photocopie
et les microfilms, sans l'accord écrit de l'IEC ou du Comité national de l'IEC du pays du demandeur. Si vous avez des
questions sur le copyright de l'IEC ou si vous désirez obtenir des droits supplémentaires sur cette publication, utilisez
les coordonnées ci-après ou contactez le Comité national de l'IEC de votre pays de résidence.
IEC Central Office Tel.: +41 22 919 02 11
3, rue de Varembé info@iec.ch
CH-1211 Geneva 20 www.iec.ch
Switzerland
About the IEC
The International Electrotechnical Commission (IEC) is the leading global organization that prepares and publishes
International Standards for all electrical, electronic and related technologies.
About IEC publications
The technical content of IEC publications is kept under constant review by the IEC. Please make sure that you have the
latest edition, a corrigenda or an amendment might have been published.
IEC Catalogue - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
The stand-alone application for consulting the entire The world's leading online dictionary of electronic and
bibliographical information on IEC International Standards, electrical terms containing 21 000 terms and definitions in
Technical Specifications, Technical Reports and other English and French, with equivalent terms in 16 additional
documents. Available for PC, Mac OS, Android Tablets and languages. Also known as the International Electrotechnical
iPad. Vocabulary (IEV) online.
IEC publications search - webstore.iec.ch/advsearchform IEC Glossary - std.iec.ch/glossary
The advanced search enables to find IEC publications by a 67 000 electrotechnical terminology entries in English and
variety of criteria (reference number, text, technical French extracted from the Terms and Definitions clause of
committee,…). It also gives information on projects, replaced IEC publications issued since 2002. Some entries have been
and withdrawn publications. collected from earlier publications of IEC TC 37, 77, 86 and
CISPR.
IEC Just Published - webstore.iec.ch/justpublished
Stay up to date on all new IEC publications. Just Published IEC Customer Service Centre - webstore.iec.ch/csc
details all new publications released. Available online and If you wish to give us your feedback on this publication or
also once a month by email. need further assistance, please contact the Customer Service
Centre: sales@iec.ch.
A propos de l'IEC
La Commission Electrotechnique Internationale (IEC) est la première organisation mondiale qui élabore et publie des
Normes internationales pour tout ce qui a trait à l'électricité, à l'électronique et aux technologies apparentées.
A propos des publications IEC
Le contenu technique des publications IEC est constamment revu. Veuillez vous assurer que vous possédez l’édition la
plus récente, un corrigendum ou amendement peut avoir été publié.
Catalogue IEC - webstore.iec.ch/catalogue Electropedia - www.electropedia.org
Application autonome pour consulter tous les renseignements
Le premier dictionnaire en ligne de termes électroniques et
bibliographiques sur les Normes internationales,
électriques. Il contient 21 000 termes et définitions en anglais
Spécifications techniques, Rapports techniques et autres
et en français, ainsi que les termes équivalents dans 16
documents de l'IEC. Disponible pour PC, Mac OS, tablettes
langues additionnelles. Egalement appelé Vocabulaire
Android et iPad.
Electrotechnique International (IEV) en ligne.
Recherche de publications IEC -
Glossaire IEC - std.iec.ch/glossary
webstore.iec.ch/advsearchform
67 000 entrées terminologiques électrotechniques, en anglais
La recherche avancée permet de trouver des publications IEC et en français, extraites des articles Termes et Définitions des
en utilisant différents critères (numéro de référence, texte, publications IEC parues depuis 2002. Plus certaines entrées
comité d’études,…). Elle donne aussi des informations sur les antérieures extraites des publications des CE 37, 77, 86 et
projets et les publications remplacées ou retirées. CISPR de l'IEC.
IEC Just Published - webstore.iec.ch/justpublished Service Clients - webstore.iec.ch/csc
Restez informé sur les nouvelles publications IEC. Just Si vous désirez nous donner des commentaires sur cette
Published détaille les nouvelles publications parues. publication ou si vous avez des questions contactez-nous:
Disponible en ligne et aussi une fois par mois par email. sales@iec.ch.
IEC 62271-102 ®
Edition 2.0 2018-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
colour
inside
High-voltage switchgear and controlgear –
Part 102: Alternating current disconnectors and earthing switches
Appareillage à haute tension –
Partie 102: Sectionneurs et sectionneurs de terre à courant alternatif
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10; 29.130.99 ISBN 978-2-8322-5654-1
– 2 – IEC 62271-102:2018 © IEC 2018
CONTENTS
FOREWORD . 9
1 Scope . 12
2 Normative references . 12
3 Terms and definitions . 13
3.1 General terms and definitions . 13
3.2 Assemblies of switchgear and controlgear . 14
3.3 Parts of assemblies . 14
3.4 Switching devices . 14
3.5 Parts of switching devices . 15
3.6 Operation . 18
3.7 Characteristic quantities . 19
3.8 Index of definitions . 24
4 Normal and special service conditions . 26
5 Ratings . 26
5.1 General . 26
5.2 Rated voltage (U ) . 27
r
5.3 Rated insulation level (U , U , U ) . 27
d p s
5.4 Rated frequency (f ) . 27
r
5.5 Rated continuous current (I ) . 27
r
5.6 Rated short-time withstand current (I ) . 27
k
5.7 Rated peak withstand current (I ) . 27
p
5.8 Rated duration of short-circuit (t ) . 28
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 28
a
5.10 Rated supply frequency of auxiliary circuits and control circuits . 28
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 28
5.11.101 Rated pressure of compressed gas supply for insulation and/or
switching . 28
5.11.102 Rated pressure of compressed gas supply for operation . 28
5.101 Rated short-circuit making current (I ) . 28
ma
5.102 Classification of earthing switches for short-circuit making . 28
5.103 Rated contact zone . 29
5.104 Rated static mechanical terminal load . 29
5.105 Classification of disconnectors for mechanical endurance . 30
5.106 Classification of earthing switches for mechanical endurance . 31
5.107 Rated ice-coating . 31
5.108 Rated values of disconnectors for bus-transfer current switching . 31
5.108.1 Rated bus-transfer current . 31
5.108.2 Rated bus-transfer voltage. 32
5.109 Classification and rated values of earthing switches for induced current
switching . 32
5.110 Classification and rated values of disconnectors for bus-charging current
switching . 33
6 Design and construction . 34
6.1 Requirements for liquids in disconnectors and earthing switches . 34
6.2 Requirements for gases in disconnectors and earthing switches . 34
6.3 Earthing of disconnectors and earthing switches . 34
6.4 Auxiliary and control equipment and circuits . 35
6.5 Dependent power operation . 35
6.6 Stored energy operation . 35
6.7 Independent unlatched operation (independent manual or power operation) . 35
6.8 Manually operated actuators . 35
6.9 Operation of releases . 35
6.10 Pressure/level indication . 35
6.11 Nameplates. 35
6.12 Locking devices . 38
6.13 Position indication . 38
6.14 Degree of protection provided by enclosures . 38
6.15 Creepage distances for outdoor insulators . 38
6.16 Gas and vacuum tightness . 38
6.17 Tightness for liquid systems . 38
6.18 Fire hazard (flammability) . 38
6.19 Electromagnetic compatibility (EMC) . 38
6.20 X-ray emission . 38
6.21 Corrosion . 38
6.22 Filling levels for insulation, switching and/or operation . 39
6.101 Particular requirements for earthing switches . 39
6.102 Requirements in respect of the isolating distance of disconnectors . 39
6.103 Mechanical strength . 39
6.104 Operation of disconnectors and earthing switches – Position of the movable
contact system and its indicating and signalling devices . 40
6.104.1 Securing of position . 40
6.104.2 Additional requirements for power-operated mechanisms . 40
6.104.3 Indication and signalling of position . 40
6.105 Maximum force required for manual (dependent or independent) operation . 41
6.105.1 General . 41
6.105.2 Operation requiring more than one revolution . 42
6.105.3 Operation requiring up to one revolution . 42
6.106 Dimensional tolerances . 42
6.107 Earthing switches with short-circuit making current capability . 42
7 Type tests . 42
7.1 General . 42
7.1.1 Basics . 42
7.1.2 Information for identification of test objects . 44
7.1.3 Information to be included in type test reports . 44
7.2 Dielectric tests . 44
7.2.1 General . 44
7.2.2 Ambient air conditions during tests . 44
7.2.3 Wet test procedure . 44
7.2.4 Arrangement of the equipment . 44
7.2.5 Criteria to pass the test . 45
7.2.6 Application of the test voltage and test conditions . 45
7.2.7 Tests of disconnectors and earthing switches of U ≤ 245 kV . 45
r
7.2.8 Test of disconnectors and earthing switches of U > 245 kV . 45
r
7.2.9 Artificial pollution tests for outdoor insulators . 45
7.2.10 Partial discharge tests . 46
– 4 – IEC 62271-102:2018 © IEC 2018
7.2.11 Dielectric tests on auxiliary and control circuits . 46
7.2.12 Voltage test as condition check . 46
7.3 Radio interference voltage (RIV) test . 46
7.4 Resistance measurement . 46
7.5 Continuous current tests . 46
7.6 Short-time withstand current and peak withstand current tests . 46
7.6.1 General . 46
7.6.2 Arrangement of the disconnectors and earthing switches and of the test
circuit . 46
7.6.3 Test current and duration . 52
7.6.4 Conditions of disconnectors and earthing switches after test . 52
7.7 Verification of the protection . 53
7.8 Tightness tests . 53
7.9 Electromagnetic compatibility tests (EMC) . 53
7.10 Additional tests on auxiliary and control circuits . 53
7.11 X-ray radiation test for vacuum interrupters. 53
7.101 Test to prove the short-circuit making performance of earthing switches . 54
7.101.1 General test conditions . 54
7.101.2 Arrangement of the earthing switch for tests . 54
7.101.3 Test frequency . 54
7.101.4 Test voltage . 54
7.101.5 Test short-circuit making current . 55
7.101.6 Test circuits . 55
7.101.7 Test procedures . 55
7.101.8 Behaviour of earthing switches when making short-circuit currents . 56
7.101.9 Condition of earthing switch after short-circuit making tests . 56
7.101.10 Invalid tests . 57
7.101.11 Type test reports . 57
7.102 Operating and mechanical endurance tests . 58
7.102.1 General test conditions . 58
7.102.2 Contact zone test. 58
7.102.3 Mechanical endurance test . 61
7.102.4 Operation during the application of rated static mechanical terminal
loads . 63
7.102.5 Extended mechanical endurance tests . 64
7.102.6 Testing of mechanical interlocking devices. . 65
7.103 Operation under severe ice conditions . 65
7.103.1 General . 65
7.103.2 Test arrangement . 65
7.103.3 Test procedure . 66
7.104 Low- and high-temperature tests . 67
7.104.1 General . 67
7.104.2 Measurement of ambient air temperature . 68
7.104.3 Low-temperature test . 68
7.104.4 High-temperature test . 70
7.105 Tests to verify the proper functioning of the position-indicating device . 70
7.105.1 General . 70
7.105.2 Tests on the power kinematic chain and the position-indicating
kinematic chain . 71
7.106 Bus-transfer current switching tests on disconnectors . 71
7.106.1 General . 71
7.106.2 Making and breaking tests . 71
7.107 Induced current switching tests on earthing switches . 75
7.107.1 General . 75
7.107.2 Arrangement of the earthing switch for tests . 75
7.107.3 Earthing of test circuit and earthing switch . 76
7.107.4 Test frequency . 76
7.107.5 Test voltage . 76
7.107.6 Test currents . 76
7.107.7 Test circuits . 76
7.108 Bus-charging current switching tests on disconnectors. 81
7.108.1 General . 81
7.108.2 Test duties . 82
7.108.3 Arrangement of the disconnector for tests . 82
7.108.4 Test frequency . 82
7.108.5 Test voltages for making and breaking tests . 83
7.108.6 Test circuits for making and breaking tests . 84
7.108.7 Performance of making and breaking tests . 86
7.108.8 Behaviour of the disconnector during making and breaking tests . 86
7.108.9 Condition after test . 87
7.108.10 Type test reports . 87
7.108.11 Requirements for U measurements . 88
TVE
8 Routine tests . 88
8.1 General . 88
8.2 Dielectric test on the main circuit . 88
8.3 Tests on auxiliary and control circuits . 89
8.4 Measurement of the resistance of the main circuit . 89
8.5 Tightness test . 89
8.6 Design and visual checks . 89
8.101 Mechanical operating tests . 89
8.102 Verification of earthing function . 90
9 Guide to the selection of disconnectors and earthing switches (informative) . 90
9.1 General . 90
9.2 Selection of rated values . 91
9.2.101 General . 91
9.2.102 Selection of rated voltage and rated insulation level . 91
9.2.103 Selection of rated continuous current . 91
9.2.104 Selection of rated contact zone . 91
9.2.105 Selection of rated static mechanical terminal load . 92
9.2.106 Selection of a bus-transfer current switching capability for
disconnectors of U > 52 kV . 92
r
9.2.107 Selection of an induced-current switching capability for earthing
switches of U > 52 kV . 92
r
9.2.108 Selection of rated short-time withstand current and of rated duration of
short-circuit . 92
9.2.109 Selection of rated peak withstand current and of rated short-circuit
making current for earthing switches. 93
9.2.110 Selection of short-circuit making capability for earthing switches . 93
9.3 Cable-interface considerations . 93
– 6 – IEC 62271-102:2018 © IEC 2018
9.4 Continuous or temporary overload due to changed service conditions . 93
9.5 Environmental aspects . 93
9.5.101 Local environmental conditions . 93
10 Information to be given with enquiries, tenders and orders (informative) . 94
10.1 General . 94
10.2 Information with enquiries and orders . 94
10.3 Information with tenders . 95
11 Transport, storage, installation, operating instructions, and maintenance . 96
11.1 General . 96
11.2 Conditions during transport, storage and installation . 96
11.3 Installation . 96
11.4 Operation . 97
11.5 Maintenance . 97
12 Safety . 97
12.1 General . 97
12.2 Precautions by manufacturers . 97
12.3 Precautions by users . 97
13 Influence of the product on the environment . 97
Annex A (informative) Test voltage for the most disadvantageous dielectric position of
an earthing switch during operation (minimum temporary clearance) . 98
Annex B (informative) Current-switching capability required of disconnectors and
earthing switches . 99
B.1 Bus-transfer current switching capability of disconnectors . 99
B.2 Bus-charging current switching capability of disconnectors . 99
B.3 Induced current-switching capability of earthing switches . 100
Annex C (normative) Tolerances on test quantities for type tests . 101
Annex D (normative) Alternative test methods for short-circuit current making tests . 103
D.1 General . 103
D.2 Alternative methods . 103
D.2.1 Synthetic test method with both rated voltage and rated short-circuit
current . 103
D.2.2 Test methods with reduced voltage . 103
Annex E (informative) Extension of validity of type tests . 105
E.1 General . 105
E.2 Dielectric tests . 105
E.3 Short-time withstand current tests . 105
E.4 Short-circuit making performance of earthing switches . 105
E.5 Operating and mechanical endurance tests . 105
E.6 Bus-transfer current switching tests on disconnectors . 105
E.7 Induced current switching tests on earthing switches . 106
Bibliography . 107
Figure 1 – Position indicating/signalling device(s) . 40
Figure 2 – Three-phase test arrangement for disconnectors and earthing switches . 48
Figure 3 – Single-phase test arrangement for disconnectors with a horizontal isolating
distance and for earthing switches of U > 52 kV, to be used with flexible or with rigid
r
conductors . 49
Figure 4 – Single-phase test arrangement for divided support disconnectors (earthing
switches) of U > 52 kV with a vertical isolating distance, to be used with flexible
r
conductors . 50
Figure 5 – Single-phase test arrangement for divided support disconnectors (earthing
switches) of U > 52 kV with a vertical isolating distance, to be used with rigid
r
conductors . 51
Figure 6 – Fixed contact parallel to support . 59
Figure 7 – Fixed contact perpendicular to support . 60
Figure 8 – Example of the application of rated static mechanical terminal loads to a
(divided support) pantograph disconnector (or earthing switch) . 61
Figure 9 – Example of the application of rated static mechanical terminal loads to a
two-column disconnector . 62
Figure 10 – Test sequences for low and high temperature tests . 68
Figure 11 – Example of test circuit for bus-transfer current switching tests . 73
Figure 12 – Test circuit for electromagnetically induced current switching tests . 77
Figure 13 – Test circuits for electrostatically induced current-switching tests . 79
Figure 14 – Test circuit for test duty 1 . 83
Figure 15 – Typical voltage waveform (Including VFT and FT components) . 85
Figure 16 – Test circuit for test duty 2 . 85
Figure 17 – Test circuit for test duty 3 . 86
Figure B.1 – Examples of resistor-fitted disconnectors . 100
Table 1 – Classification of earthing switches for short-circuit making . 28
Table 2 – Preferred contact zones for "fixed" contacts supported by flexible
conductors . 29
Table 3 – Preferred contact zones for "fixed" contacts supported by rigid conductors . 29
Table 4 – Preferred static mechanical terminal loads . 30
Table 5 – Classification of disconnectors for mechanical endurance . 31
Table 6 – Classification of earthing switches for mechanical endurance . 31
Table 7 – Rated bus-transfer voltages of disconnectors . 32
Table 8 – Classification of earthing switches for induced-current switching . 32
Table 9 – Rated induced currents and voltages . 33
Table 10 – Classification of disconnectors for bus-charging switching . 34
Table 11 – Standard rated bus-charging currents . 34
Table 12 – Product information . 36
Table 13 – List of type tests . 43
Table 14 – Power frequency withstand voltages . 45
Table 15 – Requirements on the instant of making . 56
Table 16 – Invalid tests . 57
Table 17 – Standard values of recovery voltages for electromagnetically induced
current breaking tests . 78
Table 18 – Test circuit capacitances (C values) for electrostatically induced current
switching tests . 80
Table 19 – Test voltages for making and breaking tests . 83
Table 20 – Number of tests . 86
– 8 – IEC 62271-102:2018 © IEC 2018
Table 21 – Power frequency voltage tests . 89
Table B.1 – Average impedances . 99
Table C.1 – Tolerances on test quantities for type tests . 101
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 102: Alternating current disconnectors and earthing switches
FOREWORD
1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising
all national electrotechnical committees (IEC National Committees). The object of IEC is to promote
international co-operation on all questions concerning standardization in the electrical and electronic fields. To
this end and in addition to other activities, IEC publishes International Standards, Technical Specifications,
Technical Reports, Publicly Available Specifications (PAS) and Guides (hereafter referred to as "IEC
Publication(s)"). Their preparation is entrusted to technical committees; any IEC National Committee interested
in the subject dealt with may participate in this preparatory work. International, governmental and non-
governmental organizations liaising with the IEC also participate in this preparation. IEC collaborates closely
with the International Organization for Standardization (ISO) in accordance with conditions determined by
agreement between the two organizations.
2) The formal decisions or agreements of IEC on technical matters express, as nearly as possible, an international
consensus of opinion on the relevant subjects since each technical committee has representation from all
interested IEC National Committees.
3) IEC Publications have the form of recommendations for international use and are accepted by IEC National
Committees in that sense. While all reasonable efforts are made to ensure that the technical content of IEC
Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any
misinterpretation by any end user.
4) In order to promote international uniformity, IEC National Committees undertake to apply IEC Publications
transparently to the maximum extent possible in their national and regional publications. Any divergence
between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in
the latter.
5) IEC itself does not provide any attestation of conformity. Independent certification bodies provide conformity
assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any
services carried out by independent certification bodies.
6) All users should ensure that they have the latest edition of this publication.
7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and
members of its technical committees and IEC National Committees for any personal injury, property damage or
other damage of any nature whatsoever, whether direct or indirect, or for costs (including legal fees) and
expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC
Publications.
8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is
indispensable for the correct application of this publication.
9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of
patent rights. IEC shall not be held responsible for identifying any or all such patent rights.
International Standard IEC 62271-102 has been prepared by subcommittee 17A: Switching
devices, of IEC technical committee 17: High-voltage switchgear and controlgear.
This second edition cancels and replaces the first edition published in 2001,
Amendment 1:2011 and Amendment 2:2013. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) new numbering according to IEC 17/1025/RQ to harmonize with ISO/IEC Directives,
Part 2, and IEEE Std. C37.100.1;
b) clause numbering has been aligned with IEC 62271-1:2017;
c) the Scope has been extended to cover all indoor and outdoor installations. Consideration
of switching devices having disconnecting and/or earthing switch functionalities, apart
from other functions, are also covered by this document;
– 10 – IEC 62271-102:2018 © IEC 2018
d) ratings have been moved from Annexes B, C and E to Clause 5; the order of the
subclauses now corresponds to the order of subclauses in Clause 7;
e) new rating values for bus-transfer current and bus-transfer voltage have been assigned;
f) new class of mechanical endurance for earthing switches has been added (M1);
g) subclause "Rated values of electrical endurance for earthing switches" is now c
...
Questions, Comments and Discussion
Ask us and Technical Secretary will try to provide an answer. You can facilitate discussion about the standard in here.
Loading comments...