High-voltage switchgear and controlgear - Part 107: Alternating current fused circuit-switchers for rated voltages above 1 kV up to and including 52 kV (IEC 62271-107:2019)

This part of IEC 62271 applies to three-pole-operated fused circuit-switchers designed with
rated voltages above 1 kV up to and including 52 kV for use on three-phase alternating
current systems of either 50 Hz or 60 Hz.
They can be designed either as stand-alone devices, or be embedded in a switchgear and
controlgear assembly.
They are intended to be used for circuits or applications requiring only a normal mechanical
and electrical endurance capability. Such applications cover protection of HV/LV transformers
for instance, but exclude distribution lines or cables, as well as motor circuits and capacitor
bank circuits.
Short-circuit conditions with low currents, up to the fused circuit-switcher rated take-over
current, are dealt with by supplementary devices (strikers, relays, etc.), properly arranged,
tripping the circuit-switcher. Current-limiting fuses are incorporated in order to ensure that the
short-circuit breaking capacity of the device is above that of the circuit-switcher alone.
NOTE 1 In this document, the term "fuse" is used to designate either the fuse or the fuse-link where the general
meaning of the text does not result in ambiguity.
NOTE 2 Other circuit-switchers exist; see reference [4].
Devices that require a dependent manual operation are not covered by this document.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 107: Wechselstrom-Leistungsschalter-Sicherungs-Kombinationen für Bemessungsspannungen über 1 kV bis einschließlich 52 kV (IEC 62271-107:2019)

Appareillage à haute tension - Partie 107: Circuits-switchers fusiblés pour courant alternatif de tension assignée supérieure à 1 kV et jusqu'à 52 kV inclus (IEC 62271-107:2019)

IEC 62271-107:2019 est disponible sous forme de IEC 62271-107:2019 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente.L'IEC 62271-107:2019 s'applique aux circuits-switchers à fusibles à manœuvre tripolaire conçus avec des tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV, pour utilisation sur des réseaux alternatifs triphasés de fréquence 50 Hz ou 60 Hz. Cette troisième édition annule et remplace la deuxième édition parue en 2012. Cette édition constitue une révision technique. Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente: a) les modifications techniques introduites par la deuxième édition de l'IEC 62271-1 sont appliquées, lorsqu'elles sont pertinentes; b) la TTR assignée est supprimée et la TTR est maintenant traitée comme un paramètre d'essai, comme dans l'IEC 62271-100; c) le terme "courant thermique" n'est plus employé; le courant permanent assigné est lié aux éléments de remplacement installés, et les valeurs doivent être fournies par le constructeur ainsi que la liste des éléments de remplacement acceptables; pour les besoins des essais, le courant continu assigné le plus élevé est indiqué dans la liste, en lieu et place du terme "valeur de courant thermique maximal assignée" à des fins de cohérence avec l'IEC 62271-105; d) les séries d'essais d'établissement et de coupure sont des essais de type indépendants (certains peuvent être omis si l'appareil de coupure a été validé en tant qu'interrupteur de charge). Cependant, TDIt0 et TDIlow sont conservés sous forme de séquence car ils sont liés à la même valeur assignée (It0); e) une distinction est désormais faite entre les exigences formulées pour remplir la fonction attendue d'un circuit-switcher à fusibles, et celles uniquement pertinentes lorsque la fonction est assurée par un appareil autonome. L'objectif est d'éviter la duplication ou les conflits d'exigences avec une norme traitant des ensembles, lorsque la fonction est mise en œuvre au sein d'un tel ensemble.

Visokonapetostne stikalne in krmilne naprave - 107. del: Stikala za izmenični tok z vgrajeno varovalko za naznačene napetosti nad 1 kV do vključno 52 kV (IEC 62271-107:2019)

Ta del standarda IEC 62271 se uporablja za tripolna delujoča stikala z vgrajeno varovalko, ki so zasnovana z naznačeno napetostjo nad 1 kV do vključno 52 kV za uporabo v trifaznih električnih sistemih z izmeničnim tokom in frekvenco 50 Hz ali 60 Hz.
Zasnovana so lahko kot samostojne naprave ali pa so vdelana v sestave stikalnih in krmilnih naprav.
Namenjena so za uporabo v tokokrogih ali napravah, za katere je potrebna le običajna mehanska in električna vzdržljivost. Take naprave zajemajo na primer zaščito visoko- ali nizkonapetostnih transformatorjev, vendar ne vključujejo razdelilnih omrežij ali kablov ter tokokrogov za motorje in tokokrogov za kondenzatorske baterije.
Kratkostična stanja z nizkimi tokovi do naznačenega prevzemnega toka stikal z vgrajeno varovalko upravljajo dodatne naprave (strikerji, releji itd.), ki ustrezno nameščene sprožijo stikalo. Tokovno omejilne varovalke se vgradijo, da se zagotovi, da je zmogljivost naprave glede prekinjanja kratkega stika nad zmogljivostjo samega stikala.
OPOMBA 1: V tem dokumentu se izraz »varovalka« uporablja za varovalko ali talilni vložek, pri čemer splošen pomen besedila ni dvoumen.
OPOMBA 2: Obstajajo tudi druga stikala; glej referenco [4].
Naprave, ki zahtevajo odvisno ročno upravljanje, niso zajete v tem dokumentu.

General Information

Status
Published
Publication Date
18-Aug-2019
Current Stage
6060 - National Implementation/Publication (Adopted Project)
Start Date
25-Jul-2019
Due Date
29-Sep-2019
Completion Date
19-Aug-2019

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SLOVENSKI STANDARD
SIST EN IEC 62271-107:2019
01-oktober-2019
Nadomešča:
SIST EN 62271-107:2012

Visokonapetostne stikalne in krmilne naprave - 107. del: Stikala za izmenični tok z

vgrajeno varovalko za naznačene napetosti nad 1 kV do vključno 52 kV (IEC 62271-
107:2019)

High-voltage switchgear and controlgear - Part 107: Alternating current fused circuit-

switchers for rated voltages above 1 kV up to and including 52 kV (IEC 62271-107:2019)

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 107: Wechselstrom-

Leistungsschalter-Sicherungs-Kombinationen für Bemessungsspannungen über 1 kV bis

einschließlich 52 kV (IEC 62271-107:2019)

Appareillage à haute tension - Partie 107: Circuits-switchers fusiblés pour courant

alternatif de tension assignée supérieure à 1 kV et jusqu'à 52 kV inclus (IEC 62271-

107:2019)
Ta slovenski standard je istoveten z: EN IEC 62271-107:2019
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
SIST EN IEC 62271-107:2019 en

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

---------------------- Page: 1 ----------------------
SIST EN IEC 62271-107:2019
---------------------- Page: 2 ----------------------
SIST EN IEC 62271-107:2019
EUROPEAN STANDARD EN IEC 62271-107
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2019
ICS 29.130.10 Supersedes EN 62271-107:2012 and all of its
amendments and corrigenda (if any)
English Version
High-voltage switchgear and controlgear - Part 107: Alternating
current fused circuit-switchers for rated voltages above 1 kV up
to and including 52 kV
(IEC 62271-107:2019)

Appareillage à haute tension - Partie 107: Circuits-switchers Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil

à fusibles pour courant alternatif de tension assignée 107: Wechselstrom-Leistungsschalter-Sicherungs-

supérieure à 1 kV et jusqu'à 52 kV inclus Kombinationen für Bemessungsspannungen über 1 kV bis

(IEC 62271-107:2019) einschließlich 52 kV
(IEC 62271-107:2019)

This European Standard was approved by CENELEC on 2019-07-02. CENELEC members are bound to comply with the CEN/CENELEC

Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.

Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC

Management Centre or to any CENELEC member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation

under the responsibility of a CENELEC member into its own language and notified to the CEN-CENELEC Management Centre has the

same status as the official versions.

CENELEC members are the national electrotechnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic,

Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the

Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland,

Turkey and the United Kingdom.
European Committee for Electrotechnical Standardization
Comité Européen de Normalisation Electrotechnique
Europäisches Komitee für Elektrotechnische Normung
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels

© 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.

Ref. No. EN IEC 62271-107:2019 E
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SIST EN IEC 62271-107:2019
EN IEC 62271-107:2019 (E)
European foreword

The text of document 17A/1216/FDIS, future edition 3 of IEC 62271-107, prepared by SC 17A "Switching

devices" of IEC/TC 17 "High-voltage switchgear and controlgear" was submitted to the IEC-CENELEC parallel

vote and approved by CENELEC as EN IEC 62271-107:2019.
The following dates are fixed:

• latest date by which the document has to be implemented at national level by (dop) 2020-04-02

publication of an identical national standard or by endorsement

• latest date by which the national standards conflicting with the (dow) 2022-07-02

document have to be withdrawn

This document supersedes EN 62271-107:2012and all of its amendments and corrigenda (if any).

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent

rights. CENELEC shall not be held responsible for identifying any or all such patent rights.

Endorsement notice

The text of the International Standard IEC 62271-107:2019 was approved by CENELEC as a European

Standard without any modification.

In the official version, for Bibliography, the following notes have to be added for the standards indicated:

IEC 62271-102 NOTE Harmonized as EN IEC 62271-102
IEC 62271-200 NOTE Harmonized as EN 62271-200
IEC 62271-201 NOTE Harmonized as EN 62271-201
---------------------- Page: 4 ----------------------
SIST EN IEC 62271-107:2019
EN IEC 62271-107:2019 (E)
Annex ZA
(normative)
Normative references to international publications
with their corresponding European publications

The following documents are referred to in the text in such a way that some or all of their content constitutes

requirements of this document. For dated references, only the edition cited applies. For undated references, the

latest edition of the referenced document (including any amendments) applies.

NOTE 1 Where an International Publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies.

NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu.

Publication Year Title EN/HD Year
IEC 60282-1 2009 High-voltage fuses - Part 1: Current-limiting EN 60282-1 2009
fuses
+ A1 2014 + A1 2014
IEC 62271-1 2017 High-voltage switchgear and controlgear - EN 62271-1 2017
Part 1: Common specifications for
alternating current switchgear and
controlgear
IEC 62271-100 2008 High-voltage switchgear and controlgear - EN 62271-100 2009
Part 100: Alternating current circuit-breakers
+ A1 2012 + A1 2012
+ A2 2017 + A2 2017
IEC 62271-103 2011 High-voltage switchgear and controlgear - EN 62271-103 2011
Part 103: Switches for rated voltages above
1 kV up to and including 52 kV
IEC 62271-105 2012 High-voltage switchgear and controlgear - EN 62271-105 2012
Part 105: Alternating current switch-fuse
combinations for rated voltages above 1 kV
up to and including 52 kV
---------------------- Page: 5 ----------------------
SIST EN IEC 62271-107:2019
---------------------- Page: 6 ----------------------
SIST EN IEC 62271-107:2019
IEC 62271-107
Edition 3.0 2019-05
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –
Part 107: Alternating current fused circuit-switchers for rated voltages
above 1 kV up to and including 52 kV
Appareillage à haute tension –
Partie 107: Circuits-switchers à fusibles pour courant alternatif de tension
assignée supérieure à 1 kV et jusqu'à 52 kV inclus
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-6924-4

Warning! Make sure that you obtained this publication from an authorized distributor.

Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agréé.

® Registered trademark of the International Electrotechnical Commission
Marque déposée de la Commission Electrotechnique Internationale
---------------------- Page: 7 ----------------------
SIST EN IEC 62271-107:2019
– 2 – IEC 62271-107:2019 © IEC 2019
CONTENTS

FOREWORD ........................................................................................................................... 6

INTRODUCTION ..................................................................................................................... 8

1 Scope .............................................................................................................................. 9

2 Normative references ...................................................................................................... 9

3 Terms and definitions .................................................................................................... 10

3.1 General terms and definitions ............................................................................... 10

3.2 Assemblies of switchgear and controlgear ............................................................ 10

3.3 Parts of assemblies .............................................................................................. 10

3.4 Switching devices ................................................................................................. 10

3.5 Parts of switchgear and controlgear ...................................................................... 10

3.6 Operational characteristics of switchgear and controlgear ..................................... 11

3.7 Characteristic quantities ....................................................................................... 11

3.101 Fuses ................................................................................................................... 14

4 Normal and special service conditions ........................................................................... 14

5 Ratings .......................................................................................................................... 15

5.1 General ................................................................................................................. 15

5.2 Rated voltage (U ) ................................................................................................ 15

5.3 Rated insulation level (U , U , U ) ....................................................................... 15

d p s

5.4 Rated frequency (f ) .............................................................................................. 15

5.5 Rated continuous current (I ) ................................................................................ 15

5.6 Rated short-time withstand current (I ) ................................................................. 15

5.7 Rated peak withstand current (I ) ......................................................................... 15

5.8 Rated duration of short-circuit (t ) ......................................................................... 16

5.9 Rated supply voltage of auxiliary and control circuits (U ) .................................... 16

5.10 Rated supply frequency of auxiliary and control circuits ........................................ 16

5.11 Rated pressure of compressed gas supply for controlled pressure systems .......... 16

5.101 Rated short-circuit breaking current (I ) .............................................................. 16

5.102 Rated short-circuit making current (I ) ............................................................... 16

5.103 Rated take-over current (I ) ................................................................................. 17

6 Design and construction ................................................................................................ 18

6.1 Requirements for liquids in fused circuit-switchers ................................................ 18

6.2 Requirements for gases in fused circuit-switchers ................................................. 18

6.3 Earthing of fused circuit-switchers ........................................................................ 18

6.4 Auxiliary and control equipment and circuits ......................................................... 18

6.5 Dependent power operation .................................................................................. 18

6.6 Stored energy operation........................................................................................ 18

6.7 Independent unlatched operation (independent manual or power operation) ......... 18

6.8 Manually operated actuators ................................................................................. 18

6.9 Operation of releases............................................................................................ 18

6.10 Pressure/level indication ....................................................................................... 18

6.11 Nameplates .......................................................................................................... 18

6.12 Locking devices .................................................................................................... 20

6.13 Position indication ................................................................................................. 20

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SIST EN IEC 62271-107:2019
IEC 62271-107:2019 © IEC 2019 – 3 –

6.14 Degrees of protection provided by enclosures ....................................................... 20

6.15 Creepage distances for outdoor insulators ............................................................ 20

6.16 Gas and vacuum tightness .................................................................................... 20

6.17 Tightness for liquid systems .................................................................................. 20

6.18 Fire hazard (flammability) ..................................................................................... 20

6.19 Electromagnetic compatibility (EMC) ..................................................................... 20

6.20 X-ray emission ...................................................................................................... 20

6.21 Corrosion .............................................................................................................. 21

6.22 Filling levels for insulation, switching and/or operation .......................................... 21

6.101 Basic requirements for fuses ................................................................................. 21

6.102 Linkages between the fuse striker(s) and the circuit-switcher release ................... 21

6.103 Low over-current conditions (long fuse-pre-arcing time conditions) ....................... 21

6.104 Rated continuous current values ........................................................................... 21

7 Type tests ..................................................................................................................... 22

7.1 General ................................................................................................................. 22

7.2 Dielectric tests ...................................................................................................... 22

7.3 Radio interference voltage (RIV) test .................................................................... 22

7.4 Resistance measurement ...................................................................................... 22

7.5 Continuous current tests ....................................................................................... 22

7.6 Short-time withstand current and peak withstand current tests .............................. 22

7.7 Verification of the protection ................................................................................. 22

7.8 Tightness tests ..................................................................................................... 23

7.9 Electromagnetic compatibility tests (EMC) ............................................................ 23

7.10 Additional tests on auxiliary and control circuits .................................................... 23

7.11 X-radiation test for vacuum interrupters ................................................................ 23

7.101 Making and breaking tests .................................................................................... 23

7.101.1 General ......................................................................................................... 23

7.101.2 Conditions for performing the tests ................................................................ 23

7.101.3 Test duty procedures ..................................................................................... 29

7.101.4 Behaviour of the fused circuit-switcher during tests ....................................... 35

7.101.5 Condition of the apparatus after tests ............................................................ 35

7.102 Mechanical operation tests ................................................................................... 36

7.102.1 General ......................................................................................................... 36

7.102.2 Test procedure .............................................................................................. 36

7.102.3 Condition of fused circuit-switcher during and after mechanical

operation tests ............................................................................................... 37

7.102.4 Condition of the fuses during and after mechanical operation tests ................ 37

7.103 Extension of validity of type tests .......................................................................... 37

7.103.1 General ......................................................................................................... 37

7.103.2 Dielectric properties ....................................................................................... 38

7.103.3 Continuous current tests ................................................................................ 38

7.103.4 Making and breaking ..................................................................................... 38

8 Routine tests ................................................................................................................. 38

8.1 General ................................................................................................................. 38

8.2 Dielectric test on the main circuit .......................................................................... 38

8.3 Tests on auxiliary and control circuits ................................................................... 38

8.4 Measurement of the resistance of the main circuit ................................................. 39

8.5 Tightness test ....................................................................................................... 39

8.6 Design and visual checks ...................................................................................... 39

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SIST EN IEC 62271-107:2019
– 4 – IEC 62271-107:2019 © IEC 2019

8.101 Mechanical operating tests ................................................................................... 39

9 Guide to the selection of fused circuit-switchers (informative) ........................................ 40

9.1 General ................................................................................................................. 40

9.2 Selection of rated values ....................................................................................... 40

9.3 Cable interface consideration ................................................................................ 40

9.4 Continuous or temporary overload due to changed service conditions ................... 40

9.5 Environmental aspects .......................................................................................... 40

9.101 Additional criteria .................................................................................................. 40

9.102 Rated short-circuit breaking current ...................................................................... 41

9.103 Rated continuous current ...................................................................................... 41

9.104 Currents between rated continuous current and I of the fuses ............................. 41

9.105 Transfer current .................................................................................................... 41

9.106 Take-over current ................................................................................................. 41

9.107 Extension of the validity of type tests .................................................................... 42

9.108 Operation .............................................................................................................. 42

9.109 Comparison of performances of fused circuit-switchers with performances of

switch-fuse combinations and circuit-breakers ...................................................... 43

10 Information to be given with enquiries, tenders and orders (informative) ........................ 43

10.1 General ................................................................................................................. 43

10.2 Information with enquiries and orders ................................................................... 43

10.3 Information with tenders ........................................................................................ 43

11 Transport, storage, installation, operating instructions and maintenance ....................... 44

12 Safety ............................................................................................................................ 44

13 Influence of the product on the environment .................................................................. 44

Annex A (informative) Applicability of the rated take-over current test duty .......................... 45

A.1 Problem formulation .............................................................................................. 45

A.2 Background .......................................................................................................... 45

A.3 Terms, definitions and symbols ............................................................................. 46

A.4 Assumptions about the fuse melting process ......................................................... 47

A.4.1 General ......................................................................................................... 47

A.4.2 First phase .................................................................................................... 47

A.4.3 Second phase ................................................................................................ 47

A.4.4 Modelling of the "application margin" ............................................................. 48

A.5 Mathematical expression of the application requirements ...................................... 48

A.5.1 General ......................................................................................................... 48

A.5.2 First pole-to-clear .......................................................................................... 48

A.5.3 Second pole-to-clear ..................................................................................... 48

A.6 Analysis ................................................................................................................ 50

A.6.1 Applications with fuse strikers ........................................................................ 50

A.6.2 Applications with protection relays ................................................................. 51

A.7 Conclusions .......................................................................................................... 52

Annex B (informative) Particular conditions existing in certain countries .............................. 53

Bibliography .......................................................................................................................... 54

Figure 1 – Characteristics for determining the take-over current ........................................... 17

Figure 2 – Arrangement of test circuits for test duties TD , TD , TD and TD ........... 26

Ir Isc Ito Ilow
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SIST EN IEC 62271-107:2019
IEC 62271-107:2019 © IEC 2019 – 5 –

Figure 3 – Representation of a specified TRV by a two-parameter reference line and a

delay line .............................................................................................................................. 28

Figure 4 – Example of a two parameters envelope for a TRV ................................................ 29

Figure 5 – Measurement of the power frequency recovery voltage with striker operation ....... 31

Figure A.1 – Visualization of the application margin for a given fuse ..................................... 47

Table 1 – Nameplate information .......................................................................................... 19

Table 2 – Summary of test parameters for test duties ........................................................... 34

Table 3 – Comparison between switch-fuse combination and fused circuit-switcher .............. 43

Table 4 – Comparison between fused circuit-switcher and circuit breaker ............................. 43

Table A.1 – Minimum application margin Am according to fuse characteristic ........................ 51

Table A.2 – Minimum protection time delay ........................................................................... 51

Table A.3 – Examples of possible need for time delay .......................................................... 52

Table B.1 – Voltages used in the Czech Republic ................................................................. 53

Table B.2 – Rated insulation levels for voltage ratings of Table B.1 ...................................... 53

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SIST EN IEC 62271-107:2019
– 6 – IEC 62271-107:2019 © IEC 2019
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 107: Alternating current fused circuit-switchers for
rated voltages above 1 kV up to and including 52 kV
FOREWORD

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all national electrotechnical committees (IEC National Committees). The object of IEC is to promote

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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 62271-107 has been prepared by subcommittee 17A: Switching

devices, of IEC technical committee 17: High-voltage switchgear and controlgear
This third edition cancels and replaces the sec
...

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