EN IEC 62271-105:2023

High-voltage switchgear and controlgear - Part 105: Alternating current switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV

IEC 62271-105:2021 is available as IEC 62271-105:2021 RLV which contains the International Standard and its Redline version, showing all changes of the technical content compared to the previous edition. IEC 62271-105:2021 applies to three-pole units for public and industrial distribution systems which are functional assemblies of switches composed of switches or switch-disconnectors and current-limiting fuses designed so as to be capable of - breaking, at the rated voltage, any current up to and including the rated short-circuit breaking current; - making, at the rated voltage, circuits to which the rated short-circuit breaking current applies. This third edition cancels and replaces the second edition published in 2012. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: - the document has been updated to be in alignment with the second edition of IEC 62271-1:2017; - rated TRV has been removed (TRV is only a test parameter), as in the latest revision of IEC 62271-100; - differentiation has been introduced between requirements expressed for fulfilling the function expected from a switch-fuse combination, from requirements only relevant when the function is performed by a stand-alone device. The goal is to avoid duplication or conflicts of requirements with a standard dealing with assemblies, when the function is implemented within such an assembly.

Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 105: Wechselstrom-Lastschalter-Sicherungs-Kombinationen für Bemessungsspannungen über 1 kV bis einschließlich 52 kV

Appareillage à haute tension - Partie 105: Combinés interrupteurs-fusibles pour courant alternatif de tensions assignées supérieures à 1 kV et jusqu'à 52 kV inclus

IEC 62271-105:2021 est disponible sous forme de IEC 62271-105:2021 RLV qui contient la Norme internationale et sa version Redline, illustrant les modifications du contenu technique depuis l'édition précédente. L’IEC 62271-105:2021 est applicable aux appareils tripolaires utilisés dans les réseaux de distribution publics ou les installations industrielles. Ces derniers forment des ensembles fonctionnels composés d'interrupteurs ou d'interrupteurs-sectionneurs et de fusibles limiteurs de courant, conçus pour être capables de - couper, à la tension assignée, tous les courants jusqu'au pouvoir de coupure assigné en court-circuit inclus; - établir, à la tension assignée, des circuits pour lesquels le pouvoir de coupure assigné en court-circuit s’applique. 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: - le document a été mis à jour conformément à la 2e édition de l’IEC 62271-1:2017; - la TTR assignée est supprimée (la TTR n’est qu’un paramètre d’essai) comme dans la dernière édition de l’IEC 62271‑100; - une distinction est désormais faite entre les exigences spécifiées pour l’exécution de la fonction attendue d’un combiné interrupteur-fusibles, et les exigences qui ne sont pertinentes que lorsque la fonction est exécutée par un appareil autonome. Cette distinction a pour but d’éviter des répétitions ou des contradictions d’exigences avec une norme traitant d’ensembles, lorsque la fonction est mise en œuvre au sein d’un tel ensemble.

Visokonapetostne stikalne in krmilne naprave - 105. del: Kombinacije stikal za izmenični tok z varovalkami za naznačene napetosti nad 1 kV do vključno 52 kV (IEC 62271-105:2021)

Standard IEC 62271-105:2021 je na voljo kot IEC 62271-105:2021 RLV, ki vsebuje mednarodni standard in njegovo različico z revizijami, ki prikazujejo vse spremembe tehnične vsebine v primerjavi s prejšnjo izdajo.
Standard IEC 62271-105:2021 se uporablja za tripolne enote za javne in industrijske razdelilne sisteme, ki so funkcionalni sestavi stikal ter vključujejo navadna ali ločilna stikala in varovalke za omejevanje toka, pri čemer lahko:
– pri naznačeni napetosti prekinejo kakršen koli tok do naznačenega kratkostičnega prekinjenega toka (vključno z njim);
– pri naznačeni napetosti vzpostavijo tokokroge, v zvezi s katerimi se uporablja naznačeni kratkostični prekinjeni tok.
Tretja izdaja razveljavlja in nadomešča drugo izdajo, objavljeno leta 2012. Ta izdaja je tehnično popravljena izdaja.
Ta izdaja v primerjavi s prejšnjo vključuje naslednje pomembne tehnične spremembe:
– dokument je bil posodobljen in je usklajen z drugo izdajo standarda IEC 62271-1:2017;
– naznačena prehodna povratna napetost (TRV) je bila odstranjena, saj gre zgolj za preskusni parameter, kot je razvidno iz zadnje izdaje standarda IEC 62271-100;
– uvedeno je bilo razlikovanje med zahtevami, izraženimi za izpolnjevanje funkcije, ki se pričakuje od kombinacije stikala z varovalko, in zahtevami, ki so relevantne le, kadar funkcijo izvaja samostojna naprava. Namen tega je preprečiti podvajanje ali neskladnost zahtev s standardom, ki obravnava sklope, kadar se funkcija izvaja v okviru takega sklopa.

General Information

• Status: Published
• Publication Date: 09-Nov-2023
• ICS: 29.130.10 - High voltage switchgear and controlgear
• Technical Committee: CLC/TC 17AC - High-voltage switchgear and controlgear
• Drafting Committee: IEC/SC 17A - IEC_SC_17A
• Current Stage: 6060 - Document made available - Publishing
• Start Date: 10-Nov-2023
• Completion Date: 10-Nov-2023
• Ref Project: SIST EN IEC 62271-105:2024 - High-voltage switchgear and controlgear - Part 105: Alternating current switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV (IEC 62271-105:2021)

Relations

• Replaces: EN 62271-105:2012 - High-voltage switchgear and controlgear - Part 105: Alternating current switch-fuse combinations for rated voltages above 1 kV up to and including 52 kV
• Effective Date: 05-Jun-2018

Standards Content (Sample)

SLOVENSKI STANDARD
01-januar-2024
Visokonapetostne stikalne in krmilne naprave - 105. del: Kombinacije stikal za
izmenični tok z varovalkami za naznačene napetosti nad 1 kV do vključno 52 kV
(IEC 62271-105:2021)
High-voltage switchgear and controlgear - Part 105: Alternating current switch-fuse
combinations for rated voltages above 1 kV up to and including 52 kV (IEC 62271-
105:2021)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 105: Wechselstrom-
Lastschalter-Sicherungs-Kombinationen für Bemessungsspannungen über 1 kV bis
einschließlich 52 kV (IEC 62271-105:2021)
Appareillage à haute tension - Partie 105: Combinés interrupteurs-fusibles pour courant
alternatif de tensions assignées supérieures à 1 kV et jusqu'à 52 kV inclus (IEC 62271-
105:2021)
Ta slovenski standard je istoveten z: EN IEC 62271-105:2023
ICS:
29.130.10 Visokonapetostne stikalne in High voltage switchgear and
krmilne naprave controlgear
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EUROPEAN STANDARD EN IEC 62271-105

NORME EUROPÉENNE
EUROPÄISCHE NORM November 2023
ICS 29.130.10 Supersedes EN 62271-105:2012
English Version
High-voltage switchgear and controlgear - Part 105: Alternating
current switch-fuse combinations for rated voltages above 1 kV
up to and including 52 kV
(IEC 62271-105:2021)
Appareillage à haute tension - Partie 105: Combinés Hochspannungs-Schaltgeräte und -Schaltanlagen -
interrupteurs-fusibles pour courant alternatif de tensions Teil 105: Wechselstrom-Lastschalter-Sicherungs-
assignées supérieures à 1 kV et jusqu'à 52 kV inclus Kombinationen für Bemessungsspannungen über 1 kV bis
(IEC 62271-105:2021) einschließlich 52 kV
(IEC 62271-105:2021)
This European Standard was approved by CENELEC on 2021-07-20. 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,
Türkiye 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
© 2023 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62271-105:2023 E

European foreword
The text of document 17A/1300/FDIS, future edition 3 of IEC 62271-105, 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 62271-105:2023.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2024-05-10
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2026-11-10
document have to be withdrawn
This document supersedes EN 62271-105:2012 and 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.
Any feedback and questions on this document should be directed to the users’ national committee. A
complete listing of these bodies can be found on the CENELEC website.
Endorsement notice
The text of the International Standard IEC 62271-105:2021 was approved by CENELEC as a
European Standard without any modification. In the official version, for Bibliography, the following note
has to be added for the standard indicated:
IEC 62271-202 NOTE Harmonized as EN 62271-202
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.cencenelec.eu.
Clause 2 of EN 62271-1:2017 applies with the following additions:
Publication Year Title EN/HD Year
IEC 60050-441 - International Electrotechnical Vocabulary. - -
Switchgear, controlgear and fuses
IEC 60282-1 2020 High-voltage fuses - Part 1: Current- EN IEC 60282-1 2020
limiting fuses
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 2021 High-voltage switchgear and controlgear - EN IEC 62271-100 2021
Part 100: Alternating-current circuit-
breakers
IEC 62271-102 2018 High-voltage switchgear and controlgear - EN IEC 62271-102 2018
Part 102: Alternating current
disconnectors and earthing switches
IEC 62271-103 2021 High-voltage switchgear and controlgear - EN IEC 62271-103 2023
Part 103: Alternating current switches for
rated voltages above 1 kV up to and
including 52 kV
Annex ZB
(informative)
A-deviations
A-deviation: National deviation due to regulations, the alteration of which is for the time being outside
the competence of the CEN and/or CENELEC member.
This European Standard does not fall under any Directive/Regulation of the EU.
In the relevant CEN and/or CENELEC countries, these A-deviations are valid instead of the respective
provisions of the European Standard until the national situation causing the A-deviation has changed
Clause Deviation
General Italy
CAPITOLO VSR 8.B D.M. 1 DICEMBRE 1980 e succ. Modifiche
Disciplina dei contenitori a pressione di gas con membrature miste di materiale isolante
e di materiale metallico, contenenti parti attive di apparecchiature elettriche.
Gas filled compartments having a design pressure exceeding 0,5 bar (gauge) or a
volume exceeding 2 m shall be designed according to the Italian pressure vessel code
for electrical switchgear.
IEC 62271-105 ®
Edition 3.0 2021-06
INTERNATIONAL
STANDARD
NORME
INTERNATIONALE
High-voltage switchgear and controlgear –

Part 105: Alternating current switch-fuse combinations for rated voltages above

1 kV up to and including 52 kV

Appareillage à haute tension –

Partie 105: Combinés interrupteurs-fusibles pour courant alternatif de tensions

assignées supérieures à 1 kV et jusqu'à 52 kV inclus

INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
COMMISSION
ELECTROTECHNIQUE
INTERNATIONALE
ICS 29.130.10 ISBN 978-2-8322-9864-0

– 2 – IEC 62271-105:2021  IEC 2021
CONTENTS
FOREWORD . 5
1 Scope . 7
2 Normative references . 8
3 Terms and definitions . 8
3.1 General terms and definitions . 8
3.2 Assemblies of switchgear and controlgear . 8
3.3 Parts of assemblies . 8
3.4 Switching devices . 8
3.5 Parts of switchgear and controlgear . 9
3.6 Operational characteristics of switchgear and controlgear . 10
3.7 Characteristic quantities . 10
3.101 Fuses. 13
4 Normal and special service conditions . 14
5 Ratings . 14
5.1 General . 14
5.2 Rated voltage (U ) . 15
r
5.3 Rated insulation level (U , U , U ) . 15
d p s
5.4 Rated frequency (f ) . 15
r
5.5 Rated continuous current (I ) . 15
r
5.6 Rated short-time withstand current (I ) . 15
k
5.7 Rated peak withstand current (I ) . 15
p
5.8 Rated duration of short-circuit (t ) . 15
k
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 15
a
5.10 Rated supply frequency of auxiliary and control circuits . 15
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 15
5.101 Rated short-circuit breaking current . 16
5.102 Rated short-circuit making current . 16
5.103 Rated transfer current (striker operation) (I ) . 16
rtransfer
5.104 Rated take-over current for release-operated combinations (I ) . 16
rto
6 Design and construction . 16
6.1 Requirements for liquids in switch-fuse combinations . 16
6.2 Requirements for gases in switch-fuse combinations . 16
6.3 Earthing of switch-fuse combinations . 16
6.4 Auxiliary and control equipment and circuits . 17
6.5 Dependent power operation . 17
6.6 Stored energy operation . 17
6.7 Independent unlatched operation (independent manual or power operation) . 17
6.8 Manually operated actuators . 17
6.9 Operation of releases . 17
6.10 Pressure/level indication . 17
6.11 Nameplates. 17
6.12 Locking devices . 19
6.13 Position indication . 19
6.14 Degrees of protection provided by enclosures . 19

IEC 62271-105:2021  IEC 2021 – 3 –
6.15 Creepage distances for outdoor insulators . 19
6.16 Gas and vacuum tightness . 19
6.17 Tightness for liquid systems . 19
6.18 Fire hazard (flammability) . 19
6.19 Electromagnetic compatibility (EMC) .
...