SIST EN IEC 62271-200:2021
(Main)High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-200:2021)
High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-200:2021)
IEC 62271-200:2021(E) is applicable to prefabricated metal‑enclosed switchgear and controlgear assemblies designed for:
– alternating current;
– rated voltages above 1 kV and up to and including 52 kV;
– service frequencies up to and including 60 Hz;
– indoor and outdoor installation.
The assembly can include air-insulated and/or fluid-filled compartments.
This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous edition:
a) clause numbering aligned with IEC 62271‑1:2017, including the adoption of the subclause names of Clause 3;
b) in Clause 3 specific definitions are added for "in service", "normal operating condition" and "normal use";
c) internal arc testing on pole-mounted switchgear is taken out of this document, as it is now covered by the specific standard IEC 62271‑214:2019;
d) a more precise description of earthing circuit is given with the inclusion of ratings and test requirements;
e) number of mechanical tests on interlocks is reduced for type testing; a more precise description of forces to apply during type testing is given (refer to 7.102);
f) resistance measuring on main circuit is only needed before continuous current tests (as reference for routine tests) and no longer needed after this continuous current test. Rationale for this deletion is that this measured resistance does not mean anything; as the temperature rise test was just finished, a new temperature rise test will not give new information;
g) IEC 62271-100:2021, IEC 62271-103:2021, IEC 62271-105:2021 and IEC 62271-106:2021 are referred to in the document;
h) IEC 62271‑107:2019 and IEC IEEE 62271‑37‑013:2015 are also considered in 7.101.2;
i) a more precise description of LSC category is given with the inclusion of an explanatory flowchart (Annex D);
j) examples not covered by the IAC test are transferred from Clause 6 to 9.103;
k) the term "assembly" is defined in Clause 3 and used as synonym for "metal-enclosed switchgear and controlgear" in this document;
l) "metallic" is replaced by "metal" where applicable;
m) 6.105 is now covered by 7.7;
n) a 1 s rule was introduced for Criterion 4 during IAC tests regarding hot gases versus glowing particles as cause of ignition;
o) a more precise description of internal arc tests for switchgear with protrusions is given in Annex A.
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 200: Metallgekapselte Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1 kV bis einschließlich 52 kV (IEC 62271-200:2021)
Appareillage à haute tension - Partie 200: Appareillage sous enveloppe métallique pour courant alternatif de tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV (IEC 62271-200:2021)
L’IEC 62271-200:2021 est applicable aux ensembles d'appareillages préfabriqués sous enveloppe métallique conçus pour:
- le courant alternative;
- des tensions assignées supérieures à 1 kV et inférieures ou égales à 52 kV;
- des fréquences de service jusqu’à 60 Hz inclus;
- une installation à l'intérieur et à l'extérieur.
L’ensemble peut comprendre des compartiments isolés dans l’air et/ou remplis de fluide.
Cette troisième édition annule et remplace la deuxième édition publiée en 2011. Cette édition constitue une révision technique.
Cette édition inclut les modifications techniques majeures suivantes par rapport à l'édition précédente:
a) numérotation des articles alignée sur l’IEC 62271‑1:2017, y compris l'adoption des noms des paragraphes de l’Article 3;
b) des définitions spécifiques sont ajoutées à l'Article 3 pour "en service", "condition normale de fonctionnement" et "utilisation normale";
c) l'essai d'arc interne sur les appareillages montés sur poteau est exclu du présent document, car il est maintenant couvert par la norme spécifique IEC 62271‑214:2019;
d) une description plus exacte du circuit de terre est donnée avec l'inclusion des valeurs assignées et des exigences d'essai;
e) réduction du nombre d'essais mécaniques sur les verrouillages pour les essais de type; meilleure description des forces à appliquer lors des essais de type (voir 7.102);
f) le mesurage de la résistance sur le circuit principal n'est nécessaire qu'avant les essais au courant permanent (comme référence pour les essais individuels de série) et n'est plus nécessaire après cet essai au courant permanent. La raison de cette suppression est que cette résistance mesurée ne signifie rien; comme l'essai d’échauffement vient de se terminer, un nouvel essai d’échauffement n’apporterait pas de nouvelles informations;
g) l’IEC 62271-100:2021, l’IEC 62271-103:2021, l’IEC 62271-105:2021 et l’IEC 62271‑106:2021 sont citées dans le present document;
h) l’IEC 62271‑107:2012 et l’IEC 62271‑37‑013:2015 sont également prises en considération en 7.101.2;
i) une description plus précise de la catégorie LSC est donnée avec l'inclusion d'un ordinogramme explicatif (Annexe D);
j) les exemples non couverts par l’essai IAC sont transférés de l’Article 6 au paragraphe 9.103;
k) le terme "ensemble" est défini à l'Article 3 et est utilisé comme synonyme d'"appareillage sous enveloppe métallique" dans le présent document;
l) "métallique" est remplacé par "en métal" le cas échéant;
m) le paragraphe 6.105 est maintenant couvert par le paragraphe 7.7;
n) une règle de 1 s a été introduite pour le Critère No 4 lors des essais IAC concernant les gaz chauds par rapport aux particules incandescentes comme cause d'amorçage;
o) une description plus précise des essais d'arc interne pour les appareillages avec des protubérances est donnée à l’Annexe A.
La présente version bilingue (2021-07) correspond à la version anglaise monolingue publiée en 2021-05.
La version française de cette norme n'a pas été soumise au vote.
Visokonapetostne stikalne in krmilne naprave - 200. del: Stikalne in krmilne naprave v kovinskih ohišjih za naznačene izmenične napetosti nad 1 kV in do vključno 52 kV (IEC 62271-200:2021)
Ta del standarda IEC 62271 se uporablja za montažne sestave stikalnih in krmilnih naprav v kovinskih ohišjih, zasnovane za:
– izmenični tok;
– naznačene izmenične napetosti nad 1 kV in do vključno 52 kV;
– frekvence delovanja do vključno 60 Hz;
– notranjo in zunanjo namestitev.
Sestav lahko vključuje predelke, izolirane z zrakom in/ali napolnjene s tekočino.
Za komponente, nameščene v stikalnih in krmilnih napravah v kovinskih ohišjih, ta dokument dopolnjuje ali v nekaterih primerih celo nadomešča zahteve, določene v posameznih standardih za izdelke.
Seznam možnih komponent v stikalnih in krmilnih napravah v kovinskih ohišjih ni omejen na komponente, ki so izrecno navedene v tem dokumentu.
General Information
- Status
- Published In Translation
- Publication Date
- 22-Aug-2021
- Technical Committee
- SKA - Switchgear and control gear
- Current Stage
- 6100 - Translation of adopted SIST standards (Adopted Project)
- Start Date
- 21-Aug-2025
- Due Date
- 20-Aug-2026
Relations
- Effective Date
- 03-Aug-2021
- Effective Date
- 03-Aug-2021
- Effective Date
- 01-Oct-2024
Overview - EN IEC 62271-200:2021 (High-voltage switchgear)
EN IEC 62271-200:2021 is the international/european standard for AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV. It covers prefabricated metal-enclosed assemblies for alternating current, service frequencies up to 60 Hz, and both indoor and outdoor installation. Assemblies may include air‑insulated and/or fluid‑filled compartments. This third edition is a technical revision of the 2011 edition and is issued as EN IEC 62271-200:2021.
Key topics and technical requirements
- Scope and definitions: Clarified clause numbering and new definitions (e.g., “in service”, “normal operating condition”, “normal use”, and “assembly” as a synonym for metal-enclosed switchgear and controlgear).
- Ratings: Requirements for rated voltage, rated continuous current, short‑time and peak withstand currents, and rated durations of short‑circuit.
- Design and construction: Rules for metal enclosures, high‑voltage compartments, removable parts, earthing arrangements and protective measures.
- Internal arc (IAC) classification and testing: Detailed IAC requirements, LSC category description and an explanatory flowchart (Annex D). Note: internal arc testing on pole‑mounted switchgear is now covered by IEC 62271‑214:2019.
- Type tests and routine tests: Dielectric, continuous current, short‑time and peak withstand current tests, mechanical operation tests and internal arc tests. The edition changes include reduced mechanical interlock tests for type testing and revised resistance measurement requirements (resistance measurement now required before continuous current tests only).
- Protection and safety: Verification of earthing circuits (new precision in ratings and test requirements), person protection against dangerous electrical effects, and a 1 s rule for Criterion 4 in IAC tests regarding hot gases vs glowing particles.
- Additional updates: References to related IEC parts (e.g., IEC 62271‑1, ‑100, ‑103, ‑105, ‑106, ‑107) and clarifications for switchgear with protrusions (Annex A).
Applications and who uses this standard
- Manufacturers of high‑voltage metal‑enclosed switchgear and controlgear (design, testing and type approval).
- Design engineers and OEMs specifying assemblies for substations, industrial plants, renewable energy and utility distribution networks.
- Test laboratories and certification bodies performing type and routine testing (IAC, dielectric, short‑circuit, mechanical).
- Asset owners and integrators ensuring compliance for indoor/outdoor HV switchgear rated 1–52 kV.
Keywords: EN IEC 62271-200:2021, high-voltage switchgear, metal-enclosed switchgear, controlgear, internal arc classification, IAC, type tests, earthing, 1 kV to 52 kV.
Related standards
- IEC/EN 62271‑1 (Common specifications)
- IEC/EN 62271‑100, ‑102, ‑103, ‑105, ‑106, ‑107, ‑214
- IEC 62271‑201, ‑213, ‑215; IEEE 62271‑37‑013
For regulatory or procurement use, consult the full EN IEC 62271-200:2021 text and referenced parts for complete test procedures and numerical limits.
Frequently Asked Questions
SIST EN IEC 62271-200:2021 is a standard published by the Slovenian Institute for Standardization (SIST). Its full title is "High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-200:2021)". This standard covers: IEC 62271-200:2021(E) is applicable to prefabricated metal‑enclosed switchgear and controlgear assemblies designed for: – alternating current; – rated voltages above 1 kV and up to and including 52 kV; – service frequencies up to and including 60 Hz; – indoor and outdoor installation. The assembly can include air-insulated and/or fluid-filled compartments. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) clause numbering aligned with IEC 62271‑1:2017, including the adoption of the subclause names of Clause 3; b) in Clause 3 specific definitions are added for "in service", "normal operating condition" and "normal use"; c) internal arc testing on pole-mounted switchgear is taken out of this document, as it is now covered by the specific standard IEC 62271‑214:2019; d) a more precise description of earthing circuit is given with the inclusion of ratings and test requirements; e) number of mechanical tests on interlocks is reduced for type testing; a more precise description of forces to apply during type testing is given (refer to 7.102); f) resistance measuring on main circuit is only needed before continuous current tests (as reference for routine tests) and no longer needed after this continuous current test. Rationale for this deletion is that this measured resistance does not mean anything; as the temperature rise test was just finished, a new temperature rise test will not give new information; g) IEC 62271-100:2021, IEC 62271-103:2021, IEC 62271-105:2021 and IEC 62271-106:2021 are referred to in the document; h) IEC 62271‑107:2019 and IEC IEEE 62271‑37‑013:2015 are also considered in 7.101.2; i) a more precise description of LSC category is given with the inclusion of an explanatory flowchart (Annex D); j) examples not covered by the IAC test are transferred from Clause 6 to 9.103; k) the term "assembly" is defined in Clause 3 and used as synonym for "metal-enclosed switchgear and controlgear" in this document; l) "metallic" is replaced by "metal" where applicable; m) 6.105 is now covered by 7.7; n) a 1 s rule was introduced for Criterion 4 during IAC tests regarding hot gases versus glowing particles as cause of ignition; o) a more precise description of internal arc tests for switchgear with protrusions is given in Annex A.
IEC 62271-200:2021(E) is applicable to prefabricated metal‑enclosed switchgear and controlgear assemblies designed for: – alternating current; – rated voltages above 1 kV and up to and including 52 kV; – service frequencies up to and including 60 Hz; – indoor and outdoor installation. The assembly can include air-insulated and/or fluid-filled compartments. This third edition cancels and replaces the second edition published in 2011. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) clause numbering aligned with IEC 62271‑1:2017, including the adoption of the subclause names of Clause 3; b) in Clause 3 specific definitions are added for "in service", "normal operating condition" and "normal use"; c) internal arc testing on pole-mounted switchgear is taken out of this document, as it is now covered by the specific standard IEC 62271‑214:2019; d) a more precise description of earthing circuit is given with the inclusion of ratings and test requirements; e) number of mechanical tests on interlocks is reduced for type testing; a more precise description of forces to apply during type testing is given (refer to 7.102); f) resistance measuring on main circuit is only needed before continuous current tests (as reference for routine tests) and no longer needed after this continuous current test. Rationale for this deletion is that this measured resistance does not mean anything; as the temperature rise test was just finished, a new temperature rise test will not give new information; g) IEC 62271-100:2021, IEC 62271-103:2021, IEC 62271-105:2021 and IEC 62271-106:2021 are referred to in the document; h) IEC 62271‑107:2019 and IEC IEEE 62271‑37‑013:2015 are also considered in 7.101.2; i) a more precise description of LSC category is given with the inclusion of an explanatory flowchart (Annex D); j) examples not covered by the IAC test are transferred from Clause 6 to 9.103; k) the term "assembly" is defined in Clause 3 and used as synonym for "metal-enclosed switchgear and controlgear" in this document; l) "metallic" is replaced by "metal" where applicable; m) 6.105 is now covered by 7.7; n) a 1 s rule was introduced for Criterion 4 during IAC tests regarding hot gases versus glowing particles as cause of ignition; o) a more precise description of internal arc tests for switchgear with protrusions is given in Annex A.
SIST EN IEC 62271-200:2021 is classified under the following ICS (International Classification for Standards) categories: 29.130.10 - High voltage switchgear and controlgear. The ICS classification helps identify the subject area and facilitates finding related standards.
SIST EN IEC 62271-200:2021 has the following relationships with other standards: It is inter standard links to SIST EN 62271-200:2012/AC:2015, SIST EN 62271-200:2012, SIST EN IEC 62271-200:2021/A1:2024. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
You can purchase SIST EN IEC 62271-200:2021 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of SIST standards.
Standards Content (Sample)
SLOVENSKI STANDARD
01-september-2021
Nadomešča:
SIST EN 62271-200:2012
SIST EN 62271-200:2012/AC:2015
Visokonapetostne stikalne in krmilne naprave - 200. del: Stikalne in krmilne
naprave v kovinskih ohišjih za naznačene izmenične napetosti nad 1 kV in do
vključno 52 kV (IEC 62271-200:2021)
High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and
controlgear for rated voltages above 1 kV and up to and including 52 kV (IEC 62271-
200:2021)
Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil 200: Metallgekapselte
Wechselstrom-Schaltanlagen für Bemessungsspannungen über 1 kV bis einschließlich
52 kV (IEC 62271-200:2021)
Appareillage à haute tension - Partie 200: Appareillage sous enveloppe métallique pour
courant alternatif de tensions assignées supérieures à 1 kV et inférieures ou égales à 52
kV (IEC 62271-200:2021)
Ta slovenski standard je istoveten z: EN IEC 62271-200:2021
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 62271-200
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2021
ICS 29.130.10 Supersedes EN 62271-200:2012 and all of its
amendments and corrigenda (if any)
English Version
High-voltage switchgear and controlgear - Part 200: AC metal-
enclosed switchgear and controlgear for rated voltages above 1
kV and up to and including 52 kV
(IEC 62271-200:2021)
Appareillage à haute tension - Partie 200: Appareillage Hochspannungs-Schaltgeräte und -Schaltanlagen - Teil
sous enveloppe métallique pour courant alternatif de 200: Metallgekapselte Wechselstrom-Schaltanlagen für
tensions assignées supérieures à 1 kV et inférieures ou Bemessungsspannungen über 1 kV bis einschließlich 52 kV
égales à 52 kV (IEC 62271-200:2021)
(IEC 62271-200:2021)
This European Standard was approved by CENELEC on 2021-07-01. 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
© 2021 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members.
Ref. No. EN IEC 62271-200:2021 E
European foreword
The text of document 17C/782/FDIS, future edition 3 of IEC 62271-200, prepared by SC 17C
“Assemblies” of IEC/TC 17 “High-voltage switchgear and controlgear” was submitted to the IEC-
CENELEC parallel vote and approved by CENELEC as EN IEC 62271-200:2021.
The following dates are fixed:
• latest date by which the document has to be implemented at national (dop) 2022–04–01
level by publication of an identical national standard or by endorsement
• latest date by which the national standards conflicting with the (dow) 2024–07–01
document have to be withdrawn
This document supersedes EN 62271-200:2012 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 62271-200:2021 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 62271-214:2019 NOTE Harmonized as EN IEC 62271-214:2019 (not modified)
IEC 60059:1999 NOTE Harmonized as EN 60059:1999 (not modified)
IEC 60243-1:2013 NOTE Harmonized as EN 60243-1:2013 (not modified)
IEC/TR 62271-307:2015 NOTE Harmonized as CLC IEC/TR 62271-307:2019 (not modified)
IEC 60909-0:2016 NOTE Harmonized as EN 60909-0:2016 (not modified)
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 60050-151 - International Electrotechnical Vocabulary - - -
Part 151: Electrical and magnetic devices
IEC 60050-441 - International Electrotechnical Vocabulary. - -
Switchgear, controlgear and fuses
IEC 60060-1 2010 High-voltage test techniques - Part 1: EN 60060-1 2010
General definitions and test requirements
IEC 60270 2000 High-voltage test techniques - Partial EN 60270 2001
discharge measurements
+ A1 2015 + A1 2016
IEC 60529 1989 Degrees of protection provided by EN 60529 1991
enclosures (IP Code)
- - + corrigendum May 1993
+ A1 1999 + A1 2000
+ A2 2013 + A2 2013
IEC 62262 2002 Degrees of protection provided by EN 62262 2002
enclosures for electrical equipment against
external mechanical impacts (IK code)
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 - - -
Part 103: Switches for rated voltages
above 1 kV up to and including 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 62271-106 2021 High-voltage switchgear and controlgear - EN IEC 62271-106 2021
Part 106: Alternating current contactors,
contactor-based controllers and motor-
starters
IEC 62271-107 2019 High-voltage switchgear and controlgear - EN IEC 62271-107 2019
Part 107: Alternating current fused circuit-
switchers for rated voltages above 1 kV up
to and including 52 kV
IEC 62271-201 2014 High-voltage switchgear and controlgear - EN 62271-201 2014
Part 201: AC solid-insulation enclosed
switchgear and controlgear for rated
voltages above 1 kV and up to and
including 52 kV
IEC 62271-203 2011 High-voltage switchgear and controlgear - EN 62271-203 2012
Part 203: Gas-insulated metal-enclosed
switchgear for rated voltages above 52 kV
IEC 62271-213 2021 High-voltage switchgear and controlgear - EN IEC 62271-213 2021
Part 213: Voltage detecting and indicating
system
IEC 62271-215 2021 High-voltage switchgear and controlgear - EN IEC 62271-215 2021
Part 215: Phase comparator used with
VDIS
IEC 2015 High-voltage switchgear and controlgear -
IEEE 62271-37-013 Part 37–013: Alternating-current generator
circuit-breakers
IEC 62271-200 ®
Edition 3.0 2021-05
INTERNATIONAL
STANDARD
colour
inside
High-voltage switchgear and controlgear –
Part 200: AC metal-enclosed switchgear and controlgear for rated voltages
above 1 kV and up to and including 52 kV
INTERNATIONAL
ELECTROTECHNICAL
COMMISSION
ICS 29.130.10 ISBN 978-2-8322-9793-3
– 2 – IEC 62271-200:2021 IEC 2021
CONTENTS
FOREWORD . 6
INTRODUCTION . 9
1 Scope . 10
2 Normative references . 10
3 Terms and definitions . 11
3.1 General terms and definitions . 11
3.2 Assemblies of switchgear and controlgear . 13
3.3 Parts of assemblies . 13
3.4 Switching devices . 13
3.5 Parts of switchgear and controlgear . 13
3.6 Operational characteristics of switchgear and controlgear . 16
3.7 Characteristic quantities . 18
3.8 Index of definitions . 19
4 Normal and special service conditions . 20
5 Ratings . 21
5.1 General . 21
5.2 Rated voltage (U ) . 21
r
5.3 Rated insulation level (U , U , U ) . 21
d p s
5.4 Rated frequency (f ) . 21
r
5.5 Rated continuous current (I ) . 21
r
5.6 Rated short-time withstand currents (I , I ) . 21
k ke
5.7 Rated peak withstand currents (I , I ) . 22
p pe
5.8 Rated durations of short-circuit (t , t ) . 22
k ke
5.9 Rated supply voltage of auxiliary and control circuits (U ) . 23
a
5.10 Rated supply frequency of auxiliary and control circuits . 23
5.11 Rated pressure of compressed gas supply for controlled pressure systems . 23
5.101 Classification of earthing function through main switching device . 23
5.102 Rated cable test voltages (U , U ) . 23
ct (AC) ct (DC)
5.103 Ratings of the internal arc classification (IAC) . 23
6 Design and construction . 25
6.1 Requirements for liquids in switchgear and controlgear . 25
6.2 Requirements for gases in switchgear and controlgear . 25
6.3 Earthing of switchgear and controlgear . 25
6.4 Auxiliary and control equipment and circuits . 26
6.5 Dependent power operation . 26
6.6 Stored energy operation. 26
6.7 Independent unlatched operation (independent manual or power operation) . 26
6.8 Manually operated actuators . 26
6.9 Operation of releases. 26
6.10 Pressure/level indication . 27
6.11 Nameplates . 27
6.12 Locking devices . 28
6.13 Position indication . 29
IEC 62271-200:2021 IEC 2021 – 3 –
6.14 Degrees of protection provided by enclosures . 29
6.15 Creepage distances for outdoor insulators . 30
6.16 Gas and vacuum tightness . 30
6.17 Tightness for liquid systems . 30
6.18 Fire hazard (flammability) . 30
6.19 Electromagnetic compatibility (EMC) . 30
6.20 X-ray emission . 30
6.21 Corrosion . 30
6.22 Filling levels for insulation, switching and/or operation . 30
6.101 General requirements for assemblies . 31
6.102 Metal enclosure . 31
6.103 High-voltage compartments . 33
6.104 Removable parts . 37
6.105 Provisions for dielectric tests on cables . 37
6.106 Internal arc fault . 38
7 Type tests . 38
7.1 General . 38
7.2 Dielectric tests . 39
7.3 Radio interference voltage (RIV) test . 43
7.4 Resistance measurement . 43
7.5 Continuous current tests . 43
7.6 Short-time withstand current and peak withstand current tests . 45
7.7 Verification of the protection . 47
7.8 Tightness tests . 47
7.9 Electromagnetic compatibility tests (EMC) . 48
7.10 Additional tests on auxiliary and control circuits . 48
7.11 X-radiation test for vacuum interrupters . 48
7.101 Verification of making and breaking capacities . 48
7.102 Mechanical operation tests . 50
7.103 Pressure withstand test for gas-filled compartments . 51
7.104 Tests to verify the protection of persons against dangerous electrical effects . 52
7.105 Internal arc test . 53
8 Routine tests . 57
8.1 General . 57
8.2 Dielectric test on the main circuit . 57
8.3 Tests on auxiliary and control circuits . 57
8.4 Measurement of the resistance of the main circuit . 58
8.5 Tightness test . 58
8.6 Design and visual checks . 58
8.101 Partial discharge measurement . 58
8.102 Mechanical operation tests . 58
8.103 Pressure tests of gas-filled compartments . 59
8.104 Tests after erection on site. 59
8.105 Measurement of fluid condition after filling on site . 59
9 Guide to the selection of switchgear and controlgear (informative) . 59
9.1 General . 59
9.2 Selection of rated values . 60
9.3 Cable-interface considerations . 60
– 4 – IEC 62271-200:2021 IEC 2021
9.4 Continuous or temporary overload due to changed service conditions . 60
9.5 Environmental aspects . 60
9.101 Selection of design and construction . 60
9.102 Ratings related to earthing circuits . 64
9.103 Internal arc fault . 65
9.104 Summary of technical requirements, ratings and optional tests . 71
10 Information to be given with enquiries, tenders and orders (informative) . 73
10.1 General . 73
10.2 Information with enquiries and orders . 73
10.3 Information with tenders . 74
11 Transport, storage, installation, operating instructions and maintenance . 75
11.1 General . 75
11.2 Conditions during transport, storage and installation . 75
11.3 Installation . 75
11.4 Operating instructions . 75
11.5 Maintenance . 76
12 Safety . 76
12.101 Procedures . 76
12.102 Internal arc aspects . 76
13 Influence of the product on the environment . 77
Annex A (normative) Internal arc fault – Method to verify the internal arc classification
(IAC) . 78
A.1 Room simulation . 78
A.2 Indicators (for assessing the thermal effects of the gases) . 80
A.3 Tolerances for geometrical dimensions of test arrangements . 82
A.4 Test parameters . 82
A.5 Test procedure. 83
Annex B (normative) Partial discharge measurement . 95
B.1 General . 95
B.2 Application . 95
B.3 Test circuits and measuring instruments . 95
B.4 Test procedure. 96
B.5 Maximum permissible partial discharge quantity . 97
Annex C (informative) List of notes concerning certain countries . 101
Annex D (normative) Flowchart categorization procedure for LSC for a given
functional unit FU1 with connection compartment . 102
Bibliography . 103
Figure 1 – LSC1. 63
Figure 2 – LSC2. 63
Figure 3 – LSC2. 63
Figure 4 – LSC2. 64
Figure 5 – LSC2A . 64
Figure 6 – LSC2B . 64
Figure 7 – LSC2B . 64
Figure 8 – LSC1. 64
IEC 62271-200:2021 IEC 2021 – 5 –
Figure 9 – No LSC assigned . 64
Figure A.1 – Mounting frame for vertical indicators . 86
Figure A.2 – Horizontal indicator . 86
Figure A.3 – Position of the indicators. 87
Figure A.4 – Room simulation and indicator positioning for accessibility type A,
classified rear side, ceiling above 2 000 mm, functional unit of any height . 88
Figure A.5 – Room simulation and indicator positioning for accessibility type A,
non-accessible rear side, ceiling at 2 000 mm, so functional unit ≤ 1 800 mm high. 89
Figure A.6 – Room simulation and indicator positioning for accessibility type B,
classified rear side, functional unit ≥ 1 900 mm high . 90
Figure A.7 – Room simulation and indicator positioning for accessibility type B,
classified rear side, functional unit < 1 900 mm high . 91
Figure A.8 – Ceiling height stated from the floor or false floor level where the assembly
is actually placed . 92
Figure A.9 – Indicator positioning in case of protrusion at < 2 000 mm height, at
classified side . 93
Figure A.10 – Indicator positioning in case a bottom exhaust duct belonging to the
assembly is defined as a walkable integrated part of the false floor . 94
Figure B.1 – Partial discharge test circuit (three-phase arrangement) . 99
Figure B.2 – Partial-discharge test circuit (system without earthed neutral) . 100
Figure D.1 – Flowchart categorization procedure for LSC for a given functional unit
FU1 with connection compartment . 102
Table 1 – Nameplate information . 27
Table 2 – Locations, causes and examples of measures to decrease the probability of
internal arc faults . 67
Table 3 – Single-phase-to-earth arc fault current depending on the network neutral
earthing . 69
Table 4 – Summary of technical requirements, ratings and optional tests for
assemblies . 71
Table A.1 – Parameters for internal arc test according to compartment construction . 85
Table B.1 – Test circuits and procedures . 98
– 6 – IEC 62271-200:2021 IEC 2021
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 200: AC metal-enclosed switchgear and controlgear
for rated voltages above 1 kV and up to and including 52 kV
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.
IEC 62271-200 has been prepared by subcommittee 17C: Assemblies, of IEC technical
committee 17: High-voltage switchgear and controlgear. It is an International Standard.
This third edition cancels and replaces the second edition published in 2011. This edition
constitutes a technical revision.
This edition includes the following significant technical changes with respect to the previous
edition:
a) clause numbering aligned with IEC 62271-1:2017, including the adoption of the subclause
names of Clause 3;
b) in Clause 3 specific definitions are added for "in service", "normal operating condition" and
"normal use";
c) internal arc testing on pole-mounted switchgear is taken out of this document, as it is now
covered by the specific standard IEC 62271-214:2019;
IEC 62271-200:2021 IEC 2021 – 7 –
d) a more precise description of earthing circuit is given with the inclusion of ratings and test
requirements;
e) number of mechanical tests on interlocks is reduced for type testing; a more precise
description of forces to apply during type testing is given (refer to 7.102);
f) resistance measuring on main circuit is only needed before continuous current tests (as
reference for routine tests) and no longer needed after this continuous current test.
Rationale for this deletion is that this measured resistance does not mean anything; as the
temperature rise test was just finished, a new temperature rise test will not give new
information;
g) IEC 62271-100:2021, IEC 62271-103:2021, IEC 62271-105:2021 and IEC 62271-
106:2021 are referred to in the document;
h) IEC 62271-107:2019 and IEC IEEE 62271-37-013:2015 are also considered in 7.101.2;
i) a more precise description of LSC category is given with the inclusion of an explanatory
flowchart (Annex D);
j) examples not covered by the IAC test are transferred from Clause 6 to 9.103;
k) the term "assembly" is defined in Clause 3 and used as synonym for "metal-enclosed
switchgear and controlgear" in this document;
l) "metallic" is replaced by "metal" where applicable;
m) 6.105 is now covered by 7.7;
n) a 1 s rule was introduced for Criterion 4 during IAC tests regarding hot gases versus glowing
particles as cause of ignition;
o) a more precise description of internal arc tests for switchgear with protrusions is given in
Annex A.
The text of this International Standard is based on the following documents:
FDIS Report on voting
17C/782/FDIS 17C/792/RVD
Full information on the voting for its approval can be found in the report on voting indicated in
the above table.
The language used for the development of this International Standard is English.
This document was drafted in accordance with ISO/IEC Directives, Part 2, and developed in
accordance with ISO/IEC Directives, Part 1 and ISO/IEC Directives, IEC Supplement, available
at www.iec.ch/members_experts/refdocs. The main document types developed by IEC are
described in greater detail at www.iec.ch/standardsdev/publications.
This document should be read in conjunction with IEC 62271-1:2017, to which it refers and
which is applicable unless otherwise specified. In order to simplify the indication of
corresponding requirements, the same numbering of clauses and subclauses is used as in
IEC 62271-1:2017. Amendments to these clauses and subclauses are given under the same
numbering, whilst additional subclauses, are numbered from 101.
The reader's attention is drawn to the fact that Annex C lists all of the "in-some-country" clauses
on differing practices of a less permanent nature relating to the subject of this document.
A list of all parts in the IEC 62271 series, published under the general title High-voltage
switchgear and controlgear, can be found on the IEC website.
– 8 – IEC 62271-200:2021 IEC 2021
The committee has decided that the contents of this document will remain unchanged until the
stability date indicated on the IEC website under webstore.iec.ch in the data related to the
specific document. At this date, the document will be
• reconfirmed,
• withdrawn,
• replaced by a revised edition, or
• amended.
IMPORTANT – The "colour inside" logo on the cover page of this document indicates that it
contains colours which are considered to be useful for the correct understanding of its
contents. Users should therefore print this document using a colour printer.
IEC 62271-200:2021 IEC 2021 – 9 –
INTRODUCTION
High-voltage (IEC 60050-601:1985, 601-01-27) switchgear refers to rated voltages above 1 kV.
However, medium-voltage is commonly used for distribution systems with rated voltages above
1 kV and generally applied up to and including 52 kV; refer to IEC 60050-601:1985, 601-01-28
[1] .
Although primarily dedicated to three-phase systems, this document can also be applied to
single-phase and two-phase systems.
Switchgear and controlgear assemblies having a solid-insulation enclosure are covered by
IEC 62271-201.
____________
Numbers in square brackets refer to the Bibliography.
– 10 – IEC 62271-200:2021 IEC 2021
HIGH-VOLTAGE SWITCHGEAR AND CONTROLGEAR –
Part 200: AC metal-enclosed switchgear and controlgear
for rated voltages above 1 kV and up to and including 52 kV
1 Scope
This part of IEC 62271 is applicable to prefabricated metal-enclosed switchgear and controlgear
assemblies designed for:
– alternating current;
– rated voltages above 1 kV and up to and including 52 kV;
– service frequencies up to and including 60 Hz;
– indoor and outdoor installation.
The assembly can include air-insulated and/or fluid-filled compartments.
For components installed in a metal-enclosed switchgear and controlgear, this document
supplements or even replaces in some cases, the requirements as stated by the individual
product standards.
The list of components which can be inside the metal-enclosed switchgear and controlgear is
not limited to the ones explicitly cited in this document.
2 Normative references
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.
IEC 60050-151, International Electrotechnical Vocabulary (IEV) – Part 151: Electrical and
magnetic devices (available at http://www.electropedia.org)
IEC 60050-441, International Electrotechnical Vocabulary (IEV) – Part 441: Switchgear,
controlgear and fuses (available at http://www.electropedia.org)
IEC 60060-1:2010, High-voltage test techniques – Part 1: General definitions and test
requirements
IEC 60270:2000, High-voltage test techniques – Partial discharge measurements
IEC 60270:2000/AMD1:2015
IEC 60529:1989, Degrees of protection provided by enclosures (IP Code)
IEC 60529:1989/AMD1:1999
IEC 60529:1989/AMD2:2013
IEC 62262:2002, Degrees of protection provided by enclosures for electrical equipment against
external mechanical impacts (IK code)
IEC 62271-1:2017, High-voltage switchgear and controlgear – Part 1: Common specifications
for alternating current switchgear and controlgear
IEC 62271-200:2021 IEC 2021 – 11 –
IEC 62271-100:2021, High-voltage switchgear and controlgear – Part 100: Alternating-current
circuit-breakers
IEC 62271-102:2018, High-voltage switchgear and controlgear – Part 102: Alternating current
disconnectors and earthing switches
IEC 62271-103:2021, High-voltage switchgear and controlgear – Part 103: Switches for rated
voltages above 1 kV up to and including 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 62271-106:2021, High-voltage switchgear and controlgear – Part 106: Alternating current
contactors, contactor-based controllers and motor-starters
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 62271-201:2014, High-voltage switchgear and controlgear – Part 201: AC solid-insulation
enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including
52 kV
IEC 62271-203:2011, High-voltage switchgear and controlgear – Part 203: Gas-insulated
metal-enclosed switchgear for rated voltages above 52 kV
IEC 62271-213:2021, High-voltage switchgear and controlgear – Part 213: Voltage detecting
and indicating system
IEC 62271-215:2021, High-voltage switchgear and controlgear – Part 215: Phase comparator
used with VDIS
IEC IEEE 62271-37-013:2015, High-voltage switchgear and controlgear – Part 37-013:
Alternating-current generator circuit-breakers
3 Terms and definitions
For the purposes of this document, the terms and definitions given in IEC 62271-1, IEC 60050-151
and IEC 60050-441, and the following apply.
NOTE The classification system for definitions of IEC 62271-1:2017 is followed. Terms and definitions are
referenced and prioritized in the following order:
– Clause 3 of this document;
– IEC 62271-1:2017;
– IEC 60050-441;
– IEC 60050-151.
ISO and IEC maintain terminological databases for use in standardization at the following
addresses:
• IEC Electropedia: available at http://www.electropedia.org/
• ISO Online browsing platform: available at http://www.iso.org/obp
3.1 General terms and definitions
The definitions in 3.1 of IEC 62271-1:2017 are applicable, with the following additions and/or
modifications:
– 12 – IEC 62271-200:2021 IEC 2021
3.1.101
ambient air temperature
temperature, determined under specified conditions, of the air surrounding
the enclosure of an assembly
[SOURCE: IEC 60050-441:1984, 441-11-13, modified – "prescribed" has been replaced by
"specified", "complete switching device or fuse" by "enclosure of an assembly" and the note has
been removed.]
3.1.102
disruptive discharge
phenomenon associated with the failure of insulation under electric stress, in which the
discharge completely bridges the insulation under test, reducing the voltage between the
electrodes to zero or nearly to zero
Note 1 to entry: The term is applicable to discharges in solid, liquid and gaseous dielectrics and to combinations of
these.
Note 2 to entry: A disruptive discharge in a solid dielectric produces permanent loss of dielectric strength (non-
self-restoring insulation); in a liquid or gaseous dielectric, the loss can be only temporary (self-restoring insulation).
Note 3 to entry: The term "sparkover" is used when a disruptive discharge occurs in a gaseous or liquid dielectric.
The term "flashover" is used when a disruptive discharge occurs over the surface of a solid dielectric in gaseous or
liquid medium. The te
...
The standard SIST EN IEC 62271-200:2021 provides a comprehensive framework for high-voltage switchgear and controlgear systems, specifically designed for prefabricated metal-enclosed assemblies operating at rated voltages exceeding 1 kV and up to 52 kV. Covering both indoor and outdoor installation applications, this standard is essential for ensuring operational safety and performance in electrical systems. One of the notable strengths of this standard is its alignment with the broader IEC 62271 series, particularly its synchronization with IEC 62271-1:2017. This alignment facilitates a more streamlined approach to understanding and implementing the requirements laid out in the standard, thereby improving overall consistency in high-voltage applications. The standard incorporates significant technical revisions from the previous edition published in 2011. Key updates include the introduction of specific definitions such as "in service" and "normal operating condition," which clarify the contexts in which switchgear operates, thus ensuring users have a comprehensive understanding of operational environments. Furthermore, the exclusion of internal arc testing for pole-mounted switchgear, now addressed by IEC 62271-214:2019, showcases a targeted approach that enhances clarity and reduces redundancy in testing protocols. These revisions reflect a commitment to modernizing the standard in line with technological advancements and operational efficiencies. Among the improvements, the more detailed description of earthing circuits and the reduction of mechanical tests for interlocks contribute to more precise and relevant testing criteria. The updates in routine test requirements for resistance measurements underscore a pragmatic approach to testing processes, as they take into account the actual conditions following continuous current tests. Moreover, the standard provides enhanced guidance through flowcharts, which elucidate the LSC categories, ensuring that users can easily navigate the complexities of industrial applications. The thoroughness of revisions, including a one-second rule for internal arc tests concerning ignition causes, signifies the standard's commitment to safety and reliability in high-voltage environments. Overall, the SIST EN IEC 62271-200:2021 standard not only strengthens the regulatory framework surrounding high-voltage switchgear and controlgear but also reinforces its relevance in contemporary electrical engineering practices. Its meticulous updates and comprehensive guidelines position it as a critical resource for manufacturers, engineers, and safety professionals operating in the high-voltage sector.
La norme SIST EN IEC 62271-200:2021 s'avère être un document fondamental pour les équipements de commutation et de contrôle à haute tension, spécifiquement ceux qui sont enclos dans des métaux et destinés à des tensions nominales supérieures à 1 kV et jusqu'à 52 kV. Son domaine d'application couvre les assemblages conçus pour le courant alternatif, les fréquences de service jusqu'à 60 Hz, ainsi que les installations intérieures et extérieures, offrant ainsi une grande polyvalence. Les atouts majeurs de cette norme résident dans son actualisation technique par rapport à l'édition précédente de 2011, introduisant des changements significatifs qui renforcent la clarté et la pertinence du document. Par exemple, l'alignement de la numérotation des clauses avec la norme IEC 62271-1:2017 facilite la navigation et la compréhension pour les professionnels utilisant ces normes. De plus, l'ajout de définitions spécifiques dans la Clause 3 pour des termes clés tels que "en service" et "condition de fonctionnement normal" apporte une précision nécessaire qui améliore l'interprétation et l'application de la norme. Un autre point fort est la mise à jour concernant les exigences de test, telle que l'élimination des tests d'arc interne sur les appareillages montés sur poteaux, qui est désormais couvert par la norme spécifique IEC 62271-214:2019. Cela montre une rationalisation et une spécialisation des documents, garantissant que chaque norme couvre ses thématiques sans redondance, tout en optimisant le processus de certification. L'inclusion de descriptions plus précises relatives au circuit de mise à la terre, ainsi que la révision des tests mécaniques sur les dispositifs de verrouillage, soulignent un souci de sécurité et d'utilité dans l'usage des équipements de haute tension. Le changement concernant la méthodologie de mesure de résistance sur le circuit principal, se basant désormais uniquement sur les tests de courant continu, témoigne d'une approche pragmatique pour éliminer les redondances dans les tests. La norme fait également référence à d'autres documents pertinents comme IEC 62271-100:2021 et IEC 62271-106:2021, ce qui démontre son intégration dans un cadre normatif plus large et sa pertinence dans le paysage réglementaire actuel. L'ajout de documents annexes, comme celui précisant les catégories LSC avec un organigramme explicatif, enrichit également la norme en offrant des outils visuels aidants pour les utilisateurs. En résumé, la norme SIST EN IEC 62271-200:2021 représente un pas en avant significatif dans la standardisation des équipements de haute tension, alliant précision technique et clarté, tout en s'assurant de sa conformité aux exigences modernes de sécurité et de performance.
SIST EN IEC 62271-200:2021 표준은 고전압 스위치기어 및 제어장치에 대한 포괄적인 지침을 제공하는 중요한 문서입니다. 이 표준의 범위는 1 kV 이상 52 kV 이하의 교류 전압에 적용되며, 실내와 실외 설치 모두 고려됩니다. 표준 내의 특정 정의가 추가되어 "in service", "normal operating condition", "normal use"와 같은 조건을 명확하게 규정하고 있습니다. 이 표준의 강점 중 하나는 기술적 개정이 이루어진 점입니다. 예를 들어, 구조적 변경으로 인해 Clause numbering이 IEC 62271-1:2017에 맞춰 조정되었으며, 이는 일관성과 체계성을 강화합니다. 또한, 내부 아크 시험이 특정 표준 IEC 62271-214:2019로 이전되어 이 문서에서는 더 이상 다루지 않게 되었으며, 이는 전문성과 명확성을 증가시킵니다. 또한, 접지 회로에 대한 보다 정밀한 설명과 등급 및 시험 요구 사항이 포함되어 있어, 고전압 스위치기어의 안전성을 더욱 높이고 있습니다. 기계적 테스트에 대한 요구사항이 축소되고, 타입 테스트 중 적용해야 하는 힘에 대한 구체적인 설명이 제공되어, 효율적인 시험 절차를 가능하게 합니다. 거의 모든 측면에서의 재정비는 이 표준을 현대화하고, 최신 기술 발전에 부합하게 만듭니다. 특히, IAC 시험과 관련된 1초 규칙을 도입하여 Hot gases와 glowing particles에 의한 점화를 구분하는 것이 추가되어 안전성을 더욱 강화하였습니다. 결론적으로, SIST EN IEC 62271-200:2021은 고전압 스위치기어 및 제어장치의 설계, 테스트 및 안전성 기준을 타인의 표준과 일관성 있게 통합하여 현행 산업 규범에 맞춘 신뢰할 수 있는 지침들을 제공합니다. 이는 모든 관련 산업 및 설치업체들에게 필수적인 표준이라 할 수 있습니다.
SIST EN IEC 62271-200:2021は、定格電圧が1 kVを超え52 kV以下の交流金属エンクロージャスイッチギアおよび制御機器に関する国際規格であり、その適用範囲は広範です。この規格は、建物の内部および外部に設置可能な予製金属エンクロージャや組立式装置に焦点を当てており、電力システムの安全性と信頼性を確保するための基準を提供します。 この規格の強みは、最新の技術的改訂を含む点です。第3版では、IED 62271-1:2017との整合性を持たせた条項番号の整理や、運用条件の定義が明確化されています。この標準は、特に「稼働中」「通常運転条件」「通常使用」といった具体的な定義を設けることで、使用者に対して一層の明確さを提供しています。また、内部アーク試験の取り扱いやメカニカルインターロックの試験数の見直しが行われており、これにより試験プロセスが簡素化され、実用性が向上しています。 さらに、耳エイリング回路の説明が精緻化され、試験要件が追加されている点も特筆すべき部分です。この改訂は、業界の需要に応じた合理的なアプローチを示しており、特に新たに導入された1秒ルールは、内部アーク試験における火災リスクに対する対策として重要です。 IEC 62271-200:2021はまた、他の関連する規格（IEC 62271-100:2021、IEC 62271-103:2021など）との関係にも言及しており、業界全体で標準の適用を一貫性のあるものとしています。このように、SIST EN IEC 62271-200:2021は、金属エンクロージャスイッチギアおよび制御機器の設計と運用に関する明確で実用的なガイドラインを提供し、その適応性と関連性は今後の技術発展にも寄与するでしょう。
Die Norm SIST EN IEC 62271-200:2021 bietet eine umfassende Richtlinie für die Konstruktion und Verwendung von Hochspannungs-Schaltanlagen und -Geräten, die für Wechselstrom bei Nennspannungen über 1 kV bis einschließlich 52 kV ausgelegt sind. Diese dritte Ausgabe bringt wesentliche technische Revisionen mit sich, die die Benutzererfahrung verbessern und die Sicherheit erhöhen sollen. Ein herausragendes Merkmal dieser Norm ist die Aktualisierung der Abschnittsnummerierung in Übereinstimmung mit IEC 62271-1:2017. Durch die Angleichung an die neueste Norm wird eine einheitliche und klare Struktur gewährleistet, was die Benutzerfreundlichkeit und das Verständnis der Norm erheblich fördert. Zudem wurden spezifische Definitionen für Begriffe wie "in Betrieb", "Normalbetriebsbedingungen" und "normale Nutzung" hinzugefügt, die eine präzisere Kommunikation und Anwendung der Norm ermöglichen. Die Beseitigung der internen Lichtbogenprüfungen für aufgestellte Schaltanlagen aus diesem Dokument und deren Übertragung an die spezifische Norm IEC 62271-214:2019 verdeutlicht eine sinnvolle Fokussierung und Entlastung des Inhalts, sodass der Dokumentationsaufwand verringert wird, ohne die Sicherheit zu kompromittieren. Darüber hinaus bietet die Norm eine genauere Beschreibung der Erdungsschaltungen sowie der Prüfanforderungen, was die Einhaltung von Sicherheitsstandards erleichtert und den Anwendern eine verbesserte Orientierung bietet. Die Reduzierung der mechanischen Prüfungen für Verriegelungen im Rahmen der Typprüfung, gepaart mit einer präziseren Beschreibung der anzuwendenden Kräfte, stellt einen weiteren Schritt in Richtung Effizienz dar. Die Norm berücksichtigt außerdem die Notwendigkeit von Widerstandsmessungen nur vor kontinuierlichen Stromprüfungen, wodurch der Prüfprozess gestrafft wird. Ein weiterer signifikantes Element ist die Einführung einer 1-Sekunden-Regel für Kriterium 4 während der IAC-Tests, die klare Leitlinien zur Prävention von Zündursachen durch heiße Gase im Vergleich zu glühenden Partikeln festlegt. Dies unterstreicht die Relevanz der Norm für die Sicherheitsanforderungen im Bereich der Hochspannungstechnik. Schließlich fasst die Norm die Beziehung zu anderen relevanten Normen wie IEC 62271-100:2021 und IEC 62271-103:2021 zusammen, was die Integration dieser Norm in ein breiteres Regelwerk und den sicheren Betrieb von Hochspannungsanlagen fördert. Insgesamt bietet die SIST EN IEC 62271-200:2021 eine wertvolle Ressource, die sowohl die Sicherheit als auch die Effizienz in der Anwendung von Hochspannungs-Schaltanlagen maßgeblich verbessert.
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