EN IEC 62271-203 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHE NORM July 2022 ICS 29.130.10 Supersedes EN 62271-203:2012 English Version High-voltage switchgear and controlgear - Part 203: AC gas- insulated metal-enclosed switchgear for rated voltages above 52 kV (IEC 62271-203:2022) Appareillage a haute tension - Partie 203: Appareillage Hochspannungs-Schaltgerate und -Schaltanlagen - Teil sous enveloppe métallique a isolation gazeuse et a courant 203: Gasisolierte metallgekapselte Schaltanlagen fur alternatif de tensions assignees superieures a 52 kV Bemessungsspannungen uber 52 kV (IEC 62271-203:2022) (IEC 62271-203:2022) This European Standard was approved by CENELEC on 2022-07-04. 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. 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. NELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @ 2022 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No.EN IEC 62271-203:2022 E EN IEC 62271-203:2022 (E) European foreword The text of document 17C/835/FDIS, future edition 3 of IEC 62271-203, prepared by SC 17C The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2023-04-04 latest date by which the national standards conflicting withthe(dow)2025-07-04 document have to be withdrawn Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.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. complete listing of these bodies can be found on the CENELEC website. The text of the International Standard IEC 62271-203:2022 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 60060-1 NOTE Harmonized as EN 60060-1 IEC 60071-1:2019 NOTE Harmonized as EN IEC 60071-1:2019 (not modified) IEC 61462 NOTE Harmonized as EN 61462 NOTE Harmonized as EN 61672-1 IEC 61672-1 NOTE Harmonized as EN 61672-2 IEC 61672-2 IEC 62155 NOTE Harmonized as EN 62155 EN IEC 62271-203:2022 (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. EN/HD Publication Year Year Title IEC 60068-2-11 Environmental testing - Part 2-11: Tests - EN IEC 60