EN IEC 60071-2 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHE NORM June2023 ICS29.080.30 Supersedes EN IEC 60071-2:2018 English Version Insulation co-ordination - Part 2: Application guidelines (IEC 60071-2:2023) Coordination de Ilisolement - Partie 2: Lignes directrices en Isolationskoordination - Teil 2: Anwendungsrichtinie matiere d'application (IEC60071-2:2023) (IEC 60071-2:2023) This European Standard was approved by CENELEC on 2023-06-28. 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 ManagementCentreortoanyCENELECmember. This European Standard exists in three official versions (English, French,German).A version in any other languagemade by translation under the responsibility of a CENELEC member into its own language and notifiedto the CEN-CENELEC Management Centre has the same status as the official versions. CENELEC membersare the nationalelectrotechnical 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, Turkiye and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung CEN-CENELEC Management Centre:Ruede la Science23,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 60071-2:2023 E EN IEC 60071-2:2023 (E) European foreword The text of document 99/356/CDV, future edition 5 of IEC 60071-2, prepared by IEC/TC 99 "Insulation co-ordination and system engineering of high voltage electrical power installations above 1,o kV AC and 1,5 kV DC" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60071-2:2023. The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2024-03-28 latest date by which the national standards conflictingwith the (dow) 2026-06-28 document have to be withdrawn Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.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. 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. Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standard indicated: IEC 60099-4:2014 NOTE Approved as EN 60099-4:2014 (not modified) IEC 60099-5 NOTE Approved as EN IEC 60099-5 IEC 60099-8 NOTE Approved as EN IEC 60099-8 IEC 60507 NOTE Approved as EN 60507 IEC 62271-1:2017 NOTE Approved as EN 62271-1:2017 (not modified) IEC 62271-100:2008 NOTE Approved as EN 62271-100:2009 (not modified) IEC 60721-2-3:2013 NOTE Approved as EN 60721-2-3:2014 (not modified) EN IEC 60071-2:2023 (E) Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents are referred to in thetext 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