EN IEC 60034-2-1 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHENORM April 2024 ICS29.160.01 Supersedes EN 60034-2-1:2014 English Version Rotating electrical machines - Part 2-1: Standard methods for determining losses and efficiency from tests (excluding machines for traction vehicles) (IEC 60034-2-1:2024) Machines electriques tournantes - Partie 2-1: Methodes Drehende elektrische Maschinen - Teil 2-1: normalisees pour la determination des pertes et du Standardverfahren zur Bestimmung der Verluste und des rendement a partir d'essais (a I'exclusion des machines Wirkungsgrades aus Prufungen (ausgenommen Maschinen pour vehicules de traction) fur Schienen- und Stralsenfahrzeuge) (IEC 60034-2-1:2024) (IEC 60034-2-1:2024) This European Standard was approved by CENELEC on 2024-04-16. 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 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, Turkiye and the United Kingdom. EuropeanCommitteeforElectrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fir Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels 2024 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref.No.EN IEC 60034-2-1:2024 E EN IEC 60034-2-1:2024 (E) European foreword The text of document 2/2165/FDIS, future edition 3 of IEC 60034-2-1, prepared by IEC/TC 2 "Rotating machinery" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 60034-2-1:2024. The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2025-01-16 latest date by which the national standards conflicting with the(dow) 2027-04-16 document have to be withdrawn This document supersedes EN 60034-2-1:2014 and all of its amendments and corrigenda (if any) Attention is drawn to the possibility that some of the elements of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. This document has been prepared under a standardization request addressed to CENELEC by the requests for its Member States. Any feedback and questions on this document should be directed to the users'national committee. A completelistingof these bodies can befound ontheCENELEC website. The text of the International Standard IEC60034-2-1:2024 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 standard indicated: IEC 60034-2-2NOTEApproved as EN 60034-2-2 IEC60034-2-3NOTEApprovedasENIEC60034-2-3 IEC 60072-1NOTEApprovedas ENIEC 60072-1 IEC60085 NOTEApprovedasEN60085 EN IEC 60034-2-1:2024 (E) Annex ZA (normative) Normativereferencesto international publications withtheircorrespondingEuropeanpublications The followingdocuments are referred to in the text in such a waythat 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 r