EN IS0 21789 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM October 2022 ICS 27.040 English Version Gas turbine applications - Safety Applications des turbines a gaz - Sécuritée Gasturbinenanwendungen - Sicherheit This European Standard was approved by CEN on 24 June 2022. CEN 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 CEN member. This European Standard exists in three official versions (English, French, German). A version in any other language made by Centrehas the samestatusasthe officialversions. CENmembers are thenational standards bodies of Austria, Belgium,Bulgaria, Croatia, Cyprus, Czech Republic, Denmark,Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and United Kingdom. er EUROPEANCOMMITTEEFORSTANDARDIZATION COMITE EUROPEENDE NORMALISATION EUROPAISCHESKOMITEEFURNORMUNG CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @2022CEN All rights of exploitation in any form and by any means reserved Ref.No.ENISO21789:2022E worldwidefor CENnational Members. EN IS0 21789:2022 (E) Contents European foreword... Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2006/42 /EC aimed to be covered.. Annex zB (informative) Relationship between this European Standard and the essential requirements of EU Directive 2014/34/EU... 2 EN IS0 21789:2022 (E) European foreword This document (EN IS0 21789:2022) has been prepared by Technical Committee IS0/TC 192 "Ga turbines" in collaboration with Technical Committee CEN/TC 399 “Gas Turbines applications - Safety" the secretariat of which is held by BSI. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2023, and conflicting national standards shall be withdrawn at the latest by April 2023. Attention is drawn to the possibility that some of the elements of this document may be the subject of This document has been prepared under a Standardization Request given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s) / Regulation(s). For the relationship with EU Directive(s) / Regulation(s), see informative Annex ZA and ZB, which is an integral part of this document. Any feedback and questions on this document should be directed to the users' national standards body/national committee. A complete listing of these bodies can be found on the CEN website. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkiye and the United Kingdom. Endorsement notice The text of IS0 21789:2022 has been approved by CEN as EN IS0 21789:2022 without any modification. 3 EN IS0 21789:2022 (E) Annex ZA (informative) Relationship between this European Standard and the essential requirements of Directive 2006/42/EC aimed to be covered This European Standard has been prepared under a Commission's standardization request “"M/396 Mandate to CEN and CENELEC for Standardisation in the field of machinery" to provide one voluntary and of the Council of 17 May 2006 on machinery and amending Directive 95/16/EC (recast). Once this standard is