EN IEC 60794-1-218 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHENORM October2025 ICS33.180.10 Supersedes EN IEC 60794-1-22:2018 (partially) English Version Opticalfibre cables-Part 1-218:Generic specification-Basic optical cable test procedures - Environmental test methods - Mid-span temperature cycling test for exposed optical units, Method F18 (IEC 60794-1-218:2025) Cables a fibres optiques -Partie 1-218: Spécification Lichtwellenleiterkabel - Teil 1-218: Fachgrundspezifikation - generique - Procedures fondamentales d'essais des cables Grundlegende Prufverfahren fur Lichtwellenleiterkabel - optiques - Methodes d'essai d'environnement - Essai de Umweltprufverfahren - Mid-Span- cycles de temperature a mi-portee pour les elements Temperaturwechselprufung fur freiliegende optische optiques exposes, Methode F18 Einheiten, Verfahren F18 (IEC 60794-1-218:2025) (IEC 60794-1-218:2025) This European Standard was approved by CENELEC on 2025-09-11. CENELEC members are bound to comply with the CEN/CENELEC Intermal 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 orto 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, Turkiye and the United Kingdom. CENELEC European Committee forElectrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fir Elektrotechnische Normung CEN-CENELEC Management Centre: Rue dela Science 23, B-1040 Brussels 2025 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref.No.EN IEC 60794-1-218:2025 E EN IEC 60794-1-218:2025 (E) European foreword The text of document 86A/2587/FDIS, future edition 1 of IEC 60794-1-218, prepared by SC 86A "Fibres and cables"of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as ENIEC 60794-1-218:2025. The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2026-10-31 level by publication of an identical national standard or by endorsement latest date by which the national standards conflicting with the(dow) 2028-10-31 document havetobewithdrawn This document partially supersedes EN IEC 60794-1-22:2018 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 60794-1-218:2025 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC60794-1-2 NOTEApprovedas ENIEC 60794-1-2 2 ENIEC60794-1-218:2025 (E) Annex ZA (normative) Normativereferencesto international publications withtheircorrespondingEuropeanpublications The following documents are referred to in the text in such a way that