EN IEC 61757-7-3 EUROPEANSTANDARD NORMEEUROPEENNE EUROPAISCHE NORM May 2024 ICS33.180.99 English Version Fibre optic sensors - Part 7-3: Voltage measurement - Polarimetric method (IEC 61757-7-3:2024) Capteurs fibroniques - Partie 7-3: Mesure de tension - Lichtwellenleiter-Sensoren - Teil 7-3: Spannungsmessung - Methode polarimetrique Polarimetrisches Verfahren (IEC 61757-7-3:2024) (IEC 61757-7-3:2024) This European Standard was approved by CENELEC on 2024-05-24. 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 CentreortoanyCENELECmember. 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 for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fir Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels Ref. No. EN IEC 61757-7-3:2024 E EN IEC 61757-7-3:2024 (E) European foreword The text of document 86C/1873/CDV, future edition 1 of IEC 61757-7-3, prepared by SC 86C "Fibre optic systems and active devices" of IEC/TC 86 "Fibre optics" was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN IEC 61757-7-3:2024. The following dates are fixed: latest date by which the document has to be implemented at national (dop) 2025-02-24 latest date by which the national standards conflictingwith the (dow) 2027-05-24 document have to be withdrawn Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights.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. Endorsement notice The text of the International Standard IEC 61757-7-3:2024 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: NOTE IEC61300-2-1 Approved as EN IEC 61300-2-1 IEC61300-2-9 NOTE Approved as EN 61300-2-9 2 EN IEC 61757-7-3:2024 (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. Fol 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. NOTE2Up-to-date information onthe latest versions of theEuropeanStandards listed inthis annex is available here: www.cencenelec.eu. EN/HD Year Publication Year Title IEC 61757 Fibre optic sensors - Generic specification EN IEC 61757 3