BSENIEC61757-1-1:2020 BSl Standards Publication Fibre optic sensors Part 1-1: Strain measurement - Strain sensors based on fibre Bragg gratings bsi. BSENIEC61757-1-1:2020 BRITISH STANDARD National foreword ThisBritish StandardistheUK implementation of EN IEC 61757-1-1:2020.It is identical to IEC 61757-1-1:2020.It supersedes BS EN 61757-1-1:201Z, which is withdrawn The UK participation in its preparation was entrusted to Technical Committee GEL/86/3, Fibre optic systems and active devices. Alist of organizationsrepresented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions ofacontract.Usersareresponsibleforitscorrectapplication. TheBritishStandards Institution2020 Published by BSI Standards Limited 2020 ISBN9780539031072 ICS33.180.99 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the StandardsPolicyand Strategy Committeeon31May2020. Amendments/corrigendaissuedsincepublication Date Textaffected BSENIEC61757-1-1:2020 EN IEC 61757-1-1 EUROPEANSTANDARD NORME EUROPEENNE EUROPAISCHE NORM May2020 ICS33.180.99 Supersedes EN 61757-1-1:2017 and all of its amendments and corrigenda (if any) English Version Fibre optic sensors - Part 1-1: Strain measurement - Strain sensorsbased onfibre Bragggratings (IEC 61757-1-1:2020) Capteurs fibroniques - Partie 1-1: Mesure de deformation - Lichtwellenleitersensoren - Teil 1-1: Dehnungsmessungen - Capteurs de deformation basés sur des reseaux de Bragg a Dehnungssensoren basierend auf Faser-Bragg-Gitter fibres (IEC 61757-1-1:2020) (IEC 61757-1-1:2020) 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 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, Turkey and the United Kingdom. CENELEC EuropeanCommitteefor Electrotechnical Standardization ComiteEuropeendeNormalisationElectrotechnique Europaisches Komitee fuir Elektrotechnische Normung CEN-CENELEC Management Centre: Rue dela Science23,B-1040Brussels Ref. No. EN IEC 61757-1-1:2020 E