BS ENIEC 60255-181:2019 BSl Standards Publication Measuring relays and protection equipment Part 181: Functional requirements for frequency protection bsi. BSENIEC60255-181:2019 BRITISH STANDARD National foreword This British Standard is the UK implementation of EN IEC 60255-181:2019.It is identical toIEC 60255-181:2019. The UK participation in its preparation was entrusted to Technical Committee PEL/95, Measuring relays and protection systems. A list of organizations represented on this committee can be obtained on request to its secretary. This publication does not purport to include all the necessary provisions of a contract.Users areresponsiblefor its correct application. @The British Standards Institution 2019 Published byBSI Standards Limited2019 ISBN9780580952036 ICS 29.120.70 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the StandardsPolicyandStrategyCommitteeon31May2019 Amendments/corrigendaissuedsincepublication Date Textaffected BSENIEC60255-181:2019 EUROPEANSTANDARD EN IEC 60255-181 NORME EUROPEENNE EUROPAISCHE NORM April 2019 ICS29.120.70 English Version Measuring relays and protection equipment - Part 181: Functional requirements for frequency protection (IEC 60255-181:2019) Relais de mesure et dispositifs de protection - Partie 181: Messrelais und Schutzeinrichtungen - Teil 181: Exigences fonctionnelles relatives auxprotections de Funktionsanforderungen fur den Frequenzschutz frequence (IEC 60255-181:2019) (IEC 60255-181:2019) This European Standard was approved by CENELEC on 2019-04-03. 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 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comite Europeen de Normalisation Electrotechnique Europaisches Komitee fur Elektrotechnische Normung CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels @ 2019 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No.EN IEC 60255-181:2019 E