IEC_IEEE_62582-5-2015.pdf

IEC/IEEE 62582-5 Edition 1.0 2015-06 INTER NA TIONA L STA NDA R D NOR ME INTER NA TIONA LE Nuclear power plants Inst rumentat ion and control important t o safety Electrical equipment condition monitoring methods Part 5:Opt ical time domain reflect ometry Centrales nuclaires de puissance Inst rumentat ion et contrle-commande importants pour la sret Mthodes de surv eillance de ltat des mat riels lectriques Partie 5:Technique de rtrodiffusion IEC/IEEE 62582-5:2015-06(en-fr)colourinside THIS PUBLICA TION IS COPYRIGHT PROTECTED Copyright 2015 IEC,Geneva,Switzerland Copyright 2015 IEEE All r ights reserved.Unless other wise specified,no part of this publication may be reproduced or utilized in any for m or by any means,electronic or mechanical,including photocopying and microf ilm,without per mission in writing being secured.Requests for per mission to r eproduce should be addressed to either IEC at the address below or IECs member National Committee in the country of the requester or f r om IEEE.IEC Centr al Office Institute of Electrical and Electronics Engineer s,Inc.3,rue de Varemb 3 Par k Avenue CH-1211 Geneva 20 New Yor k,NY 10016-5997 Switzerland United States of America Tel.:+41 22 919 02 11 stds.iprieee.org Fax:+41 22 919 03 00 www.ieee.org inf oiec.ch www.iec.ch About t he IEC The International Electr otechnical Commission(IEC)is the leading global organization that prepar es and publishes Inter national Standards for all electr ical,electronic and related technologies.About t he IEEE IEEE is the worlds largest professional association dedicated to advancing technological innovation and excellence for the benefit of humanity.IEEE and its member s inspire a global community through its highly cited publications,conferences,technology standar ds,and professional and educational activities.About IEC/IEEE publicat ions The technical content of IEC/IEEE publications is kept under constant r eview by the IEC and IEEE.Please make sure that you have the latest edition,a cor rigendum or an amendment might have been published.IEC Cat alogue-webst ore.iec.c h/cat alogue The stand-alone application for consulting the entire bibliographical information on IEC International Standards,Technical Specifications,Technical R eports and other documents.Av ailable for PC,Mac OS,A ndroid Tablets and iPad.IEC publicat ions search-ww w.iec.ch/searchpub The adv anced search enables to find IEC publications by a v ariety of criteria(reference number,text,technical committee,).It also gives information on projects,replaced and withdrawn publications.IEC Just Published-webst ore.iec.ch/just published Stay up to date on all new IEC publications.Just Published details all new publications released.A v ailable online and also once a month by email.Electropedia-www.elect ropedia.org The worlds leading online dic tionary of electronic and electrical terms containing more than 30 000 terms and definitions in English and French,with equiv alent terms in 15 additional languages.Also known as the International Electrotechnical Vocabulary(IEV)online.IEC Glossar y-st d.iec.ch/glossary More than 60 000 elec trotechnical terminology entries in English and French extracted from the Terms and Definitions clause of IEC publications issued since 2002.Some entries hav e been collec ted from earlier publications of IEC TC 37,77,86 and CISPR.IEC Cust omer Service Centre-webst ore.iec.ch/csc If you wish to giv e us your feedback on this publication or need further assistance,please contac t the Customer Service Centre:csciec.ch.IEC/IEEE 62582-5 Edition 1.0 2015-06 INTER NA TIONA L STA NDA R D NOR ME INTER NA TIONA LE Nuclear power plants Instrumentation and cont rol important t o safety Electrical equipment condition monitoring methods Part 5:Optical t ime domain reflect ometry Cent rales nuclaires de puissance Instrument ation et cont rle-commande importants pour la sret Mthodes de surv eillance de ltat des matriels lectriques Partie 5:Technique de rt rodiffusion INTERNA TIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNA TIONALE ICS 27.120.20 ISBN 978-2-8322-2704-6 Warning!Make sure that y ou obtained this publication from an authorized distributor.Attention!Veuillez vous assur er que vous avez obtenu cette publication via un distributeur agr.Register ed tr ademar k of the Inter national Electrotechnical Commission Mar que dpose de la Commission Electr otechnique Inter nationale colourinside 2 IEC/IEEE 62582-5:2015 IEC/IEEE 2015 CONTENTS FOREWORD.4 INTRODUCTION.6 1 Scope and object.8 2 Normative references.8 3 Terms and definitions.8 4 Abbreviations and acronyms.10 5 General description.10 6 Applicability and reproducibility.10 7 OTDR measurements procedure.11 7.1 General.11 7.2 Instrumentation.11 7.3 Measurement wavelengths.12 7.4 Calibration.12 7.5 Precautions for OTDR measurements.12 7.6 Conditioning.12 7.7 OTDR measurement.13 7.8 Measurement errors.15 7.9 Test report.15 Annex A(informative)Factors affecting the measurement o