IEC_TR_60825-17-2010.pdf

IEC/TR 60825-17 Edition 1.0 2010-11 TECHNICAL REPORT Safety of laser products Part 17:Safety aspects for use of passive optical components and optical cables in high power optical fibre communication systems IEC/TR 60825-17:2010(E)Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC,Geneva,Switzerland All rights reserved.Unless otherwise specified,no part of this publication may be reproduced or utilized in any form or by any means,electronic or mechanical,including photocopying and microfilm,without permission in writing from either IEC or IECs member National Committee in the country of the requester.If you have any questions about IEC copyright or have an enquiry about obtaining additional rights to this publication,please contact the address below or your local IEC member National Committee for further information.Droits de reproduction rservs.Sauf indication contraire,aucune partie de cette publication ne peut tre reproduite ni utilise sous quelque forme que ce soit et par aucun procd,lectronique ou mcanique,y compris la photocopie et les microfilms,sans laccord crit de la CEI ou du Comit national de la CEI du pays du demandeur.Si vous avez des questions sur le copyright de la CEI ou si vous dsirez obtenir des droits supplmentaires sur cette publication,utilisez les coordonnes ci-aprs ou contactez le Comit national de la CEI de votre pays de rsidence.IEC Central Office 3,rue de Varemb CH-1211 Geneva 20 Switzerland Email:inmailiec.ch Web:www.iec.ch About IEC publications The technical content of IEC publications is kept under constant review by the IEC.Please make sure that you have the latest edition,a corrigenda or an amendment might have been published.Catalogue of IEC publications:www.iec.ch/searchpub The IEC on-line Catalogue enables you to search by a variety of criteria(reference number,text,technical committee,).It also gives information on projects,withdrawn and replaced publications.IEC Just Published:www.iec.ch/online_news/justpub Stay up to date on all new IEC publications.Just Published details twice a month all new publications released.Available on-line and also by email.Electropedia:www.electropedia.org The worlds leading online dictionary of electronic and electrical terms containing more than 20 000 terms and definitions in English and French,with equivalent terms in additional languages.Also known as the International Electrotechnical Vocabulary online.Customer Service Centre:www.iec.ch/webstore/custserv If you wish to give us your feedback on this publication or need further assistance,please visit the Customer Service Centre FAQ or contact us:Email:csciec.ch Tel.:+41 22 919 02 11 Fax:+41 22 919 03 00 Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.IEC/TR 60825-17 Edition 1.0 2010-11 TECHNICAL REPORT Safety of laser products Part 17:Safety aspects for use of passive optical components and optical cables in high power optical fibre communication systems INTERNATIONAL ELECTROTECHNICAL COMMISSION R ICS 31.260;33.180.01.PRICE CODEISBN 978-2-88912-237-0 Registered trademark of the International Electrotechnical Commission Copyrighted material licensed to BR Demo by Thomson Reuters(Scientific),Inc.,,downloaded on Nov-28-2014 by James Madison.No further reproduction or distribution is permitted.Uncontrolled when printed.2 TR 60825-17 IEC:2010(E)CONTENTS FOREWORD.3 INTRODUCTION.5 1 Scope.6 2 Normative references.6 3 Terms and definitions.6 4 Recommendations.8 4.1 General considerations the background to optical fibre damage at high powers.8 4.2 Additional recommendations for automatic power reduction(APR).8 4.3 The need for additional user information and its recommended format.9 4.4 Fibre and connector damage induced by high optical powers.11 4.4.1 Fibre fuse and other effects.11 4.4.2 Contamination particles.12 4.5 Splicing,polishing,and cleaning of connectors and fibre,and fibre preparation.12 4.5.1 General.12 4.5.2 Fibre in a splice tray.12 4.6 Other fibre core damage,coating or cladding damage and damage to adjacent services.13 4.7 Degradation or burn-through of protection cap and/or shutter.13 4.8 Potentially collimated beam profile resulting in an increased optical hazard.13 4.8.1 General.13 4.8.2 High power expanded beam connectors.14 4.8.3 Secondary hazards fire hazard.14 4.9 Increases in the temperatures of attenuators,collimators,splitters and other passive components.14 4.10 Additional labelling.15 4.11 Potential problems arising from incompatibly between fibre types.15 4.12 Identification of non-standard damage-resistant fibres.15 4.13 Other effects due to novel coatings or construction.16 Bibliography.17 Copyrighted material