EN 60794-1-2-2017 en Optical fibre cables - Part 1-2 Generic specification - Basic optical cable test procedures - General guidance.pdf

1、Optical fibre cablesPart 1-2: Generic specification Basic optical cable test procedures General guidanceBS EN 60794-1-2:2017BSI Standards PublicationWB11885_BSI_StandardCovs_2013_AW.indd 1 15/05/2013 15:06National forewordThis British Standard is the UK implementation of EN 60794-1-2:2017. It isiden

2、tical to IEC 60794-1-2:2017. It supersedes BS EN 60794-1-2:2014 whichis withdrawn.The UK participation in its preparation was entrusted by TechnicalCommittee GEL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibresand cables.A list of organizations represented on this committee can be obtained

3、 onrequest to its secretary.This publication does not purport to include all the necessary provisions ofa contract. Users are responsible for its correct application. The British Standards Institution 2017.Published by BSI Standards Limited 2017ISBN 978 0 580 92212 1ICS 33.180.10Compliance with a Br

4、itish Standard cannot confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 April 2017.Amendments/corrigenda issued since publicationDate Text affectedBRITISH STANDARDBS EN 60794-1-2:2017EUROPEAN STANDARD NOR

5、ME EUROPENNE EUROPISCHE NORM EN 60794-1-2 March 2017 ICS 33.180.10 Supersedes EN 60794-1-2:2014 English Version Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures - General guidance (IEC 60794-1-2:2017) Cbles fibres optiques - Partie 1-2: Spcification gnriqu

6、e - Procdures fondamentales dessais des cbles optiques - Lignes directrices gnrales (IEC 60794-1-2:2017) Lichtwellenleiterkabel - Teil 1-2: Fachgrundspezifikation - Grundlegende Prfverfahren fr Lichtwellenleiterkabel - Allgemeine Anleitung (IEC 60794-1-2:2017) This European Standard was approved by

7、CENELEC on 2017-02-16. 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 sta

8、ndards 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 langu

9、age 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, Franc

10、e, 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. European Committee for Electrotechnical Standardization Comit Europen

11、 de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2017 CENELEC All rights of exploitation in any form and by any means reserved worldwide for CENELEC Members. Ref. No. EN 60794-1-2:2017 E BS EN 60794-1

12、-2:2017EN 60794-1-2:2017 2 European foreword The text of document 86A/1767/FDIS, future edition 4 of IEC 60794-1-2, prepared by SC 86A “Fibres and cables“ of IEC/TC 86 “Fibre optics“ was submitted to the IEC-CENELEC parallel vote and approved by CENELEC as EN 60794-1-2:2017. The following dates are

13、fixed: latest date by which the document has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2017-11-16 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2020-02-16 This document supersede

14、s EN 60794-1-2:2014. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CENELEC and/or CEN shall not be held responsible for identifying any or all such patent rights. Endorsement notice The text of the International Standard IEC 607

15、94-1-2:2017 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 standards indicated IEC 60794-1-21 NOTE Harmonized as EN 60794-1-21. IEC 60794-1-22 NOTE Harmonized as EN 60794-1-22. IEC 60794

16、-1-23 NOTE Harmonized as EN 60794-1-23. IEC 60794-1-24 NOTE Harmonized as EN 60794-1-24. BS EN 60794-1-2:2017EN 60794-1-2:2017 3 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following documents, in whole or in part, are no

17、rmatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE 1 When an International Publication has been modified

18、by common modifications, indicated by (mod), the relevant EN/HD applies. NOTE 2 Up-to-date information on the latest versions of the European Standards listed in this annex is available here: www.cenelec.eu. Publication Year Title EN/HD Year IEC 60793-1-40 - Optical fibres - Part 1-40: Measurement m

19、ethods and test procedures - Attenuation EN 60793-1-40 - IEC 60793-1-46 - Optical fibres - Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmittance EN 60793-1-46 - IEC 60793-2-40 - Optical fibres - Part 2-40: Product specifications - Sectional specification

20、 for category A4 multimode fibres EN 60793-2-40 - IEC 60794-1-1 2015 Optical fibre cables - Part 1-1: Generic specification - General EN 60794-1-1 2016 BS EN 60794-1-2:2017 2 IEC 60794-1-2:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions

21、 7 4 General guidance 7 4.1 Test procedure format . 7 4.2 Standard atmospheric conditions 7 4.3 Symbols and abbreviated terms 7 4.4 Safety and environmental aspects. 8 4.5 Calibration 8 4.5.1 Calibration process 8 4.5.2 Assessment of uncertainties 1 . 8 4.6 Preconditioning . 8 4.7 Guide to qualifica

22、tion sampling . 8 4.8 Optical launch conditions 8 4.9 Standard optical test wavelengths . 9 Bibliography 10 Table 1 Document overview . 6 Table 2 Standard optical test wavelengths . 9 BS EN 60794-1-2:2017IEC 60794-1-2:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES P

23、art 1-2: Generic specification Basic optical cable test procedures General guidance FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising all national electrotechnical committees (IEC National Committees). The object of IEC is to p

24、romote international co-operation on all questions concerning standardization in the electrical and electronic fields. To this end and in addition to other activities, IEC publishes International Standards, Technical Specifications, Technical Reports, Publicly Available Specifications (PAS) and Guid

25、es (hereafter referred to as “IEC Publication(s)”). Their preparation is entrusted to technical committees; any IEC National Committee interested in the subject dealt with may participate in this preparatory work. International, governmental and non-governmental organizations liaising with the IEC a

26、lso participate in this preparation. IEC collaborates closely with the International Organization for Standardization (ISO) in accordance with conditions determined by agreement between the two organizations. 2) The formal decisions or agreements of IEC on technical matters express, as nearly as pos

27、sible, an international consensus of opinion on the relevant subjects since each technical committee has representation from all interested IEC National Committees. 3) IEC Publications have the form of recommendations for international use and are accepted by IEC National Committees in that sense. W

28、hile all reasonable efforts are made to ensure that the technical content of IEC Publications is accurate, IEC cannot be held responsible for the way in which they are used or for any misinterpretation by any end user. 4) In order to promote international uniformity, IEC National Committees undertak

29、e to apply IEC Publications transparently to the maximum extent possible in their national and regional publications. Any divergence between any IEC Publication and the corresponding national or regional publication shall be clearly indicated in the latter. 5) IEC itself does not provide any attesta

30、tion of conformity. Independent certification bodies provide conformity assessment services and, in some areas, access to IEC marks of conformity. IEC is not responsible for any services carried out by independent certification bodies. 6) All users should ensure that they have the latest edition of

31、this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents including individual experts and members of its technical committees and IEC National Committees for any personal injury, property damage or other damage of any nature whatsoever, whether direct or

32、indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normative references cited in this publication. Use of the referenced publications is indispensable fo

33、r the correct application of this publication. 9) Attention is drawn to the possibility that some of the elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60794-1-2 has bee

34、n prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This fourth edition cancels and replaces the third edition published in 2013 and IEC 60794-1-20 published in 2014. This edition constitutes a technical revision. This edition includes the following signif

35、icant technical changes with respect to the previous edition and to IEC 60794-1-20: a) the multiple cross-reference tables have been deleted and replaced with a higher level one related to the generic standards; b) all pertinent text from IEC 60794-1-20 has been included; c) standard optical test wa

36、velengths have been introduced; d) this document has been streamlined by cross-referencing IEC 60794-1-1; BS EN 60794-1-2:2017 4 IEC 60794-1-2:2017 IEC 2017 e) the “No change in attenuation“ definitions contained in IEC 60794-1-20 have been transferred to IEC 60794-1-1; f) the title has been modifie

37、d to reflect the contents of the new edition. This International Standard is to be used in conjunction with IEC 60794-1-1:2015. The text of this standard is based on the following documents: FDIS Report on voting 86A/1767/FDIS 86A/1775/RVD Full information on the voting for the approval of this stan

38、dard can be found in the report on voting indicated in the above table. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts in the IEC 60794 series, published under the general title Optical fibre cables, can be found on the IEC website. The commi

39、ttee has decided that the contents of this publication will remain unchanged until the stability date indicated on the IEC web site under “http:/webstore.iec.ch“ in the data related to the specific publication. At this date, the publication will be reconfirmed, withdrawn, replaced by a revised editi

40、on, or amended. BS EN 60794-1-2:2017IEC 60794-1-2:2017 IEC 2017 5 INTRODUCTION IEC 60794-1-2:2013 comprised a detailed cross-reference table to the new document set, and general guidance was given in IEC 60794-1-20. These two specifications have been combined in this document, which allows for IEC 6

41、0794-1-20 to be withdrawn. BS EN 60794-1-2:2017 6 IEC 60794-1-2:2017 IEC 2017 OPTICAL FIBRE CABLES Part 1-2: Generic specification Basic optical cable test procedures General guidance 1 Scope This part of IEC 60794-1 applies to optical fibre cables for use with telecommunications equipment and devic

42、es employing similar techniques, and to cables having a combination of both optical fibres and electrical conductors. The prime objective of this document is to provide the end user with an overview about the content of different parts of the IEC 60794-1 series numbered -2X. Table 1 shows the differ

43、ent parts. Table 1 Document overview Test methods IEC reference General guidance IEC 60794-1-2 Methods E Mechanical IEC 60794-1-21 Methods F Environmental IEC 60794-1-22 Methods G Cable elements IEC 60794-1-23 Methods H Electrical IEC 60794-1-24 NOTE Several numbers in the test method numbering sequ

44、ence are missing. The reasons for these omissions are historical. To avoid confusion, the existing numbering sequence has been retained. These documents define test procedures to be used in establishing uniform requirements for the geometrical, transmission, material, mechanical, ageing (environment

45、al exposure) and climatic properties of optical fibre cables, and electrical requirements where appropriate. Throughout the documents, the wording “optical cable“ can also include optical fibre units, microduct fibre units, etc. The secondary objective of this document is to provide the end user wit

46、h useful guidance when testing optical fibre cables. 2 Normative references 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. For undated references, the

47、 latest edition of the referenced document (including any amendments) applies. IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-1-46, Optical fibres Part 1-46: Measurement methods and test procedures Monitoring of changes in optical transmittanc

48、e BS EN 60794-1-2:2017IEC 60794-1-2:2017 IEC 2017 7 IEC 60793-2-40, Optical fibres Part 2-40: Product specifications Sectional specification for category A4 multimode fibres IEC 60794-1-1:2015, Optical fibre cables: Generic specification General 3 Terms and definitions For the purposes of this docum

49、ent, the terms and definitions given in IEC 60794-1-1 apply. ISO and IEC maintain terminological databases for use in standardization at the following addresses: IEC Electropedia: available at http:/www.electropedia.org/ ISO Online browsing platform: available at http:/www.iso.org/obp 4 General guidance 4.1 Test procedure format The standard descriptive order of each test method is in general as follows: object, sample, apparatus, proce