《BS-EN-60793-2-50-2008.pdf》由会员分享，可在线阅读，更多相关《BS-EN-60793-2-50-2008.pdf（42页珍藏版）》请在三一文库上搜索。
1、Optical fibres Part 2-50: Product specifications Sectional specification for class B single-mode fibres BS EN 60793-2-50:2008 raising standards worldwide NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW BSI British Standards Licensed CopyChinese University of Hong Kong, 11/04/2
2、009 07:53, Uncontrolled Copy, (c) BSI National foreword This British Standard is the UK implementation of EN 60793-2-50:2008. It is identical to IEC 60793-2-50:2008. It supersedes BS EN 60793-2-50:2004 which is withdrawn. The UK participation in its preparation was entrusted by Technical Committee G
3、EL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibres and cables. 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 are responsible for its correct
4、application. Compliance with a British Standard cannot confer immunity from legal obligations. BSI 200 ISBN 978 0 580 57362 0 ICS 33.180.10 Amendments issued since publication Amd. No. Date Text affected BRITISH STANDARDBS EN 60793-2-50:2008 9 This British Standard was published under the authority
5、of the Standards Policy and Strategy Committee on 31 January 2009. Licensed CopyChinese University of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI EUROPEAN STANDARD EN 60793-2-50 NORME EUROPENNE EUROPISCHE NORM November 2008 CENELEC European Committee for Electrotechnical Standardization
6、Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2008 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60793-2-50:2008 E ICS
7、 33.180.10 Supersedes EN 60793-2-50:2004 English version Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-mode fibres (IEC 60793-2-50:2008) Fibres optiques - Partie 2-50: Spcifications de produits - Spcification intermdiaire pour les fibres unimodales d
8、e classe B (CEI 60793-2-50:2008) Lichtwellenleiter - Teil 2-50: Produktspezifikationen - Rahmenspezifikation fr Einmodenfasern der Kategorie B (IEC 60793-2-50:2008) This European Standard was approved by CENELEC on 2008-10-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulat
9、ions 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 Central Secretariat or to any CENELEC member. This
10、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 Central Secretariat has the same status as the official versions. CENELEC members
11、are the national electrotechnical committees of Austria, Belgium, Bulgaria, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia,
12、Spain, Sweden, Switzerland and the United Kingdom. BS EN 60793-2-50:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI EN 60793-2-50:2008 - 2 - Foreword The text of document 86A/1164/CDV, future edition 3 of IEC 60793-2-50, prepared by SC 86A, Fibres and
13、cables, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as EN 60793-2-50 on 2008-10-01. This European Standard supersedes EN 60793-2-50:2004 + corrigendum July 2004. Compared to EN 60793-2-50:2004, this EN 60793-2-50:2008 aligns the requirements
14、 with the relevant ITU-T Recommendations, including tightening the tolerances of many parameters; provides a means for defining the requirements of sub-categories; now includes two sub-categories for B1.2 fibres; now includes three sub-categories for B4 fibres; replaces the traditional method of spe
15、cifying chromatic dispersion coefficient by limiting curves vs. wavelength for two of the sub-categories for B4 fibres; adds a new category, B5, which corresponds to the fibres defined in ITU-T Recommendation G.656; adds a new category, B6, which corresponds to the fibres defined in ITU-T Recommenda
16、tion G.657; adds an informative annex that maps the nomenclature of the IEC fibre specifications to that of the ITU-T fibre recommendations; adds a clause for definitions; adds a clause for abbreviations; removes the dates from the normative references. The following dates were fixed: latest date by
17、 which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2009-07-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2011-10-01 Annex ZA has been added by CENELEC. _ Endorsement notice
18、 The text of the International Standard IEC 60793-2-50:2008 was approved by CENELEC as a European Standard without any modification. _ BS EN 60793-2-50:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI - 3 - EN 60793-2-50:2008 Annex ZA (normative) Normat
19、ive references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced do
20、cument (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60793-1-1 -1) Optical fibres - Part 1-1: Measurement methods and test procedures - Genera
21、l and guidance EN 60793-1-1 20082) IEC 60793-1-20 -1) Optical fibres - Part 1-20: Measurement methods and test procedures - Fibre geometry EN 60793-1-20 20022) IEC 60793-1-21 -1) Optical fibres - Part 1-21: Measurement methods and test procedures - Coating geometry EN 60793-1-21 20022) IEC 60793-1-2
22、2 -1) Optical fibres - Part 1-22: Measurement methods and test procedures - Length measurement EN 60793-1-22 20022) IEC 60793-1-30 -1) Optical fibres - Part 1-30: Measurement methods and test procedures - Fibre proof test EN 60793-1-30 20022) IEC 60793-1-31 -1) Optical fibres - Part 1-31: Measuremen
23、t methods and test procedures - Tensile strength EN 60793-1-31 20022) IEC 60793-1-32 (mod) -1) Optical fibres - Part 1-32: Measurement methods and test procedures - Coating strippability EN 60793-1-32 20032) IEC 60793-1-33 -1) Optical fibres - Part 1-33: Measurement methods and test procedures - Str
24、ess corrosion susceptibility EN 60793-1-33 20022) IEC 60793-1-34 -1) Optical fibres - Part 1-34: Measurement methods and test procedures - Fibre curl EN 60793-1-34 20062) IEC 60793-1-40 (mod) -1) Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation EN 60793-1-40 20032) I
25、EC 60793-1-42 -1) Optical fibres - Part 1-42: Measurement methods and test procedures - Chromatic dispersion EN 60793-1-42 20072) IEC 60793-1-44 -1) Optical fibres - Part 1-44: Measurement methods and test procedures - Cut-off wavelength EN 60793-1-44 20022) 1) Undated reference. 2) Valid edition at
26、 date of issue. BS EN 60793-2-50:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI EN 60793-2-50:2008 - 4 - Publication Year Title EN/HD Year IEC 60793-1-45 (mod) -1) Optical fibres - Part 1-45: Measurement methods and test procedures - Mode field diamet
27、er EN 60793-1-45 + corr. April 20032) 2004 IEC 60793-1-46 -1) Optical fibres - Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmittance EN 60793-1-46 20022) IEC 60793-1-47 -1) Optical fibres - Part 1-47: Measurement methods and test procedures - Macrobendin
28、g loss EN 60793-1-47 20072) IEC 60793-1-48 -1) Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion EN 60793-1-48 20072) IEC 60793-1-50 -1) Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state) EN 60793-1-50 20022
29、) IEC 60793-1-51 -1) Optical fibres - Part 1-51: Measurement methods and test procedures - Dry heat EN 60793-1-51 20022) IEC 60793-1-52 -1) Optical fibres - Part 1-52: Measurement methods and test procedures - Change of temperature EN 60793-1-52 20022) IEC 60793-1-53 -1) Optical fibres - Part 1-53:
30、Measurement methods and test procedures - Water immersion EN 60793-1-53 20022) IEC 60793-2 -1) Optical fibres - Part 2: Product specifications - General EN 60793-2 20082) IEC 60794-2 -1) Optical fibre cables - Part 2: Indoor cables - Sectional specification EN 60794-2 20032) BS EN 60793-2-50:2008 Li
31、censed CopyChinese University of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI 2 60793-2-50 IEC:2008 CONTENTS 1 Scope.6 2 Normative references .6 3 Terms and definitions .7 4 Abbreviations and symbols.7 5 Specifications.8 5.1 General.8 5.2 Dimensional requirements .8 5.3 Mechanical require
32、ments.9 5.4 Transmission requirements .10 5.5 Environmental requirements11 5.5.1 Optical environmental requirements.12 5.5.2 Mechanical environmental requirements12 Annex A (normative) Family specification for B1.1 single-mode fibres14 Annex B (normative) Family specification for B1.2 single-mode fi
33、bres16 Annex C (normative) Family specification for B1.3 single-mode fibres18 Annex D (normative) Family specification for B2 single-mode fibres.21 Annex E (normative) Family specification for B4 single-mode fibres.24 Annex F (normative) Family specification for B5 single-mode fibres.27 Annex G (nor
34、mative) Family specification for B6 single-mode fibres 30 Annex H (informative) System design information for B4 single-mode fibres 33 Annex I (informative) Map from IEC nomenclature to ITU-T recommendations.36 Bibliography37 Figure H.1 B4_d chromatic dispersion coefficient limits34 Figure H.2 B4_e
35、chromatic dispersion coefficient limits35 Table 1 Dimensional attributes and measurement methods8 Table 2 Requirements common to class B fibres9 Table 3 Mechanical attributes and test methods.9 Table 4 Requirements common to class B fibres10 Table 5 Transmission attributes and measurement methods 10
36、 Table 6 Requirements common to class B fibres11 Table 7 Additional attributes required in the family specifications.11 Table 8 Environmental exposure tests .11 Table 9 Attributes measured 11 Table 10 Change in attenuation for environmental tests.12 Table 11 Coating strip force for environmental tes
37、ts.12 Table 12 Tensile strength for environmental tests 12 Table 13 Stress corrosion susceptibility for environmental tests.13 Table A.1 Dimensional requirements specific to B1.1 fibres .14 Table A.2 Mechanical requirements specific to B1.1 fibres.14 BS EN 60793-2-50:2008 Licensed CopyChinese Univer
38、sity of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI 60793-2-50 IEC:2008 3 Table A.3 Transmission requirements specific to B1.1 fibres15 Table B.1 Dimensional requirements specific to B1.2 fibres .16 Table B.2 Mechanical requirements specific to B1.2 fibres.17 Table B.3 Transmission requi
39、rements specific to B1.2 fibres17 Table C.1 Dimensional requirements specific to B1.3 fibres .18 Table C.2 Mechanical requirements specific to B1.3 fibres.19 Table C.3 Transmission requirements specific to B1.3 fibres .19 Table D.1 Dimensional requirements specific to B2 fibres21 Table D.2 Mechanica
40、l requirements specific to B2 fibres22 Table D.3 Transmission requirements specific to B2 fibres 22 Table E.1 Dimensional requirements specific to B4 fibres 24 Table E.2 Mechanical requirements specific to B4 fibres25 Table E.3 Transmission requirements specific to B4 fibres.25 Table F.1 Dimensional
41、 requirements specific to B5 fibres 27 Table F.2 Mechanical requirements specific to B5 fibres28 Table F.3 Transmission requirements specific to B5 fibres.28 Table G.1 Dimensional requirements specific to B6 fibres30 Table G.2 Mechanical requirements specific to B6 fibres .31 Table G.3 Transmission
42、requirements specific to B6 fibres 32 Table H.1 Examples for min = 1 530 nm and max = 1 565 nm 33 Table I.1 Map of IEC to ITU .36 BS EN 60793-2-50:2008 Licensed CopyChinese University of Hong Kong, 11/04/2009 07:53, Uncontrolled Copy, (c) BSI 6 60793-2-50 IEC:2008 OPTICAL FIBRES Part 2-50: Product s
43、pecifications Sectional specification for class B single-mode fibres 1 Scope This part of IEC 60793 is applicable to optical fibre types B1.1, B1.2, B1.3, and categories B2, B4, B5 and B6. A map illustrating the connection of IEC designations to ITU-T designations is shown in Annex I. These fibres a
44、re used or can be incorporated in information transmission equipment and optical fibre cables. Three types of requirements apply to these fibres: general requirements, as defined in IEC 60793-2; specific requirements common to the class B single-mode fibres covered in this standard and which are giv
45、en in Clause 3; particular requirements applicable to individual fibre types or specific applications, which are defined in Annexes A to G. For some family specifications, there are sub-categories that are distinguished on the basis of difference in transmission attribute specifications. The designa
46、tions for these sub- categories are documented in the individual family specifications. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies. For undated references, the latest edition o
47、f the referenced document (including any amendments) applies. IEC 60793-1-1, Optical fibres Measurement methods and test procedures Part 1-1: General and guidance IEC 60793-1-20, Optical fibres Part 1-20: Measurement methods and test procedures Fibre geometry IEC 60793-1-21, Optical fibres Part 1-21
48、: Measurement methods and test procedures Coating geometry IEC 60793-1-22, Optical fibres Part 1-22: Measurement methods and test procedures Length measurement IEC 60793-1-30, Optical fibres Part 1-30: Measurement methods and test procedures Fibre proof test IEC 60793-1-31, Optical fibres Part 1-31:
49、 Measurement methods and test procedures Tensile strength IEC 60793-1-32, Optical fibres Part 1-32: Measurement methods and test procedures Coating strippability IEC 60793-1-33, Optical fibres Part 1-33: Measurement methods and test procedures Stress corrosion susceptibility BS EN 60793-2-50:2008 Licensed CopyChinese University