BS EN 60793-2-20-2009 光学纤维.产品规范.类别A2多模光纤的分规范.pdf
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1、? ? ? Optical fibres Part 2-20: Product specifications Sectional specification for category A2 multimode fibres BS EN 60793-2-20:2009 National foreword This British Standard is the UK implementation of EN 60793-2-20:2009. It is identical to IEC 60793-2-20:2007. It supersedes BS EN 60793-2-20:2002 wh
2、ich is withdrawn. The UK participation in its preparation was entrusted by Technical Committee GEL/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 purpo
3、rt to include all the necessary provisions of a contract. Users are responsible for its correct application. BSI 2009 ISBN 978 0 580 57360 6 ICS 33.180.10 Compliance with a British Standard cannot confer immunity from legal obligations. This British Standard was published under the authority of the
4、Standards Policy and Strategy Committee on 31 July 2009 Amendments issued since publication Amd. No. Date Text affected BRITISH STANDARDBS EN 60793-2-20:2009 EUROPEAN STANDARD EN 60793-2-20 NORME EUROPENNE EUROPISCHE NORM April 2009 CENELEC European Committee for Electrotechnical Standardization Com
5、it Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: avenue Marnix 17, B - 1000 Brussels 2009 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60793-2-20:2009 E ICS 33.1
6、80.10 Supersedes EN 60793-2-20:2002 English version Optical fibres - Part 2-20: Product specifications - Sectional specification for category A2 multimode fibres (IEC 60793-2-20:2007) Fibres optiques - Partie 2-20: Spcifications de produits - Spcification intermdiaire pour les fibres multimodales de
7、 catgorie A2 (CEI 60793-2-20:2007) Lichtwellenleiter - Teil 2-20: Produktspezifikationen - Rahmenspezifikation fr Mehrmodenfasern der Kategorie A2 (IEC 60793-2-20:2007) This European Standard was approved by CENELEC on 2009-04-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Reg
8、ulations 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. T
9、his 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 memb
10、ers 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, Sloven
11、ia, Spain, Sweden, Switzerland and the United Kingdom. BS EN 60793-2-20:2009 EN 60793-2-20:2009 Foreword The text of document 86A/1129/CDV, future edition 2 of IEC 60793-2-20, prepared by SC 86A, Fibres and cables, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC Parallel Unique Acceptan
12、ce Procedure and was approved by CENELEC as EN 60793-2-20 on 2009-04-01. This European Standard supersedes EN 60793-2-20:2002. The main changes from EN 60793-2-20:2002 are: the addition of tensile strength requirement; the removal of water immersion requirement; the addition of environmental require
13、ments. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2010-01-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2012-04-01 Ann
14、ex ZA has been added by CENELEC. _ Endorsement notice The text of the International Standard IEC 60793-2-20:2007 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following note has to be added for the standard indicated: IEC 6079
15、3-1-1 NOTE Harmonized as EN 60793-1-1:2008 (not modified). _ BS EN 60793-2-20:2009 1 2 EN 60793-2-20:2009 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following referenced documents are indispensable for the application of
16、 this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD app
17、lies. Publication Year Title EN/HD Year IEC 60793-1-20 - 1) Optical fibres - Part 1-20: Measurement methods and test procedures - Fibre geometry EN 60793-1-20 2002 2) IEC 60793-1-21 - 1) Optical fibres - Part 1-21: Measurement methods and test procedures - Coating geometry EN 60793-1-21 2002 2) IEC
18、60793-1-22 - 1) Optical fibres - Part 1-22: Measurement methods and test procedures - Length measurement EN 60793-1-22 2002 2) IEC 60793-1-30 - 1) Optical fibres - Part 1-30: Measurement methods and test procedures - Fibre proof test EN 60793-1-30 2002 2) IEC 60793-1-31 - 1) Optical fibres - Part 1-
19、31: Measurement methods and test procedures - Tensile strength EN 60793-1-31 2002 2) IEC 60793-1-40 (mod) - 1) Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation EN 60793-1-40 2003 2) IEC 60793-1-41 - 1) Optical fibres - Part 1-41: Measurement methods and test procedur
20、es - Bandwidth EN 60793-1-41 2003 2) IEC 60793-1-43 - 1) Optical fibres - Part 1-43: Measurement methods and test procedures - Numerical aperture EN 60793-1-43 2002 2) IEC 60793-1-46 - 1) Optical fibres - Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmitt
21、ance EN 60793-1-46 2002 2) IEC 60793-1-50 - 1) Optical fibres - Part 1-50: Measurement methods and test procedures - Damp heat (steady state) EN 60793-1-50 2002 2) IEC 60793-1-51 - 1) Optical fibres - Part 1-51: Measurement methods and test procedures - Dry heat EN 60793-1-51 2002 2) IEC 60793-1-52
22、- 1) Optical fibres - Part 1-52: Measurement methods and test procedures - Change of temperature EN 60793-1-52 2002 2) 1) Undated reference. 2) Valid edition at date of issue. BS EN 60793-2-20:2009 EN 60793-2-20:2009 3 Publication Year Title EN/HD Year IEC 60793-2 2003 Optical fibres - Part 2: Produ
23、ct specifications - General EN 60793-2 2004 3) IEC/TR 62048 - 1) Optical fibres - Reliability - Power law theory - - 3) EN 60793-2:2004 is superseded by EN 60793-2:2008, which is based on IEC 60793-2:2007. BS EN 60793-2-20:2009 4 60793-2-20 IEC:2007 CONTENTS 1Scope.5 2Normative references .5 3Specif
24、ications.6 3.1General.6 3.2Dimensional requirements .6 3.3Mechanical requirements.7 3.4Transmission requirements .7 3.5Environmental requirements8 Annex A (normative) Family specifications for A2a multimode fibres9 Annex B (normative) Family specifications for A2b multimode fibres11 Annex C (normati
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- BS EN 60793-2-20-2009 光学纤维.产品规范.类别A2多模光纤的分规范 60793 20 2009 光学 纤维 产品 规范 类别 A2 光纤
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