IEC 60794-2-50-2008 Optical fibre cables - Part 2-50 Indoor cables - Family specification for simplex and duplex cables for use in terminated cable assemblies《光.pdf

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1、 IEC 60794-2-50 Edition 1.0 2008-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 2-50: Indoor cables Family specification for simplex and duplex cables for use in terminated cable assemblies Cbles fibres optiques Partie 2-50: Cbles intrieurs Spcification de famille pour les

2、cbles simplex et duplex utiliss dans les ensembles de cbles quips IEC 60794-2-50:2008 THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2008 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

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16、es sur cette publication ou si vous avez des questions, visitez le FAQ du Service clients ou contactez-nous: Email: csciec.ch Tl.: +41 22 919 02 11 Fax: +41 22 919 03 00 IEC 60794-2-50 Edition 1.0 2008-04 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 2-50: Indoor cables Famil

17、y specification for simplex and duplex cables for use in terminated cable assemblies Cbles fibres optiques Partie 2-50: Cbles intrieurs Spcification de famille pour les cbles simplex et duplex utiliss dans les ensembles de cbles quips INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHN

18、IQUE INTERNATIONALE V ICS 33.180.10 PRICE CODE CODE PRIX ISBN 2-8318-9902-8 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale 2 60794-2-50 IEC:2008 CONTENTS FOREWORD.4 1 Scope.6 2 Normative references .6 3 Terms and de

19、finitions .7 4 Construction.7 4.1 General .7 4.2 Optical fibres and primary coating .7 4.3 Buffer 7 4.4 Tube8 4.5 Strength and anti-buckling members .8 4.6 Sheath 8 4.7 Sheath marking .8 4.8 Examples of cable constructions .8 5 Tests8 5.1 Dimensions .9 5.2 Mechanical requirements.9 5.2.1 Tensile per

20、formance9 5.2.2 Crush 9 5.2.3 Impact .10 5.2.4 Repeated bending .10 5.2.5 Bend10 5.2.6 Torsion11 5.2.7 Bend at low temperature11 5.2.8 Kink.11 5.2.9 Sheath pull-off force 11 5.2.10 Buffered fibre movement in compression .12 5.3 Environmental requirements12 5.3.1 Temperature cycling 12 5.3.2 Sheath s

21、hrinkage.13 5.4 Transmission requirements .13 5.5 Fire performance.13 Annex A (informative) Examples of some types of cable construction 14 Annex B (normative) METHOD E21 Sheath pull-off force for optical fibre cable for use in patch cords 17 Annex C (normative) METHOD F11 Sheath shrinkage for optic

22、al fibre cable for use in patchcords 22 Annex D (normative) METHOD E22 Buffered fibre movement under compression in optical fibre cables for use in patchcords 24 Annex E (normative) METHOD F12 Temperature cycling for optical fibre cable for use in patchcords .26 Annex F (normative) Guidance on the s

23、election of tests applicable to optical fibre cables for use in patchcords .28 Bibliography31 Figure A.1 Simplex loose non-buffered fibre cable .14 60794-2-50 IEC:2008 3 Figure A.2 Simplex ruggedized fibre cable .14 Figure A.3 Duplex loose non-buffered fibre cable.14 Figure A.4 Duplex ruggedized fib

24、re cable.15 Figure A.5 Duplex ruggedized fibre zip cord.15 Figure A.6 Duplex ruggedized flat cable.15 Figure A.7 Duplex ruggedized round cable.16 Figure B.1 Schematic of test arrangement .19 Figure B.2 Example of pulling jig20 Figure B.3 Cable sample preparation .21 Figure D.1 Test set up for fibre

25、movement under compression.25 Table 1 Dimensions of buffered fibres8 Table 2 Temperature cycling severities12 Table F.1 Cable test method summary.28 Table F.2 Cable testing agreement 30 4 60794-2-50 IEC:2008 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES Part 2-50: Indoor cables Fa

26、mily specification for simplex and duplex cables for use in terminated cable assemblies 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

27、to promote 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

28、Guides (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

29、IEC also 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 a

30、s possible, 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 sen

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32、ertake 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 provides no marking procedure

33、to indicate its approval and cannot be rendered responsible for any equipment declared to be in conformity with an IEC Publication. 6) All users should ensure that they have the latest edition of this publication. 7) No liability shall attach to IEC or its directors, employees, servants or agents in

34、cluding 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 indirect, or for costs (including legal fees) and expenses arising out of the publication, use of, or re

35、liance 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 for the correct application of this publication. 9) Attention is drawn to the possibility that some of the

36、 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 60794-2-50 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. This st

37、andard cancels and replaces IEC/PAS 60794-2-50 published in 2004. This first edition constitutes a technical revision. This standard is to be used in conjunction with IEC 60794-1-1, IEC 60794-1-2 and IEC 60794-2. This bilingual version, published in 2008-07, corresponds to the English version. 60794

38、-2-50 IEC:2008 5 The text of this standard is based on the following documents: FDIS Report on voting 86A/1204/FDIS 86A/1223/RVD Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table. The French version of this standard has

39、 not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives, Part 2. A list of all parts of IEC 60794 series, under the general title Optical fibre cables, can be found on the IEC website. The committee has decided that the contents of this publication will rema

40、in unchanged until the maintenance result 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 edition, or amended. 6 60794-2-50 IEC:2008 OPTICAL FIBRE CAB

41、LES Part 2-50: Indoor cables Family specification for simplex and duplex cables for use in terminated cable assemblies 1 Scope This part of IEC 60794 is a family specification that covers requirements for simplex and duplex optical fibre cables for use in terminated cable assemblies or for terminati

42、on with optical fibre passive components. 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 of the referenced document (including any amend

43、ments) applies. They complete the normative references already listed in the generic specification (IEC 60794-1-1 and IEC 60794-1-2) or in the sectional specification (IEC 60794-2 series). IEC 60068-2-14, Environmental testing Part 2: Tests. Test N: Change of temperature IEC 60189-1, Low-frequency c

44、ables and wires with PVC insulation and PVC sheath Part 1: General test and measuring methods IEC 60793-1-1:2008, Optical fibres Part 1-1: Measurement methods and test procedures General and guidance IEC 60793-1-20, Optical fibres Part 1-20: Measurement methods and test procedures Fibre geometry IEC

45、 60793-1-21, Optical fibres Part 1-21: Measurement methods and test procedures Coating geometry 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 opt

46、ical transmittance IEC 60793-2-10, Optical fibres Part 2-10: Product specifications Sectional specification for category A1 multimode fibres IEC 60793-2-50, Optical fibres Part 2-50: Product specifications Sectional specification for class B single-mode fibres IEC 60794-1-1, Optical fibre cables Par

47、t 1-1: Generic specification General IEC 60794-1-2:2003, Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures 60794-2-50 IEC:2008 7 IEC 60794-2, Optical fibre cables Part 2: Indoor cables Sectional specification IEC 60811-1-3, Common test methods for insulating an

48、d sheathing materials of electric and optical cables Part 1-3: General application Methods for determining the density Water absorption tests Shrinkage test IEC 60811-1-4:1985, Common test methods for insulating and sheathing materials of electric cables Part 1: Methods for general application Secti

49、on Four: Tests at low temperature Amendment 1 (1993) Amendment 2 (2001) ISO/IEC 11801, Information technology Generic cabling for customer premises 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 terminated cable assembly short length of cable provis