1、BSI Standards PublicationOptical fibre cablesPart 1-20: Generic specification Basic optical cable test procedures General and definitionsBS EN 60794-1-20:2014BS EN 60794-1-20:2014 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN 60794-1-20:2014. It is identical t
2、o IEC 60794-1-20:2014. Together with BS EN 60794-1-2:2014, BS EN 60794-1-21, BS EN 60794-1-22:2012, BS EN 60794-1-23:2012 and BS EN 60794-1-24, it supersedes BS EN 60794-1-2:2003, which will be withdrawn when all the parts listed above have been published.The UK participation in its preparation was
3、entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibres and cables.A list of organizations represented on this subcommittee can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a contract. Use
4、rs are responsible for its correct application. The British Standards Institution 2014. Published by BSI Standards Limited 2014ISBN 978 0 580 74245 3ICS 33.180.10Compliance with a British Standard cannot confer immunity from legal obligations.This British Standard was published under the authority o
5、f the Standards Policy and Strategy Committee on 31 May 2014.Amendments/corrigenda issued since publicationDate Text affectedEUROPEAN STANDARD EN 60794-1-20 NORME EUROPENNE EUROPISCHE NORM April 2014 CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Elect
6、rotechnique Europisches Komitee fr Elektrotechnische Normung CEN-CENELEC Management Centre: Avenue Marnix 17, B - 1000 Brussels 2014 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC members. Ref. No. EN 60794-1-20:2014 E ICS 33.180.10 Supersedes EN 607
7、94-1-2:2003 (partially) English version Optical fibre cables - Part 1-20: Generic specification - Basic optical cable test procedures - General and definitions (IEC 60794-1-20:2014) Cbles fibres optiques - Partie 1-20: Spcification gnrique - Procdures fondamentales dessais des cbles optiques - Gnral
8、its et dfinitions (CEI 60794-1-20:2014) Lichtwellenleiterkabel - Teil 1-20: Fachgrundspezifikation - Grundlegende Prfverfahren fr Lichtwellenleiterkabel - Grundlegendes und Definitionen (IEC 60794-1-20:2014) This European Standard was approved by CENELEC on 2014-02-21. CENELEC members are bound to c
9、omply 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 standards may be obtained on application to the CEN-CENE
10、LEC 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 language and notified to the CEN-CENELEC Management Centre
11、 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy,
12、 Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. BS EN 60794-1-20:2014EN 60794-1-20:2014 - 2 - Foreword The text of document 86A/1476/CDV, future edition 1 of IEC 60794-1-20, prep
13、ared 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 60794-1-20:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publication of an identical nationa
14、l standard or by endorsement (dop) 2014-11-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-02-21 This document supersedes EN 60794-1-2:2003 (PART). EN 60794-1-20:2014 includes the following significant technical changes with respect to EN
15、60794-1-2:2003: EN 60794-1-20:2014 cancels and replaces the general and guidance part of EN 60794-1-2:2003. This standard is intended to be used in conjunction with EN 60794-1-1. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN
16、ELEC 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 60794-1-20:2014 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following
17、 notes have to be added for the standards indicated: IEC 60068-2-14 NOTE Harmonized as EN 60068-2-14. IEC 60544 Series NOTE Harmonized in EN 60544 Series (not modified). IEC 60793-1-22 NOTE Harmonized as EN 60793-1-22. IEC 60793-1-32 NOTE Harmonized as EN 60793-1-32. IEC 60793-1-54 NOTE Harmonized a
18、s EN 60793-1-54. IEC 60794-1-2:2003 NOTE Harmonized as EN 60794-1-2:2003 (not modified). BS EN 60794-1-20:2014In the official version, for Bibliography, the following notes have to be added for the standards indicated:EN 60794-1-20:2014 - 2 - Foreword The text of document 86A/1476/CDV, future editio
19、n 1 of IEC 60794-1-20, 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 60794-1-20:2014. The following dates are fixed: latest date by which the document has to be implemented at national level by publicat
20、ion of an identical national standard or by endorsement (dop) 2014-11-21 latest date by which the national standards conflicting with the document have to be withdrawn (dow) 2017-02-21 This document supersedes EN 60794-1-2:2003 (PART). EN 60794-1-20:2014 includes the following significant technical
21、changes with respect to EN 60794-1-2:2003: EN 60794-1-20:2014 cancels and replaces the general and guidance part of EN 60794-1-2:2003. This standard is intended to be used in conjunction with EN 60794-1-1. Attention is drawn to the possibility that some of the elements of this document may be the su
22、bject 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 60794-1-20:2014 was approved by CENELEC as a European Standard without any modification. In the official version, for
23、Bibliography, the following notes have to be added for the standards indicated: IEC 60068-2-14 NOTE Harmonized as EN 60068-2-14. IEC 60544 Series NOTE Harmonized in EN 60544 Series (not modified). IEC 60793-1-22 NOTE Harmonized as EN 60793-1-22. IEC 60793-1-32 NOTE Harmonized as EN 60793-1-32. IEC 6
24、0793-1-54 NOTE Harmonized as EN 60793-1-54. IEC 60794-1-2:2003 NOTE Harmonized as EN 60794-1-2:2003 (not modified). BS EN 60794-1-20:2014- 3 - EN 60794-1-20:2014 Annex ZA (normative) Normative references to international publications with their corresponding European publications The following docum
25、ents, in whole or in part, are normatively 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 When an international
26、 publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60793-1 Series Optical fibres - Part 1: Measurement methods and test procedures EN 60793-1 Series IEC 60793-1-40 - Optical fibres - Part 1-40: Measurement met
27、hods and test procedures - Attenuation EN 60793-1-40 - IEC 60793-1-41 - Optical fibres - Part 1-41: Measurement methods and test procedures - Bandwidth EN 60793-1-41 - IEC 60793-1-46 - Optical fibres - Part 1-46: Measurement methods and test procedures - Monitoring of changes in optical transmittanc
28、e EN 60793-1-46 - IEC 60793-1-48 - Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion EN 60793-1-48 - IEC 60793-2 Series Optical fibres EN 60793-2 Series IEC 60793-2-10 - Optical fibres - Part 2-10: Product specifications - Sectional specification for
29、category A1 multimode fibres EN 60793-2-10 - IEC 60793-2-40 - Optical fibres - Part 40: Product specifications - Sectional specification for category A4 multimode fibres EN 60793-2-40 - IEC 60793-2-50 - Optical fibres - Part 2-50: Product specifications - Sectional specification for class B single-m
30、ode fibres EN 60793-2-50 - IEC 60794-1 Series Optical fibre cables - Part 1: Generic specification EN 60794-1 Series IEC 60794-1-1 - Optical fibre cables - Part 1-1: Generic specification - General EN 60794-1-1 - IEC 60794-1-2 2013 Optical fibre cables - Part 1-2: Generic specification - Cross refer
31、ence table for optical cable test procedures EN 60794-1-2 2014 IEC 60794-2 Series Optical fibre cables - Part 2: Indoor cables EN 60794-2 Series IEC 60794-3 Series Optical fibre cables - Part 3: Outdoor cables EN 60794-3 Series BS EN 60794-1-20:2014EN 60794-1-20:2014 - 4 - Publication Year Title EN/
32、HD Year IEC 60794-3-20 - Optical fibre cables - Part 3-20: Outdoor cables - Family specification for self-supporting aerial telecommunication cables EN 60794-3-20 - IEC 60794-4 - Optical fibre cables - Part 4: Sectional specification - Aerial optical cables along electrical power lines EN 60794-4 -
33、IEC 60794-5 - Optical fibre cables - Part 5: Sectional specification - Microduct cabling for installation by blowing EN 60794-5 - IEC/TR 61931 - Fibre optic - Terminology - - IEC/TR 62362 - Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic c
34、haracteristics - Guidance - - ISO/IEC Guide 98-3 - Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - - ISO/IEC Guide 99 - International vocabulary of metrology - Basic and general concepts and associated terms (VIM) - - ISO/IEC 11801 - Informatio
35、n technology - Generic cabling for customer premises - - BS EN 60794-1-20:2014EN 60794-1-20:2014 - 4 - Publication Year Title EN/HD Year IEC 60794-3-20 - Optical fibre cables - Part 3-20: Outdoor cables - Family specification for self-supporting aerial telecommunication cables EN 60794-3-20 - IEC 60
36、794-4 - Optical fibre cables - Part 4: Sectional specification - Aerial optical cables along electrical power lines EN 60794-4 - IEC 60794-5 - Optical fibre cables - Part 5: Sectional specification - Microduct cabling for installation by blowing EN 60794-5 - IEC/TR 61931 - Fibre optic - Terminology
37、- - IEC/TR 62362 - Selection of optical fibre cable specifications relative to mechanical, ingress, climatic or electromagnetic characteristics - Guidance - - ISO/IEC Guide 98-3 - Uncertainty of measurement - Part 3: Guide to the expression of uncertainty in measurement (GUM:1995) - - ISO/IEC Guide
38、99 - International vocabulary of metrology - Basic and general concepts and associated terms (VIM) - - ISO/IEC 11801 - Information technology - Generic cabling for customer premises - - BS EN 60794-1-20:2014 2 60794-1-20 IEC:2014 CONTENTS 1 Scope and object . 5 2 Normative references 5 3 Terms and d
39、efinitions 6 3.1 Common terms 6 3.2 Cable definitions 7 3.3 Ribbon definitions 7 4 General and guidance . 7 4.1 General 7 4.2 Test procedure format 7 4.3 Standard atmospheric conditions . 7 4.4 Standard test conditions 7 4.5 Expanded test conditions . 7 4.6 Graphical symbols and terminology 8 4.7 Sa
40、fety and environmental aspects 8 4.8 Calibration . 8 4.8.1 Calibration process . 8 4.8.2 Assessment of uncertainties . 8 4.9 Definition of “No change in attenuation” . 8 4.9.1 General 8 4.9.2 No change in attenuation, single-mode (class B) 9 4.9.3 No change in attenuation, multimode (category A1) 9
41、4.9.4 No change in attenuation, plastic optical fibre (category A4) . 9 4.9.5 Allowable change in attenuation during mechanical and environmental tests 9 4.10 Definition of “No change in fibre strain” 9 4.10.1 General 9 4.10.2 Allowable change in fibre strain during mechanical and environmental test
42、s 10 4.11 Preconditioning 10 4.12 Cable load definitions 10 4.13 Recovery time 10 4.14 Cable qualification test plan . 10 5 Test procedures 11 6 Test methods and cross references . 11 Annex A (normative) Optical launch conditions 12 Bibliography 13 Table 1 Test methods Cross reference 11 BS EN 60794
43、-1-20:201460794-1-20 IEC:2014 5 OPTICAL FIBRE CABLES Part 1-20: Generic specification Basic optical cable test procedures General and definitions 1 Scope and object This part of IEC 60794 applies to optical fibre cables for use with telecommunication equipment and devices employing similar technique
44、s, and to cables having a combination of both optical fibres and electrical conductors. The object of this standard is to define test procedures to be used in establishing uniform requirements for the geometrical, transmission, material, mechanical, ageing (environmental exposure) and climatic prope
45、rties of optical fibre cables, and electrical requirements where appropriate. Throughout this standard the wording “optical cable” may also include optical fibre units, microduct fibre units, etc. 2 Normative references The following documents, in whole or in part, are normatively referenced in this
46、 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. IEC 60793-1 (all parts 1), Optical fibres Measurement methods and test procedures IEC 6
47、0793-1-40, Optical fibres Measurement methods and test procedures Attenuation IEC 60793-1-41, Optical fibres Part 1-41: Measurement methods and test procedures Bandwidth IEC 60793-1-46, Optical fibres: Measurement methods and test procedures Monitoring of changes in optical transmittance IEC 60793-1
48、-48, Optical fibres Part 1-48: Measurement methods and test procedures Polarization mode dispersion IEC 60793-2 (all parts), Optical fibres IEC 60793-2-10, Optical fibres Part 2-10: Product specifications Sectional specification for category A1 multimode fibres IEC 60793-2-40, Optical fibres Part 2-
49、10: Product specifications Sectional specification for category A4 multimode fibres IEC 60793-2-50, Optical fibres Part 2-10: Product specifications Sectional specification for class B single-mode fibres IEC 60794-1 (all parts), Optical fibre cables Part 1: Generic specification BS EN 60794-1-20:201460794-1-20 IEC:2014 5 OPTICAL FIBRE CABLES Part 1-20: Generic specification Basic optical cable test procedures General and definitions 1 Scope and object This part of IEC 60794 applies to optica
