1、 IEC 60794-1-2 Edition 4.0 2017-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures General guidance Cbles fibres optiques Partie 1-2: Spcification gnrique Procdures fondamentales dessais des cbles optiques Lignes di
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19、ec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60794-1-2 Edition 4.0 2017-01 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures
20、General guidance Cbles fibres optiques Partie 1-2: Spcification gnrique Procdures fondamentales dessais des cbles optiques Lignes directrices gnrales INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 33.180.10 ISBN 978-2-8322-3815-8 Registered trademark of the
21、International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. 2 IEC 60794-1
22、-2:2017 IEC 2017 CONTENTS FOREWORD . 3 INTRODUCTION . 5 1 Scope 6 2 Normative references 6 3 Terms and definitions 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
23、4.5.1 Calibration process 8 4.5.2 Assessment of uncertainties 1 . 8 4.6 Preconditioning . 8 4.7 Guide to qualification 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 IE
24、C 60794-1-2:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES Part 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
25、 all national electrotechnical committees (IEC National Committees). The object of IEC is 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,
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31、ublication shall be clearly indicated in the latter. 5) IEC itself does not provide any attestation 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 ind
32、ependent certification bodies. 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 including individual experts and members of its technical committees and IEC National Committees for an
33、y 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 reliance upon, this IEC Publication or any other IEC Publications. 8) Attention is drawn to the Normati
34、ve 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 elements of this IEC Publication may be the subject of patent rights. IEC shall not be held responsi
35、ble for identifying any or all such patent rights. International Standard IEC 60794-1-2 has been 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
36、2014. This edition constitutes a technical revision. This edition includes the following significant 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 stan
37、dards; b) all pertinent text from IEC 60794-1-20 has been included; c) standard optical test wavelengths have been introduced; d) this document has been streamlined by cross-referencing IEC 60794-1-1; 4 IEC 60794-1-2:2017 IEC 2017 e) the “No change in attenuation“ definitions contained in IEC 60794-
38、1-20 have been transferred to IEC 60794-1-1; f) the title has been modified 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
39、 86A/1775/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. 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 gene
40、ral title Optical fibre cables, can be found on the IEC website. The committee 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, t
41、he publication will be reconfirmed, withdrawn, replaced by a revised edition, or amended. IEC 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
42、been combined in this document, which allows for IEC 60794-1-20 to be withdrawn. 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 telec
43、ommunications equipment and devices 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 numbe
44、red -2X. Table 1 shows the different 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
45、in the test method numbering sequence 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
46、, mechanical, ageing (environmental 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 docume
47、nt is to provide the end user with 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 app
48、lies. For undated references, the 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 o
49、f changes in optical transmittance IEC 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 document, the terms and definitions given in IEC 60794-1-1
