1、 IEC 60794-2 Edition 4.0 2017-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 2: Indoor cables Sectional specification Cbles fibres optiques Partie 2: Cbles intrieurs Spcification intermdiaire IEC 60794-2:2017-06(en-fr) colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED C
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19、vez des questions contactez-nous: csciec.ch. IEC 60794-2 Edition 4.0 2017-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 2: Indoor cables Sectional specification Cbles fibres optiques Partie 2: Cbles intrieurs Spcification intermdiaire INTERNATIONAL ELECTROTECHNICAL COMMISS
20、ION COMMISSION ELECTROTECHNIQUE INTERNATIONALE ICS 33.180.10 ISBN 978-2-8322-4504-0 Registered trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale Warning! Make sure that you obtained this publication from an authorized distributor
21、. Attention! Veuillez vous assurer que vous avez obtenu cette publication via un distributeur agr. colour inside 2 IEC 60794-2:2017 IEC 2017 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 3 Terms, definitions, symbols and abbreviated terms 6 4 Optical fibres . 6 4.1 General . 6 4.2 Transmi
22、ssion requirements . 6 5 Cable elements and cable construction 6 5.1 General . 6 5.2 Buffer 7 5.3 Ruggedized fibre element . 7 5.4 Polymeric tube 7 5.5 Ribbon structure . 7 5.6 Slotted core 7 5.7 Strength and anti-buckling members . 7 5.8 Electrical conductors . 8 5.9 Lay-up of the cable elements 8
23、5.10 Ripcord . 8 5.11 Sheath 8 5.12 Sheath marking . 8 5.13 Identification . 8 5.13.1 General . 8 5.13.2 Fibre identification . 9 5.13.3 Unit colour coding 9 5.13.4 Sheath colour coding . 9 5.14 Examples of cable constructions . 10 6 Installation and operating conditions 10 7 Tests . 10 7.1 General
24、. 10 7.2 Characterization of cable elements . 10 7.3 Optical fibre cable tests 11 7.4 Fire performance 12 8 Packaging . 13 9 Quality assurance 13 Bibliography 14 Table 1 Colour coding scheme for units in hybrid or composite cables (example) 9 Table 2 Colour coding of cable outer sheaths (example) 10
25、 Table 3 Characteristic of different types of cable elements . 11 Table 4 Mechanical, environmental, electrical and dimensional applicable tests 12 IEC 60794-2:2017 IEC 2017 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES Part 2: Indoor cables Sectional specification FOREWORD 1) T
26、he International Electrotechnical Commission (IEC) is a worldwide organization for standardization comprising 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 a
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34、gents including 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 o
35、f, or reliance 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 som
36、e of the 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 has been prepared by subcommittee 86A: Fibres and cables, of IEC technical committee 86: Fibre optics. Th
37、is fourth edition cancels and replaces the third edition published in 2002. This edition constitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: a) the specification has been streamlined by cross-referencing with IEC 6
38、0794-1-1 and IEC TR 61931; b) the document structure has been aligned with IEC 60794-3, and Clause 4 on optical fibres was added; c) transmission requirements in Clause 4 were added; 4 IEC 60794-2:2017 IEC 2017 d) the electrical conductors and the lay-up of the cable elements were introduced into Ar
39、ticle 5 on cable elements and construction; e) 5.13 on identification was separated in fibre, unit and sheath colour coding; f) the colour coding proposals were extended to accommodate latest fibre categories; g) Article 6 on installation and operating condition was added; h) cable element tests and
40、 cable tests have been simplified by the use of tables instead of text; i) a bibliography has been added. The text of this International Standard is based on the following documents: FDIS Report on voting 86A/1793/FDIS 86A/1805/RVD Full information on the voting for the approval of this Internationa
41、l Standard can be found in the report on voting indicated in the above table. This document 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 general title Optical fibre cables, can be found on the IEC website. The co
42、mmittee has decided that the contents of this document will remain unchanged until the stability date indicated on the IEC website under “http:/webstore.iec.ch“ in the data related to the specific document. At this date, the document will be reconfirmed, withdrawn, replaced by a revised edition, or
43、amended. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be useful for the correct understanding of its contents. Users should therefore print this document using a colour printer. IEC 60794-2:2017 IEC 2017 5 OPTICAL F
44、IBRE CABLES Part 2: Indoor cables Sectional specification 1 Scope This part of IEC 60794 is a sectional specification. It gives the requirements that apply to optical fibre cables for indoor use in communications networks. Other types of applications requiring similar types of cables can be consider
45、ed. 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 applies. For undated references, the latest edition of the referenced document (inclu
46、ding any amendments) applies. IEC 60304, Standard colours for insulation for low-frequency cables and wire IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-2, Optical fibres Part 2: Product specifications General IEC 60793-2-10:2015, Optical fib
47、res 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 60794-1-1:2015, Optical fibre cables Part 1-1: Generic specification General IEC
48、60794-1-21, Optical fibre cables Part 1-21: Generic specification Basic optical cable test procedures Mechanical tests methods IEC 60794-1-22, Optical fibre cables Part 1-22: Generic specification Basic optical cable test procedures Environmental test methods IEC 60794-1-23, Optical fibre cables Par
49、t 1-23: Generic specification Basic optical cable test procedures Cable element test methods IEC 60794-1-24, Optical fibre cables Part 1-24: Generic specification Basic optical cable test procedures Electrical test methods IEC 60794-2 (all parts), Optical fibre cables Part 2: Indoor cables IEC 60811-202, Electric and optical fibre cables Test methods for non-metalli
