1、 IEC 60794-5 Edition 2.0 2014-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 5: Sectional specification Microduct cabling for installation by blowing Cbles fibres optiques Partie 5: Spcification intermdiaire Cblage en micro-conduits pour installation par soufflage IEC 60794
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19、store.iec.ch/csc Si vous dsirez nous donner des commentaires sur cette publication ou si vous avez des questions contactez-nous: csciec.ch. IEC 60794-5 Edition 2.0 2014-10 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 5: Sectional specification Microduct cabling for installat
20、ion by blowing Cbles fibres optiques Partie 5: Spcification intermdiaire Cblage en micro-conduits pour installation par soufflage INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE L ICS 33.180.10 PRICE CODE CODE PRIX ISBN 978-2-8322-1877-8 Registered trademark of t
21、he 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 6079
22、4-5:2014 IEC 2014 CONTENTS FOREWORD . 3 1 Scope 5 2 Normative references 5 3 Terms, definitions, symbols and abbreviations . 5 4 Construction 6 4.1 General . 6 4.2 Optical fibre 6 General . 6 4.2.1Attenuation 6 4.2.2Cut-off wavelength . 6 4.2.3Fibre colouring. 6 4.2.4Polarization mode dispersion (PM
23、D) 6 4.2.5 4.3 Microduct 6 4.4 Protected microduct 7 4.5 Microduct optical fibre cables 7 4.6 Microduct fibre units 7 4.7 Marking . 8 5 Installation and operating conditions 8 5.1 General . 8 5.2 Installation conditions . 8 5.3 Operating conditions . 8 6 Quality assurance 8 Annex A (informative) Mic
24、roduct fittings 10 Bibliography 11 IEC 60794-5:2014 IEC 2014 3 INTERNATIONAL ELECTROTECHNICAL COMMISSION _ OPTICAL FIBRE CABLES Part 5: Sectional specification Microduct cabling for installation by blowing FOREWORD 1) The International Electrotechnical Commission (IEC) is a worldwide organization fo
25、r 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 and electronic fields. To this end and in addition to other activities, IEC publis
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34、tion 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 elements of this IEC Publication may be the subject of patent rights. IE
35、C shall not be held responsible for identifying any or all such patent rights. International Standard IEC 60794-5 has been prepared by subcommittee 86A Fibres and cables, of IEC technical committee 86: Fibre optics. This second edition cancels and replaces the first edition, published in 2006, and c
36、onstitutes a technical revision. This edition includes the following significant technical changes with respect to the previous edition: the addition of constructional requirements, including a reference to IEC 60794-3 for microduct optical fibre cables; the specification has been streamlined by cro
37、ss-referencing IEC 60794-1-1. 4 IEC 60794-5:2014 IEC 2014 The text of this standard is based on the following documents: CDV Report on voting 86A/1588/CDV 86A/1620/RVC Full information on the voting for the approval of this standard can be found in the report on voting indicated in the above table.
38、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 general title Optical fibre cables, can be found on the IEC website. The committee has decided that the contents of this publication will remain uncha
39、nged until the stability date indicated on the IEC website 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. IEC 60794-5:2014 IEC 2014 5 OPTICAL FIBRE CABLES Part 5:
40、Sectional specification Microduct cabling for installation by blowing 1 Scope This part of IEC 60794, which is a sectional specification, specifies the requirements of microduct optical fibre cables, microduct fibre units, microducts and protected microducts for installation by blowing for outdoor a
41、nd/or indoor use. The microduct optical fibre cables and microduct fibre units utilize the structure of the microduct or protected microducts to support installation and to provide protection over the design lifetime. These products may be used for applications such as communication and transmission
42、 networks, transmission, telephone and data processing equipment, control and monitoring applications. The cabling structures described in this sectional specification are uniquely designed to facilitate and take advantage of installation by blowing into microducts. IEC TR 62839-1 gives rules to bui
43、ld an environmental declaration, if needed. 2 Normative references The following documents, 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
44、the referenced document (including any amendments) applies. IEC 60304, Standard colours for insulation for low-frequency cables and wires IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test procedures Attenuation IEC 60793-1-44, Optical fibres Part 1-44: Measurement methods and te
45、st procedures Cut- off wavelength IEC 60793-2, Optical fibres Part 2: Product specifications General IEC 60794-1-1, Optical fibre cables Part 1-1: Generic specification General IEC 60794-3, Optical fibre cables Part 3: Outdoor optical fibre cables Sectional specification 3 Terms, definitions, symbol
46、s and abbreviations For the purposes of this document, the terms, definitions, symbols and abbreviations are given in IEC 60794-1-1. 6 IEC 60794-5:2014 IEC 2014 4 Construction 4.1 General The intent is that the microduct optical fibre cables, microduct fibre units, microducts and protected microduct
47、s shall be designed and manufactured for a predicted operating lifetime of at least 20 years. The tests of this specification are intended to assess the performance of cables as manufactured and under agreed ageing and performance-limit tests. These tests are not intended to define end-of-life perfo
48、rmance, but may be used as agreed between the customer and the supplier to predict such performance. It shall be possible to install or remove the microduct optical fibre cable or microduct fibre unit in or from the microducts by blowing during the operational lifetime. When considering recovering a
49、 product for potential re-use, care shall be taken to minimize stress on the product and that the product is carefully handled and packaged in accordance with the suppliers guidelines. Good practice would also indicate that all products are appropriately tested if re-deployed. The materials in the microduct optical fibre cable, microduct fibre unit, microduct or protected microduct shall not prese
