IEC 60794-3-11-2010 Optical fibre cables - Part 3-11 Outdoor cables - Product specification for duct directly buried and lashed aerial single-mode optical fibre.pdf

1、 IEC 60794-3-11 Edition 2.0 2010-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 3-11: Outdoor cables Product specification for duct, directly buried, and lashed aerial single-mode optical fibre telecommunication cables Cbles fibres optiques Partie 3-11: Cbles extrieurs Spci

2、fication de produit pour les cbles de tlcommunication fibres optiques unimodales, destins tre installs dans des conduites, directement enterrs et en ariens ligaturs IEC 60794-3-11:2010 colour inside THIS PUBLICATION IS COPYRIGHT PROTECTED Copyright 2010 IEC, Geneva, Switzerland All rights reserved.

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17、ition 2.0 2010-06 INTERNATIONAL STANDARD NORME INTERNATIONALE Optical fibre cables Part 3-11: Outdoor cables Product specification for duct, directly buried, and lashed aerial single-mode optical fibre telecommunication cables Cbles fibres optiques Partie 3-11: Cbles extrieurs Spcification de produi

18、t pour les cbles de tlcommunication fibres optiques unimodales, destins tre installs dans des conduites, directement enterrs et en ariens ligaturs INTERNATIONAL ELECTROTECHNICAL COMMISSION COMMISSION ELECTROTECHNIQUE INTERNATIONALE U ICS 33.180.10 PRICE CODE CODE PRIX ISBN 978-2-88910-974-6 Register

19、ed trademark of the International Electrotechnical Commission Marque dpose de la Commission Electrotechnique Internationale colour inside 2 60794-3-11 IEC:2010 CONTENTS FOREWORD. 4 1 Scope 6 2 Normative references . 6 3 Terms, definitions and symbols . 7 3.1 Terms and definitions 7 3.2 Symbols 7 4 G

20、eneral information 7 4.1 Overview . 7 4.2 General cable description 7 4.2.1 Characteristics of optical fibre 7 4.2.2 Characteristics of optical fibre cable elements 8 4.2.3 Characteristics of optical fibre cables . 8 4.2.4 Environmental and product safety requirements 8 4.3 Optical fibre splice-abil

21、ity . 8 4.4 Testing 9 4.4.1 General . 9 4.4.2 No change in attenuation . 9 4.4.3 No change in fibre strain 9 5 Requirements for cabled single-mode optical fibres . 9 5.1 Fibre materials 9 5.2 Optical requirements 10 5.2.1 General . 10 5.2.2 Attenuation coefficient 10 5.2.3 Attenuation discontinuitie

22、s 11 5.2.4 Cable cut-off wavelength 11 5.2.5 Polarization mode dispersion (PMD) . 11 5.2.6 Group index . 12 6 Requirements for cable elements 12 6.1 Element design 12 6.1.1 General . 12 6.1.2 Modularity 12 6.1.3 Fibre and element identification 12 6.2 Element characteristics 13 6.2.1 Ribbon . 13 6.2

23、.2 Tube kinking 13 7 Requirements for optical cables 14 7.1 Cable construction . 14 7.1.1 General . 14 7.1.2 Cable core . 14 7.1.3 Anti-buckling and strength element splicing 14 7.1.4 Cable element stranding 14 7.1.5 Spliced fibres . 14 7.1.6 Spare fibres . 14 7.1.7 Cable sheath removal 15 7.1.8 Arm

24、ouring 15 60794-3-11 IEC:2010 3 7.2 Marking . 15 7.2.1 Sheath marking 15 7.2.2 Identification marking . 15 7.2.3 Cable length marking . 16 7.3 Cable core materials 16 7.3.1 Tube filling compound material (if required) 16 7.3.2 Water-blocking material 16 7.3.3 Cable material compatibility . 16 7.3.4

25、Tube material . 16 7.4 Cable sheath . 17 7.4.1 Sheath material 17 7.4.2 Sheath thickness . 17 7.4.3 Outer cable diameter 17 7.4.4 Moisture barrier . 17 7.4.5 Rodent resistant barrier 17 7.5 Mechanical requirements . 17 7.5.1 General . 17 7.5.2 Bend 17 7.5.3 Impact . 18 7.5.4 Crush 18 7.5.5 Tensile p

26、erformance 19 7.5.6 Torsion 20 7.5.7 Repeated bending 20 7.6 Environmental requirements 21 7.6.1 Temperature cycling . 21 7.6.2 Stripping force stability of cabled optical fibres . 22 7.6.3 Water penetration 23 7.6.4 Environmental impact . 23 7.7 Electrical protection . 23 8 Quality assurance . 23 A

27、nnex A (informative) Guidance for ITU-T and IEC cabled fibre and fibre references . 24 Annex B (informative) Fibres 25 Bibliography . 27 Figure 1 For all cycles except last 21 Figure 2 Last cycle . 21 Table 1 Requirements for the attenuation coefficient of cabled fibre 10 Table 2 Colour for individu

28、al fibres or units (listed alphabetically) 12 Table A.1 ITU-T 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 IEC also participate in this preparation. IEC coll

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35、 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 Normative references cited in this publication. Use of the referenced publications is indispensable for the correct application of this publication

36、. 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 responsible for identifying any or all such patent rights. International Standard IEC 60794-3-11 has been prepared by subcommittee 86A: Fibres and c

37、ables, of IEC technical committee 86: Fibre optics. This second edition cancels and replaces the first edition published in 2007. It constitutes a technical revision. The main changes with respect to the previous edition are as follows: the title of the specification has been updated to include lash

38、ed applications; the fibres specification clause (subclause 5.2.2) has been enlarged to include fibre types B6_a. 60794-3-11 IEC:2010 5 This bilingual version, published in 2011-04, corresponds to the English version. The text of this standard is based on the following documents: FDIS Report on voti

39、ng 86A/1314/FDIS 86A/1326/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 not been voted upon. This publication has been drafted in accordance with the ISO/IEC Directives,

40、Part 2. A list of all parts of 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 unchanged until the stability date indicated on the IEC web site under “http:/webstore

41、.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. IMPORTANT The colour inside logo on the cover page of this publication indicates that it contains colours which are considered to be usef

42、ul for the correct understanding of its contents. Users should therefore print this document using a colour printer. 6 60794-3-11 IEC:2010 OPTICAL FIBRE CABLES Part 3-11: Outdoor cables Product specification for duct, directly buried, and lashed aerial single-mode optical fibre telecommunication cab

43、les 1 Scope This part of IEC 60794 sets forth technical requirements and characteristics of single-mode optical fibre cables for duct and direct buried installation. This specification includes functional mechanical, environmental and optical requirements, recommended features and test methods for a

44、ssessing the product against the stated requirements. The specified test methods, where applicable, are those referenced in IEC 60794-1-1 and described in detail in IEC 60794-1-2. The requirements of this specification supplement those of IEC 60794-3 and IEC 60794-3-10 Multimode fibre requirements a

45、re not addressed in this standard; see IEC 60794-3-12. 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 (includ

46、ing any amendments) applies. IEC 60708, Low-frequency cables with polyolefin insulation and moisture barrier polyolefin sheath IEC 60793-1-22, Optical fibres Part 1-22: Measurement methods and test procedures Length measurement IEC 60793-1-40, Optical fibres Part 1-40: Measurement methods and test p

47、rocedures Attenuation IEC 60793-1-44, Optical fibres Part 1-44: Measurement methods and test procedures Cut- off wavelength IEC 60793-1-48, Optical fibres Part 1-48: Measurement methods and test procedures Polarization mode dispersion IEC 60793-2-50, Optical fibres Part 2-50: Product specifications

48、Sectional specification for class B single-mode fibres IEC 60794-1-1, Optical fibre cables Part 1-1: Generic specification General IEC 60794-1-2, Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures IEC 60794-3 (all parts), Optical fibre cables Part 3: Sectional specification Outdoor cables