1、raising standards worldwideNO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBSI Standards PublicationBS EN 60794-3-11:2010Optical fibre cablesPart 3-11: Outdoor cables Productspecification for duct, directly buried andlashed aerial single-mode optical fibretelecommunication cabl
2、esBS EN 60794-3-11:2010 BRITISH STANDARDNational forewordThis British Standard is the UK implementation of EN60794-3-11:2010. It is identical to IEC 60794-3-11:2010.The UK participation in its preparation was entrusted to TechnicalCommittee GEL/86/1, Optical fibres and cables.A list of organizations
3、 represented on this committee can beobtained on request to its secretary.This publication does not purport to include all the necessaryprovisions of a contract. Users are responsible for its correctapplication. BSI 2010 ISBN 978 0 580 66571 4 ICS 33.180.10 Compliance with a British Standard cannot
4、confer immunity fromlegal obligations.This British Standard was published under the authority of theStandards Policy and Strategy Committee on 30 September 2010. Amendments issued since publicationDate T e x t a f f e c t e dEUROPEAN STANDARD EN 60794-3-11 NORME EUROPENNE EUROPISCHE NORM July 2010 C
5、ENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Management Centre: Avenue Marnix 17, B - 1000 Brussels 2010 CENELEC - All rights of exploitation in any form and by any means reserved world
6、wide for CENELEC members. Ref. No. EN 60794-3-11:2010 E ICS 33.180.10 English version Optical fibre cables - Part 3-11: Outdoor cables - Product specification for duct, directly buried and lashed aerial single-mode optical fibre telecommunication cables (IEC 60794-3-11:2010) Cbles fibres optiques -
7、Partie 3-11: Cbles extrieurs - Spcification de produits pour les cbles de tlcommunication fibres optiques unimodales destins tre installs dans des conduites, tre directement enterrs et tre attachs en arien (CEI 60794-3-11:2010) Lichtwellenleiterkabel - Teil 3-11: Auenkabel - Bauartspezifikation fr E
8、inmoden-LWL-Fernmeldeluftkabel fr Rhren- und direkte Erdverlegung sowie zur Befestigung an Freileitungen oder Seilen (IEC 60794-3-11:2010) This European Standard was approved by CENELEC on 2010-07-01. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the c
9、onditions 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 Central Secretariat or to any CENELEC member. This European Standard exists i
10、n 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 Central Secretariat has the same status as the official versions. CENELEC members are the national electrote
11、chnical committees of Austria, Belgium, Bulgaria, Croatia, Cyprus, the Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Sw
12、itzerland and the United Kingdom. BS EN 60794-3-11:2010EN 60794-3-11:2010 - 2 - Foreword The text of document 86A/1314/FDIS, future edition 2 of IEC 60794-3-11, prepared by SC 86A, Fibres and cables, of IEC TC 86, Fibre optics, was submitted to the IEC-CENELEC parallel vote and was approved by CENEL
13、EC as EN 60794-3-11 on 2010-07-01. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and CENELEC shall not be held responsible for identifying any or all such patent rights. The following dates were fixed: latest date by which t
14、he EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2011-04-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2013-07-01 Annex ZA has been added by CENELEC. _ Endorsement notice The tex
15、t of the International Standard IEC 60794-3-11 was approved by CENELEC as a European Standard without any modification. In the official version, for Bibliography, the following notes have to be added for the standards indicated: IEC 60793-1 series NOTE Harmonized in EN 60793-1 series (partially modi
16、fied). IEC 60793-1-20 NOTE Harmonized as EN 60793-1-20. IEC 60793-1-21 NOTE Harmonized as EN 60793-1-21. IEC 60793-1-30 NOTE Harmonized as EN 60793-1-30. IEC 60793-1-31 NOTE Harmonized as EN 60793-1-31. IEC 60793-1-32 NOTE Harmonized as EN 60793-1-32. IEC 60793-1-33 NOTE Harmonized as EN 60793-1-33.
17、 IEC 60793-1-34 NOTE Harmonized as EN 60793-1-34. IEC 60793-1-42 NOTE Harmonized as EN 60793-1-42. IEC 60793-1-45 NOTE Harmonized as EN 60793-1-45. IEC 60793-1-46 NOTE Harmonized as EN 60793-1-46. IEC 60793-1-47 NOTE Harmonized as EN 60793-1-47. IEC 60793-1-50 NOTE Harmonized as EN 60793-1-50. IEC 6
18、0793-1-51 NOTE Harmonized as EN 60793-1-51. IEC 60793-1-52 NOTE Harmonized as EN 60793-1-52. IEC 60793-1-53 NOTE Harmonized as EN 60793-1-53. IEC 60793-2 NOTE Harmonized as EN 60793-2. IEC 60794-3-12 NOTE Harmonized as EN 60794-3-12. _ BS EN 60794-3-11:2010- 3 - EN 60794-3-11:2010 Annex ZA (normativ
19、e) Normative references to international publications with their corresponding European publications 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 refe
20、renced document (including any amendments) applies. NOTE When an international publication has been modified by common modifications, indicated by (mod), the relevant EN/HD applies. Publication Year Title EN/HD Year IEC 60708 - Low-frequency cables with polyolefin insulation and moisture barrier pol
21、yolefin sheath EN 60708 - IEC 60793-1-22 - Optical fibres - Part 1-22: Measurement methods and test procedures - Length measurement EN 60793-1-22 - IEC 60793-1-40 (mod) - Optical fibres - Part 1-40: Measurement methods and test procedures - Attenuation EN 60793-1-40 - IEC 60793-1-44 - Optical fibres
22、 - Part 1-44: Measurement methods and test procedures - Cut-off wavelength EN 60793-1-44 - IEC 60793-1-48 - Optical fibres - Part 1-48: Measurement methods and test procedures - Polarization mode dispersion EN 60793-1-48 - IEC 60793-2-50 - Optical fibres - Part 2-50: Product specifications - Section
23、al specification for class B single-mode fibres EN 60793-2-50 - IEC 60794-1-1 - Optical fibre cables - Part 1-1: Generic specification - General EN 60794-1-1 - IEC 60794-1-2 - Optical fibre cables - Part 1-2: Generic specification - Basic optical cable test procedures EN 60794-1-2 - IEC 60794-3 Seri
24、es Optical fibre cables - Part 3: Outdoor cables EN 60794-3 Series IEC 60794-3-10 - Optical fibre cables - Part 3-10: Outdoor cables - Family specification for duct, directly buried and lashed aerial optical telecommunication cables EN 60794-3-10 - IEC 60811-1-1 - Insulating and sheathing materials
25、of electric and optical cables - Common test methods - Part 1-1: General application - Measurement of thickness and overall dimensions - Tests for determining the mechanical properties EN 60811-1-1 - IEC/TR 61931 - Fibre optic - Terminology - - IEC/TR 62000 - Single-mode fibre compatibility guidelin
26、es - - This page deliberately left blank 60794-3-11 IEC:2010(E) 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 General information7 4.1 General cable description7 4.1.1 Characteristics of optical fibre .7 4.1.2 C
27、haracteristics of optical fibre cable elements .8 4.1.3 Characteristics of optical fibre cables 8 4.1.4 Environmental and product safety requirements 8 4.2 Optical fibre splice-ability 8 4.3 Testing9 4.3.1 General .9 4.3.2 No change in attenuation.9 4.3.3 No change in fibre strain9 5 Requirements fo
28、r cabled single-mode optical fibres9 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 discontinuities.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
29、 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 6.2.2 Tube kinking13 7 Requirements for optical cables14 7.1 Cable construction 14 7.1.1 General .14 7.1.2 Cable core.14 7.1.3 Anti-bu
30、ckling and strength element splicing .14 7.1.4 Cable element stranding14 7.1.5 Spliced fibres 14 7.1.6 Spare fibres.14 7.1.7 Cable sheath removal15 7.1.8 Armouring15 7.2 Sheath marking .15 7.2.1 Sheath marking .15 4BS EN 60794-3-11:201060794-3-11 IEC:2010(E) 5 7.2.2 Identification marking 15 7.2.3 C
31、able 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 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 .
32、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 Bend17 7.5.3 Impact .18 7.5.4 Crush 18 7.5.5 Tensile performance19 7.5.6 Torsion 20 7.5.7 Repeated bending .20 7.6 Environmental requirements21 7.6.1 Temperature cycling 21 7.6.2 S
33、tripping force stability of cabled optical fibres 22 7.6.3 Water penetration23 7.6.4 Environmental impact 23 7.7 Electrical protection.23 8 Quality assurance.23 Annex A (informative) .24 Annex B (informative) .25 Bibliography27 Figure 1 For all cycles except last21 Figure 2 Last cycle.21 Table 1 Req
34、uirements for the attenuation coefficient of cabled fibre.10 Table 2 Colour for individual fibres or units (listed alphabetically) 12 Table A.1 ITU-T see IEC 60794-3-12. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated refere
35、nces, only the edition cited applies. For undated references, the latest edition of the referenced document (including 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 meth
36、ods and test procedures Length measurement 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 test procedures Cut-off wavelength IEC 60793-1-48, Optical fibres Part 1-48: Measurement methods
37、and test procedures Polarization mode dispersion IEC 60793-2-50, Optical fibres Part 2-50: Product specifications 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 s
38、pecification Basic optical cable test procedures IEC 60794-3 (all parts), Optical fibre cables Part 3: Sectional specification Outdoor cables BS EN 60794-3-11:201060794-3-11 IEC:2010(E) 7 IEC 60794-3-10, Optical fibre cables Part 3-10: Outdoor cables Family specification for duct, directly buried an
39、d lashed aerial optical telecommunication cables IEC 60811-1-1, Common test methods for insulating and sheathing materials of electric cables and optical cables Part 1-1: Methods for general application Measurement of thickness and overall dimensions Tests for determining the mechanical properties I
40、EC/TR 61931, Fibre optic Terminology IEC/TR 62000, Single mode fibre compatibility guidelines 3 Terms, definitions and symbols 3.1 Terms and definitions For the purposes of this document, the terms and definitions given in IEC 61931 apply. 3.2 Symbols The following symbols are used in this document:
41、 cccable cut-off wavelength d outer cable diameter SZ technique in which the lay reverses direction periodically. 4 General information 4.1 Overview Single-mode optical fibres are widely used for telecommunication purposes and are cabled to satisfy the functional requirements of the installation env
42、ironment. Further, cables placed into ducts and sub-ducts may be installed using solely, or a combination of, pushing, pulling, and air-assisted installation techniques. For duct installation, the environment and infrastructure can be varied and may also involve the use of single and multiple sub-du
43、cts. Directly buried cables may be installed by a variety of methods such as ploughing and trenching with different environments and infrastructure. This may require specific cable design solutions based on multiple layers of armours and sheaths. It is recognised that certain designs of cable for di
44、rect buried applications involving such solutions may also be suitable for duct installation. The functional requirements and test methods featured in this specification are based upon adherence to established and recognised installation techniques such as those included in Annex C of IEC 60794-1-1.
45、 NOTE Annex C of IEC 60794-1 should become a technical report. 4.2 General cable description 4.2.1 Characteristics of optical fibre Single-mode optical fibres are classified according to their operational wavelength and dispersion characteristics. The fibres covered by this specification are categor
46、ised as type B and are described in IEC 60793-2-50. The fibre types featured in this specification are listed below: dispersion unshifted (B1.1, B1.3); bending loss insensitive (B6); dispersion shifted (B2); BS EN 60794-3-11:2010 8 60794-3-11 IEC:2010(E) cut-off shifted (B1.2), non-zero dispersion (
47、B4) - While cut-off shifted B1.2 fibre can be used in terrestrial applications, it is mainly used in submarine applications; wide-band non-zero dispersion-shifted (B5). (See Annex A for ITU-T cabled optical fibre references). 4.2.2 Characteristics of optical fibre cable elements Optical fibre cable
48、elements such as buffer tubes (loose or not), slotted core, fibre ribbons, fibre bundles and central/core tubes shall be suitably designed to provide adequate means of fibre location, identification, modularity, protection during cable manufacture, installation and termination. The structure of thes
49、e elements, and the materials used in their manufacture, shall not have any long term detrimental effects on fibre performance during the service life of the cable, splice enclosure and/or cabinet. To satisfy these functional requirements, the different elements shall comply with the requirements of IEC 60794-3 series as well as those outlined in Clause 6 of this standard. 4.2.3 Characteristics of optical fibre cables Optical
