BS EN 187105-2002 Single mode optical cable (duct direct buried installation)《单膜光缆(管道 直接掩埋设备)》.pdf

1、BRITISH STANDARD BS EN 187105:2002 Single mode optical cable (duct/direct buried installation) The European Standard EN 187105:2002 has the status of a British Standard ICS 33.180.10 BS EN 187105:2002 This British Standard, having been prepared under the direction of the Electrotechnical Sector Poli

2、cy and Strategy Committee, was published under the authority of the Standards Policy and Strategy Committee on 6 August 2002 BSI 6 August 2002 ISBN 0 580 40183 9 National foreword This British Standard is the official English language version of EN 187105:2002. The UK participation in its preparatio

3、n was entrusted by Technical Committee GEL/86, Fibre optics, to Subcommittee GEL/86/1, Optical fibres and cables, which has the responsibility to: A list of organizations represented on this subcommittee can be obtained on request to its secretary. Cross-references The British Standards which implem

4、ent international or European publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online. This publication does

5、 not purport to include all the necessary provisions of a contract. Users are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible international/Europe

6、an committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN title page, page

7、s 2 to 20, an inside back cover and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date CommentsEUROPEAN STANDARD EN 187105 NORME EUROPENNE EUROPISCHE NORM May 2002 CENELEC European Committee f

8、or Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B - 1050 Brussels 2002 CENELEC - All rights of exploitation in any form and by any means reserved worldwide for CENELEC member

9、s. Ref. No. EN 187105:2002 E ICS 33.180.10 English version Single mode optical cable (duct/direct buried installation) Cbles fibres optiques unimodales (installations en conduite/ directement enterres) Einmoden-Lichtwellenleiterkabel fr Rhren- und direkte Erdverlegung This European Standard was appr

10、oved by CENELEC on 2001-12-04. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nati

11、onal standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in 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 languag

12、e and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Malta, Netherlands, Norway, Portug

13、al, Spain, Sweden, Switzerland and United Kingdom.EN 187105:2002 2 Foreword This European Standard was prepared by the Technical Committee CENELEC TC 86A, Optical fibres and optical fibre cables. The text of the draft was submitted to the formal vote and was approved by CENELEC as EN 187105 on 2001-

14、12-04. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 2002-12-01 latest date by which the national standards conflicting with the EN have to be withdrawn (dow) 2004-12-01 _ C

15、ontents Clause Page 1 Scope .4 2 Normative references4 3 Terminology5 4 General information 6 4.1 General cable description.6 4.1.1 Characteristics of optical fibre 6 4.1.2 Characteristics of optical fibre cable elements6 4.1.3 Characteristics of optical fibre cables .6 4.1.4 Environmental and produ

16、ct safety requirements.7 4.1.5 Informative note: Upgrading to meet future network requirements7 4.2 Optical fibre spliceability 7 4.3 Testing.7 5 Requirements for cabled single mode optical fibres.7 5.1 Fibre materials.7 5.2 Optical requirements8 5.2.1 Attenuation coefficient8 5.2.2 Point discontinu

17、ities .8 5.2.3 Chromatic dispersion8 5.2.4 Cut-off wavelength .8 5.2.5 Mode field diameter .9 5.2.6 Macrobending sensitivity 9 5.2.7 Polarisation mode dispersion (PMD).9 5.2.8 Refractive group index .9 5.3 Geometrical requirements10 5.3.1 Mode field concentricity error .10 5.3.2 Primary coating non

18、circularity .10 5.3.3 Cladding/primary coating concentricity error.10 5.4 Mechanical requirements .10 5.4.1 Fibre proof test.10 5.4.2 Coating strip force10 5.4.3 Stress corrosion susceptibility.10 3 EN 187105:2002 6 Requirements for cable elements10 6.1 Element design 10 6.1.1 Modularity 11 6.1.2 Fi

19、bre and elements identification11 6.2 Element characteristics11 6.2.1 Ribbon .11 6.2.2 Tube kinking.12 7 Requirements for optical cables 12 7.1 Cable construction .12 7.1.1 Cable core12 7.1.2 Anti-buckling and strength elements splicing 12 7.1.3 Cable element stranding.12 7.1.4 Spliced fibres .12 7.

20、1.5 Spare fibres12 7.1.6 Cable sheath removal 13 7.1.7 Armouring 13 7.2 Cable marking13 7.2.1 Cable marking13 7.2.2 Identification marking .13 7.2.3 Cable length marking (if required) 13 7.3 Cable materials13 7.3.1 Tube filling compound material 13 7.3.2 Water-blocking material .13 7.3.3 Filling and

21、 water-blocking material flow13 7.3.4 Cable material compatibility .14 7.4 Cable sheath14 7.4.1 Sheath material14 7.4.2 Sheath thickness14 7.4.3 Outer cable diameter14 7.4.4 Moisture barrier14 7.5 Mechanical requirements .14 7.5.1 Cable bend.14 7.5.2 Cable impact15 7.5.3 Cable crush15 7.5.4 Cable te

22、nsile performance15 7.5.5 Cable torsion16 7.5.6 Cable repeated bending .16 7.6 Environmental requirements 16 7.6.1 Temperature cycling.16 7.6.2 Stripping force stability of cabled optical fibres.17 7.6.3 Water penetration 17 7.6.4 Hydrogen in cables.17 7.6.5 Environmental impact 17 7.7 Electrical pr

23、otection17 7.7.1 Continuity of metallic members17 7.7.2 Lightning damage susceptibility17 8 Product qualification requirements 18 8.1 General18 8.2 Definitions18 8.3 Optical fibre qualification18 8.4 Cable qualification .18 8.4.1 Cable element qualification 18 8.4.2 Optical fibre cable qualification

24、 19EN 187105:2002 4 1 Scope This document sets forth telecom operators, other service providers and manufacturers view of proposed technical requirements and characteristics of single mode optical fibres and cables for duct and direct buried installation. This specification includes proposed functio

25、nal mechanical, environmental and optical requirements, recommended features, and test methods for assessing the product against the stated requirements. The specified test methods where applicable, are those referenced in EN 60794-1-1 “Optical fibre cables Part 1-1: Generic specification General“ a

26、nd described in detail in EN 60794-1-2 “Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures“. The requirements of this specification shall be used in conjunction with EN 60794-3 “Optical fibre cables - Part 3: Duct, buried and aerial cables - Sectional specificat

27、ion“ and EN 60794-3-10 “Optical fibre cables Part 3-10: External cables Duct and directly buried optical telecommunication cables Family specification“. Multimode fibre requirements are not addressed in this document. 2 Normative references The following normative documents contain provisions which,

28、 through reference in this text, constitute provisions of this standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this standard are encouraged to investigate the possibility of applying the most r

29、ecent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. EN 50290-2-24 2002 Communication cables - Part 2-24: Common design rules and construction - PE sheathing EN 50290-2-28 2002 Communication cables - Part

30、 2-28: Common design rules and construction - Filling compounds for filled cables EN 50290-3 1) Communication cables Part 3: Quality assessment EN 60793-1-30 2002 Optical fibres - Part 1-30: Measurement methods and test procedures Fibre proof (IEC 60793-1-30) EN 60793-1-32 2) Optical fibres - Part 1

31、-32: Measurement methods and test procedures Coating strippability (IEC 60793-1-32) EN 60793-1-33 2002 Optical fibres - Part 1-33: Measurement methods and test procedures Stress corrosion susceptibility (IEC 60793-1-33) EN 60793-1-40 2) Optical fibres - Part 1-40: Measurement methods and test proced

32、ures Attenuation (IEC 60793-1-40) EN 60793-1-42 2002 Optical fibres - Part 1-42: Measurement methods and test procedures Chromatic dispersion (IEC 60793-1-42) EN 60793-1-44 2002 Optical fibres - Part 1-44: Measurement methods and test procedures Cut-off wavelength (IEC 60793-1-44) EN 60793-1-45 2) O

33、ptical fibres - Part 1-45: Measurement methods and test procedures Mode field diameter (IEC 60793-1-45) EN 60793-1-47 2002 Optical fibres - Part 1-47: Measurement methods and test procedures Macrobending loss attenuation (IEC 60793-1-47)1)At draft stage. 2)Awaiting publication pending ratification o

34、f prAA. 5 EN 187105:2002 EN 60794-1-1 2002 Optical fibre cables - Part 1-1: Generic specification General (IEC 60794-1-1:2001) EN 60794-1-2 1999 Optical fibre cables Part 1-2: Generic specification Basic optical cable test procedures (IEC 60794-1-2:1999) EN 60794-3 2002 Optical fibre cables Part 3:

35、Duct, buried and aerial cables Sectional specification (IEC 60794-3:2001) EN 60794-3-10 2002 Optical fibre cables Part 3-10: External cables Duct and directly buried optical telecommunication cables - Family specification (IEC 60794-3-10) EN 60811-1-1 1995 Insulating and sheathing materials of elect

36、ric cables Common test methods Part 1: General application Section 1: Measurement of thickness and overall dimensions Tests for determining the mechanical properties (IEC 60811-1-1:1993) EN 61663-1 1999 Lightning protection Telecommunication lines Part 1: Fibre optic installations (IEC 61663-1:1999)

37、 EN 188000 1992 Generic specification: Optical fibres EN 188100 1995 Sectional specification: Single-mode (SM) optical fibre EN 188101 1995 Family specification: Single-mode dispersion unshifted (B1.1) optical fibre EN 188102 1995 Family specification: Single-mode dispersion shifted (B2) optical fib

38、re HD 402 S2 1984 Standard colours for insulation for low-frequency cables and wires (IEC 60304:1982) IEC 60708-1 1981 Low-frequency cables with polyolefin insulation and moisture barrier polyolefin sheath Part 1: General design details and requirements IEC 60793-1-1 1995 Optical fibres Part 1-1: Ge

39、neric specification General IEC 60793-1-2 1995 Optical fibres Part 1-2: Generic specification Measuring methods for dimensions IEC 60793-1-4 1995 Optical fibres Part 1-4: Generic specification - Measuring methods for transmission and optical characteristics IEC 60793-1-5 1995 Optical fibres Part 1-5

40、: Generic specification - Measuring methods for environmental characteristics IEC 60793-2 1998 Optical fibres Part 2: Product specifications IEC 61282-3 Guidelines for the calculation of PMD in fiber optic systems IEC 61931 1998 Fibre optic Terminology (Technical Report) IEC 61941 2000 Optical fibre

41、s Polarization mode dispersion measurement techniques for single-mode optical fibres (Technical Specification) 3 Terminology Unless otherwise specified the definitions are given in IEC 61931.EN 187105:2002 6 4 General information Single mode optical fibres are widely used for communication purposes

42、and cabled to satisfy the functional requirements of the installation environment. For duct installation, the environment and infrastructure can be varied and may also involve the use of single and multiple subducts. Directly buried cables may be installed by a variety of methods such as ploughing,

43、trenching and moling with different environments and infrastructure. This may involve specific cable design solutions based on either light, medium or heavy armouring. It is recognised that certain designs of cable for direct buried applications involving light armour may also be suitable for duct i

44、nstallation. The functional requirements and test methods featured in this specification are based upon adherence to established and recognised instal- lation techniques such as those highlighted in the informative annex C (Guide to the installation of optical fibre cable) of EN 60794-1-1. 4.1 Gener

45、al cable description 4.1.1 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 categorised as type B and described in IEC 60793-1-1. The predominant fibre typ

46、es featured in this specification include, dispersion unshifted (B1.1, B1.3), dispersion shifted (B2) and non-zero dispersion (B4). Unless otherwise specified, requirements of applicable European single mode fibre standards (EN 188000, EN 188100, EN 188101 and EN 188102) have to be used in this stan

47、dard. Optical fibres are inherently robust and strong, but the strength can be drastically reduced due to the combination of environmental conditions, unavoidable microscopic surface flaws introduced during fibre manufacture and stresses imposed on the fibre during handling, cabling and installation

48、. The strength degradation can be as a result of dynamic or static fatigue as well as through ageing with no stress component. Dynamic fatigue is more likely to occur during installation whilst static fatigue could occur over the lifetime of the fibre arising from residual strain in the cable or wit

49、hin coiled fibre housed in a splice enclosure or footway box. The attenuation of cabled fibre could also increase during its lifetime if the fibre is not suitably protected from mechanical stresses and environmental hazards or if inappropriate and incompatible materials are used in the cable construction. The recommended cable design features, test parameters and requirements outlined in this