EN 187105:2002

1 Scope
2 Normative references
3 Terminology
4 General information
  4.1 General cable description
      4.1.1 Characteristics of optical fibre
      4.1.2 Characteristics of optical fibre cable elements
      4.1.3 Characteristics of optical fibre cables
      4.1.4 Environmental and product safety requirements
      4.1.5 Informative note: Upgrading to meet future network
            requirements
  4.2 Optical fibre spliceability
  4.3 Testing
5 Requirements for cabled single mode optical fibres
  5.1 Fibre materials
  5.2 Optical requirements
      5.2.1 Attenuation coefficient
      5.2.2 Point discontinuities
      5.2.3 Chromatic dispersion
      5.2.4 Cut-off wavelength
      5.2.5 Mode field diameter
      5.2.6 Macrobending sensitivity
      5.2.7 Polarisation mode dispersion (PMD)
      5.2.8 Refractive group index
  5.3 Geometrical requirements
      5.3.1 Mode field concentricity error
      5.3.2 Primary coating non circularity
      5.3.3 Cladding/primary coating concentricity error
  5.4 Mechanical requirements
      5.4.1 Fibre proof test
      5.4.2 Coating strip force
      5.4.3 Stress corrosion susceptibility
6 Requirements for cable elements
  6.1 Element design
      6.1.1 Modularity
      6.1.2 Fibre and elements identification
  6.2 Element characteristics
      6.2.1 Ribbon
      6.2.2 Tube kinking
7 Requirements for optical cables
  7.1 Cable construction
      7.1.1 Cable core
      7.1.2 Anti-buckling and strength elements splicing
      7.1.3 Cable element stranding
      7.1.4 Spliced fibres
      7.1.5 Spare fibres
      7.1.6 Cable sheath removal
  7.2 Cable marking
      7.2.1 Cable marking
      7.2.2 Identification marking
      7.2.3 Cable length marking (if required)
  7.3 Cable materials
      7.3.1 Tube filling compound material
      7.3.2 Water-blocking material
      7.3.3 Filling and water-blocking material flow
      7.3.4 Cable material compatibility
  7.4 Cable sheath
      7.4.1 Sheath material
      7.4.2 Sheath thickness
      7.4.3 Outer cable diameter
      7.4.4 Moisture barrier
  7.5 Mechanical requirements
      7.5.1 Cable bend
      7.5.2 Cable impact
      7.5.3 Cable crush
      7.5.4 Cable tensile performance
      7.5.5 Cable torsion
      7.5.6 Cable repeated bending
  7.6 Environmental requirements
      7.6.1 Temperature cycling
      7.6.2 Stripping force stability of cabled optical fibres
      7.6.3 Water penetration
      7.6.4 Hydrogen in cables
      7.6.5 Environmental impact
  7.7 Electrical protection
      7.7.1 Continuity of metallic members
      7.7.2 Lightning damage susceptibility
8 Product qualification requirements
  8.1 General
  8.2 Definitions
  8.3 Optical fibre qualification
  8.4 Cable qualification
      8.4.1 Cable element qualification
      8.4.2 Optical fibre cable qualification

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 functional 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" and 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 specification" 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.