NF EN 60708 : 2006

1 Scope
2 Normative references
3 Quality assurance
4 Cable construction
  4.1 Conductor
       4.1.1 Conductor material
       4.1.2 Type of conductor
       4.1.3 Conductor-finish
       4.1.4 Continuity of conductor
  4.2 Insulation
       4.2.1 Insulation material
       4.2.2 Insulation thickness
       4.2.3 Colour of insulated conductor
  4.3 Cabling element
  4.4 Stranding
  4.5 Colour code
       4.5.1 General
       4.5.2 Sub-units, units and cables up to and
              including 100 pairs or 100 quads
       4.5.3 Cables of more than 100 pairs or 100 quads
  4.6 Spare pairs or quads
  4.7 Filling
  4.8 Core protection
  4.9 Sheath
       4.9.1 Sheath material
       4.9.2 Application of the sheath
  4.10 Cable protection
  4.11 Finished cable
       4.11.1 Overall diameter
       4.11.2 Sheath marking
       4.11.3 Sealing of ends
  4.12 Delivery
5 Mechanical requirements
  5.1 Conductor
  5.2 Insulation
  5.3 Sheath
       5.3.1 Tensile strength and elongation
       5.3.2 Adhesion of aluminium tape to the
              polyethylene
       5.3.3 Adhesion of aluminium tape at the
              overlap
  5.4 Finished cable
       5.4.1 Sheath integrity
       5.4.2 Resistance to water penetration
       5.4.3 Cable drip
6 Thermal stability and environmental requirements
  6.1 Insulation
       6.1.1 Thermal oxidative stability (OIT-test)
       6.1.2 Shrinkage
       6.1.3 Wrapping test of insulation after thermal
              aging
       6.1.4 Bending test at low temperature
  6.2 Sheath
       6.2.1 Elongation at break after ageing
       6.2.2 Resistance to weathering
       6.2.3 Resistance to environmental stress cracking
7 Electrical requirements
  7.1 General
  7.2 Electrical resistance of conductor
  7.3 Electrical resistance unbalance
  7.4 Dielectric strength
  7.5 Insulation resistance
  7.6 Mutual capacitance
  7.7 Capacitance unbalance
  7.8 Transmission characteristics (when used for digital
       communication)
       7.8.1 Attenuation
       7.8.2 Near End Crosstalk (NEXT)
       7.8.3 Equal Level Far-end Crosstalk (ELFEXT)
       7.8.4 Power sum (PS) of crosstalk loss
       7.8.5 Characteristic impedance
       7.8.6 Velocity of propagation
Annex A (normative) Colour code: 10 pair or 5 quad count
Annex B (normative) Colour code: sub-unit identification
         for 50 pair (25 quad) and 100 pair (50 quad) cables
         or units, using 10 pair or 5 quad count
Annex C (normative) Colour code: 25 pair count
Annex D (normative) Colour code: unit identification for
         50 pair or quad and 100 pair or quad cables or units,
         using 25 pair or quad count
Annex E (normative) Colour code: 25 quad count
Annex F (normative) Colour code: unit identification for
         cables with more than 100 pairs, 25 pair count
Annex G (normative) Colour code: unit identification for
         cables with more than 100 pairs or 50 quads, using
         10 pair or 5 quad count or 25 quad count
Annex ZA (normative) Normative references to international
         publications with their corresponding European
         publications

Describes the design details and requirements for dimensions and other constructional details as well as mechanical, electrical and environmental characteristics for all types of low-frequency cables with polyolefin insulation (solid or cellular), filled or unfilled, and moisture barrier polyolefin sheath (with integral suspension strand).