Telecommunication Cables / Optical Fibres Cables / UK Telecom Fibre Optic Cables

This range of fibre cables is specifically designed for installation into underground ducts using cable pulling stockings and to allow the cable to be pressurised after installation. Being made in loose tube construction these cables contain 8 to 24 Step Index Single Mode Fibres and 6 Polyethylene insulated copper conductors formed into pairs. The required number of tubes each containing 4 fibres plus 3 colour coded polyethylene insulated pairs are assembled helically around a non-metallic central strength member, the design being specially chosen to ensure that the cable is neutrally balanced along its central axis. The interstices contain extrude fillers as required, the assembly of cores and tubes are covered overall with an aluminium foil moisture barrier bonded to a physically robust high density black polyethylene sheath, a rip cord is inserted under the sheath to aid stripping and termination of the cable. These cables are designed for pressurisation after installation.

Tratos has developed this cable to have the optimum balance of properties, toughness to withstand pulling into underground ducts using cable pulling stockings combined with a smooth, low coefficient of friction, surface, to ease installation and prevent jamming.

The Step Index single-mode optical fibre (9/125µm SMF) fibres used to manufacture these cables for BT meet or exceed the requirements for both Category 2 as specified in CW 1505 for systems operating in the wavelength range of 1260nm to 1625nm.

Tratos use Lucent OFS and Prysmian fibres to manufacture the Optical Fibre Cables supplied to BT.

These cables meet or exceed the requirements of CW 1588,

All of the polymeric materials used in the construction of cables for BT meet or exceed the requirements of BT Specification CW1500-7 and are RoSH compliant

BT Specifications:

  • CW 1588 Design guide
  • CW1179
  • CW 1205
  • CW 1402
  • CW 1500-2
  • CW 1500-7
  • CW 1505 (Category 2)
  • CW 2000
  • CN14087 Sheet 3


  • BS EN 60794-1-2
  • BS EN 50290-2-23
  • BS EN 50290-2-24



  • ITU-T G567A1


Contact us:

Tel: +44 20 3148 5178


Please don’t hesitate to contact us if you need additional information about our products.


 Company Profile


This range of cables is designed for installation, using cable pulling stockings, into underground ducts, these cables cab be pressurised after installation.


  • Central Dielectric Support FRP
  • Step index single mode (9/125µm) Category 2 fibre
  • Loose tube (dry, water blocking available on request)
  • Polyethylene insulated copper cores formed into pairs
  • Wrapping tape
  • Rip Cord
  • Bonded aluminium foil water barrier
  • HD PE Outer sheath


Technical Specifications

  • Step index single mode Category 2 fibre (ITU-T G657A1)
  • These cables are for use in transmission systems operating over the wavelength range 1260nm to 1650nm.
  • Operating temperatures between -20°C and +60°C

Contact us

Please, don’t hesitate to contact us for additional information on our company or our products.

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