TRATOS® INDOOR – CW 1308 Distribution Cables

Tratos Indoor Cable CW 1308

Telecommunication Cables / Telecommunication Copper Cables / UK Telecom Cables

Tratos is a long-established manufacturer of Telecommunication Cables, a family of cables used for the transmission of Data, Information, Voice and Images. Production at Tratos covers almost all the installation needs of Telecommunication Cabling.

Tratos supplies two versions of this CW 1308 cable, a standard cable with PVC insulation and a PVC sheath or, where good Reaction to Fire Performance is required, Polyethylene insulation with a Low Smoke, Zero Halogen (LSZH) thermoplastic sheath. Tratos produce a range of telecommunication cables to meet the requirements of The Construction Products Regulation 305/2011 (‘the CPR’).

The cable is available with either 0.40 mm or 0.50 mm plain annealed copper conductors (tinned annealed copper available by special request). Standard insulation is PVC Type TI 54 alternatively Polyethylene. Cores are twisted to form pairs or triples which in turn are stranded in layers, units or sub-units, the final assembly of pairs or triples is wrapped in a polyester tape prior to the application of the sheath. The standard sheath is PVC Type TM 51 or where improved fire performance is required a LSZH sheath. The robust LSZH sheath used by Tratos ensures outstanding pliability and protection. Rip cords are included under the sheath to aid and easy stripping and terminating of the cable.

When required these cables can be supplied with a laminated water barrier screen integral with the sheath or an aluminium polyester foil screen.

The cable itself meets or exceeds the requirements of CW 1822.

Guidance for the installation of telecommunications cabling is contained in BS 6701 Telecommunications equipment and telecommunications cabling. Specification for installation, operation and maintenance.


  • CW 1308 Design guide
  • CW 1000
  • CW 1179
  • CW 2000
  • M 224


  • BS EN 50290 Part 22
  • BS EN 50290 Part 24.
  • BS EN 50356
  • BS EN 60228

Contact us:

Tel: +44 20 3148 5178


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


For general use for installation in customer’s premises where good appearance is required. Unit, of 20-pairs. Unit, of 16-pairs, for use with the binary number system. Unit, of 30-pairs, for use with pcm systems. Unit of 25-pairs, for use with LLU equipment.


  • Conductor: Tinned copper 0.4 or 0.5 mm plain annealed copper
  • Insulation: PVC (polyethylene available on request)
  • Cabling: Pair or triple; layered, unit and sub-unit
  • Range Layered  2 to 25 pairs, layered 1 to 5 triples: up to 320 pairs in units
  • Screen: laminated water barrier tape or polyester aluminium foil  (when required)
  • Sheath: PVC or LSZH


Technical Specifications

Operating temperatures between -20°C and +60°C
Maximum conductor resistance at 20°C: 0.40 mm – 153 Ω/km; 0.50 mm – 97.8 Ω/km
Minimum Insulation Resistance: 50 MΩ/km at 20°C
Capacitance Unbalance: 0.4 mm in units 200 pF; 0.4 mm in layers 300 pF; 0.5 mm in units 500 pF

Contact us

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

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