Polyethylene insulated jelly filled Telephone Cables are widely used for primary and Secondary distribution networks. The cables having single jacket are use as duct cables up to 2400 pairs as primary network. Secondary cables are directly buried and may Armoured with additional jacket of a tough weather resistance LDPE Compound.

The cables core are fully filled with gel type hydrocarbon base filling compound having the same dielectric constant and compatible with the insulation and jacketing materials. The cables are manufactured with high-grade materials according to REA & Pakistan Telecommunication Company Limited Specification or customer’s requirement

Cable Constructions:     

       CONDUCTOR 

            Fully annealed high quality solid copper, the conductor sizes are 0.4, 0.5, 0.6 & 0.9 mm.

        INSULATION

            Colour high molecular Weight High-Density Polyethylene (HDPE)

        COLOUR CODING    

            Colour are fully colour coded in accordance with PIC even count colour code.

         PAIRING

   Two coloured insulated conductors are uniformly twisted together to form a pair, Varying lay length is designed to minimize  the cross talk and capacitance unbalance.

          STRANDING / CABLING

    Twisted pairs are assembled into unit of 12, 13, 25, 50, 100 pairs, when desired for lay-up reason the units are divided into two or more sub-units, which are bind with durably coloured polyethylene Tapes to from a compact and circular cable.

FILLING COMPOUND

               The water resistant filling compound is applied to fill the air spaces within the cable core.

          CORE COVERING

      A non-hygroscopic and dielectric heat resistant polyester Tape and Water Blocking Tape are applied helically having a suitable overlap.

           FLOODING COMPOUND

      Get type hydrocarbon base compound is applied between the core wrap and shield.

            MOISTURE BARRIER INNER PE SHEATH (INNER JACKET)

       An Aluminum tape with co-polymer coating is applied over the cable core & sheath with Black Polyethylene compound.

  JACKET

                 Black High Molecular Weight Low Density Polyethylene (LDPE)

             IDENTIFICATION

        An Identification Tape durable marked with the Manufacturer’s Name, year of Manufacture and Cable size, if required, is placed under the Core Covering Tape. Alternatively, these details may be printed on the outer jacket of cable length marking.