Indoor telephone cables

APPLICATĐONS

Designed to use in ducts. Cables having 0.5 mm. Conductor diameter are used for distribution network, cables having 0.9 mm. conductor diameter are used for long distance network.

CONSTRUCTION

  1. Conductor:
    Solid annealed copper having the diameter of 0.5 mm. (if customer needs, tin coated copper can be used).


  2. Insulation:
    Colour coded polyvinylchloride (PVC).


  3. Cable Assembly:
    Quads, each having special lay length to minimize the crosstalk and capacitance unbalance, are assembled into cable core.


  4. Core Covering:
    A non-hygroscopic dielectric plastic tape having suitable overlap is applied longitudinally or helically over the cable core.


  5. Outer Jacket (Sheath):
    Polyvinylchloride (PVC) is extruded over the core covering (Aluminium foil can be used).


  6. Identification Tape:
    A suitable tape, durably marked with the manufacturer's name, year of manufacture and type of cable, is placed under the core covering. Alternatively, these details may be printed on the outside of jacket.


  7. Length Marking
    Sequentially numbered length markings are located at alternate 1 meter intervals on the outside of the jacket.


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