Cu or Al – XLPE – Cu – Al – PE

Single Core Cable Unarmoured – XLPE Insulation – IEC-60840

Application Cable for power distribution and power supply stations used in Utility and Industrial applications, for rated voltages 26/45kV and 36/60kV. Suitable for fixed installations, underground in ducts or directly buried.
Cable Designation Cu / XLPE / Cu Wire Screen / Al Tape / PE
Al / XLPE / Cu Wire Screen / Al Tape / PE:
Construction Characteristics
Conductor Plain annealed Copper or Aluminium, circular, stranded, class 2 per IEC 60228.
Insulation Semi-conductive screen over the conductor. XLPE (cross-linked polyethylene) insulation and semiconductive screen over the insulation (adhered), applied by simultaneous extrusion in just one operation.
Metallic Screen Annealed copper wires, helically wound and an equalising copper tape applied in an open counterhelix. Cross-section area of screen according to client request.
Oversheath Aluminium / polyester tape applied helically with an overlap.
2A 0.5 mm tinned copper drain wire is applied under the tape.
Oversheath Aluminium copolymer coated tape, longitudinally applied, bonded to the extruded PE oversheath, type ST7. Upon agreement, an extruded semi-conductive thin layer may be applied on the surface of the oversheath, to facilitate the detection and location of defective points.
Watertightness option (cbe) – Conductor and metallic screen longitudinally watertight. Conductor: Use of waterblocking yarns and/or tapes between wire layers; Metallic screen: Assured by application of semi-conductive waterblocking tapes under and over the screen. L – Radial watertightness provided by the aluminium-coated tape.

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