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:
|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.|