High Voltage Cables

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Semi-conductive & Insulation layer

Conductor and insulation shields homogenize the electrical field to prevent electrical breakdowns of high voltage cables.

The shield also protects the insulation surface from the damaging effects of ionisation as well as physical damage. The insulation shield must also facilitate the grounding of the cable during switching surges, short circuits, or lightning strikes.

In applications up to 35 kV, Evatane®-based outer semicon layer can be bonded or strippable. Above 35 kV the outer semiconductor layer must be fully bonded.

Lotryl® Butyl Acrylate copolymers are widely used in insulation layer to prevent water-treeing.


HFFR Compounds Semi-conductive layer Insulation Layer

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