METHOD FOR CONTRASTING INJECTION OF ELECTRICAL CHARGE IN INSULATING LAYER OF HVDC ELECTRICAL APPARATUS, HVDC TRANSMISSION CABLE AND ACCESSORY FOR HVDC CABLE

摘要

Described is a method for contrasting injection of electrical charge in an insulating layer (103, 203, 203A, 203B) made of dielectric material of a high- voltage direct current (HVDC) electrical apparatus, comprising a step of coating at least one portion of a surface (103A, 103B, 207A, 208A, 207B, 208B) of the insulating layer (103, 203, 203A, 203B) with a coating layer (106, 206, 206A, 206B) including a nanomaterial comprising graphene.