Patent ID: 6242688
Filing Date: 2001-06-05
Classification: H01R,H02G

Abstract:
Sea electrode (15) for grounding of a high voltage direct current transmission system, comprising an electrically conducting electrode body (1) for connection to the transmission system and at least one ballast (4) located above the electrode, characterized in that the electrode comprises a layer (5) of an electrically non-conducting material, located above the electrode body and extending over it, so as to influence the maximum electrical field strength not to exceed a desired level at a point (P) at the edge of the non-conducting layer and thereby also, when the sea electrode is embedded in sea water, sea water impregnated matter at the sea bottom, or both in the sea water outside a zone (35) located below the non-conducting layer and in a vertical direction limited by the edge of the non-conducting layer.