Design and test of a flexible EHV cable connection for a floating plant

Transmission cable connections to an offshore floating plant present unique flexing problems due to motions of the plant during storm conditions even though the plant is moored in the basin of a protective breakwater. This paper deals with strains in the cable due to flexing, and the flexible arches designed to distribute those strains at the hinges of a three-hinged support system. Structural details of the support system are not discussed. Analysis and test data are presented to prove the feasibility of utilizing self-contained oil-filled cables for an overhead EHV flexible cable connection to a floating plant.