Patent ID: 8186911

Claim:
A power umbilical for transmission of large quantities of electric power, fluids and electric current signals from the sea surface to equipment arranged on the sea bed, said power umbilical being adapted for use at depths where power umbilicals having metal load carrying elements and electric power cables of substantial transversal cross section, fluid pipes, and ropes which can create yield stresses that cause the metal load carrying elements to be torn off, said power umbilical comprising; a plurality of electric power conducting cables of substantial transversal cross section, pipes and electric conductors/wires collected in a bundle, a filler material arranged at least partly around and between the pipes, cables and the conductors/wires, and a protective sheath enclosing the pipes, cables conductors/wires and filler material, and a friction material sheath separate and apart from the protective sheath, wherein the power umbilical comprises separate load carrying elements, which load carrying elements are light weight rods of composite material having embedded strength fibers and are located in the friction material sheath.