Abstract: An umbilical (2) has a center tube (4) that is a steel tube, and that the cross section of the center tube (4) at the extremity of the umbilical (2) is made corrugated on a length that extends substantially from the extremity to a distance from the extremity so that fatigue strain on non corrugated parts of the steel tube is avoided when the extremity of the umbilical (2) is inserted into a bend stiffener (1).

Abstract: A high voltage power cable (1) includes at least two insulated conductors (2) and an armor package (6) surrounding the conductors (2). The cable (1) has a longitudinal central element (4) of an elastic material, and longitudinal elements (3) of polymer material placed between the said insulated conductors (2).

Abstract: A modular bend stiffener (100) includes a plurality of inflexible elements (120, 122) defining an elongate passage therein for accommodating one or more pipes or cables (170). The plurality of inflexible elements (120, 122) are coupled together in an elongate series via flexible elements (140) included between adjacent pairs of inflexible elements (120). The flexible elements (140) include one or more flexible pads (130) for enabling the stiffener (100) to flex laterally relative to an elongate axis of the stiffener (100) when in operation.

Abstract: A high voltage power cable (1) includes at least two insulated conductors (2) and an armour package (6) surrounding the conductors (2). The cable (1) has a longitudinal central element (4) of an elastic material, and longitudinal elements (3) of polymer material placed between the said insulated conductors (2).

Abstract: A modular bend stiffener (100) includes a plurality of inflexible elements (120, 122) defining an elongate passage therein for accommodating one or more pipes or cables (170). The plurality of inflexible elements (120, 122) are coupled together in an elongate series via flexible elements (140) included between adjacent pairs of inflexible elements (120). The flexible elements (140) include one or more flexible pads (130) for enabling the stiffener (100) to flex laterally relative to an elongate axis of the stiffener (100) when in operation.

Abstract: A power umbilical cable includes one or more axial elongate phases for conducting electrical current, and one or more axial elongate structural components adapted to undergo stress to withstand axial and bending strain applied to the power umbilical cable in operation. The umbilical cable has an outer protection layer, each of the phases having a conductive core made of a plurality of metal wires. Each current conducting core includes at a central portion therein, and surrounded by the plurality of conductive metal wires, a flexible element to enable the wires to move in a radial direction to reduce their strain when the umbilical cable is subject in operation to stress causing the one or more elongate structural components to be axially strained.

Abstract: A direct electrical heating flow system (100) includes at least one flow pipe (20) and at least one cable (120) disposed along the at least one flow pipe (20) for heating and/or monitoring the at least one flow pipe (20). The cable (120) includes an inner conductive region (180) surrounded by an annular insulating region (190, 200) and peripheral thereto an outer annular conductive region (210). The inner conductive region (180) encloses an optical fibre waveguide region (160) including at least one optical fibre waveguide (150) for conveying at least one information-bearing signal. Enclosing the optical fibre waveguide region (160) within the inner conductive region (180) and placing a soft bedding (170) under the conductive region (180) renders the cable (120) robust to impact damage as well as being more tolerant to stress elongation.

Abstract: An umbilical (2) has a center tube (4) that is a steel tube, and that the cross section of the center tube (4) at the extremity of the umbilical (2) is made corrugated on a length that extends substantially from the extremity to a distance from the extremity so that fatigue strain on non corrugated parts of the steel tube is avoided when the extremity of the umbilical (2) is inserted into a bend stiffener (1).