Submarine Power Cable With Curvature Monitoring Capability
AssigneeNKT HV Cables AB
InventorsAndreas Tyrberg, Patrik Holmberg, Petrus Althini
Life of this patent
Estimating the term…
Abstract
A multi-phase submarine power cable including: a plurality of power cores arranged in a stranded configuration, and a curvature sensor including: an elastic elongated member, and a plurality of Fibre Bragg Grating, FBG, fibres, each FBG fibre extending axially along the elongated member at a radial distance from the centre of the elongated member; wherein the elongated member extends between the stranded power cores along a central axis of the multi-phase submarine power cable.
Claims19
A multi-phase submarine power cable comprising:
- a plurality of power cores arranged in a stranded configuration, and
- a curvature sensor comprising:
- an elastic elongated member, and
- a plurality of Fibre Bragg Grating, FBG, fibres, each FBG fibre extending axially along the elongated member at a radial distance from the centre of the elongated member;
- wherein the elongated member extends between the stranded power cores along a central axis of the multi-phase submarine power cable.
A method of preparing a multi-phase submarine power cable for operation, the method comprising:
- a) providing a multi-phase submarine power cable including a plurality of power cores arranged in a stranded configuration, the multi-phase submarine power cable having an open end,
- b) providing a curvature sensor including an elastic elongated member, a plurality of Fibre Bragg Grating, FBG, fibres extending axially along the elongated member at a radial distance from the centre of the elongated member, and
- c) pushing the curvature sensor from the open end of the multi-phase submarine power cable in between the stranded power cores and along a central axis of the multi-phase submarine power cable.
Dependencies are inferred from the claim text.