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US 12,749,596 B2Granted
Strength member assemblies and overhead electrical cables incorporating optical fibers
AssigneeCTC Global Corporation
InventorsWilliam Webb, Xiaoyuan Dong, Christopher Wong, Ian M. Pilling, Douglas A. Pilling
Life of this patent
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Abstract
Strength member assemblies including a strength member and at least one glass optical fiber operatively coupled to the strength member. The optical fiber is coupled to the strength member in a manner such that mechanical strains experienced by the strength member are transferred to the optical fiber so that the optical fiber may be interrogated to assess the state of the strength member.
Claims16
An overhead electrical cable comprising:
- a strength member assembly comprising at least a first strength element comprising a fiber-reinforced composite material comprising elongate carbon reinforcing fibers disposed in a binding matrix;
- an electrical conductor surrounding the strength member assembly, the electrical conductor comprising a plurality of conductive aluminum strands that are helically wrapped around the strength member;
- an optical fiber disposed along an outer surface of the first strength element;
- a polymer layer disposed over the outer surface of the first strength element and the optical fiber, where the polymer layer is selected from the group consisting of a high performance plastic coating and a polymer tape helically wrapped around the strength element;
- and
- an aluminum layer disposed over the polymer layer.
3 more elements
Dependencies are inferred from the claim text.