A system for preventing damage to a power cable for electric power transmission to and from and within a floating offshore wind power plant using non-redundant mooring, after failure of a main loadbearing mooring element is described, comprising at least one power cable safety line having the following properties: It is connected to the same two wind turbines as the power cable it is designed to protect. It has an effective length shorter than the power cable it is designed to protect. It has an effective length longer than what is needed to remain largely unstressed when the distance between the floating wind turbines with intact mooring systems is at its maximum. It has a breaking strength being a predetermined fraction of the strength, which the main loadbearing mooring elements are designed for.

A system for preventing damage to a power cable for electric power transmission to and from and within a floating offshore wind power plant using non-redundant mooring, after failure of a main loadbearing mooring element is described, comprising at least one power cable safety line having the following properties: It is connected to the same two wind turbines as the power cable it is designed to protect. It has an effective length shorter than the power cable it is designed to protect. It has an effective length longer than what is needed to remain largely unstressed when the distance between the floating wind turbines with intact mooring systems is at its maximum. It has a breaking strength being a predetermined fraction of the strength, which the main loadbearing mooring elements are designed for.

The present application provides a zero-buoyancy cable, which comprises a cable; a plurality of floats sheathed on the cable; and a cladding layer configured to tightly wrap the plurality of floats and the cable so as to fix the floats onto the cable. The zero-buoyancy cable provided in the present application can effectively avoid the loss of the float or the sliding of the float on the cable, thereby improving the balance of the zero-buoyancy cable in the water.

A coaxial cable includes: an center conductor; a dielectric insulator configured to coaxially surround the center conductor; an inner conductive foil layer configured to coaxially surround the dielectric; a braided shield layer configured to coaxially surround the inner conductive foil layer; and an outer jacket configured to coaxially surround the outer conductive foil layer. The outer conductive foil layer is bonded to the outer jacket; the outer conductive foil layer includes a first lateral region, a second lateral region and a sealant; the first lateral region and the second lateral region portions are configured to overlap each other; the sealant is configured to be disposed between the first lateral region and the second lateral region to form a sealed joint; and the outer conductive foil layer and the sealed joint are configured to prevent moisture that enters the outer jacket from passing the outer conductive foil layer and migrating along the coaxial cable so as to prevent signal loss or damage to a connector that terminates the coaxial cable.

A wiring member includes: a first electric wire; a braided wire that surrounds the first electric wire; a second electric wire; a resin; a sheath; and a ground wire that is electrically continuous with the braided wire. The braided wire surrounds the first electric wire, the second electric wire, and the braided wire. The sheath has a first end exposing the first electric wire, the second electric wire, and the braided wire. The braided wire has a second end exposing the first electric wire away from the first end. The resin seals, in a liquid-tight manner, the sheath and a region covered by the sheath, and the braided wire and a region surrounded by the braided wire. The first electric wire, the second electric wire, and the ground wire are exposed from the resin.

A wiring member includes: a first electric wire; a braided wire that surrounds the first electric wire; a second electric wire; a resin; a sheath; and a ground wire that is electrically continuous with the braided wire. The braided wire surrounds the first electric wire, the second electric wire, and the braided wire. The sheath has a first end exposing the first electric wire, the second electric wire, and the braided wire. The braided wire has a second end exposing the first electric wire away from the first end. The resin seals, in a liquid-tight manner, the sheath and a region covered by the sheath, and the braided wire and a region surrounded by the braided wire. The first electric wire, the second electric wire, and the ground wire are exposed from the resin.

A molded cable comprises a conductor, an insulation inner layer, an insulation outer layer, and a resin molded body. The insulation inner layer comprises a crosslinked ethylene resin composition and is provided an outer circumference of the conductor. The insulation outer layer comprises a crosslinked thermoplastic polyurethane composition and is provided on an outer circumference of the insulation inner layer. Arithmetic average roughness (Ra) of a surface of the insulation outer layer is 5 μm to 100 μm. The resin molded body coats an exposed end portion of the conductor and an end portion of the insulation outer layer at a side of the exposed end portion of the conductor. The resin molded body is fused to the insulation outer layer.

A molded cable comprises a conductor, an insulation inner layer, an insulation outer layer, and a resin molded body. The insulation inner layer comprises a crosslinked ethylene resin composition and is provided an outer circumference of the conductor. The insulation outer layer comprises a crosslinked thermoplastic polyurethane composition and is provided on an outer circumference of the insulation inner layer. Arithmetic average roughness (Ra) of a surface of the insulation outer layer is 5 μm to 100 μm. The resin molded body coats an exposed end portion of the conductor and an end portion of the insulation outer layer at a side of the exposed end portion of the conductor. The resin molded body is fused to the insulation outer layer.

A composite wiring includes: elastic wiring comprising an elastic tube, a conductor wire disposed inside the tube, and fixing portions that fix the conductor wire and the tube together at both ends of the tube in the lengthwise direction thereof, the length of the conductor wire between the fixing portions when the tube is in an unextended state being longer than the length of the tube between the fixing portions; other wiring separate from the elastic wiring; and a connection member that connects the conductor wire of the elastic wiring and a conductor wire of the other wiring by caulking in a state of being brought into contact with each other, the connection member having an interior section sealed in a watertight manner with a sealing material.

A composite wiring includes: elastic wiring comprising an elastic tube, a conductor wire disposed inside the tube, and fixing portions that fix the conductor wire and the tube together at both ends of the tube in the lengthwise direction thereof, the length of the conductor wire between the fixing portions when the tube is in an unextended state being longer than the length of the tube between the fixing portions; other wiring separate from the elastic wiring; and a connection member that connects the conductor wire of the elastic wiring and a conductor wire of the other wiring by caulking in a state of being brought into contact with each other, the connection member having an interior section sealed in a watertight manner with a sealing material.