A radio head cable may include an inner conductor and an outer conductor coaxially arranged around the inner conductor. The inner conductor may have a first direct current resistance and a cross-sectional area of at least 5.0 square millimeters. The outer conductor may have a second direct current resistance equal to or less than the first direct current resistance. A first dielectric layer including polyvinylchloride may be positioned between the inner conductor and the outer conductor. A second dielectric layer including polyvinylchloride may be positioned around the outer conductor, and a third dielectric layer including nylon may be positioned around the second dielectric layer.

To provide a coaxial cable having excellent shieldability and processability of an external conductor.

The above-described problem is solved by a coaxial cable comprising a center conductor (11), an insulator (12) provided on an outer periphery of the center conductor (11), an external conductor (13, 14) provided on an outer periphery of the insulator (12), and an outer coated body (15) covering the external conductor (13, 14). The external conductor (13, 14) is constituted by the lateral winding shield (13) provided with metal fine wires laterally wound on the outer periphery of the insulator (12), and the metal layer double-sided resin tape (14), with metal layers disposed on both sides, wound on the lateral winding shield (13).

A reelable support member for downhole operations comprising a plurality of composite strands and a filler matrix between the plurality of composite strands, wherein each composite strand comprises carbon fibres and epoxy; and a method of manufacturing the reelable support member by winding a plurality of composite strands around a core, each composite strand comprising carbon fibres and epoxy, and applying a filler matrix between the plurality of composite strands.

Electrical cables are disclosed can include at least one electrical conductor, an inner electrical insulator that surrounds the at least one electrical conductor, and an electrical shield disposed about the inner electrical insulator. The electrical cables can include an electrically conductive material disposed between adjacent layers of the electrical cable. In one example, an electrical coating can be disposed in the electrical shield, for instance, in regions of overlap. Flowable electrically conductive materials are also disclosed that can flow into gaps during operation of the electrical cable.