A cable includes at least one inner conductor and an insulation layer surrounding the inner conductor. An outer conductive layer surrounds the insulation layer and center conductor and includes a carbon nanotube substrate having opposing face surfaces and edges. One or more metals are applied as layer(s) to the opposing face surfaces and edges of the carbon nanotube substrate for forming a metallized carbon nanotube substrate. The metallized carbon nanotube substrate is wrapped to surround the insulation layer and center conductor for forming the outer conductive layer. Embodiments of the invention include a braid layer positioned over the outer conductive layer. The braid layer is woven from of plurality of carbon nanotube yarn elements made of a plurality of carbon nanotube filaments. The carbon nanotube filaments include a carbon nanotube core and metal applied as a layer on the carbon nanotube core for forming a metallized carbon nanotube filaments and yarns woven to form the braid layer.

Coaxial video push-cables are disclosed. One embodiment includes a central conductor and a multi-dielectric stack of multiple concentric tubular layers disposed around the central conductor having one or more structural layers and one or more impedance tuning layers where the thickness of materials of each layer are selected to provide a pre-defined elastic modulus and electromagnetic impedance, an electromagnetic shielding layer, and a jacket enclosing the shielding layer, multi-dielectric stack layers, and central conductor.

A high frequency cable includes a center conductor comprising one first wire, which is located at the center of the center conductor, and a plurality of second wires, which are located around that one first wire, and the one first wire and the plurality of second wires are stranded together. Respective outer peripheral surfaces of the plurality of second wires constitute a substantially continuous circular peripheral surface as an outer peripheral surface of the center conductor.

A coaxial cable has an inner conductor, an insulator provided on an outer circumference of the inner conductor, a film provided on an outer circumference of the insulator, an outer conductor provided on an outer circumference of the film, and a sheath provided on an outer circumference of the outer conductor. At least a part of the film is colored in a different color from both colors of the insulator and the outer conductor.

A two-core twisted shielded cable includes two insulated wires being twisted together, a metal foil shield, a metal braid, and a sheath. A relationship between an ellipse circumscribing the two insulated wires and a width of the metal foil shield is the width=an elliptical circumference/(1??), and 0.20???0.40. The metal foil shield has a thickness of 15 ?m or more and 120 ?m or less, includes a metal layer and a PET film layer, and 0.10?(a metal layer thickness/a PET film layer thickness)?1.25.

A communication cable 1 is provided with a conductor 2, an insulation layer 3 containing an organic polymer and covering an outer periphery of the conductor 2, a metal foil 5 for covering an outer periphery of the insulation layer 3, and a magnetic sheath layer 7 containing an organic polymer and a powdered magnetic material and covering an outer periphery of the metal foil 5. A tensile modulus of elasticity of the magnetic sheath layer 7 is lower than that of the insulation layer 3. Assuming that an organic polymer having a melting point of 100 C. or lower is a low melting point polymer and a mass ratio of the low melting point polymer to organic polymer components constituting each layer is a low melting point component ratio, the low melting point component ratio is larger in the magnetic sheath layer 7 than in the insulation layer 3.

A data communication cable assembly including a cable with wire and/or optical fiber communication mediums for transmitting data signals and/or power signals, and connectors for connecting to a pair of devices, respectively. Each of the connector includes a connector plug or receptacle configured to mate with a corresponding receptacle or plug of a device, wherein the connector plug or receptacle includes a set of electrical contacts configured to send and/or receive the data signals and/or power signals to and/or from the device; a metallic shell defining an enclosure and including first and second openings, wherein the connector plug or receptacle mate is configured to mate with the corresponding receptacle or plug of the device via the first opening, and wherein the cable extends from inside to outside of the enclosure via the second opening; and electrically-conductive filler material configured to reduce electromagnetic leakage via the first and second openings.

A method of installing a fire resistant coaxial cable is described in which the cable has a 2-part dielectric made of a polymer foam and a ceramifiable silicone rubber. The polymer foam, which can be polypropylene or other polymers, leaves little-to-no residue in the cable that causes electromagnetic loss when upon burning. The polymer foam can be extruded over a center conductor using an inert gas, such as nitrogen, to propagate the foam, ensuring little-to-no residue in the cable. The ceramifiable silicone rubber can be extruded over the polymer foam. The cable is configured to maintain a relatively coaxial relation between a center conductor and an outer conductor even under aforementioned fire tests. Another layer of ceramifiable silicone rubber can surround the outer conductor and continue to insulate it from the outside if a low-smoke zero-halogen (LSZH) jacket outer layer burns away.

A coaxial cable and method of construction thereof are provided. The coaxial cable includes an elongate central conductive member; a dielectric insulative layer encasing the central conductive member; an outer protective sheath, and a braided EMI shield layer including hybrid yarn sandwiched between the dielectric insulative layer and the outer protective sheath. The hybrid yarn includes an elongate nonconductive filament and an elongate continuous conductive wire filament. The wire filament is interlaced in electrical communication with itself or other wire filaments along a length of the EMI shield layer to provide protection to the central conductive member against at least one of EMI, RFI or ESD. The method includes providing a central conductive member; forming a dielectric insulative layer surrounding the central conductive member; braiding an EMI shield layer including hybrid yarn about the insulative layer, and forming an outer protective sheath about the braided EMI shield layer.

Systems and methods presented herein provide reduced weight cabling using carbon nanotubes (CNTs). In one embodiment, a cable comprises a conductive core comprising a metalized strand of CNTs.