An electrosurgical cable that produces no electromagnetic (EM) field around its vicinity (zero-EM pollution). The cable is comprised of inner insulator with embedded conductor placed inside the outer insulator tube with embedded second conductor. Sizes and materials of conductors and insulators are chosen so that voltage applied to inner conductor is higher than the breakdown voltage while voltage applied to gas gap inside the electrosurgical cable is below than the breakdown voltage. Therefore, the cable is producing discharge at the surgical handpiece, but breakdown inside the cable is prohibited.

A parallel pair cable includes: a pair of insulated wires each of which includes an insulating layer around a conductor; a covering resin layer which is in contact with the pair of insulated wires, and which covers the pair of insulated wires; and a shield layer which is disposed outside the covering resin layer in contact with the covering resin layer, and which includes a metal layer. The pair of insulated wires are in contact with each other and arranged in parallel without being twisted, and the covering resin layer is formed by extrusion of resin.

A coaxial cable includes a conductor, an insulation layer provided around the conductor, a shield layer provided around the insulation layer, and a sheath provided around the shield layer. The insulation layer includes a first insulation layer, a second insulation layer and a third insulation layer that are arranged in this order from a conductor side. The first insulation layer includes a non-solid extruded layer. The second layer includes a foamed layer not adhering to the first insulation layer. The third insulation layer includes a non-foamed layer adhering to the second insulation layer.

An electrical cable includes a conductor assembly having a first conductor, a second conductor and an insulator surrounding the first conductor and the second conductor. The insulator has an outer surface having an RMS roughness of less than 1.0 micrometers. A cable shield provides electrical shielding for the first and second conductors and has a metallized conductive layer on the outer surface of the insulator. A method of manufacturing an electrical cable includes feeding a first conductor and a second conductor to a core extruder, extruding an insulator around the first and second conductors at the core extruder, heating an outer surface of the insulator to lower a roughness profile of the outer surface, and directly apply a conductive layer to the outer surface of the insulator.

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a core for propagating electromagnetic waves guided by the core without an electrical return path, a rigid material surrounding the core, wherein an inner surface of the rigid material is separated from an outer surface of the core, and a conductive layer disposed on the rigid material. Other embodiments are disclosed.

A transmission cable including a signal wire and a shielding layer is provided. The signal wire is configured to transmit a differential signal provided by an eDP interface or a V-by-one interface. The shielding layer is configured to cover the signal wire. An end of the signal wire receives the differential signal provided by the eDP interface or the V-by-one interface, and another end of the signal wire outputs the differential signal provided by the eDP interface or the V-by-one interface. In addition, a display system is also provided.

A coaxial cable includes a conductor, an insulation layer provided around the conductor, a shield layer provided around the insulation layer, and a sheath provided around the shield layer. The insulation layer includes a first insulation layer, a second insulation layer and a third insulation layer that are arranged in this order from a conductor side. The first insulation layer includes a non-solid extruded layer. The second layer includes a foamed layer not adhering to the first insulation layer. The third insulation layer includes a non-foamed layer adhering to the second insulation layer.

In a method for manufacturing a wire harness, a process in which a metallic tube body is expanded in an exterior member to be an expanded state, so that an outer surface of an insulator comes into close contact with an inner surface of the exterior member is included.

Fire-resistant coaxial cables are described as well as methods to manufacture them. The dielectric between the coax cable's central conductor and outer coaxial conductor ceramify under high heat, such as those specified by common fire test standards (e.g., 1850 F./1010 C. for two hours). The dielectric can be composed of ceramifiable silicone rubber, such as that having a polysiloxane matrix with inorganic flux and refractory particles. Because thick layers of uncured ceramifiable silicone rubber deform under their own weight when curing, multiple thinner layers are coated and serially cured in order to build up the required thickness. A sacrificial sheath mold is used to hold each layer of uncured ceramifiable silicone rubber in place around the central conductor while curing. The outer conductor can be a metal foil, metal braid, and/or corrugated metal. Another layer of extruded ceramifiable silicone dielectric or an outer wrap of ceramic fiber yarn surrounds the outer conductor and continues to insulate it from the outside if a low smoke zero halogen jacket burns away. Methods of testing and installation are described.

Aspects of the subject disclosure may include, for example, a transmission medium for propagating electromagnetic waves. The transmission medium can include a core for propagating electromagnetic waves guided by the core without an electrical return path, a rigid material surrounding the core, wherein an inner surface of the rigid material is separated from an outer surface of the core, and a conductive layer disposed on the rigid material. Other embodiments are disclosed.