Systems for extracting electrical energy in power cables, from the electric field, without making electrical contact with the main conductors of the cable, which comprises a power cable and an extraction device of energy from the electric field, which captures the electric field inside the power cable, with alternating or direct voltage. Devices for extracting energy from the electric field. Manufacturing methods of the energy extraction system in power cables from the electric field. Manufacturing methods of the energy extraction device.

A coaxial cable includes an internal conductor, an insulator that is provided at an outer circumference of the internal conductor, a film that is provided at an outer circumference of the insulator, an external conductor that is provided at an outer circumference of the film, a sheath that is provided at an outer circumference of the external conductor, and an adhesive layer that is provided between the insulator and the film and that bonds the insulator and the film with each other.

The present invention relates to a cable (1) comprising one or more elongated conductive elements (11), said elongated conductive element or the set of said elongated conductive elements (11) being surrounded by a protective sheath (20), characterized in that the outer surface and/or the inner surface of the protective sheath comprises at least one longitudinal groove (21) in which is positioned at least one reflective longitudinal element (30) obtained from a first composition comprising a first polymer material and at least one reflective filler.

An electrical arrangement with an implantable cable element may be provided which comprises a strain relief element which is arranged centrically in the cross section, as well as a group of conductors insulated to one another, said group being stranded around the strain relief element, and a common shielding element surrounding the electrical conductors, as well as a fluid-tight cable sheath. The implantable cable element may have a symmetrical construction.

Enhanced traceability of cables is provided using illumination. An embodiment comprises introducing a chemiluminescent (alternatively, flourescent) solution into a chamber coupled to at least a portion of an insulating jacket that surrounds a transmission medium, the chamber being initially hollow and, in at least a portion thereof, comprised of a substance through which light is viewable, such that upon introduction of the solution, light emitted by the solution is viewable through at least a portion of the chamber. In another embodiment, a first and second compartment contain a first and second substance, respectively, and are physically separated by a separator material. The separator material, when triggered to open, forms an opening between the compartments that allows the substances to mix, the substances being chosen as providing a chemiluminescent reaction upon the mixing, such that light emitted by the chemiluminescent reaction is viewable.

A threaded reflective cord comprises a jacket and an inner cord; the inner cord comprising more than two stranded wires twisted helically and an cladding covered on the wire strands; wherein the cladding having an inner side thereof is embedded into a helical gap which is formed when the stranded wires are twisted helically; the helical gap forms and keeps an inward pre-tightening force on the stranded wires, the jacket and the inner cord having a reflective tape disposed therebetween, the reflective tape being spirally wounded on an outer side of the cladding; the jacket having an inner side thereof is coated on the cladding and embedded into a helical groove which is formed when the reflective tape is spirally wounded on the outer side of the cladding; the flexural resistance of the threaded reflective cord and the reflection performance are enhanced.

Enhanced traceability of cables is provided using illumination. An embodiment comprises introducing a chemiluminescent (alternatively, fluorescent) solution into a chamber coupled to at least a portion of an insulating jacket that surrounds a transmission medium, the chamber being initially hollow and, in at least a portion thereof, comprised of a substance through which light is viewable, such that upon introduction of the solution through a port, light emitted by the solution is viewable through at least a portion of the chamber. In another embodiment, a first and second compartment contain a first and second substance, respectively, and are physically separated. When an opening is caused in the physical separation, the substances are allowed to mix, the substances being chosen as providing a chemiluminescent reaction upon the mixing, such that light emitted by the chemiluminescent reaction is viewable.

An electrical arrangement with an implantable cable element may be provided which comprises a strain relief element which is arranged centrically in the cross section, as well as a group of conductors insulated to one another, said group being stranded around the strain relief element, and a common shielding element surrounding the electrical conductors, as well as a fluid-tight cable sheath. The implantable cable element may have a symmetrical construction.

An electric wire protecting device is used in order to be capable of being installed in a narrow wiring area like one in a small aircraft, and to minimize a risk of an electric arc inside electric wire bundles at low costs. To this end, the electric wire protecting device includes: power wire groups each of which is an assembly of one or more power wires at the same potential; a tape for binding the power wire groups at different potentials from one another into one bundle at a constant pitch; and a spacer extending in a direction of extension of the power wire groups, and inserted in boundaries between the power wire groups.

Aspects of the present disclosure relate to providing cable assemblies for cellular base stations having remote radio head units located atop a radio tower. Each installation requires near-custom cabling, as the electrical resistance of the conductors of the cable assembly varies based on the length of the cable assembly, and because different operators and local governments require different color-coding of the conductors which are coupled to the power trunk. Accordingly, a power distribution system is provided herein wherein conductors of a trunk cable may be coupled to power jumper conductors at transitions. The transitions are generally cylindrical and comprise channels into which splicing lugs are seated. The conductors may be electrically coupled together and secured via set screws. Manufacturing costs may be reduced, as common configurations of trunk cables may be manufactured in higher quantity and coupled to power jumper conductors according to local requirements.