A high voltage connection between a first line of a traveling wave tube and a second line of a voltage supply unit for the traveling wave tube includes a plug which is connected to an end section of the first line or of the second line by a crimp connection, and a socket which is connected to an end section of the other line by a crimp connection. Furthermore, a method for manufacturing a high voltage connection is also described.

A technique facilitates formation of secure connections for use in downhole environments. According to an embodiment, a connector may be constructed as a dry mate connector which provides both a sealed connection and a connection able to withstand a predetermined tensile loading. The connector comprises connector ends combined with an outer connector housing. Additionally, the connector comprises a shape memory alloy sealing system which may be activated to form a secure seal with a corresponding cable or other component feature. The connector also comprises a shape memory alloy retainer system which may be activated to securely grip the corresponding cable or other component feature so as to withstand substantial tensile loading acting on the corresponding cable or other component feature.

A method of heat shrinking a protective sleeve onto an electrical connection includes an initial step of providing an electrical connection, such as between an electrical wire and an electrical termination device, and a protective sleeve having an inner surface and an outer surface. The inner surface of the protective sleeve has an adhesive material applied thereto and is disposed about the electrical connection. Thermal energy is applied to the outer surface of the protective sleeve so as to increase the temperature thereof. Either before, at the same time, or after this step, the temperature of some or all of the electrical connection disposed within the protective sleeve is increased, such as by induction heating. As a result, the protective sleeve shrinks onto the electrical connection, and the adhesive material forms a tight bond between the protective sleeve and the electrical connection.

A conductive cable includes a single-core electric cable and a stranded electric cable. The single-core electric cable is constituted by a single conductor covered with a coating. The stranded electric cable is constituted by a plurality of stranded wires that are covered with a coating. The stranded electric cable is electrically connected to at least one of two end portions in a length direction of the single-core electric cable. The coating is stripped and the conductor is exposed at the at least one end portion of the single-core electric cable, the exposed conductor being crushed to one side in a thickness direction into a flat plate shape to form a crushed portion, and the wires of the stranded electric cable being connected to the crushed portion.

A heat-shrinkable protective element having at least one protective layer is obtained from a polymeric composition having a polymer material, where the polymeric composition additionally has an electrically conducting filler having a BET specific surface of at least 100 m.sup.2/g according to Standard ASTM D 6556.

An electrical cable splice is disclosed. The electrical cable splice comprises a dimensionally recoverable sleeve covering a connection region of a plurality of joined together conductive cores. The dimensionally recoverable sleeve mechanically and electrically connects the conductive cores to each other.

The invention relates to a guide device for guiding a contacting of electrical conductors of a cable with electrical contact means of a component, comprising: a guide housing which is at least partially electrically insulating, and a guide structure, which is formed on the guide housing for guiding the electrical conductors and/or the electrical contact means during contacting.

A pressurisation and heating device for restoring an insulation system of a power cable, the pressurisation and heating device including: a first part including a first channel configured to receive a portion of the power cable, a second part including a second channel configured to receive a portion of the power cable, wherein the pressurisation and heating device is configured to be set in a closed state in which the first channel faces the second channel thereby forming a heating chamber extending from a first end to a second end, opposite the first end, of the pressurisation and heating device, wherein the pressurisation and heating device is configured to be pressurised to obtain a pressure higher than atmospheric pressure inside the heating chamber when the power cable is arranged sealed in the heating chamber, wherein the pressurisation and heating device has an at least 20 cm long axially extending section which is primarily made of material at most having a conductivity of the order of 1000 S/m at 20 C.