Abstract:
A method for installing an elastomeric cover sleeve on an electrical connection including a connector and a cable having a cable axis includes: providing an installation tool including a slide portion; premounting the installation tool on the cable such that the slide portion extends along the cable axis and covers a portion of the cable; thereafter, sliding the cover sleeve onto the cable and onto the slide portion of the premounted installation tool to a parked position wherein the slide portion is interposed between the cover sleeve and the cable; installing the connector onto the cable; and thereafter, sliding the cover sleeve along the cable axis and the slide portion onto the connector.
Abstract:
A method includes coupling a core of a heating section to a core of an overburden section of an insulated conductor. A diameter of the core of the heating section is less than a diameter of the core of the overburden section. A first insulation layer is placed over the core of the heating section such that at least part of an end portion of the core of the heating section is exposed. A second insulation layer is placed over the core of the overburden section such that the second insulation layer extends over the exposed portion of the core of the heating section. A thickness of the second insulation layer is less than a thickness of the first insulation layer and an outer diameter of the overburden section is substantially the same as an outer diameter of the heating section.
Abstract:
The present invention relates to a joint including two sections of an electric power cable, each cable section comprising at least one core member surrounded by a first armouring layer (10) for protecting the core member from tensile forces acting on the cable, the first armoring layer including a plurality of armoring wires arranged along the length of the cable and twisted in a first direction with respect to the longitudinal direction of the cable. The joint comprises at least one core joint between the core members of the cable sections, and an outer mechanical casing (13) surrounding the at least one core joint and mechanically connected to the first armoring layers of the cable sections, and a second armouring layer (11) positioned in an area neighboring the casing, surrounding at least one of the cable sections, and having one end mechanically connected to the casing and the other end terminated at a distance from the casing, and the second armouring layer includes a plurality of elongated armoring elements (11b) wound twisted in an opposite direction to the wires of the first armouring layer with respect to the longitudinal axis of the cable in order to increase the torsional rigidity of the area neighboring the casing. This invention also relates to a method for joining the two cable sections.
Abstract:
A method includes coupling a core of a heating section to a core of an overburden section of an insulated conductor. A diameter of the core of the heating section is less than a diameter of the core of the overburden section. A first insulation layer is placed over the core of the heating section such that at least part of an end portion of the core of the heating section is exposed. A second insulation layer is placed over the core of the overburden section such that the second insulation layer extends over the exposed portion of the core of the heating section. A thickness of the second insulation layer is less than a thickness of the first insulation layer and an outer diameter of the overburden section is substantially the same as an outer diameter of the heating section.
Abstract:
A method of jointing two high voltage impregnated cables (10a, 10b), each comprising a conductive core, made of a conductor (12a, 12b) wrapped in an inner semiconducting layer (14a, 14b), a cable insulation layer (16), impregnated with a viscous compound, radially external to the conductive core (13), an outer semiconducting layer (18) radially external to the cable insulation layer (16) and at least one protecting layer radially external to the outer semiconducting layer. A joint for splicing two HV impregnated cables and a power supply line comprising at least one joint are disclosed.
Abstract:
An insulated composite power cable having a wire core defining a common longitudinal axis, a multiplicity of composite wires around the wire core, and an insulative sheath surrounding the composite wires. In some embodiments, a first multiplicity of composite wires is helically stranded around the wire core in a first lay direction at a first lay angle defined relative to a center longitudinal axis over a first lay length, and a second multiplicity of composite wires is helically stranded around the first multiplicity of composite wires in the first lay direction at a second lay angle over a second lay length, the relative difference between the first lay angle and the second lay angle being no greater than about 4o. The insulated composite cables may be used for underground or underwater electrical power transmission. Methods of making and using the insulated composite cables are also described.
Abstract:
A coaxial cable continuity connector comprising a connector body, a post engageable with connector body, wherein the post includes a flange having a tapered surface, a nut, wherein the nut includes an internal lip having a tapered surface, wherein the tapered surface of the nut oppositely corresponds to the tapered surface of the post when the nut and post are operably axially located with respect to each other when the coaxial cable continuity connector is assembled, and a continuity member disposed between and contacting the tapered surface of the post and the tapered surface of the nut, so that the continuity member endures a moment resulting from the contact forces of the opposite tapered surfaces, when the continuity connector is assembled, is provided.
Abstract:
The present disclosure includes techniques for combining signal power. In one embodiment, a plurality of power amplifiers (101-104) generate amplified signals. A plurality of first transmission lines are electrically coupled to outputs of the power amplifiers (101-104). Second tramsmission lines (111-114) are magnetically coupled to the first transmission lines to receive the amplified signals. The amplified signals propagate down the second transmission lines to a central conductive region (110) to a node (151). The amplified signals are addedat the node. The node is coupled to an antenna terminal (150). Embodiments show the second transmission lines (111-114) and the central conductive region 8110) forming a radial combiner/splitter. They show further differential power amplifiers (101-104) having strip line baluns composed of the first and second transmission lines ( 111-114).
Abstract:
A method of thermally rounding a section of a non-circular optical fiber is provided. The method includes heating the section of the optical fiber with a sweeping motion along a direction substantially parallel to an optical axis of the optical fiber by at least one of moving the optical fiber with respect to a heat source and moving the heat source with respect to the optical fiber, such that a cross-section of an inner cladding of the section of the optical fiber becomes substantially circular.