Patent classifications
H01B7/285
Systems and Methods for Injecting Electrical Cables with a Fluid
An adapter probe configured for injecting fluid (e.g., liquid, gas) into at least one electrical cable. Particularly for injecting an electrical cable with a fluid when the electrical cable is affixed to a separable connector (e.g., elbow separable connector). Separable connector may be configured to connect sources of energy (e.g., transformer, circuit breaker) with distribution systems via electrical cable (or cable section).
POWER CABLE WITH CONDUCTOR STRAND FILL CONTAINING RECYCLED CROSSLINKED COMPOUNDS
A power cable and a process of manufacturing a power cable, where the power cable includes a core containing stranded electrically conductive wires that are impregnated with a water-blocking composition, wherein the water-blocking composition contains, based on a total weight of the water-blocking composition: (i) a thermoplastic polymer; and (ii) a positive amount of up to 30 wt % of a crosslinked polymer, where the crosslinked polymer is in the form of a powder having a particle diameter less than 900 μm and the crosslinked polymer is dispersed in the thermoplastic polymer.
METHOD OF PREVENTING MOISTURE INTRUSION THROUGH THE CABLE EXIT OF AN ENCLOSURE
Systems, devices, and methods including: a cable; a housing having a tapered exit hole connected to an internal volume; a tapered seal having a tapered outer surface and an inner aperture, where the inner aperture of the tapered seal receives the cable; an encapsulant disposed in the internal volume and about one or more wires of the cable; and a compression cap placed over the tapered seal and about a flange of the housing to compress the tapered seal into the tapered exit hole; where compression from the compression cap forces the encapsulant up inside the cable and around the one or more wires of the cable, and where curing of the encapsulant seals the cable from moisture incursion.
PRODUCTION METHOD FOR INSULATED ELECTRIC WIRE AND INSULATED ELECTRIC WIRE
Provided is an insulated electric wire with a conductor of a plurality of twisted elemental wires made of a conductive material, and an insulation covering. The wire comprises an exposed portion in which the insulation covering is removed, and a covered portion in which the insulation covering covers the conductor. The exposed portion and the covered portion are adjacent with each other along a longitudinal axis of the wire. The covered portion comprises an adjacent area located adjacent to the exposed portion, and a remote area located adjacent to the adjacent area and apart from the exposed portion. A density of the conductive material per unit length is higher in the exposed portion than in the remote area. The elemental wires are twisted in both the exposed portion and the remote area. Gaps between the elemental wires of the exposed portion are filled with a sealant.
PRODUCTION METHOD FOR INSULATED ELECTRIC WIRE AND INSULATED ELECTRIC WIRE
Provided is an insulated electric wire with a conductor of a plurality of twisted elemental wires made of a conductive material, and an insulation covering. The wire comprises an exposed portion in which the insulation covering is removed, and a covered portion in which the insulation covering covers the conductor. The exposed portion and the covered portion are adjacent with each other along a longitudinal axis of the wire. The covered portion comprises an adjacent area located adjacent to the exposed portion, and a remote area located adjacent to the adjacent area and apart from the exposed portion. A density of the conductive material per unit length is higher in the exposed portion than in the remote area. The elemental wires are twisted in both the exposed portion and the remote area. Gaps between the elemental wires of the exposed portion are filled with a sealant.
Assembly and method for sealing a bundle of wires
A sealing assembly for sealing a bundle of wires includes a first sheet formed of a sealant material, a second sheet disposed above the first sheet, and a third sheet disposed above the second sheet formed of the sealant material. The second sheet includes a thermally conductive material. When the bundle of wires is overlaid on the assembly in a first direction, and the assembly is wrapped in a second direction that is generally perpendicular to the first to thereby surround the wires, the second sheet facilitates enhanced thermal energy distribution of applied heat throughout the assembly to thereby more uniformly melt the sealant material and thereby fill voids between the wires.
Assembly and method for sealing a bundle of wires
A sealing assembly for sealing a bundle of wires includes a first sheet formed of a sealant material, a second sheet disposed above the first sheet, and a third sheet disposed above the second sheet formed of the sealant material. The second sheet includes a thermally conductive material. When the bundle of wires is overlaid on the assembly in a first direction, and the assembly is wrapped in a second direction that is generally perpendicular to the first to thereby surround the wires, the second sheet facilitates enhanced thermal energy distribution of applied heat throughout the assembly to thereby more uniformly melt the sealant material and thereby fill voids between the wires.
GAS AND FLUID BLOCKED CABLE
An electromechanical cable that has fluid/gas migration protection is provided as well as a method for manufacturing a fluid/gas migration protected electromechanical cable. The cable can include a core having at least one conductor or fiber optic, a first jacket layer surrounding the core, a sealing layer surrounding the first jacket layer, and a first armor layer surrounding the sealing layer. In one embodiment, the sealing layer can be applied to the cable in a viscous material state and may be a two-part epoxy or synthetic filler material to form a seal between one or more spaces between the armor wire layer and the first jacket layer. In one embodiment, the sealing layer can be applied to the cable in a solid material state and may be a thermoplastic elastomer or silicone-based material or a combination of both.
GAS AND FLUID BLOCKED CABLE
An electromechanical cable that has fluid/gas migration protection is provided as well as a method for manufacturing a fluid/gas migration protected electromechanical cable. The cable can include a core having at least one conductor or fiber optic, a first jacket layer surrounding the core, a sealing layer surrounding the first jacket layer, and a first armor layer surrounding the sealing layer. In one embodiment, the sealing layer can be applied to the cable in a viscous material state and may be a two-part epoxy or synthetic filler material to form a seal between one or more spaces between the armor wire layer and the first jacket layer. In one embodiment, the sealing layer can be applied to the cable in a solid material state and may be a thermoplastic elastomer or silicone-based material or a combination of both.
OPTO-ELECTRIC CABLE
Disclosed is an opto-electric cable including one or more electrical conductors. Each conductor includes an electrically conductive core and an electrically insulating layer surrounding it. The cable also includes an optical unit embedded within one of the electrically conductive cores. The optical unit includes at least two optical fibers and a single buffer jointly surrounding all the optical fibers. Each optical fiber includes a core, a cladding and a coating. Since all the optical fibers of the optical unit are jointly surrounded—and protected—by a single buffer, an optical unit with a reduced size is obtained. This allows reducing the cross section of the electrical conductor in which the optical unit is arranged. In particular, electrical conductors with cross section lower than 10 mm.sup.2 are obtained.