A helical jumper connector includes a helical support member configured to support a wire. The helical support member includes a first leg having a first helical winding and a second leg having a second helical winding that defines a second axial opening. The first axial opening and the second axial opening are coaxial with the wire when the first helical winding and the second helical winding are wrapped around the wire and cooperatively engage with one another to support the wire. A jumper casting is configured to receive the helical support member. The helical support member and the jumper casting are electrically conductive such that the helical jumper connector forms an electrically conductive pathway to carry electrical current from the wire. A method of making a helical jumper connector assembly includes applying a compression force to a helical jumper connector comprising a helical support member received in a jumper casting.

An anti-rotation clamp and method of use may include a bolt having a threaded body along which a stabilizer moves relative to the threaded body, a stabilizer and an engagement member which engages the stabilizer to prevent relative rotation between the stabilizer and the engagement member as the threaded body is rotated.

A clamp for supporting an electrical conductor on a structure and providing electrical continuity between the electrical conductor and the structure is provided. The clamp can include a mounting member with a through-hole and a strap, that can be configured to extend around the structure, coupled on one end to a first side of the mounting member and having a free end removably coupled to a second side of the mounting member. The clamp can include a clamping member with a through-hole and a main bolt extending through the through-holes of the mounting member and the clamping member. The main bolt can have a footer configured to contact the structure, which can be movable between a first configuration in which the footer is nested within a pocket of the mounting member and a second configuration in which at least a portion of the footer is positioned outside of the pocket.

An electric transmission line support structure. A first vertical shaft and a parallel second vertical shaft are connected by a crossarm. A first conductor attachment point is connected to the first vertical shaft at a first vertical shaft attachment by a first structural string. A second conductor attachment point is connected to the second vertical shaft at a second vertical shaft attachment point by a second structural string and to the first conductor attachment point by a third structural string. A third conductor attachment point connected to the first vertical shaft at a third vertical shaft attachment point by a fourth structural string and to the second vertical shaft at a fourth vertical shaft attachment point by a fifth structural string. The third vertical shaft attachment point is below the first vertical shaft attachment point, and the fourth vertical shaft attachment point is below the second vertical shaft attachment point.

An electric transmission line support structure. A first vertical shaft and a parallel second vertical shaft are connected by a crossarm. A first conductor attachment point is connected to the first vertical shaft at a first vertical shaft attachment by a first structural string. A second conductor attachment point is connected to the second vertical shaft at a second vertical shaft attachment point by a second structural string and to the first conductor attachment point by a third structural string. A third conductor attachment point connected to the first vertical shaft at a third vertical shaft attachment point by a fourth structural string and to the second vertical shaft at a fourth vertical shaft attachment point by a fifth structural string. The third vertical shaft attachment point is below the first vertical shaft attachment point, and the fourth vertical shaft attachment point is below the second vertical shaft attachment point.

A bracket device to secure one or more tail wires of one or more drop clamps to a utility pole. The bracket device includes one or more support ribs extending perpendicularly from the bracket base, and attached to one or more side supports. The support ribs and side supports define one or more retention regions along the side of the bracket based. A plurality of securing bolts can be cooperatively coupled to the side supports and define secondary retention regions. The securing bolts may be moved between an open position and a closed position. The bracket device can further comprise a top loop, which extends from the bracket base, and which can be coupled to additional wires. The bracket device can be secured to a utility pole or similar structure by a single fastening component, which is configured to pass through the cavity of the bracket base.

Devices, systems, and methods are provided for compact transmission lines structure. A compact transmission lines structure may comprise a first subsystem of a pole and a crossarm, wherein the crossarm is stacked above the pole, wherein the crossarm comprises a cantilever end situated away from the pole. The compact transmission lines structure may comprise a second subsystem connected to the cantilever end. The second subsystem comprising a first diamond-shaped insulator assembly supporting a first single three-phase transmission line. The compact transmission lines structure may comprise a third subsystem connected to the cantilever end, the third subsystem comprising a second diamond-shaped insulator assembly supporting a second single three-phase transmission line, wherein the second diamond-shaped insulator assembly mirrors the first diamond-shaped insulator assembly. The compact transmission lines structure may comprise at least two shield wires configured to provide lightning protection.

A dielectric cover for an insulator, supporting a high voltage conductor in an electrical distribution system, has holes for receiving retaining pins. The retaining pins are used to secure the cover over the insulator and conductor. Arched fenders, which may be circular or have a bottom opening, extend out from the cover and overlie the holes and ends of the pins. The fenders prevent birds roosting on the pin, increase the dielectric surface length between the top of the cover and the electrical conductor above the pins, and protect the pins from contamination issues which would reduce the dielectric properties of the pins. Contamination issues include birds defecating on the pins, which can create a conductive path between the bird and the inside of the cover, and atmospheric moisture such as rain, snow, and ice on the pins. Thus, wildlife is protected from electrocution.

A dielectric cover for an insulator, supporting a high voltage conductor in an electrical distribution system, has holes for receiving retaining pins. The retaining pins are used to secure the cover over the insulator and conductor. Arched fenders, which may be circular or have a bottom opening, extend out from the cover and overlie the holes and ends of the pins. The fenders prevent birds roosting on the pin, increase the dielectric surface length between the top of the cover and the electrical conductor above the pins, and protect the pins from contamination issues which would reduce the dielectric properties of the pins. Contamination issues include birds defecating on the pins, which can create a conductive path between the bird and the inside of the cover, and atmospheric moisture such as rain, snow, and ice on the pins. Thus, wildlife is protected from electrocution.

A clamp-type line post insulator is disclosed. The clamp-type line insulator is provided with a thread clamping device, and comprises: a body, a cable clamp, an insulation unit and an adjustable fixing unit. In the present invention, the body comprises: a receiving recess, a fixing base and a cable groove. Moreover, a pivoting end of the cable clamp pivotally connected to a pivot member that is formed on the fixing base. Particularly, after placing an electrical cable in the cable groove, the cable clamp is rotated by taking the pivot member as an axle center, thereby inserting an engaging end of the cable clamp into the engagement groove to engage with it. By such arrangements, the electrical cable be pressed and fixed in the cable groove by rotating the adjustable fixing unit.