H01H31/127

Squirrel guard for high voltage insulator cover
10566166 · 2020-02-18 · ·

For protecting wildlife from high voltage conductors proximate to a utility pole, dielectric covers are used to cover fuse cutouts, bushings, solid-blade disconnects, lightning arrestors, or other connections to insulators. Such covers include a vertical slot for receiving an energized wire so the cover can be installed using a hot-stick while the wire is energized. The vertical slot substantially faces the utility pole. To prevent squirrels storing nuts in the cover via the vertical slot, a squirrel guard is fitted over the top of the cover to block access to the vertical slot in the cover. The guard has a second vertical slot for receiving the wire so can be installed while the wire is energized. The guard may be customized for the particular cover used with it. Retaining pins secure the guard and cover in place.

Load break tool having rotational flexibility

A load break tool is disclosed. The load break tool includes a main housing; a sleeve having a first end and a second end coaxially mounted in the main housing and slidable between a retracted position and an extended position, wherein the second end of the sleeve remains in the main housing in the extended position; a clip assembly connected to the main housing for engaging a pull ring of a circuit isolating device; and a hook engaging terminal rotatably connected to the first end of the sleeve, such that the hook engaging terminal rotates relative to the clip assembly.

Fuse end cap having displaceable alignment pin
11961691 · 2024-04-16 · ·

A fuse assembly having a displaceable pin assembly secured within a cap bore of an end cap of the fuse assembly. The displaceable pin assembly can include a plunger that is selectively displaceable along an axis that is non-parallel to a central longitudinal axis of the first end cap. The plunger can be selectively displaceable between an extended position at which at least a first end of the plunger is outwardly positioned away from an outer surface of the first end cap, and a recessed position at which the first end of the plunger is recessed within, or generally aligned with the outer surface of, the first end cap. The displaceable pin assembly can also include a biasing element that can bias the plunger to the extended position, and a support body that can house at least a portion of the plunger and be securely coupled to the cap bore.

Cutout for use in electrical distribution network

The embodiment of the present disclosure provides a cutout which can comprise a top contact assembly being capable of electrically coupled with a first electric cable; a bottom contact assembly being capable of electrically coupled with a second electric cable; an insulator assembly secured to the top contact assembly in a first end thereof, and secured to the bottom assembly in a second end thereof opposite to the first end; and a tube assembly having a fuselink placed therein for conducting electricity between the top contact assembly and a bottom contact assembly. The bottom contact assembly has a bottom contact member which is capable of electrically coupled with the second electrical cable at one end thereof, and removeably coupled with the tube assembly at the other end thereof, such that a current path is formed from the second electrical cable to the tube assembly via the bottom contact member.

Vacuum Interrupter Fuse
20240234068 · 2024-07-11 · ·

A CutOut, comprising a first electrical connection rod; a second electrical connection rod; a first contact; a second contact; and a fuse wire; wherein the first contact is mounted to the first electrical connection rod; wherein the second contact is mounted to the second electrical connection rod; wherein when a current below a threshold levels flows through the vacuum-based fuseCutOut or no current flows through the vacuum-based fuseCutOut the vacuum-based fuseCutOut is configured to hold the first contact a fixed distance from the second contact and the fuse wire is configured to electrical connect the first electrical connection rod to the second electrical connection rod; and wherein when a current at or above the threshold flows through the vacuum-based fuseCutOut the fuse wire is configured to electrically disconnect the first electrical connection rod from the second electrical connection rod.

Use of a HV HRC fuse for a drop-out fuse system
12051555 · 2024-07-30 · ·

A HV HRC fuse, in particular a HH full-range fuse, for a drop-out fuse system with a drop-out release mechanism has an outer fuse housing, wherein at least one melting conductor, which is wound around at least one winding body, is provided in the fuse housing. The fuse housing is at least partially open on two end faces and a contact cap designed for electrical contacting is arranged on each end face of the fuse housing. The upper contact cap is detachably connectable in a contacting position with the drop-out release mechanism and the lower contact cap is pivotally mounted on the drop-out release mechanism. Tripping of the HV HRC fuse results in tripping of the drop-out release mechanism, whereby the upper contact cap is separated from the drop-out release mechanism and the HV HRC fuse swings out from the contacting position to a swing-out position.

Fuse insulating support bracket with pre-molded shed

A support bracket for a fuse cutout may include an insulating rod with a first threaded standoff at a top end of the insulating rod and a second threaded standoff at a bottom end of the insulating rod. One or more shed sleeves may be secured over an outside surface of the insulating rod between the first threaded standoff and the second threaded standoff. The interior surface of the one or more shed sleeves forms a dielectric interface between the outside surface of the insulating rod and the interior surface of the shed sleeve. A mounting bracket may be secured to a portion of the support bracket between the first threaded standoff and the second threaded standoff. The one or more shed sleeves may be pre-molded prior to installation over the insulating rod.

Fuse cutout insulator

A fuse cutout insulator for use in power distribution systems includes three electrically conductive pieces spaced apart and encapsulated by a dielectric material. The conductive components include a top hood, bottom pin, and central pin. The central pin is generally tube shaped and includes an outwardly extending flange to facilitate attachment of the fuse cutout to a utility pole. The top hood and bottom hinge include the traditional components for operable holding of a fuse tube member. The top hood and bottom hinge are accepted in opposite ends of the central pins bore and sealed in spaced relationship during manufacturing by the dielectric material added for fabricating the weathersheds.

Cutout cover
09916956 · 2018-03-13 · ·

A fuse cutout assembly cover including an insulator cover end for positioning over a cutout assembly insulator and including a shield end for shielding a cutout upper contact assembly. An intermediate portion between the insulator cover end and the shield end can have detents for retaining the cover in place on the fuse cutout assembly. The fuse cutout cover can include a plurality of hole and slot arrangements to provide multiple access sites for an installation tool such as a shotgun stick or other hot stick tool. Methods of manufacturing fuse cutout assembly covers are also disclosed.

In-line cable termination systems for electrical power transmission cables and methods using the same

An in-line cable termination system for use with first and second electrical power transmission cables includes an isolating apparatus having an isolating apparatus axis and including an electrically conductive first end member and an electrically conductive second end member, first and second insulators, and a fused switch mechanism. The first end member and the second end member are spaced apart along the isolating apparatus axis. Each of the first and second end members includes a respective coupling portion to mechanically and electrically engage the first and second cables, respectively. The first and second insulators each extend between and couple the first end member and the second end member. The fused switch mechanism includes a fuse module and is configured to selectively alternatively electrically connect the first and second end members, and thereby the first and second cables, through the fuse module and disconnect the first and second end members.