The invention relates to a melting conductor (1) provided for use for a fuse (2), preferably for a miniature fuse, with an electrically conductive melting wire (3). According to the invention an electrically insulating and/or electrically non-conductive covering (5) surrounding the outer shell surface (4) of the melting wire (3) at least in certain areas, preferably completely, is provided.

The invention relates to an use of a melting conductor (1) for a DC fuse (2) and a high-voltage high-power fuse (2) (HH-DC fuse), wherein the melting conductor (1) comprises an electrically conductive melting wire (3), wherein the melting wire (3) comprises at least two overload narrow sections (4) in the form of a cross-sectional constriction, wherein, preferably between the two immediately successive overload narrow sections (4) a first layer (7) comprising solder and/or surrounding the outer shell surface (6) of the melting wire (3) circumferentially at least in some areas, preferably completely, is provided in at least one first section (5), and wherein a second layer (9) surrounding the outer shell surface (6) of the melting wire (3) circumferentially at least in some areas, preferably completely, is provided adjacent to each of the overload narrow sections (4) in a respective second section (8).

A sub-structure element support system is disclosed. The sub-structure element support system includes a novel molded structure designed to support an electrical element, such as a fuse. The molded structure is a protective and insulative sleeve for the electrical element and reduces forces on the electrical element during free-fall and operation conditions. The molded structure also facilitates automation during manufacturing and reduces cost.

Provided herein are protection devices having U-shaped fuse elements. In some embodiments, a protection device may include a housing defining a cavity, and a fuse element within the cavity. The fuse element may include a first component and a second component separated by a barrier, and wherein the first and second components are joined at a fusible bridge.

A sub-structure element support system is disclosed. The sub-structure element support system includes a novel molded structure designed to support an electrical element, such as a fuse. The molded structure is a protective and insulative sleeve for the electrical element and reduces forces on the electrical element during free-fall and operation conditions. The molded structure also facilitates automation during manufacturing and reduces cost.

A method of making a fuse including inserting a fuse element into a cavity in a hollow fuse body, attaching a first end cap to the hollow fuse body and electrically connecting a first end of the fuse element to the first end cap, adding a mixture of particles including a melamine compound and a steatite of at least 2 times the melamine compound by weightto the cavity such that the mixture of particles are disposed around the fuse element, and attaching a second end cap to the hollow fuse body and electrically connecting a second end of the fuse element to the second end cap.

A fuse cutout cover is disclosed that allows a lineman to engage a metal hook assembly and pull ring of the cutout with a loadbreak tool at a wide range of angles, while the cover still prevents electrocution of wildlife. A first portion of the cover has a vertical opening for receiving the wire. A second portion has a substantially flat roof portion that covers the top portion of the fuse, the hook assembly, and the pull ring. The hook assembly and pull ring are laterally exposed by the cover to allow the loadbreak tool to engage the hook assembly and pull ring at a wide range of angles. Another feature of the cover is multiple sets of through-holes for securing pins so that the pin locations can be optimized for ceramic insulators and narrower polymer insulators.

A fuse cutout cover is disclosed that allows a lineman to engage a metal hook assembly and pull ring of the cutout with a loadbreak tool at a wide range of angles, while the cover still prevents electrocution of wildlife. A first portion of the cover has a vertical opening for receiving the wire. A second portion has a substantially flat roof portion that covers the top portion of the fuse, the hook assembly, and the pull ring. The hook assembly and pull ring are laterally exposed by the cover to allow the loadbreak tool to engage the hook assembly and pull ring at a wide range of angles. Another feature of the cover is multiple sets of through-holes for securing pins so that the pin locations can be optimized for ceramic insulators and narrower polymer insulators.

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.

An anti-surge winding fusible resistor fuse includes: a first column, in combination with a first cap, a first fuse wire wound around the first column at intervals and in combination with the first cap; a second fuse wire, coated on a second column in combination with the first column; a first ring, configured on a contact of the first column with the second fuse wire, and the first fuse wire in combination with the first ring; an insulation body, in combination with the second fuse wire; a third column, in combination with the insulation body and a second cap, a third fuse wire wound around the third column at intervals and in combination with the second cap; and a second ring, covered on the second fuse wire, insulation body and third column, and the third fuse wire in combination with the second ring.