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).

An electrical assembly comprising a housing forming a liquid tank inside thereof, dielectric liquid in the liquid tank, at least one fuse, and a blown fuse indication system. Each of the fuses is immersed in the dielectric liquid, and is provided with a striker pin. The blown fuse indication system is adapted to indicate a blowout of any one of the fuses by an indication signal. The blown fuse indication system comprises a first indication member and a second indication member. The first indication member is movable by the striker pins. The second indication member is immovably connected to the housing, and adapted to generate the indication signal as a response to relative movement between the first indication member and the second indication member.

A fuse tube device is disclosed. The fuse tube device is allowed to be assembled with an insulation device so as to form a load break fuse cutout fully closed. The fuse tube comprises: an insulation housing, an accommodation tube, a first electrical connection unit, a second electrical connection unit, a conductive rod, a fuse element, a first conductive plate, a first cover, a second conductive plate, and a second cover. When assembling the fuse tube device with the insulation device, a first embedding member and a second embedding member of the insulation housing are embedded into a first terminal connecting opening and a second terminal connecting opening of the insulation device, such that the first electrical connection unit and the second electrical connection unit contact a first terminal connecting member and a second terminal connecting member of the insulation device, respectively.

A fuse includes a body, a first conductive terminal coupled with a first end of the body, and a second conductive terminal coupled with a second end of the body. The body, the first conductive terminal, and the second conductive terminal define an exterior of the fuse. The fuse also includes an interruption assembly including a fusible element. The fusible element includes carbon fiber, is disposed on a conductive path between the first conductive terminal and the second conductive terminal, and is configured to break when a current through the fusible element exceeds a predetermined current.

An electrical assembly comprising a housing forming a liquid tank inside thereof, dielectric liquid in the liquid tank, at least one fuse. and a blown fuse indication system. Each of the fuses is immersed in the dielectric liquid, and is provided with a striker pin. The blown fuse indication system is adapted to indicate a blowout of any one of the fuses by an indication signal. The blown fuse indication system comprises a first indication member and a second indication member. The first indication member is movable by the striker pins. The second indication member is immovably connected to the housing. and adapted to generate the indication signal as a response to relative movement between the first indication member and the second indication member.

A strike pin assembly for a fuse assembly in which the strike pin assembly is maintained in a locked position by a holding force of a filament and an interference provided by a plurality of retention bodies. Upon a breakage of the filament, such as, for example, in response to heat generated by operation of a fuse element, a trigger can be displaced via a first biasing force in a distal direction such that the trigger is positioned at a location that does not impede an inward displacement of a plurality of retention bodies from a recess of a firing pin. Upon the inward displacement of the retention bodies, a second biasing force can displace the firing pin in the distal direction such that a portion of the firing pin can protrude out from an adapter of the strike pin assembly.

A surge arrester includes a polymer body or housing and a varistor assembly in the body or housing. The varistor assembly includes a plurality of varistor elements and a fuse electrically connected in series and forming a vertical stack of the plurality of varistor elements and the fuse. The stack has a first end surface, a second end surface, and a side surface extending between the first end surface and the second end surface. The varistor assembly includes a first end fitting at the first end surface of the stack and a second end fitting at the second end surface of the stack.

A surge arrester includes a polymer body or housing and a varistor assembly in the body or housing. The varistor assembly includes a plurality of varistor elements and a fuse electrically connected in series and forming a vertical stack of the plurality of varistor elements and the fuse. The stack has a first end surface, a second end surface, and a side surface extending between the first end surface and the second end surface. The varistor assembly includes a first end fitting at the first end surface of the stack and a second end fitting at the second end surface of the stack.

A high voltage fuse adapter system and method. A fuse adapter system includes an indicator-end adapter configured to circumferentially enclose an indicator-end terminal of a high voltage IEC rated fuse, including a hollow portion having an inner diameter that surrounds the indicator-end terminal, the hollow portion including at least one axially extending slot compressible around the indicator-end terminal, and an indicator portion, a piston and needle enclosed within the indicator portion, the piston and needle coupled to a striker of the high voltage IEC-rated fuse such that upon extension of the striker, the piston at least partially actuates the needle outside of the indicator-end adapter, a non-indicator-end adapter configured to circumferentially enclose a non-indicator-end terminal of the high voltage fuse, and a pair of end caps enclosing the indicator-end adapter and the non-indicator end adapter to form an adapted fuse configured to fit in an UL-style fuse mounting.

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).