An electrical bushing is specified, the bushing including a flange with a lower part and an upper part affixed to one another and further including a core surrounded by the flange, wherein the flange is affixed to the core by a locking compound disposed in a volume of a joint between the flange and the core, and wherein the volume of the joint further includes a compressible material, the compressible material being configured to compress or expand in response to a change in the volume of the joint.

Furthermore, a method of producing an electrical bushing is specified.

A grommet includes: a water stop portion that has an annular shape and is inserted to a through hole formed in an attachment panel for stopping water; and a first partition wall portion and a second partition wall portion that are unit arranged to project toward a radially inner side of the water stop portion water stop portion. The water stop portion includes: a first contact portion that is capable of coming into contact with a first side surface of a circumference edge portion of the through hole; a second contact portion that is capable of coming into contact with the first side surface; a groove portion formed in an annular shape between the first contact portion and the second contact portion; and a recess/protrusion portion that is formed on a circumferential wall inside the groove portion.

A grommet includes a water stop part having an annular shape that stops water by being inserted into a through hole formed on a mounting panel, and a first partition wall part or a second partition wall part disposed so as to close the annular shape of the water stop part by extending in a radially inner side of the water stop part. The water stop part includes an abutting surface formed in an annular shape capable of coming into contact with one side of a peripheral part of the through hole in an axial direction, and a plurality of claw parts that face the abutting surface in the axial direction, that are capable of coming into contact with another side of the peripheral part of the through hole, and that are intermittently provided in a circumferential direction.

A grommet includes a ring-shaped water stop portion inserted into a through hole formed in an attachment panel and performing water stopping, a closing portion projecting toward radial inside of the water stop portion and closing a ring shape of the water stop portion, a tube portion extending in a direction crossing an axis direction of the water stop portion and provided to penetrate the closing portion and through which a wire material is inserted, and a handle portion provided in an arch shape with respect to the closing portion with a central axis of the water stop portion serving as a center.

A flange fitted around a round cylindrical condenser core of a bushing is described. The flange comprises an annular lower flange part arranged to fit around a radial shoulder of the condenser core such that a lower shoulder chamfer of the shoulder rests against lower flange chamfer of the lower flange part around the circumference of the condenser core; and an annular upper flange part fastened to the lower flange part and fits around the condenser core above an upper shoulder chamfer of the shoulder. An upper flange chamfer of the upper flange part is between an upper sealing element and a lower sealing element, forming an annular chamfer space is formed between the upper flange chamfer and the upper shoulder chamfer between the upper and lower sealing elements. The flange comprises an injection through hole for a filler material to be injected there through to fill the chamfer space.

An explosion-proof structure includes a partition wall that partitions a sealed space in a container and wiring that connects the interior and the exterior of the sealed space. The partition wall includes a filling portion through which the wiring passes. The filling portion includes an inner peripheral wall surface that defines an opening having a central axis that passes through the partition wall, a filler that seals a gap between the inner peripheral wall surface and the wiring, a first peripheral groove provided on the inner peripheral wall surface and filled with the filler, and a second peripheral groove provided on the inner peripheral wall surface and filled with the filler. This explosion-proof structure is capable of improving the seal of the filling portion.

Embodiments of the present disclosure relate to a sealing arrangement of a bushing for a power electrical device and a bushing comprising the sealing arrangement. The sealing arrangement includes a top cover; a central conductor going through the top cover; a guide element having a cylinder portion and a flange portion extended from a middle part of the cylinder portion, wherein the cylinder portion is arranged between the top cover and the central conductor, and the flange portion is connected onto the top cover; a static sealing structure provided between the guide element and the top cover; and a dynamic sealing structure provided between the guide element and the central conductor. With the new sealing structure design, it could provide a good sealing performance so that the bushing can be used in various environments.

A flange for an electrical bushing is specified, comprising a lower part and an upper part configured to be mechanically affixed to one another, wherein the lower part and the upper part are arranged one above the other in an axial direction of the flange, and one of the lower part and the upper part surrounds a portion of the other one of the lower part and the upper part at least in regions in a radial direction, thereby forming a positive connection against relative movement of the upper part with respect to the lower part in a non-axial direction of the flange.

Furthermore, an electrical bushing is specified.

The application of a titanium hydride coating on a ceramic, preferably an alumina ceramic, as a facile and inexpensive approach to bond gold to the ceramic during brazing is described. During the brazing process, the deposited titanium hydride is first partially decomposed to form pure titanium intermixed with titanium hydride. The combination of pure titanium and titanium hydride contributes to improved adhesion of gold with the alumina ceramic without any detrimental reaction between pure titanium and gold. The titanium hydride coating can be applied by dip/spray/paint coating.

An explosion-proof structure includes a partition wall that partitions a sealed space in a container and wiring that connects the interior and the exterior of the sealed space. The partition wall includes a filling portion through which the wiring passes. The filling portion includes an inner peripheral wall surface that defines an opening having a central axis that passes through the partition wall, a filler that seals a gap between the inner peripheral wall surface and the wiring, a first peripheral groove provided on the inner peripheral wall surface and filled with the filler, and a second peripheral groove provided on the inner peripheral wall surface and filled with the filler. This explosion-proof structure is capable of improving the seal of the filling portion.