A method for producing an electrical bushing with a multi-part inner conductor arranged at least in some sections in an outer tube made from metal and electrically insulated from the outer tube by an electrically insulating material. The inner conductor of the finished bushing has at least one contact section protruding out of the outer tube and a bearing section that is arranged within the outer tube and that is compressed with the electrically insulating material. The outer tube made from metal to form a composite for supporting the at least one contact section. The at least one contact section and the bearing section compressed with the electrically insulating material and the outer tube made from metal to form the composite for supporting the at least one contact section are prepared as separate assemblies and then connected to each other.

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.

The invention relates to an explosion-proof assembly (22) having an electrically conductive stud (23) made of a material which is not deformable radially. The stud (23) is coaxially surrounded in a central portion (23a) by an electrically insulating, electrically insulating sleeve (30). The sleeve (30) is in turn coaxially surrounded by a connecting portion (41) of a plastically deformable connecting body (40). Plastic deformation of the connecting portion (41) reduces the outer dimension thereof and the connecting portion (41) presses inwardly against the sleeve (30) to form a frictionally engaged form-fitting connection therebetween such that the connecting body (40), the sleeve (30) and the stud (23) form a structural unit with at least one stop surface (26) on the stud (23) resting against a counter stop surface of the sleeve (30).

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.

An explosion-proof line bushing and method for producing the line bushing. A prespecified amount of elastomeric material is applied to a line and completely surrounds the line in a flat section in the circumferential direction. The line is inserted into a passage opening of a bushing body. The bushing body is preferably plastically deformed. After the plastic deformation, the elastomeric material substantially fills the volume remaining between the formed bushing body and line. The elastomeric material is elastically deformed and presses both against the line and the formed bushing body, so that flame-proof gaps are formed between the bushing body and the line. The applied mass of the elastomeric material is determined depending on the inner volume between the formed bushing body and the line remaining.

The invention refers to an electrical connection (10) comprising a bushing (12) having a geometric central axis (14), an electrical conductor (16) passing through said bushing (12) along the geometric central axis (14), and an insulating layer (18) electrically insulating said bushing (18) from said conductor (16). It is suggested that the bushing 12, the insulating layer (18) and the electric conductor (16) are pressed together, preferably during a rotary forging process, in order to achieve a mechanical cold transformation.

The feed-through assembly provides for the conveyance of a feed element from one boundary environment to another. The feed-through assembly includes the following components (from bottom to top) each with an axially extending aperture through which at least one feed element passes: lower compression member; packing stack including a plurality of packing buttons; and upper compression member. The plurality of packing buttons are made from expanded polytetrafluoroethylene (ePTFE) foam material (e.g., GORE-TEX). A portion of the feed element is sealed within the packing stack including the plurality of packing buttons after it is compressed between the two compression members. The feed-through assembly is very cost effective and easy to make, but provides solutions to sealing problems under severe conditions or for extremely demanding requirements.

The invention relates to an explosion-proof assembly (22) having an electrically conductive stud (23) made of a material which is not deformable radially. The stud (23) is coaxially surrounded in a central portion (23a) by an electrically insulating, electrically insulating sleeve (30). The sleeve (30) is in turn coaxially surrounded by a connecting portion (41) of a plastically deformable connecting body (40). Plastic deformation of the connecting portion (41) reduces the outer dimension thereof and the connecting portion (41) presses inwardly against the sleeve (30) to form a frictionally engaged form-fitting connection therebetween such that the connecting body (40), the sleeve (30) and the stud (23) form a structural unit with at least one stop surface (26) on the stud (23) resting against a counter stop surface of the sleeve (30).

The present disclosure relates to a bushing comprising a conductor tube, a support tube, arranged within the conductor tube, a draw-rod configured to run through the support tube, and a contact arrangement arranged to be drawn into the conductor tube by the draw-rod. The contact arrangement comprises a sealing plug arranged for sealingly engaging an inside wall of the conductor tube to prevent liquid from passing the sealing plug into the conductor tube.