Multi-phase layered busbar for conducting electric energy wherein the layers are glued together, method of manufacturing the same and switchboard cabinet including such a busbar

Abstract

A multi-phase busbar (1) for conducting electric energy, comprising an optional base layer (2) of an insulating material, a first conducting layer (4a) of a sheet metal, a first 10 insulating layer (6a) of an insulating material arranged on said first conducting layer (4a), a second conducting layer (4b) of a sheet metal arranged on said insulating layer (6a) and a second layer (6b) of an electrically insulating material which is arranged on said second conducting layer (4b), wherein said first and second conducting layers (4a, 4b) may comprise a coating (14) of an electrically insulating material and said first and / or second insulating layers (6a, 6b) comprise spacers each spacer comprising a layer (6) of a rigid insulating material wherein at least one of said spacers (6a, 6b) is glued to an electrically insulating coating (14) of said first and / or second conducting layer (4a, 4b) and / or 20 at least one of said spacers (6a, 6b) is glued to a conductive surface of an uncoated first and / or second conducting layer (4a, 4b) by means of an adhesive (7).

Description

technical field [0001] The invention relates to a multiphase busbar according to the preambles of claims 1, 2, 13, 14 and 16, a method of manufacturing the busbar and a switch board cabinet comprising such a busbar. Background technique [0002] Multiphase busbars are used in switchboards to conduct and distribute alternating current to different electrical installations, usually installed in switchboard cabinets. In order to provide the possibility to conduct all three or even more phases of alternating current in a single busbar, multiphase busbars have been developed which comprise a base layer and a cover layer of electrically insulating material, between which Two or more layers of electrically conductive metal sheets, in particular copper, are arranged between them and are electrically insulated from one another by means of one or more insulating interlayers. [0003] The aforementioned busbar is described in DE 10 2005 015 945 B4 of the applicant, in which the differ...

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Problems solved by technology

[0008] Another problem that arises with the aforementioned laminated busbars is that the manufacturing process is rather complex, since the lamination of the different layers requires high clamping forces in order to ensure that the cutout area around the conductive pins is properly sealed , and no liquid resin can escape in the area around the pin

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