Support structure for an electrical control or protection apparatus for a medium-voltage electric cell

摘要

A structure for supporting of an apparatus for electrical control or protection of a medium-voltage electrical cell, which structure has two sides substantially parallel to one another, each side having a main portion from which extends a wing, the wings connected at their free ends with two upper crossmembers connected to the main portion of the sides by the wings at their junctions with the main portions, and each having an opening to receive slidingly two of the upper crossmembers, and first abutment and locking means, to prevent movement of the crossmember relative to the structure in five of six degrees of freedom, displacement of the crossmember in translation in a direction opposite to the direction of insertion of the crossmembers being the sixth degree of freedom, installation of the crossmember in the openings without fastening means being sufficient to make the assembly stable.

主权项

1. A structure for supporting a main portion of an electrical apparatus for electrical control or protection in a medium-voltage electrical cell, when said structure is supported on a bearing surface, said structure comprising:
two sides that are substantially parallel with one another, each side comprising a main portion from which extends a portion forming a wing, said wings being connected to one another at their free ends and at their ends connected to the main portion of the sides by, respectively, two upper crossmembers, the wings forming, at their junctions with the main portions of the sides, an opening for slidingly receiving, respectively, the two ends of a first said upper crossmember, the structure comprising first abutment and locking means that are carried partly by the first upper crossmember and partly by the sides, for preventing relative movement of said first upper crossmember relative to the structure in five of six degrees of freedom, the sixth degree of freedom corresponding to a direction opposite to the direction of insertion of the first upper crossmember, said first abutment and locking means being stopped by fastening means carried partly by the first upper crossmember and partly by the sides, so that installation of the said first upper crossmember alone in said opening prior to use of fastening means is sufficient to make the structure stable under the effect of gravity.