| 摘要 |
The present invention relates to a structure designed for supporting the main portion of an electrical apparatus for electrical control or protection in a medium-voltage electrical cell, the said structure being placed on a bearing surface. This structure is characterized in that it comprises two sides (6, 7) that are substantially parallel with one another, each side comprising a portion called the main portion (14, 15) from which extends a portion forming a wing (16, 17), these two wings being designed to be connected to one another at their free end and at their end connected to the main portion of the sides by respectively two crossmembers (8, 9) called upper crossmembers, the two wings comprising, at their junction with the main portion of the sides, an opening (29, 30) designed to receive slidingly respectively the two ends of one, called the first (9), of the crossmembers (8, 9) called the upper crossmembers, the said structure comprising means called abutment and locking means, called first abutment and locking means, in order to prevent the relative movement of the said crossmember relative to the structure in five degrees of freedom out of six, the displacement of the crossmember in the sixth degree of freedom corresponding to a translation in a direction opposite to the direction of insertion of the crossmembers being stopped by fastening means, the installation alone of the said crossmember (9) in the said openings without the use of the fastening means being sufficient to make the assembly stable. |
