Framework for a switchboard cabinet

Framework for a switchboard cabinet comprising at least twelve interconnecting frame sections (10) having the same cross-sectional configuration, each said frame section (10) comprising a first external side (11) and a second external side (12) substantially perpendicular to one another and joined at one end by an exterior corner (27), an opposite terminal end of said first external side (11) substantially planar with said first external side (11), and an opposite terminal end of said second external side (12) forming an end section (17) extending substantially perpendicular inwardly from said second external side (12);

• a first internal side (13) and a second internal side (14) shorter than said first and second external sides (11, 12), respectively, and extending at substantially right angles to one another and joined at one end by an internal corner, opposite ends of said first and second internal sides (13, 14) abutting said second and first external sides (12, 11), respectively, said internal sides (13, 14) forming in combination with said external sides (11, 12) a hollow, generally rectangular receiving space (28);
• four said frame sections (10) joined at their ends to form a rectangular first frame having a central opening, four said frame sections (10) joined at their ends to form a rectangular second frame having a central opening, said second frame substantially coextensive with said first frame, said first and second frames maintained in parallel spaced relation forming a first pair of substantially parallel opposite sides of said framework structure, said parallel spaced relation maintained by four spaced said frame sections (10) joining said first frame to said second frame, said four spaced frame sections forming in combination with frame sections of said first and second frames a second pair of substantially parallel opposite sides having central openings, a top and a substantially parallel opposite bottom, each having a central opening;
• said frame sections (10) comprising said framework structure aligned to provide said exterior corners (27) of each said frame section (10) directed to the interior of said framework structure, said opposite terminal ends of said first external sides (11) forming a sealing strut around said opening of said first pair of opposite sides, said sealing strut extending substantially perpendicular to the plane of said first pair of opposite sides, said opposite terminal ends of said second external sides (12) forming an abutment frame around the outer edges of an opening of said second pair of opposite sides of said framework structure, said abutment frame extending parallel to the plane of said second pair of opposite sides.