Stabilised switch panel for metal-clad medium voltage switchgear - incorporates discharge channel between rear wall and reinforced plate on which insulating bus=bar supports are mounted

摘要

The vertically extensive edges (21) of the rear wall (8) are provided with inwardly directed bevels (22) connected to a backplate (9) limiting the busbar space and rigid supports (13, 14) for the insulators (12) on which the busbars (1) are mounted. The stability of the entire panel is increased even under heavy loading from internal arcs, and the risk of deformation by hot gas flow through the discharge channel (24) between the wall (8) and plate (9) is eliminated.