ELECTRICAL METAL-CLAD SWITCHBOARD

An encapsulated electrical switch panel (1) for medium voltage consists of in each case one busbar space (4), power circuit breaker space (2) and cable connecting space (3) as well as a low-voltage box (5) placed on the power circuit breaker space (2). These spaces are compartmentalised with respect to one another. The cable connecting space (3) extends under the power circuit breaker space (2) through as far as the operating side (6) of the switch panel. Underneath the vertical interrupters (17) of the removable vacuum switch (15), which interrupters are surrounded at a distance by insulating tubes (18) which are open from above and below, there runs an air distribution channel (40) which is compartmentalised with respect to the cable connecting space (3) and is provided at the top with outlet openings (41, 42, 43) which are aligned with the interrupters. Air supply channels (50) which pass through the rear wall (7) of the switch panel (1) open from the rear into the air distribution channel (40).