Cooled electrical cabinet, especially for telephone systems

摘要

An air conditioned telephone equipment cabinet (1) has internal walls (2-6) around an equipment (8) zone (7) comprising triple sub walls with thermally insulating outer (9), middle (10) and inner conducting (11) sub walls defining temperature controlled (22) air circulation (20) spaces (12, 13) connected through apertures to the equipment zone and exterior (14-16).