DISTRIBUTING BOARD HAVING COOLING DEVICE WITH COPPER-CLAD BUSBAR

摘要

PURPOSE: A distribution board including a cooling device at a copper coating hollow hole type busbar is provided to improve the safety of the distribution board by providing efficient ventilation according to the temperature variation of the busbar through installing a cooling ventilation unit outside a body. CONSTITUTION: A box(100) is made of synthetic resin and installed on a wall side of a building. A circuit breaker(200) includes a main circuit breaker and a secondary circuit breaker. A busbar(300) interconnects and electrically connects the main circuit breaker and the secondary circuit breaker. A connecting part(400) interconnects the busbars or the busbar with the circuit breaker. The connecting part includes a main body part, a circuit breaker terminal formed at one end of the main body part, and a busbar connecting terminal formed at the other end of the main body part. A cooling ventilation unit(500) cools the busbar.