| 摘要 |
Circuit breaker arrangement for medium voltage to high voltage applications, comprising at least one pole part housing (1) for accommodating a vacuum insert (2), within which a pair of corresponding electrical contacts (3, 4) is coaxially arranged, wherein a fixed electrical contact (3) is electrically connected to an upper terminal (5) of the pole part housing (1 ) and an axial movable electrical contact (4) is electrically connected to a lower terminal (6) of the pole part housing (1) and is operated by an insulating pushrod (7),
wherein the insulating pushrod (7) extends through a shielding plate (8) arranged on a lower opening of the pole part housing (1), the shielding plate (8) consists of a rigid moulded plastic insulating material, wherein at least one sealing ring (9; 9a, 9b) consisting of an elastic material is moulded on the periphery of the shielding plate (8). |
