HIGH-VOLTAGE SWITCHING DEVICE AND SWITCHGEAR COMPRISING A HIGH-VOLTAGE SWITCHING DEVICE, AND METHOD FOR PRODUCING A HIGH-VOLTAGE SWITCHING DEVICE

摘要

The invention relates to a high-voltage switching device comprising a vacuum chamber and a switchgear comprising a high-voltage switching device. The invention also relates to a method for producing a high-voltage switching device comprising a vacuum chamber. The high-voltage switching device comprises a cast housing (1) made of casting resin that surrounds the housing body (3) of the vacuum chamber (2), which comprises a stationary contact (4A) and a movable contact (5A), an intermediate layer (3A) being arranged between the inner wall of the cast housing (1) and the outer wall of the housing body (3) of the vacuum chamber (2). The high-voltage switching device is characterised in that said intermediate layer is a casting resin layer (3A), the glass transition temperature of the casting resin layer being between 10 and 40°C. Tests on such a structure have shown no tears in the coating or covering of the housing body of the vacuum chamber and no outer arcing on the housing body.