Patent ID: 8677609
Filing Date: 2014-03-25
Classification: H01H,Y10T

Abstract:
1. A method for producing a circuit-breaker pole part, comprising: molding an external insulating sleeve with insulation material; mounting a vacuum interrupter insert inside the insulating sleeve; electrically connecting the vacuum interrupter insert with an upper electrical terminal and a lower electrical terminal arranged in a wall section of the insulating sleeve; molding the insulating sleeve, wherein at least only the upper electrical terminal is embedded in the insulation material during molding; coating the vacuum interrupter insert with an extra layer made of at least one of insulation material at least towards a bottom line open air gap directly between the extra layer and the insulator sleeve, and between the vacuum interrupter insert and the insulator sleeve for better electrical performance; and mounting the coated vacuum interrupter insert by screwing on a threaded bolt onto the upper electrical terminal before molding or after molding.