POLE PART OF AUTOMATIC CIRCUIT BREAKER AND METHOD OF ITS MANUFACTURING Russian patent published in 2016 - IPC H01H33/662 H01H1/58 

FIELD: electricity.

SUBSTANCE: pole part of automatic circuit breaker (1) comprised of external insulating sleeve (7) made of continuous synthetic material and insert (8), which is intended for vacuum circuit breaker used for mid-voltage circuit switching and placed inside the sleeve and supported by it the method for its manufacturing envisages application of layer (12) of adhesive material to at least lateral area (11) of the circuit breaker insert (8). The circuit breaker insert (8) with coating is built in by pouring continuous synthetic material in order to form a single layer surrounding the external insulating sleeve. Thickness of intermediate layer (12) applied between insert (8) and surrounding insulating sleeve (7) varies from 0.5 up to 5 mm. At that intermediate layer (12) performs function of mechanical compensation and adhesive function simultaneously.

EFFECT: providing strong cohesion between the insert of vacuum circuit breaker and insulating material surrounding it without usage of additional gluing agent.

16 cl, 2 dwg