HIGH-VOLTAGE JUNCTION Russian patent published in 2012 - IPC H01B17/26 

FIELD: electricity.

SUBSTANCE: high-voltage junction into a contaminated zone through the metal wall of a protective structure, in particular - an explosion-proof chamber, contains a metal body tightly installed inside the wall with two insulation elements tightly placed therein, an electric conductor passing through the elements. On the outer butt-ends the both insulation elements are consolidated to the body with the help of movable nuts. Grooves are made on the body seat surface for installation of sealing rings into them. A ceramic insulator is installed in the body between the insulation elements using spelter glass, the glass-soldered electric conductor passing through the insulator. The body, glass and ceramic materials are matched in terms of the thermal linear expansion coefficient.

EFFECT: invention enhances the device reliability.

6 cl, 1 dwg