SURGE PROTECTOR WITH FRAMED STRUCTURE AND METHOD OF MAKING SAID SURGE PROTECTOR Russian patent published in 2010 - IPC H01C7/12 

FIELD: electricity.

SUBSTANCE: surge protector has at least one varistor unit (1), two end fittings (3), at least one reinforcing element (9) holding the varistor unit (1) and the end fittings (3) together and passing through a first through-opening (11) in at least one end fitting (3). Second openings in at least one end fitting (3) enter a groove (17) at the side of the end fitting (3) not facing the varistor units (1). In accordance with the method of making the surge protector, coatings are deposited through extrusion or a module is encapsulated, where the module contains two end fittings (3), several varistor units (1) and at least one reinforcing element (9) to form an outer casing (5). First through-openings (11) for the reinforcing element (9) are sealed with silicon. Silicon flows through second through-openings (15) in the end fittings (3) when casting or sputtering and enters the first through-openings (11) from the outside so as to insulate them from water and moisture.

EFFECT: design of a surge protector which has no problems related to partial discharges arising due projecting edges of bolts or nuts, as well as problems related to moisture entering through openings in the end fittings.

11 cl, 3 dwg