High voltage interrupter unit with improved mechanical endurance

摘要

A high voltage interrupter unit comprises a switching chamber within which at least two electric contact elements (21; 22, 25) of a contact system (20) are arranged to be moved relative to one another. The contact system (20) further comprises at least one mechanical element (23) which is at least in part not in fixed mechanical connection with either of the two contact elements. In order to increase the mechanical endurance of the contact system (20), the at least one mechanical element (23) is sheathed at least in part in a layer (24) of a synthetic, abrasion resistant material.