ARRESTER Russian patent published in 2002 - IPC

FIELD: gaseous discharge and vacuum engineering. SUBSTANCE: arrester that may be used to protect electronic equipment against voltage surges and electric circuit switching including protection of telephone exchange lines against dangerous voltage surges has at least two electrodes; effective surface of at least one electrode is coated with active layer composed of at least two components (alloys, mixtures, composites) having different melting points; active layer thickness amounts to 0.5-20 diameters of arc cathode spot. EFFECT: enhanced operating voltage stability. 1 dwg, 1 tbl