VACUUM SWITCH Russian patent published in 1995 - IPC

FIELD: low-voltage and high-voltage circuit-opening devices. SUBSTANCE: switch has insulating case 13, at least one vacuum arc-control chamber 1, hold-down mechanisms joined through movable current leads 2, insulating levers 17 with armature 7. Each levers 17 is hinged to pin 20 installed in case 13 and secured by means of bolts 10 and 11. L-shaped bus 12 is fitted between current lead 3 and bolt 10 and base of case 13 in placed between bolts 10 and 11. EFFECT: improved design. 1 dwg