VACUUM SWITCH Russian patent published in 2002 - IPC

FIELD: electrical engineering. SUBSTANCE: switch has vacuum arc-control chamber secured within insulating case by means of fastening member made in the form of split hollow cylinder and provided with at least one annular projection disposed in annular drilling made on inner surface of insulating case; it is divided into at least two parts in the form of hollow cylinder sectors facing each other and interconnected by means of at least one taut strut member. EFFECT: enhanced reliability of fastening arc-control chamber in insulating case. 2 cl, 2 dwg