DISCONNECTING SWITCH Russian patent published in 2000 - IPC

FIELD: electrical engineering; circuit- opening devices. SUBSTANCE: disconnecting switch has frame-mounted ribbed insulating members coated with sealing compound and protective layer, as well as knife-blades with hooks and/or rings, and contacts for connecting power supply and outgoing buses arranged within frame plane. Novelty is that insulating members are one-piece structures in the form of cylinders with taper ribs, gaps, and double-ended flat parallel bevels in the form of segments according to phase number, with holes made in them to connect conducting members of contact blades. Each insulating member is rigidly fixed on two sides of frame by means of flat oval terminators with bevel slots. Contacts holding the blades are provided with turning pins. EFFECT: simplified design, facilitated manufacture and wiring, improved reliability and economic efficiency. 7 dwg