DISCONNECTING SWITCH AND SUPPORT INSULATOR FOR IT Russian patent published in 2011 - IPC H01B3/46 

FIELD: electricity.

SUBSTANCE: disconnecting switch for interruption of current circuit under voltage which is at least 100 kV relative to the ground includes two groups (14, 15) of elongated bar-shaped support insulators (16) provided with possibility of being installed on the ground and supporting each of ends (19, 20) of wire at high altitude above the ground. Blade (21) of disconnecting switch is connected to one or both of the above wire ends and has the possibility of being moved for connection and disconnection of those ends. Support insulator is made from insulating water-proof composite material on the basis of rubber, containing rubber introduced to fire-resistant filler which is resistant to corona discharge. Disconnecting switch and support insulator can be used in converter station of transfer system of high voltage on direct current.

EFFECT: decreasing the height of support insulators and due to this the height of disconnecting switch.

19 cl, 2 dwg