| 摘要 |
A gas-insulated switchgear of which frictional force and abrasion amount at a sliding portion are small, and capable of maintaining a state having the small frictional force and abrasion amount for a long time is provided. Insulating gas is sealed in a container of a bus integral disconnecting switch 27 of a gas-insulated switchgear 10, and a movable side contact portion 31, a fixed side contact portion 32, and a movable contact 33 are provided to constitute a disconnecting portion 30. Besides, a hard carbon film 50 is formed at an outer peripheral surface of the movable contact 33 except portions which are in contact with contact terminals 32a of the fixed side contact portion 32 under a state in which the movable contact 33 is inserted into the fixed side contact portion 32 and electrically connected therewith and portions which are in contact with contact terminals 31a of the movable side contact portion 31 under an electrically disconnected state. |
