| 摘要 |
<p>PURPOSE:To reduce the size of a whole device by arranging a pair of electrodes of a switch part of a disconnecting switch substantially vertically, and supporting the switch part by an insulation support provided directly under the switch part or isolated from the vicinity of the switch part. CONSTITUTION:A bus conductor 3 is held to be passed through a ground vessel 1 through an insulation spacer 2. The stationary side electrode 6 of a disconnecting switch is supported by the conductor 3, and a movable contact 9 is slidably supported by a movable side electrode 8 to be moved substantially vertically in contact with the electrode 6. An insulation support 11 is secured to the top of the inner face of the vessel 1 to support the conductor in a hanging shape. Since the support 11 is isolated even if conductive powder dust is generated by the opening/closing operation of the disconnecting switch, the dust does not adhere. Accordingly, even if the size of the support 11 is small, an insulation deterioration does not occur, and the size of a whole device can be accordingly reduced.</p> |
