| 摘要 |
<p>PURPOSE:To eliminate the possibility that a bellows hits against an object when a partition is removed or a circuit breaker is inspected by locating the bellows closer to an operating unit than the partition thereby preventing the bellows from being exposed to the SF6 gas side. CONSTITUTION:A drive rod 45C passes through a hole 22A made in a partition 22 with a pin 61 penetrating the drive rod 45C at the right end thereof. A fixing base 50 is fixed to the operating unit 20 side of the hole 22A and a bellows 2 is interposed between the fixing base 50 and the drive rod 45C. A tubular protective cover 1 is disposed on the outer periphery of the bellows 2 and secured to the fixing base 50. Since the bellows 2 is disposed on the operating unit 20 side, the bellows 22 does not hit against an object when the partition 22 is removed. Furthermore, the protective cover 1 protects the bellows 2 against hitting at the time of inspecting the operating unit 20. This structure realizes a highly reliable robust gas insulated cubicle.</p> |
