| 主权项 |
1. A gas circuit breaker that includes a pressure vessel including a main pipe disposed with an axis parallel to an installation surface and first and second branch pipes branching off from the main pipe obliquely upward and tilted away from each other; a plurality of reinforcing members that reinforce the first branch pipe; a plurality of reinforcing members that reinforce the second branch pipe; a breaking unit disposed in an insulating gas sealed in the pressure vessel; and first and second bushings connected to the first and second branch pipes, respectively; the gas circuit breaker comprising:
a plate-shaped first reinforcing member fixed to a side surface of the first branch pipe on the second branch pipe side, disposed parallel to a direction of the axis and perpendicularly to the installation surface, and fixed to a side surface of the main pipe; a plate-shaped second reinforcing member fixed to a side surface of the second branch pipe on the first branch pipe side, disposed parallel to the direction of the axis and perpendicularly to the installation surface, and fixed to the side surface of the main pipe; and a stress-relieving member that relieves concentration of stress on the side surface of the main pipe due to the first and second reinforcing members, the stress-relieving member being fixed to the side surface of the main pipe and integrally connecting the first reinforcing member and the second reinforcing member in the direction of the axis or being interposed between and fixed to the first and second reinforcing members and the side surface of the main pipe. |
