| 摘要 |
PROBLEM TO BE SOLVED: To provide a gas-insulated busbar that keeps metal foreign matter, which significantly reduces the insulation performance of the gas-insulated busbar and poses a constraint on miniaturization, as apart from insulating spacers as possible.SOLUTION: A gas-insulated busbar 10 is so formed that high voltage conductors 1 for carrying current are supported in an insulated manner by insulating spacers 3 in a closed metal container 2, and that an insulating gas 4 is sealed in the closed metal container 2. The insulating spacers 3 have an L-shaped section and a sectorial front, and the insulating spacers 3 are provided with at least one through hole 6 in a part. The through hole 6 has a curvature on inner portions and has no edges or flat portions. |
