GAS INSULATED ELECTRIC DEVICE AND GAS INSULATED ELECTRIC DEVICE MANUFACTURING METHOD

摘要

The present invention is provided with: a container filled with an insulating gas; a high voltage conductor (3), which is disposed inside of the container, and to which a predetermined voltage is applied; and an insulating supporting member that insulates and supports the high voltage conductor (3) with respect to the container. The high voltage conductor (3) is covered with a first dielectric film (6), the first dielectric film (6) includes a first main surface (6A) exposed to the inside of the container, and a second main surface (6B), which is positioned on the reverse side of the first main surface (6A), and which is in contact with the high voltage conductor (3), and a through hole (6H) is formed in the first dielectric film (6), said through hole reaching the second main surface (6B) from the first main surface (6A). On the inner circumferential surface of the through hole (6H), a first coating film (7) is formed such that at least the hole diameter of the through hole (6H) is smaller than the diameter of electron avalanche in a state wherein a gas insulated electric device is being used.