| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a closed insulating device which controls the behavior of a foreign matter on the interior surface of a metal container to achieve the compactification and improved insulation reliability of the metal container. <P>SOLUTION: The closed insulating device includes a high-voltage conductor 1 which extends radially and can be divided radially into at least two portions, the metal container 3 which can be divided at least into two portions by an end flange 3a and covers the high-voltage conductor 1 across a gap that is formed between the metal container 3 and the high-voltage conductor 1 and that is filled with an insulating gas, and a spacer 4 having an insulating member 4a which is caught and fixed by the flange 3a at the outer peripheral side while supporting the high-voltage conductor 1 at the inner peripheral side. The interior surface of the metal container 3 is provided with a nonlinear resistance film 13 that is so formed as to show a high electric resistance when the intensity of an electric field acting on the interior surface of the metal container 3 is a given value or less and show a low electric resistance when the intensity is higher than the given value. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
