| 摘要 |
PURPOSE: A GIS post insulator with an integrated barrier is provided to achieve an improved breakdown strength, higher E field strengths, and more compact dimensions. CONSTITUTION: A post insulator(4) includes a base body(40) for supporting a high voltage component(2) on a holder(3) and is designed to bridge a high voltage potential difference between the component and the holder and has a surface which extends essentially along a bridging direction(7) of the base body. The surface(41,51) of the post insulator has at least one cup-shaped indentation(4b), which is concave and open toward the component or the holder, in an area(4a) between the component and the holder.
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