Insulation spacer for gas-insulated transmission line with improved outer rim structure

摘要

An insulation spacer for supporting a high voltage conductor within a flexible housing which is filled with electronegative gas has a central insulation hub and a concentric outer rim which are joined by a thin web. A plurality of tapered ribs extend from the outer rim to reinforce the outer rim against high loading forces and extend for approximately two-thirds of the radial thickness of the web and merge with the web. Ribs are placed at the latch and keeper areas of the halves of the insulator which are snapped together to form a single disk.