Above/below ground high voltage electric line sections having outer/inner tube isolating gas filled and outer/inner interconnections sections with intermediate support structure

摘要

The high voltage line has line sections made of a tubular conductor (3) and outer tubular envelope (4) filled with dielectric gas. There is an outer tubular structure (6) with coupling ends (8) connecting to the next section and an inner coupling section set (7A,7B) using coupling tubes (9,10) and an intermediate support structure (11).