ECN Forum Forums General Topics of the Trade Non-US Electrical Systems & Trades DC overhead transmission

Hello
Question. Are there and overhead sections of DC transmission line in the UK? which would of course only have two conductors instead of the usual 3 phases? I know that there are DC interconnectors between UK-France and Scotland-N Ireland but do these have any overhead sections but are they completly underground? If there are overhead sections it would be intresting to see a pic.
Luke