NYY-J Underground Cable 5 x 2.5 mm² Black 5 x 2.5 mm² Sold by the Metre Power Cable Power Cord – Order of the length Supplied. : Amazon.de: DIY & Tools
NKT upgrades underground cables in France - reNews - Renewable Energy News
Do private telecommunications companies own the undersea cables that connect the internet across continents? How do they make money on the undersea cables? Who pays for them? - Quora