> If the lines were buried, there'd be less maintenance caused by weather events, less transmission losses, and overall more efficient and resilient operation.
You may find this video by Practical Engineering to be interesting: “Repairing Underground Power Cables Is Nearly Impossible”
That "impossible" line was paired with a new line that doesn't require pumped insulating oil due to better insulating materials. Then the old line was de-energized and repaired, and is kept as a spare.
You may find this video by Practical Engineering to be interesting: “Repairing Underground Power Cables Is Nearly Impossible”
https://www.youtube.com/watch?v=z-wQnWUhX5Y