[generatorguy]

Wind, ice, squirrels, birds, snakes and trees are going to cause power lines to fail and create sparks so while perfectly maintained power lines will fail less often failures will still occur. If the world is a tinderbox from now on there is a choice to be made between energized overhead power lines and no risk of fire.

[_ph_]

That there are other risks for forest fires does not remove the burden of properly maintaining the power towers at all.

[generatorguy]

Those are other factors that cause sparks from power lines that are independent of maintenance. sparks are going to occur whether the towers are replaced with brand new ones every 10 years or if they leave them until there starts to be problems and then they go look to see what needs replacing.