It seems kind of primitive to have power lines just hanging on poles, right?
Bit unsightly too
Is it just a cost issue and is it actually significant when considering the cost of power loss on society (work, hospital, food, etc)?
It seems kind of primitive to have power lines just hanging on poles, right?
Bit unsightly too
Is it just a cost issue and is it actually significant when considering the cost of power loss on society (work, hospital, food, etc)?
I would bet that the initial cost is much higher while the lifetime of the installation isn’t nearly as far apart. Tree trimming isn’t needed, poles don’t need replaced as they age, less damage from storms, and I would assume the lines themselves don’t age as fast when protected from the elements.
Plus ongoing maintenance increases in cost each year. It really seems like the short term savings are overblown.
The break even point for us is estimated at about 30 years, so you have a point, but if you can point out any business that looks at returns over that time frame, they don’t operate in utilities.
And on your other point, not being exposed to wind and rain doesn’t mean underground cables aren’t susceptible to damage, rats love chewing cables, builders love ignoring prints etc and the time and costs involved in putting things back in the ground are, like I said, dramatically higher.
Squirrels chew on lines above ground too!
I never said that burying them was a perfect solution.
When a storm comes through and there are widespread disruptions, it is common to send cars along routes to assess the condition of each pole and its equipment. Damaged equipment or lines is easily visible. In a fairly short amount of time the damage can all be assessed and waiting line crews can get to work quickly fixing equipment.
With underground infrastructure, it takes longer to pinpoint exactly what’s and fix it.