If a tree leans over and rests into 15kv tree wire is it necessary to de-energize the 12.47kv primary? This just happened next to my house. I still have power.
Announcement
Collapse
No announcement yet.
De-energizing primary?
Collapse
X
-
I’ve seen this happen 20+ years back on a 11kV OH line. The tree caught fire but the supply breaker didn’t trip. I had to phone the DNO (PoCo) to get the supply shut down.
I did get some benefit from it, two cows were killed and I got some good pieces of beef from the farmer.
[COLOR=#000000]The reports of my death are greatly exaggerated.[/COLOR]
Comment
-
Originally posted by steve66 View PostI find it had to believe those lines would still be powered. Seems like a tree would be enough to take out a re-closer.
Ahem:
15kv tree wire
https://www.marmonutility.com/Portal...re_Systems.pdf
Comment
-
Originally posted by Tony S View PostI’ve seen this happen 20+ years back on a 11kV OH line. The tree caught fire but the supply breaker didn’t trip. I had to phone the DNO (PoCo) to get the supply shut down.
I did get some benefit from it, two cows were killed and I got some good pieces of beef from the farmer.
Comment
-
Originally posted by mbrooke View Post
If only cows could fly as chickens do.
Comment
-
Originally posted by mbrooke View PostIf a tree leans over and rests into 15kv tree wire is it necessary to de-energize the 12.47kv primary? This just happened next to my house. I still have power.
And, just in case the responsibility is not clear, any action in response to the leaning tree should be coordinated by POCO.
Comment
-
Originally posted by mbrooke View Post
Comment
-
Originally posted by GoldDigger View Post
The insulation on the tree wire is apparently in good enough shape to withstand the applied voltage. But I would not under any circumstances try to clear the tree without first de-energizing the line. A mechanical break in the insulation or a broken wire as a result of a poorly planned attempt to prune or fell the tree could cause dangerous step and touch potentials over a wide region around the work site.
And, just in case the responsibility is not clear, any action in response to the leaning tree should be coordinated by POCO.
Comment
-
-
We have tree wire on our 25kV circuits where the ROW is only 10 ft.
I have seen this stuff arching while it’s laying on the ground making glass.
ive also seen it energized for days with a pine laying over it and the wire pulled to within 10’ of the road.
it gets pretty at nights when the wet leaves on close trees are laying all over it, tiny little lights all over the wire...
Comment
Comment