Power Transmission Lines Question

Splice?

Here's a WAG based on their location. I'll guess that these are a form of line maintenance telemetry devices based on an inclinometer (measurement from level) to measure the amount of sag in these cables as temperatures change.

Fault passage indication.

how do they get the green squares to float like that?

Thanks for that video. It is always fun to watch things go 'bang'. I am GA ing you on it.

Great answer! And good links.

Power lines are something we see every day around us and mostly take for granted. Very few of us know anything about them.

Too bad they didn't have these on the Tacoma Narrows Bridge.

They had the portable oscillation dampers on that installation. The kind with 4 wheels and rubber tires.

If only they had been a little faster in driving the larger 'oscillation dampers'/'spoilers' onto the deck ...if only...

Thanks, SE! Learned something new!

Is Solar Eagle a real person or A.I.?

Ahhh, Carnack the Great. I miss Johnny, Hell I even miss Jack.

When I stated A.I. I didn't mean Artificial, I meant Alien. I've never heard of anyone, that has his/her/whatever range of accurate timely information on a vast array of subjects. Wonder how he does picking stocks?

Or the ponies?

thanks SE. GA. I was going to guess some kind of emergency strain relief. Knowledge versus conjecture, once again!

Solar Eagle, good answer, Nice to see someone knows about OH lines.

These are called vibration dampers. There main purpose is to damp the vibration motion s generated by the conductor so as not to damage the fix end, near insulator of the cnductor. The conduc4or vibreates due to the passing wind, a phenomena refered to as aeronian vibration.

Stockbridge damper or Conductor gallop

http://en.wikipedia.org/wiki/Stockbridge_damperhttp://en.wikipedia.org/wiki/Conductor_gallop

Thanks to all for their nice inputs which helped me out to understand the function of stockbridge dampers.

Here is a GA for good manners