David Deuchar wrote:
wrote in message
oups.com...

I have looked everywhere,

What are the large red speres you see on high tension wires?

One set specifically where I-95 crosses the Connecticut river.




http://www.manairco.com/wm.JPG



'Round here, these folks sell most of the ones I see. Our state
Aeronautics Dept. gave them away to those in need for years. Don't know
if they still do.

http://www.tanawiremarker.com/default.htm

Dale Scroggins