What’s with the orange balls on power lines?

jfrabell asked:


I’ve been flight instructing for years. I’ve been in love with aviation my whole life. I read all the time. Yet I have never found a reference to the orange balls they hang on power lines near airports. My family tells me this is to “improve the visibility of the lines for pilots.” If that’s the case, why is it not in any publication I have ever come across?
Carman24…learn to spell before you call someone a moron.
I still haven’t seen a REFERENCE to what I’m talking about. The AC 70/7460-1J is the best so far. From what I can tell nothing has to be marked below 200 AGL and that’s where the balls I’m talking about are always located.

For those of you who “question” my status as a CFI. Look it up. Jeffrey J. Frabell 2842771CFI exp 04/07.

To the “common sense” answers…You clearly don’t know what you’re talking about. The federal government (FAA, military, etc) doesn’t do common sense. If it isn’t written it doesn’t exist.

Thanks to those of you who have tried without being insulting.
Babyitsyou31. Thank you. I found what I was looking for in the AC.

Now how do I close this question so I don’t get more rediculous answers?

MARENCO