re electric power line balls in article apr eagle lerc nasa gov fsset bach lerc nasa gov scott townsend writes i got a question from my dad which i really can t answer and i d appreciate some net wisdom his question is about some diameter balls which are attached to electric power lines in his area he s seen up to a half dozen between two poles neither of us have any experience with electric power distribution my only guess was that they may be a capacitive device to equalize the inductance of the grid but why so many between two poles anyone know what they really are is there a related faq for this is there a better group to submit to we d both appreciate some enlightenment the balls are used to reduce the amplitude of oscillations of the wire during periods of high winds i ve seen what looks like paint cans filled with concrete used for the same purpose mike behnke senior tech advisor quid est illuidin aqua fermi nat accel lab equipment suuport batavia il computing div pistrix pistrix behnke fnalf fnal gov my opinions are my own not of the lab so if you don t like them call uwh iner
