![EPCOR on X: "Ever wonder what these "balls" on power lines are for? #NationalElectricityMonth https://t.co/ptIRz4hAnb" / X EPCOR on X: "Ever wonder what these "balls" on power lines are for? #NationalElectricityMonth https://t.co/ptIRz4hAnb" / X](https://pbs.twimg.com/media/DCxk5K_W0AIQtk2.jpg)
EPCOR on X: "Ever wonder what these "balls" on power lines are for? #NationalElectricityMonth https://t.co/ptIRz4hAnb" / X
![Why Aerial Marker Balls Used on Electrical Power Line | Colorful Balls on Transmission Line in Hindi - YouTube Why Aerial Marker Balls Used on Electrical Power Line | Colorful Balls on Transmission Line in Hindi - YouTube](https://i.ytimg.com/vi/5bNlnmtBv4E/maxresdefault.jpg)
Why Aerial Marker Balls Used on Electrical Power Line | Colorful Balls on Transmission Line in Hindi - YouTube
![KETRACO on X: "Ever wondered what are the balls that hang on power lines? They are called visibility marker balls. You'll often find them near mountain passes, in the deep valley areas, KETRACO on X: "Ever wondered what are the balls that hang on power lines? They are called visibility marker balls. You'll often find them near mountain passes, in the deep valley areas,](https://pbs.twimg.com/media/D0T9F7IXQAA42wQ.jpg)
KETRACO on X: "Ever wondered what are the balls that hang on power lines? They are called visibility marker balls. You'll often find them near mountain passes, in the deep valley areas,
![Orange coloured Plastic balls, so called flight warning balls, are installed at the power lines of RWE in Moers, Germany, 18 April 2011. RWE renewed 18 old power-pylons in North Rhine-Westphalia. Photo: Orange coloured Plastic balls, so called flight warning balls, are installed at the power lines of RWE in Moers, Germany, 18 April 2011. RWE renewed 18 old power-pylons in North Rhine-Westphalia. Photo:](https://c8.alamy.com/comp/DAJMHM/orange-coloured-plastic-balls-so-called-flight-warning-balls-are-installed-DAJMHM.jpg)