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,
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Engineering Infinity - What Are Those Colorful Aerial Marker Balls On Power Lines? To get information visit the link below๐๐๐ https://youtu.be/ZsxzFw_VUw4 | Facebook
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Aviation marker ball hi-res stock photography and images - Alamy
What Are Balls That Hang on Power Lines in Illinois