Have you ever looked up at the sky and seen brightly colored balls hanging from powerlines? You might have pondered what they do or why they’re there. These intriguing signs, known as aerial marker balls, perform an important role in guaranteeing the safety of both airplanes and people on the ground. Let’s take a closer look at why these multicolored balls are so frequent along electrical lines.
Using Visibility Markers for Sky Navigation
The colorful orbs that adorn electricity lines are more than just ornaments; they are strong indicators that help keep our skies safe. These markings, also known as visibility markers or aerial marker balls, have a special purpose: they notify low-flying aircraft to the presence of electricity wires. Think of them as small signals that direct pilots away from potential risks.
Staying Out of Danger
Consider a scenario in which an airplane is flying at low altitude, potentially near canyons, lakes, rivers, or airports. In such cases, the aircraft may collide with power lines that are not immediately apparent. To prevent this, the Federal Aviation Administration (FAA) requires the placement of these aerial marker balls on power lines that traverse regions with low-flying aircraft activity. By installing these indicators, we make the area safer for both aviators and individuals on the ground.
Colors that catch the eye
Have you ever wondered why marker balls come in a variety of colors? The solution rests on increasing visibility. The colors used—often orange, white, and yellow—are carefully chosen to contrast with varied settings. When flying across the sky, pilots want markers that are impossible to overlook. These bold colors ensure that the markings stand out and warn them to the existence of electrical wires.
Remarkable Material: Plastic.
You might be wondering what these marker balls are made of. Surprisingly, they are made of plastic. This choice of material is both practical and strategic. Plastic does not conduct heat or electricity, making it a great electrical insulator. This attribute ensures that the marking balls do not interfere with the power lines’ functionality while also improving safety.