Alrouf Aircraft Warning Light Ball

• Overhead transmission lines
• Ultrahigh-tension transmission lines
• River-crossing transmission cables
• Ultrahigh cables
• Usage Notice
• Installers should take proper personal safety measures to avoid accidents
• Avoid beating or pressing heavily for long periods to prevent damage or deformation affecting installation
• Check clamp screws for proper tightening to prevent falling off

Compliance & Certifications

Alrouf LED aerial marker balls are designed to meet international aviation safety requirements:

• FAA Compliant Meets FAA Advisory Circular 70/7460-1 power line marker requirements
• ICAO Standard Compliant with ICAO Annex 14 aviation safety standards for obstacle marking
• High Visibility Aviation orange, red, and white color options for maximum contrast

Installation Overview — Easy & Secure Installation

The GS-AWS aerial marker ball is engineered for fast deployment using a durable aluminum clamp system. It securely fits transmission wires ranging from 35 mm to 150 mm.

Installation Best Practices:

• Follow proper safety procedures during installation

• Avoid excessive pressure or mechanical impact

• Regularly inspect and tighten clamp fittings for long-term stability

FAQ

What are aircraft warning balls and why are they used on power lines?

Aircraft warning balls (also called aerial marker balls or obstruction spheres) are brightly colored spheres mounted directly onto overhead transmission lines, guy wires, and river-crossing cables. They give pilots, especially those flying at low altitude, a clear daytime visual reference so they can spot and avoid the lines from a safe distance.

What is the difference between an aircraft warning ball and an aircraft warning light ?

A marker ball is a passive daytime visual aid that relies on size, color, and reflective coating to be seen. An aircraft warning light
is a powered light, often LED, used mainly for nighttime or low-visibility conditions. Many transmission line and tall-structure projects install both together depending on line height, location, and local aviation authority requirements.

How big are aerial marker balls, and what size does a transmission line need?

Marker ball diameters commonly range from around 300mm up to 800mm depending on the line's voltage class and required visibility distance. The GS-AWS model is 600mm, a standard size used for high-voltage overhead transmission line applications.

How far apart should marker balls be spaced along a line?

Spacing depends on the governing civil aviation authority's advisory circular for the project's country, with typically tighter spacing required near runways or approach paths and wider spacing permitted along general transmission corridors. Always confirm exact spacing against the current FAA, ICAO, or local authority guidance for the specific project.

What materials are aircraft warning balls made from, and how long do they last?

Durable marker balls are typically made from high-strength glass fiber or FRP with a UV- and corrosion-resistant reflective coating. The GS-AWS model is rated for a non-discoloring service life of over 5 years and wind resistance up to 80 m/s, making it suited to extreme heat, high UV exposure, and occasional high winds common across the Gulf region.

Are aircraft warning balls and aviation obstruction spheres the same thing?

Yes. "Aircraft warning ball," "aerial marker ball," and "aviation obstruction sphere" are different names commonly used for the same type of product: a visual marker sphere installed on overhead lines for aviation safety.

Request a Quote