OMARK600 Aircraft Warning Sphere

Short Description
  • Diameter: 600mm
  • Material: Fiberglass Reinforced Polymer
  • Suitable for 35KV-1000V voltage transmission line
  • Suitable for diameter 6.5-55mm conductor
  • Optional preformed armor rods and reflective strips


  • ICAO Annex 14 Volume I 2018, Chapter 6
  • FAA 70/7460-1L
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Aviation obstruction marking sphere is designed to provide daytime visual warning or nighttime visual warning if comes with reflective tape, for electricity transmission line and overhead wire for aircraft pilots, especially cross river high voltage transmission lines. RedDot OMARK power line marker ball is made of high-grade Fiberglass Reinforced Plastics(FRP), diameter of 600mm and 800mm are available to meet different customers’ needs.

A marking sphere should be of one color such as aviation orange, white and red. Generally, the marking spheres are placed on the highest line. Where there is more than one line at the highest level, white and red, or white and orange spheres should be displayed alternately. This alternating color scheme provides the best conspicuity against all background.


• Fiberglass Reinforced Polymer durable material with better weather resistant
• Super corrosion resistant character, stainless steel bolts and nuts
• Aluminum alloy cable clamp guarantees good corrosion resistance
• Various size of cable clamps are available to fit for customers’ cable conductor
• Drain holes structure can prevent accumulated rain water inside the spheres
• Stacking compatible design, save storage space and freight charge
• Optional Preformed Armor Rods provide better protection against vibration and abrasion
• Optional Reflective tape is more durable and economical solution for night visibility
• Both sphere diameters of 600mm and 800mm are available


OMARK600/800 specifications
ItemOMARK600-800 Specifications
Visible distance1200 meters
Voltage range35KV-1000KV
Conductor diameter6.5-55mm
ColorOrange, Red, White, Orange/White, Red/White
Sphere bodyFRP(Fiberglass Reinforced Polyester)
Cable clampAluminum alloy
Diameter600mm / 800mm
Weight6.9KG / 9KG
Drain holesYes
Optional• Preformed Armor Rods • Reflective Strip
Warranty2 years

Ordering Code

OMARK600-800 marking sphere Ordering Code
SeriesSphere DiameterColorCable diameter(mm)Armor rodsReflective strips
OMARK600 (600mm)O(Orange)Variable[BLANK] (without armor rods)[BLANK] (without reflective strips)
800 (800mm)R(Red)AR (with armor rods)RS (with reflective strips)
E.g.: OMARK600O13.1AR means a 600mm diameter warning sphere, orange color, with preformed armor rods, suitable for diameter 13.1mm cable conductor.

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