OMARK Obstruction marking sphere / warning globe - OMARK Obstruction marking sphere

Power transmission line, High voltage line, High tension line, Electricity distribution line - details see:
Type: OtherSize: 600mmObstruction marking sphere: red / white / orangePlace of Origin: Shanghai, China (Mainland)
Brand Name: REDDOTModel Number: OMARK Obstruction marking sphere  
OMARK Obstruction marking sphere / warning globe
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Aircraft warning marking sphere

Aviation obstruction marking sphere is designed to provide daytime visual warning of electricity transmission line for aircraft pilots, especially cross river high voltage transmission lines.

A marker should be of one colour. When installed, white and red, or white and orange markers should be displayed alternately. The colour selected should contrast with the background against which it will be seen.


l Not easy to break during transportation & installation

l Super corrosion resistant character, stainless steel bolts and nuts

l Aluminum alloy cable clamp guarantees good corrosion resistance

l Various size of cable clamps are available to fit into customers’ cable conductor

l Drain holes structure can prevent accumulated rain water inside the spheres

l Stacking compatible design, save storage space and freight charge

l Optional Preformed Armor Rods prevent the spheres slipping from the conductor

l Optional Reflective strip for night visibility.


Power transmission Line


l ICAO Annex 14, 4thEdition, July 2004

l FAA AC 70/7460-1K, obstruction Marking and Lighting.



Visible Distance1200 meters
Voltage Range35KV-1000KV
Conductor diameter6.5-55mm

Mechanical structure

ColorOrange, Red, White, Orange/White, Red/White
Sphere bodyFRP(Fiberglass Reinforced Polyester)
Cable clampAluminum alloy
Bolts/nuts/washersStainless steel 304
Drain holesYes
Optionall Preformed Armor Rods

l Reflective Strip

Warranty2 Years

Ordering code

SeriesDiameterColorCable diameter(mm)Armor RodsReflective Strip

For Example, OMARK600O13.1AR means a 600mm diameter warning sphere, orange color, with preformed armor rods, suitable for diameter 13.1mm cable conductor.

Note: For guarantee the spheres can fit for cable conductor well, customers need to provide cable diameter, cable material and code.

Packaging Detail:carton inside, wooden box outside
Delivery Detail:20 days

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