Aviation Warning Light Systems: What You Need to Know

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 The Federal Aviation Administration (FAA) and the International Civil Aviation Organization (ICAO) have regulations & set recommendations for the installation of aviation warning light systems on tall structures. Any structure that exceeds 200 ft about ground level is required to be properly marked with aircraft warning lights. Industrial chimneys, wind mills & turbines, smokestacks, water tanks, pylons, cranes, and broadcast masts & towers that reach above this height must be clearly visible to aircrafts at any time during the day or night.

Aircraft warning lights (AWL) are also required to have specific features in terms of beam pattern, light intensity, light color, and number of lights based on international regulations and national standards. The setup of your structure’s AWL system will vary depending on local terrain features, weather patterns, geographical locations, and the shape & layout of the structure or surrounding structures that need to be lit.

Types of Lights

 According to the ICAO, the lights used in an AWL system must be distinguished by a set of parameters: beam patter, color, intensity, and flash rate. There are 3 main groups to consider as stated by the ICAO:

  • Low intensity obstruction lights: these lights should be used where the object height above the surrounding ground is lower than 45 m.





  • Medium intensity obstruction lights: should be used where the object height above the level of the surrounding ground is higher than 45m.






  • High intensity obstruction lights: these lights should be used to indicate the presence of an object if its height above the level of the surrounding ground exceeds 150m.
We CDT has specialize in Aircraft Warning light System over 8 years, our light has approved by CE,CAAC,ICAO. And Our Quality Management System is registered to ISO 9001:2015.

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