These recommendations are based on Chapter 6 of Annex 14 of ICAO (International Civil Aviation Organization latest edition).
The number of lights per level depends on diameter of the stack: As per FAA and ICAO aerodrome design manual, 3 lights may be required per level if the diameter is less than 6 meters, 4 lights if the diameter is between 6 and 30 meters, 6 lights if the diameter is between 30 and 60 meters and 8 lights if it is above 60 meters.
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Heigh of the obstacle |
Day Mraking
White Flash |
Night Marking
Steady of Flashing Red |
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Over 150 meters |
High Intensity every 105 meters |
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90-150 meters |
Type A Medium Intensity at the top level and at the intermediary level if the height is superior to 90 meters |
Type B Medium Intensity at the top and intermediary levels |
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45-90 meters |
– Type B Medium Intensity – Type B Low Intensity at the intermediary level |
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0-45 meters |
– Type A Low Intensity |
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Recommendation of our Lights for Chimneys
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Pictures |
Description |
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1 |
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ZG2H High-Intensity Light, White Flash, daylight, twilight and night |
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2 |
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ZG2AS Combined Type A and B, Medium-Intensity Light, white flash by day, and red by night |
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3 |
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DL32S Low-Intensity Light, Type B, red by night |
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4 |
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DL10S Low-Intensity Light, Type A red steady by night |
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5 |
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CBL0B Control Cabinet |
