Aircraft Warning Lights are a kind of lighting signal fixtures designed to make tall structures more visible to be seen clearly for aircraft to avoid the crash to the obstacles both day and night.
Generally speaking, you are impossible to find a universal standard that defines the mandatory requirements for how to design and install aircraft warning light, Anyway, two recognized standards in the world are the FAA (Federal Aviation Administration, an agency of the United States Department of Transportation) and ICAO (International Civil Aviation Organization, a United Nations agency)
There are three types of aircraft warning light mainly used for varied height of obstacles: low intensity obstruction light, medium intensity obstruction light, high intensity obstruction light.
1. Low intensity obstruction lights are designed for buildings with low extension and height above the ground below 45 meters. If the use of low intensity obstacle warning lights is insufficient or an intensive warning is required in special case, then medium intensity obstruction light should be installed to replace the low intensity obstruction light, or the low intensity obstruction lights can be combined with medium intensity obstruction light together.
2. Medium intensity obstruction lights can be be installed where the object whose height above the ground is more than 45 meters but lower than 150 meters. When you design several levels, top and middle positions can install medium intensity obstruction light, the lower position can install low intensity obstruction light. If the use of medium intensity obstacle warning lights is insufficient or an intensive warning is required in special case, you can install high intensity obstruction light at the top position to replace the medium intensity obstruction light.
3. High intensity obstruction lights should be used to indicate the presence of an object if the height above the ground reaches up to 150 meters and requested obstruction light is very crucial to indicate the obstacles at daytime. You can install high intensity obstruction light at the top of obstacles, combined with medium intensity obstruction light at the middle height of the obstacles and low obstruction light at the lower height of the obstacles.
4. The regulations of the FAA (but not in the ICAO guidelines) request dual aircraft warning lighting system to enhance the signal when one device shut down, that is say, one of aircraft warning light is broken, the other will immediately be turn on automatically to maintain the continuous working. Dual aircraft warning lighting system contains two pieces of the same intensity obstruction lights, one is used for main function, the other is used for emergency function.
This article was aimed to give a short idea on the products related to aircraft warning lighting system and does not pretend to be a guideline, if you want to know suitable type and quantity of obstruction light you need for your projects, please contact SUREALL technical team.