Runway Threshold Identification Light is a system of two white directional flashing lights. It is part of the guidance system on an airport.
The system is used to identify the threshold, providing guidance during the approach for the pilots. This system is used on VFR airports or instrumental non-precision airports.
The position of the airport runway lighting products is one on the right and one on the left or the threshold lights.
The flashes are synchronized and have a frequency between 60 to 120 per minute.
Runway Threshold Identification Lights are visible from every long distance giving the pilot time to adjust the flight and to make a safe and acquired approach for landing during the night or in reduced visibility conditions.
Construction
Housing – powder-coated aluminum, RAL 1004 (aviation yellow)
Anti glare visor – powder-coated aluminum, RAL 9005 (gloss black)
Diffuser – clear poly-carbonate UV pretected
Cable gland – nickel-plated brass
Fastening system – powder-coated aluminum, RAL 1004 (aviation yellow)
Fasteners – stainless steel
The mounting system can be on frangible low brackets or on baseplates with frangible coupling
Electrical Characteristics
Power consumption: 20W
Power supply: 110/230V AC from mains AC parallel lighting circuit
Optional supply: in a constant current circuit from V3 controller with 3 brightness steps (10, 30 and 100%)
Optional supply: from 6.6 A powered from CCR
Optical Characteristics
Runway Threshold Identification Light is made with high power OSRAM LEDs and special lenses to create the brightness intensity values complies with ICAO requirements Annex 14 Vol.1 Figure A2-10