Airport runway lights are wired in strings of about 10 12 lights in series.
Airport runway lights voltage.
When an instrument runway lighting is designed the last 600 metres 2 000 ft or one half of the runway length available whichever is less are bi directional.
The whole string is fed from a constant current source set to deliver up to 12 amps at up to 1500v 50hz ac rms depending on the brilliance required.
For example runway edge lighting design a system of elevated lights used to outline the runway s edges and ends allows you to route the supply and return cables together from the source to the runway.
Airfield runway bulbs are used in airfield lighting fixtures for taxiway edge lights runway edge lights runway touchdown zone lights runway end identifier lights and runway signage and markers.
These light systems are classified according to the intensity or brightness they are capable of producing.
Integro secondary extension cords are used for making above or below ground connections between taxiway runway and sign lights papi s vasi s and other specialty lights and the series isolation transformer where they are located at different positions on the airport runway.
The majority of runway edge lights are clear or white but there are some exceptions to provide additional information to pilots in certain circumstances.
Runway edge lights are used to outline the edges of runways during periods of darkness or reduced visibility.