Since runways can be more than two miles long the advantage is.
Airport runway lights voltage.
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.
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.
They are the high intensity runway lights hirl medium intensity runway lights mirl and the low intensity runway lights lirl.
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.
Airport runway lights are wired in strings of about 10 12 lights in series.
Runway edge lights are used to outline the edges of runways during periods of darkness or reduced visibility.
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.
The majority of runway edge lights are clear or white but there are some exceptions to provide additional information to pilots in certain circumstances.