Balisor

Balisor is a system of illuminated beacons for high voltage power lines using a cold-cathode low-pressure neon lamp,[1] used as an aircraft warning light.

High voltage power cables, particularly those close to airports, need to be visible day and night.

During the day, brightly coloured balls positioned along the length of the cables are sufficient, but during the night, lighting is necessary.

The system is extremely simple, efficient and reliable and is considered the most economically viable solution[citation needed].

The interest of the system lies in the way it obtains a power supply directly from the single cable on which it is mounted.