Visual, Corona & Infrared Inspection of overhead power lines and Substations can be performed in three different ways:

•    Land Inspection, by patrolling the lines and Substations by 4x4 vehicles
•    Aerial by Helicopters, we have achieved agreements with several helicopters operators along the globe to provide this service worldwide
•    Aerial by UAV Drones, Our partnership enable us to use Hybrid UAV Drones with almost 4 flying hours autonomy to provide this service worldwide.

   LAND INSPECTION

Crews performing land inspection patrol the lines by 4X4 vehicles with Crews equipped with hand carried HD cameras, binoculars and hand tools set. Any damage or incident encountered will be properly filmed, photographed and written down on daily work report and associated Check Lists. Besides, any relevant event observed will be immediately reported to customer´s responsible for quick resolution action. Live works technicians will climb towers when necessary for accurate and detailed observation of potential incidents. Inspection to be developed in live line basis will include checkup of condition status of right of way, access, signalization, vegetation, steel structures, foundations, legs corrosion, insulators, surge arrestors, conductors, hardware and fittings comprising wind dampers, spacers, clamps, cotter keys, warning lights and spheres, and OPGW.

   HELICOPTER INSPECTION:

Aerial Inspection from Helicopters is the fastest and reliable solution to cover large distances of overhead Transmission & Distribution Power Lines. High Line Division S.L. has achieved agreements with several operators along the globe in order to provide this service worldwide. At the time we perform visual inspection recording high definition imagery, latest technology gimbals featuring infrared and ultraviolet cameras for Corona & Partial Discharges Detection

   UAV DRONE INSPECTION:

In order to reduce to our customers the operational time, costs and personnel involved in performing overhead transmission lines inspection, as well as following up our objective to implement the latest techniques in our operations we include the aerial UAV Drone inspection to our core business. For this purpose, at the first stage we started with the use of Helicopters and currently with Unmanned Aerial Vehicles (UAV), commonly named Drones.

We faced the challenge of increasing the low autonomy of these aircrafts. Nowadays, with an average of half an hour power supply from electrical batteries, which in the scenario of very high voltage transmission lines (300 kV and above) forced to stop uncountable times the inspection flight to replace batteries. Finally we succeed this challenge with a Hybrid drone, Petrol and Electric supply, where the petrol engine generates electric power to refill the battery during the flight of the UAV.