Distribution network aerial photographing benefits in practice

Maintenance inspection has an important role for distribution network companies. Inspections should be homogeneous and cost-efficient, and, at the same time, additional values should be created where possible. Elenia Oy has made use of an aerial photography system for its overhead line medium and high voltage network. Clear benefits and additional values are observed with the technique. This paper presents experiences and benefits that Elenia has gained from this. Aerial photography is a more cost-efficient inspection technique than traditional walking inspection, and it offers additional values of scale for the Elenia organization and its partnership network in a variety of areas.