High voltage transmission line stringing operation. Usage of unmanned aerial vehicles for installation of conductor and grounding wires with optical fibers

The topic of this article, except of description of general issues concerning stringing, is also choice between two aerial method of unrolling initial rope, taking into account various technical, financial, and locational aspects as well as availability of offers on the market, which might help determine the most suitable and appropriate solution. Additionally, the following work focuses on limitations and advantages, as well as considerations based on exemplary section from real, currently under construction high voltage 400 kV line Ostroleka-Olsztyn Matki, which deadline is set in the beginning of January 2016. Usage of exemplary section enables to perform more thorough financial comparison between utilization of drone or helicopter, as well as expedites assessment process between both aircrafts, in the context of transmission line construction.