UAV as an inspection tool for power lines in Troms: Assessment of UAVs as a viable alternative to already established methods for inspection of power lines.

Abstract

Power line inspection is one of the most important things in a modern society, and therefore it is important that it be kept in a functional state. Because of this, many methods are used to keep it that way. There are many factors to consider before using UAVs as a viable alternative to already established methods. Factors such as robustness against harsh weather, limits to its range and battery life are all important factors which will affect the overall usefulness of UAVs compared to other methods. The main purpose of UAVs in the context of electrical transmission grids is to use for inspection of power lines and poles. Troms Kraft have over 3500 kilometres of power lines above ground, and these must be inspected on a yearly basis according to Norwegian law. Often used methods for this include the usage of helicopters, snowmobiles and by foot, and UAVs could potentially be used as an alternative to these in many situations. When UAVs are being operated by humans, there are many things that could go wrong, leading to a loss of the UAV. It is important to be aware of these factors, what consequences they could lead to and how to prevent them from happening.