The new 220 kV pylon designed for Landsnet in Iceland is a single circuit high voltage overhead transmission tower. The focus of the project has been to create a beautiful pylon, which nicely blends in to its surroundings.
The new design pylon consists of two main components – a tubular steel shaft and three tubular crossarms. The diameter of the tubular steel shaft varies from 1100 mm at the base to 300 mm at the top. Similarly, the crossarms are made of tapered tubular sections which are bent downwards to create an elegant expression. The simplicity of the construction is emphasised by ensuring that all mechanical connections and interfaces are ”hidden” within the tower creating smooth transition between each element.
The total pylon height is 29 m and the width is about 9 m.
Development of design concept for cast nodes and cross arm in collaboration with ARA Engineering. Detail design of cast components (including 2D and 3D drawings). Final design of interfaces between castings and fabricated steel members (welded and bolted). Design of bolted connection between base and shaft section. Technical specifications including NDT requirements for castings
The pylons are being installed in early 2016.
Here you see one of the arms being assembled.