Hydro-Québec wished to develop a 315 kV double-drop tower that could be used in areas where space is limited. Prior solutions that involved using three towers based on a specific configuration were not suitable for some projects with space constraints. CIMA+ was tasked with producing the detailed design of this type of tower that had never been used in the province of Quebec.
The new tower is comprised of a total of 12 cross-arms and a set of 6 vertical cables used to connect the two primary circuit conductors to the double-drop circuit conductors, either at the lower or upper cross-arm level. Furthermore, analysis also covered all cables attached to the tower, in order to include their impact on the distribution of internal forces.