CLIENT: UGL, Transgrid
APD Global has designed and detailed the 500kV double circuit strain towers to be used in an alpine area of the proposed Humelink West Project. The VTM tower is a heavy tension/terminal tower with a maximum height of 74.2m and weighs up to 150 metric tonnes. The tower legs below waist are designed with double cruciform angles to support the quadconductor line at 75° maximum line angle and a 10° line at terminal configuration. Towers were designed and analysed using PLS TOWER and spreadsheets developed in house. A 3D model was created in Tekla BIM software to aid in production of the assembly and workshop drawings.