The overhead transmission line design is one of the main services provided by SP. These transmission lines often cross areas situated far from the main centres of population. The Lufubu Cascade project in Zambia includes several overhead transmission lines (132 and 330kV). In this case, where preventing vandalism and unauthorised access is essential, the Design Pylon provides a superior alternative to the traditional lattice tower. During Lufubu transmission system design, SP has assessed the possibility of maximizing benefits of Pylons taking advantage from BYSTRUP's design by a “pros&cons” analysis with the specific purpose of minimizing vandalism acts to the line and O&M impact to investment costs.