100572 Walpole SGT4 Tertiary Connection

The works comprise the completion of the remaining design & infrastructure works required for the Walpole SGT4 Tertiary Connection Project, including installation of a tertiary cable box on SGT4, a 13kV transformer, a 13kV disconnector and associated earthing switches, supporting structures, busbars and connectors, protection and control systems, substation control and ancillary systems, 13kV cable systems and terminations, LVAC and DC connections, testing and commissioning, interface commissioning with connection assets and the National Grid transmission system, and all associated civil engineering works.