The technical requirements for equipment exceeding 800kV have largely been developed by individual users/manufacturers such that there is limited worldwide standardization. This WG will review the present state-of-the-art of project specific and (inter)national technical specifications for all equipment within the scope of A3 at voltages of 765kV and above. The review will identify areas of commonality and of divergence. The technical background of all aspects of the available specifications will be analyzed with the intention of identifying and reporting current “best practice”.