NF C55-132-3*NF EN IEC 63132-3:2020 Guidance for installation procedures and tolerances of hydroelectric machines - Part 3 : vertical Francis turbines or pump-turbines
2020NF C55-132-3*NF EN IEC 63132-3:2020 Guidance for installation procedures and tolerances of hydroelectric machines - Part 3 : vertical Francis turbines or pump-turbines