Which of the following conditions must be present in order for the Main Turbine exhaust hood spray solenoid valve (HV-6556) to automatically open?
A. Main Turbine speed 210 RPM, increasing
B. Main Turbine speed 540 RPM, increasing
C. HP Turbine exhaust steam temperature > 200°F, increasing
D. LP Turbine exhaust steam temperature > 194°F, increasing
