This standard is applicable to heat-supply steam turbines with a power of 500-300000kW and a main steam pressure of 13-170kgf/cm2 (absolute), but does not include atomic heat-supply steam turbines, steam turbines for industrial driving and heat supply, and steam turbines for special needs.
GB/T 4773-1984 history
2007GB/T 754-2007 Parameter series of steam turbines for power plant
1984GB/T 4773-1984 Parameters of steam turbines in conventional combined heating and power stations
GB/T 4773-1984 Parameters of steam turbines in conventional combined heating and power stations was changed to GB/T 754-2007 Parameter series of steam turbines for power plant.