This standard specifies the design criteria for priority power supply (PPS) and priority power supply and safety level (level 1E) power system, switchyard, power transmission system and interface of alternative alternating current power supply (AAC) in nuclear power plants.
GB/T 13177-2000 history
2008GB/T 13177-2008 Preferred power supply for nuclear power plants
2000GB/T 13177-2000 Standard for preferred power supply for nuclear power plants