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Active & Passive Medium-sized Advanced PWR

HPR1000 ACP100 ACP600

General Descriptions

ACP600 is a medium-sized advanced pressurzed water reactor product independently developed by CNNC . Based on mature nuclear power technology of CP600, it takes reference of the design philosophy of the advanced PWRs around the globe, adopts the ‘Active + Passive’ safety design technology and is able to meet utility requirements for Gen III NPP.


No. Design Description Unit Parameters
1 Nominal Electric Power MWe ≥670
2 Designed Lifetime Year 60
3 Refueling Cycle Month 18(with capability to extend to 24 months)
4 Plant Availability % ≥90
5 Peak Ground Acceleration g 0.3
6 Core Damage Frequency 1/reactor year <1×10-6
7 Large Release Frequency 1/reactor year <1×10-7
8 Occupational Exposure Dose m Sv/reactor year <0.5
9 Operator Nonintervention Period Minute >30
10 Plant Autonomy Period Hour 72


Single-unit Layout


Double-Shell Containment


Beyond-Design-Base-Accident(BDBA)/Severe Accident(SA) Prevention and Mitigation

Phenomena Containment failure
Containment failure Hydrogen Detonation Containment Hydrogen Combination System
High Pressure Molten Corium Ejection, Direct Containment Heating, Induced SGTR Fast Depressurization System for RCS
Long Term Overpressure Containment Filtration and Venting System Passive Containment Heat Removal System
Basement Melt-through Reactor Cavity Injection and Cooling System
Station Blackout Passive Residual Heat Removal System of Secondary Side
Other Measure RPV High-point Venting System, Habitability Design of Main Control Room, SAMG and etc.

Feedbacks from Fukushima Accident

Protection against External Events

Double-shell containment Seismic design with input of 0.3g peak ground acceleration Protection against large commercial air crash
General Descriptions Important Paramenters Plant Layout Double-Shell Containment Safety Features