Probabilistic Safety Assessment to 1000 MW PWR Plant during Shutdown State

ZHAO Bo; LI Xiaoming; LI Lin

Mar. 2025

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ZHAO Bo, LI Xiaoming, LI Lin. Probabilistic Safety Assessment to 1000 MW PWR Plant during Shutdown State[J]. Nuclear Power Engineering, 2012, 33(3): 74-78.

Citation:

ZHAO Bo, LI Xiaoming, LI Lin. Probabilistic Safety Assessment to 1000 MW PWR Plant during Shutdown State[J]. Nuclear Power Engineering, 2012, 33(3): 74-78.

ZHAO Bo, LI Xiaoming, LI Lin. Probabilistic Safety Assessment to 1000 MW PWR Plant during Shutdown State[J]. Nuclear Power Engineering, 2012, 33(3): 74-78.

Citation:

ZHAO Bo, LI Xiaoming, LI Lin. Probabilistic Safety Assessment to 1000 MW PWR Plant during Shutdown State[J]. Nuclear Power Engineering, 2012, 33(3): 74-78.

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Probabilistic Safety Assessment to 1000 MW PWR Plant during Shutdown State

CNNC China Nuclear Power Engineering Co., Lid, Beijing, 100840, China

Received Date: 2011-02-25
Rev Recd Date: 2011-12-23

Available Online: 2025-03-08

Abstract

Abstract

This paper initiates a study focused on level 1 Probability Safety Assessment（PSA） for shutdown operation at 1000MWe PWR.Shutdown PSA models considering different plant outage types are constructed respectively to evaluate the risk of LOI-RRA operation.The application of SPAR-H method is also evaluated.The results show that the potential risk during shutdown should not be ignored;PSA for shutdown states could help to prompt the improvement in procedure to reduce the risk in shutdown condition.Going through the LOI-RRA operation at cool shutdown refueling outage significantly increases the plant risk;the dominant factor contributing to CDF is human error.
- Probability safety analysis,
- Nuclear power plant,
- Shutdown state,
- LOI-RRA water level