Proceedings of the

The 33rd European Safety and Reliability Conference (ESREL 2023)
3 – 8 September 2023, Southampton, UK

Methodology of Compiling A Steam Generator Maintenance Plan

Karel Vidlak1 and Dana Prochazkova2

1Nuclear Power Plant, 373 01 Temelin, Czech Republic.

2Czech Technical University in Prague, Technicka 4, 166 00 Praha 6, Czech Republic.


The steam generator in nuclear power plant is designed in such a way that it physically separates the primary circuit that contains radioactive substances from the secondary circuit, which no longer contains them. The steam generator is a category 1 device, and therefore it is required to minimize breakdowns. Therefore, a device care strategy is chosen that ensures high reliability, i.e. minimizes the occurrence of failures and does not tolerate functional failures between established maintenance cycles. For economic reasons, the preventive maintenance program is controlled by the maintenance of the items that contribute most to the failure of the steam generator. In the paper, we show procedure by which we prepared steam generator maintenance plan for proactive preventive maintenance.

Keywords: Maintenance, Steam generator, Risk, Operational safety, Monitoring the critical points, Proactive preven-tive maintenance, Maintenance program.

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