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Background

The primary overpressure protection system is designed to protect the reactor equipment and pipelines against primary circuit overpressure phenomena during different transients.

1) Background

The present project is a continuation of on-site-assistance (OSA), rendered by RWE Energy as the EC appointed Consultant to Zaporoshe NPP.

2) Objectives

This project had 2 main different categories of objectives and tasks:

Objectives

In the framework of the “Tacis Nuclear Safety Programme”, it was decided to increase the nuclear safety of the units 1 through 6 at the Zaporozhye NPP by improving the protection of the primary circuit from overpressure under normal and emergency modes.

Project Description (to be included in the Database)
The aims of the On-Site Assistance at the RNPP have been:
1. to improve operational safety culture of the RNPP (Soft OSA) through general On-Site Assistance to RNPP eg.

1) Background
Continuation of TACIS OSA (On-Site Assistance) at South Ukraine NPP.

1) Background
The working plan and budget of the NNEGC-ENERGOATOM (EA) for the year 2000 defined training and continuing education of the managers and of the manager successors. However, fulfilment of these plans proved to be complicated due to the following reasons:

1) Background
Reliability of valves used for controlling the essential systems is a major element influencing the operational safety of NPPs. Operating NPPs in Ukraine contain approximately 5000 foreign-made valves of Western European supply.

1) Background
Continuation of TACIS OSA (On-Site Assistance) at Rovno NPP.

Project Aims

The work to be performed under this contract was aimed at preparing the co-operation with the Ukrainian NPP Zaporozhe in continuation of a previous Tacis programme implementation.