1) Background
The IAEA identified through the comprehensive safety assessment of VVER-1000 reactors that the existing DC supply, in particular batteries to be a safety issue because of the following:
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Contract information field: Nuclear Power Plant
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Contract information field: Nature
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Background
1) Background
Project Background
Background
The TACIS programmes for Nuclear Safety agreed upon between the European Commission and the relevant authorities of beneficiary states contained provisions for on-site assistance (OSA).
Objective
Objective
Objective
The original SG control valves had to be replaced by modern Western valves. CIS manufactured valves of the required quality were not available. Therefore a joint venture was founded by Tchechov Works and Siemens.
Result
Objective
The aim of the project was the replacement of the existing safety valves on the steam generators on one of the 4 Units by modern safety valves. The objective included supply of equipment, related services, spare parts, auxiliary equipment and tools.
Objective
The present signalisation was considered unreliable. The sensors did not work properly and have led to the unintentional start of the fire fighting system.
The project covers the supply of the following equipment:
Objective - lot 2
The present signalisation was considered unreliable. The sensors did not work properly and have led to the unintentional start of the fire fighting system.
The project covers the supply of the following equipment:
Objective
The objective was to replace 430 units of accumulator cells for safety related systems, among them control systems and SCRAM system at Balakovo Nuclear Power Plant.
Result
Objectives
Two prototypes of ECCS-pump (Emergency Core Cooling System) intake filters were designed, supplied and installed in the framework of this project, including the budget of project R1.02/96C.
Objectives
Objective
Objectives
Objective
The project includes procurement of special maintenance equipment for large scale repair and replacement of heavy components like steam generators, pipes and valves.
The envisaged tools and equipment include:
Objective
This project consists of replacement of the current 2 (two) booster pumps for the feed water pumps in one Balakovo NPP.
Result
This project was combined with project R1.02/96A and jointly tendered, contracted and supplied.
Objective
This project consists of replacement of the current 2 (two) booster pumps for the feed water pumps in one Balakovo NPP.
Result
This project was combined with project R1.02/95G and jointly tendered, contracted and supplied.
Background
Steam flow meters originally installed on the main steam lines are not reliable, and their failure led to several reactor scrams in the past, because steam flow measurement is used for controlling steam generator water level.