Temelin NPP Status: The Challenge of Safety Improvements
 
Frantisek Hezoucky
 

The decision to construct a nuclear power plant at the Temelin site in the Czech Republic was made in 1980, as a result of an expert site selection for four units with VVER-1000 type 320 reactors. The contract for the supply of the technical design from the former USSR was signed in 1982. This design included the reactor, auxiliary buildings and diesel generator stations. The design of the balance of the plant was entirely in the hands of the Czech party, according to the contract.

The basic design of Temelin units 1 and 2 was completed by the Czech architect–designer company Energoprojekt (EGP) of Prague in 1985. The site licence was issued in 1985 and the construction licence in November 1986. Actual erection of the buildings was begun in February 1987. Domestic specialists analysed and subsequently modified the original design before 1989.

After 1989, under the new political and (especially) economic conditions in the country, the need of the Czech Republic for a 4000 MWe power plant was re-evaluated, and at the same time new analyses of the design safety level were performed. In March 1993 the government of the Czech Republic decided that construction of Temelin would be completed with two units.

The present schedule for commissioning and commercial operation of the two units at Temelin are shown in Table 1. A general view of the Temelin site is shown in Figure 1.

Nuclear Safety Legislation Framework

The licence application for the commissioning and operation of a nuclear installation must be accompanied by, among other things, the Final Safety Analysis Report (FSAR), the content of which must include:

  1. A description of changes to the original design which was assessed in the Preliminary Safety Analysis Report.
  2. Supplementary and more precise evidence of nuclear safety and radiation protection measures.
  3. Technical specifications for the safe operation of the nuclear installation.
  4. Neutron-physics characteristics of the nuclear reactor.
  5. The methods of radioactive waste management.
  6. Quality evaluation of classified equipment.

International Expert Appraisals

International missions to the Temelin NPP date from the beginning of the 1990s. These missions were invited to provide an independent evaluation of the original Russian design and some other aspects of the plant construction from the stand-point of internationally adopted standards.

In 1990, on the invitation of the (at that time) Czechoslovak government, the IAEA organised three international expert missions:

  • A mission aimed at the evaluation of Temelin site safety (April 1990).
  • A pre-operation safety review (Pre-OSART) mission to assess the plant construction practice and preparation for safe operation (April/May 1990).
  • A mission focused on the safety systems, core design and safety analyses evaluation (June/July 1990).

These missions stated that the design of Temelin NPP, its siting, and the organisation of its construction did not show any significant deviations from international practice. The final reports of those missions offered some partial recommendations as a contribution to enhancing the plant’s safety level. A follow-up Pre-OSART mission took place in February 1992, to assess to what degree the 1990 recommendations were considered and implemented in the construction and in the preparation for future operation.

In addition to the activities listed above, in 1991 the Czech electricity company CEZ contracted the consulting company Halliburton NUS of the USA to perform an independent audit focused on the plant’s technical concept and to verify whether the plant would be licensable with respect to standards accepted for a plant built in Western Europe or the USA in the mid 1990s.

The audit team concluded that the overall technical concept of Temelin was in many respects consistent with modern reactor designs used in the West. Temelin included, or could be practically modified to include, essentially all features necessary to reflect Western nuclear power plant standards of the mid 1990s. Some of the initial Temelin design concepts and criteria fell short of modern practices, but these shortcomings could be removed by changes in the design. These included the addition of a new instrumentation and control (I&C) system, improved fuel and core design, improvements resulting from VVER and PWR operating experience, and improvements resulting from the audit team recommendations.

In addition, some analyses were performed by Colenco of Switzerland and TÜV Bayern of Germany, which specifically assessed the I&C design.

Among other significant IAEA activities with respect to Temelin, the following should be especially mentioned:

  • A quality assurance review (QARAT) mission focused on quality assurance (March/April 1994).
  • A consultants’ meeting on Temelin design changes at the IAEA headquarters in Vienna (November/December 1994).
  • A mission focused at fire protection of the plant (February 1996).

A special mission of the IAEA in 1996 examined how the Temelin plant has overcome safety issues identified by the IAEA as generic for nuclear power plants with VVER-1000 type 320 reactors. The mission evaluated the revised design, the implementation of previously suggested alterations, and preparations for operation. This included compatibility issues, i.e. the compatibility of modern Western technology with the original Russian design.

In general, this mission concluded that the future plant operator had made a significant effort in improving the plant design, and highly commended this effort. The mission emphasised that the combination of Western and Russian technology in the Temelin design had been considered very carefully indeed. In the mission’s opinion, in some cases the combination of Western and Russian technology resulted in a pronounced improvement of the safety assurance level, compared with international practice.

Another IAEA mission focused on commissioning Temelin took place in February 2000, and an OSART (Operational Safety Assessment Review Team) mission is planned for February 2001. A list of the international missions is shown in Appendix 1.

Main Design Changes and Safety Improvements

The results of the independent international reviews organised by the IAEA, the proposals of Czech specialists (including the recommendations of the State Office for Nuclear Safety (SUJB)), and the results of the NUS Halliburton audit were used as a basis for technical improvements which, following implementation prior to commissioning, will assure that both units of Temelin NPP will reach the engineering standards usual for Western power plants at the end of the 1990s.

Among a number of improvements related to the replacement of components and systems, the following items have been replaced:

  • the I&C system;
  • the core and nuclear fuel;
  • the radiation monitoring system;
  • the diagnostic system, which has also been supplemented;
  • cables (replaced with fire-retardant and fire-resistant ones).

In addition, significant changes were made to the electrical design (electrical protection, addition of two non-safety grade diesel generators, increased discharge time of batteries, etc.). All significant design modifications are summarised in Appendix 2. A view of the Temelin control room is shown in Figure 2.

Temelin NPP Safety Analyses

Westinghouse has provided the fuel, I&C system, safety analyses and emergency response guidelines for Temelin. The scope of Westinghouse involvement permits the application of the same systematic and integrated approach to nuclear safety (control, monitoring, protection) that is applied to a Westinghouse designed plant.

This approach integrates core design, plant and core monitoring, plant and core control, protection system design, safety analyses, core and plant operating limits, and emergency response guidelines. This integrated approach enhances safety defence-in-depth, which is considered to be composed of the following elements:

  • Control systems (maintain plant parameters during normal operation).
  • Alarms and manual controls (allows the operators to observe and correct deviations from normal operation).
  • Limitation systems and backup controls (the Temelin design provides for extensive "supervisory" control that can automatically take rapid action in the event of a malfunction, thus avoiding the need for protective action that would trip the plant).
  • Primary Reactor Protection System (PRPS) — a safety system of Class 1E providing automatic protection to shut down the reactor, and automatic actuation and control of emergency safeguards features (ESF).
  • Diverse Protection System (DPS) — a safety system of Class 1E providing backup protection for a postulated failure in the PRPS (provides reactor trip, some ESF actuation and control).

As stated above, a systematic approach to safety analysis is also a systematic approach to protection system design. That is, one must:

  • Define unacceptable consequences (offsite dose, fuel failure, etc).
  • Determine limits on plant operation which could lead to unacceptable consequences if exceeded.
  • Define required protection system functions based upon events and consequences.
  • Select acceptance criteria, assumptions and methods.
  • Analyse the complete spectrum of plant conditions for the accident scenarios considered.
  • Demonstrate by results of analyses that the protection system keeps the plant safe and that the consequences are consistent with accepted criteria.
  • Develop limiting conditions for operation and monitoring requirements: protection system setpoints derived from the safety analysis; plant operations maintained within limits assessed in the safety analysis.

Safety Improvement Programme

In accordance with CEZ policy, as stated in its safety strategy, it is planned to perform continual safety assessments on the plant and to incorporate additional improvements beyond the framework of the legal requirements. This is one of the measures aimed at attaining a high safety level.

The Safety Improvement Programme has been defined for the period after the start of trial operation of unit 1. However, fulfilment of some items of the programme has been or will be initiated in advance. The programme is an open document that will be systematically updated on the basis of:

  • periodic safety assessments of the NPP units;
  • WANO performance indicators;
  • the results of operational experience;
  • assessments of supervisory bodies (the nuclear and civil safety authorities);
  • recommendations of independent assessments (by WANO, IAEA, external audits).

The aim of the programme is not only to improve safety but also the analytical assessment of safety and the impact on the environment, as well as improvements in the organisation and human factors. The programme will be updated every December (the first update will be done in December 2000) based on preliminary items/activities discussed by the Temelin Safety Technical Commission Meeting, or whenever required on the decision of the top management of the Temelin Construction Division. The first version of the programme is shown in Appendix 3.

General Conclusions of the March 1996 Mission

  1. It is recognised that CEZ has made a large effort to improve the design of Temelin independently of the identification of safety issues by the IAEA. The organisation of its actions in terms of the IAEA issues was only a convenient way to demonstrate that all of the issues are being taken into consideration.
  2. The scope of national participation in the Temelin design, manufacturing and construction has had a positive impact on solving several safety issues identified in VVER-1000 type 320 plants.
  3. The adoption of Western technology and practices for part of the scope of supply (e.g. fuel, I&C, radiological protection, accident analysis) has helped to solve a large number of safety issues identified for VVER-1000 type 320 NPPs.
  4. Several safety issues which are addressed by ongoing activities have not been completely solved, but the related activities are properly managed and, in most cases, there seems to be sufficient time for their completion.
  5. The mission recognises the effort of Temelin NPP to ensure that all the safety issues identified by the IAEA have been addressed. In general this effort was successful, since no issue has been identified which has not been addressed to some degree. Most of the issues have been properly addressed.
  6. The combination of Eastern and Western technology and practices and the potential compatibility problems seem to have been carefully considered at Temelin. In several cases, the combination of Western and Eastern technology has led to safety improvements in comparison with international practices.

Conclusion

Temelin nuclear power plant is an excellent combination of verified technologies. It is a combination of the very good Russian design safety concept, the advanced Westinghouse control system, and the precise work of Czech building and engineering companies. The plant's specifications are equivalent to those applicable in the most advanced European countries. Temelin will be a significant addition to the Czech Republic's contribution to avoiding pollution and climate change. One year of operation will avoid the emission of 12 million tonnes of CO2 and 23 600 tonnes of SO2.


Appendix 1. International missions of the IAEA to Temelin NPP.

         
 

Mission Objective / Dates

 

Focus / Participation

 

Conclusions

 

Site Safety Review Mission
(4/1990)

 

* The site selection assessment including demographic conditions, dispersion features and external events
* Italian, Austrian, British, Dutch and IAEA experts

 

* The mission’s conclusion was that the Temelin site meets all safety criteria in accordance with the IAEA recommendations

 

Pre-OSART Mission
(4-5/1990)

 

* Evaluation of 10 safety aspects of the standard agenda of Pre-OSART mission
* Canadian, American, Italian, German, Finnish, British and IAEA experts

 

* The overall conclusion was that the work carried out at the site is of a high quality. The mission identified good practices which are of interest for other plants and made several proposals for improvements including a positive statement about the intent to replace the existing I&C with a Western advanced design

 

Design Review Mission
(6-7/1990)

 

* The reactor core and safety systems design assessment
* American, French, German, Bulgarian and IAEA experts

 

* The design was found to be very similar to modern PWR plants which have been put into operation in other countries. The mission did not identify any major safety problems and recommended possible further improvements

 

Pre-OSART Mission Follow-Up
(2/1992)

 

* The Pre-OSART findings and recommendations made in 1990 reviewed in order to determine the actions resulting from the previous mission
* British, Italian and IAEA experts

 

* The conclusion was that despite the large number of recommendations made, the plant has made satisfactory progress in addressing the issues raised by the Pre-OSART mission review

 

Quality Assurance Review (QARAT) Mission
(3-4/1993)

 

* QA system assessment, mainly management and QA Department functions
* French and IAEA experts

 

* The expert group confirmed the positive development of this field being managed by a competent team and the senior management

 

Leak Before Break (LBB) Application Review Mission
(5/1993, 12/1993, 12/1994, 12/1995)

 

* A review of the modern Western concept application during the integrity assessment of the high energy stressed pipelines
* Austrian, Japanese, German and IAEA experts

 

* It was confirmed that the LBB application was successfully performed at Temelin in accordance with world practice and that breaks are extremely unlikely

 

Fire Safety Mission
(2/1996)

 

* A fire analysis, licensing and operation performance review from fire safety point of view
* Canadian and IAEA experts

 

* The experts’ conclusion was that significant improvements had been made in accordance with international trends in fire protection

 

Probabilistic Safety Assessment Review Missions
(5/1995 and 1/1996)

 

* Transfer of technology, methodology and results of the PSA study review
* Austrian, American, German, British, Spanish and IAEA experts

 

* The general conclusion was that the Temelin team has adopted the PSA methodology very well and despite conservative assumptions the results confirmed the high level of plant safety

 

Safety Issues of VVER-1000 Resolution Review Mission
(3/1996)

 

* A review of resolution of VVER-1000 safety issues at Temelin which had been identified by the IAEA as a result of its thorough analyses
* French, Spanish, Russian, Swedish, German and IAEA experts

 

See General Conclusions below

 

Physical Protection Assurance Mission (IPPAS)
(9/1998)

 

* Review of the NPP physical protection aspects defined by the IAEA
* American, French, Finnish, Canadian and IAEA experts

 

* The conclusion of the experts was very positive on the physical protection assurance and its licensing. They concluded that the system meets fully the international requirements

Appendix 2. Main design changes and safety improvements.

         
 

No.

 

Item Description

 

Note

 

1

 

Instrumentation and control (I&C) system replacement

 

I&C of units 1 and 2

 

2

 

Reactor core design and nuclear fuel

 

New nuclear fuel brings substantial nuclear safety enhancement, radioactive waste amount decrease and operational cost reduction

 

3

 

Radiation monitoring system (RMS)

 

Original system design did not comply either with technical or legislative requirements

 

4

 

TMDS

 

Primary Circuit Diagnostic System was a "white spot" in the initial project (listed in a book AIX)

 

5

 

Sipping system

 

Original Russian system (KGO) did not meet requirements of new legislative and Western standards

 

6

 

Bitumenisation line

 

Requirement for radioactive waste reduction (RAO) specified by Pre-OSART

 

7

 

Refuelling machine I&C

 

Replacement of original GANZ control system by Ansaldo system

 

8

 

Spent nuclear fuel compact storing

 

Compact grate allows substantial increase of storage capacity in the spent fuel pool

 

9

 

Full scope simulator

 

Operative personnel training assurance

 

10

 

Technical support centre (emergency preparedness)

 

Fulfilment of recommendations adopted after TMI accident

 

11

 

Inverters/rectifiers (AEG)

 

Replacement of original Russian AEP instrumentation (ANN) of safety systems power supply, 4th and 5th systems and protection systems was initiated by nuclear safety enhancement requirements

 

12

 

Penetrations (Škoda & ISTC companies)

 

Assurance of safe and reliable hermetic penetrations

 

13

 

Breakers J2UX replacement

 

Continuous negative operational experience from NPP BO and NPP DU (fires, etc)

 

14

 

Unit transformer penetrations (Passoni Villa bushings)

 

 

 

15

 

Replenishment of reserve power supply source for 2 HVB

 

Strict compliance with own consumption block energising principles

 

16

 

Common reserve DGS (diesel generator station)

 

Systems "nuclear safety related systems" added by emergency/accident resource to maintain this sort of supply for important and expensive unit equipment

 

17

 

Accumulator batteries capacity increase

 

AKU exchange was initiated by negative operation experience; capacity increase allows overcoming of defect states in total loss of supply regime

 

18

 

"Reserve protections" implementation and full selectivity in radial networks 6kV/nn assurance

 

Overall selective scheme ensures elimination of failure consequences in the unit electrical section (short-circuit, dead earth, etc)

 

19

 

Volume compensation system – electrical heaters continuous regulation (pressuriser)

 

Lower use of primary circle machinery components service life

 

20

 

Containment hydrogen recombiners

 

Elimination of post-accident hydrogen content in containment

 

21

 

Hydrogen post-accident monitoring system

 

Control of hydrogen post accident content development in containment

 

22

 

Valve replacement

 

Replacement of defect and low reliable valves

 

23

 

Reconstruction of stable fire extinguishing equipment (SHZ) of the outdoor power transformers

 

Adding of existing manual SHZ starters by automatic activation and modification of spray equipment baskets and increasing the number of nozzles, inter-wall installation

 

24

 

Secondary voltage regulation (SRKOČ)

 

Technical requirements of CEZ specified in relation to preparation of operation with UCPTE

 

25

 

Terminal NPP TE (TELETE)

 

Technical requirements of CEZ specified in relation to preparation of operation with UCPTE

 

26

 

Modification of essential cooling water and non-essential cooling water systems

 

Since the technical calculations were carried out it was important to implement modifications for system functionality assurance

 

27

 

Pump replacement

 

Producers ceased to exist, inappropriate characteristics

 

28

 

Containment sump modifications

 

Net construction modifications in compliance with tests carried out in Russia

 

29

 

Suction from containment (simple failure/defect)

 

Installation of one closing valve and adjacent piping under containment

 

30

 

Titanium tubing in condensers

 

Life service increase, transition to more advantageous chemical regime by pH increase

 

31

 

Control rod drive system (LPK)

 

Life service and reliability increase by use of Škoda innovated drives

 

32

 

New chemical control

 

Higher chemical control quality provides higher life serviceability of important components, especially steam generators

 

33

 

Safety analyses (US RG 1.70)

 

Analyses elaboration mainly in relation to fuel replacement and I&C

 

34

 

ATWS analyses

 

Analyses performance in accordance with the newest nuclear power knowledge

 

35

 

PSA – level 1 and 2 (probabilistic safety analyses)

 

Level 1 – discusses probability of active zone damage

Level 2 – discusses probability of leakage due to containment damage

 

36

 

Beyond-design analyses

 

Selected accident analysis for new accident management conception

 

37

 

IV&V (independent verification and validation of SW)

 

Independent verification of correctness of SW reactor accident protections and safety/protection systems

 

38

 

Leak before break (LBB) assessment

 

Verification of the rate of assurance of primary section pipeline systems integrity (LOCA prevention)

 

39

 

Emergency operating procedures (EOP)

 

Symptom based oriented accident emergency procedures – accident prevention

 

40

 

Severe accident management guidelines (SAMG)

 

Logical continuity to EOP – accident consequences mitigation

 

41

 

Fire safety, cables, EPS

 

Implementation of non-combustible and non-fire-propagating cabling and electrical fire signalling systems (EPS) by Cerberus

 

42

 

Seismicity analysis

 

Elaboration of new seismic assessment (0.1 g) and floor response spectra for individual seismic buildings floors – seismic re-qualification

 

43

 

Documentation control system

 

Assurance of evidence documentation elaboration for selected facilities/equipment (solidity, serviceability, seismicity)

 

44

 

ISE (NPP information systems)

 

Implementation of computer information system

 

45

 

Accommodation of internal steam generators in-fittings (PG)

 

Accommodation in the supply point and PG separation (serviceability increase)

 

46

 

Supplementing of new level measurements in PG

 

Securing safety divisions sections

 

47

 

Polar bridge crane controlling system

 

Original controlling system Robotron (East Germany) replacement; it did not maintain fulfilment of required functions

 

48

 

Filtration station for emergency control room (ND)

 

HVAC systems filter adding maintains ND habitability even in accidental conditions

 

49

 

Unit control room HVAC systems accommodation (BD)

 

Maintenance of required control room habitability conditions for personnel (noise level, temperature, etc)

 

50

 

GERB dampers

 

Seismic requirements fulfilment

 

51

 

Supplementary drencher fire extinguishing systems for main circulation pumps

 

Supervisory body’s requirements fulfilment

 

52

 

Supplementary post-accident liquid RAO processing (liquidation) systems

 

Radioactive waste volume reduction (RAO)

 

53

 

Supplementary boron collection water systems and post-active water exchange separation systems

 

Radioactive waste volume reduction (RAO)

 

54

 

Asbestos sealing replacement

 

Replacement by Teflon maintains higher serviceability of the technological equipment

 

55

 

New exchangers of active accident systems

 

Low quality of original exchangers design

 

56

 

Supplementary of pressuriser relief valve

 

Avoiding number of actions of the pressuriser main safety valves

 

57

 

Supplementary fast-speed valves on steam generator steam piping

 

Protection of important and expensive component

 

58

 

Main circulation pumps modernisation

 

Maintenance of required flow through active zone, impeller reinforcement, rotor balancing, etc

 

59

 

High-activity RAO organised deposition

 

Changing of original radioactive waste deposition concept (RAO)

 

60

 

Freon replacement

 

Chilling station reconstruction by using absorption units

 

Appendix 3. Temelin safety improvement programme.

           
 

No.

Technical Description

 

Start;End

 

Notes

 

1

PSA level 1 upgrade

 

09/1999;
08/2000

 

Internal event "shut down" in 08/2000 and external (fire, floods, etc) in 12/2000

 

2

PSA level 2 upgrade

 

03/2001;
09/2001

 

 

 

3

Safety monitor (SM)

 

11/1999;
12/2001

 

SM trial network operation in 11/1999 with existing models, gradual upgrade of SM models – upon PSA level 1 models upgrade

 

4

SAMG (severe accident management guidelines)

 

01/2000;
02/2001

 

 

 

5

Installation of restrictors in room A820 and in the hermetic zone

 

1999;
2000

 

 

 

6

Information system of the NPP modules:

-documentation

-management

-technical change

-management

 

1999;
2000

 

Documentation management module has already been in a trial operation, technical change management module will be set into operation in 2000

 

7

Fuel management:

- PIIP extension to further campaigns;

 

- PIIP methods improvement;

- Transition to developed alloys in PS construction;

- Fluency decrease on TNR

 

07/2004;
as required

04/2002;
as required
Depends on operational results

07/2001;
07/2004

 

Concerns implementation of selected items of post irradiation inspection programme (PIIP) in the frame of SUJB campaign requirements

Application of improved methods within PIIP

ZIRLO, E635, and conditions for PE and PS load bearing elements

TNR residual service life increase resulting in safety enhancement for the plant’s entire service life period

 

8

Core control:

- Transition to DMM version of AZ Beacon condition monitoring;

- Adaptation of developed calibration method ex-core/in-core;

- Implementation of fuel state monitoring program and methodology

 

Approx. 2004
Approx. 2003
1989;
2005

 

DMM version monitors DNBR directly. Transition is connected with safety analysis re-evaluation

Accuracy enhancement and calibration simplification resulting in safety enhancement

Variant of NPP DU program; development started, consistence with high degree fuel burn-up program

 

9

Safety analysis:

- Regular re-evaluation of accuracy codes for accuracy prediction enhancement;

- Application of improved methods during regular safety analyses re-evaluation;

-Technology transfer for selected safety analyses;

-Implementation of fuel rods analysis program and improved methods for high burn-up conditions

 

03/2000;
2030

2001;
2030

1999;
2001

1989;
2005

 

Explicit formulation of margins

 

Projection of current reserves and operational experience into selected limits for NPP operation

Approved by Investment Commission within fuel contract

Development has started and continues; will be as overall CEZ Thermomech code

 

10

EIA (updating of elaborated Environmental Impact Assessment studies)

 

11/1999;
11/2000

 

Processing of Environmental Impact Assessment studies according to CR Law No. 244/1992 Coll. with regard to changes applied in the building proceeding since 1 July 1992

 

11

Safety indicators evaluation implementation as per SUJB methodology

 

Trial operation initiation;
Continuous

 

In accordance with agreement with SUJB in "pre-trial" operation

 

12

Engineer (display) simulator

 

2000;
2002

 

Technical tool for management and optimising of operating procedures and personnel activities on BD

 

13

Physical protection – replacement of identification system

 

2003;

2005

 

Replacement of existing identification system for checking the vehicle authorisation to enter the NPP Temelin guarded area on the main entrance

 

14

Fire protection – reconstruction of CEZ Temelin Fire Rescue Corp controlling centre

 

1999;
2000

   
 

15

Fire protection – vehicle fleet

 

2001;
2005

 

Gradual replacement of vehicle fleet in company’s Fire Rescue Brigade will be implemented

 

16

Monitoring of temperature increase impact in Vltava River by Temelin discharge on water quality development in relation to its further utilisation

 

2000;
2003

 

The task encompasses monitoring and assessment of water quality changes at Orlík dam and tributary streams, their seasonal changes, monitoring of radioactive elements content in fish and dam bottom sediments bio-mass, monitoring of water macro-fyt as water environment bioindicators, changes in fish sort population and fish bio-mass, chlorophyll concentration and other hydro-biological characteristics monitoring

 

17

Monitoring and evaluation of underground water quality, monitoring of underground water level and evaluation of underground water regime (underground water movement, level fluctuation, flow direction changes)

 

2000;
see note

 

Assessed period of implementation – full scope minimum 10 years; limited scope (underground water quality) during the entire NPP life service

 

18

Analysis of agricultural activity initial state in Temelin site adjacent area

 

1993;
2000

    
 

19

Monitoring of Temelin operation impact on elements of environment

 

2000;
see note

 

Will be specified later

 

20

Monitoring of Temelin operation impact on health of population

 

2000;
see note

 

Will be specified later

 

21

Upgrade of nuclear materials registration programme

 

01/2000;
12/2000

   
 

22

ALARA centre equipment

 

01/2000;
12/2000

 

Replacement

 

23

SW means for defectoscopical controls planning and management

 

01/2000;
12/2000

 

Upgrading

 

24

HARSHAW TLD system equipment

 

01/2000;
12/2000

 

Equipment for measuring and evaluation of equivalent dose - replacement

 

25

Systematic approach to training (SAT) items implementation

 

1999;
2002

 

SAT in CEZ and subcontractor personnel preparedness

 

26

Simulator adaptation - replica for unit 1

 

2002;
2003

 

Adaptation to unit 1 commissioning results and to operation experiences after approx 1 year

 

27

Cable life service monitoring program

 

1999;

2000

 

Finishing of Temelin cable system regulated aging program

 

28

Design basis documentation reprocessing

 

2001;
2003

 

The project is in the preparation stage but conditions for its implementation were created in the second half of 1990s within extensive project changes. Contractual assurance – cooperation with project organisations is expected

 

29

Digitalisation of Temelin selected documentation

 

1994;
2002

 

Gradual audit of project document contents and other documents on equipment of all professions and their transition into graphical and database SW systems have gradually been carried out within this project. The project leads to substantial change in the information use and database assurance method for control of configuration

 

30

Geographical information system (GIS)

 

2002;
2004

 

In compliance with the CEZ overall concept GIS will be built up in Temelin as well. Data preparation for GIS in the field of detailed geodetic documents and data on land plots and buildings has continuously been carried out

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