Lifetime Extension

Lifetime extension of Ukrainian NPPs after they reach the end of their original design life is one of priority tasks for SE NNEGC Energoatom, which is Ukrainian NPP operator.  

NPP lifetime is extended beyond the original design life for the period from 10 to 20 years and the extended period is established for each specific case based on periodic safety review results.

In 2015, Energoatom took the decision to start preparations for lifetime extension of Khmelnitsky 1 (Kh-1).

Lifetime Extension of Ukrainian NPPs
(data are provided as of January 2017)

 Power Unit №
Electrical Capacity, MWReactor Model
Commissioning Date
End of Original Design Life
Status of Lifetime Extension Activities
Rivne NPP 1 420 В-213 22.12.1980 22.12.2010Operation period extended to 22.12.2030
 2 415 В-213 22.12.198122.12.2011
Operation period extended to 22.12.2031
 3 1000 В-320 21.12.198611.12.2017
 In progress
 4 1000 В-320 10.10.2004 07.06.2035
 Planned
South Ukraine NPP 1 1000 В-302 31.12.198202.12.2013
Operation period extended to 22.12.2031
 2 1000 В-338 09.01.198512.05.2015
Operation period extended to 31.12.2025
 3 1000 В-320 20.09.1989
10.02.2020
In progress
Zaporizhzhya NPP 1 1000 В-320 10.12.198423.12.2015
Operation period extended to 23.12.2025
 2 1000 В-320 22.07.198519.02.2015
 Operation period extended to 19.02.2025
 3 1000 В-320 10.12.198605.03.2017
 In progress
 4 1000В-320 18.12.198704.04.2018
In progress
 5 1000В-320 14.08.198927.05.2020
Planned
 6 1000В-320 19.10.199521.10.2026
Planned
Khmelnitsky NPP 1 1000В-320 22.12.198713.12.2018
In progress
 2 1000В-320 07.08.200407.09.2035
Planned

Purpose of the Project
To justify the possibility to extend Kh-1 lifetime for at least 10 year period.

Project Description
The project for Kh-1 lifetime extension activities is described in two related documents:
•    Licensing Plan for Kh-1 Long-Term Operation (1.NR.0700.PN-16);
•    Programme for Kh-1 Preparation for Long-Term Operation (1.NR.7947.PM-16).

These documents define the complete list of measures agreed with the State Nuclear Regulatory Inspectorate of Ukraine, which need to be implemented within Kh-1 preparation for long-term operation and their deadlines.

Measures included into the Programme for Kh-1 Preparation for Long-Term Operation (LTO)

LTO engineering measures include:
1)    Assessment of technical condition of structures and components
2)    Development of Periodic Safety Review Report
3)    Measures related to public relations and compliance with Espoo Convention requirements
4)    Measures to mitigate ageing degradation taken from ageing management programmes
5)    Measures to fix (or compensate) deviations from nuclear and radiation standards

LTO capital measures include:
1)    Safety improvement measures
2)    Measures to implement directions issued by regulatory/surveillance authorities
3)    Equipment qualification measures
4)    Seismic resistance measures
5)    Radioactive waste management measures
 
Brief General Plan for Kh-1 Lifetime Extension Activities

Project Implementation
   
Regulations for Kh-1 Preparation for LTO were developed and put into force at Khmelnitsky NPP.

The Regulations were developed with the purpose to:
•    Establish general requirements to organization and procedure for Kh-1 preparation for LTO;
•    Establish requirements to procedure for implementing technical and administrative measures to justify possibility for LTO of Kh-1 equipment, buildings, and systems.
Khmelnitsky 1 LTO Headquarters were established.

Operating Headquarters have the functions to:
•    Coordinate KhNPP departments in implementation of LTO schedules;
•    Organize and monitor timely implementation of LTO measures, including safety upgrade measures;
•    Organize the development of corrective actions for fixing issues related to fulfillment of plans and schedules, organize and monitor their implementation;
•    Organize operating communications among all LTO participants;
•    Manage Kh-1 preparation for LTO,
•    Monitor timely financing of LTO activities.

 
Organizational Chart for Kh-1 LTO Project Management 

LTO Project Implementation Status   
Currently at Kh-1 the following measures:

Have been fulfilled:

 №
Measure Description
 Completion Year
 1Assessment of technical condition and life extension for Kh-1 power transformers, including Main Transformer and Auxiliary Transformers 2013
 2Assessment of technical condition and life extension for Turbine Facility 2015
 3Assessment of technical condition and life extension for Automated Radiation Monitoring System 2016
 4Assessment of technical condition and reassignment of operation life for KhNPP underground service water pipelines (VC, VB, VV systems) 2016

Are in progress:

 №
Measure Description
Estimated Completion Period Notes
 1CCSUP implementation Until 2018As per CCSUP schedule in the scope applicable for LTO Programme
 2Measures to fix deviations from applicable regulations Until 2018As per specific schedule included in LTO Programme
 3Equipment replacement within LTO Project Until 2018As per specific schedule
 4Assessment of technical condition and life extension for Kh-1 Reactor Facility Until 2018This work was divided into 5 parts by Energoatom’s management decision. Tender has been announced and will be held in the 1st quarter of 2017
 5Qualification of Kh-1 components Until 2017
Within CCSUP measures 10101 and 18101 under the contract with Ukraine’s State Scientific and Engineering Center for Control and Emergency Response Systems (SSEC SERS)
 6Assessment of technical condition and life extension for pipelines of Kh-1 Essential Service Water System 2015-2017Works completed. LTO decisions underwent regulatory expert review. Comments are being fixed
 7Assessment of technical condition and life extension for buildings and structures that contain safety related systems 2015-2017Works completed. Deliverables sent to the regulatory authority for approval. Expert review comments are being fixed
 8Package of measures for assessment of technical condition and life extension/reassignment for vessels, filters, heat exchangers of safety related systems in Kh-1 Reactor Building 2017- 2018Tender has been announced and will be held in the 1st quarter of 2017
 9Technical examination of shunt reactors with life extension purpose 2016-2017Under implementation phase
 10Periodic Safety Review to justify Kh-1 life extension 2017-2019Tender has been announced and will be held in the 1st quarter of 2017
 11Package of measures for assessment of technical condition and life extension/reassignment for pipelines with supports and hangers of safety related systems in Kh-1 Reactor Building 2017-2018 Торги по выбору исполнителя работ объявлены и будут проведены в 1 квартале 2017 года
 12Package of measures for assessment of technical condition and life extension/reassignment for pipelines in Kh-1 Turbine Building 2017-2019Tender has been announced and will be held in the 1st quarter of 2017
 13 Life extension of mechanical equipment based on major overhaul resultsAnnually as per the schedule Current life extension (please see information below)

Current Life Extension / Replacement of Equipment

Based on technical examination results and maintenance works performed in 2016, life was extended for 39848 items of equipment, and 294 decisions were prepared. Please see more details in the table below:

Equipment Description
Kh-1 and Shared Plant EquipmentKh-2
Items of EquipmentNumber of DecisionsItems of EquipmentNumber of Decisions
Data Control Systems 2562 26 6070 30
Electrical Equipment 22256 29 57 8
Mechanical Equipment 6939 145 1964 56
 Total 31757 200 8091 94

In 2016, 294 life extension decisions were developed, which is 19% more if compared with 2015 (238 decisions).

In 2016, 2875 items of equipment were replaced according to the plan due to the end of their operation life and safety upgrade. Please see more details in the table below:
Equipment Description
 Энергоблок №1, ед. оборудования
 Энергоблок №2, ед. оборудования
Data Control Systems 22
(sensors TXA-1590, BDPЗ-0100)
2818
(modules of engineered features cabinets BUZ-D, BFS-D, BPN1-D, BPN2-D, BUD-D, BSU-D, BAR1-D, BFK1-D, BFK2-D, BSI-D, BLP1-D, BLP2-D, BLV1-D, BLV2-D, BLV3-D, BPU-D, BPK-D, BRP-D, BGR-D;
sensor TSP-1390)
Electrical Equipment 1
(BTEN90/380)
30
(BTEN90/380, Е842)
Mechanical Equipment 4
 (NOM-K-0026.250. 025-02 A-E, MEO-630/25-0,25U-92KA, KЗ43029-025, L44082-050)
 -
  Total 27 2848