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for the period January 25 through February
This issue of the Activity Report includes a special summary of a risk assessment completed recently for Chornobyl Unit 3.
Balakovo Trainers Finalize Pilot Course. During the week of February 3, Balakovo NPP staff worked with a team from Sonalysts, Inc. to finalize a pilot training course for radiation protection technicians. This course will be implemented at the plant starting on February 10. (Sonja Haber, BNL, 516-344-3575)
VNIIAES Presents Seminar. During the week of January 27, VNIIAES representatives presented a five-day seminar on emergency operating instructions (EOIs). The seminar, held at Balakovo NPP, consisted of presentations on seven basic elements of EOI development and implementation. In attendance were members of NPP management, operations, training, and procedures development organizations. A Gidropress representative also attended. (Kent Faris, PNNL, 509-372-4068)
Balakovo Analytical Simulator. During the week of January 20, U.S. technical staff held discussions with contractor GSE Power Systems, Inc. (formerly S3 Technologies, Inc.) regarding status of the analytical simulator for the Balakovo NPP training center. The group decided on a strategy for continuing efforts to acquire the simulator. The simulator to be obtained will be based upon the GSE proposal of November 1996. GSE will provide, one month after contract award, a set of requirements for the simulator. The firm also will present a complete list of any expected differences between the requirements of the original Balakovo simulator specification and the simulator that will be provided. (Peter Kohut, BNL, 516-344-4982)
Specifications Finalized, Contracts Signed, for Novovoronezh Safety Parameter Display System Work. During meetings in Moscow and at Novovoronezh NPP, specifications for the Novovoronezh Unit 3 safety parameter display system were finalized. U.S. vendor Science Applications International Corporation (SAIC) signed a contract with ConSyst, the Russian design organization that will develop the system displays and software. Novovoronezh staff are characterizing the input signals to be monitored by the new display system. SAIC is developing a plan to install hardware for the system during a plant outage scheduled to begin in September 1997. A VVER-440/230 safety parameter display system for Novovoronezh Unit 4 will be installed in May 1998. (Rich Denning, PNNL, 614-424-7412)
Circuit Breaker Technology Transfer Explored. On January 22 and 23, Bechtel National and U.S. team representatives met in Moscow with representatives of Rosenergoatom and a number of Russian manufacturing firms to discuss technology transfer for circuit breaker replacement. Through a survey of plant problems in 1996, Rosenergoatom had identified 6-kilovolt and 400-volt circuit breakers as a major safety concern. Bechtel National will discuss the Russian circuit breaker problems with U.S. manufacturers to identify opportunities for technology transfer to host countries. (Rich Denning, PNNL, 614-424-7412)
Leningrad Probabilistic Safety Assessment Working Group Meets. The working group for the Leningrad NPP probabilistic safety assessment met at the Leningrad plant January 20 through 22. Representatives of ENTEK, VNIPIET, ES-Konsult (Sweden), Atomic Energy Authority Technologies (Great Britain), and U.S. participants joined Leningrad plant officials for the meeting. Major actions included reviewing the design of the Leningrad plant, coordinating tasks associated with the probabilistic safety assessment with those of the deterministic safety assessment, and preparing for the March 11 project steering committee meeting in Washington, D.C. The working group concluded that the probabilistic safety assessment activities are on schedule. However, current delays in construction at the Leningrad plant represent a potential source of difficulty in maintaining the assessment schedule. (Sam McKay, PNNL, 509-372-4059)
Finnish Regulator Discusses Interest in Managing External Review of Leningrad Safety Analyses. On January 24, a member of the U.S. team met in Helsinki with representatives of STUK, the Finnish regulator, to discuss scope and level of effort required for an external review of the Leningrad NPP probabilistic safety analysis. STUK has expressed an interest in managing the external review. Participants included representatives from ES-Konsult (Sweden), STUK, and Gosatomnadzor. STUK representatives presented a comprehensive plan for conducting the external review of the probabilistic safety analysis. However, they expressed a desire for assistance from Gesellschaft fur Anlagen und Reaktorsicherheit (GRS) mbH (a German nuclear safety firm) with the review of the deterministic safety analysis. Meeting participants agreed that STUK would contact GRS within two weeks concerning the firm's interest and potential involvement. (Sam McKay, PNNL, 509-372-4059)
Khmelnytskyy Trainers Implement Training Course. A team from General Physics Corporation worked with training staff from Khmelnytskyy NPP to finalize and implement the pilot course for chemical operators. During the week of January 27, the Khmelnytskyy trainers received additional instructor skills training and practiced teaching course material. During the week of February 3, the Khmelnytskyy trainers presented the pilot course to chemical operators from the plant. (Sonja Haber, BNL, 516-344-3575)
Training Program Development Continues at Chornobyl. From January 27 through February 7, General Physics Corporation and Sonalysts, Inc. worked with the Chornobyl NPP training development group on development of the Control Room Reactor Operator and Radiation Protection Technician training programs. These working sessions focused on the design of training programs. (Sonja Haber, BNL, 516-344-3575)
Progress Made in Safety Parameter Display System Development for VVER-1000 Reactors. On January 27 and 28, Burns & Roe staff and U.S. team representatives met in Kyiv with staff of Derzhkomatom, Khmelnytskyy and Zaporizhzhya NPPs, and the State Scientific and Engineering Center for Control Systems and Emergency Response. The center will coordinate efforts in the project within Ukraine, as well as develop software and display formats. Plant-specific information needed for developing preliminary bid specifications was determined. The group developed a schedule to complete installation of the safety parameter display systems at Khmelnytskyy Unit 1 and Zaporizhzhya Unit 5 in May 1998. (Rich Denning, PNNL, 614-424-7412)
Chornobyl Center Completes Risk Assessment. The Chornobyl Center for Nuclear Safety, Radioactive Waste and Radioecology in Slavutych recently completed a review of the risk of a serious accident at the operating Chornobyl Unit 3 reactor if the damaged structures of the adjacent Unit 4 reactor were to collapse. The assessment marks the first project completed for the United States by the Center. The United States supported Ukraine in establishing the Center in 1996. A three-page summary of that assessment is attached at the end of this Activity Report. (Roger Anderson, PNNL, 206-528-3300)
Central and Eastern Europe
Lithuania: Ignalina EOI Development Group Assesses Progress. The status of emergency operating instruction development for Ignalina NPP was reviewed on January 27 through 29. Project participants meeting in Stockholm, Sweden, for the review included representatives from ENTEK, Ignalina NPP, Sweden, and the United States. The latter two countries are working cooperatively with the Ignalina plant in the development of EOIs based on U.S. methodologies and on operational insight provided by the Ignalina NPP probabilistic safety assessment. Participants discussed development issues, project status, and future planning. ENTEK provided a status report on its analysis activities, noting that calculation work in support of the Ignalina EOIs is scheduled for completion in August. Staff of Ignalina expressed concern regarding the fact that the Ignalina safety analysis report officially documents the plant's EOIs as a deficiency. The mid-1998 date scheduled for implementing the instructions at Ignalina may require reassessment based on the plant's response to the identified deficiency. (Sam McKay, PNNL, 509-372-4059)
Russia, Ukraine To Perform Safe Shutdown Analyses for Fire Hazards. The reactor core protection evaluation guidelines for fires at VVER and RBMK nuclear power plants, completed in November 1996, will be used in performing safe shutdown studies at Smolensk (Russia) and Zaporizhzhya (Ukraine) NPPs. On January 21, U.S. specialists met in Moscow with staff of Rosenergoatom and VNIIAES and agreed on the Russian scope of work for the Smolensk study. On February 4 in Washington, D.C., U.S. team members discussed the Zaporizhzhya analysis with a representative of Derzhkomatom. Agreement on these studies grew out of host country responses to workshops held in the United States in November and December 1996. Nuclear industry executives (including regulatory and utility representatives) from Russia, Ukraine, and Armenia attended those workshops. Training sessions for host country staff who will implement the guidelines were completed in the United States during the past week. (Rich Denning, PNNL, 614-424-7412)
"*" indicates the event is a new item or has been changed from the last report.
February 9-11 --
*February 10-14 -- Argonne, Illinois, USA.
February 10-12 -- Vilnius,
February 10-14 -- Balakovo NPP,
10-13 -- St. Petersburg, Russia.
*February 10-28 -- Darmstadt, Germany.
*February 11-15 -- Bratislava, Slovakia.
February 15-March 8 -- Columbia, Maryland, USA.
February 17-21 --
Moscow, Russia; and Kyiv, Ukraine.
February 17-28 -- Kozloduy NPP, Bulgaria.
February 17-28 -- Waterford,
20-21 -- Kyiv, Ukraine.
February 22-28 -- Moscow, Russia.
February 22-March 1 -- Washington, D.C., and
Richland, Washington, USA.
February 23-March 1 -- Moscow, Russia
* Date Change February 24-26 -- London, England.
February 24-27 -- Moscow, Russia.
*February 24-28 --
*Date Changed February 24-28 -- Moscow, Russia.
February 24-March 7 -- Zaporizhzhya NPP, Ukraine.
February 24-March 7 --
Kursk NPP, Russia.
March 1-7 -- Vermont Yankee NPP, Vernon, Vermont,
*March 3-14 -- Smolensk NPP, Russia.
*March 3-14 -- Smolensk Training Center, Russia.
*March 10-March 14 -- Upton, New York, USA.
March 10-21 -- Chornobyl NPP,
March 15-April 12 --
Aiken, South Carolina, USA.
March 17-22 -- Mohovce NPP,
*March 17-28 -- Beloyarsk NPP, Russia.
March 17-28 -- Khmelnytskyy NPP, Ukraine.
14-25 -- Waterford, Connecticut, USA.
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