Application of integrated risk for making decision on nuclear and radiation safety management

«Radiation and Risk», 2015, vol. 24, No. 4, pp.87-97

Authors

Khamaza A.A. – Director of Scientific and Engineering Centre for Nuclear and Radiation Safety. Scientific and Engineering Centre for Nuclear and Radiation Safety Federal Environmental, Industrial and Nuclear Supervision Service, Moscow, Russia. Contacts: 2/8, bld. 5 Malaya Krasnoselskaya st., Moscow, Russia, 634028. Tel.: 8-499-264-00-03, e-mail: This email address is being protected from spambots. You need JavaScript enabled to view it. .

Abstract

The article discusses framework for development of nuclear and radiation safety measures adequate to a potential danger of nuclear power plants. The method for integrating deterministic and probabilistic estimates, is widely used for these purposes. The article examines sources of information, which must be used for making integrated risk based informed decision. The following can be used as information sources: results of on-site inspection carried out by a regulatory agency, investigations of blackout in nuclear power plants, as well as information on operational safety, expert analysis of reliability substantiation, results of examining departures from valid standards and rules, exploiting international good practice in operation of nuclear and non-nuclear facilities and other relevant information. The article presents methods that could be used for processing various types of source information necessary for the estimating integrated risk, ranking the facilities according to the extent of their danger and final regulatory decision making.

Key words
nuclear power plants, safety management, deterministic approach, probabilistic approach, framework for integrated risk, safety issues, differentiation, potential danger.

References

1. Fundamental Safety Principles. Safety Fundamentals. № SF-1. Vienna, IAEA, 2007.

2. Federalny zakon № 170-FZ ot 21.11.1995 «Ob ispolzovanii atomnoy energii» [Federal law 21.11.1995, no. 170-FZ «Concerning the use of nuclear power»]. Moscow, 1995.

3. Convention on Nuclear Safety. Vienna, IAEA, 1994.
4. Postanovlenie Pravitelstva RF ot 29.03.2013 № 280 «O litsenzirovanii deyatelnosty v oblasty ispolzovaniy atomnoy energii» [Russian Federation Government resolution 29.03.2013 no. 280 «On licensing activities in the field of atomic energy use»]. Moscow, 2013.

5. Goals of regulatory work in nuclear safety. Paris, OECD/CNRA, 2008.

6. Bukrinskiy A.M. Opredelenie znachimosti rezultatov inspectsyi, osuschestvlyemykh personalom NRC, v processe reactornogo nadzora [The definition of significance of NRC personal inspections results in process of reactor oversight]. Yadernaya i radiatcionnaya bezopastnost – Nuclear and Radiation Safety, 2009, no. 3, pp. 7-14.

7. Polozhenie o poryadke rassledovaniya b ucheta narusheniy v rabote atomnykh stantsiy NP-004-08 [Provision on the procedure of investigation and accounting of operational occurrences at nuclear power plants NP-004-08]. Moscow, Federal Environmental, Industrial and Nuclear Supervision Service, 2008.

8. STO 1.1.1.04.001.0143-2009 «Standart organizatsii. Polozhenie o godovykh otchetakh po otcenke sostoyaniya bezopasnoy ekspluatatsii energoblokov atomnykh stantsiy» [STO 1.1.1.04.001.0143-2009 «The organization standard. Provision on annual reports on assessment of the condition of power units safe operation at nuclear power plants»]. Moscow, Rosenergoatom, 2009.

9. Administrativny reglament predostavleniya federalnoy sluzhboy po ecologicheskomu, tekhnologicheskomu i atomnomu nadzoru gosudarstvennoy uslugi po litsenzirovaniyu deyatelnosty v oblasty ispolzovaniya atomnoy energii (prikaz ot 08.10.2014 no. 453) [Administrative procedures for the public service of licensing activities in the field of atomic energy use to be provided by the Federal Environmental, Industrial and Nuclear Supervision Service (order 08.10.2014 no 453)]. Moscow, Federal Environmental, Industrial and Nuclear Supervision Service, 2014.

10. Rukovodstvo po bezopasnosty v oblasty ispolzovaniya atomnoy energii. Analiz nesootvetstviy bloka atomnoy stantsii trebovaniyam deystvuyustchikh normativnykh documentov. RB-028-04 [Safety guide in the area of atomic energy usage. The analysis of power unit mismatch to ongoing regulatory documents. RB-028-04]. Moscow, Federal Environmental, Industrial and Nuclear Supervision Service, 2004.

11. Safety Issues and their Ranking for WWER-1000/320 NPPs. IAEA-EBP-WWER-05. Vienna, IAEA, 1996.

12. Kratkiy otchet o rezultatakh dopolnitelnykh analizov zaschischennosti deystvuyuschikh rossiiskikh AES ot vneshnikh ekstrimalnykh vozdeistviy [Executive summary on results of additional analyses of a degree of protection of Russia’s operating NPPs with regard to external extreme impacts]. Yadernaya i radiatcionnaya bezopastnost – Nuclear and Radiation Safety, 2012, no. 1(63), pp. 7-9.

13. Lankin M.U., Khamaza A.A., Charafoutdinov R.B., Miroshnichenko M.I. O nekotorykh aspektakh obosnovaniya bezopasnosty atomnikh stantsyi (Uroki avarii na AES «Fukusima-Daichi» [About some as-pects of safety cases on nuclear power plants (The lesson learned from the accident at the “Fukushima Daiichi” nuclear plant)]. Yadernaya i radiatcionnaya bezopastnost – Nuclear and Radiation Safety, 2012, no. 1(63), pp. 40-48.

14. Report Activities in WENRA countries following the Recommendation regarding flaw indications found in Belgian reactors. WENRA, 2014.

15. A Framework for an Integrated Risk Informed Decision Making Process a Report by the International Nuclear Safety Group. INSAG-25. Vienna, IAEA, 2014.

16. Rukovodstvo po bezopasnosty pri ispolzovanii atomnoy energii «Otsenka tekuschego urovniay bezopas-nosty obektov ispolzovaniya atomnoy energii» RB-091-13 [Safety guide in the area of atomic energy usage. Assessment of the current level of safety for nuclear facilities RB-091-13]. Vienna, IAEA, 2014.

Full-text article (in Russian)