24. 4. 2007
CEZ has today delivered „Information on operating events at Temelin Nuclear Power Plant in the years 2002-2007“
CEZ Power Company has today presented to the Prime Minister of the Czech Republic the official Information on operating events at Temelin Nuclear Power Plant. This Information was prepared following the requirement which resulted from discussion of the Minister of Industry and Trade Martin Riman, Minister of Environment Martin Bursik, Chairwoman of the State Office for Nuclear Safety Dana Drabova and representatives of CEZ taking place on 17 March, 2007.Since the initiation of trial operation in 2002, there has been no operating event which might be rated as an incident or accident by the international INES scale at Temelin. The Information describes 166 operating events classified as 0 – deviation and 1 – anomaly.
Press Officer, CEZ Group
Definition of INES 0 and 1 events significance according to the User´s Manual of the International Atomic Energy Agency in Vienna: INES 0 – deviations where operational limits and conditions are not exceeded and which are properly managed in accordance with adequate procedures. Examples include: a single random failure in a redundant system discovered during periodic inspections or tests, a planned reactor trip proceeding normally, spurious initiation of protection systems without significant consequences, leakages within the operational limits, minor spreads of contamination within controlled areas without wider implications for safety culture.INES 1 - anomaly beyond the authorized regime but with significant defence in depth remaining. This may be due to equipment failure, human error or procedural inadequacies and may occur in any area of nuclear power plant's operation. Examples include: breaches of technical specifications or transport regulations, incidents without direct safety consequences that reveal inadequacies in the organisational system or safety culture, minor defects in pipework beyond the expectations of the surveillance programme.