Summary Report for Conduct of Kozloduy NPP Stress Tests

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“Kozloduy NPP” PLC SUMMARY REPORT for Conduct of Kozloduy NPP Stress Tests Table 6.1-2: Types of training, exercises and participants Seq. No. Type of exercise Participants Frequency 1. General emergency exercises Emergency structures Once annually and remaining personnel 2. Separated emergency exercises Separate working groups and teams of Emergency structures Not rare than twice annually 3. Functional tests of tools for annunciation and information Services for maintenance and servicing Once per month Training, emergency exercises and general emergency training is held according to approved by the Executive Director schedule and to preliminary developed and approved program. Developed scenarios for Emergency exercises are used for conducting of such exercises with the Emergency teams. The purpose of exercises for actions at accident is to verify and maintain preparedness of the personnel to adequate actions at accident in «Kozloduy NPP» plc. During general emergency training the following is checked: · operative preparedness of emergency personnel to correct and precise actions at accident; · preparedness of MT and emergency personnel of the groups and teams to execute actual plan at accident situation; · rapid and precise actions, organization, coordination and interfaces of Emergency teams; · functioning of these systems for interfacing, annunciating and management during accident; · preparedness and possibility for timely evacuation of the personnel; · condition and operability of emergency technical means; · interfaces and coordination with the off-site organizations and departments; · functionality and applicability of developed personnel and public protection plan at possible accident at the NPP; · preparedness and capabilities of the NPP personnel for prompt orientation and actions at accident situation; · specific knowledge and skills of the personnel, their practical capabilities for actions at complicated accident situation. During separate emergency drills the following is checked: · operational preparedness of separate crews; 171/202
“Kozloduy NPP” PLC SUMMARY REPORT for Conduct of Kozloduy NPP Stress Tests · notification; · collection of the emergency team at the workplace according to Emergency Plan; review of the feasibility of various emergency plans. 6.1.2 Possibility for use of existing equipment 6.1.2.1 Measures ensuring usage of mobile devices (availability of such devices, time required for their delivery to the site and putting into operation) Mobile diesel-generator (MDG) is one of measures on design modernization intended to improve safety and has the purpose of redundancy of diesel-generators (DG) and providing for emergency power supply to "reliable power supply" busbars at common-cause failures in “Kozloduy NPP” PLC. Procedure has been developed on transportation and actuation of MDG to the busbars in premises of the pumps of steam generators emergency make-up system (SG EMS). The established success criteria are the time from conditioning of alarm on complete loss of power supply to the pump actuation less than 2 hours. Meeting the criteria is confirmed in the observation sheet of the emergency response exercise. Total reserve of fuel and oil of MDG ensures its uninterrupted operation at nominal power during 21 hours and 40 minutes. To energize only the pump of the system for alternative make-up of the SG, the reserve is sufficient for 60 hours. 6.1.2.2 Insurance and management of supply (fuel for diesel generators, water, etc.) On the maintained reserves of fuel and oil in accordance with normative requirements, emergency instructions and technical specification in Kozloduy NPP” ЕАД it is calculated that: · For units 5 and 6 - Emergency DGs - at operation of two emergency DGs (one per unit) total reserve of fuel and oil of emergency DGs is sufficient for more than 38 days. - Accumulator batteries (AB) – see par.5.1.1.2.2. Total reserve of fuel and oil of additional DGs ensures uninterrupted operation of each of them for more than 4 days. · For units 3 and 4 - Emergency DGs of units 3 and 4 - fuel and oil reserves for emergency DGs ensure their uninterrupted operation for more than 4 days. - Emergency DGs of additional system for SG emergency make-up (ASSGEM) - fuel and oil reserves for emergency DGs of ASSGEM ensure their uninterrupted operation during 5 days. 172/202
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