Abstracts ASN Report 2019

ƫɵ 0(I ǣȇ zȒɮƺȅƫƺȸ א ׎׏ ژד ƏȇƳ ɀɖȵȵǼƺȅƺȇɎƺƳ ǣȇ xƏɵ א ׎׏ ژה ƏɎ the request of ASN. ASNwas unable to give its approval on the basis of the examination of the file as it stood. Further studies were necessary in order to rule on the suitability of this package for the waste it is designed to contain. EDF updated its file at Ɏǝƺ ƺȇƳ Ȓǔ א ׎׏ ژז ƏȇƳ ǣɎ ǣɀ ƬɖȸȸƺȇɎǼɵ ƫƺǣȇǕ ƺɴƏȅǣȇƺƳِ XȇɎƺȸ «ٮ ƺǕǣȒȇƏǼ áƏȸƺǝȒɖɀƺ Áǝƺ XȇɎƺȸ «ٮ ƺǕǣȒȇƏǼ áƏȸƺǝȒɖɀƺ ٢xX«٣ ٢ zX ژ ׏׎ א ٣ Ȓȇ Ɏǝƺ ɖǕƺɵ site operated by EDF is a storage facility for fresh nuclear fuel intended for the NPP fleet in service. The level of safety of the MIR was satisfactory in 2019. The periodic safety review of the facility is in progress, as are the stress tests requested by ASN following the Fukushima (ƏǣǣƬǝǣ ژ z¨¨ ƏƬƬǣƳƺȇɎِ ³ƏǣȇɎ ٮ ǼƫƏȇ ȇɖƬǼƺƏȸ ȵȒɯƺȸ ȵǼƏȇɎ The Saint-Alban NPP, operated by EDF in the Isère départe- ment on the municipalities of Saint-Alban-du-Rhône ƏȇƳ ³ƏǣȇɎ ٮ xƏɖȸǣƬƺ ٮ Ǽ ټ 0ɴǣǼً ג ׎ ژ Ǹȅ ɀȒɖɎǝ Ȓǔ nɵȒȇً ƬȒȅȵȸǣɀƺɀ ɎɯȒ ژ ׏ً ב ׎׎ ژ xáƺ ¨á«ɀ ƬȒȅȅǣɀɀǣȒȇƺƳ ǣȇ ׏ ژהזח ƏȇƳ ׏ וזח ِ «ƺƏƬɎȒȸ ژ ׏ ƬȒȇɀɎǣɎɖɎƺɀ zX ژ ׏׏ ژח ƏȇƳ ȸƺƏƬɎȒȸ אژ zX ژ ׏ א ׎ِ ASN considers that the performance of the Saint-Alban NPP with regard to nuclear safety, environmental protection and radiation protection is well positioned in comparison with the general standard of EDF plant performance. áǣɎǝ ȸƺǕƏȸƳ ɎȒ ȇɖƬǼƺƏȸ ɀƏǔƺɎɵً ³z ȇȒɎƺɀ ɎǝƏɎ ǣȇ א ׎׏ ژח Ɏǝƺ Saint-Alban NPPmaintained its good results, in keeping with the last few years. ASN notes in particular that the vigilance applied in the fight against fire outbreaks continued to bear fruit in 2019. Concerning maintenance, ASN considers that on the whole EDF successfully managed the maintenance outage of reactor 2, which was the only maintenance outage scheduled in 2019. This outage was marked by a technical difficulty in disconnecting two control rod clusters when opening the reactor vessel closure head, an unforeseen event that was managed satisfactorily. The site must be more rigorous in its monitoring of the sensitive areas of small-diameter pipes. ASN considers that the environmental protection performance of the Saint-Alban NPP is in line with the general assessment of the EDF plants. The organisation defined and implemented by EDF to meet the regulatory requirements concerning the monitoring of discharges and the environment seems satisfactory on the whole. With regard to worker radiation protection, ASN notes that the operational results were satisfactory. The results concerning health and safety at work are also satisfactory. ASN notes that no serious accidents occurred ƳɖȸǣȇǕ Ɏǝƺ ȸƺƏƬɎȒȸ ژא ȅƏǣȇɎƺȇƏȇƬƺ ȒɖɎƏǕƺِ (ɖȸǣȇǕ Ɏǝǣɀ ȒɖɎƏǕƺً ASN noted difficulties in organising the worksites and more specifically in taking into account the occupational risks at the work station in situations with tight schedules. !ȸɖƏɀ ٮ xƺɵɀɀƺ ȇɖƬǼƺƏȸ ȵȒɯƺȸ ȵǼƏȇɎ !ȒȅȅǣɀɀǣȒȇƺƳ ƫƺɎɯƺƺȇ ׏ ژגזח ƏȇƳ ׏ ژדזח ƏȇƳ ȒȵƺȸƏɎƺƳ ƫɵ EDF, the Cruas-Meysse NPP is situated in the Ardèche département on the municipalities of Cruas and Meysse ƏȇƳ ƬȒȅȵȸǣɀƺɀ ǔȒɖȸ ¨á«ɀ Ȓǔ ח ׎׎ ژ xáƺ ƺƏƬǝِ «ƺƏƬɎȒȸɀ ׏ ژ ƏȇƳ ژא ƬȒȇɀɎǣɎɖɎƺ zX ژ ׏׏׏ ژ ƏȇƳ ȸƺƏƬɎȒȸɀ ژב ƏȇƳ ژג ƬȒȇɀɎǣɎɖɎƺ zX ژ ׏׏ א ِ ASN considers that the performance of the Cruas-Meysse NPP is on the whole in line with the general assessment of EDF in the areas of nuclear safety and radiation protection. The site’s performance in environmental protection and waste management, however, is below average. With regard to nuclear safety, ASN considers that the Cruas-Meysse NPP is maintaining its level of performance. ³z ȇȒɎƺɀ ǣȇ ȵƏȸɎǣƬɖǼƏȸ ɎǝƏɎ Ɏǝƺ ɯȒȸǸ ɀɎƏȸɎƺƳ ǣȇ א ׎׏ ژז Ȓȇ Ɏǝƺ management of deviations is bearing fruit. ASN considers that the action plan implemented by EDF meets the requirements and expects the results in this area to be consolidated in 2020. Progress has also beenmade in the prevention of reactor trips. Áǝƺ ɵƺƏȸ א ׎׏ ژח ɯƏɀ ƏǼɀȒ ȅƏȸǸƺƳ ƫɵ Ɏǝƺ ȒƬƬɖȸȸƺȇƬƺ Ȓǔ Əȇ ƺƏȸɎǝȷɖƏǸƺ Ȓȇ ׏׏ ژ zȒɮƺȅƫƺȸ א ׎׏ ژח Ȓȇ Ɏǝƺ ȅɖȇǣƬǣȵƏǼǣɎɵ Ȓǔ Teil in the Ardèche département (see Notable events ). The tremors recorded by the site’s acceleration measurement system reached what are referred to as “inspection” thresholds. Reaching these thresholds led EDF to shut down reactors 2, ژב ƏȇƳ ٫ژג ɯǝǣƬǝ ɯƺȸƺ ǣȇ ɀƺȸɮǣƬƺ٫ ǣȇ ȒȸƳƺȸ ɎȒ ȵƺȸǔȒȸȅ ǣȇɀȵƺƬɎǣȒȇɀ and tests to check that the equipment and facilities had not suffered any damage. The investigation programme and its results were submitted to ASN, which authorised their return to service. The retrospective analysis of the acceleration values recorded on the day of the earthquake shows that they were significantly below the acceleration values taken into account in the design of the nuclear power plant. In the area of maintenance and management of the works relating to the reactor outages, ASN considers that EDF has made progress in the quality of outage preparation and the handling of unforeseen events that occur during the outages. In the area of radiation protection, ASN takes positive note of the steps taken by the licensee, although radiological cleanliness and control of the contamination risk during reactor outages must be further improved. With regard to protection of the environment, ASN has again noted shortcomings in waste management. In effect, despite the actions taken in this area in response to the requests issued ASN Report on the state of nuclear safety and radiation protection in France in 2019 35 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION Èà0«Jz0 «ٳ Rˆz0 ٳ n¨0³