Abstracts ASN Report 2019

ƺǼǼƺɮǣǼǼƺ ٮ ɀɖȸ ٮ nȒǣȸƺ ȇɖƬǼƺƏȸ ȵȒɯƺȸ ȵǼƏȇɎ The Belleville-sur-Loire NPP is situated in the north-east of the Cher département , on the left bank of the river Loire, at the crossroads of four départements (Cher, Nièvre, Yonne and Loiret) and two administrative regions (Bourgogne-Franche-Comté and Centre-Val de Loire). The NPP comprises two reactors of 1,300 MWe, which were commissioned in 1987 and 1988 and constitute BNIs 127 and 128 respectively. ASN considers that the performance of the Belleville- ɀɖȸ ٮ nȒǣȸƺ ژ z¨¨ ǣɀ ǣȇ Ǽǣȇƺ ɯǣɎǝ Ɏǝƺ ǕƺȇƺȸƏǼ ƏɀɀƺɀɀȅƺȇɎ Ȓǔ 0(I in the areas of radiation protection, the environment and nuclear safety. The operational control of the installation has significantly improved compared with the preceding years, even if it is still below the level expected. The licensee has identified the few weaknesses that persist and is continuing to implement its action plan. More specifically, ASN considers that the licensee must make further progress in communication within and between the operational control teams, in the robust analysis of periodic test results and inmonitoring the reactor parameters. By way of example, EDF reported a significant event rated ǼƺɮƺǼ ژ ׏ Ȓȇ Ɏǝƺ Xz0³ ɀƬƏǼƺ Ƴɖƺ ɎȒ ɎɯȒ ƺɴƬɖȸɀǣȒȇɀ ǔȸȒȅ Ɏǝƺ operating envelope authorised by the installation’s safety rules. In addition to this, significant improvements can be made in fire risk management. In the area of radiation protection, ASN finds that the situation is satisfactory and has remained so for several years. The service competent in radiation protection has made improvements in the traceability and monitoring of actions to optimise the dosimetry of worksites where there are major radiation risks. The environmental performance of the Belleville-sur-Loire NPP is satisfactory, even though the licensee must be particularly attentive to the management of on-site transport of hazardous materials, an area in which improvements are required in 2020. With regard to labour inspection, inspections were carried out in the areas of health and safety at work, particularly during the maintenance outages. Inspections were carried out in particular in relation to the sealing work on the reactor containment wall. The observations addressed to the NPP and the subcontractor companies necessitated corrective actions which were checked during performance of the services. In addition, regular meetings took place with the bodies representing the personnel at meetings of the Committee for Health, Safety andWorking Conditions (CHSCT) and when specifically requested by the personnel representatives, on subjects essentially addressing application of the Labour Laws. (Əȅȵǣƺȸȸƺ ٮ ƺȇ ٮ ɖȸǼɵ ȇɖƬǼƺƏȸ ȵȒɯƺȸ ȵǼƏȇɎ The Dampierre-en-Burly NPP is situated on the right bank of the Loire river, in the Loiret département , about 10 km downstream of the town of Gien and 45 km upstream of Orléans. It comprises four 900 MWe nuclear reactors which were commissioned in 1980 and 1981. Reactors 1 ƏȇƳ א ƬȒȇɀɎǣɎɖɎƺ zX גזژ ً ƏȇƳ ȸƺƏƬɎȒȸɀ ב ƏȇƳ ג zX דזژ ِ Áǝƺ site accommodates one of the regional bases of the FARN (Nuclear Rapid Intervention Force), the special emergency response force created by EDF in 2011 following the Fukushima Daiichi NPP accident. Its role is to intervene in pre-accident or accident situations, on any NPP in France, by providing additional human resources and emergency equipment. ASN considers that the nuclear safety performance of the Dampierre-en-Burly NPP is in line with the general assessment of the EDF plants. This being said, its environmental and radiation protection performance are below the national average. These assessments are exactly the same as those formulated for the year 2018. With regard to safety, the results are on the whole satisfactory, with a good level of involvement of the independent safety organisation and the operational control teams in the significant events analyses. ASN does nevertheless observe an upsurge in organisational weaknesses between the operational control teams and the other services of the NPP which have been the cause of several significant events. Weaknesses in the monitoring actions in the control room are still observed regularly. ASN moreover again noted incomplete control of the fire risk on the site. With regard to the maintenance of the facilities, ASN considers that the monitoring of outside contractors, application of nǣǔɎǣȇǕ ɎǣǕǝɎƺȇƺƳ ȅȒȇǣɎȒȸǣȇǕ In the light of the results of the tightened monitoring of the Belleville-sur-Loire NPP decided in September 2017, ASN observes that the condition of the installations and the practices with regard to safety have, broadly speaking, significantly improved. After the progress noted by ASN in 2018, the specific inspections carried out in 2019 revealed an improvement in the site’s performance in the areas of deviation management and operating control of the installations. Consequently, in January 2020 ASN decided to lift the tightened monitoring of the Belleville-sur-Loire NPP. ASN nevertheless insists on the need for the site to maintain this level of rigour so that the improvements observed since 2017 are sustained over the long term. ASN Report on the state of nuclear safety and radiation protection in France in 2019 47 REGIONAL OVERVIEWOF NUCLEAR SAFETY AND RADIATION PROTECTION !0zÁ«0 ٳ à n (0 n…X«0