Abstracts ASN Report 2019

׫٫ ڲ ASN actions in the field of research facilities: a graded approach א ِ׏ Áǝƺ ǕȸƏƳƺƳ ƏȵȵȸȒƏƬǝ ƏƬƬȒȸƳǣȇǕ ɎȒ Ɏǝƺ ȸǣɀǸɀ ǣȇ Ɏǝƺ ǔƏƬǣǼǣɎǣƺɀ Ļĸ ׇ ŌņŇĸŀ ĴŃŃĿļĸņ Ňł ŀłŅĸ ŇĻĴŁ ĴĵłňŇ Ĵ ĻňŁķŅĸķ ĹĴĶļĿļŇļĸņ ļŁ ŅĴŁĶĸє Ļļņ ŌņŇĸŀ ĶłŁĶĸŅŁņ ʼnĴŅļłňņ ĹĴĶļĿļŇļĸņ ŊļŇĻ ŊļķĸĿŌ differing nuclear safety, radiation protection and environmental protection challenges: nuclear research or power reactors, radioactive waste storage or disposal facilities, fuel fabrication or reprocessing plants, laboratories, industrial ionisation facilities and so on. The safety principles applied to nuclear research or industrial facilities are similar to those adopted for nuclear power reactors and nuclear fuel cycle facilities, while taking account of their specificities with regard to risks and detrimental effects. ASN has implemented an approach that is proportional to the extent of the risks or drawbacks inherent in the facility. In this respect, ASN has divided the facilities it regulates into three ĶĴŇĸĺłŅļĸņё ĹŅłŀ ӄׇŇł ӆׇļŁ ķĸņĶĸŁķļŁĺ łŅķĸŅ łĹ ŇĻĸ ņĶĴĿĸ łĹ their risks and detrimental effects for the interests mentioned ļŁ ŅŇļĶĿĸ є ӈӌӆіӄׇłĹ ŇĻĸ ŁʼnļŅłŁŀĸŁŇ łķĸ Ҏ ŅĸņłĿňŇļłŁ ӅӃӄӈі іӃӈӅӆׇłĹ Ӆӌׇ ĸŃŇĸŀĵĸŅ ӅӃӄӈҏє Ļļņ ׇĶĿĴņņļĹļĶĴŇļłŁ enables the oversight of the facilities to be adapted and thus focused on those with the highest risks, in terms of the ļŁņŃĸĶŇļłŁņ ĴŁķ ŇĻĸ ĸŋĴŀļŁĴŇļłŁņ ĶĴŅŅļĸķ łňŇ ĵŌ є łŅ ĸŋĴŀŃĿĸё ŇĻĸ ŅĸņĸĴŅĶĻ ŅĸĴĶŇłŅņё ĶĴĿĿĸķ ĴŁķ ĴĵŅļё ĴŅĸ ŃĿĴĶĸķ ļŁ ĶĴŇĸĺłŅļĸņ ӄׇĴŁķ ӅׇŅĸņŃĸĶŇļʼnĸĿŌё ŊĻļĿĸ ŇĻĸ ŃĴŅŇļĶĿĸ ĴĶĶĸĿĸŅĴŇłŅё called Ganil, is placed in category 3. א ِ א Áǝƺ ȵƺȸǣȒƳǣƬ ɀƏǔƺɎɵ ȸƺɮǣƺɯɀ The Environment Code requires that the licensees carry out a periodic safety review of their facilities every ten years. This periodic safety review is designed to assess the status of the facility with respect to the applicable regulations and to update the assessment of the risks or detrimental effects inherent in the facility, notably taking into account the condition of the facility, acquired operating experience, changes in knowledge and the rules applicable to similar facilities. They are thus an opportunity for upgrades or improvements in fields in which the safety requirements have changed, in particular seismic resistance, protection against fire and confinement. To date, all the nuclear research and miscellaneous facilities have ňŁķĸŅ峣ĸ Ĵ ŃĸŅļłķļĶ ņĴĹĸŇŌ ŅĸʼnļĸŊє łŅ ĹĴĶļĿļŇļĸņ ŊĻļĶĻ ĻĴķ ŁłŇ ŌĸŇ ňŁķĸŅ峣ĸ Ĵ ĹļŅņŇ ŅĸʼnļĸŊё ŇĻĸ ĸĶŅĸĸ łĹ Ӆׇ łʼnĸŀĵĸŅׇӅӃӃӊ required that the licensees submit their first periodic safety review report no later than November 2017. ASN subsequently implemented an examination method commensurate with the issues in the facilities: some facilities require particular attention due to the risks they present, while for others presenting a lower level of risk, the extent of the inspections and examinations is adapted accordingly. The technical examination of all the periodic safety review reports will take several years, owing to the specific nature of each of the facilities concerned. Ō ӄׇ łʼnĸŀĵĸŅ ӅӃӄӊё ĻĴķ ĹłŅ ĸŋĴŀŃĿĸņ ĶĴŅŅļĸķ łňŇ ӄӉׇŃĸŅļłķļĶ ņĴĹĸŇŌ ŅĸʼnļĸŊņ ĴŁķ ŇŅĴŁņŀļŇŇĸķ ŇĻĸ ŅĸʼnļĸŊ ŅĸŃłŅŇņ to ASN. CEA also informed ASN that it wished to even out the workload involved in these reviews, in terms of its organisation and its resources, by bringing forward the submission of the periodic safety review reports for certain facilities in the coming decade. ASN is in favour of this approach. Ł ӅӃӄӌё ĶłŁŇļŁňĸķ ŊļŇĻ ļŇņ łŁіņļŇĸ ļŁņŃĸĶŇļłŁņё ŊĻļĶĻ ŊĸŅĸ ņŇĴŅŇĸķ ļŁ ӅӃӄӉׇĴŁķ ĴŅĸ ņŃĸĶļĹļĶĴĿĿŌ ķĸʼnłŇĸķ Ňł ŇĻĸ ŃĸŅļłķļĶ ņĴĹĸŇŌ review of the facilities. It finds that all the licensees have now better assimilated the problems relating to the review, thanks to the implementation on each site of a transverse organisation specifically devoted to this process. א ِ ב nƺɀɀȒȇɀ ǼƺƏȸȇƺƳ ǔȸȒȅ Ɏǝƺ IɖǸɖɀǝǣȅƏ (ژ ƏǣǣƬǝǣ ƏƬƬǣƳƺȇɎ Ł ŇĻĸ ŊĴľĸ łĹ ŇĻĸ ňľňņĻļŀĴ ĴļļĶĻļ ĴĶĶļķĸŁŇё initiated a stress tests approach for the nuclear facilities. The approach consists in assessing the safety margins in the facilities with regard to the loss of electrical power, or cooling, and with ŅĸĺĴŅķ Ňł ĸŋŇŅĸŀĸ ŁĴŇňŅĴĿ ĻĴōĴŅķņє In May 2011, ASN required that stress tests be carried out on the ņ ŊļŇĻ ŇĻĸ ĻļĺĻĸņŇ Ņļņľņ ļŁ ŇĻĸ ĿļĺĻŇ łĹ ŇĻĸ ňľňņĻļŀĴׇ ĴļļĶĻļ ĴĶĶļķĸŁŇ ҎĵĴŇĶĻ ӄҏє łŅ ŇĻĸ ņ Ҏ ĴņňŅĶĴё ņļŅļņ ĴŁķ ҏ ĴŁķ ŇĻĸ ļĺĻі Ŀňŋ ĸĴĶŇłŅ Ҏ ҏ ļŁ ĵĴŇĶĻ ӄё ĴŁķ ļŁ ŇĻĸ ĿļĺĻŇ łĹ ŇĻĸ ĶłŁĶĿňņļłŁņ łĹ ŇĻĸ ņŇŅĸņņ ŇĸņŇņё ļŁ ӅӃӄӅׇłŅķĸŅĸķ ŇĻĸ implementation of appropriate organisational and material measures, referred to as the “hardened safety core”. As at the ĸŁķ łĹ ӅӃӄӌё ĶłŁņļķĸŅņ ŇĻĴŇ ĺłłķ ŃŅłĺŅĸņņ ĻĴņ ĵĸĸŁ ŀĴķĸ in this work. It notably observes that the large-scale work on the ŅĸņĸĴŅĶĻ ŅĸĴĶŇłŅ ĻĴņ ĵĸĸŁ ņĴŇļņĹĴĶŇłŅļĿŌ ĹļŁĴĿļņĸķё ŁłŇĴĵĿŌ with the construction of new and robust emergency management premises, reinforcement of the tightness of the reactor building in the event of extreme flooding and the installation or modification of back-up systems to prevent loss of coolant risks. The stress tests were continued for a second group (batch 2) łĹ ӅӅׇĹĴĶļĿļŇļĸņ ŊļŇĻ ĿĸņņĸŅ ņĴĹĸŇŌ ļŀŃĿļĶĴŇļłŁņє Ļĸņĸ ļŁĶĿňķĸ the UPRA, CEA research facilities (Atalante, Cabri, LECA and Orphée) and ITER. The emergency management resources in the CEA centres in Cadarache, Marcoule and Saclay were reviewed under the second batch stress tests. In 2015, ASN ordered the implementation of new emergency management means, more particularly the construction or reinforcement of the “hardened safety core” emergency centres so that they could withstand extreme climatic conditions. It finds that these projects are behind schedule on all the CEA centres, for various reasons, and that the initial deadlines were not met. With regard to the Cadarache centre, ASN agreed to the request for postponement of construction of the emergency centre buildings, given that the main risk considered for the site is associated with the Jules łŅłŊļŇō ŅĸņĸĴŅĶĻ ŅĸĴĶŇłŅ Ҏ ҏё ĹłŅ ŊĻļĶĻ ĶłŀŀļņņļłŁļŁĺ ĻĴņ ĵĸĸŁ ķĸĿĴŌĸķє łŅ ŇĻĸ ĴĶĿĴŌ ĶĸŁŇŅĸё ņĸŅʼnĸķ ŊļŇĻ ĹłŅŀĴĿ ŁłŇļĶĸ łŁ Ӊׇ ĸŃŇĸŀĵĸŅ ӅӃӄӌׇŇł ņĸŁķ ļŇ ŇĻĸ ĹļĿĸ ĽňņŇļĹŌļŁĺ ŇĻĸ ķĸņļĺŁ ĴŁķ ņļōļŁĺ łĹ ŇĻĸ ĹňŇňŅĸ ĸŀĸŅĺĸŁĶŌ ŀĴŁĴĺĸŀĸŁŇ ĵňļĿķļŁĺņє Ļļņ ĹļĿĸ ŊĴņ ŅĸĶĸļʼnĸķ ļŁ ĸĶĸŀĵĸŅ ӅӃӄӌє ļŁĴĿĿŌё ĹłŅ ŇĻĸ ĴŅĶłňĿĸ centre, ASN is still waiting for additional data on the strength of the emergency management building which has now been built (containment, accessibility, operability, habitability, etc.). ļŁĴĿĿŌё łĹ ŇĻĸ ŇĻļŅŇŌ łŇĻĸŅ ĴĵłŅĴŇłŅļĸņё ĿĴŁŇņё ĸĶłŀŀļņņļłŁļŁĺ and Waste (LUDD) facilities with the lowest safety implications ҎĵĴŇĶĻ ӆҏё ļŁ ӅӃӄӆׇļņņňĸķ Ĵ ĵļŁķļŁĺ ŅĸńňļŅĸŀĸŁŇ łŁ ŇĻĸ facilities (Lefca, LECI, Poséidon, Magenta and STAR), the Ganil and the irradiators of the Ionisos and Steris groups, for a calendar for submission of the stress tests reports running until 2020. łŅ ŇĻĸņĸ ĹĴĶļĿļŇļĸņё ŇĻĸ ņŇŅĸņņ ŇĸņŇņ ŊļĿĿ ĵĸ ĸŋĴŀļŁĸķ Ĵņ ŃĴŅŇ łĹ Ĵ periodic safety review, as is currently the case for the irradiators of the Ionisos group. 328 ASN Report on the state of nuclear safety and radiation protection in France in 2019 ׏ ٲ א NUCLEAR RESEARCH AND MISCELLANEOUS INDUSTRIAL FACILITIES