Abstracts ASN Report 2019

The improvements identified for dealing with obsolescence are such as to guarantee satisfactory and lasting management of obsolescence. Ļĸ ŃŅłĺŅĴŀŀĸ łĹ ĴķķļŇļłŁĴĿ ļŁʼnĸņŇļĺĴŇļłŁņ ķĸĹļŁĸķ ĵŌ ĴŁķ the planned procedures for processing the results are deemed to be satisfactory. ASN however identified weaknesses in the processing of operating experience feedback, advance planning of the decisions to be taken, the time taken to process certain generic ageing assessment sheets and the assimilation by the NPPs of the demonstration of the suitability for continued operation in the summary dossier specific to each reactor. ļŁĴĿĿŌё Ĵ ņŀĴĿĿ ĴŀłňŁŇ łĹ ĴķķļŇļłŁĴĿ ŊłŅľ ļņ ŅĸńňļŅĸķ ĶłŁĶĸŅŁļŁĺ ageing phenomena on several components of the main primary and secondary systems. Moreover, the first Topical Peer Review, required by Council ļŅĸĶŇļʼnĸ ӅӃӄӇѼӋӊѼ ňŅĴŇłŀ łĹ Ӌׇ ňĿŌ ӅӃӄӇё ĴŀĸŁķļŁĺ ļŅĸĶŇļʼnĸ ӅӃӃӌѼӊӄѼ ňŅĴŇłŀ ĸņŇĴĵĿļņĻļŁĺ Ĵ ĶłŀŀňŁļŇŌ ĹŅĴŀĸŊłŅľ ĹłŅ ŇĻĸ nuclear safety of nuclear installations on the subject of ageing management, confirmed that the ageing management approach ĴķłŃŇĸķ ĹłŅ ѡņ ŁňĶĿĸĴŅ ŅĸĴĶŇłŅņ ļņ ĴŃŃŅłŃŅļĴŇĸє ŁĴŇļłŁĴĿ action plan has been drafted in response to the conclusions of this review, notably with regard to considering the specificities of the sites in their local ageing management programmes, the inspections of buried piping and the need for an ageing management programme during the lengthy construction phases of new facilities and prolonged reactor outage periods. In 2020, ASN will assess the implementation of this action plan. א ِ׏׏ Áǝƺ IǼƏȅƏȇɮǣǼǼƺ 0¨« The EPR is a PWR using a design that has evolved from that łĹ ŇĻĸ ŅĸĴĶŇłŅņ ĶňŅŅĸŁŇĿŌ ļŁ łŃĸŅĴŇļłŁ ļŁ ŅĴŁĶĸё ŇĻňņ ĸŁĴĵĿļŁĺ it to meet the following reinforced safety objectives: reduction in the number of significant events, mitigation of discharges, reduced volume and activity of waste, reduced individual and collective doses received by the workers (in normal operation and incident situations), reduced overall frequency of core melt, ŇĴľļŁĺ ĴĶĶłňŁŇ łĹ ĴĿĿ ŇŌŃĸņ łĹ ĹĴļĿňŅĸņ ĴŁķ ĻĴōĴŅķņ ĴŁķ ŅĸķňĶĸķ radiological consequences of any accidents. After a period of a decade during which no nuclear reactors ŊĸŅĸ ĵňļĿŇ ļŁ ŅĴŁĶĸё ņňĵŀļŇŇĸķ Ĵ ĶŅĸĴŇļłŁ ĴňŇĻłŅļņĴŇļłŁ application with the Ministers responsible for nuclear safety and for radiation protection, for an EPR type reactor with a power łĹ ӄёӉӈӃׇ ĸ łŁ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ņļŇĸё ŊĻļĶĻ ŊĴņ ĴĿŅĸĴķŌ Ļłŀĸ Ňł ŇŊł ŅĸĴĶŇłŅņ łĹ ӄёӆӃӃ ĸє Ļĸ łʼnĸŅŁŀĸŁŇ ĴňŇĻłŅļņĸķ ļŇņ ĶŅĸĴŇĸķ ŇĻŅłňĺĻ ĸĶŅĸĸ ӅӃӃіӈӆӇׇ łĹ ӄӃׇ ŃŅļĿ ӅӃӄӊё ĴĹŇĸŅ Ĵ ĹĴʼnłňŅĴĵĿĸ łŃļŁļłŁ ļņņňĸķ ĵŌ following the examination process. This Decree was modified in ӅӃӄӊׇŇł ĸŋŇĸŁķ ŇĻĸ Ňļŀĸ ĴĿĿłŊĸķ ĹłŅ ĶłŀŀļņņļłŁļŁĺ łĹ ŇĻĸ ŅĸĴĶŇłŅє After the issue of this Creation Authorisation Decree and the ĵňļĿķļŁĺ ŃĸŅŀļŇё ĶłŁņŇŅňĶŇļłŁ łĹ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ŅĸĴĶŇłŅ began in September 2007. The first concrete was poured for the nuclear island buildings in December 2007. Since then, the civil engineering work has continued and is now almost complete. Ĵļŀņ Ňł ĿłĴķ ĹňĸĿ ĴŁķ ņŇĴŅŇ ňŃ ŇĻĸ ŅĸĴĶŇłŅ ĴŇ ŇĻĸ ĸŁķ łĹ ӅӃӅӅє This takes account of the time needed on the one hand to repair certain welds on Main Secondary Systems (MSS) and, on the other, to allow the end of the erection and testing operations. א ِ׏׏ِ׏ 0ɴƏȅǣȇƏɎǣȒȇ Ȓǔ Ɏǝƺ ƏɖɎǝȒȸǣɀƏɎǣȒȇ ƏȵȵǼǣƬƏɎǣȒȇɀ • 0ɴƏȅǣȇƏɎǣȒȇ Ȓǔ Ɏǝƺ ƬȒȅȅǣɀɀǣȒȇǣȇǕ ƏɖɎǝȒȸǣɀƏɎǣȒȇ ƏȵȵǼǣƬƏɎǣȒȇ Ł ĴŅĶĻ ӅӃӄӈё ņĸŁŇ ļŇņ ĶłŀŀļņņļłŁļŁĺ ĴňŇĻłŅļņĴŇļłŁ application for the installation, including the safety analysis report, the general operating rules, a study of the facility’s waste management, the PUI, the decommissioning plan and an update łĹ ŇĻĸ ĹĴĶļĿļŇŌѡņ ļŀŃĴĶŇ ĴņņĸņņŀĸŁŇє łĿĿłŊļŁĺ Ĵ ŃŅĸĿļŀļŁĴŅŌ examination, ASN considered that all the documents required by the regulations were officially present, but it decided that additional justifications were needed if ASN was to be able to reach a final decision on the commissioning authorisation application. ASN began the technical examination of the subjects for which most of the information was available, although it did submit some requests on certain points. In June 2017, ASN received updated versions of the commission- ing authorisation and partial commissioning authorisation files. Some elements still need to be provided before ASN is able to issue a position statement on the commissioning authorisation ĴŃŃĿļĶĴŇļłŁ ĹļĿĸє Ł ӅӃӄӋё ŀłŅĸ ŃĴŅŇļĶňĿĴŅĿŌ ļņņňĸķ ŅĸńňĸņŇņ for additional information regarding the general operating rules. ĴĿņł łĵŇĴļŁĸķ ŇĻĸ łŃļŁļłŁ łĹ ŇĻĸ łŁ ӇׇĴŁķ ӈׇ ňĿŌׇӅӃӄӋ ĶłŁĶĸŅŁļŁĺ ŇĻĸ ņĴĹĸŇŌ ĴŁĴĿŌņļņ ŅĸŃłŅŇ ĹłŅ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ reactor. This meeting was devoted in particular to the action taken following the previous GPR sessions devoted to this reactor since 2015. The Advisory Committee considers that the reactor’s safety case is on the whole satisfactory and points out that some additional information is still required concerning how the fire risk is addressed and the behaviour of the fuel rods which have experienced a boiling crisis. The GPR also considers that the design and dimensioning of the back-up systems and auxiliary safety systems are on the whole satisfactory and observes that additional information is still required concerning the breaks ĿļĴĵĿĸ Ňł ĴĹĹĸĶŇ ŇĻĸ ĹňĸĿ ņŇłŅĴĺĸ ŃłłĿ ĶłłĿļŁĺ ņŌņŇĸŀє Ł ӅӃӄӌё submitted requests for supplements to the safety case that are needed for a final decision to be reached on the commissioning authorisation application. • 0ɴƏȅǣȇƏɎǣȒȇ Ȓǔ Ɏǝƺ ȵƏȸɎǣƏǼ ƬȒȅȅǣɀɀǣȒȇǣȇǕ ƏɖɎǝȒȸǣɀƏɎǣȒȇ ƏȵȵǼǣƬƏɎǣȒȇ ǔȒȸ ƏȸȸǣɮƏǼ Ȓǔ Ɏǝƺ ǔɖƺǼ At the same time as the commissioning authorisation application, ņĸŁŇ Ĵ ŃĴŅŇļĴĿ ĶłŀŀļņņļłŁļŁĺ ĴŃŃĿļĶĴŇļłŁ ĹłŅ ŇĻĸ ĹĴĶļĿļŇŌё Ňł allow the arrival of fuel on the site. ASN will adopt a position on this application in 2020. א ِ׏׏ِ א xȒȇǣɎȒȸǣȇǕ Ȓǔ ƬȒȇɀɎȸɖƬɎǣȒȇً ɀɎƏȸɎ ٮ ɖȵ ɎƺɀɎɀ ƏȇƳ ȵȸƺȵƏȸƏɎǣȒȇ ǔȒȸ ȒȵƺȸƏɎǣȒȇ ASN is faced with numerous challenges concerning oversight of the construction, start-up tests and preparation for operation of ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ŅĸĴĶŇłŅє Ļĸņĸ ĴŅĸѓ Ҋ checking the quality of the equipment manufacturing and installation construction work in a manner commensurate with the safety, radiation protection and environmental protection issues, in order to be able to rule on the ability of the installation to meet the defined requirements; Ҋ ensuring that the start-up tests programme is satisfactory, that the tests are correctly performed and that the required results are obtained; Ҋ ensuring that the various stakeholders learn the lessons from the construction phase and the performance of the start-up tests, including the upstream phases (selection and monitoring of contractors, construction, procurement, etc.) which will enable the as-built installation to comply with the safety case for the duration of the project; 308 ASN Report on the state of nuclear safety and radiation protection in France in 2019 ׏׎ ٲ THE EDF NUCLEAR POWER PLANTS