Abstracts ASN Report 2019

Ҋ ensuring that the licensee takes the necessary steps so that the teams in charge of operating the installation after commissioning are well-prepared. To do this, ASN set binding requirements for the design, ĶłŁņŇŅňĶŇļłŁ ĴŁķ ņŇĴŅŇіňŃ ŇĸņŇņ ĹłŅ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ӆׇ ŅĸĴĶŇłŅ ĴŁķ łŃĸŅĴŇļłŁ łĹ ĿĴŀĴŁʼnļĿĿĸ ŅĸĴĶŇłŅņ ӄׇĴŁķ ӅׇļŁ ŃŅłŋļŀļŇŌ Ňł the construction site (2) . Compliance with these requirements is regularly checked by ASN through inspections and through examination of the commissioning authorisation application. As this is a nuclear power reactor, ASN is also responsible for labour inspection on the construction site. Lastly, ASN ensures oversight of the manufacture of the NPE that will be part of the primary and secondary systems of the nuclear steam supply system. The ŀĴļŁ ņŇĸŃņ ŇĴľĸŁ ĵŌ ļŁ ӅӃӄӌׇĴŅĸ ķĸņĶŅļĵĸķ ĵĸĿłŊє • …ɮƺȸɀǣǕǝɎ Ȓǔ Ɏǝƺ ƬȒȇɀɎȸɖƬɎǣȒȇً ƏɀɀƺȅƫǼɵ ƏȇƳ ɎƺɀɎ ƏƬɎǣɮǣɎǣƺɀ Ȓȇ Ɏǝƺ IǼƏȅƏȇɮǣǼǼƺ 0¨« ȸƺƏƬɎȒȸ ɀǣɎƺ ĶĴŅŅļĸķ łňŇ ӄӅׇ ļŁņŃĸĶŇļłŁņ łŁ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ŅĸĴĶŇłŅ ĶłŁņŇŅňĶŇļłŁ ņļŇĸ ļŁ ӅӃӄӌє łŅĸłʼnĸŅё ŇŊł ļŁņŃĸĶŇļłŁņ more specifically concerning the construction site activities were ĶĴŅŅļĸķ łňŇ ļŁ ŇĻĸ ŃŅĸŀļņĸņ łĹ ŇĻĸ ŁķňņŇŅļĴĿ ļʼnļņļłŁ ļŁ Saint-Denis ( département ӌӆҏє In its construction site oversight activities, ASN devoted ŃĴŅŇļĶňĿĴŅ ĴŇŇĸŁŇļłŁ Ňł ŇĻĸ ĹłĿĿłŊļŁĺ ņňĵĽĸĶŇņ ļŁ ӅӃӄӌѓ ҄ defining and implementing a programme of additional checks ĹłŅ ŇĻĸ ńňĴĿļŇŌ ŅĸʼnļĸŊ Ĵņľĸķ Ňł ĶłŁķňĶŇ łŁ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ӆׇ ŅĸĴĶŇłŅ ĸńňļŃŀĸŁŇє Ļļņ ŅĸńňĸņŇ ĹłĿĿłŊņ ŇĻĸ ņĻłŅŇĶłŀļŁĺņ łĵņĸŅʼnĸķ ļŁ ѡņ ŀłŁļŇłŅļŁĺ łĹ łňŇņļķĸ contractors; ҄ the preparation for and performance of the start-up tests for ŇĻĸ ʼnĴŅļłňņ ņŌņŇĸŀņ łĹ ŇĻĸ ļŁņŇĴĿĿĴŇļłŁ ĴŁķ ѡņ łŅĺĴŁļņĴŇļłŁ for management of the overall tests. ASN has tightened up its oversight of these tests, which must help demonstrate that the structures, systems and components of the reactor meet the requirements assigned to them. ASN notably carried out a tightened inspection devoted to the performance of hot tests; ҄ ŃŅĸŃĴŅĴŇļłŁņ ĹłŅ łŃĸŅĴŇļłŁ ĵŌ ŇĻĸ ĸŁŇļŇŌ ŇĻĴŇ ŊļĿĿ ĵĸ ļŁ ĶĻĴŅĺĸ łĹ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ĴĹŇĸŅ ļŇņ ņŇĴŅŇіňŃє Ļļņ ĸŁŇļŇŌ ĶňŅŅĸŁŇĿŌ ĶłŀŃŅļņĸņ ŀłŅĸ ŇĻĴŁ ӇӃӃׇĸŀŃĿłŌĸĸņє ļŇĻ Ĵ ʼnļĸŊ Ňł ŅĸĴĶŇłŅ ĶłŀŀļņņļłŁļŁĺё ļņ ĶłŁŇļŁňļŁĺ ŊļŇĻ the gradual transfer of responsibility for the operation of the structures, systems and components from the entity in charge of construction and reactor start-up operations to the entity in charge of its future operation. The steps in this process enable the future operating personnel to improve their skills, familiarise themselves with the reactor equipment, draw up operating documentation and develop the appropriate tools. Through its oversight, ASN ensures that the future operating teams take advantage of operating experience feedback and ĵĸņŇ ŃŅĴĶŇļĶĸņ ĸŀŃĿłŌĸķ ļŁ ѡņ ņ ĴŁķ ŇĻĴŇ ŇĻĸŌ łŃŇļŀļņĸ their assimilation of the working of the equipment during reactor construction and systems start-up tests; ASN also monitors operations preparation activities; ҄ application of a strategy for the conservation, maintenance and testing of the equipment and structures present on ŇĻĸ ĶłŁņŇŅňĶŇļłŁ ņļŇĸ ňŁŇļĿ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ӆׇŅĸĴĶŇłŅ ļņ commissioned. Owing to the postponements to reactor ĶłŀŀļņņļłŁļŁĺ ĴŁŁłňŁĶĸķ ĵŌ ё ŀĴľĸņ ņňŅĸ ŇĻĴŇ continues to pay close attention to defining and complying with the requirements corresponding to the conservation, maintenance and testing of the equipment already installed and structures built, in order to ensure that requirements compliance obtained during assembly and start-up testing is maintained; Ӆє ŅĸņłĿňŇļłŁ ӅӃӄӆі іӃӆӇӊׇłĹ ӊׇ ĴŌ ӅӃӄӆє ҄ ĴŃŃŅłŃŅļĴŇĸ ŀĴŁĴĺĸŀĸŁŇ ĵŌ łĹ ŃŅłŇĸĶŇļłŁ łĹ ŇĻĸ environment, notably through checking implementation of integrated management between the licensee of the ĿĴŀĴŁʼnļĿĿĸׇӆׇŅĸĴĶŇłŅ ĴŁķ ŇĻłņĸ łĹ ĿĴŀĴŁʼnļĿĿĸ ӄׇĴŁķ Ӆє • …ɮƺȸɀǣǕǝɎ Ȓǔ Ɏǝƺ IǼƏȅƏȇɮǣǼǼƺ 0¨« ƺȇǕǣȇƺƺȸǣȇǕ ƏƬɎǣɮǣɎǣƺɀ Ł ӅӃӄӌё ĶĴŅŅļĸķ łňŇ ŇĻŅĸĸ ļŁņŃĸĶŇļłŁņ ļŁ ŇĻĸ engineering departments on the processing of deviations, analysis of the start-up test results and qualification of equipment. Ł ŇĻļņ ĿĴŇŇĸŅ ŃłļŁŇё ŇĻĸ ļŁņŃĸĶŇļłŁ ŃĸŅĹłŅŀĸķ ļŁ ӅӃӄӋׇĿĸķ Ňł ņĸŅʼnĸ ĹłŅŀĴĿ ŁłŇļĶĸ łŁ Ňł ĶłŀŃĿŌ ŊļŇĻ ŇĻĸ ŃŅłʼnļņļłŁņ łĹ ŅŇļĶĿĸ ӅєӈєӉׇłĹ ŇĻĸ ŅķĸŅ łĹ ӊׇ ĸĵŅňĴŅŌ ӅӃӄӅє Ł ĸŃŇĸŀĵĸŅ ӅӃӄӌё ĶĴŅŅļĸķ łňŇ Ĵ ĹňŅŇĻĸŅ ļŁņŃĸĶŇļłŁ łŁ ŇĻĸ ŇłŃļĶ łĹ ĸńňļŃŀĸŁŇ ńňĴĿļĹļĶĴŇļłŁє ׇłĵņĸŅʼnĸķ ŇĻĴŇ ŇĻĸ ņŇĸŃņ ŇĴľĸŁ ĵŌ Ňł ĸŁņňŅĸ ŇĻĸ ŇŅĴĶĸĴĵļĿļŇŌ łĹ ńňĴĿļĹļĶĴŇļłŁ ŅĸņĸŅʼnĴŇļłŁņ and their processing are satisfactory. ASN therefore envisages Łł ĹłĿĿłŊіňŃ Ňł ŇĻĸ ĴĵłʼnĸіŀĸŁŇļłŁĸķ ĹłŅŀĴĿ ŁłŇļĶĸє ļŁĴĿĿŌё ASN carried out an inspection following the reporting of a significant event regarding numerous deviations affecting a safety injection system pump. This inspection was carried out on the site of the supplier of this pump. • nƏƫȒɖȸ ǣȇɀȵƺƬɎǣȒȇ Ȓȇ Ɏǝƺ IǼƏȅƏȇɮǣǼǼƺ ژב 0¨« ȸƺƏƬɎȒȸ ƬȒȇɀɎȸɖƬɎǣȒȇ ɀǣɎƺ The actions carried out by the ASN labour inspectors in ӅӃӄӌׇĶłŁņļņŇĸķ ļŁѓ ҄ performing checks on the contractors working on the site; ҄ answering direct queries from the employees; ҄ carrying out inquiries following occupational accidents; ҄ investigating or jointly investigating requests for exemptions to provisions under the labour regulations. Application of the safety rules was regularly checked. Ł ӅӃӄӌё ŇĻĸ ĿĴĵłňŅ ļŁņŃĸĶŇłŅņ ĴĿņł ĶĴŅŅļĸķ łňŇ Ĵ ŁňŀĵĸŅ of checks on the regulatory provisions governing transnational secondment of workers. • …ɮƺȸɀǣǕǝɎ Ȓǔ z¨0 ƳƺɀǣǕȇ ǔȒȸ Ɏǝƺ IǼƏȅƏȇɮǣǼǼƺ 0¨« ژ ȸƺƏƬɎȒȸ ňŅļŁĺ ŇĻĸ ĶłňŅņĸ łĹ ӅӃӄӌё ĶłŁŇļŁňĸķ Ňł Ĵņņĸņņ ŇĻĸ conformity of the NPE design of the main primary and secondary systems. Having observed inadequate justification and incomplete design files for this equipment, more specifically with regard to the risk assessments, choice of materials and in-service inspectability of the equipment, ASN held numerous technical meetings ŊļŇĻ ŅĴŀĴŇłŀĸ ҎĹłŅŀĸŅĿŌ ŅĸʼnĴ ҏ ļŁ ӅӃӄӆׇĴŁķ ӅӃӄӇׇĴŁķ numerous technical meetings to define the additional data to ĵĸ ŃŅłʼnļķĸķє Ł ӅӃӄӈё ŅĴŀĴŇłŀĸ ĵĸĺĴŁ Ĵ ŅĸʼnļņļłŁ łĹ ĴĿĿ ŇĸĶĻŁļĶĴĿ design documentation for this equipment. This latter must be substantiated to take account of the deviations observed. The organisations approved for assessment of NPE conformity are authorised by ASN to assist it with the examination of this design documentation. Considerable activity on this topic should take place in 2020. • …ɮƺȸɀǣǕǝɎ Ȓǔ z¨0 ȅƏȇɖǔƏƬɎɖȸǣȇǕ ǔȒȸ Ɏǝƺ IǼƏȅƏȇɮǣǼǼƺ 0¨« ȸƺƏƬɎȒȸ ļŇĻ ŅĸĺĴŅķ Ňł łʼnĸŅņļĺĻŇ łĹ ŇĻĸ ŀĴŁňĹĴĶŇňŅĸ łĹ ŇĻĸ ĿĴŀĴŁʼnļĿĿĸ ŅĸĴĶŇłŅ ĸńňļŃŀĸŁŇё ŇĻĸ ĴĶŇļłŁ ŇĴľĸŁ ĵŌ ļŁ ӅӃӄӌׇŀĴļŁĿŌ concerned deviations affecting the welds on the main steam letdown lines. ASN more specifically convened its Advisory Committee for NPE on two occasions to rule on the solution ŃŅłŃłņĸķ ĵŌ є Taking account of the opinion of the Advisory Committee, ASN considered that repair of the welds on the containment penetrations prior to reactor start-up should be the reference ASN Report on the state of nuclear safety and radiation protection in France in 2019 309 ׏׎ ٲ THE EDF NUCLEAR POWER PLANTS 10