Abstracts ASN Report 2019

and have a negative impact on the safety of the facility and the radiation protection of the workers involved. ŇĴľĸņ ŇĻĸ ŁĸĶĸņņĴŅŌ ņŇĸŃņ Ňł ĶłŁŇŅłĿ ŇĻĸ Ņļņľņ ĴņņłĶļĴŇĸķ ŊļŇĻ ŇĻĸ ņňĵĶłŁŇŅĴĶŇĸķ ĴĶŇļʼnļŇļĸņ ĴŁķ ŅĸĺňĿĴŅĿŌ ňŃķĴŇĸņ ŇĻĸŀє has thus reinforced the preparation of outages, more particularly to guarantee the availability of human and material resources. ASN checks the conditions surrounding the preparation for (schedule, required human resources, etc.) and performance of the subcontracted activities (relations with the licensee, monitoring by the licensee, etc.). It also checks that the workers involved have the means needed (tools, operating documentation, etc.) to perform their tasks, in particular when these means are made ĴʼnĴļĿĴĵĿĸ ĵŌ є א ِ ה ِ א ɀɀƺɀɀȅƺȇɎ Ȓǔ Ɏǝƺ ɯȒȸǸǣȇǕ Ȓǔ Ɏǝƺ ȒȸǕƏȇǣɀƏɎǣȒȇɀ ƏȇƳ ƬȒȇɎȸȒǼ Ȓǔ ƏƬɎǣɮǣɎǣƺɀ • áȒȸǸǣȇǕ ƺȇɮǣȸȒȇȅƺȇɎɀ ĶłŁņļķĸŅņ ŇĻĴŇ ŀňņŇ ŃĴŌ ĺŅĸĴŇĸŅ ĴŇŇĸŁŇļłŁ Ňł ŇĻĸ ńňĴĿļŇŌ łĹ ŇĻĸ ŊłŅľļŁĺ ĸŁʼnļŅłŁŀĸŁŇņє łŅ ĸĴĶĻ ŊłŅľĸŅё ŇĻĸ ĿļĶĸŁņĸĸ ŀňņŇ guarantee working conditions which do not impair the quality of his or her work, more particularly in terms of accessibility to the premises and the identification of pathways, logistics which must not hamper the performance of an activity, the provision of tools and spares and operational documentation that is up-to-date and which must give reliable and safe information and instructions. • xƏȇƏǕƺȅƺȇɎ Ȓǔ ȒȵƺȸƏɎǣȒȇƏǼ ƳȒƬɖȅƺȇɎƏɎǣȒȇ Ł ӅӃӄӋё łĵņĸŅʼnĸķ ŇĻĴŇ ĹłŅ ĴĿĿ łĹ ļŇņ ņё Łĸĸķĸķ to significantly improve its management of the operational ķłĶňŀĸŁŇĴŇļłŁє Ł ӅӃӄӌё ŇĻňņ ŅĸļŁĹłŅĶĸķ ļŇņ ŀłŁļŇłŅļŁĺ łĹ the management of this documentation. Numerous analyses of ņļĺŁļĹļĶĴŁŇ ĸʼnĸŁŇņ ŅĸŃłŅŇĸķ ļŁ ӅӃӄӌׇņŇļĿĿ ņĻłŊ ŃŅłĵĿĸŀņ ŅĸĿĴŇļŁĺ Ňł ŇĻĸ łŃĸŅĴŇļłŁĴĿ ķłĶňŀĸŁŇĴŇļłŁє ňŅŇĻĸŅŀłŅĸё ŅĸĺňĿĴŅĿŌ finds that the documentation could be improved (unsuitable ergonomics, working documents that are incomplete, too generic or not up-to-date, procedures which do not take account of the reactor states or specific features of the site, etc.), and is not always rigorously applied by the workers (shortcomings in the exhaustiveness of the work monitoring files, assimilation of the files and filling out of the procedures). These weaknesses can be found in various operating domains, notably incident or accident operations, with regard to which significant improvements must be made to the documentation. • xƏȇƏǕƺȅƺȇɎ Ȓǔ ɀǸǣǼǼɀً ɎȸƏǣȇǣȇǕ ƏȇƳ ȷɖƏǼǣǔǣƬƏɎǣȒȇɀ The organisation put into place on the sites to manage the skills, qualifications and training remains on the whole satisfactory in ӅӃӄӌє Ļĸ ļŀŃĿĸŀĸŁŇĴŇļłŁ łĹ ŇĻĸ ŁĴŇļłŁĴĿ ĵĴņĸĿļŁĸ ŅĸńňļŅĸŀĸŁŇņ on the sites, as well as the adoption of provisions such as the training committees at several levels within the organisation (shift crew, department and management) would appear to be producing good results. However, ASN is still regularly finding that the technical skills of certain workers and supervisors are insufficient (lack of knowledge of equipment, out of date knowledge of equipment which has been modified, supervisors with insufficient technical expertise of the subjects being monitored, and so on). These shortcomings are particularly noticeable on the sites where there is significant workforce turnover. • xȒȇǣɎȒȸǣȇǕ Ȓǔ ɀɖƫƬȒȇɎȸƏƬɎƺƳ ƏƬɎǣɮǣɎǣƺɀ ASN considers that the quality of monitoring remains on ŇĻĸ ŊĻłĿĸ ņŇĴĵĿĸ ļŁ ӅӃӄӌׇłŁ ĴĿĿ ŇĻĸ ņļŇĸņё ĵŌ ĶłŀŃĴŅļņłŁ ŊļŇĻ ӅӃӄӋє Ļĸ ŃŅłĺŅĸņņ łĵņĸŅʼnĸķ ļŁ ӅӃӄӋׇļŁ ŇĸŅŀņ łĹ ŃŅĸŃĴŅĴŇļłŁ łĹ ŇĻĸ ŀłŁļŇłŅļŁĺ ŃŅłĺŅĴŀŀĸņ ļņ ĶłŁĹļŅŀĸķ ļŁ ӅӃӄӌє Ļļņ ļņ due in part to efficiency, to the good assimilation of the new tool assisting with the drafting of monitoring programmes and to the performance of the monitoring actions. However, the subcontracted work monitoring procedures still reveal difficulties on certain sites (shortcomings in the monitoring of technical operations, difficulties with the transmission of defined requirements to certain contractors or, more generally, with making them aware of the issues linked to the sensitive activities, unsatisfactory control of the quality of the work done by the subcontractors). • Áǝƺ ȒȵƺȸƏɎǣȇǕ ƺɴȵƺȸǣƺȇƬƺ ǔƺƺƳƫƏƬǸ ȵȸȒƬƺɀɀ In recent years, all the NPPs have implemented a formal organisation and dedicated tools to oversee and coordinate internal and external operating experience feedback. This must however be improved on a majority of the sites. Shortcomings with regard to the detection and characterisation of the difficulties ĴŁķ ķĸʼnļĴŇļłŁņ ŅĸŃłŅŇĸķ ļŁ ŇĻĸ ĹļĸĿķ ĴŅĸ ņŇļĿĿ ŃŅĸņĸŁŇє ņ ļŁ ӅӃӄӋё the encouragement given to the contractors to transmit positive or negative findings via the debriefings and dedicated tools is only bearing fruit on a minority of sites. On this point, ASN strongly disapproves of the transition to a new tool for inputting the findings from the field, to which the contractors do not at present have access. ASN also noted weaknesses on most sites concerning the detection, transmission and processing of early warning signs, as well as insufficient integration of positive operating experience feedback. Weaknesses also persist in the exploitation of operating ĸŋŃĸŅļĸŁĶĸ ĹĸĸķĵĴĶľ ĹŅłŀ ŇĻĸ łŇĻĸŅ ņ ҎŁłŇĴĵĿŌ ŇĻĸ significant events) or even from the other reactors on the same site. Many significant events reveal that external operating feedback was not adequately taken into account. The analyses conducted by the sites further to significant events are generally appropriate and the identification of organisational causes is progressing. However, the analysis of the root causes all too often still leads to relatively unambitious measures which do not sufficiently call the organisation into question and which are no more than limited-scope awareness-raising actions for the staff, departments or contractors identified as being responsible ĹłŅ ŇĻĸ ķĸʼnļĴŇļłŁє ļŁĴĿĿŌё Ňłł ŀĴŁŌ ņļŇĸņ ĴŅĸ ņŇļĿĿ ŃĴŅŇļĶňĿĴŅĿŌ limited when it comes to assessing the effectiveness of the corrective measures. • Áǝƺ ȒɮƺȸƏǼǼ ȒȸǕƏȇǣɀƏɎǣȒȇƏǼ ƏȵȵȸȒƏƬǝ Over and above the comments already made, ASN identified a ŁňŀĵĸŅ łĹ ŊłŅŅŌļŁĺ ņļŇňĴŇļłŁņ ļŁ ӅӃӄӌׇҎŀłŁļŇłŅļŁĺ ļŁ ŇĻĸ ĶłŁŇŅłĿ room, management of operating instructions in the event of an incident or accident, radiation protection, etc.) in which the worker groups lose sight of the fact that their actions make a contribution to safety, with some deviations actually eventually being considered as normal. In this context, it would appear necessary for the organisational aspect to be dealt with more Waste storage in the Blayais NPP 298 ASN Report on the state of nuclear safety and radiation protection in France in 2019 ׏׎ ٲ THE EDF NUCLEAR POWER PLANTS