ASN Report 2017

358 ASN report on the state of nuclear safety and radiation protection in France in 2017 Chapter 12  - EDF Nuclear Power Plants In 2018, ASN will more specifically carry out inspections on: ཛྷ ཛྷ the detection and handling of deviations concerning the conformity of the facilities; ཛྷ ཛྷ monitoring of activities performed by contractors; ཛྷ ཛྷ the prevention and management of spills of dangerous substances ; ཛྷ ཛྷ the quality of the documentation on conventional risks and on the operation of the installations, in particular with regard to the display of certain instructions inside the installations and the labelling of hazardous substances. ཛྷ ཛྷ EDF’s approach to integrating the items and activities concerning the control of detrimental effects and environmental impacts, from among the equipment and activities important for protection defined by the Order of 7th February 2012; ཛྷ ཛྷ deviations from the operating baseline requirements concerning waste management, in particular with regard to compliance with the maximum storage capacities for radioactive waste in the specific buildings and areas. 2.6 Prevention and control of organisational risks The contribution of people and organisations to the safety of NPPs is a decisive factor in all steps of the lifecycle of the facilities (design, construction, commissioning, operation, decommissioning). ASN therefore focuses on the conditions which are favourable or prejudicial to a positive contribution to NPP safety by the operators and worker groups. It defines Social, Organisational and Human Factors (SOHF) as being all the aspects of working situations and of the organisation that will have an influence on the work done by the operators. 2.6.1 Monitoring how organisations work The integrated management system The Order of 7th February 2012 stipulates that the licensee must in particular have the technical skills needed to manage the activities. Of these, the processing of significant events requires an in-depth analysis of the organisational and human causes in addition to the technical causes. Furthermore, the above-mentioned Order requires the licensee to define and implement an Integrated Management System (IMS) to ensure that the requirements concerning the protection of interests are systematically considered in any decision concerning the facility. The IMS must specify the steps taken with regard to organisation and to resources of all types, in particular those adopted to manage the activities important for the protection of interests. ASNmonitoring of the working of EDF’s organisations focuses on how the IMS is implemented. ASNmore particularly ensures that the design or modification approach adopted by the engineering centres when a new facility is designed or an existing facility is modified takes account of the users’ needs and does not compromise compliance with the defined requirements. More broadly, ASN checks the organisation put into place by EDF to manage the skills and staffing needed to perform these activities. Pursuant to the stress tests, ASN issued a first position statement in 2017 regarding the method for defining staffing levels adopted by EDF for management of extreme situations. GRAPH 4: Gaseous radioactive discharges for the NPPs in 2017 (per pair of reactors) Blayais/2 Bugey/2 Chinon/2 Cruas-Meysse/2 Dampierre-en-Burly/2 Fessenheim Gravelines/3 Saint-Laurent-des-Eaux Tricastin/2 Belleville-sur-Loire Cattenom/2 Flamanville Golfech Nogent-sur-Seine Paluel/2 Penly St-Alban / St-Maurice Chooz Civaux 0 2 4 6 8 10 0,00 0,05 0,10 0,15 0,20 0,25 Activity discharged (TBq) Activity discharged (GBq) Halogens and aerosols (GBq) Gases (TBq) As there can be a different number of reactors on each site, the results are given “per pair of reactors”, to enable a comparison to be made from one site to another. This for example entails: • keeping the results as-are for the Golfech site, which has two reactors; • dividing by two those of Chinon, which has four reactors (Chinon/2); • dividing by three those of Gravelines, which has six reactors (Gravelines/3). In addition, the discharge data transmitted by EDF to ASN for each site are not representative of the operating time of the installations or of the activities performed on the sites.