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All the news about nuclear safety and radiation protection

Published on 09/11/2017 • 03:00 pm

Information notice

Ruthenium 106 in the ambient air in France: no risk identified for the population

As part of its duty of radioactivity monitoring nationwide, the French Institute for Radiation Protection and Nuclear Safety (IRSN) measured the presence of ruthenium 106 in south-eastern France, between the end of September and the beginning of October 2017, albeit at very low levels, representing a few microbecquerels per cubic metre (µBq/m3). This detection led to the distribution by IRSN of several information notices on its website.

Level-2 incident involving the emergency diesel generator sets

Published on 31/10/2017 • 02:30 pm

Information notice

Level-2 incident involving the emergency diesel generator sets

L’ASN classe au niveau 2 de l’échelle INES un événement significatif pour la sûreté relatif à un défaut de résistance au séisme des systèmes auxiliaires des groupes électrogènes de secours à moteur diesel (diesels de secours) des réacteurs 2 et 5 de la centrale nucléaire du Bugey et des réacteurs 1 et 2 de la centrale nucléaire de Fessenheim. Un événement similaire a fait l’objet d’une première note d’information le 20 juin 2017 pour vingt réacteurs de 1300 MWe.

Safety of Spent Fuel Management and of Radioactive Waste Management obligations

Published on 31/10/2017 • 12:00 pm

Information notice

Safety of Spent Fuel Management and of Radioactive Waste Management obligations

The sixth triennial review meeting of the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (called the "Joint Convention") will take place from 21 May to 1 June 2018 at the International Atomic Energy Agency (IAEA) headquarters in Vienna.

Published on 16/10/2017 • 04:20 pm

Press release

Risk of loss of heat sink for 29 nuclear reactors operated by EDF

ASN gives a level 2 rating on the INES scale to a significant safety event regarding a risk of the loss of heat sink for the reactors in the Belleville-sur-Loire, Cattenom, Chinon, Cruas, Dampierre-en-Burly, Golfech, Nogent-sur-Seine, Paluel, Saint-Alban and Saint-Laurent-des-Eaux NPPs. 29 900 MWe and 1300 MWe reactors are concerned by this event.

Published on 16/10/2017 • 12:08 pm

Information notice

Follow-up to the IRRS international audit mission

From 1st to 9th October 2017, ASN received an IAEA delegation responsible for follow-up to the Integrated Regulatory Review Service (IRRS) international audit mission carried out in 2014, concerning all of the activities regulated by ASN.

Flamanville EPR reactor: ASN issues its opinion

Published on 11/10/2017 • 04:05 pm

Information notice

Flamanville EPR reactor: ASN issues its opinion

On 10th October 2017, ASN issued its opinion on the anomaly in the steel used for the Flamanville EPR reactor pressure vessel lower head and closure head. ASN considers that this anomaly is not such as to compromise the commissioning of the reactor pressure vessel, provided that specific checks are carried out during operation of the installation. As the feasibility of these checks cannot at present be confirmed for the closure head, ASN considers that the current closure head cannot be used beyond 2024.

Published on 04/10/2017 • 02:16 pm

Information notice

4e conference of the MDEP

Created in 2006, the Multinational Design Evaluation Programme (MDEP) currently brings together the nuclear safety authorities of fifteen countries.

ASN imposes temporary shutdown of the Tricastin nuclear power plant

Published on 28/09/2017 • 01:15 pm

Press release

ASN imposes temporary shutdown of the Tricastin nuclear power plant

In a resolution dated 27 September 2017, ASN required that EDF temporarily shut down the four reactors of the Tricastin nuclear power plant as rapidly as possible.

Le Creusot : ASN makes restart of the EDF reactors dependent on the transmission of specific results

Published on 20/09/2017 • 10:15 am

Information notice

Le Creusot : ASN makes restart of the EDF reactors dependent on the transmission of specific results

Following the detection of an anomaly on the Flamanville EPR reactor pressure vessel in 2014, ASN asked Areva NP to conduct a manufacturing quality review in its Creusot Forge plant (Saône-et-Loire département), which revealed the existence of irregularities in certain manufacturing files.

 Cigeo radioactive waste disposal facility

Published on 29/08/2017 • 12:28 pm

Information notice

Cigeo radioactive waste disposal facility

In April 2016, Andra sent ASN the safety options dossier (DOS) for the Cigeo radioactive waste deep geological disposal project. Submission of the DOS means that the project is now subject to a process covered by regulations concerning basic nuclear installations (BNI) and more specifically by article 6 of decree 2007.1557 of 2nd November 2007.

Published on 29/08/2017 • 12:08 pm

Information notice

2016-2018 PNGMDR

The 2016-2018 National Plan for Radioactive Materials and Waste Management (PNGMDR) was published on 25th February 2017 by the Ministry for the Environment, Energy and the Sea and ASN. For the first time it underwent a process to assess its effects on the environment, followed by a public consultation.

Report on the State of Nuclear Safety and Radiation Protection in France in 2016.

Published on 12/07/2017 • 11:15 am

Press release

Report on the State of Nuclear Safety and Radiation Protection in France in 2016.

ASN considers that in 2016, the operating safety of the BNIs was on the whole maintained at a good level, although radiation protection still requires particular vigilance, especially in the medical field, in which there were four level 2 incidents in 2016.

ASN presents its position regarding the Flamanville EPR reactor vessel anomaly

Published on 28/06/2017 • 04:00 pm

Press release

ASN presents its position regarding the Flamanville EPR reactor vessel anomaly

On 28th June 2017, ASN presented its position regarding the Flamanville EPR reactor pressure vessel anomaly. ASN relied on the analysis of the files transmitted by Areva NP and EDF, carried out by its nuclear pressure equipment department and its technical support organisation IRSN, and on the opinion of its Advisory Committee for nuclear pressure equipment.

 Level 2 incident concerning the emergency diesel generator sets

Published on 21/06/2017 • 02:23 pm

Information notice

Level 2 incident concerning the emergency diesel generator sets

ASN rated as level 2 on the INES scale a significant safety incident regarding the seismic resistance of the auxiliary systems of the emergency diesel generator sets of twenty 1300 MWe reactors on the Belleville, Cattenom, Flamanville, Golfech, Nogent, Paluel, Penly and Saint-Alban NPPs.

Information Letter No.19: ASN actions for monitoring the Flamanville EPR reactor construction site: notable points.

Published on 09/06/2017 • 07:30 pm

Information notice

Information Letter No.19

In the second half of 2016, ASN continued its monitoring of the Flamanville 3 EPR reactor and its various manufacturing operations. The notable points observed over these last few months are detailed below.