Supervision of the EPR reactor

The EPR reactor is a pressurised water reactor (PWR) whose design, which has evolved with respect to that of the PWRs currently in operation in France, is intended to meet more stringent safety objectives.

ASN’s supervision of the Flamanville-3 reactor construction (EPR) : News

Read the newsletters about the supervision of the Flamanville-3 reactor construction (EPR) ...

Published on 08/10/2012 • 05:26 pm

Information notice

Information Letter No.13

Since the end of 2011, ASN has conducted several inspections [link to inspection follow-up letters posted on line on asn.fr] that continue its monitoring of the construction of the Flamanville 3 EPR reactor and various other manufacturing operations for this reactor. The notable points observed over these last few months are detailed below.

Published on 16/04/2012 • 09:30 am

Information notice

I&C architecture of the Flamanville 3 EPR

ASN considers that the changes EDF has made to the instrumentation and control (I&C) architecture of the Flamanville 3 EPR are satisfactory and enable it to lift the reservations it expressed in October 2009. This position is based on the analysis by its technical support organisation, IRSN, and the opinion of the Advisory Committee for nuclear reactors.

Published on 21/03/2012 • 02:00 pm

Information notice

Information Letter No.12

ASN oversight of the Flamanville 3 EPR construction site continued during the second half of 2011. Details of recent findings are provided below: - Inspection of prestressing tendon duct installation work - Manufacture of polar crane support brackets - Oversight of complex concreting operations - Quality control of tank, pool and liner welding operations - ASN report on the complementary safety assessments conducted by EDF after the Fukushima accident - Repair of reactor vessel head - Non-conformances detected during the pipe manufacturing process