The French Nuclear Safety Authority (ASN) has just told EDF
that it was to remove its reservations with regard to the
architecture of the digital Instrumentation and Control (I&C)
system of the Flamanville 3(FA3) EPR™ reactor. With regard to
its certification, the ASN requested additional information
about its architecture. As a consequence, AREVA put forward
adjustments to improve the system's robustness.
ASN considers that the changes made to the instrumentation
and control (I&C) architecture of the Flamanville 3 EPR™
reactor 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
"We are proud of the technical work carried out by our teams
to meet the expectations of our client and the French safety
authority. This decision will corroborate our technical
know-how for our international clients, outside France,"
declared Claude Jaouen, Director of AREVA's Reactors &
The I&C of the FA3 EPR™ reactor comprises two diversified
digital platforms of the latest generation. The AREVA
TELEPERM® XS safety platform carries out the necessary
functions to protect the reactor should an accident occur.
The SIEMENS SPPA-T2000 platform mainly runs the reactor when
it is operating normally.
The TELEPERM® XS safety digital Instrumentation and Control
system developed by AREVA has already been chosen for 11
types of reactor in 14 countries. It is being installed, or
will be installed, in 74 units of 41 separate nuclear power
stations. It is currently the only one of its generations to
be certified in the United States.
* The term instrumentation and control (I&C) covers the
temperature, pressure, etc. sensors; devices which, based on
a certain number of input data, produce automatic orders to
maintain parameters within authorised limits, or to trigger
protection measures such as reactor emergency shutdown; the
operator interfaces in the control room (control consoles,
alarms, etc.). Because they perform functions that are
important for reactor safety, these elements are subject to
particularly strict requirements. (Source: ASN)