New incident on the Flamanville EPR site.
The Nuclear Safety Authority (ASN) disclosed on Tuesday the presence of a
"design deviation"
of three connections (called
"taps"
) on the primary circuit of the reactor, located in the nuclear zone.
“This is a non-conformity, which means that the reactor cannot start up in this configuration”
, we told ASN.
The Flamanville EPR is due to enter service in 2023.
Read also:
Flamanville EPR: anatomy of an industrial failure
The primary circuit is one of the most critical elements of a power plant.
"A water leak on this circuit can lead, if it is not compensated for, a cooling fault and a heating of the reactor core
, describes the nuclear expert Yves Marignac, of the NegaWatt Institute.
This water s '' escaping from the primary circuit under very high pressure will vaporize in the enclosure and cause a rise in pressure in the reactor building, which can lead to radioactivity leaks. ”
The EPR is equipped with several redundant back-up equipment for
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