The stress corrosion problem could be affecting all of France’s nuclear reactors

Antinuclear

 Nuclear: the stress corrosion phenomenon could affect all of France’s reactor models.
Four additional reactors, including one of 900 megawatts (MW), could be affected by the “stress corrosion” phenomenon detected on portions of auxiliary piping in the primary circuit of certain EDF nuclear reactors.

This announcement is part of the review of certain welds initiated at the end of 2020 and which should be completed in 2024. The company is continuing its discussions with the Nuclear Safety Authority (ASN) “on the overall strategy of controls, expertise and treatment of this phenomenon”.

On April 14, when updating its information note on the subject, EDF announced that “indications were detected during the performance of non-destructive ultrasonic testing” on portions of the pipes of the B3 reactors at Chinon (Indre-et-Loire), reactor 3 at Cattenom (Moselle), reactor 2 at Flamanville (Manche) and reactor 1 at Golfech (Tarn-et-Garonne).

The company is continuing its investigations to…

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