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26 résultats trouvés pour « break preclusion »

Welds in the main secondary system of the Flamanville EPR: EDF sets up corrective actions and adjusts schedule and target construction costs | EDF France

These welds do not comply with" the high quality" requirements 3 defined by EDF during the EPR design phase (break preclusion principle). For 10 other welds, EDF has submitted a proposal to the ASN detailing a specific justification method to confirm the high level of safety at the plant throughout its operating life .

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Flamanville EPR : update | EDF FR

EDF has reviewed the position of the Permanent Group of experts for nuclear pressure equipment (GP ESPN) on the quality deviations affecting the welds located on the main steam transfer pipes covered by the break preclusion principle of the Flamanville 3 EPR, made public on the 11th of April 2019.

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Flamanville EPR: EDF is reviewing decision from French Nuclear Safety Authority | EDF FR

EDF is reviewing the decision from the French Nuclear Safety Authority (ASN) notified in a letter dated 19 June 2019, related to the deviations affecting welds on the main steam transfer pipes covered by the break preclusion principle at the Flamanville EPR. EDF is currently analysing the impact of this decision on the Flamanville EPR schedule and cost, and, in the upcoming weeks, it will give a detailed update on the next steps in the project .

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Flamanville EPR: EDF has adopted a scenario for upgrading the main secondary system penetration welds with robots and has adjusted the construction schedule and estimated cost accordingly(1) | EDF FR

In the letter of 19 June 2019, the Nuclear Safety Authority (ASN) asked EDF to repair the eight containment penetration welds for Flamanville EPR, not compliant with the break preclusion principle (2) . Within this framework, EDF has assessed three repair scenarios... The process of realignment of the 58 welds on the secondary system with quality deviations or not in compliance with the break preclusion principle requirements defined by EDF is being continued on site.

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  6. Flamanville EPR: EDF has adopted a scenario for upgrading the main secondary system penetration welds with robots and has adjusted the construction schedule and estimated cost accordingly
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