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Deviation in technical standards governing the manufacture of nuclear-reactor components by Framatome | EDF France

Framatome has informed EDF of a deviation from technical standards governing the manufacture of nuclear-reactor components. Relating to standards associated with the manufacturing process, the deviation concerns an excursion from temperature ranges in certain areas during manufacturing operations, more specifically involving detensioning heat treatment on some steam generator welds .

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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 France

(3) The issue of deviation from the technical manufacturing baseline for Framatome reactor components (stress-relieving heat treatment process for the welds with electrical resistance) (see EDF press release of 18 September 2019) ,which concerns the four steam generators and pressuriser at Flamanville 3 EPR, is not covered in this press release.

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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
  7. (1)

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