As part of the unit aging follow-up, a non.destructive examination has been designed to inspect the core zone of the Reactor Pressure Vessel (RPV). This ultrasonic process called “VPM” has been developed and qualified by Intercontroˆle in accordance with EDF specifications. The qualification has been attested by an accredited qualification body. In 1999, the VPM process was used the first time during the in-service inspection of TRICASTIN, unit 1. As a result of the RPV core zone inspection a set of under cladding flaw indications was detected and characterized with the VPM process. These flaws have been analysed as planar manufacturing flaws. In 2003, 4 cycles later, during the TRICASTIN Unit 1 outage inspection, “VPM” was used to characterize again this set of flaw indications in order to verify their dimensions. The changes of the main characteristics (specially height) between both the inspections were compared to the process accuracy. No significant dimension change has been recorded.
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ASME/JSME 2004 Pressure Vessels and Piping Conference
July 25–29, 2004
San Diego, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4682-2
PROCEEDINGS PAPER
Reactor Pressure Vessel of Tricastin Unit 1 Core Zone Inspection: Comparison of Non-Destructive Examination Results Among Two Core Area Inspections Performed in 1999 and in 2003
Karl Payraudeau,
Karl Payraudeau
Electricite´ de France, Saint-Denis Cedex, France
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Karim Zamoum,
Karim Zamoum
Electricite´ de France, Saint-Denis Cedex, France
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Thierry Pasquier
Thierry Pasquier
Intercontroˆle, Rungis Cedex, France
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Karl Payraudeau
Electricite´ de France, Saint-Denis Cedex, France
Karim Zamoum
Electricite´ de France, Saint-Denis Cedex, France
Thierry Pasquier
Intercontroˆle, Rungis Cedex, France
Paper No:
PVP2004-2977, pp. 133-136; 4 pages
Published Online:
August 12, 2008
Citation
Payraudeau, K, Zamoum, K, & Pasquier, T. "Reactor Pressure Vessel of Tricastin Unit 1 Core Zone Inspection: Comparison of Non-Destructive Examination Results Among Two Core Area Inspections Performed in 1999 and in 2003." Proceedings of the ASME/JSME 2004 Pressure Vessels and Piping Conference. Aging Management and License Renewal. San Diego, California, USA. July 25–29, 2004. pp. 133-136. ASME. https://doi.org/10.1115/PVP2004-2977
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