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From Technical Specification to Examination results: The Story of Qualification for Belgian RPV Inspection

机译：从技术规格到检验结果：比利时RPV检验的资格故事

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In 1992, Electrabel, the Belgian utility, decided to use new qualified proceduresfor all mandatory In-service Inspections. For the Reactor Pressure Vessel, thequalification process was conducted through a close collaboration between thevendor (Intercontr?le) and a technical group formed by Electrabel (the Owner) andTractebel Energy Engineering (the Architect-Engineer), under review by theBelgian Safety Authorities.The whole qualification process, performed in an industrial context, has shownthe importance of various aspects : a review of the construction files and ofprevious ISI results; a detailed definition of the inspection objectives (defectsto be detected and level of characterization); a systematic verification of theNDE procedure performance, for each objective or situation; the feedback fromsite experience on procedure and qualification optimization; and a multidisciplinaryapproach.The paper presents how the initial inspection requirements and the methodology ofqualification were specified, by combining the rules of the ASME XI code and theEuropean Methodology for Qualification. It shows that the NDE procedures havebeen systematically improved during the qualification process and how theprocedure performance and limitations have been determined and demonstrated by anadequate combination of tests on blocks and technical justification.To conclude, the paper also states the lessons learnt from the first on-siteexperience of Reactor Pressure Vessel ISI with qualified NDE procedures.
机译：1992年，比利时公用事业公司Electrabel决定使用新的合格程序 用于所有强制性的在役检查。对于反应堆压力容器， 资格审查过程是通过 卖方（Intercontr？le）和由Electrabel（所有者）组成的技术小组，以及 Tractebel能源工程（建筑师-工程师），正在接受 比利时安全当局。 在工业环境中执行的整个认证过程已经表明 各个方面的重要性：审查施工文件和 先前的ISI结果;检验目标的详细定义（缺陷 被检测和表征水平）;系统验证 针对每个目标或情况的无损检测程序性能;来自的反馈 程序和资格优化方面的现场经验;和一个多学科的 方法。 本文介绍了如何进行初始检查的要求和方法 通过结合ASME XI规则和 欧洲资格认证方法。它表明NDE程序具有 在认证过程中得到了系统的改进，以及 程序的性能和局限性已由 块测试和技术依据的充分结合。 最后，本文还阐述了从第一个现场获得的经验教训 具有合格的NDE程序的反应堆压力容器ISI经验。

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