Title: Recent Work in ENIQ and Related Activities in Europe
Other Contributors: ERIKSSON ARNE
Citation: Proceedings of the 5th International Conference on NDE for Nuclear Pressurised Components p. 32-39
Publisher: OPOCE
Publication Year: 2007
JRC N°: JRC32839
URI: http://publications.jrc.ec.europa.eu/repository/handle/JRC32839
Type: Articles in periodicals and books
Abstract: ENIQ (the European Network for Inspection and Qualification) is a network of European nuclear utilities and other organisations working under the auspices of the European Commission's Joint Research Centre at Petten. It acts as a forum for the exchange of information and views among its members, and for the development and promotion of a harmonised European approach on matters relating to the in-service inspection of nuclear power plants. One of its main achievements to date has been the issue of the European Methodology for Qualification, setting out guidelines for qualifying inspections using a mixture of technical justification and practical test piece trials. This methodology has been widely adopted by nuclear utilities across Europe. At the last conference in this series, in London in December 2004, a paper was presented giving an overview of the history of ENIQ, covering the two main fields in which it works: inspection qualification and risk-informed in-service inspection (RI-ISI). This paper presents an update of progress made since that conference and our plans for future work. Progress since December 2004 has been in the following main areas: • Issue of the European Framework Document for RI-ISI, providing guidelines to utilities for developing their approaches to RI-ISI and for adapting already established approaches to the European environment. This represents a significant achievement by the ENIQ Task Group on Risk (TGR). The document acts as a parallel document in the RI-ISI area to the well-established European Methodology for Qualification. • Further work by the ENIQ Task Group on Qualification (TGQ) on the ENIQ Second Pilot Study. This is a mock qualification exercise of a nozzle-to-shell weld ultrasonic inspection, intended to explore the extent to which technical justification can reduce the need for practical test piece trials in inspection qualification. • Issue of ENIQ Recommended Practice 8 (RP8), on qualification levels and qualification approaches. This document describes a process by which the qualification requirements for a particular inspection can be linked to both the safety significance of the inspection and the difficulty or novelty of applying the proposed inspection technique. • Re-issue of ENIQ RP1, on influential and essential parameters. This RP has been simplified considerably since Issue 1, following feedback from users. In the next year or two, future activity is likely to be dominated by work in TGR to develop supporting documents to the European Framework Document for RI-ISI, probably as a series of RPs along similar lines to the existing RPs on various aspects of inspection qualification. Activities in the inspection qualification area are likely to focus on developing the link between inspection qualification and RI-ISI (in which some preliminary work has already started), revision of existing RPs and issue of new RPs as the need arises. The lessons learned from the Second Pilot Study are likely to provide important feedback here. The paper will also include some examples of the implementation of the ENIQ methodology in qualifications in European countries.
JRC Directorate:Energy, Transport and Climate

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