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Construction Inspection Programme YTV 4.6.1

Construction Inspection Programme YTV 4.6.1. Dương Quoc Hung, Ph.D VARANS Chief Inspector Ha Noi 10/2012. Operating license Government Decision STUK’s safety assessment on the technical and organisational aspects of the as build plant. Operating License. Construction License

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Construction Inspection Programme YTV 4.6.1

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  1. Construction Inspection ProgrammeYTV 4.6.1 Dương Quoc Hung, Ph.D VARANS Chief Inspector Ha Noi 10/2012 Thanh tra

  2. Operating license • Government Decision • STUK’s safety assessment on the technical and organisational aspects of the as build plant Operating License • Construction License • Government Decision • STUK’s Safety assessment on the acceptability of Technical principles and requirements of the plant • Issued in February 2005 for Olkiluoto 3 Construction Construction License • Construction: • Review and approval of the detailed design • Oversight of manufacturing and construction Bidding & site preparation Nuclear safety Energy policy Decision in Principle Feasibility studies (by utility) • Decision in Principle: Political debate on whether using nuclear energy is for the overall good of society • Government decision and Parliament ratification/rejection • STUK’s preliminary safety assessment • Issued in May 2002 for Olkiluoto 3 • Recently issued in July 2010 for Olkiluoto 4 and Fennovoima 1 Environmental Impact Assessment Licensing steps in Finland

  3. Inspections of mechanical components Construction Plan Construction Inspection Installation Construction Inspection Comm.inspection, phase 1 Comm.inspection, phase 2 In-service inspections, periodic inspection program, ... Design Operation Installation Fabrication System comm.

  4. Inspections during construction on structures and components To verify QA and QC results and activities of manufacturer, vendor and licensee - product conformity Defined in regulatory guides Inspection organizations used in lower safety classes Inspections on licensee’s performance within the Construction Inspection Program To verify the adequacy of project management, safety assessment, QA/QC programmes, etc. - performance conformity Construction Inspections - STUK objectives • Inspections during construction can be divided to two categories

  5. Review and approval of detailed design documentation for systems structures and components (SSCs) Before start of construction or manufacturing Oversight of and inspections on manufacturing and construction to verify product conformity (QA and QC activities of manufacturer, vendor and licensee) Resident inspectors on site (complemented with staff from HQ) Regular visits at the component manufacturing sites Assessment of licensee performance to verify the adequacy of project management, safety assessment, QA/QC programmes, etc. Inspections within the construction inspection programme Quality of the submitted regulatory documentation Resident inspectors at site Assessment of the performance of the parties responsible for design, construction and manufacturing Audits, inspection visits, manufacturing and construction oversight, meetings - (CIP) Have to learn more details and neesds on the job training!!! Duong Q.H Principles for Regulatory Oversight during construction

  6. Construction Inspection Programme - Goals of the CIP inspections • Licensee has adequate resources • Licensee has control on the project (site, manufacturing, vendor, subcontracting etc.) • Licensee has systematic processes and procedures in place for processing safety issues (design review and approval process) • Licensee’s QA/QC programmes are functioning ensuring performance and product conformity • Licensee is getting prepared for commissioning and operation of the plant

  7. Construction Inspection Programme - General arrangements • An overall inspection program for the construction has been established defining inspection areas and responsibilities (YTV 4.6.1) • More detailed six-monthly ( VARANS – annual plan) plans for execution of the program will be established • Inspection areas and main topics • detailed schedule for inspections • enables adjustability to project schedule and phasing (proactivity) • 10-15 inspections annually • Inspection team typically 2-4 persons – resident inspector usually participates • Duration of the inspection typically 1-2 days. In General: The same manner for VARANSconducting ispections. (DQH)

  8. Construction Inspection Programme - Inspection areas 1/2 • Main operations such as: • management and processing of safety matters • management system and main processes • administration of resources and skills. Need in practices (DQH comment) • Procedures for operating processes and records (by technical area if necessary), such as: • project quality assurance • operating personnel training • utilisation of Probabilistic Risk Assessment • inspection procedures • document management • radiation safety.

  9. Construction Inspection Programme - Inspection areas 2/2 • Inspection of the following issues is generally combined with inspections carried out under the Operating Inspection Programme: • emergency response arrangements • arrangements for security • fire protection • processing of wastes. • In addition STUK can also focus inspections on other issues/subject areas at its discretion • STUK can also carry out inspections without prior notification to the licensee. (Varans can do the same with some limitations!)

  10. Construction Inspection Programme – six-monthly plan • STUK’s regulatory control project manager drafts a six-monthly plan (usually Varans Chief inspector drafts annual inspection plan-DQH comment) • drafting of the six-monthly plan is based on the proposals of the sub-project managers responsible for inspections • Project Manager ensures that two consecutive six-monthly programmes covers all of the inspection areas • the plan presents the topic of the inspection, the week the inspection will be carried out, the person responsible for the inspection as well as the resident inspector appointed to the inspection • the plan is approved by Nuclear Reactor Regulation’s Director. • the plan must be ready a month before the start of each period and is submitted to licensee’s contact person by email. (almost the same in Varans)

  11. Construction Inspection Programme – carrying out the inspection • The inspection is carried out in accordance with the inspection plan • the inspection plan is gone though at the start-up meeting and the practical arrangements during the inspection are agreed. Deviations from the inspection plan are to be shown in protocol (lack in Varans procceduress) • during the inspection, people can be divided into groups and hold joint meetings for the inspection group • the objective of the inspection is to assess the appropriateness and adequacy of the licensee’s procedures in respect of the inspection area and the requirements stipulated • The methods of assessing procedures are interviews, monitoring the operation in practice as well as STUK’s own tests for the focus area. STUK’s assessment of the procedures must always be based on an assessment of their application in practice. • The inspection findings and the consequent requirements are recorded in the TARKKA system and are explained at the final meeting by the person responsible. • The requirements are monitored and closed in the TARKKA system.

  12. Experience - Construction Inspection Programme • Assessment of licensee performance to verify the adequacy of project management, safety assessment, QA/QC programmes, etc. • possibility to evaluate and influence timely on licensee’s performance, organisation, management, resources, processes • basis of requirements for inspection areas not as well defined as for SSCs (subjectivity of assessment)

  13. Example - results of OL3 Construction Inspection Program in 2011 • STUK performed 14 inspections in 2011 under CIP and gave 35 requirements. General findings were • Project has set in force number of application notes that differ from accepted project procedures. TVO don’t have practices or guidance how to introduce abnormal procedures or make the safety evaluation of the consequences. • TVO has delivered design documents to STUK even there is remarkable technical or quality issues open between the consortium and TVO. Content of TVO’s cover letters have been insufficient. • When evaluating the level of the safety culture at the site, TVO don’t utilize all possible sources like non-conformances or events at site (but more rely on surveys). • Control of the open issues (from manufacturing, installation phases) is insufficient – project don’t have usable common management system for open issues. • AREVA don’t have human resources to audit contractors at site.

  14. Joint activities at OL3 Inspection team start the task Thanh tra

  15. Joint activities at OL3 Inspection team conducting the task Thanh tra

  16. Joint activities at OL3 Inspection team discussing the results and preparing the report Thanh tra

  17. The Results of Activities T&TC • 1. Draft of Internal Procedures for VARANS Project manangement. (in English) • ..\39. STUK T_9.2012\VN Regulation on Project Management.doc • 2. Draft of VARANS Construction Inspection Programme. (in English) • ..\39. STUK T_9.2012\Draft Construction Inspection Program_VARANS.03.10.2012.doc Thanh tra

  18. Xin chân thành cảm ơnThank you for you attention! QUESTIONS AND COMMENTS? Thanh tra

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