International Equipment Reliability Index (I-ERI) Subcommittee Update International ERWG Subcommittee Suzhou, China, September 2017 1
Provide an International Equipment Reliability Index which provides a stable platform for measuring key performance areas I-ERI Subcommittee Objectives Allow Benchmarking of worldwide ER performance I-ERI to utilise best practise identified from ERWG and utilities internal measures Work towards updating WANO PI manual for an automated I-ERI Issue an I-ERI guidance document 2
Christian Lundqvist, Ringhals AB Vattenfall Hiroyuki Hamano, WANO Toyko Centre Howard Whitaker, Nawah Energy Company I-ERI Subcommittee James Purss, EDF Energy Jiri Kovarik, CEZ, Temelin Kamil Houska, CEZ, Temelin Liu Xiaonian, CNNP Contributors in Suzhou Marko Leino, Fortum Loviisa Miroslav Zelenay, Bohunice NPP Wang Yibo, CNEA Yasuyuki Nakamura, WANO Toyko Centre Ji Duan, CGN 3
Summary Table for “Lagging” I-ERI Sub-Indicators • ERI Sub-Indicators • No. • Points • Data Type • Statio n / Unit Forced Loss Rate (WANO FLR) Agreed I-ERI Indicators – no changes proposed • Source WANO 1. 1 7 Lagging Unit Unplanned Total Scrams Per 7, 000 Hours Critical (WANO US 7) WANO 10 Lagging Unit 5 Lagging Unit 8 Lagging Unit Unplanned Shutdown LCO Entries ≤ 72 hours (in Last 3 months) Safety System Unavailability (WANO Indicators) INPO WANO 1. 2 2. 1 3. 1 • Summary Table for “Leading” I-ERI Sub-Indicators Deficient Critical Work Backlog (Online) INPO Deferral of Critical PM’s (as per ERWG rev 0 – Jan 16) INPO Critical PM’s Open in 2 nd Half of Grace INPO Work Week Critical Scope Survival INPO Long Range Planning Implementation Effectiveness INPO Age of Red & Yellow Systems INPO WANO Chemistry Performance (WANO CPI) 8 Leading Unit 4. 3 10 Leading Station 5. 1 10 Leading Station 12 Leading Station 6. 2 15 Leading Unit 7. 1 7 Leading Unit 4. 1 4. 2 6. 1 4
I-ERI document – group recommended no changes 2019 (minor typo updates required then issue on Nuclear Community) New proposed submeasure from Prague discussed Re-work – further work required in April 18 with Jan CC/SPV sub-measure – survey required to establish baseline Suzhou discussions I-ERI sub-measures reviewed for impact of different reactor types 2. 1 – Unplanned LCO entries 6. 2 – Red / Amber Systems (total number) Sub-measure 4. 2 – Deficient Critical Backlog – survey required to establish baseline Review of Loviisa I-ERI reporting tool and experiences EDF Energy HNB ERI versus I-ERI measure Guidance for deployment of I-ERI Best practise for R/A/G scoring thresholds for System Health 5
James – Post I-ERI doc on Nuclear Community (Oct 17) Marko – Present output of survey of baseline data for; Suzhou actions due for April 18 meeting LCO action conditions No. of Systems monitored per plant No. of Critical components versus deficient backlogs Liu – Present INPO baseline I-ERI data Jan – Present update on re-work sub-measure Christian – Present best practise outline for scoring of R/A/G System Health reports James – Present back WANO centre comments on I-ERI document 6
Action for everyone – due January 2018 We require a baseline data set to evaluate the scoring thresholds Please evaluate your plant against the I-ERI document Provide the sub-group your I-ERI score for a 12 month period of operation (quarterly) 7
Questions? 8
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