International Equipment Reliability Index (I-ERI) Subcommittee Update International ERWG Subcommittee Budapest, April 2016 1
James Purss – (EDF – UK) Miroslav Zelenay – (Slovenske elektrarne – Slovakia) Alberto Porras – (CNAT) Marko Leino (Loviisa Finland) I-ERI Subcommittee Team in Budapest Jane Antoine (ERWG chair) Susan Van Wyk (ESKOM – South Africa) Kenny Christian (INPO) Mark White (INPO – USA) Jan Sinke (Borselle) Fernando Mirallas (ANAV (Vandellos)) Ulrich Mezui – (EDF – France) Vanessa Kessen (Electrabel - Belgium) Lubos Cvrcek (CEZ – Czech Republic) 2
Provide an International Equipment Reliability Index which provides a stable platform for measuring key performance areas Allow Benchmarking of worldwide ER performance I-ERI Subcommittee I-ERI to utilise best practise identified from ERWG and utilities internal measures Objectives Work towards updating WANO PI manual for an automated I-ERI Publish a guidance document summarising work (Revision 001 currently on Nuclear Community) 3
ERI Sub-Indicators Forced Loss Rate (WANO Definition – 18 month Running Average) (FLR) Phase 1 I-ERI Indicators Unplanned Total Scrams Per 7, 000 Hours Critical (US 7) Unplanned Shutdown LCO Entries (≤ 72 hrs) (in Last 3 months) – Proposal to extend period to smooth averages Safety System Performance (SSP 1, 2 and 5) Work Week Scope Survival – Align to ERWG rev 000 - Proposal to extend period to smooth averages Chemistry Effectiveness (CPI) No. Data Type 1. 1 Lagging 1. 2 Lagging 2. 1 3. 1 5. 1 Lagging Leading 7. 1 Leading 4
ERI Sub-Indicators Proposed new I -ERI Indicators Operator Work Arounds – to be further reviewed Deficient Critical Work Backlog (On-line) (as per ERWG rev 000) Deferral of Critical PM’s (as per ERWG rev 000) Data Type 2. 2 Lagging Leading 4. 2 No. 4. 3 Leading Critical PM’s Open in 2 nd Half of Grace (as per ERWG Leading 4. 4 rev 000) Age of Red & Yellow Systems (as per ERWG rev Leading 6. 2 000) PM Change Request Backlog (consider adopting Leading previous revision from ERWG circa 2009 – PM 8. 1 Program Bases measure) 5
ERI Sub-Indicators Quarterly Forced Loss Events I-ERI Indicators not to be used AP-913 Consequential Failure Events Unmitigated Single Point Vulnerability (SPV) Maintenance Rework – potential sub-committee area? Plant Health Committee Effectiveness (PHCE) – potential sub-committee area? Critical Work Backlog (outage or on-line) 6
12 sub-measures considered appropriate at this time for the I-ERI 5 lagging sub-measures (27 points – 42% of total) Path Forward 7 leading sub-measures (37 points – 58% of total) Publish updated Guidance document with proposed measures Liaise with WANO to explore options to create new Performance Indicators - update to MN 2014 -2 WANO PI Reference Manual Perform Benchmarking of all members for other potential submeasures Collect further data from utilities to establish scoring threshold 7
Questions? 8
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