ML051040435
| ML051040435 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 04/06/2005 |
| From: | Olshan L NRC/NRR/DLPM/LPD2 |
| To: | Duke Energy Corp |
| Olshan L N, NRR/DLPM, 415-1419 | |
| Shared Package | |
| ML051040162 | List: |
| References | |
| TAC MC5895, TAC MC5896, TAC MC5897 | |
| Download: ML051040435 (18) | |
Text
,nergy Tsa RPS/ESPS Licensing Amendment Request Oconee Nuclear Station April 6, 2005
7Duke Agenda
- . Opening Remarks
- Project Status RPS/ESPS Modification
- . Diverse LPI actuation
.:* Discrepancy between TXS TR and SER
- 0 Risk-informed D3
- .* NRC Questions
- .: Closing Remarks 2
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Opening Remarks
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- Introductions
+ Purpose of Meeting & Expected Outcome
> Meeting Purpose
- NRC questions X Communicate details of proposed LAR
> Expected Outcome
- Address preliminary questions from NRC
- Good mutual understanding of proposed LAR and RPS/ES modification 3
Project Status
- Project Activities Completed
> 30% Owners Review of FANP
- Initial Scope Document
- Engineering Turnover
- Technical Issues Checklist (Multi-Discipline Interface Identifier)
- Project Change Order Reconciliation
- Design Document Red Marks
> Procedure Writers Training
- 3 Week Intensive training on TXS for procedure revisions 4
Project Status
- Upcoming Major Project Activities
> Beznau NPP Benchmark Trip - Mid July 2005
> FANP-NGL Hardware FAT in Germany - November 2005
> FANP-NGL TXS Equipment @ ONS - December 2005
> FANP-Alpharetta TXS FAT @ ONS - January thru March 2006
> FANP Lynchburg RCPPM & NI FAT @ ONS - January thru March 2006
> ONS SAT - April 2006 through September 2006 5
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ProjectStatus
- Upcoming Project Activities (Continued)
> Procedure Verification & Validation - August thru September 2006
> Implementation - October thru November 2006
> Post Implementation Testing - Late November 2006
> Unit 1 Return to Service - Early December 2006 V: Numerous Internal Project Deliverables Through April 2006 6
L nerr rRPS/ESPS Mod.
- .* Modification Description
> Replacement of Analog Bailey RPS/ES with Digital FANP TXS
> Replacement of some analog/solid state input signal components (RCPPM, NI modules)
- . Modification Scope Review
> R x R - 9 RPS Cabinets, 7 ES Cabinets
> Delete ES Bailey RZ Module interface panels
> Add ES Component Status Panels
> Add ES Channel Trip/Reset Pushbutton Station
> Add, Relocate some ES actuated component operator control interfaces
> Additional Redundancy for RCPPM
> NI Recorder replacement (Units I & 2)
7Duke r~~er, Vy1 RPS/ES Mod. (cont)
- ° FMEA
> Reliability Analysis for FANP TXS - April 05
> FMEA for FANP TXS underway
> Final FMEA for modification - December 05
- Instrument changes
> No field sensor replacements planned as part of RPS/ES modification
> Revision to instrumentation loop accuracy calculations underway 8
7Duke
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RPS/ES Mod. (con t.)
- Mechanical changes
> Verification of acceptable heat loading from new TXS, RCPPM to Control Room and Cable Room underway
> Verification of acceptable heat rise in new TXS cabinetry included in FAT and post-implementation testing
> Verification of SBO Analyses 9
RPS/ES Mod. (cont)
- Electrical changes
> System cabling requirements evaluation
> Power systems loading analysis
> Human Factors evaluation underway for Control Room changes
> Modification documentation changes underway V:
Civil changes New cabinet seismic mounting design underway Cable tray and conduit installation evaluation underway Review of seismic qualification of non-TXS equipment 10
1 Dukre RPSIES Mod. (con t)
- Design criteria
> Electrical separation
> Cable and wiring Separation
> Use of fiber optics for Inter-Channel connections
- Functional criteria
> Equipment Specification Revision 1 approved - March 2005
> Functional Requirements Specification approved - March 2005
> Software Requirements Specification approval - August 2005 11
,ergy RPS/ES Mod. (cont.)
+* PRA
> PRA Input information development underway
.* UFSAR Summary
> UFSAR Changes in Draft (Red Marked) Stage
- Design Basis Documentation
> DBD Changes in Draft (Red Marked) Stage 12
4 HEDuke ra7uirre Diverse LPI Actuation 1
- + Provided diverse LPI actuation design requirements in November 17, 2004 meeting
- NRC concurred with design requirements
- Duke approval of FANP proposed design strategy - March 2005
- . Duke to provide additional details by June 2005 13
4 l ^Duke 1301h~
i uerg Discrepancy between TXS TR and SER 7, t II _...
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- + In one location, TXS Topical Report could be read as indicating that invariable data is stored in the EEPROM and is subject to cyclical redundancy checks (CRCs)
- TXS SER essentially repeats this
- + No invariable (Non Changeable Parameter) data is stored in the EEPROMs
D Duke
~er9 Risk-informed D3
- Duke performed deterministic D3 assessment per BTP HICB-19 guidelines
°:
New EPRI guideline provides risk-informed method of performing parts of or all of D3 assessment
- Duke plans to submit by July 2005 and request approval within a year
- Upon approval, Duke would discontinue design/installation of diverse LPI actuation 15
Y Duke NRC Questions V> Informal NRC questions received March 30, 2005
- . Plan to provide initial response electronically
- .* Follow-up with docketed response
- 4:
Discussion of NRC Questions 16
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. y.I Closing Remarks 4+ Closing Remarks 17
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V A Technical Specification Change
......"i If-
¢4Combine current and proposed TS requirements by using qualifiers and notes
- >Eliminate 12 hour1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> Channel Checks
-4Extend Channel Functional Test Intervals to 18 months 18