NL-09-1088, Emergency Response Data System (ERDS) Data Point Library Modification
| ML091910536 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 07/10/2009 |
| From: | Tynan T Southern Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| NL-09-1088 | |
| Download: ML091910536 (7) | |
Text
Tom Tynan Southern Nuclear Vice President Vogtle Operating Company, Inc.
7821 River Road Waynesboro. Georgia 30830 Tel 7068263151 Fax 7068263321 SOUTHERN A July 10, 2009 COMPANY Energy to Serve Your World" Docket No.:
50-425 NL-09-1088 U. S. Nuclear Regulatory Commission ATTI\\J: Document Control Desk Washington, D. C. 20555-0001 Vogtle Electric Generating Plant, Unit 2 Emergency Response Data System (EROS)
Data Point Library Modification Ladies and Gentlemen:
In accordance with the requirements of 10CFR50, Appendix E, Section VI, Item 3a, Southern Nuclear Operating Company is submitting changes to the Vogtle Electric Generating Plant Unit 2 Emergency Response Data System (EROS) data point library. Data points UV0403 (Steam Generator 1 Main Feedwater Flow),
UV0423 (Steam Generator 2 Main Feedwater Flow), UV0443 (Steam Generator 3 Main Feedwater Flow), and UV0463 (Steam Generator 4 Main Feedwater Flow) were revised as a result of the Unit 2 Measurement Uncertainty Recapture (MUR)
Power Uprate implementation during the Unit 2 fall 2008 refueling outage.
The changes were implemented on October 1,2008. However, it was not recognized until July 8, 2009 that the Nuclear Regulatory Commission had not been notified of the changes to the EROS data point library within 30 days of implementing the change as required by 10CFR50, Appendix E, Section VI, Item 3a. This deficient condition has been entered into the Vogtle Electric Generating Plant Condition Reporting System.
This letter contains no NRC commitments. If you have any questions, please advise.
Sincerely, T. E. Tynan Vice President - Vogtle TET/TMH/sdc
U. S. Nuclear Regulatory Commission Log:
Page 2
Enclosures:
Mark-up Changes to the VEGP Unit 2 EROS Data Point Library cc:
Southern Nuclear Operating Company Mr. J. T. Gasser, Executive Vice President Mr. T. E. Tynan, Vice President - Vogtle Ms. P. M. Marino, Vice President - Engineering RType: CVC7000 U. S. Nuclear Regulatory Commission Mr. L. A. Reyes, Regional Administrator Ms. D. N. Wright, NRR Project Manager - Vogtle Mr. M. Cain, Senior Resident Inspector - Vogtle
Vogtle Electric Generating Plant, Unit 2 Emergency Response Data System (EROS)
Data Point Library Modifications Enclosure Mark-up Changes to the VEGP Unit 2 EROS Data Point Library
Chapter 13 - Emergency Response Data System (EROS)
Date Reactor Unit Data Feeder NRC ERDS Parameter Point ID Plant Spec. Point Generic/Cond.
AnaloglDigital Engr. Units/Dig Engr. Units Minimum Instr.
Maximum lnstr.
Zero Point Reference Point Proc or Sens.
Number of Sensors How Processed Sensor Locations Alarm/Trip Setpoints NI Power Cut Off NI Power Turn On Instrument Failure Temp. Compo Level Reference Unique System
- t!20ID V02 N/A MN FD FL l/A UV0403 VALIDATED SOl FEEDWATER FLOWVENTURIS STM GEN I MAIN FEEDWATER FLOW A
KLB/HR
-12.0 to 4800.0 KLB/HR
-12.0 4800.0 N/A N/A P
2 VALIDATED AVERAGE FEEDWTR HEATR DISCH UPSTRM OF STM GEN I NONE N/A N/A N/A N
N/A Senses flow in main feedwater line to steam generator I. The average of the 2 valid feed flow signals is used for this point.
lfone of the inputs is invalid the other is used. Ifboth signals are invalid the result is marked invalid.
Appendix C Page 80 T:IConfigISpecsIX5AB051IPCDOCSIAX5AB05-00031 (VoI2)IChapter_13.doc
Chapter 13 - Emergency Response Data System (EROS)
Date Reactor Unit Data Feeder NRC EROS Parameter Point 10 Plant Spec. Point Generic/Cond.
AnaloglDigital Engr. UnitslDig Engr. Units Minimum Instr.
Maximum Instr.
Zero Point Reference Point Proc or Sens.
Number of Sensors How Processed Sensor Locations Alarm/Trip Setpoints NI Power Cut Off NI Power Turn On Instrument Failure Temp. Compo Level Reference Unique System
- @BI)
V02 N/A MN FD FL 2/8 UV0423 VALIDATED SG2 FEEDWATER FLOW VENTURIS STM GEN 2 MAIN FEEDWATER FLOW A
KLB/HR
-12.0 to 4800.0 KLB/HR
-12.0 4800.0 N/A N/A P
2 VALIDATED AVERAGE FEEDWTR HEATR DISCH UPSTRM OF STM GEN 2 NONE N/A N/A N/A N
N/A Senses flow in main feedwater line to steam generator 2. The average of the 2 valid feed flow signals is used for this point.
lfone of the inputs is invalid the other is used. lfboth signals are invalid the result is marked invalid.
Appendix C Page 81 T:\\ConfigISpecsIXSABOSIJPCDOCSIAXSABOS-00031 (VoI2)IChapter_13.doc
Date Reactor Unit Data Feeder NRC ERDS Parameter Point ID Plant Spec. Point Generic/Cond.
AnaloglDigital Engr. UnitslDig Engr. Units Minimum Instr.
Maximum Instr.
Zero Point Reference Point Proc or Sens.
Number of Sensors How Processed Sensor Locations Alarm/Trip Setpoints NI Power Cut Off NI Power Turn On Instrument Failure Temp. Compo Level Reference Unique System Chapter 13 - Emergency Response Data System (EROS)
- Q~&ID VOl N/A MN FD FL 3/C UV0443 VALIDATED SG3 FEEDWATER FLOWVENTURIS STM GEN 3 MAIN FEEDWATER FLOW A
KLB/HR
-12.0 to 4800.0 KLB/HR
-12.0 4800.0 N/A N/A P
2 VALIDATED AVERAGE FEEDWTR HEATR DISCH UPSTRM OF STM GEN 3 NONE N/A N/A N/A N
N/A Senses flow in main feedwater line to steam generator 3. The average of the 2 valid feed flow signals is used for this point.
lfone of the inputs is invalid the other is used. lfboth signals are invalid the result is marked invalid.
Appendix C Page 82 T:IConfigISpecsIX.5AB051/PCDOCSIAX5AB05-00031 (VoI2)IChapter_13.doc
Date Reactor Unit Data Feeder NRC EROS Parameter Point ID Plant Spec. Point Generic/Cond.
Analog/Digital Engr. Units/Dig Engr. Units Minimum Instr.
Maximum Instr.
Zero Point Reference Point Proc or Sens.
Number of Sensors How Processed Sensor Locations Alarm/Trip Setpoints NI Power Cut Off NI Power Turn On Instrument Failure Temp. Compo Level Reference Unique System Chapter 13 - Emergency Response Data System (EROS)
- ~
V02 N/A MN FD FL4/D UV0463 VALIDATED SG4 FEEDWATER FLOW VENTURIS STM GEN 4 MAIN FEEDWATER FLOW A
KLB/HR
-12.0 to 4800.0 KLB/HR
-12.0
4800.0 N/A N/A P
2 VALIDATED AVERAGE FEEDWTR HEATR DISCH UPSTRM OF STM GEN 4 NONE N/A N/A N/A N
N/A Senses flow in main feedwater line to steam generator 4. The average of the 2 valid feed flow signals is used for this point.
If one of the inputs is invalid the other is used. If both signals are invalid the result is marked invalid.
Appendix C Page 83 T:\\ConfigISpecs\\xSABOS\\lPCDOCS\\AXSABOS-00031 (VoI2)IChapter_13.doc