ML040550522
| ML040550522 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 02/12/2004 |
| From: | Rosalyn Jones Duke Energy Corp |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML040550522 (2) | |
Text
Duke IwPowere A Duke Energy Company February 12, 2004 R. A. JONES Vice President Duke Power 29672 / Oconee Nuclear Site 7800 Rochester Highway Seneca, SC 29672 864 885 3158 864 885 3564 fax U.S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, D.C. 20555
Subject:
Oconee Nuclear Station Docket Number 50-269, 50-270, 50-287 Emergency Response Data System (ERDS) 10CFR50, Appendix E, Section VI, 3a requires that any software change that affects the transmitted data points identified in the ERDS Data Point Library must be submitted to the NRC.
Due to an instrument failure at Unit 3, the ERDS parameter for Pressurizer Level (Temp Correct) is no longer valid. A change has been processed allowing use of the Pressurizer Pressure Corrected Level instead of Pressurizer Temperature Corrected Level to give the Pressurizer Level indications.
Current Point- 03E2275 (RC PZR LEVEL 1 TEMP CORRECTED)
New Point-03E2300 (RC PZR LEVEL 1 PRESS CORRECTED)
This is a temporary change that will be removed when the Pressurizer RTD is replaced during our upcoming outage in October of 2004.
Changes to Unit 3 Plant Spec. Point Descriptions have been made, effective 12/09/03.
The corrected page of the effected Data Point Library is attached for your information.
Changes are indicated by a sidebar.
If there are any questions regarding the Emergency Response Data System, please contact Ray Waterman at (864) 885-3825.
Sincerely, R. A. Jones Vice President Oconee Nuclear Station cc:
Louis Reyes, NRC/Regional Administrator, Region II Tom Kardaras/Office of Analysis & Evaluation Mel Shannon/Oconee Resident Inspector Lynne Saul/Scientech
'kZ-(Z www.duke-energy.com
Oconee Emergency Resp onse Data System DATE:
REACTOR UNIT:
DATA FEEDER:
NRC ERDS PARAMETER:
POINT ID:
PLANT SPEC POINT DESC:
GENERIC/COND DESC:
ANALOG/DIGITAL:
ENGR UNITS/DIG STATES:
ENGR UNITS CONV:
MINIMUM INSTR RANGE:
MAXIMUM INSTR RANGE:
ZERO POINT
REFERENCE:
REFERENCE POINT NOTES:
PROC OR SENS:
NUMBER OF SENSORS:
HOW PROCESSED:
SENSOR LOCATIONS:
ALARM/TRIP SET POINTS:
NI CUTOFF PWR LEVEL:
NI CUTON PWR LEVEL:
INST FAILURE MODE:
TEMP COMPENSATION:
LEVEL REF LEG:
UNIQUE SYSTEM DESC:
02/11/2004 oc3 N/A PRZR LEVEL o3e2300 A
INCHES 23.94 GAL/INCH 0
400 TNKBOT N/A S
1 N/A RB 1st Floor LOW=90 HIGH=365 N/A N/A LOW N
WET Value derived by Pzr Pressure and Pzr d/p transmitter calculations I