ML030220219
| ML030220219 | |
| Person / Time | |
|---|---|
| Site: | Beaver Valley |
| Issue date: | 01/16/2003 |
| From: | Bezilla M FirstEnergy Nuclear Operating Co |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| L-03-002 | |
| Download: ML030220219 (3) | |
Text
Beaver Valley Power Station Route 168 PO. Box 4 FirstEnergy Nuclear Operating Company Shippingport, PA 15077-0004 Mark B. Bezilla 724-682-5234 Site Vice President Fax 724-643-8069 January 16, 2003 L-03-002 U. S. Nuclear Regulatory Commission Attention: Document Control Desk Washington, DC 20555-0001
Subject:
Beaver Valley Power Station, Unit No. 1 Docket No. 50-334, License No. DPR-66 Emergency Response Data System (ERDS)
The enclosed ERDS Data Point Library (DPL) changes are being submitted as required by 10 CFR 50, Appendix E, Section VI.3.a.
The Mode 1 high alarm limits were increased to provide a reasonable value for the alarms during the entire fuel cycle, and the change to the Mode 2 high alarm limits was made in order to align the values closer to the Intermediate Range High Level Trip which is active in Mode 2. The changes have already been implemented on plant computers that provide data to the ERDS computer and consist of the following:
- 1. Intermediate Range Detector 1 Log Flux high alarm setpoint was changed from 9.OE-4 to 1.OE-03 amps (Mode 1) and from 7.OE-04 to 1.3E-04 amps (Mode 2)
- 2. Intermediate Range Detector 2 Log Flux high alarm setpoint was changed from 7.4E-4 to 1.OE-03 amps (Mode 1) and from 7.OE-04 to 1.3E-04 amps (Mode 2)
There are no regulatory commitments contained in this letter. If you have any questions concerning the DPL changes, please contact Mr. Larry R. Freeland, Manager, Regulatory Affairs/Performance Improvement at 724-682-5284.
Sincerely, Mark B. Bezilla Attachments c:
Mr. D. S. Collins, NRR Project Manager Mr. J. R. Jolicoeur, USNRC Incident Response Division
- Q9 Mr. D. M. Kern, NRC Sr. Resident Inspector Mr. H. J. Miller, NRC Region I Administrator
BEAVER VALLEY POWER BVI 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 Conversion:
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 Detector Power Supply Cut-off Power Level:
NI Detector Power Supply Turn-on Power Level.
Instrument Failure Mode:
Temperature Compensation For DP Transmitters:
Level Reference Leg:
Unique System Desc.:
STATION ERDS DATA POINT LIBRARY ERDS INPUT 12/18/2002 BV1 IPC NI-INTER-RNG N0035A INTERMEDIATE RANGE DET 1 LOG FLUX NUC INSTRUMENTS, INT RANGE A
AMP LOG Y = 8/5 (VOLTS)
-5 IOE-I1 10E-3 N/A N/A S
1 N/A SEE UNIQUE SYSTEM DESCRIPTION FIELD SEE UNIQUE SYSTEM DESCRIPTION FIELD 2/4 PWR RNG>I0%
3/4 PWR RNG<c0%
LOW N
N/A INTERMEDIATE RANGE LEVEL INDICATION FROM lOE-i1 TO 10E-3 AMPS CORRESPONDS TO ABOUT 10E-6 % TO 10E2 % FULL RATED POWER.
POWER RANGE LEVEL INDICATION WILL NOT COME ON SCALE UNTIL THE REACTOR POWER LEVEL RISES TO ABOUT 10E-5 AMPS INTERMEDIATE RANGE LEVEL.
(-1% FULL POWER).
N-35 (SEE ATTACHED NIS DETECTOR LOCATION DWG.)
OP MANUAL CHAPTER 2.
MODE 1 HIGH ALARM - 1.0E-03 AMP; MODE 2 HIGH ALARM = 1.3E-04 AMP; MODES 3-6 HIGH ALARM -
1.3E-04 AMP
BEAVER VALLEY POWER BV 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 Conversion:
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 Detector Power Supply Cut-off Power Level:
NI Detector Power Supply Turn-on Power Level:
Instrument Failure Mode:
Temperature Compensation For DP Transmitters:
Level Reference Leg:
Unique System Desc.:
STATION ERDS DATA POINT LIBRARY I
ERDS INPUT 12/18/2002 BVl IPC EXTRA4 N0036A INTERMEDIATE RANGE DET 2 LOG FLUX NUC INSTRUMENTS, INT RANGE A
AMP LOG Y = 8/5 (VOLTS)
-5 1OE-11 10E-3 N/A N/A S
1 N/A SEE UNIQUE SYSTEM DESCRIPTION FIELD SEE UNIQUE SYSTEM DESCRIPTION FIELD 2/4 PWR RNG>10%
3/4 PWR RNG<10%
LOW N
N/A INTERMEDIATE RANGE LEVEL INDICATION FROM 1OE-11 TO 10E-3 AMPS CORRESPONDS TO ABOUT 10E-6 % TO 10E2 % FULL RATED POWER.
POWER RANGE LEVEL INDICATION WILL NOT COME ON SCALE UNTIL THE REACTOR POWER LEVEL RISES TO ABOUT 10E-5 AMPS INTERMEDIATE RANGE LEVEL.
(
1 % FULL POWER).
N-36 (SEE ATTACHED NIS DETECTOR LOCATION DWG.)
OP MANUAL CHAPTER 2 MODE 1 HIGH ALARM = 1.CE-03 AMP; MODE 2 HIGH ALARM -
1.3E-04 AMP; MODES 3-6 HIGH ALARM -
1.3E-04 AMP