ML18153B294
| ML18153B294 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 08/16/1993 |
| From: | Bowling M VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 93-493, NUDOCS 9308250194 | |
| Download: ML18153B294 (17) | |
Text
- ' ' I e
e VIRGINIA. ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 August 16, 1993~
United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNITS 1 AND 2 EMERGENCY RESPONSE DATA SYSTEM DATA BASE UPDATES Serial No.
EE/TJK-CGL Docket Nos.
License Nos.93-493 RO 50-280 50-281 DPR-32 DPR-37 Modifications were recently made to the instrument ranges for the containment sump level (narrow range and wide range) and hydrogen analyzer inputs for Surry Units 1 and 2. The lower instrument limits were modified slightly to expand the range in order to prevent spurious alarms.
The changes, which were made to resolve recent Emergency Response Facility problem reports, are detailed in the Data Point Library (DPL) reference file sheets contained in Attachment 1 for Surry Units 1 and 2. provides revision summaries (change reports) for the affected points for Surry Units 1 and 2. The updated data base files, documented in Attachments 1 and 2, are also provided in the dBase IV format on Attachment 3.
If you have questions regarding this information, please contact us.
Very truly yours,
/fl/_ 11~
M. L. Bowling, Manager Nuclear Licensing & Programs Attachments:
- 1.
Updated Data Point Library Reference File Sheets for Surry Units 1 and 2
- 2.
Revision Summaries for Surry Units 1 and 2
- 3.
Updated DPL Data Base Files in dBase Format
- cc:
e U. S. Nuclear Regulatory Commission (Attachments 1 and 2)
Region II 101 Marietta Street, N. W.
Suite 2900 Atlanta, Georgia 30323 Mr. M. W. Branch (Attachments 1 and 2)
NRC Senior Resident Inspector Surry Power Station NUS Corporation I El Division (Attachments 1, 2, and 3)
P. 0. Box 59736 Idaho Falls, Idaho 83405 Attention: Mr. Tony LaRosa
e ATTACHMENT 1 UPDATED DATA POINT LIBRARY REFERENCE FILE SHEETS FOR SURRY UNITS 1 AND 2
DATE:
REACTOR UNIT:
DATA FEEDER:
NRG 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 SETPOINTS:
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: Surry UNIT: 1
. PWR DATA POINT LIBRARY REFERENCE FILE 08/02/93 SUl N/A CTMNT SMP WR LlDAOOlC CONTAINMENT WR SUMP LEVEL CONTAINMENT SUMP WR LEVEL A
FT 1 FT 58343 GALLONS 0.173 9.0 TNKBOT N/A p
2 AVERAGE - SEE SYSTEM DESCRIPTION RECIRC SPRAY SUMP-SEE SYSTEM DESCRIPTION VARIABLE N/A N/A N/A N/A The valid wide range signals are averaged (2 signals if all are valid).
If neither signal is valid, this point is marked invalid.
1-1 PRINTED
- 08/02/93 e
DATE:
REACTOR UNIT:
DATA FEEDER:
NRG 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 SETPOINTS:
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:
08/02/93 SUl N/A CTMNT SMP NR LlDA002C STATION: Surry UNIT: 1 PWR DATA POINT LIBRARY REFERENCE FILE CONTAINMENT NR SUMP LEVEL CONTAINMENT SUMP NR LEVEL A
INCH 1 IN= 2369 GALLONS 3.84 26.5 TNKBOT 280 GALLONS REMAIN AT ZERO POINT p
2 MAXIMUM - SEE SYSTEM DESCRIPTION CONTAINMENT SUMP VARIABLE N/A N/A N/A N/A Senses reactor containment sump level and provides a high level alarm.
The largest valid narrow range signal is used for this point.
If all signals are valid, 2 signals are considered.
If both signals are invalid, this point is marked invalid.
1-2 PRINTED
- 08/02/93
DATE:
REACTOR UNIT:
DATA FEEDER:
NRG 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 SETPOINTS:
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:
08/03/93 SUl N/A H2 CONG AlGWOOlC STATION: Surry UNIT: 1 PWR DATA POINT LIBRARY REFERENCE FILE CNTMT H2 CONCENTRATION CONTAINMENT HYDROGEN CONG A
PCT N/A
-0.3 10.0 N/A N/A p
2 AVERAGE -
SEE SYSTEM DESCRIPTION AUX BLDG 13' LVL VARIABLE N/A N/A N/A N/A Takes a sample of containment atmosphere and measures the hydrogen concentration in the sample.
The valid signals are averaged (2 signals if all are valid).
If none of the signals is valid, this point is marked invalid.
1-3 PRINTED
- 08/03/93
DATE:
REACTOR UNIT:
DATA FEEDER:
NRG 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 SETPOINTS:
NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:
NI DETECTOR POWER SUPPLY 08/02/93 SU2 N/A CTMNT SMP WR L2DA001C STATION: Surry UNIT: 2 PWR DATA POINT LIBRARY REFERENCE FILE CONTAINMENT WR SUMP LEVEL CONTAINMENT SUMP WR LEVEL A
FT 1 FT 58343 GALLONS 0.173 9.0 TNKBOT N/A p
2 AVERAGE - SEE SYSTEM DESCRIPTION RECIRC SPRAY SUMP-SEE SYSTEM DESCRIPTION VARIABLE N/A TURN-ON POWER LEVEL:
N/A INSTRUMENT FAILURE MODE:
N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:
LEVEL REFERENCE LEG:
UNIQUE SYSTEM DESC:
N/A The valid wide range signals are averaged (2 signals if all are valid).
If neither signal is valid, this point is marked invalid.
1-4 PRINTED 08/02/93.
- DATE:
REACTOR UNIT:
DATA FEEDER:
NRG 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 SETPOINTS:
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:
08/02/93 SU2 N/A CTMNT SMP NR L2DA002C STATION: Surry UNIT: 2 PWR DATA POINT LIBRARY REFERENCE FILE CONTAINMENT NR SUMP LEVEL CONTAINMENT SUMP NR LEVEL A
INCH 1 IN= 2369 GALLONS 3.84 26.5 TNKBOT 280 GALLONS REMAIN AT ZERO POINT p
2 MAXIMUM -
SEE SYSTEM DESCRIPTION CONTAINMENT SUMP VARIABLE N/A N/A N/A N/A Senses reactor containment sump level and provides a high level alarm.
The largest valid narrow range signal is used for this point.
If all signals are valid, 2 signals are considered.
If both signals are invalid, this point is marked invalid.
1-5 PRINTED*
08/02/93
DATE:
REACTOR UNIT:
DATA FEEDER:
NRG ERDS PARAMETER:
POINT ID:
PLANT SPEC POINT DESG:
GENERIG/GOND DESG:
ANALOG/DIGITAL:
ENGR UNITS/DIG STATES:
ENGR UNITS CONVERSION:
MINIMUM INSTR RANGE:
MAXIMUM INSTR RANGE:
ZERO POINT
REFERENCE:
REFERENCE POINT NOTES:
PROG OR SENS:
NUMBER OF SENSORS:
HOW PROCESSED:
SENSOR LOCATIONS:
ALARM/TRIP SETPOINTS:
NI DETECTOR POWER SUPPLY GUT-OFF POWER LEVEL:
NI DETECTOR POWER SUPPLY 08/03/93 SU2 N/A H2 GONG A2GW001G STATION: Surry UNIT: 2 PWR DATA POINT LIBRARY REFERENCE FILE GNTMT H2 CONCENTRATION CONTAINMENT HYDROGEN GONG A
PCT N/A
-0.3 10.0 N/A N/A p
2 AVERAGE - SEE SYSTEM DESCRIPTION AUX BLDG 13' LVL VARIABLE N/A TURN-ON POWER LEVEL:
N/A INSTRUMENT FAILURE MODE:
N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:
LEVEL REFERENCE LEG:
UNIQUE SYSTEM DESG:
N/A Takes a sample of containment atmosphere and measures the hydrogen concentration in the sample.
The valid signals are averaged (2 signals if all are valid).
If none of the signals is valid, this point is marked invalid.
1-6 PRINTED*
08/03/93 e
e ATTACHMENT 2 REVISION SUMMARIES FOR SURRY UNITS 1 ANO. 2
STATION: Surry UNIT: 1 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT CHANGED POINT L1DA001C AT 13:11 ON 08/02/93.
CHANGES WERE AS FOLLOWS:*
DATE:
WAS: 05/20/91 IS: 08/02/93 MINIMUM INSTR RANGE:
WAS: 0.43 IS: 0.173 2-1 PRINTED 08/02/9)*
e e
STATION: Surry UNIT: 1 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT CHANGED POINT L1DA002C AT 13:12 ON 08/02/93.
CHANGES WERE AS FOLLOWS:
DATE:
MINIMUM INSTR RANGE:
WAS: 05/20/91 IS: 08/02/93 WAS: 4.5 IS: 3.84 2-2 PRINTED*
08/02/93,
e
STATION: Surry UNIT: 1 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT CHANGED POINT AlGWOOlC AT 07:58 ON 08/03/93.
CHANGES WERE AS FOLLOWS:
DATE:
MINIMUM INSTR RANGE:
WAS: 05/20/91 IS: 08/03/93 WAS:. 0.0 IS: -0.3 2-3 PRINTED*
08/03/93.
e
STATION: Surry UNIT: 2 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT CHANGED POINT L2DA001C AT 13:14 ON 08/02/93.
CHANGES WERE AS FOLLOWS:
DATE:
MINIMUM INSTR RANGE:
WAS: 05/20/91 IS: 08/02/93 WAS: 0.43 IS: 0.173 2-4 PRINTED*
08/02/93 _
STATION: Surry UNIT: 2 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT CHANGED POINT L2DA002C AT 13:15 ON 08/02/93.
CHANGES WERE AS FOLLOWS:
DATE:
MINIMUM INSTR RANGE:
WAS: 05/20/91 IS: 08/02/93 WAS: 4.5 IS: 3.84 2-5 PRINTED*
08/02/9'3,.
STATION: Surry UNIT: 2 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT CHANGED POINT A2GW001C AT 07:59 ON 08/03/93.
CHANGES WERE AS FOLLOWS:
DATE:
MINIMUM INSTR RANGE:
WAS: 05/20/91 IS: 08/03/93 WAS: 0.0 IS: -0.3 2-6 PRINTED' 08/03/9'3..
e
ATTACHMENT 3 UPDATED DPL DATA BASE FILES IN dBASE IV FORMAT (Diskette to NUS Corporation / El Division)