ML20154H963

Informs That Mods to Eight ERDS Points Have Been Implemented at North Anna Power Station to Reflect Changes in Instrument Ranges for Eight Radiation Monitoring Points.Changes Detailed in Data Point Library Ref File Forms Attached

ML20154H963
Person / Time
Site:	North Anna
Issue date:	10/08/1998
From:	Mccarthy J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
98-600, NUDOCS 9810150119
Download: ML20154H963 (22)

Text

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l Vincisir Ei.ECTRIC ANI) POWER Cmil'ANY Riciisios s), Vinoisir 23ai

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October 8, 1998 l

United States Nuclear Regulatory Commission Serial No.:

98-600 Attention: Document Control Desk NLOS/MM R0 Washington, D.C. 20555-0001 Docket Nos.:

50-338/339 License Nos.: NPF-4/7 Gentlemen:

VIRGINIA ELECTRIC AND POWER COMPANY NORTH ANNA POWER STATION UNITS 1 AND 2 EMERGENCY RESPONSE DATA SYSTEM DATABASE UPDATES Modifications to eight Emergency Response Data System (ERDS) points have been implemented at North Anna Power Station to reflect changes in the instrument ranges for l

eight radiation monitoring points. The changes are detailed in the Data Point Library (DPL) reference file forms provided in Attachment 1. Attachment 2 provides the revision summary (change report) and Attachment 3 is the ERDS database in dBase format on diskette.

No new commitments are intended by this letter. If you have any questions concerning these results, please contact us.

Very truly yours, i

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M rt ', Manager uclear Lice sing and Operations Sup \\ ort

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Attachments 1.

North Anna Updated Data Point Library Sheets 2.

Revision Summary a

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3.

North Anna Updated ERDS Database in dBase format on diskette O

9810150119 981000 PDR ADOCK 05000338 F

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cc:

U.S. Nuclear Regulatory Commission Region 11

• Atlan'ta Federal Center 61 Forsyth St., SW Suite 23 T85 Atlanta, Georgia 30303-3415 Mr. M. J. Morgan l-NRC Senior Resident inspector l

North Anna Power Station r

Scientech, Inc. (Attachments 1 and 2 plus dBase diskette) 1690 International Way Idaho Falls, Idaho 83402 Attention: Mr. Tony LaRosa l

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ATTACHMENT 1 UPDATED DATA POINT LIBRARY SHEETS NORTH ANNA POWER STATION UNITS 1 AND 2 e

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STATION: North Anna

' PRINTED UNIT: 1 09/30/1998 PWR DATA POINT LIBRARY REFERENCE FILE DATE:

09/30/1998 REACTOR UNIT:

NA1 DATA FEEDER:

N/A NRC ERDS PARAMETER:

MAIN SL 1/A POINT ID:

R1RM201C PLANT SPEC POINT DESC:

MS LINE A RAD MON (170)

GENERIC /COND DESC:

STM GEN A STEAM LINE RAD LEVEL ANALOG / DIGITAL:

A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A-MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES:

N/A PROC OR SENS:

P NUMBER OF SENSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

MN STM SAFETY VLV RISER - M.S. VLV HOUSE ALARM / TRIP SETPOINTS:

VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM DESC:

Continuously monitors the 32 inch A main steam safety line indicates radiation level.

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09/30/1998 REACTOR UNIT:

NA1 DATA FEEDER:

N/A NRC EROS PARAMETER:

MAIN SL 2/B POINT ID:

R1RM202C PLANT SPEC POINT DESC:

MS LINE B RAD MON (171)

GENERIC /COND DESC:

STM GEN B STEAM LINE RAD LEVEL ANALOG / DIGITAL:

A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES:

N/A PROC OR SENS:

P NUMBER OF SENSORS:

1

'HOW PROCESSED:

EXPONENTIATED VALUE OF LCCARITHMIC INPUT SENSOR LOCATIONS:

MN STM SAFETY VLV RISER - M.S. VLV HOUSE ALARM / TRIP SETPOINTS:

VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVELt N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM DESC:

Continuously monitors the 32 inch B main steam safety line and indicates radiation level.

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STATION: North Anna PRINTED UNIT: 1 09/30/1998 PWR DATA POINT LIBRARY REFERENCE FILE DATE:

09/30/1998 REACTOR UNIT:

NA1 DATA FEEDER:

N/A NRC ERDS PARAMETER:

MAIN SL 3/C POINT ID:

R1RM203C PLANT SFEC POINT DESC:

MS LINE C RAD MON (172)

GENERIC /COND DESC:

STM GEN C STEAM LINE RAD LEVEL ANALOG /CIGITAL:

A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES:

N/A PROC OR SENS:

P NUMBER OF SENSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

MN STM SAFETY VLV RISER - M.S. VLV HOUSE' ALARM / TRIP SETPOINTS:

VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A HI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM DESC:

Continuously monitors the 32 inch C main steam safety line and indicates radiation level.

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REACTOR UNIT:

NAl DATA FEEDER:

'N/A NRC ERDS PARAMETER:

- EFF GAS RAD POINT ID:

R1RM204C PLANT SPEC POINT DESC:

AUX STM LINE RAD MON (176)

GENERIC /COND DESC:

RADIOACTIVITY OF RELEASED GASES ANALOG / DIGITAL:

A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+9 ZERO POINT

REFERENCE:

N/A REFERENCE ?OINT NOTES:

N/A PROC OR SENS:

P NUM3ER OF SENSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

TURBINE-DRIVEN AUX FEED PUMP EXHAUST ALARM / TRIP SETPOINTS:

VARIABLE HI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM DESC:

Continuously monitors the radiation level in the turbine-driven auxiliary feed pump exhaust

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turbine).

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1 NORTH ANNA UNIT 2 UPDATED DATA POINT LIBRARY SHEETS I

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v STATION: North Anna PRINTED UNIT: 2 09/30/1998 PWR DATA POINT LIBRARY REFERENCE fit,E DATE:

09/30/1998 REACTOR UNIT:

NA2 DATA FEEDER:

N/A NRC ERDS PARAMETER:

MAIN SL 1/A

-POINT ID:

R2RM201C PLANT SPEC POINT DESC:

'MS ?TNE A RAD MON (270)

GENERIC /COND DESC:

STF GF M A STEAM LINE RAD LEVTL ANALOG / DIGITAL:

A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES:

N/A PROC OR SENS:

P NUMBER OF SENSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

MN STM SAFETY VLV RISER - M.S. VLV HOUSE ALARM / TRIP SETPOINTSt VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A NI DETECTOR POWER SUPPLY TURN-OH POWER LEVEL:

./A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM DESC:

Continuously monitors the 32 inch A main steam safety line and indicates radiation level.

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-09/30/1998 PWR DATA POINT LIBRARY REFERENCE FILE DATE:

09/30/1998 REACTOR UNIT:

NA2 DATA FEEDER:

N/A NRC ERDS PARAMETER:

MAIN SL 2/B POINT ID:

R2RM202C PLANT SPEC POINT DESC:

MS LINE B RAD MON (271)

GENERIC /COND DESC:

STM GEN B STEAM LINE RAD LEVEL ANALOG / DIGITAL:

A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO DOINT

REFERENCE:

N/A REFERENCE POINT NOTES:

N/A PROC OR SENS:

P NUMBER OF SENSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

MN STM SAFETY VLV RISER - M.S. VLV HOUSE ALARM / TRIP SETPOINTSi VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

.N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM OESC:

Contir.cously monitors the 32 inch B main steatn safety line and indicates radiation level.

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STATION: North Anna' PRINTED ~

UNIT: 2 09/30/1998 PWR DATA POINT LIBRART REFERENCE FILE.

DATE:

09/30/1998 REACTOR UNIT:

LIA2 DATA FEEDER:

N/A NRC ERDS PARAMETER:

MAIN SL 3/C POINT ID:

R2RM203C PLANT SPEC POINT DESC:

MS LINE C RAD MON (272)

GENERIC /COND DESC:

STM GEN C STEAM LINE RAD LEVEL

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A ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

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MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES:

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PROC.OR SENS:

P NUMBER OF SENSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

HN STM SAFETY VLV RISER - M.S. VLV HOUSE ALARM / TRIP SETPOINTS:

VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

-N/A UNIQUE SYSTEM DESC:

Continuously monitors the 32 inch C main steam safety line and indicates radiation level.

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v STATION: North Anna PRINTED UNIT: 2 09/30/1998 PWR DATA POINT LIBRARY REFERENCE FILE DATE:

09/30/1998 REACTOR UNIT:

NA2 DATA FEEDER:

N/A NRC ERDS PARAMETER:

EFF GAS RAD POINT ID:

R2RM204C PLANT FPEC POINT DESC:

AS LINE RADIATION MONITOR GENERIC /COND DESC:

RADIOACTIVITY OF RELEASED GASES ANALOG / DIGITAL:

A' ENGR UNITS / DIG STATES:

MR/HR ENGR UNITS CONVERSION:

N/A MINIMUM INSTR RANGE:

0.03981 MAXIMUM INSTR RANGE:

0.1259E+8 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES:

N/A PROC OR SENS:

P NUMBER OF SEkiSORS:

1 HOW PROCESSED:

EXPONENTIATED VALUE OF LOGARITHMIC INPUT SENSOR LOCATIONS:

TURBINE-DRIVEN AUX FEED PUMP EXHAUST ALARM / TRIP SETPOINTS:

VARIABLE NI DETECTOR POWER SUPPLY CUT-OFF POWER LEVEL:

N/A NI DETECTOR POWER SUPPLY TURN-ON POWER LEVEL:

N/A INSTRUMENT FAILURE MODE:

N/A TEMPERATURE COMPENSATION FOR DP TRANSMITTERS:

LEVEL REFERENCE LEG:

N/A UNIQUE SYSTEM DESC:

Continuously monitors the radiation level in the turbine-driven auxiliary feed pump exhaust (" Terry

• turbine).

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ATTACHMENT 2 REVISION

SUMMARY

NORTH ANNA POWER STATION UNITS 1 AND 2 4

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1 STATION: North Anna PRINTED UNIT: 1 09/10/1998 PWR DATA POINT LIBRARY REFERENCE FILE

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CHANGED POINT R1RM201C AT 10:31 ON 09/30/1998. CHANGES WERE AS FOLLOWS:

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WAS: 03/21/1991 IS: 09/30/1998 l

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MINIMUM INSTR RANGE:

WAS: 3.162E-2 r

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WAS: 1.0E+7 IS: 0.1259E+8 i

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PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT' CHANGEO POINT R1RM202C At 10:32 ON 09/30/1998. CHANGES WERE AS EVLLOWS:

DATEt WAS: 03/21/1991 IS: 09/33/1998 MINIMUM INSTR RANGE:

WAS: 3.162E-2 IS: 0.03981 MAXINUM INSTR RANGE:

WAS: 1.0E+7 IS: 0.1259E+8 2

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STATION: North Anna PRINTED UNIT:

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.i CHANGED POINT R1RM203C AT 10:33 ON 09/30/1998. CHANGES WERE AS FOLLOWS!

6 DATE:

WAS: 03/21/1991 IS: 09/30/1998 MINIMUM INSTR RANGE:

WAS: 3.162E-2 IS: 0.03981 MAXIMUM INSTR RANGE:

WAS: 1.0E+7 IS: 0.1259E+8 3

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DATE WAS: 03/21/1991 IS: 09/30/1998 NINIMUM INSTR RANGE:

WAS: 6.31E-5 IS: 0.03981 MAXIMUM INSTR RANGE:

WAS: 1.0E+4 IS:'O.1259E+8

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1 STATION: North Anna PRINTED UNIT: 2 09/30/1998 PWR DATA POINT LIBRARY REFERDJCE FILE t

CHANGE REPORT CHANGED POIPTT R2RM201C AT 10:35 ON 09/30/1998. CHANGES WERE AS FOLI4WS:

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WAS: 03/21/1991 IS: 09/30/1998 MINIMUM INSTR RANGE:

WAS: 3.162 E-2 IS: 0.03981 9

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WAS: 1.0E+7 IS: 0.1259E+8 b

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CHANGED POINT R2RM202C AT 10:36 ON 09/30/1998. CRANGES WERE AS FOLLOWS:

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WAS: 03/21/1991 L

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WAS: 3.162E-2

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WAS: 1.0E+7 IS: 0.1259E+8 I

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'09/30/1998 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT' CHANG 8D POINT R2RM203C AT 10:37 ON 09/30/1998. CHANGES WERE AS FOLLOWS:

DATE:

WAS:.03/21/1991 IS: 09/30/1998 MINIMUM INSTR RANGE:

WAS: 3.162E-2 IS: 0.03981 MAXIMUM INSTR RANGE:

WAS: 1.0E+7 IS: 0.1259E+8 I

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4 STATION: North Anna PRINTED UNIT: 2 09/30/1998 PWR DATA POINT LIBRARY REFERENCE FILE CHANGE REPORT s

CHANGED POIKT R2RM204C AT 10:38 ON 09/30/1998. CHANGES WERE AS FOLLOWS:

DATE:

WAS: 03/21/1991 IS: 09/30/1998 MINIMUM INSTR RANGE:

WAS: 6.31E-5' IS: 0.03981 l

MAXIMUM INSTR HANGE:

WAS: 1.0E+4 IS: 0.1259E+8 I

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