ML20059K468

Provides Supplemental Info Re Emergency Response Data Sys (Erds).Data Transmitted by Util ERDS Will Have Quality Tag of 4 & Point Identification for ERDS Renamed

ML20059K468
Person / Time
Site:	Davis Besse
Issue date:	09/14/1990
From:	Shelton D TOLEDO EDISON CO.
To:	NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM)
References
1851, NUDOCS 9009240014
Download: ML20059K468 (4)

Text

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TOLEDO EDISON

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DONALD C. SHELTON

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Docket Number 50-346 License Number NPF-3 Serial Number 1851 Septetaber 14, 1990 g

United States Nuclear Regulatory Commission Document Control Desk Vashington, D. C. 20555

. Subj ec t s : Supplemental Information Regarding the Emergency Response Data

. System (ERDS)

Gentleten:

Preliminary testing of the ERDS for the Davis-Besse Nuclear Power Station was conducted with the NRC ERDS contractor on August 15 and 17, 1990. This preliminary te" ting was successfully completed and Toledo Edison is now prepared to establish a mutually acceptable schedule for final testing of the' ERDS.

During preliminary testing, the ERDS contractor requested that Toledo Edison

-revise one of the Data Point Library (DPL) Reference Files which were submitted under Toledo Edison letter Serial Number 1771, dated February 21, 1990. This revision involves renaming the point identification for ERDS parameter " TEMP CORE EX". The reviced file is attached, with revision bars indicating.the portions of the file that were changed.

In' addition, the ERDS aontractor requested that Toledo Edison verify the quality tag associated with the data provided by the ERDS. All data transmitted by the Toledo Edison ERDS vill have a quality tag of 4 (no quality indicator available). The Toledo Edison ERDS vill be providing non-validated data.

0?aC7 9009240014 900914 PDR ADOCK 050003461.-l F PNV P-THE TOLEDO EOtSON COMPANY EDISON PLAZA 300 MADISON AVENUE TOLEDO, OHIO %352 pol ..

, Dock 0t Number 50-346 License Number NPF-3 Serial Number 1851 Page 2 should you have any questions or require any additional information, please I contact Mr. R. V. Schrauder, Nanager - Nuclear Licensing, at (419) 249-2366.

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M AVA/mmb Attachment  !

cci P. M. Byron, DB-1 NRC Senior Resident Inspector A. B. Davis, Regional Administrator, NRC Region III E. L. Jordan, Director, Office for Analysis and Evaluation of Operational Data

-T. P. LaRosa, NUS Corporation, EI Division M. D. Lynch, DB-1 NRC Senior Project Manager Utility Radiological Safety Board i

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1 Dockrit Number 50-346 License Number NPF-3 Serial Number 1851 Attachment, Page 1 of 2 DATA POIM LIBRARY REFERENCE FIII DATE: 08/31/90 l REACTOR UNIT: DB1 DATA FEEDER: DADS N',C ERDS PARAMETER: TEMP CORE EX POIM ID: " H Highest of the 16 points listed in the unique PLANT SPEC POI W DESC.: system description GENERIC /COND DESC.: Highest temperature at core exit ANALOG / DIGITAL: A ENGR UNITS / DIG STATES: DEGP ENGR UNITS CONVERSION: N/A MINIMUM INSTR RANGE: 0 MAXIMUM INSTR RANGE: 2300 ZERO POINT

REFERENCE:

N/A REFERENCE POINT NOTES: N/A PROC OR SENS: P NUMBER OF SENSORS: 16 HOV PROCESSED: Highest SENSOR 1.0 CATIONS: Incore thermocouples are located at top of fuel.

ALARM / TRIP SET POINTS: N/A NI DETECTOR PGVER SUPPLY CUT-OFF POWER LEVEL: N/A , , ,

NI DETECTOR POVER SUPPLY TURN-ON POWER LEVEL: N/A INSTRUMENT FAILURE MODE: Lov TEMPERATURE COMPENSATION FOR DP TRANSMITTER: N/A

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- ' Dock;t Number 50-346 License Number NPF-3 Serial Number 1851

Attachment, Page 2 of 2

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l LEVEL REFERENCE LEG: N/A UNIQUE SYSTEM DESC.: The Validyne computer scans the 16 available Incore Thermocouple values and displays the highest value from this set. The 16 computer points and their associated core locations are: 1) T514, (F-3),

2) TS15 (L-3), 3) T520 (G-5), 4) T522 (K-5), 5) T524 (C-6), 6) T527 (0-6), 7) T530, (E-7), 8) T532 (M-7), 9) T539 (E-9), 10) T542 (M-9), 11) T544 (C-10), 12) T547 (0-10), 13) T550 (G-11), 14) T551 (K-11), 15) T557 (F-13),

and 16) T560 (L-13).

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