ML20040H039

Forwards Request for Addl Info Through C-E Owners Group on C-E Heated Junction Thermocouple Reactor Vessel Level Measurement Sys.Response Requested within 30 Days to Complete Generic Review of CEN-181-P

ML20040H039
Person / Time
Site:	Millstone, Calvert Cliffs, Palisades, Palo Verde, Saint Lucie, Arkansas Nuclear, Waterford, San Onofre, Maine Yankee, Fort Calhoun, 05000000, Satsop, Perkins, Cherokee, Yellow Creek
Issue date:	01/27/1982
From:	Crutchfield D Office of Nuclear Reactor Regulation
To:	Baskin K C-E OPERATING PLANTS OWNERS GROUP, SOUTHERN CALIFORNIA EDISON CO.
References
LSO5-82-01-065, LSO5-82-1-65, NUDOCS 8202170043
Download: ML20040H039 (5)

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January 27, 1982 ORB Reading NSIC G

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[*j'Q/SEPB Southern California Edison Company Post Office Box 800 2244 Walnut Grove Avenue Rosemead California 91770 f

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SUBJECT:

CE HEATED,1 UNCTION THERMOCOUPLE REACTOR VESSEL MEASUREMENT SYSTEM We have reviewed the CE Owners Group September 1981 submittal " Generic' Responses to NRC Questions on CE Inadequate Core Cocling Instrumentation" (CEN-181 -P). We have found that your response to the request for infor-mation enclosed with this letter is needed before we can complete our generic review. Your response is requested within 30 days of your receipt of this letter.

Since this request involves the need of further clarification of infor-mation which has already been submitted, OMB clearance is not required under P.L.96-511.

Sincerely, 14454$.

Dennis M. Crutchfield,

.ef Operating Reactors Bran

1. 5 Division of Licensing

Enclosure:

As stated cc: See attached list e202170043 820127 PDR ADOCK 05000255 P

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1 NRC FORM M 00% NRbM Oa'o OFFIClAL RECORD COPY u m. - -m em

Mr. Ken P. Baskin January 27, 1982 cc:

Palo Verde Nuclear Generating Station STN 50-528/529/530 Units 1, 2 & 3 LPM: E..Licitra Mr. E. E. Van Brunt, Jr.

Vice President - Nuclear Projects Arizona Public Service Canpany Post Office Box 21666 Phoenix, Arizona 85036 Arkansas Units 1 and 2 STN 50-313/368 LPM: B. Martin Mr. William Cavanaugh, III Senior Vice President, Energy Supply Department Arkansas Power & Light Canpany Post Office Box 551 Litt~.e Rock, Arkansas 72203 Calvert Cliffs Unit 1 and 2 STN 50-317/318 LPM: D. Jaffe Mr. A. E. Lundvall, Jr.

Vice President - Supply Baltimore Gas & Electric Company Post Office Box 1475 Baltimore, Maryland 21203 Palisades Plant STN 50-255 LPM: T. Wambach l

Mr. David P. Hoffman Nuclear Licensing Administrator Consumers Power Company 1945 W. Parnall Road Jackson, Michigan 49201 Perkins Units 1, 2 & 3 and STN 50-488/489/490 Cherokee 1, 2 & 3 STN:50-491/492/493 LPM: E. Licitra Mr. L. C. Dail, Vice President Design Engineering Duke Power Company Post Office Box 33189 Charlotte, North Carolina 28242 l

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Mr. Ken P. Baskin

- January 27, 1982 cc:

s St. Lucie Units 1 and 2 STN 50-335/389 LPM: C. Nelson Dr. Robert E. Uhrig Vice President Advanced Systems & Technology Florida Power & Light Company Post Office Box 529100 Miami, Florida 33152 Waterford Steam Electric Station.

STN 50-382 Unit 3 LPM: S. Black Mr. L. V. Maurin Assistant Vice President -

Nuclear Operations Louisiana Power & Light Company 142 Delaronde Street New Orleans, Louisiana 70174 Maine Yankee

' STN 50-309 LPM: B. Requa Mr. Joho H. Garrity, Senior Director Nuclear Engineering and Licensing flaine Yankee Atomic Power Company 83 Edison Drive Augusta, Maine 04336 Millstone Unit 2 STN 50-336 LPM: M. Conner Mr. W. G. Counsil Nuclear Engineering and Operations Northeast Nuclear Energy Company Post Office Box 270 Hartford, Connecticut 06101 Ft. Calhoun STN 50-285 LPM:.E. Tourigny Mr. W. C. Jones Division Manager, Production Operations Onaha Public Power District 1623 Harney Street Omaha, Nebraska 68102 t

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Mr. Ken P. Baskin 4.-

January 27, 1982 cc:

San Onofre 2 and 3 STN 50-361/362 LPM: H. Rood Mr. R. Dietch Vice President Nuclear Engineering a' d Operations n

Southern California Edison Company 2244 Walnut Grove Avenue Post Office Box 800 Rosemead, California 91770 Yellow Creek huclear Plant STN 50/566/567 Units 1 and 2 LPM: L. Wheeler Mr. H. G. Parris Manager of Power Tennessee Valley Authority 500A. Chestnut Street, Tower II Chattanooga, Tennessee 37401 Washington Public Power Supply System, STN 50-508/509 Units 3 & 5 LPM: L. Wheeler Mr. R. L. Ferguson Managir.; Director Washington Public Power Supply System Post Office Box 968 3000 George Washington Way Richland, Washington 99352 I

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e REQUEST FOR ADDITIONAL INFORMATION THROUGH CE OWNERS GROUP DN CE HEATED JUNCTION THERMOCOUPLE REACTOR VESSEL LEVEL MEASUREMENT SYSTD1

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1.

On Page 4.1 and Page 4.3 of CEN-185, statements are made referring to generic analyses.

Please quote specific references.

2.

What tests are planned for LOCA survivability?

3.

Since the QSPDS and CFHS both utilize digital processing, what plans have been made to validate and test the reliabi.lity of CE supplied software?

4.

Computer systems can be less reliable in industrial environments because of EMI. What measures will be taken to protect the RVLMS against EMI?

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