ML20153C115
| ML20153C115 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 09/16/1998 |
| From: | Mcdonald D NRC (Affiliation Not Assigned) |
| To: | Bowling M NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| TAC-MA2340, NUDOCS 9809230344 | |
| Download: ML20153C115 (5) | |
Text
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September 16, 1998 Mr. Martin L. Bowling Recovery Officer - Technical Services Northeast Nuclear Energy Company clo Ms. Patricia A. Loftus Di'ector - Regulatory Affairs P.O. Box 128 Waterford, CT 06385 i
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING TECHNICAL SPECIFICATION AMENDMENT REQUEST-MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 (TAC NO. MA2340)
Dear Mr. Bowling:
By letter dated July 21,1998, Northeast Nucisar Energy Company requested a Technical Specification (TS) amendment that would change the TS for the Reactor Protection System (RPS) and the Engineered Safety Features Actuation System (ESFAS) instrumentation by relating to various setpoints and allowable values; correct the specified maximum reactor power level limited by the high power level RPS trip; add riew TS, and requirements associated with the automatic isolation of steam generator blowdown; and make several editorial corrections.
The NRC staff has completed a preliminary review of your request and has identified issues that require additional information. Please respond to the enclosed request for additional information within 30 days from receipt of this letter in crder for the staff to complete its review.
Sincerely, Original syned by:
Daniel G. Mcdonald Jr., Senior Project Manager Millstone Project Directorate Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation Docket No. 50-336 f
Enclosure:
As stated cc w/ encl: See next page f
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September 16, 1998 Mr Martin L. Bowling Recovery Officer - Technw! Services Northeast Nuclear Energy Company c/o Ms. Patricia A. Loftus Director-Regulatory Affairs P.O. Box 128 Waterford, CT 06385
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION REGARDING TECHNICAL SPECIFICATION AMENDMENT REQUEST-MILLSTONE NUCLEAR POWER STATION, UNIT NO. 2 (TAC NO. MA2340)
Dear Mr. Bowling:
By letter dated July 21,1998, Northeast Nuclear Energy Company requested a Technical Specification (TS) amendment that would change the TS for the Reactor Protection System (RPS) and the Engineered Safety Features Actuation System instrumentation by relating to various setpoints and allo' able values; correct the specified maximum reactor power level w
limited by the high power level RPS trip; add new TS, and requirements associated with the automatic isolation of steam generator blowdown; and make several editorial corrections.
j i
The NRC staff has completed a preliminary review of your request and has identified issues j
that require additionalinformation. Please respond to the enclosed request for additional information within 30 days from receipt of this letter in order for the staff to complete its review.
1 Sincerely, j
i Daniel G. Mcdonald Jr., Senior Project Manager Millstone Project Directorate j
Division of Reactor Projects -l/II Office of Nuclear Reactor Regulation f
I Docket No. 50-336
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Enclosure:
As stated t
cc w! encl: See next page l
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Millstono Nuclear Power Station Unit 2 cc:
Lillian M. Cooco, Esquire Mr. F. C. Rothen Senior Nuclear Counsel Vice President - Work Services Northeast Utilities Service Company Northeast Utilities Service Company
' P, O. Box 270,
P. O. Box 128
, Hartford, CT 06 e% 270 Waterford, CT 06385 Mr. John Buckingham Emest C. Hadley, Esquire Department of Public Utility Control 1040 B Main Street Electric Unit P.O. Box 549 -
10 Liberty Square -
West Wareham, MA 02576 New Britain, CT 06051 Mr. John F. Oreeter Mr. Kevin T. A. McCarthy, Director Recovery Officar - Nuclear Oversigh' Monitoring and Radiation Division Northeast Utilities Service Company Department of Environmental Protection P. O. Box 128 79 Elm Street Waterford, CT 06385 Hartford, CT 0610F-5127 Mr. David B. Amerine Regional Administ.*ator, Region i Vice President - Human Services U.S. Nuclear Regulat.,ry Commission Northeast Utilities Service Company 475 Allendale Road P. O. Box 128
-King'of Prussia, PA 19406 Waterford, CT 06385 First Selectmen Mr. Allan Johanson, Assistant Director Town of Waterford Office of Policy ar'd Management Hall of Records Policy Development and Planning 200 Boston Post Road Division Waterford, CT 06385 450 Capitol Avenue.- MS# 52ERN P. O. Box 341441 Mr. Wayne D. Lanning, Director Hartford, CT 06134-1441 Millstone Inspections Office of the Rogional Administrator.
Mr. M. H. Brothers 475 Allendale Road Vice President - Operations King of Prussia, PA 19406-1415 Northeast Nuclear Energy Company P.O. Box 128 Charles Brinkman, Manager Waterford, CT 06385 Washington Nuclear Operations ABB Combustion Engineering Mr. J. A. Price 12300 Twinbrook Pkwy, Suite 330 Director - Unit 2 Rockville, MD 20852 Northeast Nuclear Energy Company P.O. Box 128 Senior Resident inspector.
Waterford, CT 06385
- Millstone Nuclear Power Station c/o U.S. Nuclear Regulatory Commission P.O. Box 513 Niantic, CT 06357
Millstone Nuclear Power Station
' Unit 2 cc:
Mr. B. D.' Kenyon (Acting)
Attomey Nicholas J. Scobbo, Jr.
Chief Nucler officer-Millstone Ferriter, Scobbo, Caruso, Rodophele, PC Northeast Nuclear Energy Company 1 Beacon Street,11th Floor P.O. Box 128 Boston, MA 02108 Waterford, CT 06385 Mr. J. P. McElwain Citizens Regulatory Commission Recovery Officer-Millstone Unit 2 ATTN: Ms. Susan Perry Luxton Northeast Nuclear Energy Company 180 Great Neck Road P. O. Box 128 Waterford, CT 06385 Waterford, Connecticut 06385 Deborah Katz, President Citizens Awareness Network P. O. Box 83 Shelbume Falls, MA 03170 The Honorable Terry Concannon Co-Chair Nuclear Energy Advisory Council Room 4035 Legislative Office Building Capitol Avenue.
Hartford, CT 06106 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terry's Plain Road Simsbury, CT 06070 Little Harbor Consultants, Inc.
Millstone - ITPOP Project Office P. O. Box 0630 Niantic, CT. 06357-0630 Mr. Daniel L. Curry Project Director Parsons Power Group Inc.
2675 Morgantown Road Reading, F419607 k
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REQUEST FOR ADDITIONAL INFORMATION MILLSTONE NUCLEAR POWER STATION. UNIT NO. 2 DOCKET NO. 50-336
' 1.
The NRC staff has not reviewed or approved the ISA-RP67.04, Part 11,1994 Standard.
The approved standard, which provides guidance for setpoint (SP) calculations for instrumentation in safety-related systems, is ISA 67-04,1982, which has been endorsed by the NRC staff in Regulatory Guide 1.105, Rev. 2.
Please confirm the following, since the SP methodology used by Northeast Nuclear Energy Company (NNECO) is based on ISA-RP67.04, Part II,1994 Standard, which has not yet been approved by the NRC:
(a)
That the methodology used by NNECO treats all elements of the instrument loop uncertainties in the same way that is prescribed by the 1982 version of the ISA standard.
(b)
That the selected nominal SP will always initiate the required mitigating action (s) prior to the monitored variable encroaching its analytical limit when considering all elements of instrument uncertainties and the response time of the actuated equipment / system. Please provide a description of the allowable value (AV) and its development with respect to the analyticallimit and trip SP.
(c)
That the calculation of the AV is consistent with the channel functional test and calibration surveillance requirements in that the uncertainty terms included in the AV calculation are representative of the associated component uncertainties under test. (Rehrence IEEE-338) 2.
The current surveillance frequency at the Millstone Nuclear Power Station, Unit No. 2, is 18 months. However, as noted in the submittal, the revised SP calculations are based on 24 months drift, which is conservative with regard to SP determination. Please confirm that the surveil!ance-test acceptance criteria for the 18-month surveillance test is compatible to the drift values used in SP calculations. Please note that the staff's review of the referred submittalis limited to revised SP/AV calculations only and does not include areas relating to extending surveillance frequency from 18 months to 24 months including drift extension methodology, a
b Enclosure j
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