ML20198G842
| ML20198G842 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/29/1997 |
| From: | Andersen J NRC (Affiliation Not Assigned) |
| To: | Carns N, Loftus P NORTHEAST NUCLEAR ENERGY CO. |
| References | |
| TAC-M98678, NUDOCS 9709050138 | |
| Download: ML20198G842 (5) | |
Text
i Mr. Neil-S. Carns
-Senior Vice President August 29, 1997
-and Chief Nuclear Officer Northeast Nuclear Energy. Company L
c/o Ms. Patricia A. Loftus Director - Regulatory Affairs P.O.: Box 128
-Waterford, CT 06385-
SUBJECT:
REQUEST FOR ADDITIONAL'INFORMATION REGARDING THE-PROPOSED REVISION TO TECHNICAL SPECIFICATIONS DATED MAY 5, 1997 (TAC N0. M98678)
Dear Mr. Carns:
By letter dated May 5,1997, Northeast Nuclear ' Energy Company submitted a proposed revision to the Millstone Unit S Technical Specifications. Technical Specification -(TS) 4.8.4.1 requires periodic testing,of low voltage circuit breakers for all~ containment penetration conductor overcurrent protective devices.
The proposed amendment would modify the requirements for determining operability of the hw voltage circuit-breakers by using the manufacturer's curve of current.versus time to test time delay trip elements, clarify the use
'of two poles in series testing, and expand the TS Bases description of the subject tests. The NRC staff _has reviewed the proposed revision and requests that additional-information be submitted in order to continue its review.
You are requested to provide the NRC with answers to the enclosed questions.
Please respond to-the this request for additional-information expeditiously in order for the staff to complete its review in a timely manner.
Sincerely, Original signed by:
James W. Andersen, Project Manager Special Projects Office - Licensing Office of Nuclear Reactor Regulation Docket No. 50-423
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1 August 29, 1997 Mr. Neil S. Carns Senior Vice President and Chief Nuclear Officer 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 THE PROPOSED REVISION TO TECHNICAL SPECIFICATIONS DATED MAY 5, 1997 (TAC N0. M98678)
Dear Mr. Carns:
By letter dated May 5,1997, Northeast Nuclear Energy Company submitted a proposed revision to the Millstone Unit 3 Technical Specifications. Technical Spacification (TS) 4.8.4.1 requires periodic testing of low voltage circuit brerkers for all containment penetration conductor overcurrent protective devit.es. The proposed amendment would modify the requirements for determining operability of the low voltage circuit breakers by using the manufacturer's curve of current versus time to test time delay trip elements, clarify the use of two poles in series testing, and expand the TS Bases description of the subject tests. The NRC staff has reviewed the proposed revision and requests that additional information be submitted in order to continue its review.
You are requested to provide the NRC with answers to the enclosed questions.
Please respond to the this request for additional information expeditiously in order for the staff to complete its review in a timely manner.
Sincerely, I
!ames W. Andersen, Project Manager Special Projects Office - Licensing Office of Nuclear Reactor Regulation Docket No. 50-423
Enclosure:
As stated cc w/ encl: See next page
REQUEST FOR ADDITIONAL INFORMATION PROPOSED REVISION TO TECHNICAL SPECIFICATIONS (TSs) DATED MAY 5. 1997 MILLSTONE NUCLEAR POWER STATION. UNIT 3 TAC M98678 1.
-Long-Time and Short-Time Trip Delay Testing (a)
Please submit the representative station procedure (s) responsible for the testing of the air circuit breakers, molded case circuit breakers, and unitized starters under TS Surveillance 4.8.4.1.a.2.
(b)
Please cite other examples where the TS Bases.are utilized to contain exclusively the acceptance criteria and test parameters for surveillance requiiements.
(c)
Discuss its implementation of functional tests for breaker operation versus the testing of.the. breaker components.
2.
Two Poles in Series Testing (a)
Please provide the technical basis for the change in sampling methodology given the indication of a breaker failure (i.e.,
single pole test failure).
(b)
Under the current TS surveillance wording, a breaker found inoperable with the instantaneous element on one pole out of calibration shall be restored to operable status prior to resuming operation.
Please justify resuming plant operation in the case where one pole is out of calibration on the tested molded case circuit breaker.
3.
For the above questions, please address the potential for common mode failures (i.e., exceeding specified tolerances) during operation.
Enclosure
04 Northeast Nuclear Energy Ccmpany Millstone Nuclear Power i
Station cc:
Lillian M. Cuoco, r quire Mr. William D. Meinert s
fenior Nuclear Counsel Nuclear Engineer Nartbeast Utilities Service Company Massachusetts Municipal Wholesale P. c. Box 270 Electric Company Hartford, CT 06141-0270 P. O. Box 426 Ludlow, MA 01056 Mr. Kevin T. A. McCarthy, Director Monitoring and Radiation Division Joseph R. Egan, Esquire Department of Environmental Protection Egan & Associates, P.C.
79 Elm Street 2300 N Street, NW Hartford, CT 06106-5127 Washington, D.C. 20037 Regional Administrator, Region I Mr. F. C. Rothen U.S. Nuclear Regulatory Commission Vice President - Nuclear Work Services 475 Allendale Road Northeast Nuclear Energy Company-King of Prussia, PA 19406 P. O. Box 128 Waterford,-CT 06385 First Selectmen Town of Waterford Ernest C. Hadley, Esquire Hall of Records 1040 B Main Street 200 Boston Post Road P.'0. Box 549 Waterford, CT 06385 West Wareham, MA 02576 Mr. Wayne D. Lanning Mr. John Buckingham Deputy Director of Inspections Department of Public Utility Control Special Projects Office Electric Unit 475 Allendale Road 10 Liberty Square King of Prussia, 7A 19406-1415 New Britain, CT 06051 Michael H. Brothers Mr. James S. Robinson 1
Vice President - Millstone Unit 3 Manager, Nuclear Investments and Northeast Nuclear Energy Company Administration P. O. Box 128 New England Power Company Waterford, CT 06385 25 Research Drive Westborough, MA 01582 Mr. M. R. Scully, Executive Director Connecticut Municipal Electric Mr. D. M. Goebel Energy Cooperative Vice President - Nuclear Oversight 30 Stott Avenue Northeast Nuclear Energy Company Norwich, CT 06360 P. O. Box 128 Waterford, CT 06385 Mr. Mr. K. Thayer Recovery Officer - Nuclear Engineering and Support Northeast Nuclear Energy Company P. 0.. Box 128-Waterford, Connecticut 06385
Northehst Nuclear Energy Company
. Millstone Nuclear Power Station L
Unit 3 cc:
Deborah Katz, President Mr. B. D. Kenyon Citizens Awareness Network President and Chief Executive Officer P. O. Box 83 Northeast Nuclear Energy Company Shel'ourne Falls, MA 03170 P. O. Box 128 Waterford, CT 06385
- Sento'i Recident Inspector Millstone Nuclear Power Station Mr. Daniel L. Curry
.c/o U.S.. Nuclear Regulatory Project Director-Commission Persons Power Group Inc.
P. O. Box 513-2675 Morgantown Road Niantic, CT 06357 Reading, Pennsylvania 19607 Mr. Allan Johanson, Assistant Director Mr. Don Schopfer Office of Policy and Management Verification Team Manager Policy Development and Planning Division Sargent & Lundy 450 Capitol Avenue - MS# 52ERN 55 C. Monroe Street P. O. Box 341441 Chicago, Illinois 60603 Hartford, CT 06134-1441 Mr. Neil S. Carns Citizens Regulatory Commission Senior Vice President ATTN: Mr. Susan Perry Luxton and Chief Nuclear Officer 180 Great Neck Road Northest Nuclear Energy Company Waterford, Connecticut 06305 c/o Ms. Patricia A. Loftus Director - Regulatory Affairs The Honorable Terry Concannon P. O. Box 128 Co-Chair Waterford, Connecticut 06385 Nuclear Energy Advisory Council Room 4035 Legislative Office Building Capitol Avenue Hartford, Connecticut 06106 Mr. Evan W. Woollacott Co-Chair Nuclear Energy Advisory Council 128 Terry's Plain Road Simsbury, Connecticut 06070 Little Harbor Consultants, Inc.
Millstone - ITPOP Project Office P. 0. Box 0630 Niantic,. Connecticut 06357 0630 1
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