ML17174A771
| ML17174A771 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 06/26/1991 |
| From: | Barrett R Office of Nuclear Reactor Regulation |
| To: | Kovach T COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML17174A772 | List: |
| References | |
| TAC-79966, TAC-79967, NUDOCS 9107020368 | |
| Download: ML17174A771 (2) | |
Text
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Docket Nos. 50-237 and 50-249 Mr. Thomas J. Kovach Nuclear Licensing Manager Commonwealth Edison Company-Suite OPUS West I II 1400 OPUS Place Downers Grove, Illinois 60515
Dear Mr. Kovach:
June 26, 1991 *
'D-1 STRI-BUT-ION l Docket _Fl I e~ NRC & Local PD Rs
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SUBJECT:
INSERVICE TESTING PROGRAM RELIEF REQUEST VR-25 FOR DRESDEN, UNITS 2 AND 3 (TAC NOS. 79966 AND 79967)
In a letter dated March 13, 1991, Commonwealth Edison Company (CECo) submitted relief request VR-25 to the Inservice Testing (IST) program for Dresden, Units 2 and 3.
This request pertained to the use of the 1986 Edition of the ASME Code (Section XI) for determining the high pressure setpoint limits for sample expansion during main steam safety valve testing in the "as found" condition.
Since the 1986 ASME Code Edition only provided acceptance criteria for high pressure setpoint limits, in a letter dated April 9, 1991, you provided a revision to relief request VR-25 that included a low pressure setpoint limit.
The low "as found" pressure limit for sample expansion approved in the staff's Safety Evaluation (SE), which is enclosed, is based on discussions with your.
staff on May 9, 1991, during which CECo agreed that a minus 3% low pressure.
setpoint limit for sample expansion is appropriate.
In the SE on relief request VR-25t the. staff has determined in granting relief, pursuant to 10 CFR 50.55a(a)(3)(iJ and (g)(6)(i), that alternative testing would provide an acceptable level of quality and safety, and it is authorized by law and will not endanger life or property or the common defense and security.and is otherwise in the. public interest.
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Enclosure:
Safety Evaluation Sincerely, Original Signed By:
Richard J. Barrett, Director Project Directorate III-2 Division of Reactor Projects III/IV/V Office of Nuclear Reactor Regulation cc w/enclosure:
See next page
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KOVACH 79966/67
Mr. Thomas J. Kovach Commonwealth Edison Company cc:
Michael I. Miller, Esq.
Sidley and Austin One First National Plaza Chicago, Illinois 60690 Mr. J. Eenigenburg Plant Superintendent Dresden Nuclear Power Station Rural Route #1 Morris, Illinois 60450 U. S. Nuclear Regulatory Commission Resident Inspectors Office Dresden Station Rural Route #1 Morris, Illinois 60450 Chairman Board of Supervisors of Grundy County Grundy County Courthouse Morris, Illinois 60450 Regional Administrator Nuclear Regulatory Commission, Region III 799 Roosevelt Road, Bldg. #4 Glen Ellyn, Illinois 60137 Illinois Department of Nuclear Safety Office of Nuclear Facility Safety 1035 Outer Park Drive Springfield, Illinois 62704 Robert Neumann Office of Public Counsel State of Illinois Center 100 W. Randolph.
Suite 11-300 Chicago, Illinois 60601
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Dresden Nuclear Power Station Unit Nos. 2 and 3