ML20049H488
| ML20049H488 | |
| Person / Time | |
|---|---|
| Site: | Clinch River |
| Issue date: | 02/19/1982 |
| From: | Check P Office of Nuclear Reactor Regulation |
| To: | Longenecker J ENERGY, DEPT. OF |
| References | |
| NUDOCS 8203030138 | |
| Download: ML20049H488 (3) | |
Text
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1 February 19, 1982 Distribution Docket File-S NRC PDR Local PDR RECEIVED CRBR Reading' -Q NSIC I
Dockct 110.:
50-537 FEB 221982-T R. Stark a nue unrerammar 'S Hr. John R. Longenecker C. Thomas I
" n "es Licensing and Environmental Coordination P. Check e
Clinch River Breeder Reactor Plant F. Litton b
U. S. Department of Energy, HE-561 W. Foster 2
Washington, D. C.
20545 P. Shuttleworth
Dear Mr. Longenecker:
SUBJECT:
CLINCH RIVER BREEDER REACTOR PLAtlT, REQUEST FOR ADDITIONAL IliFORIMTI0ll A: a result of our review of your application for a construction permit for the Clinch River Breeder Reactor Plant, we find that we need addi-tional information in the area of !!aterials Engineering. Please provide your final responses within sixty days of the receipt of this reques..
The reporting and/or recordkeeping requiranents contained in this letter affect fewer than ten respondents; therefore, Oi1P clearance is not required under P.L.96-511.
f If you desire any discussion or clarification of the information requested, i
please contact R. M. Stark, Project Manager (301) 492-9732.
Sincerely, Origins! Sliinto DF
, aui 3. sL&'
Paul S. Check, Director CRBR Program Office Office of Nuclear Reactor Regulation
Enclosure:
As stated cc: Service List (203030138 820219 PDR ADOCK 05000537 A
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ENCLOSURE MATERIALS ENGINEERING BRANCH CS 250.1 In Section 3.2.2, " Safety Classifications," of the PSAR, the applicant stated compliance with the quality requirements of paragraph 50.55a, " Codes and Standards," of 10 CFR Part 50, except items (g), " Inservice Inspection Requirements," (i),
" Fracture Toughness Requirements," and (j), power reactors for which a hearing notice on the application for a construction permit was published on or before December 31, 1970.
I We concur with the applicant that the CRBRP is not subject to the conditions of paragraph 50.55a (g), (i), and (j) of 10 CFR Part 50. The conditions of paragraph 50.55a are applicable to boiling or pressurized water-cooled plants.
However, pursuant to paragraph 50.55, " Conditions of Construction Permits," we require conformance to the Inservice Inspection and Fracture Toughness requirements of the CRBR Principal Design Criteria stated in the PSAR.
Deviation from the CRBR Design Criteria should be identified and justified.
The Inservice Inspection and Fracture Toughness surveillance requirements to be specified for the CRBRP must provide an acceptable level of quality and safety in design and construction under operating, maintenance, testing and postulated accident conditions.
CS 250.2 We require that an inservice inspection program be established and submitted for our review to meet the quality requirements of the CRBR Design Criteria.
The program should include periodic volumetric examination of vessel and piping welds in both the primary heat transport (PHT) system and the intermediate heat transport (IHT) system.
The periodic volumetric examination is intended to provide assurance of the structural integrity l
of the components and to reliably identify potential long term degradation mechanisms that may result from plant operation.
We suggest that the selection of individual welds to be examined be based on the current inspection philosophy identified in the Summer 1979 and later Addenda of Division 1 of Section XI of the ASME Code.
The Addenda concentrates on the examinations to those areas which have a high degree of safety significance and a greater probability of failure.
These are generally high stress welds, terminal end and dissimilar metal welds.
In addition, the Addenda requires examination of the same weld each 10 year interval so that data trending may be accomplished.
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, cc:
Dr. Cadet H. Hand, Jr., Director Barbara A. Finamore Bodega Marine Laboratory S. Jacob Scherr University of California Ellyn R. Weiss P. O. Box 247 Dr. Thomas B. Cochran Bodega Bay, California 94923 Natural Resources Defense Council, Inc.
Daniel Swanson 1725 I Street, N.W.
Office of the Executive Suite 600 Legal Director Washington, D.C.
20006 U. S. Nuclear Regulatory Comission Eldon V. C. Greenberg Washington, D.C.
20555 Tuttle & Taylor 1901 L Street, N.W.
William B. Hubbard, Esq.
Suite 805 Assistant Attorney General Washington, D.C.
20036 State of Tennessee Office of the Attorney General L. Ribb 450 James Robertson Parkway LNR Associates Nashville, TN 37219 Nuclear Power Safety Consultants 8605 Grimsby Court William E. Lantrip, Esq.
Potomac, MD 20854 City Attorney Municipal Building P. O. Box 1 Oak Ridge. TN 37830 George L. Edgar, Esq.
Morgan, Lewis & Bockius 1800 M Street, N.W.
Washington, D.C.
20036 Herbert S. Sanger, Jr., Esq.
General Counsel Tennessee Valley Authority Knoxville, TN 37902 Chase Stephens, Chief Docketing and Service Section Office of the Secretary U. S. Nuclear Regulatory l
Comission Washington, D.C.
20555 Raymond L. Copeland Project Management Corp.
P. O. Box U Oak Ridge, Tennessee 37830