ML20049J580
| ML20049J580 | |
| Person / Time | |
|---|---|
| Site: | Clinch River |
| Issue date: | 03/09/1982 |
| From: | Check P Office of Nuclear Reactor Regulation |
| To: | Longenecker J ENERGY, DEPT. OF |
| References | |
| NUDOCS 8203180403 | |
| Download: ML20049J580 (4) | |
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Distribution
/On-ketFile March 9, 1982 NRC PDR Local POR NSIC CRBR Reading:
Docket No.: 50-537 R. Stark C. Thomas e
P. Check Mr. John R. Longenecker H. Garg Licensing and Environmental Cocrdination W. Foster Clinch River Breeder Reactor Plant P. Shuttleworth U. S. Department of Energy, 4E-561 Washington, D. C.
20545
Dear Hr. Longenecker:
SUBJECT:
CLINCH RIVER BREEDER REACTOR PLANT, REQUEST FOR ADDITIONAL INFORMATI0d As a result of our review of your application for a construction pennit for the Clinch River Breeder Reactor Plant, we find that we need addi-tional infonnation in the area of Equipment Qualification. Please provide your final responses within sixty days of the receipt of this request.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMP clearance is not required under P.L.96-511.
If you desire any discussion or clarification of the information requested, please contact R. H. Stark, Project Manager (301) 492-9732.
Sincerely,
/3 ! OhN,hw^n wp PaQ1 S. Check, Director CRBR Program Office l
Office of Huclear Reactor Regulation l
Enclosure:
As stated v
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Dr. Cadet H. Hand, Jr., Director Barbara A. Finamore Bodega Marine Laboratory S. Jacob Scherr University of Califorr.ia 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 Commission 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 Commission Washington, D.C.
20555 Raymond L. Copeland Project Management Corp.
P. 0. Box U Oak Ridge, Tennessee 37830
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CS 270.1
- nc NRC staf f position on environnental quM ification of
( 3.11 )
electrical equipment is discussed in fiUREG-0588.
Discuss your compliance with these requirements.
If you intend to use WARD-D-0165, "CRBRP Requirements for Environmental Qualification of Class lE Equipment," identify any differences between IEEE-323,1974 and the NUREG-0588 Category I require-ments and discuss how the CRBR design complies with the NUREG-0588, Category 1 requirements.
CS 270.2 Confirm that Section 3.2 contains all safety-related systems (3.11.1) (including display instrumentation which is required by the plant emergency procedures) requiring environmental qualifi-cation.
CS270.3 NUREG-0800, Standard Review Plan Section 3.11 requires environ-(3.11 )
mental qualification of mechanical as well as electrical equip-ment.
Explain in detail how you intend to comply with the requirements for the environmental qualification of mechanical equipment.
CS270.4 Discuss how you intend to account for the unce; tainties caused by (3.11 )
the production errors and errors associated with defining satis-factory performance when only a small number of units are tested.
This margin should be in addition to the margin applied during the derivation of the specified plant parameters and margin applied to accounts for the instrument error during testing.
CS 270. 5 Since equipment may be exposed to a sodium acrsol environment (3.11 )
and this condition is unique to CRBRP, describe in detail how you plan to qualify the equipment for the sodium aerosol environ-ment.
Provide the results of the testing performed to date.
How do you assure the operability of diesel generators in the sodium aerosol environment?
CS270.6 WARD-D-0165, Section 4.2.2, item 9. discusses failures during (3.11 )
testing.
In case of the failure during the test, if a redesign or replacement has been pursued as a solution, the complete assembly must be tested again to assure qualification.
Discuss your commitment to this requirement.
CS270.7 WARD-D-0165, Section 4.2.2, Page 5, third paragraph: revise (3.11 )
IEEE-383-1972 to IEEE-382-1972.
CS270.8 WARD-D-0165, Page 4.11, Figure 4.3 and the Table on Page 4-13 (3.11 )
discuss the aging method similar to the 10*C rule.
It is the NRC staff position that the 10'C rule is not an acceptable aging method unless justified by providing the verification based on Arrhenius methodology.
Discuss how you comply with this requirement.
9 CS270.9 WARD-D-0165, Section 2.2 defines the mild (non-severe) environment.
(3.11)
The definition used by the staff for the mild environment is defined as "an environment that would at no time be more severe than the environment that would occur during normal plant operation or during anticipated operational occurrences".
Discuss your compliance with the staff's definition for the mild environment.
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