ML20004D218
| ML20004D218 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/03/1981 |
| From: | Ippolito T Office of Nuclear Reactor Regulation |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| Shared Package | |
| ML18025B526 | List: |
| References | |
| IEB-79-01B, IEB-79-1B, NUDOCS 8106090004 | |
| Download: ML20004D218 (3) | |
Text
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UNITED STATES y "
',"r, NUCLEAR REGULATORY COMMISSION 7,
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June 3,1981 Docket Nos. 50-259
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Mr. Hugh G. Parris Manager of Power D[
Tennessee Valley Authority 500A Chestnut Street, Tower II Chattanooga, Tennessee 37401
SUBJECT:
ENVIRONMENTAL QUALIFICATION OF SAFETY-RELATED ELECTRICAL EQUIPMENT P,E :
BROWNS FERRY NUCLEAR PLANT, UNIT NOS.1, 2 AND 3; FACILITY LICENSES NOS. DPR-33, DPR-52 AND DPR-68 Reference (a) - Order for Modification of License Concerning the Environmental Qualification of Safety-Related Electrical Equipment dated October 24, 1980
Dear Mr. Parris:
This letter transmits the Safety Evaluation for the Environmental Qualification of Safety-Related Electrical Equipment at your facility. This evaluation was based on your submittals dated April 30, July 18 and October 31, 1980. Our letter of March 16, 1981, which forwarded our preliminary results, indicated that an item-by-item re-evaluation would be required at a later date. This safety evaltiation identifies the specific information required by the staff and the actions, on your part, necessary to comply with Reference-(a). We request that you provide the information identified in sections 3 and 4 of this Safety Evaluation to us within 90 days.
This Safety Evaluation addresses only the safety-related electrical equipment exposed to a harsh en fironment resulting from an accident (i.e., the IEB 79-01B review).
Reference (a) requires that all safety-related electrical equipment be qualified by June 30, 1982. The NRC review effort for the equipment in mild environments will be addressed b; separate correspondence.
Your response may present alternatives to the staff positions in the evaluation.
The staff will consider alternative approaches if these methods are within the DDR Guidelines or NUREG-0588, as appropriate. For example, an acceptable alternative to the NRC staff's temperature criterion used for the service conditions (i.e. Section 3.3) must base that service condition on the FSAR analysis or other NRC approved analysis, provided that the specific analysis, together with reference to the previous NRC acceptance of that analysis, accompanies the 90 day response.
In addition, some of the information in the Safety Evaluation may require clarification. Contact your project manager for assistance in these matters.
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It remains your responsibility to assure that the qualification deadline is-met for all safety-related electrical equipment. The staff's review of your response to this letter should not delay any action which is required in 2.
order to meet the deadline.
Sincerely, i
Chief Operating Reactors Branch _#2 Division of Licensing 1
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Enclosures:
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2.
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- Mr. Hugh G. Parris CC*
H. S. Sanger, Jr., Esquire General Counsel Tennessee Valley Authority
,J 400 Commerce Avenue E llB 33 C Knoxville,. Tennessee 37902 i
Mr. Ron Rogers Tennessee Valley Authority 400 Chestnut Streets, Tower II Chattanooga, Tennessee 37401 Mr. H. N. Culver 249A HBD 400 Commerce Avenue Tennessee Valley Authority Knoxville, Tennessee 37902 Robert F. Sullivan U. S. Nuclear Regulatory Commission P. O. Box 1863 Decatur, Alabama 35602 Athens Public Litrary South and Forrest Athens, Alabama 35611-Mr, John F. Cox
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Tengeisee Valley Authority W9-D 207C 400 Commerce Avenue Knoxville, Tennessee 37902 Mr. Herbert Abercrombie Tennessee Valley Authority P. O. Box 2000 j
Deca,tur, Alabana 35602 p
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