ML20062D382
| ML20062D382 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 07/28/1982 |
| From: | Vassallo D Office of Nuclear Reactor Regulation |
| To: | Parris H TENNESSEE VALLEY AUTHORITY |
| References | |
| NUDOCS 8208060053 | |
| Download: ML20062D382 (3) | |
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Docket Nos. 50-259
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50-260 ORB #2 Rdg DEisenhut
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50-296
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RClark SNorris Mr. Hugh G. Parris NSIC Manager of Power Tennessee Valley Authority ACRS (10)
JHeltemes 500 A Chestnut Street Tower II Chattanooga, Tennessee 37401
Dear Mr. Parris:
RE: Browns Ferry Unit Nos.1, 2 and 3 Reference is made to your application of March 4,1982 (TVA BFNP TS 172) for amendments to permit operation of the Browns Ferry units at reduced power with a single recirculation loop in service. To complete our review, we need a response to the enclosed request for additional information.
If you wish to expedite our review, your responses can be discussed with our staff and subsequently confimed by letter.
This request for additional infomation is specific to one licensee. The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore OMB clearance is not required under l
P.L.96-511.
Sincerely, ug:p:a ped W DomenicBiYsss$15. Chief i l Operating Reactors Branch #2 Division of Licensing
Enclosure:
As stated cc w/ encl:
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Mr. Hugh G. Parris cc:
H. S. Sanger, Jr., Esquire General Counsel Tennessee Valley Authority 400 Commerce Avenue E llB 33 C Knoxville, Tennessee 37902 Mr. Ron Rogers Tennessee Valley Authority 400 Chestnut Street, Tower II Chattanooga, Tennessee 37401 Mr. H. N. Culver 249A HBD 400 Commerce Avenue Tennessee Valley Authority Knoxville, Tennessee 37902 Resident Inspector U. S. Nuclear Regulatory Commission Route 2, Box 311 Athens, Alabama 35611 Athens Public Library South and Forrest Athens, Alabama 35611 Mr. John F. Cox Tennessee Valley Authority W9-D 207C 400 Commerce Avenue Knoxville, Tennessee 37902 George Jones Tennessee Valley Authority P. O. Box 2000 Decatur, Alabana 35602 James P. O'Reilly Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, Suite 3100 Atlanta, Georgia 30303
l BROWNS FERRY UNIT NOS. 1, 2 AND 3 REQUEST FOR ADDITIONAL INFORMATION SINGLE LOOP OPERATION DOCKET NOS. 50-259, 50-260 AND 50-295 1.
Describe how the change from nonnal two recirculation cooling loop operation to single loop operation would be accomplished. What physical, electrical, and/or administrative controls would be employed to satisfy the requirements of BTP EICSB-12 and IEEE Std. 272-4.15 regarding multiple setpoints and their control?
2.
Describe changes made to the flow computer to automatically account for magnitude and sense change for reverse flow in the idle loop jet pumps during single loop operations.
3.
Is there a requirement for the recirculation flow equalizer valves to be closed and tagged prior to commencing single recirculation loop operation as stated in NED0-24236 Page 1-1/1-2 and how is this require-ment ensured in the technical specification change?
4.
Where set point adjustments for single loop operation are required, is sufficient range available on the adjustment mechanisms to keep the new settings within the stable operating portion of the adjusting device?