ML17208A718
| ML17208A718 | |
| Person / Time | |
|---|---|
| Site: | Saint Lucie  |
| Issue date: | 05/29/1980 |
| From: | Clark R Office of Nuclear Reactor Regulation |
| To: | Robert E. Uhrig FLORIDA POWER & LIGHT CO. |
| References | |
| NUDOCS 8006190120 | |
| Download: ML17208A718 (6) | |
Text
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Docket File ORBk'3 Rdg NRC PDR NRR Rdg L PDR DEisenhut K TERA TNovak BX NSIC RCl ark Docket No. 50-335 IE-3 ACRS-16 Dr. Robert E. Ugrig Yice President Florida Power 8I Light Company'dvanced Systems 8, Technology P. 0. Box 529100 Miami, Florida 33152
Dear Dr. Uhrig:
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Gray File MAy p 8 1S80 Please provide this information within 30 days of the date of this letter.
Sincerely, We have reviewed your submittal of November, 9, 1979 regarding the subject of degraded grid voltage and have determined t4at the additional information requested in the enclosure is necessary to continue our review.
Enclosure:
Request for Additional Information cc w/enclosure:
See next page QlI8i""
"'obertA. Clark, Chief Operating Reactors Branch 03 Division of Licensing 8 0 0 6 1 9 0 12.D p
OFFICE/
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NRC FORM 318 (9 76) NRCM 0240 Ba
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AU.S. GOVERNMENT PRINTING OFFICE: 1979 289 369
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C:20555 May 29, 1980 Docket No. 50-335 Dr. Robert E. Uhrig Vice President Florida Power 8 Light Company Advanced Systems 5, Technology P.
0.
Box 529100 Miami,.Florida 33152.
Dear Dr. Uhrig:
We have reviewed your submittal of November 9, 1979 regarding the subject of degraded grid voltage and have determined that the additional information requested in the enclosure is necessary to continue our review.
Please provide this information within 30 days of the date of this letter.
Sincerely, Encl osur e:
Request for Additional Information Robert
. Clark, Chief Operating Reactors Branch 83 Division of Licensing cc w/enclosure:
See next page
Florida Power
& L>ght Company
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cc w/enclosure(s):
Robert Lowenstein, Esquire Lowenstein,
- Newman, Reis
& Axelrad 1025 Connecticut
- Avenue, H.M.
Washington, D.C.
20036 Horman A. Coll, Esquire McCarthy, Steel, Hector
& Davis 14th Floor, First National Bank Building Miami, Florida 33131 Indian River Junior College Library 3209 Virginia Avenue Fort Pierce, Florida 33450
)b. Jack Shreve Office of the Public Counsel Room 4, Holland Bldg.
Tallahassee, Florida 32304 Bureau of Intergovernmental Relations 660 Apalachee Parkway Tallahassee, Florida 32304 Administrator Department of Environmental Regulation Power Plant 'Siting Section State of Florida 2600 Blair Stone Road Tallahassee, Florida 32301 Mr. Meldon B. Lewis County Administrator St. Lucie County 2300 Yirgini,a Avenue, Room 104 Fort Pierce, Florida 33450 Director,.Technical Assessment Division Office of Radiation Programs (AW-459)
U.
S. Environmental Protection Agency Crystal Mall k2 Arlington, Virginia 20460 U.S. Environmental Protection Agency Region IY Office ATTN:
EIS COORDINATOR 345 Courtland Street, N.E.
- Atlanta, Georgia 30308
REQUEST FOR ADDITIONAL INFORMATION ON DEG DED GRID VOLTAGE ST.
LUCIE UNIT 1 DOCKET NO. 50-335 Ref.
1 - Florida Power and Light (R.E. Uhrig) letter to the NRC (W. Gammill) dated November 9, 1979 Ref.
2 -
NRC (D.K. Davis) letter to Florida Power and Light (R.E. Uhrig) dated June 3, 1977.
1.
Relay operating curves of the h>stinghouse type CY-2 undervoltage relay show that the operating behavior between 905 and 1005 of the setpoint is not positively defined.
For the proposed relay setpoint (88.3Ã of 4160Y), the defined range is limited to 79.5X of 4160Y (905 of 83.3Ã).
Confirm that the proposed setpoint for time dial 1
will adequately protect all Class lE equipment from degraded voltage.
Also provide maxinam,and minimum limits to the setpoint (voltage and time delay) and verify that the emergency equipment will operate without damage or shortened life with the voltage at the minimum tolerance.
2.
Ref.
1 (pag'e 2) states that each Class lE bus has an individual undervoltage relay.
Show how this relay can provide coincident logic (such as 2 out of 3) to preclude spurious trips of the Class lE bus from off-site power as required by Staff Position l(b).
3.
FPL should subtoi i changes to the Technical Specification complying with the'requirements of the Enclosure of Reference 2,
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