ML17348A549

Forwards Request for Addl Info Re Emergency Power Sys Enhancement Project.Response Requested by 900924

ML17348A549
Person / Time
Site:	Turkey Point
Issue date:	09/10/1990
From:	Edison G Office of Nuclear Reactor Regulation
To:	Goldberg J FLORIDA POWER & LIGHT CO.
References
TAC-69023, TAC-69024, NUDOCS 9009170082
Download: ML17348A549 (6)

Text

September 10, 1990 Docket Nos.

50-250 and 50-251 Mr. J.

H. Goldberg Executive Vice President Florida Power and Light Company Post Office Box 14000 Juno Beach, Florida 33408-0420

Dear Mr. Goldberg:

DISTRIBUTION:

HBerkow J. Joyce, SICB S.

Newberry,SICB J. Knight Driller SVarga MSinkule, RII GLainas EJokdan OGC ACRS (10)

PD22 Rdg. File GEdison M. Waterman, SICB A. Toalston, SELB F.

Rosa NRC 5 Local PDRs

SUBJECT:

TURKEY POINT UNITS 3 AND 4 - REQUEST FOR ADDITIONAL INFORMATION ON EMERGENCY POWER SYSTEM ENHANCEMENT PROJECT (TAC NOS.

69023 AND 69024)

The purpose of this letter is to request additional information regarding the Emergency Power System (EPS)

Enhancement Project.

The staff has reviewed your submittals in support of the Emergency Power System Enhancement Project.

The review indicates that the staff requires additional information described in the enclosure.

Questions Nos.

1 - 4 were discussed by telephone with Dean Baker of your staff on August 27, 1990.

Question No.

5 was discussed by telephone with Tom Grozan of your staff on September 5, 1990.

We request that you provide the responses by September 24,

1990, so that the staff can complete its review in a timely manner.

The reporting and/or recordkeeping requirements contained in this letter affect fewer than 10 respondents; therefore, OMB clearance is not required under P.L.96-511.

Any questions you may have concerning the questions should be directed to me Sincere ly, (Original Signed By)

Encl osur e:

As stated cc w/enclosure:

See next page Gordon E. Edison, Sr. Project Manager Project Directorate II-2 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation NAME DATE

9/

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9//g /90 OFFICIAL RECORD COPY Document Name:

LETTER51 9005'f70082 5'009i0 PDR ADOCK 05000250 0~'

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Mr. J.

H. Goldberg Florida Power and Light Company Turkey Point Plant CC:

Harold F. Reis, Esquire Newman and Holtzinger, P.C.

1615 L Street, N.W.

Washington, DC 20036 Mr. Jack Shreve Office of the Public Counsel Room 4, Holland Building Ta 1 1ahassee, Florida 32304 John T. Butler, Esquire

Steel, Hector and Davis 4000 Southeast Financial Center fliami, Florida 33131-2398 Mr. K. N. Harris, Vice President Turkey Point Nuclear Plant Florida Power and Light Company P.O.

Box 029100 Miami, Florida 33102 County Manager of Metropolitan Dade County Ill NW 1st Street, 29th Floor Miami, Florida 33128 Senior Resident Inspector Turkey Point Nuclear Generating Station U.S. Nuclear Regulatory Commission Post Office Box 57-1185 Miami, Florida 33257-1185 Mr. Jacob Daniel Nash Office. of Radiation Control Department of Health and Rehabilitative Services 1317 Winewood Blvd.

Ta 1 1 ahas see, F lorida 32399-0700 Intergovernmental Coordination and Review Office of Planning 5 Budget Executive Office of the Governor The Capitol Building Tallahassee, Florida 32301 Administrator Department of Environmental Regulation Power Plant Siting Section State of Florida 2600 Blair Stone Road Ta 1 lahassee, F lorida 32301 Reg iona 1 Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W. Suite 2900 Atlanta, Georgia 30323 Attorney General Department of Legal Affairs The Capitol Tallahassee, Florida 32304 Plant Manager Turkey Point Nuclear Plant Florida Power and Light Company P.O.

Box 029100 Miami, Florida 33102

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ENCLOSURE REQUEST FOR ADDITIONAL INFORMATION REGARDING EMERGENCY POWER SYSTEM ENHANCEMENT PROJECT The following questions relate to the design of the electrical load sequences.

1.

Provide a detailed description of the device(s) used to accomplish electrical isolation, and describe the specific testing performed to demonstrate that the device is acceptable for its application(s).This description should include elementary diagrams to indicate the test configuration and how the maximum credible faults were applied to the device(s).

2.

Provide data to verify that the maximum credible faults applied during the test were the maximum voltage/current to which the device could be

exposed, and define how the maximum voltage/current was determined.

3.

Provide data to verify that the maximum credible fault was applied to the output of the device in the transverse mode (between signal and return) and to verify that other faults were considered, i.e.

open and short circuits.

4.

Define the pass/fai 1 acceptance criteria for each type of device.

5.

Provide a discussion of protective devices or other means provided to prevent lightning strikes or switching surges from propagating to the solid state programmable logic load sequencer s and causing a

common mode failure of the load sequencers.