ML20217D459
| ML20217D459 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 04/21/1998 |
| From: | Wiens L NRC (Affiliation Not Assigned) |
| To: | Richard Anderson FLORIDA POWER CORP. |
| References | |
| GL-96-06, GL-96-6, TAC-M96800, NUDOCS 9804240324 | |
| Download: ML20217D459 (3) | |
Text
April 21, 1998 4
Mr. Roy A. Andtrson Senior Vico Prssid:nt Energy Supply (SA2A)
Florida Power Corporation ATTN: Manager, Nuclear Licensing 15760 W. Power Line Street Crystal River, Florida 34428-6708
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE GL 96-06 RESPONSE FOR CRYSTAL RIVER 3 (TAC NO. M96800)
Dear Mr. Anderson:
Generic Letter (GL) 90-06, " Assurance of Equipment Operability and Containment Integrity During Design-Basis Accident Conditions," dated September 30,1996, included a request for licensees to evaluate cooling water systems that serve containment air coolers to assure that they are not vulnerable to water hammer and two-phase flow conditions. Florida Power Corporation provided its assessment of the water hammer and two-phase flow issues for Crystal River Unit 3 in a letter dated January 27,1997. In this response it was stated that because the Nuclear Services Closed Cycle Cooling System (SW) is a closed loop system that is pressurized i
to a minimum of 71.7 psig via nitrogen overpressure, neither water hammer or two-phase flow will occur. In order to complete our review of the resolution of the water hammer and two-phase flow issues for Crystal River Unit 3, we will require the following additional information:
a.
Confirmation that the water hammer and two-phase flow analyses included a complete failure modes and effects analysis (FMEA) for all components (including electrical and pneumatic failures) that could impact performance of the cooling water system and confirm that the FMEA is documented and available for review, or explain why a complete and fully documented FMEA was not performed.
b.
A complete description of any modifications that were made to resolve the water hammer and two-phase flow issues (e.g., increases in system over-pressure requirements).
c.
An explanation for why Technical Specification requirements are not warranted for SW surge tank temperature, over-pressure, and level requirements.
It is requested that this information be provided by June 30,1998, in order to support our review schedule for GL 96-06. If there are any questions conceming this request, please contact me at (301) 415-1495.
Sincerely,
/s/
Leonard A. Wiens, Senior Project Manager Project Directorate 11-3 Division of Reactor Projects 1/11 Office of Nuclear Reactor Regulation g
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April 21, 1998 l
i Mr. Roy A. Anderson Senior Vice President Energy Supply (SA2A)
Florida Power Corporation i
ATTN: Manager, Nuclear Licensing 15760 W. Power Line Street Crystal River, Florida 34428-6708
SUBJECT:
REQUEST FOR ADDITIONAL INFORMATION RELATED TO THE GL 96-06 RESPONSE FOR CRYSTAL RIVER 3 (TAC NO. M96800) i l
Dear Mr. Anderson:
1 Generic Letter (GL) 96-06, " Assurance of Equipment Operability and Containment Integrity During Design-Basis Accident Conditions," dated September 30,1996, included a request for licensees to evaluate cooling water systems that serve containment air coolers to assure that they are not vulnerable to water hammer and two-phase flow conditions. Florida Power Corporation provided its assessment of the water hammer and two-phase flow issues for Crystal River Unit 3 in a letter dated January 27,1997. In this response it was stated that because the Nuclear Services Closed Cycle Cooling System (SW) is a closed loop system that is pressurized to a minimum of 71.7 psig via nitrogen overpressure, neither water hammer or two-phase flow will occur. In order to complete our review of the resolution of the water hammer and two-phase flow issues for Crystal River Unit 3, we will require the following additional information-1 Confirmation that the water hammer and two-phase flow analyses included a complete a.
failure modes and effects analysis (FMEA) for all components (including electrical and pneumatic failures) that could impact performance of the cooling water system and confirm that the FMEA is documented and available for review, or explain why a complete and fully documented FMEA was not performed.
b.
A complete description of any modifications that were made to resolve the water hammer and two-phase flow issues (e.g., increases in system over-pressure requirements).
c.
An explanation for why Technical Specification requirements are not warranted for SW surge tank temperature, over-pressure, and level requirements.
It is requested that this information be provided by June 30,1998, in order to support our review schedule for GL 96-06. If there are any questions conceming this request, please contact me at j
(301) 415-1495.
l Sincerely, 1
Leonard A. Wiens, Senior Projeci Manager Project Directorate ll-3 Division of Reactor Projects 1/11 Office of Nuclear Reactor Regulation Docket No. 50-302 cc: See next page
o 9
Mr. Roy A. Anderson CRYSTAL RIVER UNIT NO. 3 Florida Power Corporation cc:
Mr. R. Alexander Glenn Mr. Robert E. Grazio, Director Corporate Counsel Nuclear Regulatory Affairs (SA2A)
Florida Power Corporation Florida Power Corporation MAC-ASA Crystal River Energy Complex P.O. Box 14042 15760 W. Power Line Street St. Petersburg, Florida 33733-4042 Crystal River, Florida 34428-6708 Mr. Charles G. Pardee, Director Senior Resident inspector Nuclear Plant Operations (NA2C)
Crystal River Unit 3 Florida Power Corporation U.S. Nuclear Regulatory Commission Crystal River Energy Complex 6745 N. Tallahassee Road 15760 W. Power Line Street Crystal River, Florida 34428 Crystal River, Florida 34428-6708 Mr. John P. Ccwan, Vice President Mr. Robert B. Borsum Nuclear Operations (NA2E)
Framatome Technologies Inc.
Florida Power Corporation 1700 Rockville Pike, Suite 525 Crystal River Energy Complex j
Rockville, Maryland 20852 15760 W. Power Line Street Crystal River, Florida 34428-6708 Mr. Bill Passetti i
Office of Radiation Control Mr. Gregory H. Halnon Department of Health and Acting Director, Quality Programs (SA2C)
Rehabilitative Services Florida Power Corporation 1317 Winewood Blvd.
Crystal River Energy Complex Tallahassee, Florida 32399-0700 15760 W. Power Line Street Crystal River, Florida 34428-6708 Attomey General Department of Legal Affairs Regional Administrator, Region 11 The Capitol U.S. Nuclear Regulatory Commission Tallahassee, Florida 32304 61 Forsyth Street, SW., Suite 23T85 Atlanta, GA 30303-3415 Mr. Joe Myers, Director Division of Emergency Preparedness Mr. Kerry Landis Department of Community Affairs U.S. Nuclear Regulatory Commission 2740 Centerview Drive 61 Forsyth Street, SW., Suite 23T85 Tallahassee, Florida 32399-2100 Atlanta, GA 30303-3415 l
Chairman i
Board of County Commissioners Citrus County 110 North Apopka Avenue lvemess, Florida 34450-4245 l