ML20195C616
| ML20195C616 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 06/03/1999 |
| From: | NRC (Affiliation Not Assigned) |
| To: | |
| Shared Package | |
| ML20195C601 | List: |
| References | |
| NUDOCS 9906080233 | |
| Download: ML20195C616 (4) | |
Text
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UNITED STATES ?
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NUCLEAR REGULATORY COMMISSION a
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WASHINGTON, D. C. 20555
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SAFETY EVALUATION BY THE OFFICE OF NUCLEAR REACTOR REGULATION RELATED TO AMENDMENT NO.177TO FACILITY OPERATING LICENSE NO. DPR-72 1
TO ADD FOUR REGUI.ATORY GUIDE 1.97 INSTRUMENTATION VARIABLES FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302
1.0 INTRODUCTION
By letter dated August 31,1998, Florida Power Corporation, the licensee for Crystal River Unit 3 (CR-3), requested U.S. Nuclear Regulatory Commission (NRC) approval to implement an amendment to its operating license by incorporating modifications to the Technical Specifications (TS) for post-accident monitoring (PAM) instrumentation. The licensee proposes to add (1) low pressure injection (LPI) pump run status, (2) LPl suction from reactor building (RB) sump isolation valves DHV-42 and DHV-43 open position, and (3) high pressure injection (HPI) pump run status to Type A Category 1 PAM instrumentation variables. In
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. addition, the licensee proposes to add reactor coolant system (RCS) low-range pressure to Type B Category 1 PAM instrumentation variables. The requested additions are a result of a licensee review of the emergency operating procedures (EOPs) and variables associated with Regulatory Guide (RG) 1.97, " Instrumentation for Light-Water-Cooled Nuclear Power Plants to Assess Plant and Environs Conditions During and Following an Accident."
2.0 EVALUATION 2.1 LPl Pumo Run Status Emergency Operating Procedures instruct operators to verify LPI pump run status during several evolutions. Dunng loss-of-coolant accidents (LOCA), the LPI pump is manually aligned to provide suchon to an associated HPI pump. This arrangement is referred to as LPl/HPl piggyback operation. The EOPs direct operators to verify each LPI pump is operating prior to opening the appropriate valve between the LPI pump discharge and the associated HPl pump suction.- in addition, LPl/HPl piggyback operation is required when single component failures result in one available LPl train.
The licensee proposes a monthly channel check for the mam control board indicating light and the Engineered Safeguards (ES) Light Matrix indicator for each LPI pump. Since the indicating lights have no adjustment and provide only on-off indication, a channel calibration surveillance requirement (SR) is not meaningful. Instead, the licensee proposes to add SR 3.3.17.3,
" Channel Functional Test." The new SR will be performed on a 24-month frequency. The Channel Functional Test involves injecting a signal into the channel as close to the sensor as prachcable to verify operability of the switch contacts. The 24-month frequency is consistent with the SR for PAM instrumentation Function 20, LPI Flow, in Table 3.3.17-1.
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- The licensee has classified and'avsluated the LPl pump run status as a Type A Category 1 variable in accordance with guidance delineated in Regulatory Guide (RG) 1.97. The staff finds the licensee's evaluation consistent with RG 1.97 guidance, and is therefore acceptable.
2.2 DHV-42 and DHV-43 Open Position During LPl/HPl piggyback operation, valves DHV-42 and DHV-43 are open to preserve operability of the LPl pump, building spray pump, and the HPI pump. Emergency Operating Procedures require operators to verify that valves DHV-42 and DHV-43 have been successfully opened to ensure suction from the RB sump prior to isolating suction from the borated water storage tank.
The licensee has determined that the DHV-42 and DHV-43 open position instrumentation will be subject to a monthly channel check and 24-month channel calibration as described in the existing SR 3.3.17.1. This SR is consistent with the SR for other PAM instrumentation sump
. Isolation functions in Table 3.3.17-1.
The licensee has classified and evaluated the DHV-42 and DHV-43 open position as Type A Category 1 instrumentation variable in accordance with guidance delineated in RG 1.97. The staff finds the licensee's evaluation consistent with RG 1.97 guidance and is, therefore, acceptable.
2.3: HPl Pumo Run Status
' During emergency operations, two ES selected HPI pumps are designed to automatically start.
The EOPs contain actions for operators to verify the HPl pump (s) operating status during several evolutions. During certain LOCA scenerios, the HPl pump run status is necessary to comply with required EOP actions for opening HPl pump recirculation valves to protect the necessary HPI pump (s) from damage due to flow conditions. The EOPs specify different minimum HPl pump flow rates for opening HPl pump recirculation valves depending on the number of operating HPl pumps.
The licensee proposed a monthly channel check for the main control board indicating light and the ES Light Matrix indicator for each pump. Since the indicating lights have no adjustment and provide only on-off indication, a channel calibration SR is not meaningful. Instead, the licensee proposed to add SR 3.3.17.3, " Channel Functional Test." The new SR will be
. performed on a 24-month frequency. The Channel Functional Test involves injecting a signal into the channel as close to the sensor as practicable to verify operability of the switch contacts. The 24-month frequency is consistent with the SR for PAM Instrumentation Funchon 6, HPI Flow, in Table 3.3.17-1.
The licensee has classified and evaluated the HPI pump run status as a Type A Category i variable in accordance with guidance delineated in RG 1.97. The staff finds the licensee's evaluation consistent with RG 1.97 guidance, and is therefore ~ acceptable.
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2.4 '
RCS Low Ranos Pressure'-
In several contingency actions, the EOPs use RCS pressure to verify automatic operation of
- emergency core cooling systems. Current PAM instrumentation for RCS pressure (Wide
' Range) covers the entire range from 0-3000 psig. During post-accident conditions, low pressure injection operation is more accurately verified by monitoring the RCS Pressure (Low.
Range) instrumentation that displays RCS pressures from 0-600 psig.
The licensee has determined that the RCS low range pressure instrumentation will be' subject to a monthly channel check and 24-month channel calibration as described in the existing SR 3.3.17.1.,This SR is the same as for PAM instrumentation Function 3, RCS Pressure (Wide Range), Table 3.3.17-1.
The licensee has classified and evaluated the RCS low range pressure as Type B Category 1 variable in accordance with guidance delineated in RG 1.97. The staff finds the licensee's evaluation consistent with RG 1.97 guidance, and is therefore acceptable.
3.0 STATE CONSULTATION
Based upon a letter dated March 8,1991, from Mary E.' Clark of the State of Florida, Department of Health and Rehabilitative Services, to Deborah A. Miller, Licensing Assistant, U.S. NRC, the State of Florida does not desire notification of issuance of license amendments.
4.0 E_NVIRONMENTAL CONSIDERATIONS The amendment changes requirements with respect to installation or use of a facility component located within the restricted area as defined in 10 CFR Part 20. The NRC staff has determined that the amendments involve no significant increase in the amounts, and no significant change in the types, of any effluents that may be released offsite, and that there is no significaat increase in individual or cumulative occupational radiation exposure. The Commission has previously issued a proposed finding that this amendment involves no
- significant hazards consideration and there has been no public comment on such finding (63 FR 56250). Accordingly, the amendment meets the eligibility criteria for categorical -
exclusion set forth in 10 CFR 51.22(c)(9). Pursuant to 10 CFP. 51.22(b), no environmental impact statement or environmental assessment need be prepared in connection with the issuance of the amendment.
5.0 CONCLUSION
Based on the above evaluation, the staff concludes that the proposed additions to the PAM instrumentation functions and corresponding TS changes are consistent with the guidance in RG 1.97, and are therefore acceptable.
Principal Contributor. A. Bryant Date: Jime 3,1999 1
Mr. John Paul Cowan CRYSTAL RIVER UNIT NO. 3 Florida Power Corporation cc:
Mr. R. Alexander Glenn Chairman Corporate Counsel (MAC-BT15A)
Board of County Commissioners Florida Power Corporation Citrus County P.O. Box 14042 110 North Apopka Avenue St. Petersburg, Florida 33733-4042 Inverness, Florida 34450-4245 Mr. Charles G. Pardee, Director Ms. Sherry L. Bernhoft, Director Nuclear Plant Operations (PA4A)
Nuclear Regulatory Affairs (NA2H)
Florida Power Corporation Florida Power Corporation Crystal River Energy Complex Crystal River Energy Complex 15760 W. Power Line Street -
15760 W. Power Line Street Crystal River, Florida 34428-6708 Crystal River, Florida 34428-6708 Mr. Michael A. Schoppman Senior Resident inspector Framatome Technologies Inc.
Crystal River Unit 3 1700 Rockville Pike, Suite 525 U.S. Nuclear Regulatory Commission Rockville, Maryland 20852 6745 N. Tallahassee Road Crystal River, Florida 34428 Mr. William A. Passetti, Chief Department of Health Mr. Gregory H. Halnon Bureau of Radiation Control Director, Quality Programs (SA2C) 2020 Capital Circle, SE, Bin #C21 Florida Power Corporation Tallahassee, Florida 32399-1741 Crystal River Energy Complex 15760 W. Power Line Street Attorney General Crystal River, Florida 34428-8708 Department of Legal Affairs The Capitol Tallahassee, Florida 32304 Mr. Joe Myers, Director I
Division of Emergency Preparedness Department of Community Affairs 2740 Centerview Drive Tallahassee, Florida 32399-2100 l
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