ML14183A379

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Amend 179 to License DPR-23,revising TS 3.7.8, UHS, to Permit 8-hr Delay in UHS Temp Restoration Period Prior to Entering Plant Shutdown Required Actions
ML14183A379
Person / Time
Site: Robinson 
Issue date: 07/29/1998
From: Kuo P
NRC (Affiliation Not Assigned)
To:
Shared Package
ML14183A381 List:
References
NUDOCS 9807310067
Download: ML14183A379 (8)


Text

UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTbN, D.C. 20555-001 CAROLINA POWER & LIGHT COMPANY DOCKET NO. 50-261 H. B. ROBINSON STEAM ELECTRIC PLANT, UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.

179 License No. DPR-23 1.

The Nuclear Regulatory Commission (the Commission) has found that:

A.

The application for amendment filed by Carolina Power & Light Company (the licensee), dated June 26, 1998, as supplemented on July 22, 1998, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations set forth in 10 CFR Chapter B. The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C. There is reasonable assurance (i) that the activities authorized by this amendment can be. conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulati6ns; D. The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E. The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

2.

Accordingly, the license is amended by changes to the Technical Specifications, as indicated in the attachment to this license amendment; and paragraph 2.C.(2) of Facility Operating License No. DPR-23 is hereby amended to read as follows:

9807310067 980729 PDR ADOCK 05000261 H

P PDR

(2) Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 179, are hereby incorporated in the license. Carolina Power &

Light Company shall operate the facility in accordance with the Technical Specifications.

3.

This license amendment is effective as of the date of its issuance and shall be implemented within 30 days of issuance.

FOR THE NUCLEAR REGULATORY COMMISSION P.T.JKuo, Acting Director Project Directorate II-1 Division of Reactor Projects - 1/11 Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance: July 29, 1998

ATTACHMENT TO LICENSE AMENDMENT NO. 179 FACILITY OPERATING LICENSE NO. DPR-23 DOCKET NO. 50-261 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages. The revised areas are indicated by marginal lines.

Remove Pages Insert Pages 3.7-21 3.7-21 3.7-21 a B 3.7-50 B 3.7-50 B 3.7-50a B 3.7-51 B 3.7-51

UHS 3.7.8 3.7 PLANT SYSTEMS 3.7.8 Ultimate Heat Sink (UHS)

LCO 3.7.8 The UHS shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3. and 4.

ACTIONS


NOTES-------------------

1. Conditions A and B and associated Required Actions and Completion Times shall only be applicable prior to, and on September 30, 1998.
2. Condition C and associated Required Actions and Completion Times shall only be applicable after September 30, 1998.

CONDITION REQUIRED ACTION COMPLETION TIME A.

Service water A.1 Restore service water 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> temperature temperature to

> 950F.

s 950F.

AND A.2 Verify service water 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> temperature is 5 990F.

AND Once per hour thereafter (continued)

HBRSEP Unit No. 2 3.7-21 Amendment No. 176,179

UHS 3.7.8 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B.

Required Action B.1 Be in MODE 3.

6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and Completion Time of Condition AND A not met.

B.2 Be in MODE 5.

36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> OR UHS inoperable for reasons other than Condition A.

C.

UHS inoperable.

C.1 Be in MODE 3.

6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> AND C.2 Be in MODE 5.

36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br /> SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.7.8.1 Verify water level of UHS is a 218 ft mean 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> sea level.

SR 3.7.8.2 Verify service water temperature is s 950F. 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> HBRSEP Unit No. 2 3.7-21a Amendment No. 146,179

0uHs B 3.7.8 BASES APPLICABLE The UHS satisfies Criterion 3 of the NRC Policy Statement.

SAFETY ANALYSES (continued)

LCO The UHS is required to be OPERABLE and is considered OPERABLE if it contains a sufficient volume of water at or below the maximum temperature that would allow the SWS to operate for at least 22 days following the design basis LOCA without the loss of NPSH, and without exceeding the maximum design temperature of the equipment served by the SWS. To meet this condition, the UHS temperature should not exceed 950F and the level should not fall below 218 ft MSL during normal unit operation.

APPLICABILITY In MODES 1, 2, 3, and 4. the UHS is required to support the OPERABILITY of the equipment serviced by the UHS and required to be OPERABLE in these MODES.

In MODE 5 or 6, the OPERABILITY requirements of the UHS are determined by the systems it supports.

ACTIONS Notes 1 and 2 have been added in the ACTIONS to provide a clear expiration date for Conditions A and B and associated Required Actions and Completion Times, and a date that Condition C and its associated Required Actions and Completion Times will become applicable. Prior to midnight October 1, 1998, if the LCO is not met, refer to Conditions A or B and associated Required Actions and Completion Times.

On midnight October 1, 1998, and thereafter, refer only to Condition C if the LCO is not met.

A.1 When service water temperature is greater than 950F, it must be restored to 5 950F within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. This Required Action is necessary to return operation to within the design basis of the Service Water System. The 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> Completion Time is acceptable considering the low probability of a Design Basis (continued)

HBRSEP Unit No. 2 B 3.7-50 Revision No. 0,1 Amendment No. 179

0 UHS B 3.7.8 BASES ACTIONS A.1 and A.2 (continued)

Accident occurring during this period and allows a reasonable time for diurnal effects to act upon the UHS.

The service water temperature must be monitored more frequently to ensure service water temperatures stay at or below 990F so that no loss of function occurs for equipment cooled by the UHS. The Completion Time of 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> is reasonable considering the limited time that Required Action A.1 allows the service water temperature limit to be exceeded in conjunction with the generally slow rate of temperature increase experienced from thermal changes in Lake Robinson.

B.1 and B.2 If Required Actions A.1 and A.2 and Completion Times are not met or the UHS is inoperable for reasons other than Condition A, the unit must be placed in a MODE in which the LCO does not apply. To achieve this status, the unit must be placed in at least MODE 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in MODE 5 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems.

C.1, and C.2 If the UHS is inoperable, the unit must be placed in a MODE in which the LCO does not apply. To achieve this status, the unit must be placed in at least MODE 3 within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in MODE 5 within 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full. power conditions in an orderly manner and without challenging unit systems.

(continued)

HBRSEP Unit No. 2 B 3.7-50a Revision No. 0,1 Amendment No. 179'

())UHS B 3.7.8 BASES (continued)

SURVEILLANCE SR 3.7.8.1 REQUIREMENTS This SR verifies that adequate long term (22 day) cooling can be maintained.

The specified level also ensures that sufficient NPSH is abailable to operate the SWS pumps. The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Frequency is based on operating experience related to trending of the parameter variations during the applicable MODES. This SR verifies that the UHS water level is a 218 ft MSL.

SR 3.7.8.2 This SR verifies that the SWS is available to cool the CCW System to at least its maximum design temperature with the maximum accident or normal design heat loads for 30 days following a Design Basis Accident. The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> Frequency is based on operating experience related to trending of the parameter variations during the applicable MODES.

This SR verifies that the service water temperature is s 950F.

REFERENCES

1. UFSAR, Section 9.2.4.
2. UFSAR Section 2.4.6.1.
3. UFSAR Section 2.1.1.2.
4. NUREG-75/024, "Final Environmental Statement Related to the Operation of H. B. Robinson Nuclear Steam-Electric Plant Unit 2," U. S. Nuclear Regulatory Commission, Washington DC 20555, April 1975, page 3-7.
5. USGS Historical Daily Values for Station Number 02130900, Black Creek Near McBee, South Carolina, Years 1960-1993.

HBRSEP Unit No. 2 B 3.7-51 Revision No. 0,1 Amendment No. 179