ML20206M096

Proposed Tech Specs,Revising Wording for SR 3.5.2.5 to Be More Consistent with NUREG-1430,Rev 1 & Clarifying Process of Valve Position Verification

ML20206M096
Person / Time
Site:	Crystal River
Issue date:	05/07/1999
From:	FLORIDA POWER CORP.
To:
Shared Package
ML20206M087	List: 3F0599-01, Rev 1 to LAR 241 for Amend to License DPR-72,revising Wording for SR 3.5.2.5 to Be More Consistent with NUREG-1430,rev 1 & Clarifying Process of Valve Position Verification ML20206M096
References
RTR-NUREG-1430 NUDOCS 9905140191
Download: ML20206M096 (3)

Text

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FLORIDA POWER CORPORATION CRYSTAL RIVER UNIT 3 DOCKET NO. 50-302/ LICENSE NO. DPR-72 ATTACHMENT B L

LICENSE AMF,NDMENT REQUEST #241, REVISION 1 HIGH PRESSURE INJECTION SYSTEM MODIFICATIONS Proposed Revised Improved Technical Specifications aind Bases Pages l

P PDR

ECCS-Operating

,- 3.5.2 SURVEILLANCE REQUIREMENTS SURVEILLANCE FREQUENCY SR 3.5.2.1- Verify each ECCS manual, power operated, 31 days and automatic valve in the flow path, that is not locked, sealed, or otherwise secured

-in position, is in the correct position.

SR 3.5.2.2 Verify each ECCS pump's developed head at In accordance the test flow point is greater than or with the equal to the required developed head. Inservice Testing Program  ;

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SR 3.5.2.3 Verify each ECCS automatic valve in the 24 months flow path that is not locked, sealed, or otherwise secured in position, actuates to the correct position on an actual or simulated actuation signal.

SR 3.5.2.4 Verify each ECCS pump starts automatically 24 months on an actual or simulated actuation signal.

SR 3.5.2.5 Verify the following valves in the HPI flow 24 months path are locked, sealed or otherwise secured in the correct position-l

a. MUV-2;

b. MUV-6;

c. MUV-10; l

d. MUV-590;

e. MUV-591;

f. MUV-592; and

g. MUV-593.

(continued)

Crystal River Unit 3 3.5-5 Amendment No.

of - a ECCS-Operating B 3.5.2 BASES SURVEILLANCE SR 3.5.2.5 REQUIREMENTS (continued) Verification of the positions of the listed valves in the l HPI flowpath ensures adequate flow resistance in the overall system and the individual HPI lines. Maintenance of adequate flow resistance and pressure drop in the piping system for each injection point is necessary in order to:

(1) provide the proper flow split between injection points in accordance with the assumptions used in the ECCS LOCA analyses; (2) provide an acceptable level of total ECCS flow to all injection points equal to or above values assumed in the ECCS LOCA analyses; (3) ensure adequate cooling flow to the HPI pump mechanical seals; and (4) prevent HPI pump flow from exceeding 600 gpm when the system is in its minimum resistance configuration (600 gpm is the maximum HPI pump flow rate assumed in design calculations associated with Emergency Diesel Generator loading, ECCS pump available NPSH, and makeup tank (MUT-1) allowable overpressure versus level). This 24 month Frequency is acceptable based on consideration of the design reliability of valves that are locked, sealed, or otherwise secured in position.

Verification of correct valve position will be accomplished by assuring the mechanism that locks, seals or secures the valves is intact. If the stop check valves or throttle valves are repositioned, the valves must be returned to their correct position and then secured. This "as-left" position verification ensures the HPI flow assumptions in the accident analysis are maintained, l

SR 3.5.2.6 This Surveillance ensures that the flow controllers for the LPI chrottle valves will automatically control the LPI train flow rate in the desired range and prevent LPI pump runout as RCS pressure decreases after a LOCA. The 24 month Frequency is acceptable based on consideration of the design reliability (and confirming operating experience) of the equi pment .

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(continued)

Crystal River Unit 3 8 3.5-18 Amendment No.

a