ML20137F993

Proposed Revs to Tech Spec Tables 3.2-1 & 4.2-1 Re Purge/Vent Valve Isolation

ML20137F993
Person / Time
Site:	Hatch
Issue date:	08/20/1985
From:	GEORGIA POWER CO.
To:
Shared Package
ML20137F982	List: ML20137F976 ML20137F993
References
TAC-56049, TAC-59542, NUDOCS 8508270143
Download: ML20137F993 (3)

Text

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ENCLOSURE 4

, NRC DOCKET 50-321 OPERATING LICENSE DPR-57 EDWIN I. HATCH NUCLEAR PLANT UNIT 1 REQUEST TO REVISE TECHNICAL SPECIFICATIONS

. PURGE / VENT ISOLATION The proposed change to the Hatch Unit 1 Technical Specifications 7 - (Appendix A to-Operating License DPR-57) would be incorporated as follows:

Remove-Page Insert Page 3.2-3 3.2-3 3.2-25 3.2-25 t

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Table 3.2-1 (Cont.)

_ Req.lired Operable Action to be taken if Ref. Trip Channels rumber of channels is No, Condition per Trip .

not met for both trip (c) Instrument Nomenclature System (b) Trip Setting systems (c) Remarks (d) 5 Main Steam Line Iow 2 __825

> psig Initiate an orderly load Initiates Group 1 isolation.

Presaire re&ction and close Only realired in RUN mode, MSIVs within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />. therefore activated when Mode Switch is in RUN position.

6 Main Steam Line High 2 1 140% rated flow Initiate an orderly load Initiates Group 1 isolation.

Flow ( 1120 psid) re&ction and close MSIVs within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

7 Main Steam Line High 2 12000F Initiate an orderly load Initiates Group 1 isolation.

'Illnnel Tenperature re&ction and close MSIVs within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

F y8 Reactor Water High 1 20-80 gpm Isolate reactor water Final trip setting will be u Cleamp System cleamp system. determined during startup Differential Flow test program.

9 Reactor Water High 2 100-1500F Isolate reactor water Final trip setting will be Cleamp F41ipnent cleamp system. determined & ring startup Room Temperature test program.

10 Reactor Water High 2 0-1000F Isolate reactor water Final trip setting will be Clearup F41ipment cleamp system determined durirn startup Room Differential test program.

Temperature 11 Condenser Vacuum Iow 2 17" Hg. vacuum Initiate an orderly load Initiate Group 1 isolation.

re&ction and close MSIVs within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />.

12 Drywell Radiation High 1 1138 RAIR. Close the affected Isolates containment purge isolation valves within and vent valves 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in Hot Shitdown within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in Cold Shitdown within the next 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Table 4.2-1 (Cont'd)

Ref. Instmment Oeck Instmment Rinctional Test Instrument Calibration No. Instrument Minim 1m Freq1ency Minim 1m Freq2ency Mininum Freolency Ja)_ (b) (c) 10 Reactor Water Cleanup None (d) Every 3 months Eolipment Room Differential Tenperature 11 Condenser vacuum None (d) D>ery 3 months 12 Drywell Radiation Once/ Day Once/ Month Once/ Operating Cycle Notes for Table 4.2-1

a. The column entitled "Ref. No." is only for convenience so that a one-to-one relationship can be established between items in Table 4.2-1 and items in Table 3.2-1.

b. Instrument functional tests are not req 11 red when the instruments are not reglired to be operable or are h tripped. However, if functional tests are missed, they shall be performed prior to retu rning the

• instrument to an operable status,

c. Calibrations are not realired when the instruments are not realired to be operable. However if calibrations are missed, they shall be performed prior to returning the instrument to an operable status,

d. Initially once per month or according to Figure 4.1-1 with an interval of not less than one month nor more than three months. 'Ihe conpilation of instrument failure rate date may include data obtained

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