ML20116K756

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Proposed TS Section 3/4.6.6 Re LCO for Containment Atmosphere Control Standby Gas Treatment Sys
ML20116K756
Person / Time
Site: Hatch 
Issue date: 11/10/1992
From:
GEORGIA POWER CO.
To:
Shared Package
ML20116K754 List:
References
NUDOCS 9211170361
Download: ML20116K756 (4)
v • d • e


Text

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ENCLOSURE 3 PLANT LATCH - UNIT 2 NRC DOCKET 50-366 OPERATING LICENSE NPF-5 REQUEST FOR TEMPORARY TECHNICAL SPECIFICATION REVISION:

ALLOW UNIT 1 STANDBY GAS TREATMFNT SYSTEM IN0PERABILITY FOR INSTALLATION Of TORUS HARDENED VENT E8C TAC NOS. M74869 AND M74870 PAGE CHANGE INSTRUCTIONS The proposed change to the Plant Hatch Unit 2 Technical Specifications will be incorporated as follows:

Remove Pa.gg Jnf rt Pagg 3/4 6-40 3/4 6-40 3/4 6-41 3/4 6-41 t

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-004125 l-HL-2962 7-1 9211170361 921110 PDR ADOCK ODOOO366 P>

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.p, CONTAINMENT SY$1tMS a.

=)/4.6.6 CONTAINMENT ATMOSPHERf CONTROL STANDBY CAS TRf.! MENT SYSIQj LIMITING COWITION f08t OPERATION 3.6.6.1 Two Hatch-Unit 2 independent standby gas treatment subsystems and two Hatch-Unit 1 independent standby gas treatment subsystems shall be OPERABLE.

APPLICABILITY: CONDITIONS 1, 2, 3, and *.

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With one of the above recuired standby gas treatment subsystems inoperatie, restore the inoperable subsvLtem to OPERABLE status within 7 days or be in at least HOT $HUTuvWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> 1

and in (OLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.

With two or more of the above required standby is treatment subsystems ine erable be in at least HOT $HUIDOWN within z hours and in COLD SH'i!DOWNw!thinthenext24 hours,exceptasalowedbyActionc, c.

With both of the Hatch-Unit I indeoendent standby gas treatment subsystems inoperable for installation of the Unit I torus hardened vent, unit 2 l

operation may continue for a cumulative total of up to 7 days provided all of the following requirements are met:

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1.

Prior to removing either Unit I standby ans trsatment subsystem from

-service, demonstrate that a neastive pretfure can be maintained in the Unit 2 secondary containment and the Unit I modified secondary contait, ment under the following conditions:

The Unit I secondary containment is in the modified mode.

Both Unit 2 standby ont treatment subsystems are aligned with suction from both of ific subject areas and are operating with each filter train flow rate not more than 4000 cfm.

Calm wind conditions (< 5 mph) exist.

2.

Maintain both Unit 2 standby gas treatment subsystems OPERABLE.

3.

Maintain Unit 2 secondary containment integrity, except for Unit I standby gas treatment system OPERABilliY requirements.

4.

Maintain Unit I modified secondary containment integrity, except for Unit I standby gas treatment system OPERABILITY reuniraments.

5.

Allow no Unit 1 CORE ALTERATIONS.

Allownahandlingofirraparycontainmentlated fuel or spent fuel shipping casks in 6.

the modified Uni 1 secon if both Unit I stantby gas treatment subsystems are not restored to OPERABLE status within the allowable cumulative time period of 7 days or. if any of the above requirements cannot be met, be in at least HOT SHUTDONN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

$URVEILLANCE RE001PEMENTS 4.6.6.1.1 Each Hatch Unit 2' standby gas treatnent subsystem shall be demonstrated OPERABLE:

l}yinitiatingbarcoaladsorbersandverifyingthatthesystem from the control room, flow through the HEPA a,

Oters and c egeratesforatleastatotalo{l0hourseach31dayswith.

t e heaters on automatic contro b.

At least once per 18 months or (1) after an structural main-tenance on the HEPA filter or charco41 adso ber housings, or following painting (2)ionzonecommunicatlngwiththesystemby: fire or chemical rt ease in any venti-lat 1.

Verifying that the cleanup system satisfies the in-place testing acceptance criteria and uses the test procedures

~of Reaulatory Positions C.S a C 5.c and C.S.d of Regula-tory Guide 1.52 Revision I duly 1976,andthesystem flow rate is 4000+0,-1000cfm.

2.

Verifying within 31 days after removal that a lWratory.

analysis of a representative carbon sample obtained in accordance with Regulato Position ~C.6.b of Regulatory Guide 1.52 Revision.1, ly 1976,ition C.6.a of Regula-meets the laboratory

.testingcrIteriaofkecu tory Pos tory Guide 1.$2, Revision 1 Duly 1976.

  • When performin inservice h tatic or leak testing with the reactor coo ant temper ture above 2 liATCH - UNIT 2

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~ CONTAHENT SYSTEMS 3/4.6.6 CONTAINMENT ATMO5PHERE CONTROL l

STANDBY GAS TREATMENT SYSTEM

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LIMITING CONDITION FOR OPERATION

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~3.6.6.1 Two Hatch-Unit 2 independent standby gas treatment subsystems and two Hatch-Unit'1 independent standby gas treatment subsystems shall

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be' OPERABLE.

e APPLICABILITY:

CONDITIONS 1, 2, 3, and *.

ACTION:

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a.

With one of the above required standby gas treatment subsystems inoperable, restore the inoperable subsystem to OPERABLE status within 7 days or be in at least HOT $HUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

i b.

With two or more of the above required standby gas treatment subsystems inoperable, be in at least HOT SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD

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SHUTDOWN within the next 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />sy - tyr//r 4 5 f u oW4 #/ g ewd c,.

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SURVEILLANCE REQUIREMENTS 4.6.6.1.1 Each Hatch-Unit 2 standby gas treatment subsystem shall be

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demonstrated OPERABLE:

a.

By initiating, from the control room, flow through the HEPA filters and charcoal adsorbers and verifying that the system operates for at least a total'of 10 hours1.157407e-4 days <br />0.00278 hours <br />1.653439e-5 weeks <br />3.805e-6 months <br /> each 31 days with p

the heaters on automatic control.

1 b.

At least once perJ8 months or (1) after any structural main-4enance on the NEPA filter or 1 charcoal adsorber housings, or L

(2) following painting, fire or chemical release in any venti-

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1ation zone communicating with the system by:

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1.

Verifying that the cleanup system satisfies the in place l

testing acceptance criteria and sses the test procedures

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of Regulatory Positions C.S.a. C.S.c and C.5.d of-Regula-tory Guide 1.52, Revision 1, July 1976, and the system l

flow rate is 4000 + 0, -1000 cfa.

I 2.

Verifying within 31 days after removal that a laboratory L

f analysis of a representative carbon sample obtained in J

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accordance with Regulatory Position C.6.b of Regulatory l-Guide 1.52, Revision 1, July 1976, meets the. laboratory testing criteria of Regulatory Position C.6.a of Reguia-tory Guide 1.52, Revision 1. July 1976.

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- When performing inservice hydrostatic or leak testing with the reactor coolant temperature above 212'F.

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- UNIT 2 5/4 6. l)Cc,C '73-/>

Amendment No. 91

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With both of the Hatch-Unit 1 independent standby gas treatment f

subsystems inoperable for installation of the Unit I torus hardened vent, Unit 2 operation may continue for a cumulative total of up to 7 days provided all of the following requirements are met:

1.

Prior to removing either Unit I standby gas treatment subsystem i

from service, demonstrate that a negative pressure can be

- i maintained in the Unit 2 secondary containment and the Unit 1 modified secondary containment under the following conditions:

j o

The Unit I secondary containment is in the modified mode.

o Both Unit 2 standby gas treatment subsystems are aligned with

- i suction from both of the subject areas and are operating with each filter train flow rate not more than 4000 cfm.

o Calm wind conditions (< 5 mph) exist.

2.

Maintain both Unit 2 standby gas treatment subsystems OPERABLE.

3.

Maintain Unit 2-secondary containment integrity, except for Unit 1 standby gas treatment system OPERABILITY requirements.

4, Maintain Unit 1 modified secondary containment integrity, except for Unit I standby gas treatment system OPERABILITY requirements.

9 5.

All?w no Unit 1 CORE ALTERATIONS.

6.

Allow no handling of irradiated fuel or spent fuel shipping casks in the inodified Unit I secondary containment.

If both Unit I standby gas treatment-subsystems are not restored to l

OPERABLE status within the allowable cumulative time period of 7 days, I

or if any of the above requirements cannot be met,- be in at least HOT SHU100kN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and-in COLD SHUTDOWN within the' following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

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