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> PDR

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a. , CONTAINMENT SY$1tMS

=)/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 *. l M11LLD

a. 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 1 of the following requirements are met: )
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: ,

  • 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.

6.

Allownahandlingofirraparycontainmentlated the modified Uni 1 secon fuel or spent fuel shipping casks in 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:

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

.testingcrIteriaofkecu tory ly 1976,ition Pos C.6.a of Regula-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 --3/4 6-40 K:\wp\techsp\h\92-17U2/91

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~ CONTAHENT SYSTEMS

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3/4.6.6 CONTAINMENT ATMO5PHERE CONTROL l l STANDBY GAS TREATMENT SYSTEM j

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[i 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 be' OPERABLE.

,}  ;

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

ACTION:

)

! 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

~

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, .

SURVEILLANCE REQUIREMENTS

/25e secMY}4c.4 i 4.6.6.1.1 Each Hatch-Unit 2 standby gas treatment subsystem shall be )

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-

?

i 1ation zone communicating with the system by:

i 1. Verifying that the cleanup system satisfies the in place l testing acceptance criteria and sses the test procedures )

, 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 l + 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.

I

-*When performing inservice hydrostatic or leak testing with the reactor '

coolant temperature above 212'F. '

. l)Cc,C '73-/> .

HAT - UNIT 2 5/4 6 Amendment No. 91

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c. 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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