ML20249B418

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Proposed Tech Specs 3.7.6 Re Control Room Emergency Makeup Air & Filtration Subsystem
ML20249B418
Person / Time
Site: Seabrook NextEra Energy icon.png
Issue date: 06/17/1998
From:
NORTH ATLANTIC ENERGY SERVICE CORP. (NAESCO)
To:
Shared Package
ML20249B417 List:
References
NUDOCS 9806230071
Download: ML20249B418 (4)
v • d • e


Text

-__- ______ __________ ____ ___________ __- - _-__-_-___________ _______________ _ _ _ _ -

PLANT SYSTEMS f

3/4.7 6 CONTROL ROOM SUBSYSTEMS

  1. l H??3ENCYMAKEUPAIRANDFilTRAT10N LIMITING CONDITION FOR OPERATION i 3.7.6.1 Two independent Control Room Emergency Makeup Air and Filtration Subsystems shall be OPERABLE.

APPLICABILITY: All MODES ACTION:

MODES 1, 2. 3 and 4:

With one Control Room Emergency Makeup Air and Filtration Subsystem inoperable, restore the inoperable system to OPERABLE status within 7 days or be in at least HOT STANDBY 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

MODES 5 and 6
a. With one Control Room Emergency Makeup Air and Filtration Subsystem inoperable, restore the inoperable system to OPERABLE status within

< 7 days or initiate and maintain operation of the remaining OPERABLE Control Room Emergency Makeup Air and Filtration Subsystem in the filtration / recirculation mode,

b. With both Control Room Emergency Makeup Air and Filtration Subsystems inoperable, or with the OPERABLE Control Room Emergency Makeup Air and Filtration Subsystem. required to be in the i  ;!

filtration / recirculation mode by ACTION a.. not capable of being l powered by an OPERABLE emergency power so ,ce. suspend all o>erations involving CORE ALTERATIONS sJtWFrpactiv)tyf - l' W

SURVEILLANCE RFOUIREMENTS

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4.7.6.1 Each Control Room Emergency Makeup Air and Filtration Subsystem shall be demonstrated OPERABLE:

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a. At least once per 31 days on a STAGGERED TEST BASIS by initiating. L) from the control room. flow through the HEPA filters and charcoal i ~

_ adsorbers and verifying that the system operates for at least 10 continuous hours with the heaters operating:

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! 9806230071 900617 l PDR ADOCK 05000443 P PDR i SEABROOK - UNIT 1 3/47-1g Amendment No. 5

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PLANT SYSTEMS i 2/4.7.6 CONTROL ROOM SUBSYSTEMS AIR CONDITIONING tl LIMITING CONDITION FOR OPERATION l l

3.7.6.2 Two independent Control Room Air Conditioning Subsystems shall be 1 OPERABLE.

APPLICABIL ITY: All MODES ACTION:

MODES 1. 2. 3 and 4:

With one Control Room Air Conditioning Subsystem inoperable. restore the inoperable system to OPERABLE status within 30 days or be in at least HOT STANDBY 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. -

MODES 5 and 6:

a. With one Control Room Air Conditioning Subsystem ino)erable, restore the inoperable system to OPERABLE status wit 11n 30 days or initiate and maintain o ration of the remaining OPERABLE Control
w Room Air Conditioning S bsystem or immediately suspend all b oxrations involving CORE ALTERATION 5foVposKiverepetivjtp g
b. With both Control Room Air Conditioning Subsystems inoperable, or

! ! with the OPERABLE Control Room Air Conditioning Subsystem unable to

' maintain temperature below the limiting equipment qualification' temperature in the control rJom area. suspend all operations g involving CORE ALTERATIONSgpositive"reactmty the SURVEILLANCE REQUIREMENTS 4.7.5.2 Each Control Room Air Conditioning Subsystem shall be demonstrated OPERA 5LE at least once per 92' days by verifying the ability to maintain temperature in the control room area below the limiting equipment qualification j temperature for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

h SEABROOK - UNIT 1 3/4 7-1Ba AmendmentNo.p

, PLANT SYSTEMS 3/4.7 6 CONTROL ROOM SL',3YSTEMS EMERGENCY i%KEUP AIR AND FILTRATION LIMITING CONDITION FOR OPERATION 3.7.6.1 Two inde)endent Control Room Emergency Makeup Air and Filtration Subsystems shall )e OPERABLE.

APPLICABILITY: All MODES ACTION:

MODES 1. 2. 3 and 4:

-With one Control Room Emergency Makeup Air and Filtration Subsystem inoperable, restore the ino)erable system to OPERABLE status within 7 days or be in at.

.least' HOT STAND 3Y 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

. MODES 5 and 6:

a. With one Control Room Emergency Makeup Air and Filtration Subsystem inoperable, restore the inoperable system to OPERABLE status within 7 days or initiate and maintain operation of the remaining OPERABLE Control Room Emergency Makeup Air and Filtration Subsystem in the-filtration / recirculation mode,
b. With both Control Room Emergency-Makeu) Air and Filtration Subsystems inoperable, or with the OPERABLE Control Room Emergency Makeup Air and Filtration Subsystem, required to be in the filtration / recirculation mode by ACTION a.. not capable of being powered by an OPERABLE emergency power source, suspend all l operations involving CORE ALTERATIONS.

SURVEILLANCE REQUIREMENTS

)

4.7_.6.1 Each Control Room Emergency Makeup Air and Filtration Subsystem shall be demonstrated OPERABLE:

a. At least once per 31 days on a STAGGERED TEST BASIS by initiating, from the control room, flow through the HEPA filters and charcoal

- adsorbers and verifying that the system operates for at least 10 continuous hours with the heaters operating L, l l

I I

SEABROOK UNIT 1 3/4 7-16 Amendment No. 1

. PLANT SYSTEMS

~

3/4.7.6 CONTROL ROOM SUBSYSTEMS AIR CONDITIONING LIMITING CONDITION FOR'0PERATION 3.7.6.2 Two independent Control Room Air Conditioning Subsystems shall be

-OPERABLE.

APPLICABILITY: All MODES ACIION:

MODES 1. 2. 3 and 4:

With.one Control Room Air Conditioning Subsystem inoperable, restore the -

ino)erable system to OPERABLE status within 30 days or be in at least HOT STA9DBY 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 SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

MODES 5 and 6:

a. With one Control Room Air Conditioning Subsystem ino)erable, restore the inoperable system to OPERABLE status wit 11n 30 days or initiate and maintain operation of the remaining OPERABLE Control Room Air Conditioning Subsystem or immediately suspend al1 operations involving CORE ALTERATIONS.
b. With both Control Room Air Conditioning Subsystems inoperable, or with the OPERABLE Control Room Air Conditioning Subsystem unable to maintain temperature below the limiting equipment qualification temperature in the control room area, suspend all operations involving CORE ALTERATIONS.

SURVEILLANCE REQUIREMENTS 4.7.6.2 Each Control Room Air Conditioning Subsystem shall be demonstrated OPERABLE at least once per 92 days by verifying the ability to maintain temperature in the control room area below the limiting equipment qualification temperature for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

1 SEABROOK - UNIT 1- 3/4 7-18a Amendment No.

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