GO2-85-642, Proposed Tech Specs,Modifying Surveillance Requirement 4.6.1.8.2 to Allow Individual Valves to Temporarily Exceed L(A) Limit on Emergency Basis
| ML17278A415 | |
| Person / Time | |
|---|---|
| Site: | Columbia  |
| Issue date: | 09/26/1985 |
| From: | WASHINGTON PUBLIC POWER SUPPLY SYSTEM |
| To: | |
| Shared Package | |
| ML17278A414 | List: |
| References | |
| GO2-85-642, TAC-59750, NUDOCS 8510030038 | |
| Download: ML17278A415 (6) | |
Text
COHTAIHMEHT SYSTEMS DRYWELL AND SUPPRESSION CHAMBER PURGE SYSTEM LIMITIHG CONDITION FOR OPERATION t
3.6.1.8 The drywell and suppression chamber purge system may be in operation with the drywell and/or'uppression chamber purge supply and exhaust butterfly.
isolation valves open for inerting, deinerting, or pressure control, provided that each butterfly valve is blocked so as not to open more than 70.
PURGING through the Standby Gas Treatment System shall be restricted to less than or equal to. 90 hours0.00104 days <br />0.025 hours <br />1.488095e-4 weeks <br />3.4245e-5 months <br /> per 365 days.
APPLICABILITY:
OPERATIONAL CONDITIONS 1, 2, and 3.
ACTION:
a.
With a drywell and/or suppression chamber purge supply and/or exhaust butterfly isolation valve open for other than inerting, deinerting, or pressure control, or not blocked to less than or equal to 700
- open, close the butterfly valve(s) within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or be in't least HOT SHUTDOWN within the next 12 hour~ 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 />.
b.
With a drywell and suppression
@qq5er purge supply and/or exhaust isolation valve(s) 'with resilj6'n&material seals having a'easured leakage rate exceeding'he IimT+of Surveillance Requirement
- a. 6. 1.8. 2, restore the inoperable valy sg to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least NOT SNUTOON+Pithin 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 fol oP~eg 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.
SURYEILLANCE RE UIRENENTS 4.6.1.8e1 Mhen being opened, the drywell and suppression chamber purge supply and exhaust butterfly isolation valves shall be verified to be blocked so as to open to less than or equal to 70'pen, unless so verified within the previous 31 days.
4.6.1.8.2 At least once per 6 months on a STAGGERED TEST BASIS each 24-and 30-inch drywell and suppression chamber purge supply and exhaust isolation valve with resilient material seals, shall be demonstrated OPERABLE by verifying that the measured leakage rata is less than oI equal to 0.05 L
when pressurized to P
8510030038 850926 l
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" September 26, 1985 G02-85-642 ATTACHMENT 4.6.1.8.2 At least once per 6 months, on a
STAGGERED TEST BASIS, each 24-and 30-inch drywell and suppression chamber purge supply and exhaust isolation valve with resilient seal material shall be demonstrated OPERABLE by verifying that the measured leakage is:
a.
Less than or equal to.05 La per valve test or, b.
Greater than.4.6. 1.8.2.a.
provided that:
- 1) the valves are secured closed and maintenance performed at the next plant cold shutdown to reduce the leakage to within 4.6. 1.8.2.a;
- 2) the leakage added to the previously determined total for all valves and penetrations subject to Type B and C
tests per LCO 3/4.6. 1.2 shall be less than
.6 La, c.
In the event the valves are to be operated, and 4.6.1.8.2.a.
has been
- exceeded, a leakage test must be performed within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> following operation, to ensure compliance with.6 La.
0
STATE OF WASHINGTON
)
)
COUNTY OF BENTON
)
Subject:
OPERATING LICENSE NPF-21, RE(VEST FOR TECHNICAL SPECIFICATION AMEND.
UNDER EMERGENCY CIRCUMSTANCES I, G. C.
SORENSEN, being duly sworn, subscribe to and say that I am the
- Manager, Regulatory Programs, for the WASHINGTON PUBLIC POWER SUPPLY SYSTEM, the applicant herein; that I have full authority to execute this oath; that I have reviewed the foregoing; and that to the best of my knowledge, information and belief the statements made in it are true.
MTE ++ S n '4~,
1985 G. C.
- SORENSEN, Manager Regulatory Programs On this day personally appeared before me G.
C.
SORENSEN to me known to be the individual who executed the foregoing instrument and acknowledged that he signed the same as his free act and deed for the uses and purposes therein mentioned.
GIVEN under my hand and seal this a2 day of
, 1985.
Notary Public i nd for the State of Washington Residing at
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