ML19325F343

Proposed Tech Specs Re Uninterruptible Power Supply

ML19325F343
Person / Time
Site:	Vermont Yankee
Issue date:	11/09/1989
From:	VERMONT YANKEE NUCLEAR POWER CORP.
To:
Shared Package
ML19325F340	List: ML19325F339 ML19325F343
References
NUDOCS 8911200173
Download: ML19325F343 (4)

Text

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Attachment 1

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.Page 1 of 2 305 LIMITING CONDITION FOR OPERATION 4.5 SURVEILLANCE REQUIREMENT ,

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!- active components of the LPCI Containment Cooling -

Subsystem and all active components of both Core Spray Subsystems and the diesel generators required for operation of such components if no "., ,

external source of power were available, shall be 1 operable. -

4. F ay'a rt da C Su sys ai 4. When a LPCI Subsystem is made or found to be ma

- - - 8 1* an re on, inoperable, the active components of the redundant rea. ng e I.PCI Subsystem shall have been or shall be uc. mad demonstrated to be operable within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />

" Insert attached paragraphs da s 11 (except the Recirculation System discharge valves).

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5. All recirculation pump discharge valves and bypass 5. a. All recirculation pump discharge and bypass j valves shall be operable or closed prior to valves shall be tested for operability during reactor startup. any period of reactor cold shutdown exceeding 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br />, if operability tests have not been

6. If the requirements of Specification 3.5.A cannot performed during the preceding 31 days.

Le met, an orderly shutdown of the reactor shall be initiated and the reactor shall be in a cold b. Recirculation Pump discharge valves shall be shutdown condition with 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. tested to verify full open to full closed in 27 it 133 seconds each refueling outage.

I B. Containment Sprav Coo 11nn Canability B. Containment Sprav Cooline cmambility

1. Both containment cooling spray loops are 1. Surveillance of the drywell spray loops shall required to be operable when the reactor be performed as follows. During each l water temperature is greater than five-year period, an air test shall be 2120F except that a Containset performed mi the drywell spray headers and I nozzles.

Amendment No. 27, y , 114 87 8911200173 891109 PDR ADOCK 05000271 PDC p

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. '3.5.A.4.

.. a.- From and after the date that a LPCI. Subsystem is made or-L found to be inoperable due tu failurelof the associated UPS, if t

reactor operation is permissible only during the succeeding thirty days, for the 1989/90 operating cycle, unless it'is-(f_

, sooner.made operable, provided that during that time the-

. associated motor control center (89A or 89B)- is powered from its respective. maintenance tie, all active components of'the other'LPCI andLthe: Containment Cooling Subsystem, the Core Spray Subsystems, and the' emergency diesel generators shall be operable, the' requirements of Specification 3.10.A.4 are met, and the 4160 volt: tie line to the.Vernon Hydro is the l operable delayed access power source..

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b. From and after the date that a LPCI: Subsystem is made or found to'be inoperable for any reason, other than failure of the UPS during 1989/90 operating cycle, or Specification 3.5.A.4.a is notimet, reactor operation is permissible.only during the succeeding seven days unless it is' sooner made-operable, provided that during that time all" active components of.the other LPCI and the. Containment Cooling

, Subsystem, the Core Spray Subsystems, and the diesel generators required for operation of such components if no external source of power were available, shall be operable. y i*

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480V l)MCC 58 480V l)MCC 88 UPS UPS -

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LPCI VALVE LOADS I, I LPCI VALVE LOADS I i u________.a

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4 RHR V27A/V25A B RECIRC 43A/53A/54A POWERED BY UPS-1 A t __ _ _ _ _ _ .---

RHR V27B/V25B B RECIRC 43B/53B/54B POWERED BY UPS-1B