ML20149G178

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Proposed Page 3-19 to Tech Spec 3.3, Emergency Core Cooling,Reactor Bldg Emergency Cooling & Reactor Bldg Spray Sys
ML20149G178
Person / Time
Site: Rancho Seco
Issue date: 02/08/1988
From:
SACRAMENTO MUNICIPAL UTILITY DISTRICT
To:
Shared Package
ML20149G164 List:
References
TAC-65256, NUDOCS 8802180152
Download: ML20149G178 (1)


Text

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RANCHO SEC0 UNIT 1 TECHNICAL SPECIFICATIONS Limiting Conditions for Operation ,

3.3 EMERGENCY CORE COOLING, REACTOR BUILDING EMERGENCY COOLING AND REACTOR BUILDING SPRAY SYSTEMS Aeolicability 164- +- All modes from HEATUP-COOLDOHN to POWER OPERATION, inclusive. ,

4 Obiective.

To define the conditions necessary to assure immediate availability of the emergency core cooling, Reactor Building emergency cooling and Reactor Building spray systems.

Soecification 3.3.1 The reactor shall not remain critical, unless the following conditions are met:

1644 A.

OPERABLEyndentECCSsubsystems(injectionsystems)shallbe Twoindep)witheachsubsystemcomprisedof:

1. One OPERABLE (I) high pressure injection pump.
2. One OPERABLE decay heat removal pump.
3. One OPERABLE decay heat removal cooler.
4. An OPERABLE (I) flow path capable of taking suction t' rom >

the borated water storage tank on safety injection signal. The Reactor Building emergency sump isolation valve shall be either manually or remote-manually operable.

5. One of the two BHST isolation valves shall be open (SFV 25003 or SFV 25004). This valve may be closed during the quarterly valve test specified in the Specifications 4.5.1.2A and 5.4.2.2A.

Action

a. Hith one ECCS subsystem inoperable, restore the inoperable subsystem to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT SHUTDOHN 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 SHUTDOHN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Note (l) When the requirements of Specification 3.2.2.2 LTOP are in et fect the HPI flow path will not be OPERABLE.

Proposed Amendment No. 164 2 3-19

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