ML20214K975
| ML20214K975 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 05/20/1987 |
| From: | FLORIDA POWER CORP. |
| To: | |
| Shared Package | |
| ML20214K967 | List: |
| References | |
| NUDOCS 8705290128 | |
| Download: ML20214K975 (4) | |
Text
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IEDEI LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REOUIREMENTS SECTION EAGE 3/4.6 CONTAINMENT SYSTEMS 3/4.6.1 PRIMARY CONTAINMENT Containment Integrity..................................
3/4 6-1 Containment Leakage....................................
3/4 6-2 Containment Air Locks..................................
3/4 6-5 Internal Pressure......................................
3/4 6-6 Air Temperature........................................
3/4 6-7 I
Containment Structural Integrity.....................
3/4 6-8 3/4.6.2 DEPRESSURIZATION AND COOLING SYSTEMS Containment Spray System...............................
3/4 6-10 Spray Additive Systen..................................
3/4 6-12 Containment Cooling System.............................
3/4 6-14 1
3/4.6.3 CONTAINMENT ISOLATION VALVES...........................
3/4 6-15 3/4.6.4 COMBUSTIBLE GAS CONTROL Hydrogen Analyzers.....................................
3/4 6-22 Hydrogen Purge Systen..................................
3/4 6-23 3/4.7 PLANT SYSTEMS 3/4.7.1 TURBINE CYCLE Safety Valves..........................................
3/4 7-1 Energency Feedwater System.............................
3/4 7-4 Energency Feedwater Tank...............................
3/4 7-6 l
Ac tivi ty...............................................
3 / 4 7 -7 Main Steam Line Isolation Valves.......................
3/4 7-9 Secondary Water Chemistry..............................
3/4 7-10 i
8705290128 870520 ADOCK0500g2 PDR P
CRYSTAL RIVER - UNIT 3 VI
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PLANT SYSTEMS EMERGENCY FEEDWATER TANK l
LIMITING CONDITION FOR OPERATION 3.7.1.3 The emergency feedwater tank shall be OPERABLE with a minimum l
contained volume of 150,000 gallons of water.
APPLICABILITY: MODES 1, 2 and 3.
ACTION:
With the emergency feedwater tank inoperable, within 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, either:
l a.
Restore the emergency feedwater tank to OPERABLE status or be in l HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, or b.
Demonstrate the OPERABILITY of the condenser hotwell as a backup supply to the emergency feedwater system and restore the emergency feedwater tank to OPERABLE status within 7 days or be in HOT SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.
SURVEILLANCE REOUIREMENTS 4.7.1.3.1 The emergency feedwater tank shall be demonstrated OPERABLE at l least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by verifying the contained water volume to be within its limits when the tank is the supply source for the emergency feedwater pumps.
4.7.1.3.2 The condenser hotwell shall be demonstrated OPER.iBLE at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by verifying a minimum contained volume of 150,000 gallons of water whenever the condenser hotwell is the supply source for the emergency feedwater system.
CRYSTAL RIVER - UNIT 3 3/4 7-6
1 ATTACMENT B UPGRADED BASES FOR THE MERGENCT FEEDWATER TANK j
1 I
i
i 9*
i PLANT SYSTEMS BASES 3/4.7.1.2 EMERGENCY FEEDWATER SYSTEMS The OPERABILITY of the emergency feedwater systems ensures that the Reactor Coolant system can be cooled down to less than 280*F from normal operating conditions in the event of a total loss of offsite power.
Each emergency feedwater pump is capable of delivering a total feedwater flow of 740 gpa at a pressure of 1144 psig to the entrance of the steam generators.
This capacity is sufficient to ensure that adequate feedwater flow is available to remove decay heat and reduce the Reactor Coolant System temperature to less than 280'F where the Decay Heat Removal System may be placed into operation.
3/4.7.1.3 EMERGENCY FEEDWATER TANK The OPERABILITY of the emergency feedwater tank with the minimum water volume ensures that sufficient water is available for heat removal from the Reactor-l Coolant System in the event of a total loss of offsite power or of the main feedwater system. The Reactor Coolant System can be maintained in NOT STANDBY conditions by natural circulation using the emergency feedwater system.
The heat removal path for natural circulation involves primary coolant flow from the Reactor Coolant System to the steam generators.
Heat is transferred to 3
the emergency feedwater which flashes to steam and is subsequently discharged through the atmospheric dump valves.
The minimum water volume in the emergency feedwater tank is sufficient to maintain HOT STANDBY conditions for approximately 18 hours2.083333e-4 days <br />0.005 hours <br />2.97619e-5 weeks <br />6.849e-6 months <br />.
This period of time is considered adequate to allow plant conditions to be stabilized and another source of water (the condenser hotwell or the condensate storage tank) be made available to complete natural circulation cooldown to decay heat removal conditions.
The contained water volune limit is the useable water volume of the emergency feedwater tank.
3/4.7.1.4 ACTIVITY The limitations on secondary system specific activity ensure that the resultant offsite radiation dose will be limited to a smal1~ fraction of 10 CFR Part 100. limits in the event of a steam line rupture. This dose includes the effects of a coincident 1.0 GPM primary to secondary tube leak in the steam generator of the affected steam line.
These values are consistent with the
. assumptions used in the safety analyses.
i 3/4.7.1.5 MAIN STEAM LINE ISOLATION VALVES The OPERABILITY of the main steam line isolation valves ensures that no more i
than one. steam generator will blowdown in the event of a steam line rupture.
i This restriction is required to 1) minimize the i
i CRYSTAL RIVER - UNIT 3 B 3/4 7-2
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