ML20199L752

Corrected Tech Spec Pages to Amend 92 to License DPR-3 Re Main Coolant Sys,Eccs Subsystems & Vessel Fluence for Weld Metal

ML20199L752
Person / Time
Site:	Yankee Rowe
Issue date:	06/13/1986
From:	NRC
To:
Shared Package
ML20199L750	List: ML20199L746 ML20199L752
References
NUDOCS 8607090600
Download: ML20199L752 (5)

Text

' MAIN COOLANT SYSTEM SAFETY VALVES - SHUTDOW LIMITING CCNDITICU FOR OPERATICN 3.4.2 At least the following safety and/or relief valves shall be OPERAELE;

s. A minimum of one pressurizer code safety valve shall be OPERABLE with a lif t setting of 2485 psis +3%, -3% or 2560 psig

+3%, -3%.

b. The Main Coolant System (MCS) pressuriser Power-Operated Relief Valve (PCRV) PR-50V-90 shall be OPERABLE in the low pressure made whenever MCS tas:peratuce is 13248F.

c. Shutdown Cooling System (SCS) Safety Valves SV-204 and SV-205 shall be OPERA 3LE whenever MCS temperature is 1 3000F.

APPLICABILITY: MODES 4 and 5. ,

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ACTION:

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a. With no pressurizer code safety valve OPERABLE, insnedistely suspend ~

all operations involving positive reactivity changes and place the Shutdown Cooling System into operation.

%. b. With PR-50V-90 inoperable and MCS temperature between 3000F and 3248F:

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1. Within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, either;

a. Raise the MCS temperature to > 3240 F, or

,b. Lower the MCS temperature to i 3000F and place the SCS safety valves into operation by:

1. opening SC-MOV-551, 552, 553, and 554; and

2. Verifying that the safety valves are lined up to discharse to either the Low Pressure Surge Tank (LPST) er the Primary Drain Collecting Tank (PDCT);

and

2. Restore PR-30V-90 to CPERABLE status within 7 days; or

3. Within the next S hours, depressurize and vent the MCS to the atmosphere, the LPST, or the PDCT.

3/4 4-5 Amendment so. If, 40, 85

. YArxxt-towE B607090600 860613 9 PDR ADOCK 0500 P

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EMERGENCY CORE COOLING SYSTEMS ECCS SUBSYSTEMS LIMITING CONDITION FOR OPERATION 3.5.2 The ECCS subsystems shall be OPERABLE with:

a. Three OPERABLE independent ECCS safety injection subsystems with each subsystem comprised of:

1. One OPERABLE high pressure safety injection pump,

2. One OPERABLE low pressure safety injection pump, .

3. An OPERABLE flow path capable of taking suction from the safety injection tank on a safety injection signal.

b. An OPERABLE ECCS recirculation subsystem with an OPERABLE flow l path capable of taking suction from the containment sump and recirculating to the safety injection header.

c. An OPERABLE ECCS long term het leg injection subsystem with an OPERABLE flow path capable of taking suction from the ECCS safety injection subsystem and discharging to the Main Coolant System #4 hot leg.

APPLICAEILITY: MODES 1, 2, 3, 4* and 5* l ACTION!

a. With one ECCS safety injection 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 SHUTDOWN with Main Coolant pressure < 1000 psig within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

b. In the event the ECCS is actuated and injects water into the Main Coolant System, a Special Report shall be prepared and submitted to the Commission pursuant to Specification 6.9.5 within 90 days describing the circumstances of the actuation and the total accumulated actuation cycles to date. The pro-visions of Specification 3.0.3 are not applicable.

' Main coolant pressure > 1000 psig.

I

, YANKEE-ROWE 3/45-3 Amendment No.52

' ,.s EMERGENCY CORE COOLING SYSTEMS SURVEILLANCE REOUIREMENTS 4.5.3.1* The ECCS subsystems shall be demonstrated OPERABLE per the ap- l plicable Surveillance Requirements of 4.5.2.

4.5.3.2 The above specified HPSI and LPSI pumps shall be verified to be inoperable at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> whenever MCS temperature is

< 324'F by detemining that the associated pcwer supply breakers are open and locked in the racked-out position or are removed from the cubicle. ,'

4.5.3.3 The following valves shall be verified to be in the indicated positions at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> whenever MCS temperature is

< 324*F, the reactor vessel head is bolted on and both pressurizer -

code safety valves are installed as'specified above.

Valve Number Valve Position

' CS-MOV-536 Closed CS-MOV-537 Closed J CS-MOV-538 Closed CS-MOV-539 Closed SI-MOV-22 Closed SI-MOV-23 Closed

~~

SI-MOV-24 Closed

~

SI-MOV-25 Closed CS-MOV-532 Open

" Main coolant pressure < 1000 psig but y_ 300 psig.

YANKEE-ROWE 3/4 5-11 Amendment No. 59 ,

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ll1 I i i l l l i 10 20 10 18 10 18 10 10 17 FLUENCE > 1 MEV (n/cm 2g SHIFT IN RT NDT AS A FUNCTION OF VESSEL FLUENCE FOR WELD METAL,1/4t AND 3/4t ,

i BASES FIGURE B3/4 4-2

i 3/4.5 EMERGENCY CORE COOLING SYSTEMS BASES 3/4.5.1 ACCUMULATOR The OPERABIL*ITY of the accumulator ensures that a sufficient volume of barated water will be immediately forced into the reactor core through each of the cold legs in the event the Main Coolant System pressure falls below the pressure of the accumulator. This initial surge of water into the core provides the initial cooling mechanism during large Main Coolant System pipe ruptures.

The limits on accumulator volume, boron concentration and pressure ensure that the assumptions used for accumulator injection in the acci ,

dent analysis are met. A minimum useable water volume of 700 cubic feet require accumulator water volume to be at least 850 cubic feet. -

The limits for operation with the accumulator inoperable for any reason l except an isolation valve closed or pressurization system inoperable minimizes the time exposure of the plant to a LOCA event occurring concurrently. which may result in unacceptable peak cladding tempera-tures. If a closed isolation valve cannot be immediately opened, the

(_. full capability of the accumulator is not available and prompt action is L' required to place the reactor in a MDDE where this capability is not required.

3/4.5.2 and 3/4.5.3 ECCS SUBSYSTEMS

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The OPERABILITY of three independent ECCS safety injection subsystems, the recirculation subsystem, and the long term hot leg injection sub-system ensures that sufficient emergency core cooling capability will be available in the event of a LOCA assuming the loss of one safety in-jection subsystem. Two safety injection subsystems operating in con- l Junction with the accumulator are capable of supplying sufficient core cooling to limit the peak cladding temperatures within acceptable limits for all postulated break sizes ranging from the double ended break of the largest Main Coolant System cold leg pipe downward. In addition, the safety injection subsystems, the recirculation subsystem and the long term hot leg injection subsystem provide long term core cooling and baron mixing capability during the accident recovery period.

1 l

I YANKEE-ROWE B 3/4 5-1 Amendment No. #3, 52 W-

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