Text

License Amendment Request 14-03 for Adoption of Technical Specification Task Force Traveler TSTF-432, Revision 1. Change in Technical Specification End States (WCAP-16294). Part 1
	ML14209B075
Person / Time
Site:	Diablo Canyon
Issue date:	07/28/2014
From:	; Pacific Gas & Electric Co
To:	; Document Control Desk, Office of Nuclear Reactor Regulation
References
	DCL-14-058, LAR 14-03, TSTF-432, Rev. 1, WCAP-16294
	Download: ML14209B075 (41)
	v • d • e

3.8 ELECTRICAL POWER SYSTEMS 3.8.7 Inverters-Operating Inverters

-Operating 3.8.7 LCO 3.8.7 Four Class 1E Vital120 V UPS inverters shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION REQUIRED ACTION A. One required inverter A.1 -----------NOTE---------------

inoperable.

Enter applicable Conditions and Required Actions of LCO 3.8.9, "Distribution Systems -Operating" with any vital 120 V AC bus de-energized.

Restore inverter to OPERABLE status. B. Required Action and B.1 Be in MODE 3. associated Completion Time not met. AND ..------B.2 Be in MODE §1:. SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.7.1 Verify correct inverter voltage and alignment to required AC vital buses. COMPLETION TIME 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 6 hours Insert 1 ----

FREQUENCY In accordance with the Surveillance Frequency Control Program DIABLO CANYON -UNITS 1 & 2 3.8-26 Unit 1 -Amendment No. 200, Unit 2 -Amendment No.

3.8 ELECTRICAL

POWER SYSTEMS 3.8.9 Distribution Systems-Operating Distribution Systems -Operating 3.8.9 LCO 3.8.9

The required Class 1 E AC, DC, and 120 VAC vital bus electrical power I distribution subsystems shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION A. One AC electrical power A. 1 distribution subsystem inoperable.

B. One 120 VAC vital bus B.1 subsystem inoperable.

C. One DC electrical power C.1 distribution subsystem inoperable.

D. Required Action and D.1 associated Completion AND Time not met. D.2 E. Two required Class 1 E AC, E.1 DC, or 120 VAC vital buses with inoperable distribution subsystems that result in a loss of safety function.

DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION COMPLETION TIME Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months power distribution subsystem to OPERABLE status. Restore 120 VAC vital 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months bus subsystem to OPERABLE status. Restore DC electrical

2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months power distribution subsystem to OPERABLE status. Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months Insert 1 .------Be in Enter LCO 3.0.3. Immediately 3.8-29 Unit 1 -Amendment No. Unit 2 -Amendment No. 24+,

Insert 1 LC() 3.0.4.a is not applicable when entering M()DE: 4. Technical Specifications Inserts Enclosure Attachment 1 PG&E Letter DCL-14-058 Enclosure Attachment 2 PG&E Letter DCL-14-058 Revised Technical Specification Page(s) Remove Page Insert Page 3.3-19 3.3-19 3.3-19a 3.3-47 3.3-47 3.4-27 3.4-27 3.4-30 3.4-30 3.4-34 3.4-34 3.5-6 3.5-6 3.5-7 3.5-7 3.5-7a 3.6-13 3.6-13 3.6-14 3.6-14 3.6-16 3.6-16 3.6-16a 3.7-14 3.7-14 3.7-16 3.7-16 3.7-16a 3.7-17 3.7-17 3.7-18a 3.7-18a 3.7-21 3.7-21 3.7-22 3.7-22 3.8-3 3.8-3 3.8-3a 3.8-18a 3.8-18a 3.8-19 3.8-19 3.8-26 3.8-26 3.8-29 3.8-29

3.3 INSTRUMENTATION

ESFAS Instrumentation 3.3.2 3.3.2 Engineered Safety Feature Actuation System (ESFAS) Instrumentation LCO 3.3.2 The ESFAS instrumentation for each Function in Table 3.3.2-1 shall be OPERABLE.

APPLICABILITY:

According to Table 3.3.2-1. ACTIONS ------------------------------------------------------NOTE-------------------------------------------------------------

Separate Condition entry is allowed for each Function.

CONDITION ) A. One or more Functions with A. 1 one or more required channels or trains inoperable.

B. One channel or train B.1 inoperable.

OR B.2.1 B.2.2 '-*--DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION COMPLETION TIME Enter the Condition Immediately referenced in Table 3.3.2-1 for the channel(s) or train(s).

Restore channel or train 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months to OPERABLE status. Be in MODE 3. 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months AND -----------NOTE------------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. 60 hours6.944444e-4 days 0.0167 hours 9.920635e-5 weeks 2.283e-5 months (continued) 3.3-19 Unit 1 -Amendment No. 4-79, Unit 2 -Amendment No. 84, ACTIONS (continued)

CONDITION C. One train inoperable.

DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION One train may be bypassed for up to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months for surveillance testing provided the other train is OPERABLE.

C.1 OR Restore train to OPERABLE status. C.2.1 Be in MODE 3. AND . C.2.2 ---------NOTE--------------

LCO 3.0.4.a is not applicable when entering MODE 4. Be in MODE 4. ESFAS Instrumentation

3.3.2 COMPLETION

TIME 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 30 hours 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months (continued) 3.3-19a Unit 1 -Amendment No. 4-79, Unit 2 -Amendment No. 8-t,

3.3 INSTRUMENTATION

CRVS Actuation Instrumentation 3.3.7 3.3.7 Control Room Ventilation System (CRVS) Actuation Instrumentation LCO 3.3.7 The CRVS actuation instrumentation for each Function in Table 3.3.7-1 shall be OPERABLE.

APPLICABILITY:

According to Table 3.3.7-1. ACTIONS -----------------------------------------------------------NOTES-------------------------------------------------------

1. Separate Condition entry is for each Function.

2. Functions are common to both units. CONDITION REQUIRED ACTION COMPLETION TIME A. One or more Functions with A.1 Place one CRVS train in 7 days one channel or train inoperable.

B. One or more Functions with B.1.1 two channels or two trains inoperable.

B.1.2 C. Required Action and C.1 associated Completion AND Time for Condition A or B not met in MODE 1, 2, 3, or 4. C.2 DIABLO CANYON -UNITS 1 & 2 pressurization mode. Place one CRVS train in Immediately pressurization mode. AND I Enter applicable Immediately Conditions and Required Actions for one CRVS train made inoperable by inoperable CRVS actuation instrumentation.

Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ----------NOTE-------------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months (continued) 3.3-47 Unit 1 -Amendment No. Unit 2 -Amendment No.

RCS Operational LEAKAGE 3.4.13 3.4 REACTOR COOLANT SYSTEM (RCS) 3.4.13 RCS Operational LEAKAGE LCO 3.4.13 RCS operational LEAKAGE shall be limited to: a. No pressure boundary LEAKAGE; b. 1 gpm unidentified LEAKAGE; c. 10 gpm identified LEAKAGE; and d. 150 gallons per day primary to secondary LEAKAGE through any one steam generator (SG). APPLICABILITY:

MODES 1, 2, 3*, and 4*. ACTIONS A. B.

CONDITION REQUIRED ACTION COMPLETION TIME RCS operational LEAKAGE A.1 Reduce LEAKAGE to 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months not within limits for reasons within limits. other than pressure boundary LEAKAGE or primary to secondary LEAKAGE. Required Action and B.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion AND Time of Condition A not met. OR Pressure boundary 8.2 ----------NOTE-------------

LEAKAGE exists. LCO 3.0.4.a is not OR applicable when entering MODE 4. Primary to secondary

LEAKAGE not within limit. Be in MODE 4: 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months For MODES 3 and 4, if steam generator water samples indicate less than the minimum detectable activity of 5.0 E-7 microcuries/ml for principal gamma emitters, the leakage requirement of specification 3.4.13.d.

may be considered met. 3.4-27 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. 442:, 4-94, Unit 2 -Amendment No. 442:, 4-9§,

ACTIONS CONDITION REQUIRED ACTION A. (continued)

A.2.1

Isolate the high pressure portion of the affected system from the low pressure portion by use of a second closed manual, deactivated automatic, or check valve. OR A.2.2 Restore RCS PIV to within limits. B. Required Action and 8.1 Be in MODE 3. associated Completion Time for Condition A not AND met. 8.2 ----------NOTE-------------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.4.14.1 -----------------------------NOTES-------------------------------

RCS PIV leakage 3.4.14 COMPLETION TIME 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 72 hours 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 12 hours FREQUENCY

1. Not required to be performed in MODES 3 and 4. 2. Not required to be performed on the RCS PIVs located in the RHR flow path when in the shutdown cooling mode of operation.

3. RCS PIVs actuated during the performance of this Surveillance are not required to be tested more than once if a repetitive testing loop cannot be avoided. 3.4-30 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. 442, Unit 2 -Amendment No. 442, ACTIONS (continued)

CONDITION D. Any containment sump monitor inoperable.

AND Containment atmosphere particulate radioactivity monitor inoperable.

AND Required CFCU condensate collection monitor inoperable.

E. All required monitors inoperable.

F. Required Action and associated Completion Time not met. DIABLO CANYON -UNITS 1 & 2 RCS Leakage Detection Instrumentation 3.4.15 REQUIRED ACTION COMPLETION TIME D.1 Analyze grab samples of the Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months AND D.2.1 D.2.2 D.2.3 E.1 F.1 AND F.2 containment atmosphere.

Restore containment 7 days sump monitor to OPERABLE status. OR Restore containment 7 days atmosphere particulate radioactivity monitor to OPERABLE status. OR Restore required CFCU 7 days condensate collection monitor to OPERABLE status. Enter LCO 3.0.3. Immediately Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ----------NOTE-------------

LCO 3.0.4.a is not applicable when entering MODE4. --------------------------------

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.4-34 Unit 1 -Amendment No.

Unit 2-Amendment No.

3.5 EMERGENCY

CORE COOLING SYSTEMS (ECCS) 3.5.3 ECCS -*Shutdown LCO 3.5.3 One ECCS train shall be OPERABLE.

ECCS :.. Shutdown 3.5.3 -------------------------------------------------------------NOTE-----------------------------------------------------

An RHR train may be considered OPERABLE during alignment and operation for decay heat removal, if capable of being manually realigned to the ECCS mode of operation.

APPLICABILITY:

MODE 4. ACTIONS --------------------------------------------------------NOTE-------------------------------------------------------------

LCO 3.0.4b is not applicable to ECCS Centrifugal Charging Pump subsystem.

CONDITION A. Required ECCS train inoperable.

A. 1 REQUIRED ACTION ----------NOTE-------------

LCO 3.0.4.a is not applicable when entering MODE4. COMPLETION TIME Initiate action to restore Immediately required ECCS train to OPERABLE status. SURVEILLANCE REQUIREMENTS SR 3.5.3.1 SURVEILLANCE The following SRs are applicable for all equipment required to be OPERABLE:

SR 3.5.2.1 SR 3.5.2. 7 SR 3.5.2.3 SR 3.5.2.4 SR 3.5.2.8 FREQUENCY In accordance with applicable SRs 3.5-6 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No.

Unit 2 -Amendment No.

3.5 EMERGENCY

CORE COOLING SYSTEMS (ECCS) 3.5.4 Refueling Water Storage Tank (RWST) LCO 3.5.4 The RWST shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4 ACTIONS 'CONDITION REQUIRED ACTION A. RWST boron concentration A. 1 Restore RWST to not within limits. OPERABLE status. OR RWST borated water temperature not within limits. B. RWST inoperable for B.1 Restore RWST to reasons other than OPERABLE status. Condition A. C. Required Action and C.1 Be in MODE 3. associated Completion AND Time not met. C.2 ----------NOTE-------------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. RWST 3.5.4 COMPLETION TIME 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 1 hour 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 12 hours 3.5-7 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. 4Ja, 4-99, 2-00, Unit 2 -Amendment No. 4Ja, 2-00, SURVEILLANCE REQUIREMENTS SR 3.5.4.1 SR 3.5.4.2 SR 3.5.4.3 SURVEILLANCE

()nly required to be performed when ambient air temperature is < 35°F. Verify RWST borated water temperature is 35°F. Verify RWST borated water volume is 455,300 gallons. Verify RWST boron concentration is 2300 ppm and .::5. 2500 ppm. RWST 3.5.4 FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program DIABL() CANY()N -UNITS 1 & 2 3.5-7a Unit 1 -Amendment 43§, 4-99, 2-GG, Unit 2 -Amendment 43§, 2-GG,

3.6 CONTAINMENT

SYSTEMS Containment Spray and Cooling Systems 3.6.6 3.6.6 Containment Spray and Cooling Systems LCO 3.6.6 The containment fan cooling unit (CFCU) system and two containment spray trains shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION A. One containment spray A. 1 train inoperable.

OR A.2 B. Required Action and B.1 associated Completion AND Time of Condition A not met. B.2 C. One required CFCU system C.1 inoperable such that a minimum of two CFCUs remain OPERABLE.

DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION COMPLETION TIME Restore containment 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months spray train to OPERABLE status. ---------NOTE------------

For planned maintenance or inspections, the Completion Time is 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months . The Completion Times of Required Action A.2 are for unplanned corrective maintenance or inspections.

Restore containment 14 days spray train to OPERABLE status Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ----------NOTE-------------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months Restore required CFCU 7 days system to OPERABLE status. (continued) 3.6-13 Unit 1 -Amendment No.

Unit 2 -Amendment No.

ACTIONS (continued)

CONDITION D. One required containment D.1 spray train inoperable and one required CFCU system inoperable such that a minimum of two CFCUs OR remain OPERABLE.

D.2 C> E. Required Action and E.1 associated Completion Time of Condition C or D AND not met. E.2 F. Two containment spray F.1 trains inoperable.

OR One containment spray train inoperable and two CFCU systems inoperable such that one or less CFCUs remain OPERABLE.

OR One or less CFCUs OPERABLE.

DIABLO CANYON -UNITS 1 & 2 Containment Spray and Cooling Systems 3.6.6 . REQUIRED ACTION COMPLETION TIME Restore one required 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months containment system to OPERABLE status, Restore one CFCU 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months system to OPERABLE status such that four CFCUs or three CFCUs, each supplied by a different vital bus, are OPERABLE. Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months ------------NOTE--------------

LCO 3.0.4.a is not applicable when entering MODE4. ----------------------------------

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Enter LCO 3.0.3. Immediately 3.6-14 Unit 1 -Amendment No. Unit 2 -Amendment No.

3.6 CONTAINMENT

SYSTEMS 3.6. 7 Spray Additive System Spray Additive System 3.6.7 LCO 3.6. 7 The Spray Additive System shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION A. Spray Additive System A.1 inoperable.

B. Required Action and 8.1 associated Completion AND Time not met. 8.2 DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION COMPLETION TIME Restore Spray Additive 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months System to OPERABLE status. Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months -------------

N 0 TE ------------LCO 3.0.4.a is not applicable when entering MODE4. --------------------------------

Be in MODE 4. 54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months 3.6-16 Unit 1 -Amendment No. Unit 2 -Amendment No.

SURVEILLANCE REQUIREMENTS SR 3.6.7.1 SR 3.6.7.2 SR 3.6.7.3 SR 3.6.7.4 SR 3.6.7.5 SURVEILLANCE Verify each spray additive manual, power operated, and automatic valve in the flow path that is not locked, sealed, or otherwise secured in position is in the correct position.

Verify spray additive tank solution volume is 46.2% and 91.9%. Verify spray additive tank NaOH solution concentration 30%> and 32°/o by weight. Verify each spray additive automatic valve in the flow path that is not locked, sealed, or otherwise secured in position, actuates to the correct position on an actual or simulated actuation signal. Verify spray additive flow from each solution's flow path. Spray Additive System 3.6.7 FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program 3.6-16a DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. 200, Unit 2 -Amendment No. 2G4,

3.7 PLANT

SYSTEMS 3. 7. 7 Vital Component Cooling Water (CCW) System LCO 3. 7. 7 Two vital CCW loops shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION REQUIRED ACTION A. One vital CCW loop A. 1 ------------NOTE--------------

inoperable.

Enter applicable Conditions and Required Actions of LCO 3.4.6, "RCS Loops-MODE 4," for residual heat removal loops made inoperable by CCW. -----------------------------------

Restore vital CCW loop to OPERABLE status. B. Required Action and B.1 Be in MODE 3. associated Completion AND Time of Condition A not met. B.2 -------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. SURVEILLANCE REQUIREMENTS SR 3.7.7.1 SURVEILLANCE

NOTE----------------------------

Isolation of CCW flow to individual components does not render the CCW System inoperable Verify each CCW manual, power operated, and automatic valve in the flow path servicing safety related equipment, that is not locked, sealed, or otherwise secured in position, is in the correct position.

CCW System 3.7.7 COMPLETION TIME 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 6 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months FREQUENCY In accordance with the Surveillance Frequency Control Program 3.7-14 DIABLO CANYON -UNITS 1 & 2 (continued)

Unit 1 -Amendment No. 4-a-e, Unit 2 -Amendment No. 4-a-e,

3.7 PLANT

SYSTEMS 3.7.8 Auxiliary Saltwater (ASW) System ASW 3.7.8 LCO 3.7.8 Two ASW trains shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION A. One ASW train inoperable.

A.1 B. Required Action and B.1 associated Completion AND Time of Condition A not met. B.2 DiABLO CANYON -UNITS 1 & 2 REQUIRED ACTION COMPLETION TIME ------------NOTE--------------

Enter applicable Conditions and Required Actions of LCO 3.4.6, "RCS Loops-MODE 4," for residual heat removal loops made inoperable by ASW. -----------------------------------

Restore ASW train to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months -------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 3.7-16 Unit 1 -Amendment No. 4Ja, 200, Unit 2 -Amendment No. 4Ja, 2G-1-,

ASW 3.7.8 SURVEILLANCE REQUIREMENTS SR 3.7.8.1 SR 3.7.8.2 SR 3.7.8.3 SURVEILLANCE FREQUENCY Verify each ASW manual and power operated, In accordance with the valve in the flow path servicing safety related Surveillance equipment, that is not locked, sealed, or otherwise Frequency Control secured in position, is in the correct position.

Program Verify each ASW power operated valve in the flow path that is not locked, sealed, or otherwise secured in position, can be moved to the correct position. Verify each ASW pump starts automatically on an actual or simulated actuation signal. 3.7-16a In accordance with the lnservice Test Program. In accordance with the Surveillance Frequency Control Program DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. Unit 2-Amendment

3.7 PLANT

SYSTEMS 3.7.9 Ultimate Heat Sink (UHS) LCO 3.7.9 The UHS shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION REQUIRED ACTION A. With the UHS temperature A.1 Place a second CCW > 64°F. heat exchanger in service. B. Required Action and B.1 Be in MODE 3. associated Completion Time of Condition A not AND met. B.2 -------------

N 0 T E -----------

LCO 3.0.4.a is not applicable when entering MODE4. --------------------------------

Be in MODE 4. SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.7.9.1 Not used. SR 3.7.9.2 Verify water temperature of UHS is within limits. UHS 3.7.9 COMPLETION TIME 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months 6 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months FREQUENCY 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months if UHS temperature is :s; 60°F, AND 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months if UHS temperature

> 60°F buts 62°F, AND 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months if UHS temperature

> 62°F buts 64°F. 3.7-17 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. 4-3§, Unit 2 -Amendment No. 4-3§,

ACTIONS (continued)

CONDITION C. Required Action and associated Completion Time of Condition A orB not met in MODE 1, 2, 3, or 4. D. Required Action and associated Completion Time of Condition A not met in MODE 5 or 6, or during movement of recently irradiated fuel assemblies.

I DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION C.1 Be in MODE 3. AND C.2 LCO 3.0.4.a is not applicable when entering MODE4. --------------------------------

Be in MODE 4. D.1.1 Place OPERABLE CRVS train in pressurization mode. AND D.1.2 Verify that the OPERABLE CRVS train is capable of being powered by an OPERABLE emergency power source. OR D.2 Suspend movement of recently irradiated fuel assemblies.

CRVS 3.7.10 COMPLETION TIME I 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 12 hours Immediately Immediately Immediately (continued) 3.7-18a Unit 1 -Amendment No. Unit 2 -Amendment No.

3.7 PLANT

SYSTEMS 3. 7.12 Auxiliary Building Ventilation System (ABVS) LCO 3. 7.12 Two ABVS trains shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION REQUIRED ACTION A. The common HEPA filter A. 1 Restore the common and/or charcoal adsorber HEPA filter and charcoal inoperable.

adsorber to OPERABLE status. B. One ABVS train inoperable.

B.1 Restore ABVS train to OPERABLE status C. Required Action and C.1 Be in MODE 3. associated Completion AND Time not met. C.2 -------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. ABVS 3.7.12 COMPLETION TIME 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 7 days 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 12 hours 3.7-21 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No.

Unit 2 -Amendment No.

SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.7.12.1 ------------------------------------------------------------------

This surveillance shall verify that each ABVS train is aligned to receive electrical power from a separate OPERABLE vital bus. ------------------------------------------------------------------

Operate each ABVS train 15 minutes. SR 3.7.12.2 Perform required ABVS filter testing in accordance with the Ventilation Filter Testing Program (VFTP). --------------------------NOTE--------------------------------

SR is not applicable to a specific ABVS train when that ABVS train is configured and performing its safety function.

SR 3.7.12.3 Verify each ABVS train actuates on an actual or simulated actuation signal and the system realigns to exhaust through the common HEPA filter and charcoal adsorber.

SR 3.7.12.4 Not Used. SR 3.7.12.5 Not Used. SR 3.7.12.6 Verifying that leakage through the ABVS Dampers M2A and M2B is less than or equal to 5 cfm when subjected to a Constant Pressure or Pressure Decay Leak Rate Test in accordance with ASME N510-1989.

The test pressure for the leak rate test shall be based on a maximum operating pressure as defined in ASME N51 0-1989, of 8 inches water gauge. ABVS 3.7.12 FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the VFTP In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program 3.7-22 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No.

Unit 2 -Amendment No.

ACTIONS (continued)

CONDITION C. Two required offsite circuits C.1 inoperable.

AND C.2 D. One required offsite circuit D.1 inoperable.

AND OR One DG inoperable.

D.2 E. Two or more DGs E.1 inoperable.

F. One supply train of the F.1 DFO transfer system inoperable.

G. Two supply trains of the G.1 DFO transfer system inoperable.

H. Required Action and H.1 associated Completion AND Time of Condition A, B, C, H.2 D, E, F or G not met. DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION Declare required feature(s) inoperable when its redundant required feature(s) is inoperable.

Restore one required offsite circuit to OPERABLE status. Restore required offsite circuit to OPERABLE status. Restore DG to OPERABLE status. Ensure at least two DGs are OPERABLE.

Restore the DFO transfer system to OPERABLE status. Restore one train of the DFO transfer system to OPERABLE status. Be in MODE 3. -------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE4. --------------------------------

Be in MODE 4. AC Sources -Operating

3.8.1 COMPLETION

TIME 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from discovery of Condition C concurrent with inoperability of redundant required features.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 12 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months 2 hours* 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months 1 hour 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months 12 hours (continued) 3.8-3 Unit 1 -Amendment No. Unit 2 -Amendment No.

ACTIONS (continued)

CONDITION I. Two or more DGs inoperable.

AND One or more required offsite circuits inoperable.

J. One or more DGs inoperable.

AND Two required offsite circuits inoperable.

DIABLO CANYON -UNITS 1 & 2 1.1 J.1 REQUIRED ACTION Enter LCO 3.0.3. Enter LCO 3.0.3. AC Sources -Operating

3.8.1 COMPLETION

TIME Immediately Immediately 3.8-3a Unit 1 -Amendment No. Unit 2 -Amendment No.

ACTIONS (continued)

CONDITION B. One battery inoperable.

C. One DC electrical power subsystem inoperable for reasons other than Condition A or B. D. More than one full capacity charger receiving power simultaneously from a single 480 V vital bus. DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION B.1 Restore battery to OPERABLE status. OR B.2.1.1 ------------NOTE------------

Required Actions B.2.1.1, B.2.1.2, and B.2.2 are applicable, on a one time basis, for Unit 1 cycle 14. --------------------------------

Determine OPERABLE batteries are not inoperable due to common cause failure. OR B.2.1.2 Perform SR 3.8.4.1 and SR 3.8.6.1 for OPERABLE batteries.

AND B.2.2 Restore battery to OPERABLE status. C.1 Restore DC electrical power subsystem to OPERABLE status. D.1 Restore the DC electrical power subsystem to a configuration wherein each charger is powered from its associated 480 volt vital bus. DC Sources -Operating

3.8.4 COMPLETION

TIME 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 2 hours J 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 4 hours 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months 14 days (continued) 3.8-18a Unit 1'-Amendment No.

Unit 2 -Amendment No.

DC Sources -Operating

3.8.4 ACTIONS

(continued)

CONDITION E. Required Action and Associated Completion Time not met. REQUIRED ACTION E.1 Be in MODE 3. AND E.2 -----------NOTE------------

LCO 3.0.4.a is not applicable when entering MODE4. COMPLETION TIME 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months SURVEILLANCE REQUIREMENTS SR 3.8.4.1 SR 3.8.4.2 SR 3.8.4.3 SURVEILLANCE Verify battery terminal voltage is greater than or equal to the minimum established float voltage. Verify each battery charger supplies 400 amps at greater than or equal to the minimum established float voltage 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . Verify each battery charger can recharge the battery to the fully charged state within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months while supplying the largest combined demands of the

various continuous steady state loads, after a battery discharge to the bounding design basis event discharge state. -------------------------------NOTES-----------------------------

1. The modified performance discharge test in SR 3.8.6.6 may be performed in lieu of SR 3.8.4.3. 2. This Surveillance shall not be performed in MODE 1, 2, 3, or 4. Verify battery capacity is adequate to supply, and maintain in OPERABLE status, the required emergency loads for the design duty cycle when subjected to a battery service test. FREQUENCY In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program In accordance with the Surveillance Frequency Control Program 3.8-19 DIABLO CANYON -UNITS 1 & 2 Unit 1 -Amendment No. Unit 2 -Amendment No.

3.8 ELECTRICAL

POWER SYSTEMS 3.8. 7 Inverters-Operating Inverters

-Operating 3.8.7 LCO 3.8. 7 Four Class 1 E Vital 120 V UPS inverters shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION REQUIRED ACTION A. One required inverter A.1 -----------NOTE---------------

inoperable.

Enter applicable Conditions and Required Actions of LCO 3.8.9, "Distribution Systems -Operating" with any vital 120 V AC bus de-energized.

Restore inverter to OPERABLE status. B. Required Action and B.1 Be in MODE 3. associated Completion AND Time not met. B.2 -------------N()TE-------------

LC() 3.0.4.a is not applicable when entering MODE 4. ----------------------------------

Be in M()DE 4. SURVEILLANCE REQUIREMENTS SURVEILLANCE SR 3.8.7.1 Verify correct inverter voltage and alignment to required AC vital buses. COMPLETION TIME 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months 6 hours 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months FREQUENCY In accordance with the Surveillance Frequency Control Program 3.8-26 DIABL() CANY()N -UNITS 1 & 2 Unit 1 -Amendment No. Ja, 2-GO, Unit 2 -Amendment No. Ja, 2G4,

3.8 ELECTRICAL

POWER SYSTEMS 3.8.9 Distribution Systems-Operating Distribution Systems -Operating 3.8.9 LCO 3.8.9 The required Class 1E AC, DC, and 120 VAC vital bus electrical power distribution subsystems shall be OPERABLE.

APPLICABILITY:

MODES 1, 2, 3, and 4. ACTIONS CONDITION A. One AC electrical power A. 1 distribution subsystem inoperable.

B. One 120 VAC vital bus B.1 subsystem inoperable.

C. One DC electrical power 1 distribution subsystem inoperable.

D. Required Action and D.1 associated Completion AND Time not met. D.2 E. Two required Class 1 E AC, E.1 DC, or 120 VAC vital buses with inoperable distribution subsystems that result in a loss of safety function.

DIABLO CANYON -UNITS 1 & 2 REQUIRED ACTION COMPLETION TIME Restore AC electrical 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months power distribution subsystem to OPERABLE status. Restore 120 VAC vital 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months bus subsystem to OPERABLE status. Restore DC electrical 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months power distribution subsystem to OPERABLE status. Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months -------------NOTE-----------

LCO 3.0.4.a is not applicable when entering MODE 4. --------------------------------

Be in MODE 4. 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months Enter LCO 3.0.3. Immediately 3.8-29 Unit 1 -Amendment No . .:taa, Unit 2 -Amendment No . .:taa, 247, Enclosure Attachment 3 PG&E Letter DCL-14-058 Technical Specification Bases Change(s) (For information only)

BASES ACTIONS (continued)

B.1. B.2.1 and B.2.2 Condition B applies to manual initiation of:

Sl;

Containment Spray;

Phase A Isolation; and

Phase B Isolation.

ESFAS Instrumentation B 3.3.2 This action addresses the train orientation of the SSPS for the functions listed above. If a channel or train is inoperable, 48 hours5.555556e-4 days 0.0133 hours 7.936508e-5 weeks 1.8264e-5 months is allowed to return it to an OPERABLE status. Note that for containment spray and Phase B isolation, failure of one or both channels in one train renders the train inoperable.

Condition B, therefore, encompasses both situations.

The specified Completion Time is reasonable considering that there are two automatic actuation trains and another manual initiation train OPERABLE for each Function, and the low probability of an event occurring during this interval.

If the train cannot be restored to OPERABLE status, the unit must be placed in a MODE in which the LCO does not applyoverall plant risk is reduced. This is done by placing the unit in at least MODE 3 within an additional 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months (54 hours6.25e-4 days 0.015 hours 8.928571e-5 weeks 2.0547e-5 months total time) and in MODE an additional (M-§.Q_hours total time). Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 9). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference

9. the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action. there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action B.2.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met. However. there is no restriction on the use of LCO 3.0.4.b. if applicable.

because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components.

consideration of the results. determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate. LCO 3.0.4 is not applicable to. and the Note does not preclude, changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit. The allowable Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power DIABLO CANYON -UNITS 1 & 2 Rev 88 Page 99 of 169 B 3.3 Markups. doc 0212.1510 ESFAS Instrumentation B 3.3.2 conditions in an orderly manner and without challenging unit systems. C.1. C.2.1 and C.2.2 Condition C applies to the automatic actuation logic and actuation relays for the following functions:

Sl;

Containment Spray;

Phase A Isolation; and

Phase B Isolation This action addresses the train orientation of the SSPS and the master and slave relays. If one train is inoperable, 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months are allowed to restore the train to OPERABLE status. The 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months allowed for restoring the inoperable train to OPERABLE status is justified in Reference

17. The specified Completion Time is reasonable considering that there is another train OPERABLE, and the low probability of an event occurring during this interval.

If the train cannot be restored to OPERABLE status, the unit must be placed in a MODE in which overall plant risk is reducedthe LCO does not apply. This is done by placing the DIABLO CANYON -UNITS 1 & 2 Rev 8B Page 1 00 of 169 B 3.3 Markups.doc 0212.1510 (continued)

BASES ACTIONS C.1. C.2.1 and C.2.2 (continued)

ESFAS Instrumentation B 3.3.2 unit in at least MODE 3 within an additional 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months (30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months total time) and in MODE &4_within an additional (eG--36 hours total time). Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 9). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference

9. the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action. there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action C.2.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met. However. there is no restriction on the use of LCO 3.0.4.b , if applicable.

because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components.

consideration of the results*. determination of the acceptability of entering MODE 4. and establishment of risk management actions, if appropriate.

LCO 3.0.4 is not applicable to, and the Note does not preclude, changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit. The Completion Times are reasonable, based on operating experience, to reach tt:le required unit conditions from full power conditions in an orderly manner and without challenging unit systems. Consistent with the requirement in Reference 17 to include Tier 2 insights into the decision-making process before taking equipment out of service, restrictions on concurrent removal of certain equipment when a logic train is inoperable for maintenance are included.

These restrictions do not apply when a logic train is being tested under the 4-hour bypass Note of Condition C. When a logic train is inoperable for maintenance, the following should not be scheduled:

Activities that degrade the availability of the auxiliary feedwater system, RCS pressure relief system (pressurizer PORVs and safety valves), AMSAC, or turbine trip (to preserve ATWS mitigation capability).

Activities that cause master relays or slave relays in the available train to be unavailable and activities that cause analog channels to be unavailable (to preserve reactor trip and safeguards actuation capability).

DIABLO CANYON-UNITS 1 & 2 Rev 8B Page 101 of 169 B 3.3 Markups.doc 0212.1510 BASES SURVEILLANCE REQUIREMENTS (continued)

REFERENCES SR 3.3.2.12 ESFAS Instrumentation B 3.3.2 SR 3.3.2.12 is the performance of an ACTUATION LOGIC TEST. This SR is applied to the RHR Pump Trip .on RWST Level-Low actuation logic and relays which are not processed through the SSPS. The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is controlled under the Surveillance Frequency Control Program. SR 3.3.2.13 SR 3.3.2.13 is the performance of a TADOT. This test is a check of the Manual Actuation Function for AFW. Each Manual Actuation Function is tested up to, and including, the master relay coils. In some instances, the test includes actuation of the end device (i.e., pump starts, valve cycles, etc.). The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is controlled under the Surveillance Frequency Control Program. The SR is modified by a Note that excludes verification of setpoints during the TADOT for manual initiation Functions.

The manual initiation Functions have no associated setpoints.

1. FSAR, Chapter 6. 2. FSAR, Chapter 7. 3. FSAR, Chapter 15. 4. IEEE Std.279-1971.

5. 10 CFR 50.49. 6. Blank 7. WCAP-13900, "Extension of Slave Relay Surveillance Test intervals", April 1994 8. WCAP-10271-P-A, Supplement 2, Rev. 1, June 1990. 9. WCAP-16294-NP-A, Rev. 1. "Risk-Informed Evaluation of Changes to Technical Specification Required Action Endstates for Westinghouse NSSS PWRs." June 2010. (continued)

DIABLO CANYON -UNITS 1 & 2 Rev 8B Page 122 of 169 B 3.3 Markups.doc 0212.1510 BASES ACTIONS (continued)

CRVS Actuation Instrumentation B 3.3.7 A Note has been added to the ACTIONS indicating that separate Condition entry is allowed for each Function.

The Conditions of this Specification may be entered independently for each Function listed in Table 3.3.7-1 in the accompanying LCO. The Completion Time(s) of the inoperable channel(s)/train(s) of a Function will be tracked separately for each Function starting from the time the Condition was entered for that Function.

A.1 Condition A applies to the actuation train Function of the CRVS, the intake radiation monitor channel Functions, and the manual channel Functions.

If one complete actuation train is inoperable, or one complete intake radiation monitor channel is inoperable in one or more Functions, 7 days are permitted to restore it to OPERABLE status. The 7 day Completion Time is the same as is allowed if one train of the mechanical portion of the system is inoperable.

The basis for this Completion Time is the same as provided in LCO 3.7.10. If the complete channel/train cannot be restored to OPERABLE status, one CRVS train must be placed in the pressurization mode of operation.

This accomplishes the actuation instrumentation Function and places the unit in a conservative mode of operation.

B.1.1 and B.1.2 Condition B applies to the failure of two complete CRVS actuation trains, two complete intake radiation monitor channels, or two manual channels.

The first Required Action is to place one CRVS train in the pressurization mode of operation immediately.

This accomplishes the actuation instrumentation Function that may have been lost and places the unit in a conservative mode of operation.

Both trains cannot be placed in the pressurization mode since the design of the system is such that operation of two pressurization fans would overpressurize the supply ducting to the filters. The applicable Conditions and Required Actions of LCO 3. 7.10 must also be entered for the CRVS train made inoperable by the inoperable actuation instrumentation.

This ensures appropriate limits are placed upon train inoperability as discussed in the Bases for LCO 3.7.10. C.1 and C.2 Condition C applies when the Required Action and associated Completion Time for Condition A orB have not been met and the unit is in MODE 1, 2, 3, or 4. The unit must be brought to a MODE in which overall plant risk is reducedthe LCO requirements are not applicable.

To achieve this status, the unit must be brought to MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE B-1_within J&-.1f..hours. (continued)

DIABLO CANYON -UNITS 1 & 2 Rev 8B Page 161 of 169 B 3.3 Markups.doc 0212.1510 BASES ACTIONS SURVEILLANCE REQUIREMENTS C.1 and C.2 (continued)

CRVS Actuation Instrumentation B 3.3.7 Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 4). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat, which provides diversity and defense in depth. As stated in Reference 4, the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action. there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action C.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met. However. there is no restriction on the use of LCO 3.0.4.b, if applicable, because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components, consideration of the results. determination of the acceptability of entering MODE 4, and establishment of risk management actions, if appropriate.

LCO 3.0.4 is not applicable to, and the Note does not preclude, changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit. The allowed Completion Times are reasonable, based on operating experience, to reach the required unit conditions from full power conditions in an orderly manner and without challenging unit systems. D.1 and D.2 Condition D applies when the Required Action and associated Completion Time for Condition A or B have not been met when recently irradiated fuel assemblies are being moved. Movement of recently irradiated fuel assemblies must be suspended immediately to reduce the risk of accidents that would require CRVS actuation.

u Condition E applies when the Required Action and associated Completion Time for Condition A or B have not been met in MODE 5 or 6. Actions must be initiated to restore the inoperable train(s) to OPERABLE status immediately to ensure adequate isolation capability in the event of a waste gas decay tank rupture: A Note has been added to the SR Table to clarify that Table 3.3.7-1 determines which SRs apply to which CRVS Actuation Functions.

SR 3.3.7.1 DIABLO CANYON-UNITS 1 & 2 Rev 8B Page 162 of 169 B 3.3 Markups.doc 0212.1510

BASES SURVEILLANCE REQUIREMENTS (continued)

REFERENCES SR 3.3.7.5 CRVS Actuation Instrumentation B 3.3.7 SR 3.3.7.5 is the performance of a SLAVE RELAY TEST. This test energizes the Slave Relays and verifies actuation of the equipment to the pressurization mode. Although there are no "Slave Relays" as in the SSPS, this surveillance was maintained to preserve the format of the standard specification.

The surveillance is intended to ensure that the actuation relays, downstream of the logic, function to actuate the pressurization mode equipment.

Since the radiation monitors directly actuate the actuation relays, this test is performed as part of the performance of SR 3.3.7.2. The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is controlled under the Surveillance Frequency Control Program. SR 3.3.7.6 SR 3.3.7.6 is the performance of a TADOT. This test is a check of the Manual Actuation Functions.

Each Manual Actuation Function is tested up to, and including, the master relay coils. In some instances, the test includes actuation of the end device (i.e., pump starts, valve cycles, etc.). The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is controlled under the Surveillance Frequency Control Program. The SR is modified by a Note that excludes verification of setpoints during the TADOT. The Functions tested have no setpoints associated with them. SR 3.3.7.7 CHANNEL CALIBRATION is a complete check of the instrument loop, including the sensor. The test verifies that the channel responds to a measured parameter within the necessary range and accuracy.

The Surveillance Frequency is based on operating experience, equipment reliability, and plant risk and is controlled under the Surveillance Frequency Control Program.

1. WCAP-13878, "Reliability of Potter & Brumfield MDR Relays", June 1994. 2. WCAP-13900, "Extension of Slave Relay Surveillance Test Intervals", April1994.

3. License Amendment 184/186, January 3, 2006. 4. WCAP-16294-NP-A, Rev. 1. "Risk-Informed Evaluation of Changes to Technical Specification Required Action Endstates for Westinghouse NSSS PWRs." June 2010. DIABLO CANYON -UNITS 1 & 2 Rev 8B Page 165 of 169 B 3.3 Markups.doc 0212.1510 BASES ACTIONS (continued)

SURVEILLANCE REQUIREMENTS 8.1 and 8.2 RCS Operational LEAKAGE 8 3.4.13 If any pressure boundary LEAKAGE exists, or primary to secondary LEAKAGE is not within limit, or if unidentified or identified LEAKAGE cannot be reduced to within limits within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months , the reactor must be brought to lower pressure conditions to reduce the severity of the LEAKAGE and its potential consequences.

It should be noted that LEAKAGE past seals and gaskets is not pressure boundary LEAKAGE. The reactor must be brought to MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE &1, within This action reduces the LEAKAGE and also reduces the factors that tend to degrade the pressure boundary.

The allowed Completion Times are reasonable, based on operating experience, to reach the required plant conditions from full power conditions in an orderly manner and without challenging plant systems. In MODE §1., the pressure stresses acting on the RCPB are much lower, and further deterioration is much less likely. Remaining within the Applicability of the..LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 9). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat. which provides diversity and defense in depth. As stated in Reference

9. the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action. there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

Required Action 8.2 is modified by a Note that states that LCO 3.0.4.a is not applicable when entering MODE 4. This Note prohibits the use of LCO 3.0.4.a to enter MODE 4 during startup with the LCO not met. However. there is no restriction on the use of LCO 3.0.4.b, if applicable.

because LCO 3.0.4.b requires performance of a risk assessment addressing inoperable systems and components.

consideration of the results. determination of the acceptability of entering MODE 4. and establishment of risk management actions. if appropriate.

LCO 3.0.4 is not applicable to. and the Note does not preclude.

changes in MODES or other specified conditions in the Applicability that are required to comply with ACTIONS or that are part of a shutdown of the unit. SR 3.4.13.1 Verifying RCS LEAKAGE to be within the LCO limits ensures the integrity of the RCPB is maintained.

Pressure boundary LEAKAGE would at first appear as unidentified LEAKAGE and can only be positively identified by inspection.

It should be noted that LEAKAGE past seals and gaskets is not pressure boundary LEAKAGE. Unidentified LEAKAGE and identified LEAKAGE are determined by performance of an RCS water inventory balance. DDIABLO CANYON-UNITS 1 & 2 Rev 8A Page 75 of 106 B 3.4 Markups.doc 0214.1406 BASES (continued)

REFERENCES

1. 2. 3. 4. 5. 6. 7. 8. *--9. 10 CFR 50, Appendix A, GDC 4 and 30. Regulatory Guide 1.45, May 1973. FSAR, Section 15. FSAR, Section 3. RCS Operational LEAKAGE 8 3.4.13 NUREG-1061, Volume 3, November, 1984. 10 CFR 100. NEI 97-06, "Steam Generator Program Guidelines." EPRI, "Pressurized Water Reactor Primary-to-Secondary Leak Guidelines." WCAP-16294-NP-A.

Rev. 1. " Risk-Informed Evaluation of Changes to Technical Specification Required Action Endstates for Westinghouse NSSS PWRs." June 2010. DDIABLO CANYON-UNITS 1 & 2 Rev 8A Page 78 of 1 06 8 3.4 Markups.doc 0214.1406 BASES ACTIONS (continued)

A.1. A.2.1. and A.2.2 RCS PIV Leakage B 3.4.14 The flow path must be isolated by two valves. Required ACTIONS A.1, A.2.1, and A.2.2 are modified by a Note that the valves used for isolation must meet the same leakage requirements as the PIVs and must be within the RCPB or the high pressure portion of the system. Required ACTION A.1 requires that the isolation with one valve must be performed within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months . Four hours provides time to reduce leakage in excess of the allowable limit and to isolate the affected system if leakage cannot be reduced. The 4-hour Completion Time allows the actions and restricts operation with leaking isolation valves. Required ACTIONS A.2.1 and A.2.2 require that the double isolation barrier of two valves be restored by closing some other valve qualified for isolation or restoring the RCS PIV to within limits. The following isolation valve may be used to satisfy Technical Specification 3.4.14 Required Actions A.1 or A.2.1 when in Condition A for valves 8740A and 8740B. VALVE NUMBER 8703 FUNCTION RHR third off isolation valve to RCS hot legs The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months Completion Time after exceeding the limit allows for the restoration of the leaking PIV to OPERABLE status or use of a third off isolation valve. The 72 hour8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months completion time after exceeding the limit considers the time required to complete the ACTION and the low probability of a second valve failing during this time period. B.1 and B.2 If leakage cannot be reduced, the system isolated, or the other Required Actions accomplished, the plant must be brought to a MODE in which overall plant risk is reducedthe requirement does not apply. To achieve this status, the plant must be brought to MODE 3 within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and MODE .§4.within This action may reduce the leakage and also reduces the potential for a LOCA outside containment.

Remaining within the Applicability of the LCO is acceptable to accomplish short duration repairs to restore inoperable equipment because the plant risk in MODE 4 is similar to or lower than MODE 5 (Ref. 1 0). In MODE 4 the Steam Generators and Residual Heat Removal System are available to remove decay heat. which provides diversity and defense in depth. As stated in Reference 10, the steam turbine driven Auxiliary Feedwater Pump must be available to remain in MODE 4. Should Steam Generator cooling be lost while relying on this Required Action, there are preplanned actions to ensure long-term decay heat removal. Voluntary entry into MODE 5 may be made as it is also acceptable from a risk perspective.

DDIABLO CANYON-UNITS 1 & 2 Rev 8A Page 82 of 1 07 B 3.4 Markups.doc 0214.1433

v t e Letter Sequence Other
TAC:MF4521, Change in Technical Specifications End States - WCAP-16294 (Approved, Closed)
Initiation Request, Request, Request Acceptance Administration Questions 8 April 2015 Answers 7 May 2015 Results Approval Other: ML14209B075
MONTHYEAR2015-04-08 [Table View]

ML14209B075

Text

3.8 ELECTRICAL

3.3 INSTRUMENTATION

3.3.2 COMPLETION

3.3 INSTRUMENTATION

3.5 EMERGENCY

3.5 EMERGENCY

3.6 CONTAINMENT

3.6 CONTAINMENT

3.7 PLANT

3.7 PLANT

3.7 PLANT

3.7 PLANT

3.8.1 COMPLETION

3.8.1 COMPLETION

3.8.4 COMPLETION

3.8.4 ACTIONS

3.8 ELECTRICAL

3.8 ELECTRICAL

Navigation menu

Search