Text

Tech Spec Pages for Amendments 291 and 273 Safety Evaluation Regarding Allowed Outage Time Extension for the Emergency Diesel Generators
	ML052730320
Person / Time
Site:	Cook
Issue date:	09/30/2005
From:	; NRC/NRR/DLPM
To:	;
	Spaulding D, NRR/DE/EEIB, 415-2928
Shared Package
ML052720081	List: ML052720032; ML052730320;
References
	TAC MC4525, TAC MC4526
	Download: ML052730320 (34)
	v • d • e

AC Sources - Operating 3.8.1 ACTIONS

_hitTC__

IN4 V1JI LCO 3.0.4.b is not applicable to DGs.

CONDITION REQUIRED ACTION COMPLETION TIME A. One required offsite A.1 --- NOTE D-circuit inoperable. Not applicable if a required Unit 2 offsite circuit is inoperable.

Perform SR 3.8.1.1 for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months required OPERABLE offsite circuit. AND Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter AND A.2 Declare required feature(s) 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from with no offsite power discovery of no offsite available inoperable when power to one train its redundant required concurrent with feature(s) is inoperable. inoperability of redundant required feature(s)

AND A.3 Restore required offsite 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months circuit to OPERABLE status. AND 17 days from l discovery of failure to meet LCO 3.8.1.a or b Cook Nuclear Plant Unit 1 3.8.1-2 Amendment No. I~, 291

AC Sources - Operating 3.8.1 ACTIONS (continued) I CONDITION JREQ UIRED ACTION COMPLETION TIME B. One required DG B.1 Verify both supplemental 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable. diesel generators are available. AND Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter AND B.2 --- NOTE--

Not applicable if a required Unit 2 DG is inoperable.

Perform SR 3.8.1.1 for the 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months required offsite circuit(s).

AND Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter AND B.3 Declare required feature(s) 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months from I supported by the inoperable discovery of DG inoperable when its Condition B required redundant concurrent with feature(s) is inoperable. inoperability of redundant required feature(s)

AND

-BA-.1 -Determin-eOPERABLE DG(s) is not inoperable due to common cause failure.

OR B.4.2 Perform SR 3.8.1.2 for 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months I OPERABLE DG(s).

AND Cook Nuclear Plant Unit 1 3.8.1-3 Amendment No. 2897, 291

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B.5 Restore required DG to 14 days OPERABLE status.

AND 17 days from I discovery of failure to meet LCO 3.8.1.a orb C. Required Action and C.1 Restore both supplemental 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months associated Completion diesel generators to Time of Required Action available status.

B.1 not met.

OR C.2 Restore required DG to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

D. Two required offsite D.1 Declare required feature(s) 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from I circuits inoperable. inoperable when its discovery of redundant required Condition D I feature(s) is inoperable. concurrent with inoperability of redundant required features AND D.2 Restore one required offsite 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months I circuit to OPERABLE status.

Cook Nuclear Plant Unit 1 3.8.1-4 Amendment No. I-7, 291

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME E. One required offsite ------ NOTES -- -

circuit inoperable. Enter applicable Conditions and Required Actions of LCO 3.8.9, AND "Distribution Systems - Operating,"

when Condition E is entered with no One required DG AC power source to any train.

inoperable.

E.1 Restore required offsite 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months circuit to OPERABLE status.

OR E.2 Restore required DG to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months OPERABLE status.

F. Two required DGs F.1 Restore one required DG to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months I inoperable. OPERABLE status.

G. Required Action and G.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months I associated Completion Time of Condition A, C, AND D, E, or F not met.

G.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months OR Required Action and Associated Completion Time of Required Action B.2, B.3, B.4.1, B.4.2, or B.5 not met.

H. Three or more required H.1 Enter LCO 3.0.3. Immediately I AC sources inoperable.

Cook Nuclear Plant Unit 1 3.8.1-5 Amendment No. 28~7, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS

-- NOTEES---- -

1. SR 3.8.1.1 through SR 3.8.1.22 are applicable only to the AC electrical power sources for Unit 1.

2. SR 3.8.1.23 is applicable only to the Unit 2 required AC electrical power sources. The Surveillances referenced in SR 3.8.1.23 are the Unit 2 Surveillance Requirements.

SURVEILLANCE FREQUENCY SR 3.8.1.1 Verify correct breaker alignment and indicated 7 days power availability for each offsite circuit.

SR 3.8.1.2 ----- NOTES-

1. All DG starts may be preceded by an engine prelube period and followed by a warmup period prior to loading.

2. A modified DG start involving gradual acceleration to synchronous speed may be used for this SR as recommended by the manufacturer. When modified start procedures are not used, the time, voltage, and frequency tolerances of SR 3.8.1.8 must be met.

Verify each DG starts from standby conditions and 31 days achieves steady state voltage 2 3910 V and s 4400 V, and frequency 2 59.4 Hz and 5 61.2 Hz.

Cook Nuclear Plant Unit 1 3.8.1-6 Amendment No. 297-, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued) I SURVEILLANCE FREQUENCY SR 3.8.1.3 --------NOTES-

1. DG loadings may include gradual loading as recommended by the manufacturer.

2. Momentary transients outside the load range do not invalidate this test.

3. This Surveillance shall be conducted on only one DG at a time.

4. This SR shall be preceded by and immediately follow without shutdown a successful performance of SR 3.8.1.2 or SR 3.8.1.8.

Verify each DG is synchronized and loaded and 31 days operates for a 60 minutes at a load 2 3150 kW and s 3500 kW.

SR 3.8.1.4 Verify each day tank contains 2 101.4 gal of fuel oil. 31 days SR 3.8.1.5 Check for and remove accumulated water from each 31 days day tank.

SR 3.8.1.6 Verify each required DG air start receiver pressure 31 days is 2 190 psig.

SR 3.8.1.7 Verify each fuel oil transfer system operates to 92 days automatically transfer fuel oil from the storage tank to the day tank.

Cook Nuclear Plant Unit 1 3.8.1-7 Amendment No. 287, 291

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.8 ---- NOTE -

All DG starts may be preceded by an engine prelube period.

Verify each DG starts from standby condition and 184 days achieves:

a. In s 10 seconds, voltage 2 3740 V and frequency 2 58.8 Hz; and

b. Steady state voltage 2 3910 V and s 4400 V, and frequency 2 59.4 Hz and s 61.2 Hz.

+

SR 3.8.1.9 ---- NOTE------

SR 3.8.1.9.a is only required to be met when the auxiliary source is supplying the electrical power distribution subsystem.

Verify: 24 months

a. Automatic transfer from the auxiliary source to the preferred offsite circuit; and

b. Manual alignment to the alternate offsite circuit.

Cook Nuclear Plant Unit 1 ..3.8.1-8 Amendment No. 2897-, 291

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY

.1-SR 3.8.1.10 ------ NOTES- -- -

1. This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

2. If performed with the DG synchronized with offsite power, it shall be performed at a power factor < 0.86. However, if grid conditions do not permit, the power factor limit is not required to be met. Under this condition the power factor shall be maintained as close to the limit as practicable.

Verify each DG rejects a load greater than or equal 24 months to its associated single largest post-accident load, and:

a. Following load rejection, the frequency is 5 64.4 Hz;

b. Within 2 seconds following load rejection, the voltage is 2 3910 V and 5 4400 V; and

c. Within 2 seconds following load rejection, the frequency is 2 59.4 Hz and 5 61.2 Hz.

Cook Nuclear Plant Unit 1 3.8.1-9 Amendment No. 297-, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.11 -NOTES----

1. This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

2. If performed with DG synchronized with offsite power, it shall be performed at a power factor s 0.86. However, if grid conditions do not permit, the power factor limit is not required to be met. Under this condition the power factor shall be maintained as close to the limit as practicable.

Verify each DG does not trip and voltage is 24 months maintained s 5000 V during and following a load rejection of Ž 3150 kW and s 3500 kW.

Cook Nuclear Plant Unit 1 3.8.1-10 Amendment No. 287, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.12 - -------- NOTES

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated loss of offsite power 24 months signal:

a. De-energization of emergency buses;

b. Load shedding from emergency buses;

c. DG auto-starts from standby condition and:

1. Energizes permanently connected loads in

10 seconds;

2. Energizes auto-connected shutdown loads through time delay relays, where applicable;

3. Maintains steady state voltage.

Ž3910Vands4400V;

4. Maintains steady state frequency 2 59.4 Hz and s 61.2 Hz; and

5. Supplies permanently connected and auto-connected shutdown loads for 2 5 minutes.

Cook Nuclear Plant Unit 1 3.8.1-1 1 Amendment No. 28, 291

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.13 ------ NOTES

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not normally be performed in MODE 1 or 2. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated Engineered Safety 24 months Feature (ESF) actuation signal each DG auto-starts from standby condition and:

a. In s 10 seconds achieves voltage 2 3740 V and frequency 2 58.8 Hz;

b. Achieves steady state voltage 2 3910 V and 5 4400 V and frequency 2 59.4 Hz and s 61.2 Hz;

c. Operates for 2 5 minutes;

d. Permanently connected loads remain energized from the offsite power system; and

e. Emergency loads are auto-connected through the time delay relays, where applicable, from the offsite power system.

Cook Nuclear Plant Unit 1 3.8.1-12 Amendment No. I8, 291

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.14 ~-~NOTE--- ---

This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify each DG's automatic trips are bypassed on 24 months an actual or simulated loss of voltage signal on the emergency bus or an actual or simulated ESF actuation signal except:

a. Engine overspeed; and

b. Generator differential current.

1-SR 3.8.1.15 ------ NOTES-------

1. Momentary transients outside the load and power factor ranges do not invalidate this test.

2. This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

3. If performed with DG synchronized with offsite power, it shall be performed at a power factor s 0.86. However, if grid conditions do not permit, the power factor limit is not required to be met. Under this condition the power factor shall be maintained as close to the limit as practicable.

Verify each DG operates for 2 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months at a load 24 months 2 3150 kW and s 3500 kW.

Cook Nuclear Plant Unit 1 3.8.1-13 Amendment No. 287, 291

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.16 -- -- OTES-

1. This Surveillance shall be performed within 5 minutes of shutting down the DG after the DG has operated 2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months loaded 2 3150 kW and s 3500 kW.

Momentary transients outside of load range do not invalidate this test.

2. All DG starts may be preceded by an engine prelube period.

Verify each DG starts and achieves: 24 months

a. In s 10 seconds, voltage 2 3740 V and frequency > 58.8 Hz; and

b. Steady state voltage 2 3910 V and

4400 V and frequency 2 59.4 Hz and s 61.2 Hz.

SR 3.8.1.17 --- NOTE-This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify each DG: 24 months

a. Synchronizes with offsite power source while loaded with emergency loads upon a simulated restoration of offsite power;

b. Transfers loads to offsite power source; and

c. Returns to ready-to-load operation.

Cook Nuclear Plant Unit 1 3.8.1 -14 Amendment No. I97, 291

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.18 ---- NOTES-This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify that the automatic sequence timing relays are 24 months OPERABLE with each load sequence time within

+/-5% of its required value and that each load is sequenced on within the design allowable time limit.

Cook Nuclear Plant Unit 1 3.8.1-1 5 Amendment No. 287, 290, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.19 NOTES-

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated loss of offsite power 24 months signal in conjunction with an actual or simulated ESF actuation signal:

a. De-energization of emergency buses;

b. Load shedding from emergency buses; and

c. DG auto-starts from standby condition and:

1. Energizes permanently connected loads in 5 10 seconds;

2. Energizes auto-connected emergency loads through time delay relays, as applicable;

3. Achieves steady state voltage 2 3910 V and 5 4400 V;

4. Achieves steady state frequency 2 59.4 Hz and c 61.2 Hz; and

5. Supplies permanently connected and auto-connected emergency loads for 2 5 minutes.

Cook Nuclear Plant Unit 1 3.8. 1-16 Amendment No. I8, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.20 ---- NOTE--

1. This SR is only required to be met when the applicable DG is connected to its load test resistor bank.

2. This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify, with a DG operating in test mode and 24 months connected to its load test resistor bank, an actual or simulated ESF actuation signal overrides the test mode by:

a. Returning DG to ready-to-load operation; and

b. Verifying the emergency loads are serviced by offsite power.

SR 3.8.1.21 ------- -NOTE-----i--

This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced.

Credit may be taken for unplanned events that satisfy this SR.

Verify, with a DG operating in test mode and 24 months connected to its bus, an actual or simulated ESF actuation signal overrides the test mode by:

a. Returning DG to ready-to-load operation; and

b. Verifying the emergency loads are serviced by offsite power.

Cook Nuclear Plant Unit 1 3.8.1-17 Amendment No. 2-87~, 291

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.22 -- -- O TE---

All DG starts may be preceded by an engine prelube period.

Verify when started simultaneously from standby 10 years condition, each DG achieves, in s 10 seconds, voltage 2 3740 V and frequency 2 58.8 Hz.

SR 3.8.1.23 - - -- NOTES--

1. When Unit 2 is in MODE 5 or 6, or moving irradiated fuel assemblies in the containment or auxiliary building, the following Unit 2 SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.10, SR 3.8.1.11, SR 3.8.1.12, SR 3.8.1.15, SR 3.8.1.16, SR 3.8.1.17, and SR 3.8.1.18.

2. Unit 2 SR 3.8.1.9.a is only required to be met when the auxiliary source is supplying the required Unit 2 electrical power distribution subsystem.'

For required Unit 2 AC sources, the SRs of Unit 2. In accordance Specification 3.8.1, except SR 3.8.1.9.b, with applicable SR 3.8.1.13, SR 3.8.1.14 (ESF actuation signal SRs portion only), SR 3.8.1.19, SR 3.8.1.20, SR 3.8.1.21, and SR 3.8.1.22, are applicable.

Cook Nuclear Plant Unit 1 3.8.1-18 Amendment No. 297-, 291

AC Sources - Operating 3.8.1 ACTIONS Li p--NODI-- - ---- - -______

LCO 3.0.4.b is not applicable to DGs.

CONDITION REQUIRED ACTION COMPLETION TIME A. One required offsite A.1 - NOTEE---

circuit inoperable. Not applicable if a required Unit 1 offsite circuit is inoperable.

Perform SR 3.8.1.1 for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months required OPERABLE offsite circuit. AND Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter AND A.2 Declare required feature(s) 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months from with no offsite power discovery of no offsite available inoperable when power to one train its redundant required concurrent with feature(s) is inoperable. inoperability of redundant required feature(s)

AND A.3 Restore required offsite 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months circuit to OPERABLE status. AND 17 days from discovery of failure to meet LCO 3.8.1.a or b Cook Nuclear Plant Unit 2 3.8.1-2 Amendment No. 2-9, 273

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B. One required DG B.1 Verify both supplemental 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months inoperable. diesel generators are available. AND Once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months thereafter AND B.2 - NOTES--

Not applicable if a required Unit 1 DG is inoperable.

Perform SR 3.8.1.1 for the 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months required offsite circuit(s).

AND Once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter AND B.3 Declare required feature(s) 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months from I supported by the inoperable discovery of DG inoperable when its Condition B required redundant concurrent with feature(s) is inoperable. inoperability of redundant required feature(s)

AND B.4.1 Determine OPERABLE 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months DG(s) is not inoperable due to common cause failure.

OR B.4.2 Perform SR 3.8.1.2 for 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months OPERABLE DG(s).

AND Cook Nuclear Plant Unit 2 3.8.1-3 Amendment No. 26, 273

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME B.5 Restore required DG to 14 days OPERABLE status.

AND 17 days from discovery of failure to meet LCO 3.8.1.a or b C. Required Action and C.1 Restore both supplemental 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months associated Completion diesel generators to Time of Required Action available status.

B.1 not met.

OR C.2 Restore required DG to 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months OPERABLE status.

D. Two required offsite D.1 Declare required feature(s) 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months from I circuits inoperable. inoperable when its discovery of redundant required Condition D I feature(s) is inoperable. concurrent with inoperability of redundant required features AND D.2 Restore one required offsite 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months circuit to OPERABLE status.

Cook Nuclear Plant Unit 2 3.8.1-4 Amendment No. 26, 273

AC Sources - Operating 3.8.1 ACTIONS (continued)

CONDITION REQUIRED ACTION COMPLETION TIME E. One required offsite -- - NOTE---

circuit inoperable. Enter applicable Conditions and Required Actions of LCO 3.8.9, AND "Distribution Systems - Operating,"

when Condition E is entered with no One required DG AC power source to any train.

inoperable.

E.1 Restore required offsite 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months I circuit to OPERABLE status.

OR E.2 Restore required DG to 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months OPERABLE status.

F. Two required DGs F.1 Restore one required DG to 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months I inoperable. OPERABLE status.

G. Required Action and G.1 Be in MODE 3. 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months associated Completion Time of Condition A, C, AND D, E, or F not met.

G.2 Be in MODE 5. 36 hours4.166667e-4 days 0.01 hours 5.952381e-5 weeks 1.3698e-5 months OR Required Action and Associated Completion Time of Required Action B.2, B.3, B.4.1, B.4.2, or B.5 not met.

H. Three or more required H.1 Enter LCO 3.0.3. Immediately AC sources inoperable.

Cook Nuclear Plant Unit 2 3.8.1-5 Amendment No. 26, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS KZif--rr I

I

1. SR 3.8.1.1 through SR 3.8.1.22 are applicable only to the AC electrical power sources for Unit 2.

2. SR 3.8.1.23 is applicable only to the Unit 1 required AC electrical power sources. The Surveillances referenced in SR 3.8.1.23 are the Unit 1 Surveillance Requirements.

SURVEILLANCE FREQUENCY SR 3.8.1.1 Verify correct breaker alignment and indicated 7 days power availability for each offsite circuit.

SR 3.8.1.2 -- ---- NOTES-- -

1. All DG starts may be preceded by an engine prelube period and followed by a warmup period prior to loading.

2. A modified DG start involving gradual acceleration to synchronous speed may be used for this SR as recommended by the manufacturer. When modified start procedures are not used, the time, voltage, and frequency tolerances of SR 3.8.1.8 must be met.

Verify each DG starts from standby conditions and 31 days achieves steady state voltage 2 3910 V and s 4400 V, and frequency 2 59.4 Hz and s 61.2 Hz.

Cook Nuclear Plant Unit 2 3.8.1 -6 Amendment No. i6-, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.3 - -NOTES

1. DG loadings may include gradual loading as recommended by the manufacturer.

2. Momentary transients outside the load range do not invalidate this test.

3. This Surveillance shall be conducted on only one DG at a time.

4. This SR shall be preceded by and immediately follow without shutdown a successful performance of SR 3.8.1.2 or SR 3.8.1.8.

Verify each DG is synchronized and loaded and 31 days operates for 2 60 minutes at a load > 3150 kW and s 3500 kW.

SR 3.8.1.4 Verify each day tank contains 2 101.4 gal of fuel oil. 31 days SR 3.8.1.5 Check for and remove accumulated water from each 31 days day tank.

SR 3.8.1.6 Verify each required DG air start receiver pressure 31 days is 2 190 psig.

SR 3.8.1.7 Verify each fuel oil transfer system operates to 92 days automatically transfer fuel oil from the storage tank to the day tank.

Cook Nuclear Plant Unit 2 3.8.1-7 Amendment No. 26D), 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.8 ~---NOTE----a All DG starts may be preceded by an engine prelube period.

Verify each DG starts from standby condition and 184 days achieves:

a. In s 10 seconds, voltage 2 3740 V and frequency > 58.8 Hz; and

b. Steady state voltage 2 3910 V and 5 4400 V, and frequency 2 59.4 Hz and s 61.2 Hz.

SR 3.8.1.9 ---- NOTE----

SR 3.8.1.9.a is only required to be met when the auxiliary source is supplying the electrical power distribution subsystem.

Verify: 24 months

a. Automatic transfer from the auxiliary source to the preferred offsite circuit; and

b. Manual alignment to the alternate offsite circuit.

Cook Nuclear Plant Unit 2 3.8.1-8 Amendment No. 2-6, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.10 --- NOTES----a-

1. This Surveillance shall not normally be performed in MODE I or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

2. If performed with the DG synchronized with offsite power, it shall be performed at a power factor 5 0.86. However, if grid conditions do not permit, the power factor limit is not required to be met. Under this condition the power factor shall be maintained as close to the limit as practicable.

Verify each DG rejects a load greater than or equal 24 months to its associated single largest post-accident load, and:

a. Following load rejection, the frequency is 5 64.4 Hz;

b. Within 2 seconds following load rejection, the voltage is 2 3910 V and s 4400 V; and

c. Within 2 seconds following load rejection, the frequency is 2 59.4 Hz and 5 61.2 Hz.

Cook Nuclear Plant Unit 2 3.8.1-9 Amendment No. 2I, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.11 -NOTES------

1. This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

2. If performed with DG synchronized with offsite power, it shall be performed at a power factor 5 0.86. However, if grid conditions do not permit, the power factor limit is not required to be met. Under this condition the power factor shall be maintained as close to the limit as practicable.

Verify each DG does not trip and voltage is 24 months maintained

5000 V during and following a load rejection of 2 3150 kW and s 3500 kW.

Cook Nuclear Plant Unit 2 3.8.1-10 Amendment No. 269, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.12 - --- NOTES--

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated loss of offsite power 24 months signal:

a. De-energization of emergency buses;

b. Load shedding from emergency buses;

c. DG auto-starts from standby condition and:

1. Energizes permanently connected loads in s 10 seconds;

2. Energizes auto-connected shutdown loads through time delay relays, where applicable;

3. Maintains steady state voltage.

2 3910 V and s 4400 V;

4. Maintains steady state frequency 2 59.4 Hz and s 61.2 Hz; and

5. Supplies permanently connected and auto-connected shutdown loads for 2 5 minutes.

Cook Nuclear Plant Unit 2 3.8.1-1 1 Amendment No. 2699, 273

AC Sources - Operating 3.8.1 I

SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY 4

SR 3.8.1.13 a-------- NOTES-

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not normally be performed in MODE 1 or 2. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines .the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated Engineered Safety 24 months Feature (ESF) actuation signal each DG auto-starts from standby condition and:

a. In s 10 seconds achieves voltage 2 3740 V and frequency 2 58.8 Hz;

b. Achieves steady state voltage 2 3910 V and s 4400 V and frequency 2 59.4 Hz and s 61.2 Hz;

c. Operates for 2 5 minutes;

d. Permanently connected loads remain energized from the offsite power system; and

e. Emergency loads are auto-connected through the time delay relays, where applicable, from the offsite power system.

Cook Nuclear Plant Unit 2 3.8.1-12 Amendment No. i-6, 273

AC Sources - Operating 3.8 1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY

1 SR 3.8.1.14 ----- NOTE--

This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify each DG's automatic trips are bypassed on 24 months an actual or simulated loss of voltage signal on the emergency bus or an actual or simulated ESF actuation signal except:

a. Engine overspeed; and .:

b. Generator differential current.

+

SR 3.8.1.15 - -~-NOTES-------

1. Momentary transients outside the load and power factor ranges do not invalidate this test.

2. This Surveillance shall not normally be performed in MODE 1 or 2. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

3. If performed with DG synchronized with offsite power, it shall be performed at a power factor s 0.86. However, if grid conditions do not permit, the power factor limit is not required to be met. Under this condition the power factor shall be maintained as close to the limit as practicable.

Verify each DG operates for 2 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months at a load 24 months 23150 kW and s 3500 kW.

Cook Nuclear Plant Unit 2 3.8.1-13 Amendment No. 2-69, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.16 --------- NOTES-

1. This Surveillance shall be performed within 5 minutes of shutting down the DG after the DG has operated 2 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months loaded 2 3150 kW and s 3500 kW.

Momentary transients outside of load range do not invalidate this test.

2. All DG starts may be preceded by an engine prelube period.

Verify each DG starts and achieves: 24 months

a. In s 10 seconds, voltage 2 3740 V and frequency - 58.8 Hz; and

b. Steady state voltage 2 3910 V and 5 4400 V and frequency 2 59.4 Hz and 5 61.2 Hz.

SR 3.8.1.17 - ------ NOTE--

This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify each DG: 24 months

a. Synchronizes with offsite power source while loaded with emergency loads upon a simulated restoration of offsite power;

b. Transfers loads to offsite power source; and

c. Returns to ready-to-load operation.

Cook Nuclear Plant Unit 2 3.8.1-14 Amendment No. I6, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.18 ---- NOTE---go-This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, this Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify that the automatic sequence timing relays are 24 months OPERABLE with each load sequence time within

+/-5% of its required value and that each load is sequenced on within the design allowable time limit.

Cook Nuclear Plant Unit 2 3.8.1-15 Amendment No. 26O, 272, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.19 -NOTES-- --

1. All DG starts may be preceded by an engine prelube period.

2. This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify on an actual or simulated loss of offsite power 24 months signal in conjunction with an actual or simulated ESF actuation signal:

a. De-energization of emergency buses;

b. Load shedding from emergency buses; and

c. DG auto-starts from standby condition and:

1. Energizes permanently connected loads in s 10 seconds;

2. Energizes auto-connected emergency loads through time delay relays, as applicable;

3. Achieves steady state voltage 2 3910 V and s 4400 V;

4. Achieves steady state frequency 2 59.4 Hz and s 61.2 Hz; and

5. Supplies permanently connected and auto-connected emergency loads for 2 5 minutes.

Cook Nuclear Plant Unit 2 3.8.1-1 6 Amendment No. I9, 273

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.20 --- NOTE- -- a

1. This SR is only required to be met when the applicable DG is connected to its load test resistor bank.

2. This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced. Credit may be taken for unplanned events that satisfy this SR.

Verify, with a DG operating in test mode and 24 months

-connected to its load test resistor bank, an actual or simulated ESF actuation signal overrides the test mode by:

a. Returning DG to ready-to-load operation; and

b. Verifying the emergency loads are serviced by offsite power.

SR 3.8.1.21 --------- NOTE --

This Surveillance shall not normally be performed in MODE 1, 2, 3, or 4. However, portions of the Surveillance may be performed to reestablish OPERABILITY provided an assessment determines the safety of the unit is maintained or enhanced.

Credit may be taken for unplanned events that satisfy this SR.

Verify, with a DG operating in test mode and 24 months connected to its bus, an actual or simulated ESF actuation signal overrides the test mode by:

a. Returning DG to ready-to-load operation; and

b. Verifying the emergency loads are serviced by offsite power.

Cook Nuclear Plant Unit 2 3.8.1-17 Amendment No. 249, 273)

AC Sources - Operating 3.8.1 SURVEILLANCE REQUIREMENTS (continued)

SURVEILLANCE FREQUENCY SR 3.8.1.22 =NOTE---

All DG starts may be preceded by an engine prelube period.

Verify when started simultaneously from standby 10 years condition, each DG achieves, in s 10 seconds, voltage 2 3740 V and frequency 2 58.8 Hz.

SR 3.8.1.23 ----- ----- NOT ES-

1. When Unit 1 is in MODE 5 or 6, or moving irradiated fuel assemblies in the containment or auxiliary building, the following Unit 1 SRs are not required to be performed: SR 3.8.1.3, SR 3.8.1.10, SR 3.8.1.11, SR 3.8.1.12, SR 3.8.1.15, SR 3.8.1.16, SR 3.8.1.17, and SR 3.8.1.18.

2. Unit 1 SR 3.8.1.9.a is only required to be met when the auxiliary source is supplying the required Unit 1 electrical power distribution subsystem.

For required Unit 1 AC sources, the SRs of Unit 1 In accordance Specification 3.8.1, except SR 3.8.1.9.b, with applicable SR 3.8.1.13, SR 3.8.1.14 (ESF actuation signal SRs portion only), SR 3.8.1.19, SR 3.8.1.20, SR 3.8.1.21, and SR 3.8.1.22, are applicable.

Cook Nuclear Plant Unit 2 3.8.1-18 Amendment No. 26, 273"

v t e Letter Sequence Approval
TAC:MC4525, (Approved, Closed) TAC:MC4526, (Approved, Closed)
Initiation Request, Request Acceptance... Administration Questions 18 January 2005 25 February 2005 Answers 18 March 2005 7 April 2005 6 May 2005 10 August 2005 Results Approval, Approval, Approval Other: ML052580284
MONTHYEAR2005-05-06 [Table View]

ML052730320

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