Text

Proposed Tech Specs Reflecting Changes to Battery Surveillance Requirements
	ML17332A224
Person / Time
Site:	Cook
Issue date:	07/19/1994
From:	; INDIANA MICHIGAN POWER CO. (FORMERLY INDIANA & MICHIG
To:	;
Shared Package
ML17332A223	List: ML17332A222; ML17332A224;
References
	NUDOCS 9407250200
	Download: ML17332A224 (33)
	v • d • e

Attachment l to AEP:NRC:0896S Existing Technical Specifications for Donald C. Cook Nuclear Plant Units l and 2 Marked to Reflect Proposed Changes 9'407250200 940719 PDR ADQCK 05000315 p PDR

EL CTRICAL PO~ SYSTEMS SURVEILLANCE REQUIREMENTS Continued

2. The pilot cell specific gravity, corrected to 77 F, and full electrolyte level (fluid at'=the bottom of the maximum level indication mark), is greater than or equal to 1.200,

3. The pilot cell voltage is greater than or equal to 2.13.

volts, and .

The overall battery voltage is greater than or equal to 250 volts.

b. At least once per 92 days by verifying that:

1. The voltage of each connected cell is greater than or equal to 2.13 volts under float charge.

2. The specific gravity, corrected to 77 o F, and full electrolyte level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal to 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between the top of the 'minimum level indication mark and the bottom of the maximum level indication mark.

c. At least once per 18 months by verifying that:

1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration,

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material,

3. The battery charger will supply at least 140 amperes at greater than or equal to 250 volts for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

At least once per 18 months, perform a battery service test during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain i OPERABLE status the actual or simulated emergency loads for the The battery terminal voltage shall be maintained greate than or equal to 210 volts throughout this test.

design duty cycle which is based on the composite load profile. The composite load profile envelopes both the LOCA/LOOP and Station Blackout profiles and provides the basis for the times listed in Table 4.8-2. The battery charger will be disconnected throughout the tes~

COOK NUCLEAR PLANT - UNIT 1 3/4 8-13 AMENDMENT No. ggP,155

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

e. At least once per 60 months, perform a battery discharge test during shutdown (MODES 5 or 6), by verifying that the battery capacity is at least 80K of the manufacturer's rating.+This performance discharge test shall be performed in place of the battery service test.

. Refueling outage'ischarge tests be given to any battery that shows sign of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 90% of the manufacturer's rating~ 1 D. C COOK - UNIT 1 3/4 8-14 AMENDMENT NO. 225

TABLE 4.8"2 BATTERY EMERGENCY LOADS AB Batter Loads Minimum Time

1. Channel III static inverter 4 P'rs

2. Channel IY static inverter + phrs II con+ps l4 c.ircuj+s

3. P g'hrs

4. Feed pump turbine 1E oil pump 'hr

5. Control room emergency .lighting + g'hrs

6. Hain turbine backup oil pump ) P hrP'

7. Isolation valve control Phrs

~COB L d s

1.'hannel I static inverter +g hrs

2. Channel II static inverter + P'r's

3. BOP static inverter" + 3'hrs

4. Feed pump turbine 1W oil pump 1 hr

5. Generator seal oil pump +g hrs

6. Turbine emergency oil pump I 3'hrg

7. Isolation valves 'fg hrs

8. Annunciators 4P hrs

9. All control circuits 4g hrs power sources to the 'inverters shall be turned off at the start of the test and may be turned on at the end of the specified time interval. Inverters may be left in this operating mode for the duration of the discharge test; D. C. COOK " UNIT 1 3/4 8" 15 AMENDMENT NO. 125

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIRE~S Continued

3. The pilot cell voltage is greater than or equal to 2.13 volts, and

4. The overall battery voltage i.s greater than or equal to 250 volts.

b. At least once per 92 days by verifying that:

1. The voltage of each connected cell i.s greater than or equal to 2.13 volts under float charge.

2. The specific gravity, corrected to 77 0 F and full electzolyte level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal to 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between the top of the minimum level indi. cation mark and the bottom of the maximum level indi.cation mark.

c ~ At least once per 18 months by verifying that:

1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deteriorati.on.

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-cozrosi.on material.

3. The battery charger will supply at least 10 amperes at greater than or equal to 250 volts for at least 4 hours.

d. At least once per 18 months perform a battery service test, during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the times specified of Table 4.8-3 with the battery charger disconnected. The battery terminal voltage shall be maintained greater than or equal to 210 volts throughout the battery service test.

e. At least once per 60 months perform a battery discharge test, during shutdown (MODES 5 or 6), by verifying that the gattezy capacity is at least 80S of the manufacturer's rating~This performance discharge test shall be performed in place of the battery service test.

COOK NUCLEAR PLANT - UNIT 1 3/4 8-18 . AMENI)MENT..NO. 129.155 Refueling outage discharge tests shmhl~~

be given to any battery that shows sign of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 90% of the manufacturer's ratinL.

TABLE 4.8-3 BATTERY EMERGENCY LOADS "H" Batter Loads Minimum Time Auxiliary feedwater turbine control bus 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-211 valve y~hot rs FMO-221 valve p 4~($

FMO-231 valve $ p'4. rs FMO-241 valve + $ L>ur ~

TDTV valve g g~rs "Valves will be operated through the following sequence:

Beginning of test: open valves

2. Five minutes after the beginning ~

he test: close the valves.

r~4 Ten minutes after@0 eginning of the test: reopen the

~ ~

3.

val ves.

4. Four hou after the beginning of the test: close the valves.

End of the test.

D. C. COOK - UNIT 1 3/4 8-19 AMENDMENT NO. 125

3/4.8 ELECTRICAL POWER SYSTEMS BASES The OPERABILITY of the A.C. and D.C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident

'conditions within the facility. The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one of each of the onsite A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source.

The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the facility status.

The train N station battery system provides an independent 250 volt DC power supply for power and control of the turbine driven auxiliary feedwater pump train. The limiting conditions of operation for the train N battery are consistent with the requirements of the auxiliary feedwater system. The surveillance requirements for the train N battery system are consistent with the requirements of the AB and CD station batteries. The train N battery loads are derived from equipment in the turbine driven auxiliary feedwater pump train and battery .sizing is consistent with the functional requirements of these components. Simulated loads for battery tests are loads equivalent to measured actual loads.

~The AB and CD station battery systems provide a reliable source of continuous power for supply and control of plant loads such as switchgear 8 annunciator control circuits, static inverters, valve control centers, emergency lighting and motor control centers. The design duty cycles of these batteries are composite load profiles resulting from the combination of the three hour Loss Of Coolant Accident/Loss Of Offsite power battery load profiles and the four hour Station Blackout battery load profiles.~

D. C. COOK - UNIT 1 B 3/4 8-1 Amendment No. 86

ELECTRICAL POWER SYSTEM~

SURVEiLLANCE RE UIREhtENTS Continued

2. The pilot cell specific gravity, corrected to 77 F, and full electrolyte level (fluid at the bottom of the maximum level indication mark), is greater than or equal to 1.200,

3. The pilot cell voltage is greater than or equal to 2.13 volts, and

4. The overall battery voltage is greater than or equal to 250 volts.

b. At least once per 92 days by verifying that:

1. The voltage of each connected cell is greater than or equal to 2.13 volts under float charge.'.

The specific gravity, corrected to 77 F, and full electro'yte level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal to 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between rhe top of the minimum level indication mark and the bottom of the maximum level indication mark.

c. At least once per 18 months by verifying that:

1. The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration,

2. The cell-to-cell and terminal connections are clean, tight, free 'of corrosion and coated with anti.-corrosion material,

3. The battery charger will supply at least 140 amperes at greater than or equal to 250 volts for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

r At least once per 18 months, perform a battery service test during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the The battery terminal voltage shall be maintained greater than or equal to 210 volts throughout this test.

idestgn duly cycle which is based on

. the composite load profile. The composite load profiie envelopes both the LOCA/LOOP and Station Blackout profiles and provides the basis for the times listed in Table 4.8-2. The battery charger will be disconnected throughout the test .

COOK NUC~~ PLANT - UNIT 2 3/4 8-13 AM~MEZZ NO. f/),f39

~ Ei,ECTRICAL PO}yIER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

e. At least once per 60 months, perform a battery discharge test during shutdown (H0066 6 or 6), by verifying that the battery capacity is at least 80K of the manufacturer's rating. This performance discharge test shall be performed in place of the battery service test.

/Refueling outager discharge tests sbaaabtl~

be given to any bauery that sftovvs stgn of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 90% of the manufacturer's rating.~

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D. C COOK - UNIT 2 3/4 8-14 AMENDMENT NO. 112

TABLE 4.8"2 BATTERY EMERGENCY LOADS AB Batter Loads Minimum Time 1- Channel III static inverter rP'rs

2. Channel IV static inverter +g hrs All Go~I G'I rc 's+S

3. 4g hrs

4. Bop static inverter* +P'rs

5. Feed pump turbine 2E oil pump 1 hr

6. Control room emergency lighting +P'rs

7. Hain turbine emergency oil pump I P 'hrg..

.8. Isolation valve control +P hrs CD Batter Loads

1. Channel I static inverter Pg hr's

\

2. Channel II static inverter +g hrs

3. Feed pump turbine 2M oil pump 1 hr

4. Generator seal oil pump +tl hrs ss

5. 'ain turbine emergency oil pump t8 hrj

6. Isolation valves +8'rs

7. Annunciators +P hrs

8. All control circuits 4P hrs AC power sources to the inverters shall be turned off at the start of the test and may be turned on at the end of the specified time interval. Inverters may be left in this operating mode for the duration of the discharge test.

D. C. COOK - UNIT 2 3/4 8-15 AMENDMENT NO. 3J.2

EL""CTRICAL POWER SYSTEMS SURVEILLANCE UIRE2KNTS Continued

3. The pilot cell voltage is greater than or equal to 2.13 volts, and The overall battery voltage is greater thaxx or equal to 250 volts.

b. At least once per 92 days by verifying that:

1. The voltage of each connected cell is greater than or equal to 2.13 volts under float charge.

2. The specific gravity, corrected to 77 F and full electrolyte level (fluid at the bottom of zhe maximum level indication mark), of each connected cell is greater than or equal. to 1.200 and has not decreased mox'e than 0.03 fzom the value obsezved during the previous test, and

3. The electrolyte level of each connected cell i.s between tha top of the minimum level indication mark and the bottom of the maximum level indication mark.

C. At least once pex; 18 months by verifying that:

1. The cells, cell plates and battery racks show no visual indicati.on of physical damage or abnormal deteri.oration.

2. The cell-to-cell and terminal connecti,ons are clean, tight, free of corrosion and coated with anti.-corrosion material.

3. The battery charger will supply at least 10 ampexes at greatez'han oz equal to 250 volts for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

d. At least once per 18 months perform a battery service test, during shutdown (MODES 5 or 6), by verifying that tha battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the times specified of Table 4.8-3 with the battery charger disconnected. The battery terminal voltage shall be maincai.ned greater than or equal to 210 volts throughout the battery service test.

e. At least once per 60 months perform a batter'y discharge test during shutdown (MODES 5 or 6), by verifying that the attezy capacity is at least 80% of tha manufacturer's rating. This performance discharge test shall be performed in place of the battery service test.

COOK NUCLEAR PIANT - UNIT 2 3/4 8-18 AMENDMENT NO.. IT2,139

> Refueling outage~ discharge tests be given to any battery that shows sign of degradation or has reached 85% of the service life expected. for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 90% of the manufacturer's rating.~

TABLE 4. 8-3 BATTERY EMERGENCY LOADS "H" Batter Loads Minimum Time Auxiliary feedwater turbine control bus 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-211 valve 4. ~howrS' FMO-221 valve ~hi~(s FMO-231 valve P Mhuarf cf- ~ h o u! )f' FMO-241 valve TDTV va1 ve I ~bode "Val ves will be operated through the following sequence:

Beginning of test: open valves

2. Five minutes after the begi~in the test: close the val ves. ~pK'

3. Ten minutes after beginning of the test: reopen the valves.

4. Four urs after the beginning of the test: close the valves.

End of the test.

D. C. COOK " UNIT 2 3/4 8-19 AMENDMENT NO. ~2

3/4. 8 ELECTRICAL POWER SYSTEMS BASES The OPERABILITY of the A.C. and D.C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident conditions within the facility. The minimum specified independent and redundant A.C.'nd D.C. power sources and distribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR '50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source.

The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the facility status.

The train N station battery system provides an independent 250 volt DC power supply for power and control of the turbine driven auxiliary feedwater pump train. The limiting conditions of operation for the train N battery are consistent with the requirements of the auxiliary feedwater system. The surveillance requirements for the train N battery system are consistent with the requirements of the AB and CD station batteries. The train N battery loads are derived from equipment in the turbine driven auxiliary feedwater pump train and battery sizing is consistent with the functional requirements of these components. Simulated loads for battery tests are loads equivalent to measured actual loads.

~The AB and CD station battery systems provide a reliable source of continuous power for supply and control of plant loads such as switchgear 6 annunciator control circuits, static inverters, valve control centers, emergency lighting and motor control centers. The design duty cycles of these batteries are composite load profiles resulting from the combination of the three hour Loss Of Coolant Accident/Loss Of Offsite Power battery load profiles and the four hour Station Blackout; battery load profiles 9 D. C. COOK UNIT 2 B 3/4 8-1 Amendment No. 72

Attachment 2 to AEP:NRC:0896S Proposed Technical Specifications for Donald C. Cook Nuclear Plant Units 1 and 2

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued 2 ~ The pilot cell specific gravity, corrected to 77 0 F, and full electrolyte level (fluid at the bottom of the maximum level indication mark), is greater than or equal to 1.200,

3. The pilot cell voltage is greater than or equal to 2.13 volts, and

4. The overall battery voltage is greater than or equal to 250 volts.

b. At least once per 92 days by verifying that:

The voltage of each connected cell is greater than or equal to 2.13 volts under float gravity, corrected to 77 F, and full electrolyte charge.'he'pecific 0

2.

level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal'o 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between the top of the minimum level indication mark and the bottom of the maximum level indication mark.

C. At least once per 18 months by verifying that:

The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration,

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material,

3. The battery charger will supply at least 140 amperes at greater than or equal to 250 volts for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

At least once per 18 months, perform a battery service test during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the design duty cycle which is based on the composite load profile. The composite load profile envelopes both the LOCA/LOOP and Station Blackout profiles and provides the basis for the times listed in Table 4.8-2. The battery charger will be disconnected throughout the test. The battery terminal voltage shall be maintained greater than or equal to 210 volts throughout this test.

COOK NUCLEAR PLANT - UNIT 1 3/4 8-13 AMENDMENT NO. ARE, -455

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

e. At least once per 60 months, perform a battery service test during shutdown (MODES 5 or 6), by verifying that the battery capacity is at least 80$ of the manufacturer's rating. Refueling outage discharge tests shall be given to any battery that shows sign of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 908 of the manufacturer's rating. This performance discharge test shall be performed in place of the battery service test.

COOK NUCLEAR PLANT - UNIT 1 3/4 8-14 AMENDMENT NO.

TABLE 4 8-2 BATTERY EMERGENCY LOADS AB Bette Loads Minimum Time

1. Channel III static inverter 4 hrs

2. Channel IV static inverter 4 hrs

3. All control circuits 4 hrs

4. Feed pump turbine 1E oil pump 1 hr

5. Control room emergency lighting 4 hrs

6. Main turbine backup oil pump 1 hrs

7. Isolation valve control 4 hrs CD Bette Loads

1. Channel I static inverter 4 hrs

2. Channel II static inverter 4 hrs

3. BOP static inverter* 4 hrs

4. Feed pump turbine 1W oil pump 1 hr

5. Generator seal oil pump 4 hrs

6. Turbine emergency oil pump 1 hrs

7. Isolation valves 4 hrs

8. Annunciators 4 hrs

9. All control circuits 4 hrs

AC power sources to the inverters shall be turned off at the start of the test and may be turned on at the end of the specified time interval. Inverters may be left in this operating mode for the duration of the discharge test.

COOK NUCLEAR PLANT - UNIT 1 3/4 8-15 AMENDMENT NO.

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

3. The pilot cell voltage is greater than or equal to 2.13 volts, and

4. The overall battery voltage is greater than or equal to 250 volts.

b. At least once per 92 days by verifying that:

The voltage of each connected cell is greater than or equal to 2.13 volts under float charge.

The specific gravity, corrected to 77 F and full electrolyte 0

2 ~

level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal to 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between the top of the minimum level indication mark and the bottom of the maximum level indication mark.

c. At least once per 18 months by verifying that:

The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration,

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material.

3. The battery charger will supply at least 10 amperes at greater than or equal to 250 volts for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

d. At least once per 18 months perform a battery service test, during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the times specified of Table 4.8-3 with the battery charger disconnected. The battery terminal voltage shall be maintained greater than or equal to 210 volts throughout the battery service test,

e. At least once per 60 months perform a battery discharge test during shutdown (MODES 5 or 6), by verifying that the battery capacity is at least 80% of the manufacturer's rating. Refueling outage discharge tests shall be given to any battery that shows sign of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10$ of rated capacity from its capacity on the previous discharge test, or is below 90% of the manufacturer's rating. This performance discharge test shall be performed in place of the battery service test.

COOK NUCLEAR PLANT - UNIT 1 3/4 8-18 AMENDMENT NO.

TABLE 4.8-3 BATTERY EMERGENCY LOADS "N" Batte Loads Minimum Time Auxiliary feedwater turbine control bus 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-211 valve 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-221 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-231 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-241 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months TDTV 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months COOK NUCLEAR PLANT - UNIT 1 3/4 8-19 AMENDMENT N0.48$

3/4.8 ELECTRICAL POVER SYSTEMS BASES The OPERABILITY of the A.C. and D.C pow'er sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident conditions within the facility. The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one of each of the onsite A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source.

The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the facility status.

The AB and CD station battery systems provide a reliable source of continuous power for supply and control of plant loads such as switchgear and annunciator control circuits, static inverters, valve control centers, emergency lighting and motor control centers. The design duty cycles of these batteries are composite load profiles resulting from the combination of the three hour Loss Of Coolant Accident/Loss Of Offsite Power battery load profiles and the four hour Station Blackout battery load profiles.

The train N station battery system provides an independent 250 volt DC power supply for power and control of the turbine driven auxiliary feedwater pump train. The limiting conditions of operation for the train N battery are consistent with the requirements of the auxiliary feedwater syst'm. The surveillance requirements for the train N battery system are consistent with the requirements of the AB and CD station batteries. The train N battery loads are derived from equipment in the turbine driven auxiliary feedwater pump train and battery sizing is consistent with the functional requirements of these components. Simulated loads for battery tests are loads equivalent to measured actual loads.

COOK NUCLEAR PLANT - UNIT 1 B 3/4 8-1 AMENDMENT NO.

a ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

2. The pilot cell specific gravity, corrected to 77 0 F, and full electrolyte level (fluid at the bottom of the maximum level indication mark), is greater than or equal to 1.200,

3. The pilot cell voltage is greater than or equal to 2.13 volts, and

4. The overall battery voltage is greater than or equal to 250 volts.

b. At least once per 92 days by verifying that:

The voltage of each connected cell is greater than or equal to 2.13 volts under float charge.

2. The specific gravity, corrected to 77 0 F, and full electrolyte level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal to 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between the top of the minimum level indication mark and the bottom of the maximum level indication mark.

C. At least once per 18 months by verifying that:

The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material.

3. The battery charger will supply at least 140 amperes at greater than or equal to 250 volts for at least 4 hours.

d. At least once per 18 months, perform a battery service test during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the design duty cycle which is based on the composite load profile. The composite load profile envelops both the LOCA/LOOP and Station Blackout profiles and provides the basis for the times listed in Table 4.8-2. The battery charger will be disconnected throughout the test. The battery terminal voltage shall be maintained greater than or equal to 210 volts throughout this test.

COOK NUCLEAR PLANT - UNIT 2 3/4 8-13 AMENDMENT NO.

~ ~ Y ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREHENTS Continued

e. At least once per 60 months, perform a battery discharge test during shutdown (MODES 5 or 6), by verifying that the battery capacity is at least 808 of the manufacturer's rating. Refueling outage discharge tests shall be given to any battery that shows sign of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 90$ of the manufacturer's rating. This performance discharge test shall be performed in place of the battery service test.

COOK NUCLEAR PLANT - UNIT 2 3/4 8-14 AMENDMENT NO.~

TABLE 4 8-2 BATTERY EMERGENCY LOADS AB Batte Loads Minimum Time

1. Channel III static inverter 4 hrs

2. Channel IV static inverter 4 hrs

3. All control circuits 4 hrs

4. Bop static inverter* 4 hrs

5. Feed pump turbine 2E oil pump 1 hr

6. Control room emergency lighting 4 hrs

7. Main turbine emergency oil pump 1 hrs

8. Isolation valve control 4 hrs CD Batte Loads

1. Channel I static inverter 4 hrs

2. Channel II static inverter 4 hrs 3, Feed pump turbine 2W oil pump 1 hr 4 ~ Generator seal oil pump 4 hrs

5. Main turbine emergency oil pump 1 hrs

6. Isolation valves 4 hrs

7. Annunciators 4 hrs

8. All control circuits 4 hrs

AC power sources to the inverters shall be turned off at the start of the test and may be turned on at the end of the specified time interval. Inverters may be left in this operating mode for the duration of the discharge test.

COOK NUCLEAR PLANT - UNIT 2 3/4 8-15 AMENDMENT NO.

ELECTRICAL POWER SYSTEMS SURVEILLANCE RE UIREMENTS Continued

3. The pilot cell voltage is greater than or equal to 2.13 volts, and 4, The overall battery voltage is greater than or equal to 250 volts.

b. At least once per 92 days by verifying that; The voltage of each connected cell is greater than or equal to 2.13 volts under float charge.

2. The specific gravity, corrected to 77 0 F and full electrolyte level (fluid at the bottom of the maximum level indication mark), of each connected cell is greater than or equal to 1.200 and has not decreased more than 0.03 from the value observed during the previous test, and

3. The electrolyte level of each connected cell is between the top of the minimum level indication mark and the bottom of the maximum level indication mark.

c. At least once per 18 months by verifying that:

The cells, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration.

2. The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anti-corrosion material.

3. The battery charger will supply at least 10 amperes at greater than or equal to 250 volts for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

d. At least once per 18 months perform a battery service test, during shutdown (MODES 5 or 6), by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status the actual or simulated emergency loads for the times specified of Table 4.8-3 with the battery charger disconnected. The battery terminal voltage shall be maintained greater than or equal to 210 volts throughout the battery service test.

e. At least once per 60 months perform a battery discharge test during shutdown (MODES 5 or 6), by verifying that the battery capacity is at least 80$ of the manufacturer's rating. Refueling outage discharge tests shall be given to any battery that shows sign of degradation or has reached 85% of the service life expected for the application. Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its capacity on the previous discharge test, or is below 90% of the manufacturer's rating. This performance discharge test shall be performed in place of the battery service test.

COOK NUCLEAR PLANT - UNIT 2 3/4 8-18 AMENDMENT NO. 448,-439

TABLE 4 8-3 BATTERY EMERGENCY LOADS "N" Batte Loads Minimum Time Auxiliary feedwater turbine control bus 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-211 valve 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-221 valve 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-231 valve 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months FMO-241 valve 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months TDTV valve 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months COOK NUCLEAR PLANT - UNIT 2 3/4 8-19 AMENDMENT NO,~

3 4 8 ELECTRICAL POWER SYSTEMS BASES The OPERABILITY of the A.C. and D.C power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident conditions within the facility. The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C. source.

The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the facility status.

The AB and CD station battery systems provide a reliable source of continuous power for supply and control of plant loads such as switchgear and annunciator control circuits, static inverters, valve control centers, emergency lighting and motor control centers. The design duty cycles of these batteries are composite load profiles resulting from the combination of the three hour Loss Of Coolant Accident/Loss Of Offsite Power battery load profiles and the four hour Station Blackout battery load profiles.

The train N station battery system provides an independent 250 volt DC power supply for power and control of the turbine driven auxiliary feedwater pump train. The limiting conditions of operation for the train N battery are consistent with the requirements of the auxiliary feedwater system. The surveillance requirements for the train N battery system are consistent with the requirements of the AB and CD station batteries. The train N battery loads are derived from equipment in the turbine driven auxiliary feedwater pump train and battery sizing is consistent with the functional requirements of these components. Simulated loads for battery tests are loads equivalent to measured actual loads.

COOK NUCLEAR PLANT - UNIT 2 B 3/4 8-1 AMENDMENT NO.~

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ML17332A224

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