Text

Amends 5 to Licenses NPF-72 & NPF-75,approving Changes to Tech Specs That Modify Dc Sys to Address Operation of Dc Crosstie Between Units for Listed Situations
	ML20149D356
Person / Time
Site:	Braidwood
Issue date:	01/27/1988
From:	Muller D; Office of Nuclear Reactor Regulation
To:	; Commonwealth Edison Co
Shared Package
ML20149D359	List: ML20149D356; ML20149D378;
References
	NPF-72-A-005, NPF-75-A-005 NUDOCS 8802090468
	Download: ML20149D356 (16)
	v • d • e

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COMMONWEALTH EDIS0N COMPANY DOCKET N0. STN 50-456 BRAIDWOOD STATION, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 5 License No. NPF-72 1.

The Nuclear Regulatory Comission (the Comission) has found that:

A.

The application for amendment by Commonwealth Edison Company (the licensee) dated December 3, 1987, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission; C.

There is reasonable assurance (1) that the activities authorized by tnis amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be concucted in compliance with the Commission's regulations; D.

The issuance of this amendment will not be inimical to the comon i

cafense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Comission's regulations and all applicable requirements i

have been satisfied.

2.

Accordingly, the licensee is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-72 is hereby amended to read as follows:

(2) Technical Specifications The Technical Specifications contained in Appendix A as revised through Amendment No. 5 and the Environmental Protection Plan contained in Appendix B, both of which are attached hereto, are hereby incorporated into this license. The licensee shall operate the facility in accordance with the Technical Specifications and the Environnental Protection Plan.

880E090460 800127 DR ADOCK 05000456 p

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. 3.

This license arrendment is effective as of the date of its issuance.

FOR THE NUCLEAR REGULATORY C0WISSION m...

Daniel R. Muller, Director Project Directorate III-2 Division of Reactor Projects - Ill IV, V and Special Projects Attachtrent:

Changes to the Technical Specifications Date of Issuance: January 27, 1988 l

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UNITED STATES N

NUCLEAR REGULATORY COMMISSION

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WASHINGTON, D. C. 20555 4,

g COMMONWEALTH EDISON COMPANY DOCKET NO. STN 50-457 BRAIDWOOD STATION, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 5 License No. NPF-75 1.

The Nuclear Regulatory Comission (the Comission) has found that:

A.

The application for amendment by Comonwealth Edison Company (the licensee) dated December 3,1987, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Comission; C.

There is reasonable assurance (1) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations; 1

0.

The issuance of this amendment will not be inimical to the comon defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part

)

51 of the Comission's regulations and all applicable requirements have been satisfied.

2.

Accordingly, the licensee is amended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-75 is hereby amended to read as follows:

(2) Technical Specifications The Technical Spe.ifications contained in Appendix A as revised through Amendment No. 5 and the Environmental Protection Plan contained in Appendix B, both of which are attached hereto, are hereby incorporated into this license. The licensee shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

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3.

This license amendment is effective as of the date of its issuance.

FOR THE NUCLEAR REGULATORY COMMISSION Daniel R. Muller, Director Project Directorate III-2 Division of Reactor Projects - III IV. Y and Special Projects

Attachment:

Changes to the Technical Specifications Date of Issuance:

January 27, 1988

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ATTACHMENT TO LICENSE AMENDMENT N0. 5 FACILITY OPERATING LICENSE NO. NPF-72 DOCKET NO. STN-50-456 i

Revise Appendix A as follows:

Remove Pages Insert Pages 3/4 8-10 3/4 8-10 3/4 8-11 3/4 8-11 3/4 8-12*

3/4 8-12*

3/4 8-13 3/4 8-13 3/4 8-14*

3/4 8-14*

Overleaf pages added for convenience l

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ELECTRICAL POWER SYSTEMS 3/4.8.2 D.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.1 As a minimum the following D.C. electrical sources shall be OPERABLE:

l a.. ' 125-Volt D.C. Bus 111 fed from Battery 111 for Unit 1 (Bus 211 fed from Battery 211 for Unit 2), and its associated full capacity charger, and b.

125-Volt D.C. Bus 112 fed from Battery 112 for Unit 1 (Bus 212 fed from Battery 212 for Unit 2), and its associated full capacity charger.

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

a.

With one of the required battery banks and/or chargers inoperable, restore the inoperable batter / bank and/or battery bus to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months nr be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With the normal full capacity charger inoperable:

1) restore the affected battery and/or battery bus to operable status with the opposite units full capacity charger within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , and 2) restore the normal full capacity charger to operable status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

c.

Use of the D.C. crosstie breakers between opposite unit D.C. buses (bus 111 and 211, or bus 112 and 212) shall be limited to the following:

(1) With a normal full capacity charger inoperable, comply with actior, statement (b) above.

t (2) With a D.C. bus inoperable or not energized on a shutdown unit (Mode 5 or 6), the affected D.C. bus may be energized from the l

operating unit (Mode 1, 2, 3 or 4) opposite D.C. bus via the crosstie breakers af ter limiting the D.C. loads on the affected D.C. bus; operation may then continue for up to 7 days or open the crosstie breakers.

SURVEILLANCE REQUIREMENTS 4.8.2.1.1 Each D.C. bus shall be determined OPERABLE and energized from its bcttery at least once per 7 days by verifying correct breaker alignment.

4.8.2.1.2 Each 125-volt battery bank and its associated charger shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifying that:

1)

The parameters in Table 4.8-2 meet the Category A limits, and 2)

The total battery terminal voltage is greater than or equal to 126 volts on float charge, f

BRAIDWOOD - UNITS 1 & 2 3/4 8-10 AMENDMENT NO.

5

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) b.

At least once per 92 days and within 7 days af ter a battery discharge with battery terminal voltage below 110 volts, or battery overcharge with battery terminal voltage above 145 volts, by verifying tnat:

, 1)

The parameters in Tabl a.8-2 meet the Category B limits, 2)

There is no visible corrosion at either terminals or cor ectors, or the connection resistance of these items is less thar 150 x 10 6 ohm *, and 3)

The average electrolyte temperature of all connected cells is above 60 F.

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, tignt, and coated with anticorrosion material, 3)

The resistance of each cell-to-cell and terminal connection is less than or equal to 150 x 10 6 ohm *, and 4)

The battery charger will supply a load equal to the manuf acturer's rating for at least 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , d.

At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and maintain in OPERABLE status all of the actual or simulated emergency loads for 240 minutes i

when the battery is subject to a battery service test; At least once per 60 months, during shutdown, by verifying that the e.

battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.

This performance discharge test may be performed in lieu of the battery service test required by Specification 4.8.2.1.2d.;

f.

At least once per 18 months during shutdown, by giving performance discharge tests of battery capacity to any battery that shows signs of degradation or has reached 85% of the service life expected for j

the application.

Degradation is indicated when the battery capacity drops more than 10% of rated capacity from its average on previous performance tests, or is below 90% of the manufacturer's rating.

4.8.2.1.3 At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , when in specification 3.8.2.1.c.(2),

verify the total crosstie loading will not exceed 63 amps.

"0btainec by subtracting the normal resistance of:

1) the cross room rack connector (400 x 10 6 ohm, typical) and 2) the bi-level rack connector (50 x 10 6 ohm, typical); from the measured cell-to-cell connection resistance.

BRAIDWOOD - UNITS 1 & 2 3/4 8-11 AMENDMENT NO. 5

TABLE 4.8-2 BATTERY EURVEILLANCE REQUIREMENTS CATEGORY A(1)

CATEGORY B(2)

PARAMETE.R LIMITS FOR EACH LIMITS FOR EACH ALLOWABLE (3)

DESIGNATED PILOT CONNECTED CELL VALUE FOR EACH CELL CONNECTED CELL Electrolyte

> Minimum level

> Minimum level Above top of Level indication mark, indication mark,

plates, and < \\" above and < " above and not maxi 5um level maxiium level overflowing indication mark indication mark Float Voltage

> 2.13 volts

> 2.13 volts (6)

> 2.07 volts Not more than 0.020 below the

)

average of all Specific

> 1.195 connected cells Gravity (4)

> 1.200(5)

~

Average of all Average of all connected cells connected cells

> 1.205

> 1.195(5)

TABLE NOTATIONS (1) For any Category A parameter (s) outside the limit (s) showr., the battery 4

may be considered OPERABLE provided that within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months all the Category B measurements are taken and found to be within their allowable values, and provided all Category A and B parameter (s) are restored to within limits within the next 6 days.

(2) For any Category B parameter (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that the Category B parameters are within their allowable values and provided the Category B parameter (s) are restored to within limits within 7 days.

(3) Any Category B parameter not within its allowable value indicates an inoperable battery.

(4) Corrected for electrolyte temperature and level.

(5) Or battery charging current is less than 2 amps when on charge.

(6) Corrected for average electrolyte temperature.

BRAIDWOOD - UNITS 1 & 2 3/4 8-12

ELECTRICAL POWER SYSTEMS D.C. SOURCES SHUTDOWN LIMITING CONDITION FOR OPERAlION 3.8.2.2 As a minimum, one 125-volt D.C. bus fed from its battery and its assdciated full-capacity charger shall be OPERABLE.*

APPLICABILITY:

MODES 5 and 6.

ACTION:

With the required battery bank and/or full-capacity charger inoperable, imme-diately suspend all operations involving CORE ALTERATIONS, positive reactivity changes or movement of irradiated fuel; initiate corrective action to restore the required battery bank and full-capacity charger to OPERABLE status as soon as possible, and within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , depressurize and vent the Reactor Coolant System through at least a 2 square inch vent.

SURVEILLANCE REQUIREMENTS i

4.8.2.2 The above required 125-volt D.C. bus fed from its battery and its associated charger shall be demonstrated OPERABLE per Specifications 4.8.2.1.1 and 4.8.2.1.2.

l "Use of the D.C. crosstie breakers is covered in Technical Specification 3.8.2.1, Action Statement c.

BRAIDWOOD - UNITS 1 & 2 3/4 8-13 AMENDMENT NO.

5

ELECTRICAL POWER SYSTEMS 3/4.8.3 ONSITE POWER DISTRIBUTION OPERATING LIMITING CONDITION FOR OPERATION 3.8.3.1 The following electrical busses shall be energized in the specified manner fo.r the applicable unit:

, a.

A.C. ESF Busses consistirg of:

UNIT 1 UNIT 2 Division 11 Division 21 1) 4160-Volt Bus 141, 1) 4160-Volt Bus 241 2) 480-Volt Bus 131X.

2) 480-Volt Bus 231X.

b.

A.C. ESF Busses consistir.g of:

UNIT 1 UNIT 2 Division 12 Division 22 1) 4160-Volt Bus 142 1) 4160-Volt Bus 242 2) 480-Volt Bus 132X.

2) 480-Volt Bus 232X.

c.

120-Volt A.C. Instrument Bus 111 for Unit 1 (Bus 211 for Unit 2) energized from its associated inverter connected to D.C. Bus 111 for Unit 1 (Bus 211 for Unit 2),

d.

120-Volt A.C. Instrument Bus 113 for Unit 1 (Bus 213 for Unit 2) energized from its associated inverter connected to D.C. Bus 111 for Unit 1 (Bus 211 for Unit 2),

e.

120-Volt A.C. Instrutnent Bus 112 for Unit 1 (Bus 212 for Unit 2) energized from its associated inverter connected to D.C. Bus 112 for Unit 1 (Bus 212 for Unit 2), and f.

120-Volt A.C. Instrument Bus 114 for Unit 1 (Bus 214 for Unit 2) energized from its associated inverter connected to D.C. Bus 112 for Unit 1 (Bus 212 for Unit 2).

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

a.

With one of the required civisions of A.C. ESF busses not fully energized, reenergize the division within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least

)

HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With one A.C. instrument Dus either not energized from its associated inverter, or with the inverter not connected to its associated D.C.

bus:

1) reenergize the A.C. instrument bus within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least H0T STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in CDLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , and 2) reenergize the A.C. instrument bus from its associated inverter connected to its associated D.C. bus within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

BRAIDWOOD - UNITS 1 & 2 3/4 8-14

o ATTACliMENT TO LICENSE AMENDMENT N0. 5 FACILITY OPERATING LICENSE NO. NPF-75 DOCKET NO. STN-50-457 Revise Appendix A as follows:

Remove Pages Insert Pages 3/4 8-10 3/4 8-10 3/4 8-11 3/4 8-11 3/4 8-12*

3/4 8-12*

3/4 8-13 3/4 8-13 3/4 8-14*

3/4 8-14*

Overleaf pages added for convenience i

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ELECTRICAL POWER SYSTEMS 3/4.8.2 D.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.2.1 As a minimum the following D.C. electrical sources shall be OPERABLE:

l a.

125-Volt D.C. Bus 111 fed from Battery 111 for Unit 1 (Bus 211 fed from Battery 211 for Unit 2), and its associated full capacity charger, and b.

125-Volt D.C. Bus 112 fed from Battery 112 for Unit 1 (Bus 212 fed from Battery 212 for Unit 2), and its associated full capacity charger.

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

a.

With one of the required battery banks and/or chargers inoperable, restore the inoperable battery bank and/or battery bus to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With the normal full capacity charger inoperable:

1) restore the affected battery and/or battery bus to operable status with the opposite units full capacity charger within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , and 2) restore the normal full capacity charger to operable status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , c.

Use of the D.C. crosstie breakers between opposite unit D.C. buscs (bus 111 and 211, or bus 112 and 212) shall be limited to the following:

(1) With a normal full espacity charger inoperable, comply with action statement (b) above.

(2) With a D.C. bus inoperable or not e

rgized on a shutdown unit (Mode 5 or 6), the affected D.C. bu> may be energized from the i

operating unit (Mode 1, 2, 3 or 4) opposite D.C. bus via the crosstie breakers after limiting the D.C. loads on the affected D.C. bus; operation may then continue for up to 7 days or open the crosstie breakers.

SURVEILLANCE REQUIREMENTS 4.8.2.1.1 Each D.C. bus shall be determined OPERABLE and energized from its battery at least once per 7 days by verifying correct breaker alignment.

4.8.2.1.2 Each 125-volt battery bank and its associated charger shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifying that:

1)

The parameters in Table 4.8-2 meet the Category A limits, and 2)

The total battery terminal voltage is greater than or equal to 126 volts on float charge.

j BRAIDWOOD - UNITS 1 & 2 3/4 8-10 AMENDMENT NO.

5

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) b.

At least once per 92 days and within 7 days after a battery discharge with battery terminal voltage belcw 110 volts, or battery overcharge with Lattery terminal voltage above 145 volts, by verifying that:

1)

The parameters in Ta' ole 4.8-2 meet the Category B limits, 2)

There is no visible corrosion at either terminals or connectors, or the connection resistance of these items is less than 150 x 10 6 ohm *, and 3)

The average electrolyte temperature of all connected cells is above 60 F.

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, and coated with anticorrosion material, 3)

The resistance of each cell-to-cell and terminal connection is' less than or equal to 150 x 10 6 ohm *, and 4)

The battery charger will supply a load equal to the manufacturer's rating for at least 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

d.

At least once per 18 months, during shutdown, by verifying that the battery capacity is adequate to supply and naintain in OPERABLE i

status all of the actual or simulated emergency loads for 240 minutes when the battery is subject to a battery service test; 1

At least once per 60 months, during shutdown, by verifying that the e.

battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test.

This performance discharge test may be performed in lieu of the battery service test required by Specification 4.8.2.1.2d.;

f.

At least once per 18 months during shutdown, by giving performance discharge tests of battery capacity to any battery that shows signs 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 average on previous performance tests, or is below 90% of the manufacturer's rating.

4.8.2.1.3 At least once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months , when in specification 3.8.2.1.c.(2),

verify the total crosstie loading will not exceed 63 amps.

"Obtained by subtracting the nonnal resistance of:

1) the cross room rack connector (400 x 10 8 ohm, typical) and 2) the bi-level rack connector (50 x 10 8 ohm, typical); from the measured cell-to-cell connection resistance.

BRAIDWOOD - UNITS 1 & 2 3/4 8-11 AMENDMENT NO. 5

TABLE 4.8-2 BATTERY SURVEILLANCE REQUIREMENTS CATEGORY A(1)

CATEGORY B(2)

PARAMETER LIMITS FOR EACH LIMITS FOR EACH ALLOWABLE (3)

DESIGNATED PILOT CONNECTED CELL VALUE FOR EACH CELL CONNECTED CELL Electrolyta

> Minimum level

> Minimum level Above top of Level indication mark, indication mark,

plates, and < \\" above and < \\" above and not maxi 5um level maxiEum level overflowing indication mark indication mark Float Voli.cga

> 2.13 volts

> 2.13 volts (6)

> 2.07 volts Not more than 0.020 below the average of all Specific

> 1.195 connected cells Gravity (4) 1.200(5)

Average of all Average of all connected cells connected cells

> 1.205 1,195(5) 3 TABLE NOTATIONS (1) For any Category A parameter (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months all the Category 3 measurements are taken and found to be within their allowable values, and provided all Category A and B parameter (s) are restored to within limits within the next 6 days.

(2) For any Categcry B parameter (s) outside the limit (s) shown, the battery may be considered OPERABLE provided that the Category B parameters are within their allowable values and provided the Category B parameter (s) are restored to within limits within 7 days.

(3) Any Category B parameter not within its allowable value indicates an inoperable battery.

(4) Corrected for electrolyte temperature and level.

(5) Or battery charging current is less than 2 amps when on charge.

(6) Corrected for average electrolyte temperature.

BRAIDWOOD - UNITS 1 & 2 3/4 8-12

O ELECTRICAL POWER SYSTEMS 0.C. SOURCES SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.2.2 As a minimum, one 125-volt D.C. bus fed from its battery and its associated full-capacity charger shall be OPERABLE.*

I APPLICABILITY: MODES 5 and 6.

ACTION:

With the required battery bank and/or full-capacity charger inoperable, imme-diately suspend (11 operations involving CORE ALTERATIONS, positive reactivity changes or movement of irradiated fuel; initiate corrective action to restore the required battery bank and full-capacity charger to OPERABLE status as soon as possible, and within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months , depressurize and vent the Reactor Coolant System through at least a 2 square inch vent.

SURVEILLANCE REQUIREMENTS 4.8.2.2 The above required 125-volt D.C. bus fed from its battery and its associated charger shall be demonstrated OPERABLE per Specifications 4.8.2.1.1 and 4.8.2.1.2.

"Use of the D.C. crosstie breakers is covered in Technical Specification 3.8.2.1, Action Statement c.

BRAIDWOOD - UNITS 1 & 2 3/4 8-13 AMENDMENT NO.

5

ELECTRICAL POWER SYSTEMS 3/4.8.3 ONSITE POWER DISTRIBUTION OPERATING LIMITING CONDITION FOR OPERATION 3.8.3.1 The following electrical busses shall be energized in the specified manner for the applicable unit:

a.

A.C. ESF Busses consisting of:

UNIT 1 UNIT 2 Division 11 Division 21 1) 4160-Volt Bus 141, 1) 4160-Volt Bus 241 2) 480-Volt Bus 131X.

2) 480-Volt Bus 231X.

b.

A.C. ESF Busses consisting of:

UNIT 1 UNIT 2 Division 12 Division 22 1) 4160-Volt Bus 142 1) 4160-Volt Bus 242 2) 480-Volt Bus 132X.

2) 480-Volt Bus 232X.

120-Volt A.C. Instrument Bus 111 for Unit 1 (Bus 211 for Unit 2) c.

energized from its associated inverter connected to D.C. Bus 111 for Unit 1 (Bus 211 for Unit 2),

d.

120-Volt A.C. Instrument Bus 113 for Unit 1 (Bus 213 for Unit.2) energized from its associated inverter connected to 0.C. Bus 111 for Unit 1 (Bus 211 for Unit 2),

120-Volt A.C. Instrument Bus 112 for Unit 1 (Bus 212 for Unit 2) e.

energized from its associated inverter connected to D.C. Bus 112 for Unit 1 (Bus 212 for Unit 2), and f.

120-Volt A.C. Instrument Bus 114 for Unit 1 (Bus 214 for Unit 2) energized from its associated inverter connected to D.C. Bus 112 for Unit 1 (Bus 212 for Unit 2).

APPLICABILITY: MODES 1, 2, 3, and 4.

ACTION:

With one of the required divisions of A.C. ESF busses not fully a.

energized, reenergize the division within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With one A.C. instrument bus either not energized from its associated inverter, or with the inverter not connected to its associated D.C.

bus:

1) reenergize the A.C. instrument bus within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months , and 2) reenergize the A.C. instrument bus from its associated inverter connected to its associated D.C. bus within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

BRAIDWOOD - UNITS 1 & 2 3/4 8-14

ML20149D356

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