Text

Amends 93 & 93 to Licenses NPF-37 & NPF-66,respectively, Revising TS to Permit Installation & Use of C&D Charter Power Sys,Inc,Batteries
	ML20202E571
Person / Time
Site:	Byron
Issue date:	11/25/1997
From:	Dick G; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML20202E576	List: ML20202E571; ML20202E578;
References
	NPF-37-A-093, NPF-66-A-093 NUDOCS 9712080081
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NUCLEAR REGULATORY COMMISSION WASHINGTON. D.C. 30008 4 001

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QQMMONWEALTH EDISON COMPANY DOCKET NO. STN 50-454 BYRON STATION. UNIT NO.1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 93 License No. NPF 1.

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

A.-

The application for amendment by Commonwealth Edison Company (the licensee) dated April 7,1997, as supplemented by letter dated August 7,1997, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission'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 Commission; C.

There is reasonable assurance (i) 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 Co nmission's regulations; D.

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

E.

The ictuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

2.

Accordingly, the license 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-37 is hereby amended to read as follows:

9712080091 971125 PD;t ADOCK 05000454 P

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1 2-(2)

Technical Specifications The Technical Specifications contained in Appendix A as revised through Amendment No. 93 and the Environmental Protection Plan contained in Appendix B, both of which are shached hereto, are hereby incorporated into this license.

The licensee shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3.

This license amendment is effective as of the date of its issuance and shall be implemented within 30 days.

FOR THE NUCLEAR REGUI.ATORY COMMISSION llys.

George F. Dick, Senior Project Manager Project Directorate lil-2 Division of Reactor Pn>jects -lil/IV Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of issuance: November 25,1997 I

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Oo un%,t UNITED STATES -

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g-NUCLEAR REGULATORY COMMISSION WASHINGTON D.C. 3086H001

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COMMONWEALTH EDISON COMPANY DOCKET NO. STN 50 455 BYRON STATION. UNIT NO 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.93 Ucense No. NPF-66 1.

The Nuclear Regulatory Commission (the Commission) has found i.a.t:

A.

The application for amendment by Commonwealth Edison Company (the licensee) dated April 7,1997, as supplemented by letter dated August 7,1997, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Commission'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 Commission; C.

There is reasonable assurance (i) 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 Commission's regulatiora; D.

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

The issuarice of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

2.

Accordingly, the license is emended by changes to the Technical Specifications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating Ucense No. NPF 66 is hereby amenced to read as follows:

2 (2)

Technical Soecifications The Technical Specifications contained in Appendix A (NUREG-1113), as revised through Amendment No. 93 and revised by Attachment 2 to NPF-66, and the Environmental Protection Plan contained in Appendix B, both of which were attached to License No. NPF-37, dated February 14,1985, are hereby incorporated into this license. Attachment 2 contains a revision to Appendix A which is hereby incorporated into this license. The licensee shall operate the facility in accordance wHh the Technical Specifications and the Environmental Protection Plan.

3.

This license amendment is effective as of the date of its issuance and shall be implemented within 30 days.

FOR THE NUCLEAR REGULATORY COMMISSION

.ut j Georgt F. Dick, Senior Project Manager Project Directorate lil 2 Division of Reactor Projects -lil/lV Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of issuance: November 25,1997

ATTACHMENT TO LICENSE AMENDMENT NOS. 93 AND 93 i

FACILITY OPERATING UCENSE NOS. 9PF-37 AND NPF-66 DOCKET NOS. STN 50-454 AND STN 50-455 Revise the Appendix A Technical Specifications by removing the pages identified below and inserting the attached pages. The revised pages are identif ed by the captioned amendment numbet and entain marginallines indicating the are0 of change. Pages marked with an asterisk are provided for convenience only.

Remove Paoes Insert Paoes 3/4 8-10 3/4 8-10 3/4 8-11 3/4 8-11 3/4 811a 3/4 8-11a 3/4 8-12 3/4 8-12 3/4 8-12a 3/4813 3/4 8-13 3/4 8-14*

3/4 8-14*

B 3/4 8-2 B 3/4 8-2

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:

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 with one of its associated crosstie breakers in the open position, 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, and with one of its associated crosstie breakers in the open position.

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

ACTION:

a.

With one of the required 125-Volt D.C. buses inoperable due to its normal associated full capacity charger being inoperable, operations may continue provided that within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months the inoperable bus and its associated battery are energized by the opposite unit's 125-Volt D.C. bus and its OPERABLE charger via the crosstie breakers and that within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months the inoperable bus and its charger are restored to OPERABLE status. Otherwise 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 COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With both of the crosstie breakers closed for a 125-Volt D.C. bus that is required to be OPERABLE and with both units operating (Modes 1, 2, 3, or the 125-Volt D.C. bus may energize the opposite unit's inoperable 125-4)ltD.C.bushavinganinoperablechargerwithoutaloadrestriction.

Vo c.

With both of the crosstie breakers closed for a 125-Volt D.C. bus that is required to be OPERABLE and with the opposite unit shutdown (Modes 5, 6, or defueled), the crosstie breakers may remain closed for up to 7 days provided items 1 and 2 below are satisfied.

Otherwise open one of the crosstie breakers.

(1) The shutdown unit's bus load is restricted to:

Shutdown Unit Operating Unit Load httery Status Battery Tvoe Restriction Inoperable C&D 200 Amps l

Inoperable Gould 63 Amps OPEMBLE Either None (2)

If a load restriction applies then once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months verify that the shutdown unit's bus loading will not exceed the load restriction.

d.

With one of the required 125-Volt D.C. buses inoperable, except for the allowances of ACTIONS (a), (b), or (c) above, restore the inoperable 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 STAPDBY 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 .

SURVElllANCE RE0VIREMENTS 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.

l 1

BYRON - UNITS 1 & 2 3/4 8-10 AMENDMENT NO.93

ELECTRICAL POWER SYSTEMS

')

SURVEILLANCE REOUIREMENTS (Continued) 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 127.6 volts (C&D) 126 volts (Gould) on float charge.

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b.

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

1)

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

There is no visible corrosion at either terminals or connectors, orthecopnectionresistanceoftheseitemsislessthan 150 x 10' 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-pell and terminal connection is less than or equal to 150 x 10' 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 .

At least once per 18 months, during shutdown,intain in OPERABLEby verifying that the d.

battery capacity is adeguate to supply and ma status all of the actual or simulated emergency loads for the design duty cycle when the battery is subject to a battery service test;

0btained by subtract,ing the normal resistance of:and 2) the bi-lev)el rack connector 1

the cross room rack connector,(400 x 10' ohm, typical (50 x 10' ohm, typical); from the) measured cell-to-cell connection resistance.

BYRON - UNITS 1 & 2 3/4811 AMENDMENT NO. 93

l ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

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

batterycapacityisatleast80%ofthemanufacturer'sratingwhen l

subjected to a performance discharge test or a modified performance discharge test. The modified performance discharge test l

the performance discharge test (Gould) may be performed in(C&D) and lieu of the battery service test required by Specification 4.8.2.1.2d.;

f.

At least once per 12* months during shutdown by giving performance dischargetestsormodifiedperformancedischargetestsofbattery 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 capacity on the previous performance test or modified performance test, or is below 90% of the manufacturer's rating.

This requirement is applicable to Batteries 112, 211, and 212. This Unit 1, Cycle 9.pplicable to Battery 111 upon entering MODE 4 for requirement is a by giving performance At least once per 18 months during shutdown,harge tests of battery g.

dischar e tests or modified performance disc capacit 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 capacity on the previous performance test or modified erformance test or is below 90% of the manufacturer's ra ing. This regulrement is applicable to Battery 111 until entering MODE 4 for Unit 1, Cycle 9.

1f the battery has reached 85% of service life, delivers a capacity of 100% or greater of the manufacturer's rated capacity, and has shown no signs of degradation, performance testing at two-year intervals is acceptable until the battery shows signs of degradation.

BYRON - UNITS 1 & 2 3/4 8-11a AMENDMENT NO. 93

l TABLE ( 1-2 BATTERY SURVEILLANCE RE0UIREMENTS U

CATEGORY A )

CATEGORY B(')

PARAMETER 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 s %" above,

and s 4" above and not maximum level maximum level overflowing indication mark indication mark Float Voltage 2 2.13 volts 2 2.13 volts")

> 2.07 volts Not more than 0.020 below the average of all connected Specifih3 2 1.195 cells Gravity 2 1.200(5)

Average of all Average of all connected cells connected cells

> 1.205 2 1.195(5)

TABLE NOTATIONS maybeconsideredOPERABLEpr(ov)idedthatwithin24hoursallthethe battery For any Category A parameter s outside the limit (s) shown (1)

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 may be considered OPERABLE pr(ov)ided that the Category B parameters areoutsid (2)

For any C tegory B parameter s 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 for Gould.

Corrected for electrolyte temperature for C&D.

(5) Or battery charging current is less than 2 amps (Gould) 3 amps (C&D) when on charge.

(6) Corrected for average electrolyte temperature.

l BYRON - UNITS 1 & 2 3/4 8-12 AMENDMENT NO. 93

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 associatedfull-capacitychargerano~withoneofitsassociatedcrosstie breakers in the ope", position shall be OPERABLE.

APPLICABILITY: MODES 5 and 6.

ACTION:

a.

With both of the crosstie breakers closed for the 125-Volt D.C. bus that is required to be OPERABLE and with the opposite unit operating (Modes 1, 2 3 or 4D, the shutdown unit's operable 125-Volt D.C. bus may energize tbeo,perat9ngunit'sinoperable125-VoltD.C.bushavinganinoperable charger without a load restriction.

b.

With both of the crosstie breakers closed for the 125-Volt D.C. bus that is required to be OPERABLE and with both units shutdown (Modes 5, 6 or the125-Volt 0.C.busmayenergizetheoppositeunit'sIE5-Volt defueled)forupto7daysprovideditems1and2belowaresatisfied.

D.C. bus Otherwise open one of the crosstie breakers.

(1) The opposite unit's bus load is restricted to:

Opposite Unit Operable Bus Load Battery Status Battery Tvoe Restriction Inoperable C&D 200 Amps l

Ino)erable Gould 63 Amps I

OPERABLE Either None If a load restriction a then once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months verify that the opposite shutdown unit'ppliessbusloadingwillnotexceedtheload (2) restriction, except for the allowances With the re uired 125-Volt D.C. bus inoperable,d all operations involving c.

of ACTIONS a) or (b above, immediately suspen CORE ALTERA IONS, pos)itive reactivity additions, or movement of irradiated fuel; initiate corrective action to restore the required bus 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 RE0VIREMENTS 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.

BYRON - UNITS 1 & 2 3/4 8-13 AMENDMENT NO. 93

7 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 appifcable 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, and 2) 480-Volt Bus 231X, and 3)-

480-Volt Bus 131Z.

3) 480-Volt Bus 2312.

b.

A.C. ESF Busses consisting of:

UNIT 1 UNIT 2 l

Division 12 Division 22 1) 4160-Volt Bus 142 1) 4160-Volt Bus 242 2) 480-Volt Bus 132X, and 2) 480-Volt Bus 232X, and 3) 480-Volt Bus 1322.

3) 480-Volt Bus 2322.

c.

120-Volt A.C. Instrument Bus 111 for Unit 1 (Bus 21: for Unit 2) i 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 313 for Unit 1 (Bus 213 for Unit 2) t energized from its associated inverter connected to D.C. Bus 111 for Unit 1 (Bus 211 for Unit 2),

e.

120-Volt A.C. Instrument 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 i

Unit 1 (Bus 212 for Unit 2).

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

a.

With one of the required divisions 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 l

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 STAN0BY 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 .

l BYRON - UNITS 1 & 2 3/4 8-14 1

ELECTRIC POWER SYSTEMS l

BASES A.C. SOURCES. D.C. SOURCES. AND ONSITE POWER DISTRIBUTION (Continued)

The Surveillance Requirement for demonstrating the OPERABILITY of the station batteries is based on the recommendations of Regulatory Guide 1.129,

' Maintenance Testing and Replacement of Large Lead Storage Batteries for and IEEE Std 450-1980, "IEEE Recommended Nuclear Power Plants," February 1978,d Replacement of Large Lead Storage Practice for Maintenance, Stations,and Substations."

Testing an Batteries for Generating The modified >erformance discharge test is described in IEEE Std 450-1995, l

"!EEE Recommended >ractice for Maintenance Testin and Replacement of Vented Lead-Acid Batteries for Stationary Applicafions." git is permissible to perform a modified performance discharge test on the C&D battery in lieu of a service j

test and a performance discharge test as required by Regulatory Guide 1.129, Regulatory Position C.1, because the test discharge rate envelopes the load cycle of the service test.

Verification of the crosstie loading limits in Specifications 3.8.2.1 and 3.8.2.2 9nsures that the OPERABLE battery will have sufficient capacity to energize the design basis loads of its DC bus while maintaining the limited DC loads of the inoperable DC bus on a shutdown unit.

Verifying average electrolyte temperature above the minimum for which the battery was sized total battery terminal voltage on float charge, and the performanceofbalteryserviceanddischargetestsensurestheeffectiveness of the charging system, the ability to handle high discharge rates and compares the battery capacity at that time with the rated capacity.

The battery service test is a special test of battery ca ability, as-found, to satisfy the design requirement; (battery duty cycle of the D.C.

electrical power system.

The discharge rate and length of th battery service test corresponds to the design duty cycle requirements as specified in UFSAR Subsection 8.3.2.1.1.

Table 4.8-2 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and specific gravity. The limits for the designated pilot cells float voltage and specific gravity, greater than 2.13 volts and 0.015 below the manufacturer's full charge l

specific gravity or a battery charger current that had stabilized at a low value, is characteristic of a charged cell with adequate capacity.

The normal limits for each connected cell for float voltage and specific gravity, greater than 2.13 volts and not more than 0.020 below the manufacturer s full charge j

specific gravity with an average specific gravity of all the connected cells not more than 0.010 below the manufacturer s full charge specific gravity, ensures the OPERABILITY and capability of the battery.

Operation with a battery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8-2 is permitted for up to 7 days. During this 7-day period:

(1 the allowable values for electrolyte level ensures no physical damage to the) plates with an adequate electron of all the cells, y; (2) the allowable value for the average specific gravity transfer capabilit not more than 0.020 below the manufacturer's recommended full charge specific gravity, ensures that the decrease in rating will be less than the safety margin provided in sizing; (3) the allowable value for an individual cell's specific gravity, ensures that an individual cell's specific gravity will not be more than 0.040 below the manufacturer's full charge specific gravity and that the overall capability of the battery will be maintained the allowable value for an individual withinanacceptablelimit{and(4)2.07 volts,ensuresthebattery'scapability l

cell's float voltage, grea er than to perform its design function.

BYRON - UNITS 1 & 2 B 3/4 8-2 AMENDMENT NO. 93 1

ML20202E571

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