ML20207B735

Amends 5 to Licenses NPF-37 & NPF-60,revising Tech Specs to Increase Total Vol for Water Level in UHS Cooling Tower Basin & to Permit Crosstie Between Class IE 125-volt Dc Buses

ML20207B735
Person / Time
Site:	Byron
Issue date:	12/12/1986
From:	Varga S Office of Nuclear Reactor Regulation
To:	Commonwealth Edison Co
Shared Package
ML20207B741	List: ML20207B735 ML20207B745
References
NPF-37-A-005, NPF-60-A-005 NUDOCS 8612290052
Download: ML20207B735 (9)

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UNITED STATES t

NUCLEAR REGULATORY COMMISSION o

5 7 E WASHINGTON, D. C. 20555

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COMMONWEALTH EDISON COMPANY DOCKET NO. STN 50-454 BYRON STATION, UNIT I AMENDMENT TO FACILITY OPERATING LICENSE Amendrent No.5 License Nos. NPF-37 1.

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

A.

The applications for amendment by Commonwealth Edison Company (the licensee) dated August 13, 1986 and August 27, 1986 comply with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act) and the Ccmmission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the applications, the provisions of the Act, and the rules and regulations of the Commission; 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 Commission'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 issuance 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:

l 8612290052 861212 PDR ADOCK 05000454 p

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(2) Technical Specifications The Technical Specifications contained in Appendix A as revised through Amendment No. 5, and the Environment 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.

3.

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

FOR THE NU LEAR REGULATORY COMMISSION rector even g,

i PWR Project Direct ete #3 Division of PWR Lic r. sing-A, NRR

Attachment:

Changes to the Technical Specifications Date of Issuance: December 12, 1986

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~g UNITED STATES NUCLEAR REGULATORY COMMISSION o

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.E WASHING TON, D. C. 20555

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COMMONWEALTH EDISON COMPANY DOCKET NO. STN 50-455 BYRON STATION, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.5 License No. NPF-60 1.

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

A.

The applications for amendment by Comonwealth Edison Company (thelicensee)datedAugust 13, 1986 and August 27, 1986 comply 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 applications, the provisions of the Act, and the rules and regulations of the Comission; 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 Comission's regulations; D.

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 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-60 is hereby amended to read as follows:

j

(2) Technical Specifications and Environmental Protection Plan The Technical Specifications contained in Appendix A ('NUREG-1113),

as revised through Amendment No. 5, 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 revisions to Appendix A which 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 amendmtint is effective as of the date of its issuance.

FOR THE NUCLEAR REGULATORY COMMISSION e tor PWR Proiect Directo te #3 Division of PWR Li ensing-A, NRR

Attachment:

Changes to the Technical Specifications Date of Issuance:

December 12, 1986

ATTACHMENT TO LICENSE AMENDMENTS AMENDMENT NO. 5 FACILITY OPERATING LICENSE NOS. NPF-37 and NPF-60 DOCKET NOS. STN 50-454 AND STN 50-455 I

Revise Appendix A as fo11cws:

Remove Paaes Insert Pages 3/4 7-13 3/4 7-13 3/4 7-14 3/4 7-14 3/4 8-9a 3/4 8-10 3/4 8-10 3/4 8-11 3/4 8-11 3/4 8-11a 3/4 8-12 3/4 8-12*

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

6-Sa

• Overleaf pages added for convenience

PLANT SYSTEMS 3/4.7.5 ULTIMATE HEAT SINK LIMITING CONDITION FOR OPERATION 3.7.5 Two independent ultimate heat sinks (UHS) cooling towers shall be OPERABLE, each with A minimum water level in the UHS cooling tower basin of 873.75 feet a.

l Mean Sea Level (MSL) (50%),

l l

b.

With only Unit 1 operating, fans OA, 08, OE, and 0F are required to be OPERABLE.

With only Unit 2 operating, fans OC, OD, OG, and OH are required to be OPERABLE. With both Units 1 and 2 operating, 3 fans with power supplied from each unit are required to be OPERABli (total of 6 fans),

One OPERABLE essential service water makeup pump per train, c.

d.

An essential service water pump discharge temperature of less than or equal to 80 F with less than 4 fans running in high speed; or less than or equal to 98 F with all 4 fans running in high speed, A minimum Rock River water level at or above 670.6 feet MSL, USGS e.

datum, at the river screenhouse, and f.

Two OPERABLE deep wells with:

(1) Rock River water level forecast by National Weather Service to exceed 702.0 feet MSL, or (2) Rock River water level at or below 670.6 feet MSL, or (3) Tornado watch issued by National Weather Service that includes Byron site area.

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

With a water level of less than 873.75 feet MSL (50%) in either UHS l

a.

cooling tower basin, restore the water level to 873.75 feet MSL in each UHS cooling tower basin within 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> or be in HOT STANDBY with-in the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

l b.

With one of the fans contained in the applicable combination listed above inoperable, restore the listed fans to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

c.

With one essential service water makeup pump inoperable, restore the essential service water makeup pump to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

BYRON - UNITS 1 & 2 3/4 7-13 Amendment No. 5

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:

With one of the required battery banks and/or chargers inoperable, a.

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

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

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 4

following:

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

(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 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 l

battery at least once per 7 days by verifying correct breaker alignment.

l BYRON - UNITS 1 & 2 3/4 8-10 Amendment No.5

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)

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 <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />, when in specification 3.8.2.1.c.(2),

verify the total crosstie loading will not exceed 63 amps.

i BYRON - UNITS 1 & 2 3/4 8-11a Amendment No.5

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

l 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 haurs, 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.

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

BYRON - UNITS 1 & 2 3/4 8-13 Amendment No.5 l

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