Text

Amends 183 & 160 to Licenses DPR-53 & DPR-69,respectively, Revising TS 3/4.8.2, Onsite Power Distribution Sys AC Power Distribution - Operating
	ML20059J025
Person / Time
Site:	Calvert Cliffs
Issue date:	10/29/1993
From:	Capra R; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML20059J029	List: ML20059J025; ML20059J034;
References
	NUDOCS 9311100323
	Download: ML20059J025 (28)
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UNITED STATES

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NUCLEAR REGULATORY COMMISSION g y.'g ]2 WASHfNGTON. D C. 20555-0001

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BALTIMORI GAS AND ELECTRIC COMPANY DOCKET NO. 50-317 CALVERT CLIFFS NUCLEAR POWER PLANT UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE l

Amendment No.183 License No. DPR-53 1.

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

A.

The application for amendment by Baltimore Gas and Electric Company (the licensee) dated April 1, 1993, as supplemented on July 22 and September 8, 1993, 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, t

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 common defense and security or to the health and safety of the public; and

_j 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. DPR-53 is hereby amended to read as follows:

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9311100323 931029 PDR ADOCK 05000317 P

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l l (2) Technical Specifications F

I The Technical Specifications contained in Appendices A and B, as l

l revised through Amendment No. 183, are hereby incorporated in the i

license. The licensee shall operate the facility in accordance with i

the Technical Specifications.

3.

This license amendment is effective as of the date of its issuance and i

shall be implemented within 30 days.

i FOR THE NUCLEAR REGULATORY COMMISSION

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{

. Robert A. Capra, Director l

Project Directorate I-l Division of Reactor Projects'.I/II Office of Nuclear Reactor Regulation

Attachment:

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Changes to the Technical i

Specifications 3

Date of Issuance:

October 29, 1993 j

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p BALTIM0RE GAS AND ELECTRIC COMPANY DOCKET NO. 50-318 CALVERT CLIFFS NUCLEAR POWER PLANT. UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.160 License No. DPR-69 1.

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

A.

The application for amendment by Baltimore Gas and Electric Company (the licensee) dated April 1,1993, as supplemented on July 22 and September 8, 1993, 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; 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 (i) that the activities authorized by this amendment can be conducted without endangering the health and i

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. DPR-69 is hereby amended to read as follows:

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(2) Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No.160, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.

l 3.

This license amendment is effective as of the date of its-issuance and

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shall be implemented within 30 days.

FOR THE NUCLEAR REGULATORY COMMISSION Original signed by:

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3 Robert A. Capra, Director Project Directorate I-I Division of Reactor Projects - I/II Office of Nuclear Reactor Regulation

Attachment:

l Changes to the Technical i

Specifications Date of Issuance: October 29, 1993 l

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ATTACHMENT TO LICENSE AMENDMENTS AMENDMENT NO. 183 FACILITY OPERATING LICENSE NO. OPR-53 AMENDMENT NO.160 FACILITY OPERATING LICENSE NO. DPR-69 DOCKET NOS. 50-317 AND 50-318 Revise Appendix A as follows:

Remove Pace Insert Pace VII VII 3/4 8-9 3/4 8-9 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*

3/4 8-15 3/4 8-15*

3/4 8-16 3/4 8-16*

3/4 8-17 3/4 8-17*

B 3/4 1-4 8 3/4 1-4**

B 3/4 1-5 8 3/4 1-5**

These pages are text rollover pages with no changes as the result of this amendment.

The amendment number appears at the bottom of the page to indicate a shift in text.

Unit 1 only.

Rollover pages with no changes from previous Amendment No. 182. The amendment number appears at the bottom of the page to indicate a shift in text.

TABLE OF CONTENTS LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.7.12 PENETRATION FIRE BARRIERS..............

3/4 7-48 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES Operating......................

3/4 8-1 Shutdown 3/4 8-6 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTENG A.C. Distribution - Operating............

3/4 8-9 A.C. Distribution - Shutdown 3/4 8-11 D.C. Distribution - Operating............

3/4 8-13 D.C. Distribution - Shutdown 3/4 8-17 3/4.9 REFUELING OPERATIONS 3/4.9.1 BORON CONCENTRATION.................

3/4 9-1 3/4.9.2 INSTRUMENTATION...................

3/4 9-2 3/4.9.3 DECAY TIME 3/4 9-3 3/4.9.4 CONTAINMENT PENETRATIONS 3/4 9-4 l

3/4.9.5 COM4UNICATIONS 3/4 9-6 3/4.9.6 REFUELING MACHINE OPERABILITY............

3/4 9-7 l

3/4.9.7 CRANE TRAVEL - SPENT FUEL STORAGE POOL BUILDING...

3/4 9-9 l

3/4.9.8 SHUTDOWN COOLING AND COOLANT CIRCULATION 3/4 9-10 3/4.9.9 CONTAINMENT PURGE VALVE ISOLATION SYSTEM 3/4 9-12 3/4.9.10 WATER LEVEL - REACTOR VESSEL t

3/4 9-13 3/4.9.11 SPENT FUEL POOL WATER LEVEL............. 3/4 9-14 3/4.9.12 SPENT FUEL POOL VENTILATION SYSTEM 3/4 9-15 CALVERT CLIFFS - UNIT 1 VII Amendment No. 183

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution - Operatino LIMITING CONDITION FOR OPERATION 3.8.2.1 The following A.C. electrical busses shall be OPERABLE and energized from sources of power other than the diesel generators with tie breakers open between redundant busses:

4160 volt Emergency Bus fil 4160 volt Emergency Bus #14 480 volt Emergency Bus illa 480 volt Emergency Bus #11B 480 volt Emergency Bus #14A 480 volt Emergency Bus #140 480 volt Motor Control Center fl04R 480 volt Motor control Center #114R 120 volt A.C. Vital Bus #11 energized from its associated inverter 120 volt A.C. Vital Bus #12 energized from its associated inverter 120 volt A.C. Vital Bus #13 energized from its associated inverter 120 volt A.C. Vital Bus #14 energized from its associated inverter APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

1 a.

With less than the above complement of 4160- and 480-volt A.C.

busses 0PERABLE, restore the inoperable bus to 0PERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least NOT 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 .

l CALVERT CLIFFS - UNIT.1 3/4 8-9

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Amendment No. 183 r

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3/4.8 ELECTRICAL POWER SYSTEMS j

LIMITING CONDITION FOR OPERATION (Continued) b.

With less than the above complement of 120-volt A.C. vital busses OPERABLE, either:

1.

Restore the de-energized vital bus to OPERABLE status by re-energizing the vital bus from its associated inverter i

within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least NOT STANDBY within the next i

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 ; OR 2.

Power the vital bus from the associated backup bus within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . Restore the vital bus to 0PERABLE status by re-energizing the vital bus from its associated inverter within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least NOT 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 .

SURVEILLANCE REQUIRENENTS 4.8.2.1 The specified A.C. busses shall be determined OPERABLE and energized from A.C. sources other than the diesel generators with tie breakers open between redundant busses at least once per 7 days by verifying correct breaker alignment and indicated power availability.

i CALVERT CLIFFS - UNIT.1 3/4 8-10 Amendment No. 183 f

1 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution - Shutdown LINITING CONDITION FOR OPERATION 3.8.2.2 As a minimum, the following A.C. electrical busses shall be OPERABLE and energized from sources of power other than a diesel generator but aligned to an 0PERABLE diesel generator:

1 4160 volt Emergency Bus 1

480 volt Dnergency Bus 1

2 120 volt A.C. Vital Busses APPLICABILITY: MODES 5 and 6.

4 ACTION:

a.

With less than the above complement of A.C. busses OPERABLE and energized for reasons other than the performance of Surveillance Requirement 4.8.1.1.2.d.1 on No. 12 diesel generator:

1.

Immediately* suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel and movement of heavy loads over irradiated fuel, until the minimum required A.C. busses are restored to l

OPERABLE and energized status, and i

2.

Immediately initiate corrective actions to restore the minimum A.C. electrical busses to 0PERABLE and energized status, and 4

3.

Establish containment penetration closure as identified in Specification 3.9.4 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

Performance of ACTION a. shall not preclude completion of actions to establish a safe conservative position.

CALVERT CLIFFS - UNIT 1 3/4 8-11 Amendment No. 183 l

3/4.8 ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION (Continued) b.

With less than the above minimum required A.C. electrical power sources 0PERABLE for the perfomance of Surveillance Requirement 4.8.1.1.2.d.1 on No.12 emergency diesel generator:"

1.

Verify either two 500 kV offsite power circuits or a 500 kV offsite power circuit and the 69 kV SMECO offsite power i

circuit are available and capable of being used. This 1

availability shall be verified prior to removing the OPERABLE emergency diesel generators and once per shift thereafter, 2.

Suspend all operations involving C0RE ALTERATIONS. positive reactivity changes, movement of irradiated fuel and movement of heavy loads over irradiated fuel, 3.

Have established containment penetration closure as identified in Specification 3.9.4, 4.

An emergency diesel generator shall be OPERABLE and aligned to provide power to the emergency busses within seven days.

5.

Within two weeks prior to the planned unavailability of an i

0PERABLE emergency diesel generator, a temporary diesel i

generator shall be demonstrated available.

6.

A temporary diesel generator shall be demonstrated available by starting it at least once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

1 7.

If ACTIONS b) I through b) 6 are not met, restore compliance with the ACTIONS within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or restore an OPERABLE emergency diesel generator within the next 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

SURVEILLANCE REQUIREMENTS 4.8.2.2 The specified A.C. busses shall be detemined OPERABLE and energized from A.C. sources other than the diesel generators at least once per 7 days by verifying correct breaker alignment and indicated power i

availability.

4 The provisions of ACTION b. are no longer applicable following the installation of two additional emergency diesel generators.

CALVERT CLIFFS - UNIT.1 3/4 8-12 Amendment No. 183

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3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS D.C. Distribution - ODeratinQ j

i LIMITIM COMITION FOR OPERATION 3.8.2.3 The following D.C. bus trains shall be energized and OPERABLE:

a.

125-volt D.C. bus No. II, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full capacity charger.

b.

125-volt D.C. bus No.12, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full capacity charger.

c.

125-volt D.C. bus No. 21, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated. full capacity charger.

d.

125-volt D.C. bus No. 22 the associated 125-volt D.C. battery j

bank or as necessary the Reserve Battery, and one associated full capacity charger.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a.

With one 125-volt bus inoperable, 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 NOT STAiiDBY l

within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD S M TDOWN within the following_

30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With one 125-volt D.C. battery inoperable and the associated 125-volt D.C. bus not being supplied by the Reserve Battery except during surveillance testing per l

Specification 4.8.2.3.2.d.1:

1.

Restore the inoperable battery to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or replace the inoperable battery with the OPERABLE Reserve Battery within the next 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or l

2.

Be in at least NOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SMTDOW within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

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CALVERT CLIFFS - UNIT 1,

3/4 8-13 Amendment No. 183 l

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3/4.8 ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION (Continued) c.

With both 125-volt battery chargers from fhe same D.C. bus inoperable:

1.

Except when necessary during surveillance testing per Specification 4.8.2.3.2.d.1, restore at least one 125-volt D.C. battery charger to 0PERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least NOT 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 .

2.

During surveillance testing per Specification 4.8.2.3.2.d.1, restore at least one 125-volt D.C. battery charger to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or be in at least H0T STANDBY within 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 .

d.

With single cells having a voltage decrease of more than 0.10 volts from the previous perfomance discharge test (4.8.2.3.2.f) value, but still 12.10 volts per Surveillance Requirement 4.8.2.3.2.b.1, either restore / replace cells or replace the affected battery with the Reserve Battery within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in NOT 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 .

SURVEILLANCE REQUIREMENTS 4.8.2.3.1 Each D.C. bus train shall be detemined 0PERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

4.8.2.3.2 Each 125-volt battery bank and charger and the Reserve Battery shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifying that:

1.

The electrolyte level of each pilot cell is between the minimum and maximum level indication marks.

2.

The pilot cell specific gravity, corrected to 77 F and full electrolyte level is 21.200.

l CALVERT CLIFFS - UNIT 1 3/4 8-14 Amendment No. 183

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3/4.8 ELECTRICAL POWER SYSTDtS SURVEILLANCE REQUIREMENTS (Continued) l 3.

The pilot cell voltage is 12.10 volts.

j 4.

The overall battery voltage is 1125 volts.

b.

At least once per 92 days by verifying that:

l 1.

The voltage of each connected cell is 1 2.10 volts under float charge and has not decreased more than 0.10 volts from the value observed during the latest perfomance discharge test (4.8.2.3.2.f).

2.

The specific gravity, corrected to 77 F and full electrolyte level, of each connected cell is > 1.200 and has not decreased more than 0.02 from the value observed during the previous test.

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3.

The electrolyte level of each connected cell is between the j

minimum and maximum level indication marks.

t c.

At least once per 18 months by verifying that:

1 1.

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

i 2.

The cell-to-cell and teminal connections are clean, tight, and coated with anti-corrosion material.

l d.

At least once per 18 months by verifying that the battery I

capacity, with the charger disconnected, is adequate to either:

1.

Supply and maintain in OPERABLE status all of the actual emergency loads for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months when the battery is subjected to a battery service test. At the completion of this test, surveillance 4.8.2.3.2.e shall be performed for the affected battery. The battery shall be charged to at least 95% capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , or 2.

Supply a dumy load simulating the emergency loads of the design duty cycle for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months while maintaining the battery teminal voltage 1105 volts. At the completion of this test, the battery Aall be charged to at least 95%

capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , excluding the stabilization time.

The emergency loads of the design duty cycle shall be-il CALVERT CLIFFS - UNIT.1 3/4 8-15 Amendment No. 183 l

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3/4.8 ELECTRICAL POWER SYSTEMS SURVEILUUICE REQUIREMENTS (Continued) documented and updated, as appropriate, in the system i

description contained in FSAR Chapter 8, and updated in i

accordance with 10 CFR 50.71(e).

At least once per 18 months, the battery charger" shall be e.

demonstrated capable of recharging the battery at a rate of

< 400 amperes while supplying normal D.C. loads or equivalent or greater dummy load.

f.

At least once per 60 months by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a perforwance discharge test. This performance discharge test shall be performed subsequent to the satisfactory completion of the required battery service test.

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e Not applicable to the charger associated with the Reserve Battery.

CALVERT CLIFFS - UNIT 1 3/4 8-16 Amendment No. 183-en..

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3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS D.C. Distribution - Shutdown LIMITING CONDITION FOR OPERATION 3.8.2.4 As a minimum, the following D.C. electrical equipment and busses shall be energized and OPERABLE:

125-volt D.C. busses, and 2

125-volt battery banks, one of which may be the Reserve 2

Battery, and one associated charger per bank supplying the above D.C. busses.

APPLICABILITY: MODES 5 and 6.

ACTION: With less than the above complement of D.C. equipment and busses OPERABLE:

l Immediately* suspend all operations involving CORE ALTERATIONS, a.

positive reactivity changes, movement of irradiated fuel, and movement of heavy loads over irradiated fuel until the minimum i

required D.C. equipment and busses are restored to OPERABLE status, and i

b.

Imediately initiate corrective actions to restore the minimum D.C. equipment and busses to OPERABLE status, and c.

Establish containment penetration closure as identified in Specification 3.9.4 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

SURVEILLANCE REQUIREMENTS 4.8.2.4.1 The above required 125-volt D.C. busses shall be detemined OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

4.8.2.4.2 The above required 125-volt battery banks and chargers shall be

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demonstrated OPERABLE per Surveillance Requirement 4.8.2.3.2.

Performance of ACTION a. shall not preclude completion of actions to

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establish a safe conservative position.

CALVERT CLIFFS - UNIT 1 3/4 8-17 Amendment No. 183 l

3/4.1 REACTIVITY CONTROL SYSTEMS BASES withdrawn to less than 129 inches even if it is within 7.5 inches of all other CEAs in its group. For the purposes of the Technical Specifications, a dual assembly, connected to a single CEA drive mechanism, is considered

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to be a single CEA (e.g., dual shutdown CEAs connected to a single drive 4

mechanism).

The ACTION statements applicable to an untrippable CEA and to a large misalignment (t 15 inches) of two or more CEAs, require a prompt shutdown of the reactor since either of these conditions may be indicative of a possible loss of mechanical functional capability of the CEAs and in the event of an untrippable CEA, the loss of SHUTDOWN MARGIN. A CEA is considered untrippable when it is known that the CEA would not be insertable in response to a Reactor Protection System signal or is known to be immovable due to excessive friction or mechanical interference.

For small misalignments (< 15 inches) of Me CEAs, there is 1) a small degradation in the peaking factors relative to those assumed in generating LCOs and LSSS setpoints for DNBR and linear heat rate, 2) a small effect on the time dependent long term power distributions relative to those used in generating LCOs and LSSS setpoints for DNBR and linear heat rate, 3) a small effect on the available SHUTDOWN MARGIN, and 4) a small effect on the ejected CEA worth used in the safety analysis.

Therefore, the ACTION statement associated with the small misalignment of a CEA pemits a one hour time interval during which attempts may be made to restore the CEA(s) to within their alignment requirements prior to initiating a reduction in THERMAL POWER. The one hour time limit is sufficient to (1) identify causes of a misaligned CEA, (2) take appropriate corrective action to realign the CEAs and (3) minimize the effects of xenon redistribution.

Overpower margin is provided to protect the core in the event of a large misalignment (t 15 inches) of a single regulating or shutdown CEA.

However, this misalignment would cause distortion of the core power distribution. The Reactor Protective System would not detect the degradation in radial peaking factors and since variations in other system parameters (e.g., pressure and coolant temperature) may not be sufficient to cause trips, it is possible that the reactor could be operating with process variables less conservative than those assumed in generating LCO and LSSS setpoints. The ACTION statement associated with a large CEA misalignment requires prompt action to realign the CEA to avoid excessive margin degradation.

If the CEA is not realigned within the given time constraints, ACTION is specified which will preserve margin, including reductions in THERMAL POWER.

For a single CEA misalignment, the time allowance to realign the CEA (Figure 3.1.3-1 or as determined by BASSS) is permitted for the following reasons:

1.

The margin calculations which support the power distribution LCOs for DNBR are based on a steady-state F{ as specified in Technical Specification 3.2.3.

CALVERT CLIFFS - UNIT,1 B 3/4 1-4 Amendment No. 182

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,easurement hN not d and no e

a pre-misaligned value of 1.70 is assume If an P, 4

realignment is pemitted.

the time limit of ined by BASSS is reached The requirement to reduce power level after Figure 3.1.3-1 or after the time limit detemA power re that can occur due to xenonBelow er.

offsets the continuing increase in P, 50% power there is sufficient conservatismitional. xenon redistribution redistribution.

LCOs to completely offset any, or any add ligned or inoperable CEAs include effects.

in a given group with thebrings the The ACTION statements applicable to misaConfomance t

requirements to align the OPERABLE CEAs However, extended core, within a short period of time, to a inoperable CEA.

SS setpoints.t d in the core may lead to that assumed in generating LCO and LSoperation with CE

) peaking f actors, and 3) availablethe conditions perturbations in 1) local burnup. 2 h

i ts detemination.ation with inoperable CEAs SHUTDOWN MARGIN which are more adverse t an in the safety analyses and LCO and LSSS setpo n Therefore, time limits have been imposed on oper from developing.

to preclude such adverse conditions ntrol of CEAs; Off. Manual The Manual There are five different operating modes for co l and Automatic.lating CEAs and the Automatic Individual. Manual Group. Manual SequentiaSequentia mode is disabled and not used for bot is required to detemine CEA ith the CEA alignment and OPERABILITY of the CEA position indicators tion of the rod block circuit.

positions and thereby ensure compliance w ide an additional independent insertion limits and ensures proper opera hen the CEAs are at either their The CEA " Full In" and " Full Out" limits prov Therefore, the OPERABILITY means for detemining the CEA positions wfully inserted or inoperable CEA position indicators itions of CEAs with inoperable and the ACTION statements applicable to In" or " Full Out" limits.

pemit continued operations when posindicators can be verified ition indicators are required e per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months with more frequent CEA positions and OPERABILITY of the CEA pos nitoring channel is inoperable.

to be verified on a nominal basis of onc for assuring that the verifications required if an automatic moThese verification t

h applicable LCOs are satisfied.

Amendment No. 182 l

B 3/4 1-5 CALVERT CLIFFS UNIT 1

I

~

3/4.1 REACTIVITY CONTROL SYSTEMS l

l BASES 2.

When the actual P, is less than the Technical Specification i

value, additional margin exists.

h 3.

This additional margin can be credited to offset the increase in P, with time that will occur following a CEA misalignment due to xenon redistribution.

4.

If an P, measurement has not been taken recently (within 5 days),

a pre-misaligned value of 1.70 is assumed and no time for realignment is pemitted.

The requirement to reduce power level after the time limit of l

Figure 3.1.3-1 or after the time limit determined by BASSS is reached offsets the continuing increase in P, that can occur due to xenon redistribution. A power reduction is not required below 50% power. Below 50% power there is sufficient conservatism in the DNB power distribution LCOs to completely offset any, or any additional, xenon redistribution l

effects.

l The ACTION statements applicable to misaligned or inoperable CEAs include requirements to align the OPERABLE CEAs in a given group with the l

inoperable CEA. Conformance with these alignment requirements brings the core, within a short period of time, to a configuration consistent with that assumed in generating LCO and LSSS setpoints. However, extended operation with CEAs significantly inserted in the core may lead to perturbations in 1) local burnup, 2) peaking factors, and 3) available SHUTDOWN MARGIN which are more adverse than the conditions assumed to exist in the safety analyses and LCO and LSSS setpoints detemination.

Therefore, time limits have been imposed on operation with inoperable CEAs to preclude such adverse conditions from developing.

There are five different operating modes for control of CEAs; Off, Manual Individual, Manual Group, Manual Sequential and Automatic. The Manual Sequential mode is applicable to only the regulating CEAs and the Automatic mode is disabled and not used for both regulating and shutdown CEAs.

OPERABILITY of the CEA position indicators is required to detemine CEA positions and thereby ensure compliance with the CEA alignment and insertion limits and ensures proper operation of the rod block circuit.

The CEA ' Full In" and " Full Out" limits provide an additional independent means for determining the CEA positions when the CEAs are at either their fully inserted or fully withdrawn positions. Therefore, the OPERABILITY j

and the ACTION statements applicable to inoperable CEA position indicators permit continued operations when positions of CEAs with inoperable indicators can be verified by the " Full In" or " Full Out" limits.

CEA positions and OPERABILITY of the CEA position indicators are required to be verified on a nominal basis of once per 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months with more frequent verifications required if an automatic monitoring channel is inoperable.

These verification frequencies are adequate for assuring that the 1

applicable LCOs are satisfied.

CALVERT CLIFFS - UNIT 1 B 3/4 1-5 Amendment No. 182 l

l i

TABLE OF CONTENTS 1

LIMITING CONDITIONS FOR OPERATION AND SURVEILLANCE REQUIREMENTS SECTION PAGE 3/4.7.12 PENETRATION FIRE BARRIERS.............

3/4 7-48 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES Operating.....................

3/4 8-1 1

Shutdown 3/4 8-6 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution - Operating...........

3/4 8-9 A.C. Distribution - Shutdown 3/4 8-11 1

D.C. Distribution - Operating...........

3/4 8-13 D.C. Distribution - Shutdown 3/4 8-17 3/4.9 REFUELING OPERATIONS l

3/4.9.1 BORON CONCENTRATION................

3/4 9-1 l

3/4.9.2 INSTRUMENTATION..................

3/4 9-2

)

3/4.9.3 DECAY TIME 3/4 9-3 3/4.9.4 CONTAINMENT PENETRATIONS 3/4 9-4 3/4.9.5 COP 94UNICATIONS 3/4 9-6 3/4.9.6 REFUELING MACHINE OPERABILITY...........

3/4 9-7 3/4.9.7 CRANE TRAVEL - SPENT FUEL STORAGE POOL BUILDING..

3/4 9-9 3/4.9.8 SHUTDOWN COOLING AND COOLANT CIRCULATION 3/4 9-10 3/4.9.9 CONTAINMENT PURGE VALVE ISOLATION SYSTEM 3/4 9-12 l

3/4.9.10 WATER LEVEL - REACTOR VESSEL 3/4 9-13 3/4.9.11 SPENT FUEL POOL WATER LEVEL............

3/4 9-14 3/4.9.12 SPENT FUEL POOL YENTILATION SYSTEM 3/4 9-15 CALVERT CLIFFS - UNIT.2 VII Amendment No. 160

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution - Operatino LIMITINS CONDITION FOR OPERATION 3.8.2.1 The following A.C. electrical busses shall be OPERABLE and energized from sources of power other than the diesel generators with tie breakers open between redundant busses:

4160 volt Emergency Bus #21 4160 volt Emergency Bus #24 j

480 volt Emergency Bus #21A 480 volt Emergency Bus #218 480 volt Emergency Bus #24A j

480 volt Emergency Bus #24B i

480 volt Motor Control Center #204R 480 volt Motor Control Center #214R 120 volt A.C. Vital Bus #21 energized from its associated inverter 120 volt A.C. Vital Bus #22 energized from its associated inverter 120 volt A.C. Vital Bus #23 energized from its associated inverter 120 volt A.C. Vital Bus #24 energized from its associated inverter APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a.

With less than the above complement of 4160- and 480-volt A.C.

busses OPERABLE, restore the inoperable bus to OPERABLE status within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least NOT 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 .

CALVERT CLIFFS - UNIT.2 3/4 8-9 Amendment No. 160

i t

l 3/4.8 ELECTRICAL POWER SYSTEMS i

l IIMITING CONDITION FOR OPERATION (Continued) b.

With less than the above complement of 120-volt A.C. vital busses 0PERABLE, either:

1.

Restore the de-energized vital bus to OPERABLE status by re-energizing the vital bus from its associated inverter within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least NOT STANDBY within the next i

6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD $NUTDOW within the following 30 hour3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months s-t j

OR I

2.

Power the vital bus from the associated backup bus within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months . Restore the vital bus to OPERABLE status by re-energizing the vital bus from its associated inverter-within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least NOT STANDBY within the next i

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

j SURVEILUUICE REQUIREMENTS i

4.8.2.1 The specified A.C. busses shall be detennined OPERABLE and energized from A.C. sources other than the diesel generators with tie breakers open between redundant busses at least once per 7 days by i

verifying correct breaker alignment and indicated power availability.

t i

1 CALVERT CLIFFS - UNIT.2 3/4 8-10 Amendment No. 160

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEMS A.C. Distribution - Shutdown i

4 1

LINITING CONDITION FOR OPERATION 1

3.8.2.2 As a minimum, the following A.C. electrical busses shall be OPERABLE and energized from sources of power other than a diesel generator but aligned to an OPERABLE diesel generator:

4160 volt Bnergency Bus 1

I 480 volt Emergency Bus 1

2 120 volt A.C. Vital Busses l

APPLICABILITY: MODES 5 and 6.

ACTION:

a.

With less than the above complement of A.C. busses OPERABLE and energized for reasons other than the performance of Surveillance Requirement 4.8.1.1.2.d.1 on No. 12 diesel generator:

1.

Immediately* suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel and movement of heavy loads over irradiated fuel, until the minimum required A.C. busses are restored to OPERABLE and energized status, and 2.

Immediately initiate corrective actions to restore the minimum A.C. electrical busses to 0PERABLE and energized status, and 3.

Establish containment penetration closure as identified in Specification 3.9.4 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

)

U Performance of ACTION a.'shall not preclude completion of actions to establish a safe conservative position.

CALVERT CLIFFS - UNIT 2 3/4 8-11 Amendment No. 160 l

l 3/4.8 ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION (Continued) b.

With less than the above minimum required A.C. electrical power sources OPERABLE for the perfomance of Surveillance Requirement 4.8.1.1.2.d.1 on No.12 emergency diesel generator:"

1.

Verify either two 500 kV offsite power circuits or a 500 kV offsite power circuit and the 69 kV SMECO offsite power circuit are available and capable of being used. This availability shall be verified prior to removing the OPERABLE emergency diesel generators and once per shift thereafter, 2.

Suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel and movement l

of heavy loads over irradiated fuel, l

l 3.

Have established containment penetration closure as identified in Specification 3.9.4, 4.

An emergency diesel generator shall be OPERABLE and aligned to provide power to the emergency busses within seven days.

l 5.

Within two weeks prior to the planned unavailability of an OPERABLE emergency diesel generator, a temporary diesel generator shall be demonstrated available.

6.

A temporary diesel generator shall be demonstrated available by starting it at least once per 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

7.

If ACTIONS b) I through b) 6 are not met, restore compliance with the ACTIONS within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or restore an CPERABLE emergency diesel generator within the next 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

SURVEILLANCE REQUIREMENTS 4.8.2.2 The specified A.C. busses shall be determined OPERABLE and energized from A.C. sources other than the diesel generators at least once per 7 days by verifying correct breaker alignment and indicated power availability.

i l **

The provisions of ACTION b. are no longer applicable following the installation of two additional emergency diesel generators.

CALVERT CLIFFS - UNIT,2 3/4 8-12 Amendment No. 160 l

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEM D.C. Distribution - Operatino LIMITING CONDITION FOR OPERATION 3.8.2.3 The following D.C. bus trains shall be energized and OPERABLE:

a.

125-volt D.C. bus No.11, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full capacity charger, b.

125-volt D.C. bus No.12, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full capacity charger.

r c.

125-volt D.C. bus No. 21, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full i

capacity charger.

d.

125-volt D.C. bus No. 22, the associated 125-volt D.C. battery bank or as necessary the Reserve Battery, and one associated full capacity charger.

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

ACTION:

a.

With one 125-volt bus inoperable, 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 NOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SNUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

b.

With one 125-volt D.C. battery inoperable and the associated 125-volt D.C. bus not being supplied by the Reserve Battery except during surveillance testing per Specification 4.8.2.3.2.d.1:

1.

Restore the inoperable battery to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or replace the inoperable battery with the OPERABLE Reserve Battery within the next 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , or 2.

Be in at least NOT 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 .

i CALVERT CLIFFS - UNIT.2 3/4 8-13 Amendment No. 160 l

3/4.8 ELECTRICAL POWER SYSTEMS i

LIMITING CONDITION FOR OPERATION (Continued) c.

With both 125-volt battery chargers from the same D.C. bus inoperable:

1.

Except when necessary during surveillance testing per Specification 4.8.2.3.2.d.1, restore at least one 125-volt D.C. battery charger 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 NOT 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 .

j i

2.

During surveillance testing per Specification 4.8.2.3.2.d.1, restore at least one 125-volt D.C. battery charger to OPERABLE status within 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months or be in at least NOT STANDBY within 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SNUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

)

d.

With single cells having a voltage decrease of more than 0.10 volts from the previous performance discharge test (4.8.2.3.2.f) value, but still 12.10 volts per Surveillance Requirement 4.8.2.3.2.b.1, either restore / replace cells or J

replace the affected battery with the Reserve Battery within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in NOT STAND 8Y 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 .

SURVEILLANCE REQUIREMENTS 4.8.2.3.1 Each D.C. bus train shall be detemined 0PERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

4.8.2.3.2 Each 125-volt battery bank and charger and the Reserve Battery shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifying that:

j 1

1.

The electrolyte level of each pilot cell is between the minimum and maximum level indication marks.

2.

The pilot cell specific gravity, corrected to 77 F and full electrolyte level is t 1.200.

CALVERT CLIFFS - UNIT.2 3/4 8-14 Amendment No. 160

O 3/4.8 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 3.

The pilot cell voltage is 12.10 volts.

4.

The overall battery voltage is 1125 volts.

b.

At least once per 92 days by verifying that:

1.

The voltage of each connected cell is 12.10 volts under float charge and has not decreased more than 0.10 volts from the value observed during the latest performance discharge test (4.8.2.3.2. f).

2.

The specific gravity, corrected to 77 F and full electrolyte level, of each connected cell is 11.200 and has not decreased more than 0.02 from the value observed during the previous test.

3.

The electrolyte level of each connected cell is between the minimum and maximum level indication marks.

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 deterioration.

2.

The cell-to-cell and teminal connections are clean, tight, and coated with anti-corrosion material.

d.

At least once per 18 months by verifying that the battery capacity, with the charger disconnected, is adequate to either:

1.

Supply and maintain in OPERABLE status all of the actual emergency loads for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months when the battery is subjected to a battery service test. At the completion of this test, surveillance 4.8.2.3.2.e shall be perfomed for the affected battery. The battery shall be charged to at least 95% capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , or 2.

Supply a dumy load simulating the emergency loads of the design duty cycle for at least 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months while maintaining the battery teminal voltage 1105 volts. At the completion of this test, the battery shall be charged to at least 95%

capacity in 5 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , excluding the stabilization time.

The emergency loads of the design duty cycle shall be CALVERT CLIFFS - UNIT 2 3/4 8-15 Amendment No. 160 l

i 1

3/4.8 ELECTRICAL POWER SYSTEMS

)

SURVEILLANCE RE5fIREMENTS (Continued)

~

documented and updated, as appropriate, in the system description contained in FSAR Chapter 3, and updated in accordance with 10 CFR 50.71(e).

l e.

At least once per 18 months, the battery charger

shall be demonstrated capable of recharging the battery at a rate of 5 400 amperes while supplying nomal D.C. loads or equivalent or greater dunuty load.

f.

At least once per 60 months by verifying that the battery capacity is at least 80% of the manufacturer's rating when i

subjected to a perfomance discharge test. This perfomance l

discharge test shall be performed subsequent to the satisfactory completion of the required battery service test.

i i

t f

i l

Not applicable to the charger associated with the Reserve Battery.

CALVERT CLIFFS - UNIT 2 3/4 8-16 Amendment No. 160

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.2 ONSITE POWER DISTRIBUTION SYSTEM D.C. Distribution - Shutdown LIMITING CONDITION FOR OPERATION 3.8.2.4 As a minimum, the following D.C. electrical equipment and busses shall be energized and OPERABLE-i 125-volt D.C. busses, and 2

125-volt battery banks, one of which may be the Reserve 2

Battery, and one associated charger per bank supplying the l

above D.C. busses.

APPLICABILITY: MODES 5 and 6.

ACTION: With less than the above complement of D.C. equipment and busses OPERABLE:

a.

Immediately* suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel and movement of heavy loads over irradiated fuel until the minimum i

required D.C. equipmer' ai d busses are. restored to 0PERABLE status, and b.

Immediately initiate corrective actions to restore the minimum D.C. equipment and busses to 0PERABLE status, and i

c.

Establish containment penetration closure as identified in Specification 3.9.4 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months .

4 SURVEILLANCE REQUIREMENTS 4.8.2.4.1 The above required 125-volt D.C. busses shall be determined OPERABLE and energized at least once per 7 days by verifying correct breaker alignment and indicated power availability.

4.8.2.4.2 The above required 125-volt battery banks and chargers shall be demonstrated OPERABLE per Surve;11toce Requirement 4.8.2.3.2.

Performance of ACTIDE a. shall not preclude completion of actions to establish a safe conservative position.

CALVERT CLIFFS - UNIT 2 3/4 8-17 Amendment No. 160 l

- - -.

ML20059J025

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