Text

Amends 138,132,160 & 156 to Licenses DPR-19,DPR-25,DPR-29 & DPR-30,respectively,initiating TS Upgrade Program for Plants
	ML20092J376
Person / Time
Site:	Dresden, Quad Cities ; (DPR-19-A-138, DPR-25-A-132, DPR-29-A-160, DPR-30-A-156)
Issue date:	09/18/1995
From:	Stang J; NRC (Affiliation Not Assigned)
To:	;
Shared Package
ML20092J383	List: ML20092J376; ML20092J388;
References
	NUDOCS 9509220097
	Download: ML20092J376 (68)
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1 UNITED STATES j

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NUCLEAR REGULATORY COMMISSION 3

2 WASHINGTON, D.C. enans mam 4

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l j-COMMONWEALTH EDISON COMPANY I

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DOCKET NO. 50-237 J

1.

DRESDEN NUCLEAR POWER STATION. UNIT 2 5

r AMENDMENT TO FACILITY OPERATING LICENSE j.

Amendment No.'138 i

j-License No. DPR-19 l

1.

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

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i A.

'The. application for amendment by the Commonwealth Edison Company (the licensee) dated March 26, 1993, as supplemented May 15, 1995, complies with the standards and requirements of the Atomic Energy

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Act of 1954, as amended (the Act), and the Comission's rules and l

regulations set forth in 10 CFR Chapter I, i

i B.

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

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Comission; I

C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health i

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and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations i

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; l_

and E.

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

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

j 2.

Accordingly, the license is amended by changes to the Technical Specifi-cations as indicated in the attachment to this license amendment and paragraph 2.C.(2) of Facility Operating License No. DPR-19 is hereby amended to read as follows-i i

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i' 9509220097 950919 i

PDR ADOCK 05000237 p

PDR

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. (2)

Technical Specifications

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The Technical Specifications contained in Appendix A, as revised-through Amendment No. 138, are hereby incorporated in the

. license. The licensee shall operate the facility in accordance l

with the Technical Specifications.

3.

This license amendment is effective as of the date of its issuance and shall be implemented no later than December 31, 1995.

FOR THE NUCLEAR REGULATORY COMMISSION s

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F. Stang Senior Project Manager ProjectDirecbrateIII-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance:

September 18, 1995 9

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UNITED STATES g

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NUCLEAR REGULATORY COMMISSION 2

WASHINGTON, D.C. 20666m01 3*****sM COMMONWEALTH EDIS0N COMPANY DOCKET NO. 50-249 DRESDEN NUCLEAR POWER STATION. UNIT 3 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 132 License No. DPR-25 1.

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

A.

The application for amendment by the Commonwealth Edison Company (the licensee) dated March 26, 1993, as supplemented May 15, 1995, 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 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 Specifi-cations as indicated in the attachment to this license amendment and paragraph 3.B. of Facility Operating License No. DPR-25 is hereby amended to read as follows:

1 B.

Technical Specifications The Technical Specifications contained in Appendix A, as revised j

through Amendment No.132, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.

3.

This license amendment is effective as of the date of its issuance and shall be implemented no later than December 31, 1995.

FOR THE NUCLEAR REGULATORY COMMISSION

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J$hnF.Stang,IniorProjectManager Pr'oject Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance:

September 18, 1995 4

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,c ATTACHMENT TO LICENSE AMENDMENT NO. 138 AND 132 FACILITY OPERATING LICENSE NOS. DPR-19 AND DPR-25 DOCKET NOS. 50-237 AND 50-249 Revise the Appendix A Technical Specifications by removing the pages identified below and inserting the attached pages. The revised pages are identified by the captioned amendment number.

UNIT 2 UNIT 3 REMOVE REMOVE INSERT 3/4.9-1 3/4.9-1 3/4.9-1 3/4.9-la 3/4.9-la 3/4.9-2 3/4.9-2 3/4.9-2 3/4.9-3 3/4.9-3 34.9-3 3/4.9-4 3/4.9-3a 3/4.9-3a 3/4.9-5 3/4.9-4 3/4.9-4 3/4.9-6 i

3/4.9-5 3/4.9-5 3/4.9-7 3/4.9-Sa 3/4.9-Sa 3/4.9-8 3/4.9-6 3/4.9-6 3/4.9-9 3/4.9-6a 3/4.9-6a 3/4.9-10 3/4.9-11 4

3/4.9-12 3/4.9-13 3/4.9-14 3/4.9-15 3/4.9-16 3/4.9-17 3/4.9-18 3/4.9-19 3/4.9-20 3/4.9-21 B 3/4.9-7 B 3/4.9-7 B 3/4.9-1 i

B 3/4.9-7a B 3/4.9-7a B 3/4.9-2 i

B 3/4.9-8 B 3/4.9-8 8 3/4.9-3 B 3/4.9-9 B 3/4.9-9 8 3/4.9-4 B 3/4.9-5 B 3/4.9-6 B 3/4.9-7 i

B 3/4.9-8

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ELECTRICAL POWER SYSTEMS.

A.C. Sources - Operating 3/4.9.A i

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 -' SURVEILLANCE REQUIREMENTS 4

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-A.

A.C. Sources - Operating A.

A.C Sources - Operating

-As a minimum, the following A.C. electrical-1.

Each of the required independent i

power sources shall be OPERABLE:

circuits between the offsite transmission network and the onsite

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1.

Two physically independent circuits Class 1E distribution system shall be l

between the offsite transmission determined OPERABLE-l network and the onsite Class 1E distribution system, and a.

At least once per 7 days by verifying correct breakerL j

2.

Two separate and independent diesel alignments and indicated power j

generators, each with:

availability, and a.

A separate fuel oil day tank b.

[ INTENTIONALLY BLANK]

containing 2205 gallons of This requirement is an open d=

available fuel, item to be addressed in the TSUP clean-up amendment j

b.

A separate bulk fuel storage system containing 210,000 gallons 2.

Each of the required diesel generators of available fuel, and shall be demonstrated OPERABLE"' in i

accordance with the frequency c.

A separate fuel oil transfer pump.

specified in Table 4.9.A-1 by:

i a.

Verifying the fuel levels in both the' j

APPLICABILITY:

fuel oil day tank and the bulk fuel

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storage tank.

OPERATIONAL MODE (s) 1,2, and 3.

b.

Verifying the fuel transfer pump starts and transfers fuel from the i

ACTION:

bulk fuel storage system to the fuel oil day tank.

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1.

With one of the above required offsite circuit power sources inoperable:

t a.

Demonstrate the OPERABILITY of the remaining offsite circuit by performing Surveillance L

Requirement 4.9.A.1.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

a All planned diesel generator tests shall be conducted in accordance with the manufacturer's recommendations 3-i

~ regarding engine prelube, leak detection and warmup procedures, and as applicable regarding loading and shutdown recommendations.

DRESDEN - UNITS 2 & 3 3/4.9-1 Amendment Nos.138 & 132!

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s ELECTRICAL POWER SYSTEMS A.C. Sourcss - Oparating 3/4.9.A I

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVElLLANCE REQUIREMENTS i

Verifying'*I the diesel starts and b.

Demonstrate the OPERABILITY of c.

- each diesel generator by accelerates to synchronous speed.

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performing Surveillance with generator voltage and -

Requirement.4.9.A.2.c for each frequency at 4160 420 volts and diesel generator separately within 60

1.2 Hz, respectively.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months (if it has not been successfully tested within the past d.

Verifying the diesel generator is I

synchronized, loaded to between 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) and within the subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and 2470 and 2600 kW", and operatec 4

with this load for 260 minutes.

c.

Restore the inoperable offsite circuit to OPERABLE status within e.

Verifying the diesel generator is 7 days or be in at least HOT aligned to provide standby power SHUTDOWN within the next to the associated emergency 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN busses.

within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

f.

Verifying the pressure in required 2.

With one of the above required diesel starting air receiver tanks to be l

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I generator power sources inoperable:

2220 psig.

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a.

Demonstrate the OPERABILITY of 3.

Each of the required diesel generators l

the offsite circuit power sources by shall be demonstrated OPERABLE at performing Surveillance least once per 31 days and after each Requirement 4.9.A.1.a within operation of the diesel where the period l

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per of operation was 21 hour2.430556e-4 days 0.00583 hours 3.472222e-5 weeks 7.9905e-6 months by removing i

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

any accumulated water from the day tank.

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b.

If the diesel generator is inoperable

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due to any cause other than 4.

Each of the required diesel generators preplanned preventive maintenance shall be demonstrated OPERABLE at i

or testing, demonstrate the least once per 92 days by checking for OPERABILITY of the remaining and removing accumulated water from j

OPERABLE diesel generator by the fuel oil bulk storage tanks.

performing Surveillance Requirement 4.9.A.2.c within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months * (if it has not been successfully tested within the past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) and within the subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and b

Contrary to the provisions of Specification 3.0.B. this test is required to be completed regardless of when the inoperable diesel generator is restored to OPERABILITY for failures that are potentially generic to the remaining diesel generator and for which appropriate altemative testing cannot be designed.

Surveillance Requirements 4.9.A.7.a and b may be substituted for Surveillance Requirements 4.9.A.2.c and d.

c d

This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring by the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

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DRESDEN - UNITS 2 & 3 3/4.9 2 Amendment Nos.138 8 132l i

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ELECTRICAL POWER SYSTEMS A.C. Sourc;s - Oper: ting 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS c.

Restore the diesal generator to 5.

Each of the required diesel generators OPERABLE status within 7 days or shall be demonstrated OPERABLE by:

be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in a.

Sampling new fuel oil prior to COLD SHUTDOWN within the addition to the storage tanks in following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

accordance with applicable ASTM standards, and 3.

With one of the above offsite circuit power sources and one of the above b.

Verifying prior to addition to the required diesel generator power sources storage tanks that the sample inoperable:

meets the applicable ASTM standards for API gravity, water a.

Demonstrate the OPERABILITY of and sediment, and the visual test the remaining offsite circuit power for free water and particulate source by performing Surveillance contamination, and Requirement 4.9.A.1.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per c.

Verifying within 31 days of 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

obtaining the sample that the kinematic viscosity is within b.

If the diesel generator is inoperable applicable ASTM limits, due to any cause other than preplanned preventive maintenance 6.

Each of the required diesel generators or testing, demonstrate the shall be demonstrated OPERABLE by:

OPERABILITY

of the remaining OPERABLE diesel generator by a.

Sampling and analyzing the bulk performing Surveillance fuel storage tanks at least once per Requirement 4.9.A.2.c" within 31 days in accordance with 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months (if it has not been applicable ASTM standards, and successfully tested within the past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) and within the b.

Verifying that the sample meets subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months for each the applicable ASTM standards for OPERABLE diesel generator.

water and sediment, kinematic viscosity, and ASTM particulate c.

Restore at least one of the contaminant is < 10 mg/ liter, inoperable A.C. power sources to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months or be in at least HOT SHUTDOWN e

A successful test of OPERABILITY per Surveillance Requirement 4.9.A.2.c under this ACTION statement satisfies the diesel generator test requirements of ACTION (s) 1 or 2 above.

b Contrary to the provisions of Specification 3.0.B. this test is required to be completed regardless of when the inoperable diesel generatoris restored to OPERABILITY for failures that are potentially generic to the remaining diesel generator and for which appropriate alternative testing cannot be designed.

DRESDEN - UNITS 2 & 3 3/4.9-3 Amendment Nos. 138 & 132

ELECTRICAL POWER SYSTEMS A.C. Sourcrs - Op: rating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVElLLANCE REQUIREMENTS within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in 7.

Each of the required diesel generators COLD SHUTDOWN within the shall be demonstrated OPERABLE'd at following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , and least once per 184 days by:

d.

Restore both offsite circuits and a.

Verifying'" the diesel starts and both diesel generators to accelerates to synchronous speed OPERABLE status within 7 days in s13 seconds. The generator from the time of the initial loss or.

voltage and frequency shall be be in at least HOT SHUTDOWN verified to reach 4160 420 volts within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in and 60 i1.2 Hz, respectively, in COLD SHUTDOWN within the 513 seconds after the start signal.

i following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , id b.

Verifying the diesel generator is 4.

With one of the above required diesel synchronized, loaded to between generator power sources inoperable, in 2470 and 2600 kWid'in s200 addition to ACTION 2 or 3, as seconds, and operates with this applicable:

load for 260 minutes.

a.

Verify within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months that at least 8.

Each of the required diesel generators one of the required two systems, shall be demonstrated OPERABLE'" at subsystems, trains, components least once per 18 months by:

and devices in two train systems is OPERABLE including its emergency a.

Subjecting the diesel to an power supply.

inspection in accordance with instructions prepared in conjundtion b.

Otherwise, take the applicable with its manufacturer's ACTIONS for both systems, recommendations for this class of subsystems, trains, components or standby service.

devices inoperable, or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

a All planned diesbl generator tests shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube. lcak detection and warmup procedures, and as applicable regarding loading and shutdown recommendations, i

c Surveillance Requirements 4.9.A.7.a and b may be substituted for Surveillance Requirements 4.9.A.2.c and d.

d This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring by the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

138&132)

DRESDEN - UNITS 2 & 3 3/4.9 4 Amendment Nos.

ELECTRICAL POWER SYSTEMS A.C. Soure s - Operating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS 5.

With two of the above required offsite b.

[ INTENTIONALLY BLANK) circuit power sources inoperable:

This requirement is an open item to be addessed in the a.

Demonstrate the OPERABILITY

of TSUP clean-up amendment both of the above required diesel generators separately by performing Surveillance Requirement 4.9.A.2.c within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months (if it has not been successfully tested within the past c.

Verifying the diesel generator 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ), unless the diesel capability to reject a full emergency generators are already operating, load without tripping. The and within the subsequent generator voltage shall not exceed 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

5000 volts during or following the load rejection.

b.

Restore at least one of the inoperable offsite circuits to d.

Simulating a loss of offsite power OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by itself, and:

or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and

1) Verifying de energization of the within COLD SHUTDOWN within emergency buses, and load the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , and shedding from the emergency buses.

l c.

Restore at least two offsite circuits to OPERABLE status within 7 days

2) Verifying the diesel starts on from the time of initialloss or be in the auto-start signal, energizes at least HOT SHUTDOWN within the emergency buses with j

the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD permanently connected loads SHUTDOWN within the following in 513 seconds, energizes the 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

auto-connected shutdovvn loads, and operates with this 6.

With both of the above required diesel load for 25 minutes. After generator power sources inoperable:

energization, the steady state voltage and frequency of the a.

Demonstrate the OPERABILITY of emergency busses shall be the offsite circuit power sources by maintained at 4160 420 performing Surveillance volts and 60 1.2 Hz, Requirement 4.9.A.1.a within respectively, during this test.

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

2 e

A successfultest of OPERABILITY per Surveillance Requirement 4.9.A.2.c under this ACTION statement satisfies the diesel generator test requirements of ACTION (s) 1 or 2 above.

DRESDEN - UNITS 2 & 3 3/4.9-5 Amendment Nos. 138 & 132) a

ELECTRICAL POWER SYSTEMS A.C. Sourc:s - Operating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS b.

Within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , restore at least one e.

Verifying that on an ECCS of the above required diesel actuation test signal, without loss generators to OPERABLE

status of offsite power, the diesel and verify that at least one of the generator starts on the auto-start required two systema, subsystems, signal and operates on standby for trains, components and devices in 25 minutes. The generator voltage two train systems is OPERABLE and frequency shall be 4160 420 including its emergency power volts and 60 i1.2 Hz, supply. Otherwise, take the respectively, in s13 seconds after applicable ACTIONS for both the auto-start signal; the steady systems, subsystems, trains, state generator voltage and components or devices inoperable, frequency shall be maintained or be in at least HOT SHUTDOWN within these limits during this test.

within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the f.

Simulating a loss of offsite power following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

in conjunction with an ECCS actuation test signal, and c.

Demonstrate the continued OPERABILITY of the restored diesel

1) Verifying de-energization of the generator by performing emergency buses, and load Surveillance Requirement 4.9.A.2.c shedding from the emergency within the subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , buses.

and

2) Verifying the diesel starts on d.

Restore at least two required diesel the auto-start signal, energizes generators to OPERABLE status the emergency buses with within 7 days from the time of permanently connected loads initial loss or be in at least HOT in 513 seconds, energizes the SHUTDOWN within the next auto-connected emergency 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN loads through the load within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

sequencer, and operates with this load for 25 minutes. After 7.

With the fuel oil contained in the bulk energization, the steady-state fuel storage tank (s) not meeting the voltage and frequency of the properties specified in Surveillance emergency busses shall be Requirements 4.9.A.5 and 4.9.A.6, maintained at 4160 i420 4

restore the fuel oil properties to within volts and 60 i1.2 Hz, the specified limits within 7 days, respectively, during this test.

Otherwise, declare the associated diesel generator (s) inoperable.

c A successful test of OPERABILITY per Surveillance Requirement 4.9.A.2.c under this ACTION statement satisfies the diesel generator test requirements of ACTION (s) 1 or 2 ebove.

DRESDEN - UNITS 2 & 3 3/4.9-6 Amendment Nos. 138 & 132

e ELECTRICAL POWER SYSTEMS A.C. Sources - Operating 3/4'.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4,9 - SURVEILLANCE REftUIREMENTS

8. [ INTENTIONALLY BLANK) g.

Verifying that all automatic diesel This requirement is an open generator trips, except engine item to be addressed in the overspeed and generator TSUP clean-up amendment differential current are automatically bypassed upon an emergency actuation signal.

h.

Verifying the diesel generator operates for 224 hours0.00259 days 0.0622 hours 3.703704e-4 weeks 8.5232e-5 months . During the first 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months of this test, the diesel generator shall be loaded to between 2730 and 2860 kW'd' and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the diesel generator shall be loaded to between 2470 and 2600 kW. The generator voltage and frequency shall be 4160 t420 volts and 60 1.2 Hz, respectively, in 513 seconds after the start signal; the steady state generator voltage and frequency shall be maintained within these i

limits during this test. Within,

5 minutes after completing this 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months test, perform Surveillance Requirement 4.9.A.8.f.2*.

l i.

Verifying that the auto-connected loads to each diesel generator do i

not exceed the 2000 hour0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months rating of 2860 kW.

l t

i f

Criteria for determining the number of valid failures and number of valid tests shall be in accordance with draft Revision 3 of Regulatory Guide 1.9, January 1991, but determined on a per diesel generator basis. With the exception of the semi-annual fast start, no starting time requirements are required to meet the valid test requirements.

d This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring by the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

g If Surveillance Requirement 4.9.A.8.f.2 is not satisfactorily completed, it is not necessary to repeat the preceding 24

- hour test. Instead, the diesel generator may be operated at approximately full load for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months or until the operating temperature has stabilized.

DRESDEN - UNITS 2 & 3 3/4.9-7 Amendment Nos. 138 & 132

ELECTRICAL POWER SYSTEMS A.C. Sourcrs - Op; rating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVElLLANCE REQUIREMENTS j.

Verifying the diesel generator's capability to:

1) synchronize with the offsite power source while the generator is loaded with its emergency loads upon a simulated restoration of offsite

power,

2) transfer its loads to the offsite power source, and

3) be restored to its standby status.

k.

Verifying that the automatic load sequence timer is OPERABLE with the interval between each load block within 10% of its design interval.

9.

Each of the required diesel generators shall be demonstrated OPERABLE at least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel generators simultaneously, and verifying that both diesel generators accelerate to 2900 rpm in s13 seconds.

10. Each of the required diesel generators shall be demonstrated OPERABLE at least once per 10 years by draining each fuel oil storage tank, removing the accumulated sediment and cleaning the tank.

a All planned diesel generator tests shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube, leak detection and warmup procedures, and as applicable regarding loading and shutdown

. recommendations.

DRESDEN - UNITS 2 & 3 3/4.9-8 Amendment Nos. 138 & 132

_.m.

s ELECTRICAL POWER SYSTEMS A.C. Sourc;s - Op rating 3/4.9.A TABLE 4.9. A-1 DIESEL GENERATOR TEST SCHEDULE NUMBER OF FAILURES IN LAST 20 VAllD TESTSM TEST FREQUENCY 51 At least once per 31 days t

52 *'

At least once per 7 days i

l i

a-Criteria for determining the number of valid failures and number of valid tests shall be in accordance with draft

)

Revision 3 of Regulatory Guide 1.9, January 1991 but determined on a per diesel generator basis. With the exception of the semi-annual fast start. no starting time requirements are required to meet the valid test requirements.

l b

The associated test frequency shall be maintained until 7 consecutive failure free demands have been performed AND the number of failures in the last 20 valid demands has been reduced to one.

DRESDEN - UNITS 2 & 3 3/4.9-9 Amendment Nos. 138 & 132

=-

t ELECTRICAL POWER SYSTEMS A.C. Sourcss - Shutdown 3/4.9.B 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVElLLANCE REQUIREMENTS B.-

A.C. Sources - Shutdown B.

A.C Sources - Shutdown As a minimum, the following A.C. electrical Each of the required A.C. electrical power power sources shall be OPERABLE:

sources shall be demonstrated OPERABLE per the surveillance requirements in s

l 1.

Oni circuit between the offsite Specification 4.9.A, except for 4.9.A.2.d.

transmission network and the onsite i

Class 1E distribution system, and j

2.

One diesel gen 3rator with:

i a.

A fuel oil day tank containing 2205 gallons of available fuel, b.

A bulk fuel storage system containing 210,000 gallons of available fuel, and c.

A fuel oil transfer pump.

i APPLICABILITY:

I OPERATIONAL MODE (s) 4 and 5, and when handling irradiated fuel in the secondary containment.

ACTION:

d 1.

With less than the above required A.C.

electrical power sources OPERABLE:

a.

Suspend CORE ALTERATIONS, b.

Suspend handling of irradiated fuel in the secondary containment, c.

Suspend operations with a potential for draining the reactor vessel, and i

DRESDEN - UNITS 2 & 3 3/4.9-10 Amendment Nos. 138 & 132

ELECTRICAL POWER SYSTEMS A.C. Sourcss - Shutdown 3/4.9.B l

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS J

d.

Suspend crane operations over the spent fuel storage poolif fuel assemblies are stored therein.

2 in addition, when in OPERATIONAL MODE 5 with the water level < 23 feet above the reactor pressure vessel flange, immediately initiate corrective action to restore the required power sources to OPERABLE status as soon l

as practical.

3.

The provisions of Specification 3.0.C are not applicable.

l l

W 4

1 4

i 4

DRESDEN - UNITS 2 & 3 3/4.9-11 Amendment Nos. 138 & 132 l

ELECTRICAL POWER SYSTEMS D.C. Sources - Optrating 3/4.9.C t

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS C.

D.C. Sources - Operating C.

D.C. Sources - Operating j

As a minirnum, the following D.C. electrical Each of the required 24/48 volt,125 voit

)

power sources shall be OPERABLE with the and 250 voit batteries and chargers shall be identified parameters within the limits demonstrated OPERABLE *:

i specified in Table 4.9.C-1:

1.

At least once per 7 days by verifying 1.

Two station 250 volt batteries, that:

l each with a full capacity charger.

I a.

The parameters in Table 4.9.C-1 2.

Two station 125 voit batteries, meet Category A limits, and each with a full capacity charger.

4 b.

There is correct breaker alignment 3.

One unit 24/48 volt battery, with a to the battery chargers and total j

full capacity charger.

battery terminal voltage is 226.0, 2125.9, or 2260.4 volts, as applicable, on float charge.

APPLICABILITY:

i OPERATIONAL MODE (s) 1,2, and 3.

2.

At least once per 92 days and within 7 days after a battery discharge with a battery terminal voltage below 21.7, i

j ACTION:

105 or 210 volts, as applicable, or battery overcharge with battery terminal voltage above 30,150 or 300 l

1. [ INTENTIONALLY BLANK]

volts, as applicable, by verifying that:

This requirement is an open a.

The parameters in Table 4.9.C-1 item to be addressed in the meet the Category B limits, TSUP clean-up amendment b.

There is no visible corrosion at i

2. [ INTENTIONALLY BLANK]

e ther terminals or connectors, or This requirement is an open the connection resistance of these item to be addressed in the items is $150 x104 ohms or s20%

TSUP clean-up amendment above baseline connection resistance, whichever is higher, and c.

[ INTENTIONALLY BLANK]

i a

An atternate 125 volt battery shall adhere to these same Surveillance Requirements to be considered OPERABLE.

ex,ept the Unit 2 total battery terminal voltage on float charge shall be verified weekly as 2130.2 volts.

DRESDEN - UNITS 2 & 3 3/4.9-12 Amendment Nos.138 & 13s e

~

~ - - - -

I ELECTRICAL POWER SYSTEMS D.C. Sourcss - Opsrating 3/4.9.C 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVElLLANCE REQUIREMENTS 3.

With the provisions of either ACTION 1 3.

At least every 18 months by verifying or 2 above not met, be in at least HOT that:

SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the a.

The cells, cell plates and battery following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , racks show no visual indication of physical damage or abnormal 4.

With any Category A parameter (s) deterioration.

outside the limit (s) shown in Table 4.9.C-1, the battery may be considered b.

The cell-to-cell and terminal OPERABLE provided that its associated connections are clean, tight, free of charger is OPERABLE, and within 24 corrosion and coated with hours all the category B measurements anti-corrosion material.

i are taken and found to be within their allowable values, and provided all c.

The resistance of each cell-to-cell Category A and B parameter (s) are and terminal connection is restored to within limits within the next s150 x104 ohms or s20% above 6 days, baseline connection resistance, whichever is higher.

5.

With any Category B parameter (s) outside the limit (s) shown in Table d.

The battery chargers will supply a 4.9.C-1, the battery may be considered load equal to the manufacturer's OPERABLE provided that the Category rating for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

B parameters are within their allowable values and provided the Category B 4.

At least every 18 months, by verifying I

parameter (s) are restored to within the that the battery capacity is adequate to limit (s) within 7 days.

supply and maintain in OPERABLE i

status all of the actual or simulated 6.

With any Category B parameter not emergency loads for design duty cycle i

within its allowable value(s),

when the battery is subjected to a immediately declare the battery battery service test.

inoperable.

i 5.

[ INTENTIONALLY BLANK]

This requirement is an open item to be addessed in the TSUP clean-up amendment l

DRESDEN - UNITS 2 & 3 3/4.9-13 Amendment Nos.138 & 132

1 ELECTRICAL POWER SYSTEMS D.C. Sources - Operating 3/4.9.C 3.9 LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS 6.

[ INTENTIONALLY BLANK]

This requirement is an open item to be addressed in the TSUP clean-up amendment l

l DRESDEN - UNITS 2 & 3 3/4.9 14 Amendment Nos.138 & 13

l ELECTRICAL POWER SYSTEMS D.C. Sourcss - Op3rsting 3/4.9.C TABLE 4.9.C-1 BATTERY SURVEILLANCE REQUIREMENTS CATEGORY A CATEGORY B -

'I 1

PARAMETER LIMITS FOR EACH LIMITS FOR EACH ALLOWABLE VALUE i

DESIGNATED PILOT CONNECTED CELL FOR EACH CELL CONNECTED CELL Electrolyte Level

> Minimum level

> Minimum level Above top of plates, indication mark, and-indication mark, and and not overflowing s%" above maximum s%" above maximum I

level indication mark level indication mark Float Voltage 22.13 volts 22.13 volts

22.07 volts

{

Specific Gravity

21.200*

21.195*, and Not more than 0.020 below the average of all l-connected cells, and i

Average of all Average of all connected cells connected cells

> 1.205*

21.195*

1 2

TABLE NOTATIONS (a) Corrected for electrolyte temperature and level.

(b) Or battery charging current is less than 2 amperes when on float charge.

l l

l (c) May be corrected for average electrolyte temperature.

i

)

i i.

DRESDEN - UNITS 2 & 3 3/4.9-15 Amendment Nos. 138 & 132 l

l

ELECTRICAL POWER SYSTEMS D.C. Sourcts - Shutdown 3/4.9.D 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS D.

D.C. Sources - Shutdown D.

D.C. Sources - Shutdown As a minimum, the following D.C. electrical The required batteries and chargers shall be power sources shall be OPERABLE:

demonstrated OPERABLE

per the surveillance requirements in Specification 4.9.C.

j 1.

One station 250 volt battery with a full capacity charger.

2.

One station 125 volt battery with a full capacity charger.

3.

One unit 24/48 volt battery with a full capacity charger.

APPLICABILITY:

OPERATIONAL MODE (s) 4 and 5, and when handling irradiated fuel in the secondary containment.

ACTION:

With any of the above required station batteries and/or associated charger (s) inoperable, suspend CORE ALTERATIONS, suspend handling of irradiated fuelin the secondary containment, and suspend operations with a potential for draining the reactor vessel.

a An aftomate 125 volt battery shall adhere to these same Surveillance Requirements to be considered OPERABLE, except the Unit 2 total battery terminal voltage on float charge shall be verified weekly as ;t130.2 volts.

DRESDEN - UNITS 2 & 3 3/4.9-16 Amendment Nos.

138 & 132

ELECTRICAL POWER SYSTEMS Distribution - Op; rating 3/4.9.E 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS E.

Distribution - Operating E.

Distribution - Operating The following power distribution systems Each of the required power distribution shall be energized with tie breakers open system divisions shall be determined both between redundant buses within the energized at least once per 7 days by unit and between units at the same station:

verifying correct breaker alignment and voltage on the busses /MCCs/ panels.

1.

A.C. power distribution, consisting of:,

a.

Both Unit engineered safety features 4160 volt buses:

1) For Unit 2, Nos. 23-1 and 24-1,

2) For Unit 3, Nos. 33-1 and 34-1.

b.

Both Unit engineered safety features 480 voit buses:

1 1

1) For Unit 2, Nos. 28 and 29,

2) For Unit 3, Nos. 38 and 39.

c.

The Unit 120 volt Essential Service l

Bus and Instrument Bus.

2.

250 volt D.C. power distribution, consisting of:

)

a.

RB MCC Nos. 2 and 3, and l

b.

TB MCC Nos. 2 and 3.

3.

For Unit 2,125 volt D.C. power distribution, consisting of:

a.

TB Main Bus Nos. 2A-land 3A, b.

TB Res. Bus Nos. 2B and 2B-1, c.

Reserve Bus No. 2, and d.

RB Distribution Panel No. 2.

DRESDEN - UNITS 2 & 3 3/4.9-17 Amendment Nos. 138 & 132

m-

ELECTRICAL POWER SYSTEMS.

' Distributinn - Op; rating 3/4.9.E 3.9 - LIMITING CONDITIONS FOR OPERATION l4.9 - SURVEILLANCE REQUIREMENTS -

.4.

For Unit 3,125 volt D.C. power

. distribution, consisting of:

a.

TB Main Bus Nos. 2A-1,3A and 3A-1, b.

TB Res. Bus Nos. 38 and 3B 1, and 1

c.'.

RB Distribution Panel No.~ 3.

5.

24/48 volt D.C. power distribution, consisting of:

'j a.

For Unit 2, Bus Nos. 2A and 2B.

l b.

For Unit 3, Bus Nos. 3A and 3B.

APPLICABILITY:

5 OPERATIONAL MODE (s) 1,2, and 3.

ACTIONS:

1.

With one of the above required A.C.

distribution systems not energized, re-energize the system within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least Hot Shutdown within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in Cold Shutdown within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

2.

With one of the above required D.C.

distribution systems not energized, re energize the system within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least Hot Shutdown within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in Cold Shutdown within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

- c.

a 3.

DRESDEN.- UNITS 2 & 3 3/4.9-18 Amendment Nos. 138 & 132

ELECTRICAL POWER SYSTEMS Distribution - Shutdown 3/4.9.F 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS F.

Distribution Shutdown F.

Distribution - Shutdown The following power distribution systems Each of the required power distribution shall be energized with:

system divisions shall be determined energized at least once per 7 days by 1.

A.C. power distribution consisting of:

verifying correct breaker alignment and

[

voltage on the busses /MCCs/ panels.

a.

One Unit engineered safety features 4160 volt bus:

1) For Unit 2, No. 23-1 or 24-1,

2) For Unit 3, No. 33-1 or 34-1.

b.

One associated Unit engineered safety features 480 volt bus:

i l

1) For Unit 2, No. 28 or 29, j

2) For Unit 3, No. 38 or 39.

2.

For Unit 2,125 volt D.C. power distribution, consisting of either:

a.

TB Main Bus No. 2A 1, and RB Distribution Panet No. 2, or b.

TB Main Bus No. 3A, Reserve Bus No. 2, and TB Res. Bus Nos. 28 and 2B 1.

3.

For Unit 3,125 volt D.C. power distribution, consisting of either:

4 a.

TB Main Bus Nos. 3A and 3A-1, and RB Distribution Panel No. 3, or b.

TB Main Bus No. 2A-1 and TB Res. Bus Nos. 3B and 3B-1.

DRESDEN - UNITS 2 & 3 3/4.9-19 Amendment Nos. 138 & 132

a ELECTRICAL POWER SYSTEMS Distributi:n - Shutdown 3/4.9.F

' 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS 4.

For 24/48 volt D.C. distribution, either:

a.

Bus Nos. 2A and 2B, or b.

Bus Nos. 3A and 38.

APPLICABILITY:

OPERATIONAL MODE (s) 4, 5, and when handling irradiated fuel in the secondary containment.

ACTIONS:

With less than the above required A.C. or D.C. distribution systems energized, suspend CORE ALTERATIONS, suspend handling of irradiated fuel in the secondary containment, and suspend operations with a potential for draining the reactor vessel, l

1 DRESDEN - UNITS 2 & 3 3/4.9-20 Amendment Nos. 138 & 132

ELECTRICAL POWER SYSTEMS RPS Powsr Monitoring 3/4.9.G 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS G.

RPS Power Monitoring G.

RPS Power Monitoring Two Reactor Protection System (RPS)

The specified RPS electric power monitoring electric power monitoring CHANNEL (s) for CHANNEL (s) shall be determined OPERABLE:

each inservice RPS Motor Generator (MG) set or alternate power supply shall be 1.

By performance of a CHANNEL OPERABLE.

FUNCTIONAL TEST each time the plant is in COLD SHUTDOWN for a period of more than 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , unless performed APPLICABILITY:

in the previous 6 months.

OPERATIONAL MODE (s) 1, 2, 3, 4* and 5.

2.

At least once per 18 months by demonstrating the OPERABILITY of overvoltage, undervoltage, and ACTION:

underfrequency protective instrumentation by performance of a 1.

With one RPS electric power monitoring CHANNEL CALIBRATION including CHANNEL for an inservice RPS MG set simulated automatic actuation of the or alternate power supply inoperable, protective relays, tripping logic, and restore the inoperable power monitoring output circuit breakers, and verifying l

CHANNEL to OPERABLE status within the following setpoints:

72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or remove the associated RPS MG set or alternate power supply from a.

Overvoltage s129.6 volts AC service.

b.

Undervoltage 2105.3 volts AC l

2.

With both RPS electric power monitoring CHANNEL (s) for an c.

Underfrequency 255.4 Hz inservice RPS MG set or alternate power supply inoperable, restore at least one electric power monitoring CHANNEL to OPERABLE status within 30 minutes or remove the associated RPS MG set or alternate power supply from service.

a With any control rod withdrawn.

DRESDEN - UNITS 2 & 3 3/4.9-21 Amendment Nos. 138 & 132 ;

ELECTRICAL POWER SYSTEMS B 3/4.9 i

BASES 3

,4

-1 l_

The initial conditions of deeign basis transient and accident analyses assume Engineering Safety Features (ESF) systems are OPERABLE. The A.C. and D.C. electrical power sources are designed to provide sufficient capacity, capability, redundancy, and r'eliability to ensure the availability of necessary power to ESF systems so that the fuel, reactor coolant system and containment design

' limits are not exceeded.

I The A.C. and D.C'. sources are designed to pern')it inspection and testing of all important areas and' features, especially those that have a standby function. Periodic component tests are l

. supplemented by extensive functional testing during refueling outages under simulated accident l

conditions.

j i

- 3/4.9. A A.C. Sources - Operatina

[

The OPERABILITY of the A.C. electrical power sources is consistent with the initial assumptions of the accident analyses and is based upon meeting the design basis of the plant. This includes i

maintaining at least one of the onsite or offsite A.C. sources, D.C. power sources and associated

- distribution systems OPERABLE during accident conditions concurrent with an assumed loss of all j

offsite power and a worst case single failure.

There are two sources of electrical energy available, i.e., the offsite transmission system and the j__

onsite diesel generators. Two unit reserve auxiliary transformers are available to supply the L

Station class 1E distribution system. The reserve auxiliary transformer is sized to carry 100% of l

the auxiliary load if this reserve auxiliary transformer (the normal circuit) is lost, auxiliary power from the other unit can be obtained for one division through the 4160 volt bus tie (the alternate 5-circuit). Additionally, two diesel generators are available to handle an accident. The allowable outage time takes into account the capacity and capability of the remaining A.C. sources, reasonable time for repairs, and the low probability of a design basis accident occurring during this period. Surveillance is required to ensure a highly reliable power source and no common cause failure mode for the remaining required offsite A.C. source.

Upon failure of one diesel generator, performance of appropriate surveillance requirements ensures l

i i

a highly reliable power supply by checking the availability of the required offsite circuits, and the j

remaining required diesel generator. The initial surveillance is required to be completed regardless i-l of how long the diesel inoperability persists, since the intent is that all diesel generator l

inoperabilities must be investigated for common cause failures. After the initial surveillance, an additional start test is required approximately mid-way through the allowed outage time to demonstrate continued OPERABILITY of the available onsite power sources. The diesel generator I

surveillance is limited to the normal start testing, since for cases in which less than a full complement of A.C. sources may be available, paralleling of two of the remaining A.C. sources may compromise the A.C. source independence. Additionally, the action provisions ensure that continued plant operation is not allowed when a complete loss of a required safety function (i.e.,

l certain required components) would occur upon a loss of offsite power. These certain components i

which are critical to accomplishment of the required safety functions may be identified in advance and administratively controlled and/or evaluated on a case-by-case basis. With suitable DRESDEN - UNITS 2 & 3 B 3/4.9-1 Amendment Nos. 138 & 132 i

l.-

4 j

ELECTRICAL POWER SYSTEMS B 3/4.9 5.

[

BASES l

redundancy in components and features not available, the plant must be placed in a condition for i

which the Limiting Condition for Operation does not apply.

t 4.

i The term verify as used toward A.C. electrical power sources means to administratively check by i

examining logs or other information to determine if certain components are out-of-service for pre-planned preventative maintenance, testing, or other reasons, it does not mean to perform the j

it surveillance requirements needed to demonstrate the OPERABILITY of the component.

i With one offsite circuit and one diesel generator inoperable, individual redundancy is lost in both the offsite and onsite electrical power system. Therefore, the allowable outage time is more f

~

limited. The time limit takes into account the capacity and capability of the remaining sources, reasonable time for repains, and the low probability of a design basis event occurring during this l

j period.

l

.With both of the required offsite circuits inoperable, sufficient onsite A.C. sources are available to maintain the unit in a safe shutdown condition in the event of a design basis transient or accident.

t In fact, a simultaneous loss of offsite A.C. sources, a loss-of-coolant accident, and a worst-case single failure were postulated as a part of the design basis in the safety analysis. Thus, the l

l allowable outage. time provides a period of time to effect restoration of all or all but one of the

{'

offsite circuits commensurate with the importance of maintaining an A.C. electrical power system i capable of meeting its design intent.

j j

With two diesel generators inoperable there are no remaining standby A.C. sources. Thus, with an j

assumed loss of offsite electrical power, insufficient standby A.C. sources are available to power the minimum required ESF functions. Since the offsite electrical power system is the only source a

of A.C. powe for this level of degradation, the risk associated with continued operation for a very l

short time could be less than that associated with an immediate controlled shutdown, which could result in grid instability and possibly a loss of total A.C. power. The allowable time to repair is i

severely restricted during this condition. The intent here is to avoid the risk associated with an immediate controlled shutdown and to minimize the risk associated with this level of degradation.

j Reporting requirements are included for a " problem emergency diesel generator," as recommended in Regulatory Guide 1.9, draft Revision 3. The required report should include a description of the

[

failures, the underlying causes, and the corrective actions taken.

I L

Surveillance Requirements are provided which assure proper circuit continuity for the offsite A.C.

l electrical power supply to the onsite distribution network and availability of offsite A.C. electrical i

I power. The breaker alignment verifies that each breaker is in its correct position to ensure distribution buses and loads are connected to their preferred power source. The frequency is

?

adequate since breaker position is not likely to change without the operator being aware of it and i

j because status is displayed in the control room. Should the action provisions of this specification require an increase in frequency, this Surveillance Requirement assures proper circuit continuity for the available offsite A.C. sources during periods of degradation and potential information on l

common cause failures that would otherwise go undiscovered.

t

[

DRESDEN - UNITS 2 & 3 B 3/4.9-2 Amendment Nos. 138 & 132 ;

i e

ELECTRICAL POWER SYSTEMS B 3/4.9 BASES Surveillance Requirements are also provided for demonstrating the OPERABILITY of the diesel generators. The specified testing is based on the guidance provided in Regulatory Guide 1.9, draft Revision 3 (1/91), Regulatory Guide 1.108, Revision 1, and Regulatory Guide 1.137, Revision 1, as modified by plant specific analysis, diesel generator manufacturer recommendations and responses to Generic Letter 84-15.

The diesel generators are equipped with a prelubrication system which maintains a continuous flow of oil to the diesel engine moving parts while the engine is shutdown. The purpose of this system is to increase long term diesel generator reliability by reducing the stress and wear caused by frequent dry starting of the diesel generator. The diesel generator prelube may be accomplished either through normal operation of the installed prelubrication system or by manual prelubrication of the diesel generator in accordance with the manufacturer's instructions. Performance of an idle start of the diesel generator is not considered to be a means of prelubrication.

A periodic " start test" of the diesel generators demonstrates proper startup from standby conditions, and verifies that the required generator voltage and frequency is attained. For this test, the diesel generator may be slow started and reach rated speed on a prescribed schedule that is selected to minimize stress and wear. In cases where this Surveillance Requirement is being used to identify a possible common cause failure modes in accordance with the action provisions, this test eliminates the risk of paralleling two of the remaining A.C. sources, which may compromise the A.C. source independence.

A " load-run test" normally follows the periodic " start test" of the diesel generator to demonstrate operation at or near the continuous rating. This surveillance should only be conducted on one diesel generator at a time in order to avoid common cause failures that might result from offsite circuit or grid perturbations. A minimum run time of 60 minutes is required to stabilize engine temperatures. Actual run, time should be in accordance with vendor recommendations with regard to good operating practice and should be sufficient to ensure that cooling and lubrication are adequate for extended periods of operation, while minimizing the time that the diesel generator is connected to the offsite source. This Surveillance Requirement may include gradualloading, as recommended by the manufacturer, so that mechanical stress and wear on the diesel engine are minimized. A load band is provided to avoid routine overloading of the diesel generators.

Momentary transients outside the load band because of changing bus loads do not impact the validity of this test.

A periodic surveillance requirement is provided to assure the diesel generator is aligned to provide standby power on demand. Periodic surveillance requirements also verify that, without 'he aid of the refill compressor, sufficient air start capacity for each diesel generator is available. Wth either pair of air receiver tanks at the minimum specified pressure, there is sufficient air in the tanks to start the associated diesel generator.

Surveillance requirements provide verification that there is an adequate inventory of fuel oilin the storage tanks that is sufficient to provide time to place the facility in a safe shutdown condition and to bring in replenishment fuel from an offsite location. Additional diesel fuel can normally be obtained and delivered to the site within an eight hour period; thus a two day supply provides for DRESDEN - UNITS 2 & 3 B 3/4.9-3 Amendment Nos.138 & 132

ELECTRICAL POWER SYSTEMS B 3/4.9 BASES I

adequate margin. The operation of each required fuel oil transfer pump is demonstrated by transferring fuel oil from its associated storage tank to its associated day tank. This surveillance provides assurance that the fuel oil transfer pump is OPERABLE, the fuel oil piping system is intact, the fuel delivery piping is not obstructed, and the necessary fuel oil day tank instrumentation is OPERABLE.

A comprehensive surveillance program is provided to ensure the availability of high quality fuel oil for the diesel generators which is necessary to ensure proper operation. Water content should be minimized, because water in the fuel would contribute to excessive corrosion of the system, causing decreased reliability. The growth of micro-organisms results in slime formations, which are one of the chief causes of jellying in hydrocarbon fuels. Therefore, minimizing such slimes is also essential to assuring high reliability.

3 Sampling of both new diesel fuel oil and the bulk fuel oil storage tanks is in accordance with the American Society for Testing Materials (ASTM) standard D4057. Testing for API gravity is in accordance with ASTM D1298, water and sediment is in accordance with ASTM D1796, and the visual test for free water and particulate contamination (clear and bright) is in accordance with ASTM D4176. Testing for kinematic viscosity is in accordance with ASTM D445 and particulate contaminant testing is in accordance with ASTM D2276. Parameter limits are in accordance with ASTM D396 for API gravity, ASTM D975 for water and sediment and for kinematic viscosity, and ASTM D4176 for " clear and bright." The specific revision in use for each of these standards is controlled by procedure.

l The diesel fuel oil day tanks are not equipped with the capability to obtain samples. Any accumulated water is removed by partially draining the day tank to the bulk fuel oil storage tank on l

a routine basis. Monthly sampling of the bulk fuel oil storage tank is then used to detect the presence of any water.

Fuel oil testing may indicate that such fuel oil is not within the required parameters. However, continued operation is acceptable while measures are taken to restore the properties of the fuel oil to within its limits since the properties of interest, even if they were not within the required limits, would not have an immediate effect on diesel generator operation. If the fuel oil properties cannot be returned to within their limits in the allowed time, the associated diesel generator (s) is (are) declared inoperable and the appropriate ACTION (s) taken.

A semi-annual surveillance is provided to verify the diesel generator can " fast start" from standby conditions and achieve the required voltage and frequency within the timing assumptions of the design basis loss of coolant accident safety analysis. Conducting this test on a semi-annual frequency is consistent with the intent of the reduction of cold testing identified in Generic Letter 84-15.

Additional surveillance requirements provide for periodic inspections and demonstration of the diesel generator capabilities, some are conducted in conjunction with a simulated loss of offsite power and/or a simulated ESF actuation signal. These tests of the diesel generator are expected to DRESDEN - UNITS 2 & 3 B 3/4.9-4 Amendment Nos. 138 & 132 !

e i

ELECTRICAL POWER SYSTEMS B 3/4.9 BASES l

be conducted during an outage to functionally test the system. This testing is consistent with the intent of the diesel generator reliability programs recommended by Regulatory Guide 1.155.

)

I 3/4.9.B A.C. Sources - Shutdown The A.C. sources required during Cold Shutdow"n, Refueling, when handling irradiated fuel and during operations with a potential for draining the reactor vessel provide assurance that:

1.

Systems to provide adequate coolant inventory makeup are available for the irradiated fuel in the core in case of an inadvertent draindown of the reactor vessel; 2.

Systems needed to mitigate a fuel handling accident are available; 3.

Systems necessary to mitigate the effects of events that can lead to core damage during shutdown are OPERABLE; and 4.

Instrumentation and control capability is available for monitoring and maintaining the unit in a cold shutdown condition and refueling condition.

With one or more of the required A.C. electrical power sources inoperable, the action provisions

)

9 require a suspension of activities that will preclude the occurrence of actions that could potentially 1

initiate the postulated events. However, timely suspension of these activities is not intended to preclude completion of actions necessary to establish a safe, conservative condition.

The Surveillance Requirements for A.C. Source Shutdown are the same as those for operation, with the exception of the periodic " load-run test" which is not required due to the limited redundancy of A.C. power sources.

3/4.9.C D.C. Sources - Operatina The station D.C. electrical power system provides the A.C. emergency power system with control power. It also provides both motive and control power to selected safety-related equipment.

During normal operation, the D.C. electrical loads are powered from the battery chargers with batteries floating on the system. In case of loss of normal power to the battery charger, the D.C.

load is automatically powered from the station batteries.

Each battery of the D.C. electrical power systems is sized to start and carry the normal D.C. loads plus all D.C. loads required for safe shutdown on one unit and operations required to limit the consequences of a design basis event on the other unit for a period of 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months following loss of all A.C. sources. The battery chargers are sized to restore the battery to full charge under normal (non-emergency) load conditions. A normally disconnected alternate 125 volt battery is also provided as a backup for each normal battery. If both units are operating, the normal 125 volt battery must be retumed to service within the specified time frame since the design configuration DRESDEN - UNITS 2 & 3 8 3/4.9-5 Amendment Nos. 138 & 132

.-. -.. ~. -. -.. - -

=

ELECTRICAL POWER SYSTEMS B 3/4.9 I

a BASES f

of the alternate battery circuit is susceptible to single failure and, hence, is not as reliable as the

[

normal station circuit. During times when the other unit is in a Cold Shutdown or Refuel condition, i-an alternate 125 volt battery is available to replace a normal station 125 volt battery on a.

L continuous basis to provide a second available power source. With the alternate 125 volt battery in service, the normally open breaker on the DC Reserve Bus is placed in the open position and j

posted, i.e., " tagged out."

1 l

-- With one of the required D.C. electrical power subsystems inoperable the remaining system has the capacity to support a safe shutdown and to mitigate an accident condition. However, a subsequent worst-case single failure would result in complete loss of ESF functions. Therefore, an

_ allowed outage time is provided based on a reasonable time to assess plant status as a function of t

the inoperable D.C. electrical power subsystem End, if the D.C. electrical power subsystem is not

- restored to OPERABLE status, prepare to effect an orderly and safe plant shutdown.

(

4 inoperable chargers do not necessarily indicate that the D.C. systems are not capable of perfo ming their post-accident functions as long as the batteries are within their specified l

parameter limits. With both the required charger inoperable and the battery degraded, prompt i

action is required to assure an adequate D.C. power supply.

i l

ACTION (s) are provided to delineate the measurements and time frames needed to continue to assure OPERABILITY of the Station batteries when battery parameters are outside their identified limits.

i Battery surveillance requirements are based on the defined battery cell parameter values. Category A defines the normal parameter limit for each designated pilot cell in each battery. The pilot cells are the average cells in the battery based on previous test results. These cells are monitored I:

closely as an indication of battery performance. Category B defines the normal parameter limits for each connected cell. The term " connected cell" excludes any battery cell that may be jumpered l

l out because of a degraded condition or for any other reason. Category B also defines allowable values for each connected cell. These values, although reduced, provide assurance that sufficient capacity exists to perform the intended function and maintain a margin of safety. When any i

battery parameter is outside the Category B allowable value, the assurance of sufficient capacity as described above no longer exists and the battery must be declared inoperable.

j Verifying battery terminal voltage while on float charge for the batteries helps to ensure the effectiveness of the charging system and the ability of the batteries to perform their intended l

l-function. The voltage requirements are based on the nominal design voltage of the battery and are consistent with the initial voltages assumed in the battery sizing calculations.

j Visualinspection to detect corrosion of the battery cells and connections, or measurement of the resistance of each connection provides an indication of physical damage or abnormal deterioration j

' that could potentially degrade battery performance. The limits established for this Surveillance j

Requirement shall be no more than 20% above the resistance as measured during installation or i

i not above the ceiling value established by the manufacturer.

)

i l

c l

DRESDEN - UNITS 2 & 3 B 3/4.9-6 Amendment Nos. 138 & 132 i

1 c

i 3

4 4

6 l

l

ELECTRICAL POWER SYSTEMS B 3/4.9 BASES Verifying an acceptable average temperature of representative cells is consistent with the-recommendations of IEEE-450 and ensures that lower than normal temperatures do not act to inhibit or reduce battery capacity.

Verifying that the chargers will provide the manufacturer's rated current and voltage for four hours ensures that charger deterioration has not occurred and that the charger will provide the necessary capacity to restore the battery to a fully charge

state.

d 1

A battery service test is a special test of the battery's capability "as found" to satisfy the design requirements of the D.C. electrical power system. The discharge rate and test length should correspond to the design duty cycle requirements.

A battery performance test is a test of constant current capacity of the battery to detect ar:y change in the capacity determined by the acceptance test. This test is intended to determine overall battery degradation due to age and usage. A battery capacity of 80% indicates that the battery rate of deterioration is increasing, even if there is ample capacity to meet the load requirements. However, if the design margins are more limiting, the acceptable limit is based on the latest load profile, d

3/4.9.D D.C. Sources - Shutdown The D.C. sources required to be OPERABLE during Cold Shutdown, Refueling, when handling irradiated fuel and during operations with a potential for draining the reactor vessel provide assurance that:

i 1.

Systems to provide adequate coolant inventory makeup are available for the irradiated fuel in the core in case of an inadvertent drain down of the reactor vessel; i

4 2.

Systems needed to mitigate a fuel-handling accident are available; 3.

Systems necessary to mitigate the effects of events that can lead to core damage during shutdown are OPERABLE; 4.

Instrumentation and control capability is available for monitoring and maintaining the unit in a cold shutdown condition and refueling condition.

With one or more of the required D.C. electrical power sources inoperable, the action provisions require a suspension of activities that will preclude the occurrence of actions that could potentially initiate the postulated events. However, timely suspension of these activities is not intended to preclude completion of actions necessary to establish a safe, conservative condition.

DRESDEN - UNITS 2 & 3 B 3/4.9-7 Amendment Nos. 138 & 132

-=.

-. -~-

(

ELECTRICAL POWER SYSTEMS B 3/4.9 f

BASES

[

3/4.9.E-Distribution - Operatina

-The OPERABILITY of the A.C. and D.'C. onsite power distribution systems ensures that sufficient a

i power'will be available to the' safety related equipment required for (1) the safe shutdown of the -

. facility and (2) the mitigation and control of accident conditions within the facility.

The surveillance requirements verify that the A.C. and D.C. electrical power distribution systems 1

-are functioning properly,.with all the required circuit breakers closed and the buses energized from -

normal power. The verification of proper voltage availability on the buses ensures that the required

power is readily available for motive as well as control functions for critical system loads connected to these buses. The frequency takes into account the redundant capability of the A.C.

I and D.C. electrical power distribution subsystems, and other indications available in the control l

1 room that will alert the operator to subsystem malfunctions, i

3/4.9.F Distribution - Shutdown The' OPERABILITY of the minimum specified A.C. and D.C. onsite power distribution systems, i

during Cold Shutdown and Refueling and when handling irradiated fuelin the secondary containment, ensures that the facility can be maintained in these conditions for extended time periods and sufficient instrumentation and control capability is available for monitoring and maintaining the unit status Requiring OPERABILITY of the minimum specified onsite power distribution systems when handling irradiated fuel in the secondary containment helps to ensure that systems needed to mitigate a fuel handling accident are available.

p 3/4.9.G RPS Power Monitorina 4

2' Specifications are provided to ensure the OPERABILITY of the reactor protection system (RPS) bus electrical protection assemblies (EPAs). Each RPS mo' or generator (MG) set and the alternate power source has 2 EPA CHANNEL (s) wired in serie". A trip of either CHANNEL from either overvoltage, undervoltage, or underfrequency will disconnect the associated MG set or alternate 4

power source.

The associated surveillance requirements provide for demonstration of the OPERABILITY of the RPS EPA's. The setpoints for overvoltage, undervoltage, and underfrequency have been chosen based on analysis (ref. February 4,1983 letter to H. Denton from T. Rausch).

1 I

4.

DRE'SDEN - UNITS 2 & 3-B 3/4.9-8 Amendment Nos. 138 & 132 y

O, i

p

l pa "84 UNITED STATES g

g j

NUCLEAR REGULATORY COMMISSION

. WASHINGTON, D.C. 20556-0001 e

g.

COMMONWEALTH EDIS0N COMPANY AND MIDAMERICAN ENERGY COMPANY DOCKET N0. 50-254 00AD CITIES NUCLEAR POWER STATION. UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 160 License No. DPR-29 1.

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

A.

The application for amendment by the Commonwealth Edison Company (the licensee) dated March 26, 1993, as supplemented May 15, 1995, 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 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 l

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 3.B. of Facility Operating License No. DPR-29 is hereby amended to read as follows:

4 I

r.

1

. B.

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 sha~1 mperate the facility in accordance with the Technical Specifier ions.

3.

This license amendment is effective as of the date of its issuance and shall be implemented no later than June 30, 1996.

FOR THE NUCLEAR REGULATORY COMMISSION

()b Robert M. Pulsif Project Manager Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

Attachment:

Changes tc the Technical Specifications Date of Issuance:

September 18, 1995 l

J I

i

9***

9

.p UNITED STATES l

g

[

NUCLEAR REGULATORY COMMISSION e

WASHINGTON, D.C. 200664001 i

e% *****p$

COMMONWEALTH EDISON COMPANY 4

m MIDAMERICAN ENERGY COMPANY i

DOCKET NO. 50-265 l

OVAD CITIES NUCLEAR POWER STATI0fi. UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE I

i bPR-30 i

e o 1.

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

A.

The application for amendment by the Comonwealth Edison Company

]

(the licensee) dated March 26, 1993, as supplemented May 15, 1995, 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 (i) that the activities authorized

]

by this amendment can be conducted without endangering the health 1

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 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 3.B. of Facility Operating License No. DPR-30 is hereby amended to read as follows-

)

1 j

. B.

Technical Soecifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No.156, are hereby incorporated in the license. The licensee shall operate the facility in accordance with the Technical Specifications.

3.

This license amendment is effective as of the date of its issuance and shall be implemented no later than June 30, 1996.

FOR THE NUCLEAR REGULATORY COMMISSION

/

s Robert M. Pulsife, Project Manager Project Directorate III-2 Division of Reactor Projects - III/IV Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance: September 18, 1995

)

i t

J

ATTACHMENT TO LICENSE AMENDMENT NO.

160 AND 156 FACILITY OPERATING LICENSE NOS. DPR-29 AND DPR-30 DOCKET NOS. 50-254 AND 50-265 Revise the Appendix A Technical Specifications by removing the pages identified below and inserting the attached pages. The revised pages are identified by the captioned amendment number.

UNIT 1 UNIT 2 REMOVE REMOVE INSERT 3.9/4.9-1 3.9/4.9-1 3/4.9-1 3.9/4.9-2 3.9/4.9-2 3/4.9-2 3.9/4.9-3 3.9/4.9-3 3/4.9-3 3/4.9-4 3.9/4.9-3a 3.9/4.9-4 3.9/4.9-4 3/4.9-5 3.9/4.9-5 3.9/4.9-5 3/4.9-6 3.9/4.9-6 3.9/4.9-6 3/4.9-7 3.9/4.9-7 3.9/4.9-7 3/4.9-8 3.9/4.9-8 3.9/4.9-8 3/4.9-9 3.9/4.9-9 3.9/4.9-9 3/4.9-10 3.9/4.9-10 3.9/4.9-10 3/4.9-11 l

3.9/4.9-11 3.9/4.9-11 3/4.9-12 i

3.9/4.9-12 3.9/4.9-12 3/4.9-13 3/4.9-14 3/4.9-15 3/4.9-16 3/4.9-17 3/4.9-18 3/4.9-19 3/4.9-20 3/4.9-21 B 3/4.9-1 l

B 3/4.9-2 B 3/4.9-3 B 3/4.9-4 l

B 3/4.9-5 i

B 3/4.9-6 B 3/4.9-7 B 3/4.9-8

\\

ELECTRICAL POWER SYSTEMS A.C. Sources - Operating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS A. A.C. Sources - Operating A.

A.C Sources - Operating As a minimum, the following A.C. electrical 1.

Each of the required independent power sources shall be OPERABLE:

circuits between the offsite transmission network and the onsite 1.

Two physically independent circuits Class 1E distribution system shall be between the offsite transmission determined OPERABLE:

network and the onsite Class 1E distribution system, and a.

At least once per 7 days by verifying correct breaker 2.

Two separate and independent diesel alignments and indicated power generators, each with:

availability, and a.

A separate fuel oil day tank b.

[ INTENTIONALLY BLANK) containing 2205 gallons of This requirement is an open available fuel, item to be addressed in the TSUP clean-up amendment b.

A separate bulk fuel storage system containing 210,000 gallons 2.

Each of the required diesel generators of available fuel, and shall be demonstrated OPERABLE

in accordance with the frequency c.

A separate fuel oil transfer pump.

specified in Table 4.9.A-1 by; a.

Verifying the fuel levels in both the APPLICABILITY:

fuel oil day tank and the bulk fuel storage tank.

OPERATIONAL MODE (s) 1, 2, and 3.

b.

Verifying the fuel transfer pump starts and transfers fuel from the ACTION:

bulk fuel storage system to the fuel oil day tank.

j 1.

With one of the above required offsite circuit power sources inoperable:

a.

Demonstrate the OPERABILITY of the remaining offsite circuit by performing Surveillance Requirement 4.9.A.1.a within 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

a All planned diesel enerator tetts shall be conducted in accordance with the manufacturer's recommendations regarding engine prelubs les deaction and warmup procedures, and as applicable regarding loading and shutdown recommendations.

t OUAD CITIES - UNITS 1 & 2 3/4.9-1 Amendment Nos. 160&156l 4

ELECTRICAL POWER SYSTEMS A.C. Sourcss - Op2 rating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS id the diesel starts and b.

Demonstrate the OPERABILITY of c.

Verifying each diesel generator by accelerates to synchronous speed performing Surveillance with generator voltage and Requirement 4.9.A.2.c for each frequency at 4160 *420 volts and diesel generator separately within 60

1.2 Hz, respectively.

24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months (if it has not been successfully tested within the past d.

Verifying the diesel generator is id synchronized, loaded to between 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) and within the subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and 2375 and 2500 kWi* and operates with this load for 260 minutes.

c.

Restore the inoperable offsite circuit to OPERABLE status within e.

Verifying the diesel generator is 7 days or be in at least HOT aligned to provide standby power SHUTDOWN within the next to the associated emergency 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN busses.

within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

f.

Verifying the pressure in required 2.

With one of the above required diesel starting air receiver tanks to be generator power sources inoperable:

2230 psig.

a.

Demonstrate the OPERABILITY of 3.

Each of the required diesel generators the offsite circuit power sources by shall be demonstrated OPERABLE at performing Surveillance least once per 31 days and after each Requirement 4.9.A.1.a within operation of the diesel where the period i

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per of operation was 21 hour2.430556e-4 days 0.00583 hours 3.472222e-5 weeks 7.9905e-6 months by removing i

8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter, any accumulated water from the day

tank, b.

If the diesel generator is inoperable due to any cause other than 4.

Each of the required diesel generators l

preplanned preventive maintenance shall be demonstrated OPERABLE at or testing, demonstrate the least once per 92 days by checking for OPERABILITY of the remaining and removing accumulated water from OPERABLE diesel generator by the fuel oil bulk storage tanks.

j performing Surveillance i

Requirement 4.9.A.2.c within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months " (if it has not been successfully tested within the past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) and within the j

subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , and

{

b Contrary to the provisions of Specification 3.0.B this test is required to be completed regardless of when the inoperable diesel generator is restored to OPERABILITY for failures that are potentially generic to the remaining diesel j

generator and for which appropriate alternative testing cannot be designed.

]

c Surveillance Requirements 4.9.A.7.a and b may be substituted for Surveillance Requirements 4.9.A.2.c and d.

d This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring by the manufacturer or momentary variations due to changing bus loads shall not I

invalidate the test.

QUAD CITIES - UNITS 1 & 2 3/4.9 2 Amendment Nos. 160&156l

ELECTRICAL POWER SYSTEMS A.C. Sourc::s - Operating 3/4.9.A 1

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS i

c.

Restore the diesel generator to 5.

Each of the required diesel generators OPERABLE status within 7 days or shall be demonstrated OPERABLE by:

be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in a.

Sampling new fuel oil prior to COLD SHUTDOWN within the addition to the storage tanks in following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , accordance with applicable ASTM standards, and i

3.

With one of the above offsite circuit power sources and one of the above b.

Verifying prior to addition to the required diesel generator power sources storage tanks that the sample inoperable:

meets the applicable ASTM standards for API gravity, water a.

Demonstrate the OPERABILITY of and sediment, and the visual test the remaining offsite circuit power for free water and particulate source by performing Surveillance contamination *, and Requirement 4.9.A.1.a within j

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per c.

Verifying within 31 days of 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

obtaining the sample that the kinematic viscosity is within b.

If the diesel generator is inoperable applicable ASTM limits.

due to any cause other than preplanned preventive maintenance 6.

Each of the required diesel generators or testing, demonstrate the shall be demonstrated OPERABLE by:

OPERABILITY'd of the remaining OPERABLE diesel generator by a.

Sampling and analyzing the bulk performing Surveillance fuel storage tanks at least once per Requirement 4.9.A.2.c* within 31 days in accordance with 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months (if it has not been applicable ASTM standards, and successfully tested within the past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ) and within the b.

Verifying that the sample meets subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months for each the applicable ASTM standards for OPERABLE diesel generator.

water and sediment, kinematic viscosity, and ASTM particulate i

c.

Restore at least one of the contaminant

is < 10 rng/ liter.

inoperable A.C. power sources to OPERABLE status within 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months or be in at least HOT SHUTDOWN e

A successful test of OPERABILITY per Surveillance Requirement 4.9.A.2.c under this ACTION statement satisfies the

- diesel generator test requirements of ACTION (s) 1 or 2 above, b

Contrary to the provisions of Specification 3.0 B, this test is required to be completed regardless of when the inoperable diesel generator is restored to OPERA BILITY for failures that are potentially generic to the remaining diesel generator and for which appropriate altemative testing cannot be designed.

i The particulate contamination surveillance is not required for No.1 fuel oil. It is required for No. 2 fuel oil and for blends.

QUAD CITIES - UNITS 1 & 2 3/4.9-3 Amendment Nos. 160 & 156

ELECTRICAL POWER SYSTEMS A.C. Sourcss - Op; rating 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in 7.

Each of the required diesel generators COLD SHUTDOWN within the shall be demonstrated OPERABLE'd at following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , and least once per 184 days by:

d.

Restore both offsite circuits and a.

Verifying'd the diesel starts and both diesel generators to accelerates to synchronous speed OPERABLE status within 7 days in 513 seconds. The generator from the time of the initialloss or.

voltage and frequency shall be be in at least HOT SHUTDOWN verified to reach 4160 420 volts within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in and 60 1.2 Hz, respectively, in i

COLD SHUTDOWN within the 513 seconds after the start signal.

following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

b.

Verifying'd the diesel generator is 4.

With one of the above required diesel synchronized, loaded to between generator power sources inoperable, in 2375 and 2500 kW(* in $200 addition to ACTION 2 or 3, as seconds, and operates with this applicable:

load for it60 minutes, a.

Verify within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months that at least 8.

Each of the required diesel generators one of the required two systems, shall be demonstrated OPERABLE'd at subsystems, trains, components least once per 18 months by:

and devices in two train systems is OPERABLE including its emergency a.

Subjecting the diesel to an power supply, inspection in accordance with instructions prepared in conjunction b.

Otherwise, take the applicable with its manufacturer's ACTIONS for both systems, recommendations for this class of subsystems, trains, components or standby service.

devices inoperable, or be in at least HOT SHUTDOWN within the next 2

12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

4 a

All planned diesel generator tests shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube, leak detection and warmup procedures, and as applicable regarding loading and shutdown recommendations.

c Surveillance Requirements 4.9.A 7.a and b may be substituted for Surveillance Requirements 4.9.A.2.c and d.

d This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring by the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

QUAD CITIES - UNITS 1 & 2 3/4.9-4 Amendment Nos. 160 & 156 (

ELECTRICAL POWER SYSTEMS A.C. Sourcss - Operating 3/4.9.A i

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS 5.

With two of the above required offsite b.

[ INTENTIONALLY BLANK) circuit power sources inoperable:

This requirement is an open a.

Demonstrate the OPERABILITY

of item to be addessed in the both of the above required diesel TSUP clean-up amendment generators separately by performing Surveillance Requirement 4.9.A.2.c within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months (if it has not been i

successfully tested within the past c.

Verifying the diesel generator 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months ), unless the diesel capability to reject a full emergency generators are already operating, load without tripping. The and within the subsequent generator voltage shall not exceed 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months .

5000 volts during or following the load rejection.

b.

Restore at least one of the inoperable offsite circuits to d.

Simulating a loss of offsite power OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months by itself, and:

or be in at least HOT SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and

1) Verifying de-energization of the within COLD SHUTDOWN within emergency buses, and load the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

shedding from the emergency buses.

c.

Restore at least two offsite circuits to OPERABLE status within 7 days

2) Verifying the diesel starts on from the time of initial loss or be in the auto-start signal, energizes at least HOT SHUTDOWN within the emergency buses with the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD permanently connected loads SHUTDOWN within the following in s13 seconds, energizes the 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

auto-connected shutdown loads, and operates with this 6.

With both of the above required diesel load for 25 minutes. After generator power sources inoperable:

energization, the steady-state voltage and frequency of the a.

Demon?trete the OPERABILITY of emergency busses shall be the offsite circuit power sources by maintained at 4160 t420 performing Surveillance volts and 60 i1.2 Hz, Requirement 4.9.A.1.a within respectively, during this test.

1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

l e

A successful test of OPERABILITY per Surveillance Requirement 4.9.A.2.c under this ACTION statement satisfies the i

diesel generator test requirements of ACTION (s) 1 or 2 above.

' QUAD CITIES - UNITS 1 & 2 3/4.9-5 Amendment Nos. 160 & 156 I

---_-c-

ELECTRICAL POWER SYSTEMS A.C. Snurcss - Opsr: ting 3/4.9.A 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS l

b.

Within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , restore at least one e.

Verifying that on an ECCS of the above required diesel actuation test signal, without loss generators to OPERABLE

status of offsite power, the diesel and verify that at least one of the generator starts on the auto-start required two systems, subsystems, signal and operates on standby for trains, components and devices in 25 minutes. The generator voltage two train systems is OPERABLE and frequency shall be 4160 2420 -

volts and 60.i1.2 Hz, including its emergency power supply. Otherwise, take the respectively, in 513 seconds after applicable ACTIONS for both the auto-start signal; the steady systems, subsystems, trains, state generator voltage and components or devices inoperable, frequency shall be maintained or be in at least HOT SHUTDOWN within these limits during this test.

within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN within the f.

Simulating a loss of offsite power following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

in conjunction with an ECCS actuation test signal, and c.

Demonstrate the continued OPERABILITY of the restored diesel

1) Verifying de-energization of the generator by performing emergency buses, and load Surveillance Requirement 4.9.A.2.c shedding from the emergency within the subsequent 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months , buses.

and

2) V9tifying the diesel starts on d.

Restore at least two required diesel the auto-start signal, energizes generators to OPERABLE status the emergency buses with within 7 days from the time of permanently connected loads initial loss or be in at least HOT in s13 seconds, energizes the SHUTDOWN within the next auto-connected emergency 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in COLD SHUTDOWN loads through the load within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , sequencer, and operates with this load for 25 minutes. After 7.

With the fuel oil contained in the bulk energization, the steady-state fuel storage tank (s) not meeting the voltage and frequency of the properties specified in Surveillance emergency busses shall be Requrements 4.9.A.5 and 4.9.A.6, maintained at 4160 420 restore the fuel oil properties to within volts and 60 i1.2 Hz, the specified limits within 7 days.

respectively, during this test.

Otherwise, declare the associated diesel generator (s) inoperable.

e A successful test of OPERABILITY per Surveillance Requirement 4.9.A.2.c under this ACTION statement satisfies the diesel generator test requirements of ACTION (s) 1 or 2 above.

QUAD CITIES - UNITS 1 & 2 3/4.9-6 Amendment Nos. 160 & 156

ELECTRICAL POWER SYSTEMS A.C. Sources - Operating 3/4.9.A 3.9 LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS 8.

[ INTENTIONALLY BLANK) g.

Verifying that all automatic diesel This requirement is an open generator trips, except engine item to be addressed in the overcpeed and generator TSUP clean-up amendment differential current are automatically bypassed upon an emergency actuation signal.

h.

Verifying the diesel generator operates for 224 hours0.00259 days 0.0622 hours 3.703704e-4 weeks 8.5232e-5 months . During the first 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months of this test, the diesel generator shall be loaded to between 2625 and 2750 kWS' and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the diesel generator shall be loaded to between 2375 and 2500 kWS'. The generator voltage and frequency shall be 4160 420 volts and 60 1.2 Hz, respectively, in $13 seconds after the start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test. Within 5 minutes after completing this 24 hour2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months test, perform Surveillance Requirement 4.9. A.8 f.2'8'.

i.

Verifying that the auto-connected loads to each diesel generator do 1

not exceed the 2000 hour0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months rating of 2850 kW.

f Criteria for determining the number of valid failures and number of valid tests shall be in accordance with draft Revision 3 of Regulatory Guide 1.9. January 1991, but determined on a per diesel generator basis. With the exception of the semi-annual fast start, no starting time requirements are required to meet the valid test requirements, d

This band is meant as guidance to avoid routine overloading of the engine. Loads in excess of this band for special testing under direct monitoring by the manufacturer or momentary varithons due to changing bus loads shall not invalidate the test, g

If Surveillance Requirement 4.9.A.8.f.2 is not satisfactorily completed, it is not necessary to repeat the preceding 24 hout test. Instead, the diesel generator may be operated at approximately full load for 1 hour1.157407e-5 days 2.777778e-4 hours 1.653439e-6 weeks 3.805e-7 months or until the operating temperature has stabilized.

QUAD CITIES - UNITS 1 & 2 3/4.9 7 Amendment Nos. 160 & 156

ELECTRICAL POWER SYSTEMS A.C. Sourcss - Optrating 3/4.9.A 4

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS j.

Verifying the diesel generator's capability to:

1) synchronize with the offsite

.n:,wer source while the generator is loaded with its emergency loads upon a j

simulated restoration of offsite

power,

2) transfer its loads to the offsite power source, and

3) be restored to its standby status.

k.

Verifying that the automatic load sequence timer is OPERABLE with the interval between each load block within 10% of its design interval.

9.

Each of the required diesel generators shall be demonstrated OPERABLE'" at least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel generators simultaneously, and verifying that both diesel generators accelerate to 2900 rpm in

$13 seconds.

10. Each of the required diesel generators shall be demonstrated OPERABLE at l

least once per 10 years by draining each fuel oi! storage tank, removing the accumulated sediment and cleaning the l

tank.

a All planned diesel generator tests shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube, leak detection and warmup procedures, and as applicable regarding loading and shutdown recommendations.

QUAD CITIES - UNITS 1 & 2 3/4.9-8 Amendment Nos. 160 & 156

' ELECTRICAL POWER SYSTEMS A.C. Sourcss - Operating 3/4.9. A TABLE 4.9. A-1 DIESEL GENERATOR TEST SCHEDULE NUMBER OF FAILURES IN LAST 20 VAllD TESTSM TEST FREQUENCY 51 At least onca per 31 days 52*'

At least once per 7 days t

i

.l f

n t

4 i

n Criteria for determining the number of valid failures and number of valid tests shall be in accordance with draft a

Revision 3 of Regulatory Guide 1.9, January 1991, but determined on a per diesel generator basis. With the exception of the semi-annual fast start, no starting time requirements are required to meet the valid test requirements.

b The associated test frequency shall be maintained until 7 consecutive failure free demands have been performed AND the number of failures in the last 20 valid demands has been reduced to one.

QUAD CITIES - UNITS 1 & 2 3/4.9 9 Amendment Nos. 160 & 156

4

[

ELECTRICAL POWER SYSTEMS A.C. Sourcss - Shutdown 3/4.9.B 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS B.

A.C. Sources - Shutdown B.

A.C Sources - Shutdown As a minimum, the following A.C. electrical Each of the required A.C. electrical power power sources shall be OPERABLE:

sources shall be demonstrated OPERABLE i

per the surveillance requirements in

1. - One circuit between the offsite Specification 4.9.A, except for 4.9.A.2.d.

transmission network and the onsite Class 1E distribution system, and i

2.

One diesel generator with:

a.

A fuel oil day tank containing 2205 gallons of available fuel, b.

A bulk fuel storage system containing 210,000 gallons of available fuel, and c.

A fuel oil transfer pump.

j

?

APPLICABILITY:

OPERATIONAL MODE (s) 4 and 5, and when handling irradiated fuelin the secondary containment.

ACTION:

1.

With less than the above required A.C.

electrical power sources OPERABLE:

{

a.

Suspend CORE ALTERATIONS, b.

Suspend handling of irradiated fuel in the secondary containment, c.

Suspend operations with a potential for draining the reactor vessel, and i

QUAD CITIES - UNITS 1 & 2 3/4.9-10 Amendment Nos. 160 & 156 i

s'

s ELECTRICAL POWER SYSTEMS A.C. Sourcrs - Shutdown 3/4.9.B 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS d.

Suspend crane operations over the spent fuel storage poolif fuel assemblies are stored therein.

2.

In addition, when in OPERATIONAL MODE 5 with the water level <23 feet above the reactor pressure vessel flange, immediately initiate corrective action to restore the required power sources to OPERABLE status as soon as practical.

3.

The provisions of Specification 3.0.C are not applicable.

l i

1 i

1 J

l 2

1 QUAD CITIES - UNITS 1 & 2 3/4.9-11 Amendment Nos.160 & 156

i ELECTRICAL POWER SYSTEMS D.C. Sourcss - Operating 3/4.9.C l

t 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS C.

D.C. Sources Operating C.

D.C. Sources - Operating As a minimum, the following D.C. electrical Each of the required 125 volt and 250 volt power sources shall be OPERABLE with the batteries and chargers shall be identified parameters within the limits demonstrated OPERABLE'd:

sp'ecified in Table 4.9.C-1:

1.

At least once per 7 days by verifying 1.

Two station 250 volt batteries, that:

l each with a full capacity charger.

i a.

The parameters in Table 4.9.C-1 2.

Two station 125 volt batteries, meet Category A limits, and each with a full capacity charger.

b.

There is correct breaker alignment to the battery chargers and total APPLICABillTY:

battery terminal voltage is 2125.9 or 2260.4 volts, as applicable, on OPERATIONAL MODE (s) 1,2, and 3.

float charge.

2.

At least once per 92 days and within ACTION:

7 days after a battery discharge with a battery terminal voltage below 105 or 4

210 volts, as applicable, or battery I. [ INTENTIONALLY BLANK]

overcharge with battery terminal voltage above 150 or 300 volts, as This requirement is an open applicable, by verifying that:

item to be addressed in the 4

TSUP clean-up amendment a.

The parameters in Table 4.9 C-1 meet the Categ) y B limits,

2. [ INTENTIONALLY BLANK]

b.

There is no visible corrosion at This requirement is an open item to be addressed in the either terminals or connectors, or TSUP clean-up amendment the connection resistance of these items is s150 x10-8 ohms or $20%

4 above baseline connection i

resistance, whichever is higher, and c.

[ INTENTIONALLY BLANK)

I i

i An alternate 125 voit battery shall adhere to these same Surveillance Requirements to be considered OPERABLE.

a j

QUAD CITIES - UNITS 1 & 2 3/4.9 12 Amendment Nos. 160 & 156 f

.~

ELECTRICAL POWER SYSTEMS D.C. Sourcss - Opsrating 3/4.9.C 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS 3.

With the provisions of either ACTION 1 3.

At least every 18 months by verifying or 2 above not met, be in at least HOT that:

SHUTDOWN within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months l

and in COLD SHUTDOWN within the a.

The cells, cell plates and battery following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

racks show no visual indication of l

physical damage or abnormal J

4.

With any Category A parameter (s) deterioration.

j outside the limit (s) shown in Table l

.4.9.C-1, the battery may be considered b.

The cell-to-cell and terminal i

OPERABLE provided that its associated connections are clean, tight, free of j

charger is OPERABLE, and within 24 corrosion and coated with i

hours all the Category B measurements anti-corrosion material.

are taken and found to be within their allowable values, and provided all c.

The resistance of each cell-to-cell i

Category A and B parameter (s) are and terminal connection is restored to within limits within the next

$150 x104 ohms or 520% above 6 days.

baseline connection resistance, whichever is higher.

5.

With any Category B parameter (s) j outside the limit (s) shown in Table d.

The battery chargers will supply a 4.9.C-1, the battery may be considered load equal to the manufacturer's OPERABLE provided that the Category rating for at least 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months .

B parameters are within their allowable l

values and provided the Category B 4.

At least every 18 months, by verifying i

parameter (s) are restored to within the that the battery capacity is adequate to limit (s) within 7 days.

supply and maintain in OPERABLE status all of the actual or simulated f

6.

With any Category B parameter not.

emergency loads for design duty cycle i

within its allowable value(s),

when the battery is subjected to a 4

immediately declare the battery battery service test.

inoperable.

5.

[ INTENTIONALLY BLANK]

k This requirement is an open item to be addessed in the j

TSUP clean-up amendment i

2 i

t i

4 i

QUAD CITIES - UNITS 1 & 2 3/4.9-13 Amendment Nos. 160 & 156 i

4 4

,+

.r, w

. +.

.~.

ELECTRICAL POWER SYSTEMS D.C. Sourcss - Op: rating 3/4.9.C 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS i

6.

[ INTENTIONALLY BLANK]

This requirement is an open item to be addressed in the TSUP clean-up amendment 1

l i

s J

1 4

i h

9 1

l I

I l'

4 i

e 1

OUAD CITIES - UNITS 1 & 2 3/4.9 14 Amendment Nos. 160 8 156' i

i,

ELECTRICAL POWER SYSTEMS D.C. Sourcss - Optrating 3/4.9.C 4

d TABLE 4.9.C-1 4

l BATTERY SURVEILLANCE REQUIREMENTS i

i CATEGORY A CATEGORY B PARAMETER LIMITS FOR EACH LIMITS FOR EACH ALLOWABLE VALUE DESIGNATED PILOT CONNECTED CELL FOR EACH CELL CONNECTED CELL Electrolyte Level

> Minimum level

> Minimum level Above top of plates, l

indication mark, and indication mark, and and not overflowing s%" above maximum s%" above maximum l!

level indication mark level indication mark Float Voltage 22.13 volts 22.13 volts'*

22.07 volts t-Specific Gravity'*

21.200(6' 21.195, and Not more than 0.020 below the average of all 3

connected cells, and f

Average of all Average of all connected cells connected cells

> 1.205'*)

21.195'*)

4

[

TABLE NOTATIONS i

4 (a) Corrected for electrolyte temperature and level.

1 (b) Or battery charging current is less than 2 amperes when on float charge.

I a

(c) May be corrected for average electrolyte temperature.

1 J

i

- QUAD CITIES - UNITS 1 & 2 3/4.9-15 Amendment Nos. 160 & 156

+

4 e.

n n

~.

. ~..-.... -

ELECTRICAL POWER SYSTEMS D.C. S::urets - Shutdown 3/4.9.D 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS D.

D.C. Sources - Shutdown D.

D.C. Sources - Shutdown As a minimum, the following D.C. electrical The required batteries and chargers shall be power sources shall be OPERABLE:

demonstrated OPERABLE"' per the surveillance requirements in Specification 4.9.C.

1.

One station 250 volt battery with a full capacity charger.

2.

One station 125 volt battery with a full capacity charger.

t APPLICABILITY:

OPERATIONAL MODE (s) 4 and 5, and when handling irradiated fuelin the secondary containment.

ACTION:

With any of the above required station batteries and/or associated charger (s) inoperable, suspend CORE ALTERATIONS, suspend handling of irradiated fuel in the secondary containment, and suspend operations with a potential for draining the reactor vessel.

t a

An attemate 125 voit battery shall adhere to these same Surveillance Requirements to be considered OPERABLE.

QUAD CITIES - UNITS 1 & 2 3/4.9-16 Amendment Nos. 160 & 156 I

t ELECTRICAL POWER SYSTEMS Distributi:n - Opsrating 3/4.9.E

.3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS q

E. ~ Distribution - Operating E.

Distribution - Operating The following power distribution systems Each of the required power distribution shall be energized with tie breakers open system divisions shall be determined -

both between redundant buses within the energized at least once per 7 days by unit and between units at the same station:

verifying correct breaker alignment and voltage on the busses /MCCs/ panels.

4 1.

A.C. power distribution, consisting of:

a.

Both Unit engineered safety i

features 4160 volt buses:

1) For Unit 1, Nos.13-1 and 14-1, 1

i

2) For Unit 2, Nos. 23-1 and 24-1.

b.

Both Unit engineered safety.

features 480 volt buses:

i

1) For Unit 1, Nos.18 and 19,-

i

2) For Unit 2, Nos. 28 and 29, and a

c.

The Unit 120 volt Essential Service I

Bus and instrument Bus.

1.

2.

250 volt D.C. power distribution, consisting of:

1 i

a.

TB MCC Nos.1 and 2, and l

b.

1) For Unit 1, RB MCC Nos.1 A and 18,

2) For Unit 2, RB MCC Nos. 2A and 28, 3.

For Unit 1,125 voit D.C. power distribution, consisting of:

a.

TB Main Bus Nos.1 A,1 A 1 1

and 2A, b.

TB Reserve Bus Nos.1B and 1B-1, and c.

RB Distribution Panel No.1.

QUAD CITIES - UNITS 1 & 2 3/4.9-17 Amendment Nos. 160 & 156 4

4 4

1

~_

ELECTRICAL' POWER SYSTEMS Distribution - Operating 3/4.9.E t

' 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS

4. ' For Unit 2,125 volt D.C. power distribution, consisting of:

a.

TB Main Bus Nos.1 A,2A and 2A-1, b.

TB Reserve Bus Nos. 2B and 2B-1, and c.

RB Distribution Panel No. 2.

APPLICABILITY:

OPERATIONAL MODE (s) 1,2, and 3.

4 ACTIONS:

1.

With one of the above required A.C.

distribution systems not energized, re-energize the system within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months or be in at least Hot Shutdown within

.the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in Cold Shutdown within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , 2

2.

With one of the above required D.C.

i distribution systems not energized, re-energize the system within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least Hot Shutdown within the next 12 hours1.388889e-4 days 0.00333 hours 1.984127e-5 weeks 4.566e-6 months and in Cold Shutdown within the following 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months .

4 i

. QUAD CITIES - UNITS 1 & 2 3/4.9-18 Amendment Nos. 160 & 156

ELECTRICAL POWER SYSTEMS Distribution - Shutdown 3/4.9.F 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS F.

Distribution - Shutdown F.

Distribution - Shutdown The following power distribution systems Each of the required power distribution shall be energized with:

system divisions shall be determined energized at least once per 7 days by 1.

A.C. power distribution consisting of:

verifying correct breaker alignment and voltage on the busses /MCCs/ panels.

a.

One Unit engineered safety features 4160 volt bus:

1) For Unit 1, No.13-1 or 14-1,

2) For Unit 2, No. 23-1 or 24-1, b.

One associated Unit engineered safety features 480 volt bus:

1) For Unit 1, No.18 or 19,

2) For Unit 2, No. 28 or 29.

2.

For Unit 1,125 volt D.C. power distribution consisting of either.

a.

TB Main Bus No.1 A and 1 A-1, and RB Distribution Panel No.1, or b.

TB Main Bus No. 2A, and TB Reserve Bus Nos.18 and 1B-1.

3.

For Unit 2,125 volt D.C. power distribution consisting of either:

1 a.

TB Main Bus Nos. 2A and 2A-1, and RB Distribution Panel No. 2, or b.

TB Main Bus No.1 A, and TB Reserve Bus Nos. 2B and 2B-1.

APPLICABILITY:

OPERATIONAL MODE (s) 4, 5, and when handling irradiated fuelin the secondary containment.

QUAD CITIES - UNITS 1 & 2 3/4.9-19 Amendment Nos. 160 & 156

ELECTRICAL POWER SYSTEMS Distributian - Shutdown 3/4.9.F i

' 3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS i

ACTIONS:

With less than the above required A.C. or '

i D.C. distribution systems energized, suspend CORE ALTERATIONS, suspend 4

i handling of irradiated fuel in the secondary containment, and suspend operations with a potential for draining the reactor vessel.

i l

4 b

l i

4 4

i 1

QUAD CITIES - UNITS 1 & 2 3/4.9-20 Amendment Nos. 160 & 156

i-

. ELECTRICAL POWER SYSTEMS RPS Powsr Monitoring 3/4.9.G i

3.9 - LIMITING CONDITIONS FOR OPERATION 4.9 - SURVEILLANCE REQUIREMENTS G. RPS Power Monitoring G. RPS Power Monitoring Two Reactor Protection System (RPS)

The specified RPS electric power monitoring electric power monitoring CHANNEL (s) for CHANNEL (s) shall be determined OPERABLE:

each inservice RPS Motor Generator (MG) set or alternate power supply shall be 1.

By performance of a CHANNEL OPERABLE.

FUNCTIONAL TEST each time the plant is in COLD SHUTDOWN for a period of more than 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , unless performed APPLICABILITY:

in the previous 6 months.

OPERATIONAL MODE (s) 1, 2, 3, 4* and 5.

2.

At least once per 18 months by demonstrating the OPERABILITY of overvoltage, undervoltage, and ACTION:

underfrequency protective instrumentation by performance of a 1.

With one RPS electric power monitoring CHANNEL CAllBRATION including CHANNEL for an inservice RPS MG set simulated automatic actuation of the or alternate power supply inoperable, protective relays, tripping logic, and restore the inoperable power monitoring output circuit breakers, and verifying CHANNEL to OPERABLE status within the following setpoints:

72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or remove the associated RPS MG set or alternate power supply from a.

Overvoltage 5129.6 volts AC service.

b.

Undervoltage 2105.3 volts AC 2.

With both RPS electric power monitoring CHANNEL (s) for an c.

Underfrequency 255.4 Hz inservice RPS MG set or alternate power supply inoperable, restore at least one electric power monitoring CHANNEL to OPERABLE status within 30 minutes or remove the associated RPS MG set or alternate power supply from service.

a With any control rod withdrawn.

QUAD CITIES - UNITS 1 & 2 -

3/4.9-21 Amendment Nos.160 & 156

ELECTRICAL POWER SYSTEMS B 3/4.9 j

BASES e

' The initial conditions of design basis transient and accident analyses assume Engineering Safety Features (ESF) systems are OPERABLE. The A.C. and D.C. electrical power sources are designed

[

to provide sufficient capacity, capability, redundancy, and reliability to ensure the availability of necessary power to ESF systems so that the fuel, reactor coolant system and containment design limits are not exceeded.

1 j

The A.C. and D.C. sources are designed to perrhit inspection and testing of allimportant areas and q

features, especially those that have a standby function. ' Periodic component tests are i

supplemented by extensive functional testing during refueling outages under simulated accident conditions.

I 1

i-l 3/4.9.A A.C. Sources - Operatina i

l The OPERABILITY of the A.C. electrical power sources is consistent with the initial assumptions of the accident analyses and is based upon meeting the design basis of the plant. This includes i

maintaining at least one of the onsite or offsite A.C. sources, D.C. power sources and associated l

distribution systems OPERABLE during accident conditions concurrent with an assumed loss of all

)

offsite power and a worst-case single failure.

)

There are two sources of electrical energy available, i.e., the offsite transmission system and the onsite diesel generators. Two unit reserve auxiliary transformers are available to supply the Station class 1E distribution system. The reserve auxiliary transformer is sized to carry 100% of the auxiliary load. If this reserve auxiliary transformer (the normal circuit) is lost, auxiliary power from the other unit can be obtained for one division through the 4160 voit bus tie (the alternate circuit). Additionally, two diesel generators are available to handle an accident. The allowable outage time takes into account the capacity and capability of the remaining A.C. sources, reasonable time for repairs, and the low probability of a design basis accident occurring during this period. Surveillance is required to ensure a highly reliable power source and no common cause failure mode for the remaining required offsite A.C. source.

Upon failure of one diesel generator, performance of appropriate surveillance requirements ensures a highly reliable power supply by checking the availability of the required offsite circuits, and the i

remaining required diesel generator. The initial surveillance is required to be completed regardless of how long the diesel inoperability persists, since the intent is that all diesel generator inoperabilities must be investigated for common cause failures. After the initial surveillance, an additional start test is required approximately mid-way through the allowed outage time to demonstrate continued OPERABILITY of the available onsite power sources. The diesel generator surveillance is limited to the normal start testing, since for cases in which less than a full L

complement of A.C.' sources may be available, paralleling of two of the remaining A.C. sources may compromise the A.C. source independence. Additionally, the action provisions ensure that continued plant operation is not allowed when a complete loss of a required safety function (i.e.,

certain required components) would occur upon a loss of offsite power. Theses certain components which are critical to accomplishment of the required safety functions may be l-identified in advance and administratively controlled and/or evaluated on a case-by-case basis.

9 QUAD CITIES - UNITS 1 & 2 '

B 3/4.9-1 Amendment Nos. 160 & 156

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ELECTRICAL POWER SYSTEMS B 3/4.9 BASES With suitable redundancy in components and features not available, the plant must be placed in a i

condition for'which the Limiting Condition for Operation does not apply.

The term verify as 'used toward A.C. electrical power sources means to administratively check by examining logs or other information to determine if certain components are out-of-service for pre-

. planned preventative maintenance, testing, or other reasons. It does not mean to perform the I

surveillance requirements needed to demonstrate the OPERABILITY of the' component.

L With one offsite circuit and one diesel generator inoperable, individual redundancy is lost in both

-.the offsite and onsite electrical power system. Therefore, the allowable outage time is more 1

. limited. The time limit takes into account the capacity and capability of the remaining sources, reasonable time for repairs, and the low probability of a design basis event occurring during this i

period.

i With both of the required offsite circuits inoperable, sufficient onsite A,C. sources are available to rnaintain the unit in a safe shutdown condition in the event of a design basis transient or accident.

7 In fact, a simultaneous loss of offsite A.C. sources, a loss-of-coolant accident, and a worst-case single failure were postulated as a part of the design basis in the safety analysis. Thus, the allowable outage time provides a period of time to effect restoration of all or all but one of the offsite circuits commensurate with the importance of maintaining an A.C. electrical power system j

capable of meeting its design intent, l

With two diesel generators inoperable there are no remaining standby A.C. sources. Thus, with an assumed loss of offsite electrical power, insufficient standby A.C. sources are available to power the minimum required ESF functions. Since the offsite electrical power system is the only source of A.C. power for th!s level of degradation, the risk associated with continued operation for a very short time could be less than that associated with an immediate controlled shutdown, which could result in grid instability and possibly a loss of total A.C. power. The allowable time to repair is severely restricted during this condition. The intent here is to avoid the risk associated with an 4

immediate controlled shutdown and to minimize the risk associated with this level of degradation.

Reporting requirements are ir cluded for a " problem emergency diesel generator," as recommended i

in Regulatory Guide 1.9, draft Revision 3. The required report should include a description of the failures, the underlying causes, and the corrective actions taken.

Surveillance Requirements are provided which assure proper circuit continuity for the offsite A.C.

1 electrical power supply to the onsite distribution network and availability of offsite A.C. electrical power. The breaker alignment verifies that each breaker is in its correct position to ensure distribution buses and loads a e connected to their preferred power source. The frequency is j

adequate since breaker position is not likely to change without the operator being aware of it and because status is displayed in the control room. Should the action provisions of this specification require an increase in frequency, this Surveillance Requirement assures proper circuit continuity for the available offsite A.C. sources during periods of degradation and potentialinformation on j-common cause failures that would otherwise go undiscovered.

QUAD CITIES - UNITS 1 & 2 B 3/4.9-2 Amendment Nos. 160 & 156 i

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ELECTRICAL POWER SYSTEMS. B 3/4.9 p

BASES 4

L i

Surveillance Requirements are also provided for demonstrating the OPERABILITY of the diesel generators. The specified testing is based on the guidance provided in Regulatory Guide 1.9, draft a

Revision 3 (1/91), Regu!atory Guide 1.108, Revision 1, and Regulatory Guide 1.137, Revision 1, as

' modified by plant specific analysis, diesel generator manufacturer recommendations and responses a

i to Generic Letter 84-15.

4 j

The diesel generators are equipped with a prelub'rication system which maintains a continuous flow of oil to the diesel engine moving parts while the engine is shutdown. The purpose of this system is to increase long term diesel generator reliability by reducing the stress and wear caused by frequent dry starting of the diesel generator. The diesel generator prelube may be accomplished

either through normal operation of the installed prelubrication system or by manual prelubrication i '

of the diesel generator in accordance with the manufacturer's instructions. Performance of an idle j

start of the diesel generator is not considered to be a means of prelubrication.

j i

-- A periodic " start test" of the diesel generators demonstrates proper startup from standby i

conditions, and verifies that the required generator voltage and frequency is attained. For this test, i

the diesel generator may be slow started and reach rated speed on a prescribed schedule that is i

selected to minimize stress and wear. In cases where this Surveillance Requirement is being used to identify a possible common cause failure modes in accordance with the action provisions, this test eliminates the risk of paralleling two of the remaining A.C. sources, which may compromise j

the A.C. source independence.

1 A " load-run test" normally follows the periodic " start test" of the diesel generator to demonstrate operation at or near the continuous rating. This surveillance should only be conducted on one i

l diesel generator at a time in order to avoid common cause failures that might result from offsite circuit or grid perturbations. A minimum run time of 60 minutes is required to stabilize engine i

temperatures. Actual run time should be in accordance with vendor recommendations with regard i

l to good operating practice and should be sufficient to ensure that cooling and lubrication are adequate for extended periods of ~ operation, while minimizing the time that the diesel generator is connected to the offsite source. This Surveillance Requirement may include gradualloading, as j

i i

recommended by the manufacturer, so that mechanical stress and wear on the diesel engine are l

j minimized. A load band is provided to avoid routine overloading of the diesel generators.

j j'

Momentary transients outside the load band because of changing bus loads do not impact the validity of this test.

i.

A periodic surveillance requirement is provided to assure the diesel generator is aligned to provide standby power on demand. Periodic surveillance requirements also verify that, without the aid of the refill compressor, sufficient air start capacity for each diesel generator is available. With either pair of air receiver tanks at the minimum specified pressure, there is sufficient air in the tanks to l

start the associated diesel generator.

)

i Surveillance requirements provide verification that there is an adequate inventory of fuel oil in the storage tanks that is sufficient to provide time to place the facility in a safe shutdown condition 4

and to bring in replenishment fuel from an offsite location. Additional diesel fuel can normally be obtained and delivered to the site within an cight hour period; thus a two day supply provides for QUAD CITIES - UNITS 1 & 2 B 3/4.9-3 Amendment Nos. 160 & 156 3

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El.ECTRICAL POWER SYSTEMS B 3/4.9 BASES adequate margin. The operation of each required fuel oil transfer pump is demonstrated by transferring fuel oil from its associated storage tank to its associated day tank. This surveillance provides assurance that the fuel oil transfer pump is OPERABLE, the fuel oil piping system is intact, the fuel delivery piping is not obstructed, and the necessary fuel oil day tank instrumentation is OPERABLE.

A comprehensive surveillance program is provided to ensure the availability of high quality fuel oil for the diesel generators which is necessary to ensure proper operation. Water content should be minimized, because water in the fuel would contribute to excessive corrosion of the system, causing decreased reliability. The growth of micro-organisms results in slime formations, which are one of the chief causes of jellying in hydrocarbon fuels. Therefore, minimizing such slimes is also essential to assuring high reliability.

N Sampling of both new diesel fuel oil and the bulk fuel oil storage tanks is in accordance with the American Society for Testing Materials (ASTM) standard D4057. Testing for API gravity is in accordance with ASTM D1298, water and sediment is in accordance with ASTM D1796, and the visual test for free water and particulate contamination (clear and bright) is in accurdance with ASTM D4176. Testing for kinematic viscosity is in accordance with ASTM D445 and particulate contaminant testing is in accordance with ASTM D2276. Parameter limits are in accordance with ASTM D396 for API gravity, ASTM D975 for water and sediment and for kinematic viscosity, and ASTM D4176 for " clear and bright." The specific revision in use for each of these standards is controlled by procedure.

i The diesel fuel oil day tanks are not equipped with the capability to obtain samples. Any accumulated water is removed by partially draining the day tank to the bulk fuel oil storage tank on a routine basis. Monthly sampling of the bulk fuel oil storage tank is then used to detect the presence of any water.

Fuel oil testing may indicate that such fuel oil is not within the required parameters. However, 3

continued operation is acceptable while measures are taken to restore the properties of the fuel oil to within its limits since the properties of interest, even if they were not within the required limits, would not have an immediate effect on diesel generator operation. If the fuel oil properties cannot be returned to within their limits in the allowed time, the associated diesel generator (s) is (are) declared inoperable and the appropriate ACTION (s) taken.

A semi-annual surveillance is provided to verify the diesel generator can " fast start" from standby conditions and achieve the required voltage and frequency within the timing assumptions of the design basis loss of coolant accident safety analysis. Conducting this test on a semi-annual frequency is consistent with the intent of the reduction of cold testing identified in Gwric Letter 84-15.

Additional surveillance requirements provide for periodic inspections and demonstration of the diesel generator capabilities, some are conducted in conjunction with a simulated loss of offsite power and/or a simulated ESF actuation signal. These tests of the diesel generator are expected to OUAD CITIES - UNITS 1 & 2 B 3/4.9-4 Amendment Nos. 160&156)

ELECTRICAL POWER SYSTEMS B 3/4.9 BASES be conducted during an outage to functionally test the system. This testing is consistent with the intent of the diesel generator reliability programs recommended by Regulatory Guide 1.155.

3/4.9.B A.C. Sources - Shutdown The A.C. sources required during Cold Shutdown, Refueling, when handling irradiated fuel and during operations with a potential for draining the reactor vessel provide assurance that:

1.

Systems to provide adequate coolant inventory makeup are available for the irradiated fuel in the core in case of an inadvertent draindown of the reactor vessel; 2.

Systems needed to mitigate a fuel handling accident are available; 3.

Systems necessary to mitigate the effects of events that can lead to core damage during shutdown are OPERABLE: and 4.

Instrumentation and control capability is available for monitoring and maintaining the unit in a cold shutdown condition and refueling condition.

With one or more of the required A.C. electrical power sources inoperable, the action provisions require a suspension of activities that will preclude the occurrence of actions that could potentially initiate the postulated events. However, timely suspension of these activities is not intended to preclude completion of actions necessary to establish a safe, conservative condition.

The Surveillance Requirernents for A.C. Source Shutdown are the same as those for operation, with the exception of the periodic " load-run test" which is not required due to the limited redundancy of A.C. power sources.

3/4.9.C D.C. Sources - Operatina The station D.C. electrical power system provides the A.C. emergency power system with control power. It also provides both motive and control power to selected safety-related equipment.

During normal operation, the D.C. electrical loads are powered from the battery chargers with batteries floating on the system. In case of loss of normal power to the battery charger, the D.C.

load is automatically powered from the station batteries.

Each battery of the D.C. electrical power systems is sized to start and carry the normal D.C. loeds plus all D.C. loads required for safe shutdown on one unit and operations required to limit the consequences of a design basis event on the other unit for a period of 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months following loss of all A.C. sources. The battery chargers are sized to restore the batter / to full charge under normal (non-emergency) load conditions. A normally disconnected alternate 125 voit battery is also provided as a backup for each normal battery, if both units are r perating, the normal 125 volt battery must be returned to service within the specified time fra ne since the design configuration QUAD CITIES - UNITS 1 & 2 B 3/4.9-5 Amendment Nos. 160 & 156

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ELECTRICAL POWER SYSTEMS B 3/4.9 1,

BASES 4

of the alternate battery circuit is susceptible to single failure and, hence, is not as reliable as the j

j normal station circuit. During times when the other unit is in a Cold Shutdown or Refuel condition,

{

q

. an alternate 125 volt battery is available to replace a normal station 125 volt battery on a continuous basis to provide a second available power source. With the alternate 125 volt battery l

in service, the normally open breaker on the DC Reserve Bus is placed in the open position and t

4

- posted, i.e., " tagged out."

(

4 With one of the required D.C. electrical power subsystems inoperable the remaining system has j

' the capacity to support a safe shutdown and to' mitigate an accident condition. However, a j

subsequent worst case single failure would result in complete loss of ESF functions. Therefore, an allowed outage time is provided based on a reasonable time to assess plant status as a function of the inoperable D.C. electrical power subsystem and, if the D.C. electrical power subsystem is not t

-restored to OPERABLE status, prepare to effect an orderly and safe plant shutdown.

-l i

inoperable chargers do not necessarily indicate that the D.C. systems are not capable of I

performing their post accident functions as long as the batteries are within their specified l

}

parameter limits. With both the required charger inoperable and the battery degraded, prompt action is required to assure an adequate D.C. power supply.

j 4

j.

ACTION (s) are provided to delineate the measurements and time frames needed to continue to assure OPERABILITY of the Station batteries when battery parameters are outside their identified

[

limits.

i Battery surveillance requirements are based on the defined battery cell parameter values. Category A defines the normal parameter limit for each designated pilot cell in each battery. The pilot cells are the average cells in the battery based on previous test results. These cells are monitored closely as an indication of battery performance. Category B defines the normal parameter limits for l

each connected cell. The term " connected cell" excludes any battery cell that'may be jumpered j

out because of a degraded condition or for any other reason. Category B also defines allowable values for each connected cell. These values, although reduced, provide assurance that sufficient l

capacity exists to perform the intended function and maintain a margin of safety. When any battery parameter is outside the Category B allowable value, the assurance of sufficient capacity i

}

as described above no longer exists and the battery must be declared inoperable.

i Verifying battery terminal voltage while on float charge for the batteries helps to ensure the effectiveness of the charging system and the ability of the batteries to perform their intended function. The voltage requirements are based on the nominal design voltage of the battery and are j

consistent with the initial voltages assumed in the battery sizing calculations.

}

Visual inspection to detect corrosion of the battery cells and connections, or measurement of the i

resistance of each connection provides an indication of physical damage or abnormal deterioration that could potentially degrade battery performance. The limits established for this Surveillance j

l Requirement shall be no more than 20% above the resistance as measured during installation or 3

not above the ceiling value established by the manufacturer, i

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QUAD CITIES - UNITS 1 & 2 B 3/4.9-6 Amendment Nos. 160 & 156 ;

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1-ELECTRICAL POWER SYSTEMS B 3/4.9 e

f BASES.

I i

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Verifying an acceptable average temperature of representative cells is consistent with the recommendations of IEEE-450 and ensures that lower than normal temperatures do not act to

- inhibit or reduce battery capacity, I

Verifying that the chargers will provide the manufacturer's rated current and voltage for four hours

~

- ensures that charger deterioration has not occurred and that the charger will provide the necessary capacity to restore the battery to a fully charged state.

l A battery service test is a special test of the battery's capability "as found" to satisfy the design I

requirements of the D.C. electrical power system. The' discharge rate and test length should correspond to the design duty cycle requirements.

A battery performance test is a test of constant current capacity of the battery to detect any t

j change in the capacity determined by the acceptance test. This test is intended to determine 4

overall battery degradation due to age and usage. A battery capacity of 80% indicates that the battery rate of deterioration is increasing, even if there is ample capacity to meet the load requirements. However, if the design margins are more limiting, the acceptable limit is based on i

i, the latest load profile.

i l

3/4.9.D D.C. Sources - Shutdown 1

1 The D.C. sources required to be OPERABLE during Cold Shutdown, Refueling, when handling irradiated fuel and during operations with a potential for draining the reactor vessel provide

{

assurance that:

1.

Systems to provide adequate coolant inventory makeup are available for the irradiated fuel j

in the core in case of an inadvertent drain down of the reactor vessel; 2.

Systems needed to mitigate a fuel-handling accident are available; 3

3.

Systems necessary to mitigate the effects of events that can lead to core damage during shutdown are OPERABLE; i

j 4.

Instrumentation and control capability is available for monitoring and maintaining the unit in a cold shutdown condition and refueling condition.

With one or more of the required D.C. electrical power sources inoperable, the action provisions i

require a suspension of activities that will preclude the occurrence of actions that could potentially initiate the postulated events. However, timely suspension of these activities is not intended to preclude completion of actions necessary to establish a safe, conservative condition.

i QUAD CITIES - UNITS 1 & 2 B 3/4.9-7 Amendment Nos. 160 & 156 1

4 v

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ELECTRICAL POWER SYSTEMS B 3/4.9 BASES 3/4.9.E.

Distribution - Operatina The OPERABILITY of the A.C. and D.C. onsite power distribution systems ensures that sufficient power will be available to the safety related equipment required for (1) the safe shutdown of the facility and (2) the mitigation and control of accident conditions within the facility.

f The surveillance requirements verify that the A.. and D.C. electrical power distribution systems are functioning properly, with all the required circuit breakers closed and the buses energized from normal power. The verification of proper voltage availability on the buses ensures that the required power is readily available for motive as well as control functions for critical system loads connected to these buses. The frequency takes into account the redundant capability of the A.C.

and D.C. electrical power distribution subsystems, and other indications available in the control room that will alert the operator to subsystem malfunctions.

3/4.9.F Distribution - Shutdown The OPERABILITY of the minimum specified A.C. and D.C. onsite power distribution systems, during Cold Shutdown and Refueling and when handling irradiated fuel in the secondary containment, ensures that the facility can be maintained in these conditions for extended time periods and sufficient instrumentation and control capability is available for monitoring and maintaining the unit status. Requiring OPERABILITY of the minimum specified onsite power distribution systems when handling irradiated fuel in the secondary containment helps to ensure that systems needed to mitigate a fuel handling accident are available.

3/4.9.G RPS Power Monitorina Specifications are provided to ensure the OPERABILITY of the reactor protection system (RPS) bus electrical protection assemblies (EPAs). Each RPS motor generator (MG) set and the alternate power source has 2 EPA CHANNEL (s) wired in series. A trip of either CHANNEL from either overvoltage, undervoltage, or underfrequency will disconnect the associated MG set or alternate i

power source.

The associated surveillance requirements provide for demonstration of the OPERABILITY of the RPS EPA's. The setpoints for overvoltage, undervoltage, and underfrequency have been chosen based on analysis (ref. February 4,1983 letter to H. Denton from T. Rausch).

I OUAD CITIES - UNITS 1 & 2 B 3/4.9-8 Amendment Nos. 160&156l

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ML20092J376

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ML20092J376
Site:	Dresden, Quad Cities (DPR-19-A-138, DPR-25-A-132, DPR-29-A-160, DPR-30-A-156)
Issue date:	09/18/1995
From:	Stang J NRC (Affiliation Not Assigned)
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ML20092J383	List: ML20092J376 ML20092J388
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NUDOCS 9509220097
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