ML20210D395

Amends 10 & 3 to Licenses NPF-35 & NPF-52,respectively, Modifying Tech Specs Re Testing Requirements for Diesel Generators & Changes to Diesel Generator Fuel Oil Storage Requirements

ML20210D395
Person / Time
Site:	Catawba
Issue date:	09/15/1986
From:	Jabbour K Office of Nuclear Reactor Regulation
To:
Shared Package
ML20210D401	List: ML20210D395 ML20210D408
References
NUDOCS 8609190181
Download: ML20210D395 (18)

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o UNITED STATES 8"

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NUCLEAR REGULATORY COMMISSION o

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DUKE POWER COMPANY NORTH CAROLINA ELECTRIC MEMBERSHIP CORPORATION

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SALUDA RIVER ELECTRIC COOPERATIVE, INC.

DOCKET NO. 50-413 CATAWBA NUCLEAR STATION, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 10 License No. NPF-35 1.

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

A.

The application for amendment to the Catawba Nuclear Station IUnit 1 (the facility) Facility Operating License No. NPF-35 filed by the Duke Power Company acting for itself, North Carolina Electric Membership)

Corporation and Saluda River Electric Cooperative, Inc., (licensees dated March 24, 1986, as supplemented June 30 and July 28, 1986, complies with the standards and requirements of the Atomic Energy Act s

of 1954, as amended (the Act) and the Comission's regulations as set forth in 10 CFR Chapter I; B.

The facility will operate in confonnity with the application, as amended, the provisions of the Act, and the regulations of the Comission; C.

There is reasonable assurance: (1)thattheactivitiesauthorizedby this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Comission's regulations set forth in 10 CFR Chapter I; D.

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

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

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. 2.

Accordingly, the license is hereby amended by page changes to the Technical Specifications as indicated in the attachments to this license amendment and Paragraph 2.C.(2) of Facility Operating License No. NPF-35 is hereby amended to read as follows:

(2) Technical Specifications and Environmental Protection Mai r

The Technical Specifications contained in Appendix A, as revised through Anendment No.19 and the Environmental Protection Plan -

contained in Appendix B, both of which are attached hereto, are hereby incorporated into this license.

Duke Power Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3.

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

FOR THE NUCLEAR REGULATORY C0PetISSION q

1 Kahtan Jabbour, Project' Manager '

PWR Project Directorate No. 4 Division of PWR Licensing-A

Attachment:

Technical Specification Changes Date of Issuance: September 15, 1986 2f k

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NORTH CAROLINA MUNICIPAL POWER AGEhCY NO. 1 PIEDMONT MUNICIPAL POWER AGENCY DOCKET NO. 50-414 CATAWBA NUCLEAR STATION, UNIT 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 3 License No..NPF-52 1.

The Nuclear Regulatory Connission (the Connission) has found tha't:

l A.

The application for amendment to the Catawba Nuclear Station, Unit 2 (the facility) Facility Operating License No. NPF-52 filed by the Duke 4wer Company acting for itself, North Carolina Municipal Power Agency no. I and Piedmont Municipal Power Agency (licensees) dated March 24, 1986, as supplemented June 30 and July 28, 1986, complies with the standards and requirenents of the Atomic Energy Act of 1954, as amended (the Act) and the Commission's regulations as set forth in 10 CFR Chapter I; y

B.

The facility will operate in conformity with the application, as amended, the provisions of the Act, and the regulations of the Connission; C.

There is reasonable assurance: (1) that the activities authorized by t

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 Connission's regulations set forth in 10 CFR l

Chapter I; D.

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

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

. 2.

Ac.cordingly, the license is hereby amended by page changes to the Technical Specifications as indicated in the attachments to this license amendment and

. Paragraph 2.C.(2) of Facility Operating License No. NPF-52 is hereby amended to read as follows:

(2) Technical Specifications and Environ:nental Protection Plan The Technical Specifications contained in Appendix A, as revised through Arendment No.3, and the Environmental Protection Plan contained in Appendix B, both of which are attached hereto, are hereby incorporated into this license.

Duke Power Company shall operate the facility in accordance with the Technical Specifications and the Environmental Protection Plan.

3.

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

FOR THE NUCLEAR REGULATORY COMMISSION

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Kahtan Jabbour, Project Manager PWR Project Directorate No. 4 Division of PWR Licensing-A

Attachment:

Technical Specification Changes Date of issuance:

September 15, 1986

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ATTACHMENT TO LICENSE AMENDMENT N0.

FACILITY OPERATING LICENSE NO. NPF-35 DOCKET NO. 50-413 AND TO LICENSE AMENDMENT NO.

FACILITY OPERATING LICENSE NO. NPF-52 DOCKET NO. 50-414 i

Replace the following pages of the Appendix "A" Technical Specifications with the enclosed pages. The revised pages are identified by Amendment number and contain vertical lines indicating the areas of change. The corresponding overleaf pages are also provided to maintain document completeness.

Amended Overleaf Page Page 3/4 8-1 3/4 8-2 3/4 8-3 3/4 8-4 3/4 8-5 3/4 8-6 3/4 8-7 3/4 8-8 3/4 8-8a 3/4 8-9 3/4 8-10 3/4 8-11 3/4 8-12 8 3/4 8-1 B 3/4 8-2 l

l 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

Two physically independent circuits between the offsite transmission network and the Onsite Essential Auxiliary Power System, and b.

Two separate and independent diesel generators, each with:

1)

A separate day tank containing a minimum volume of 470 gallons l

of fuel, 2)

A separate Fuel Storage System containing a minim 0m volume of 77,100 gallons of fuel, l

3)

A separate fuel transfer valve, and 4)

A separate 125 VDC battery and charger connected to the diesel generator control loads.

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

ACTION:

With an offsite circuit of the above required A.C. electrical power a.

sources inoperable, demonstrate the OPERABILITY of the remaining A.C.

source by performing Specification 4.8.1.1.la. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

If either diesel generator has not been successfully tested within the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, demonstrate its OPERABILITY by performing Surveillance Requirements 4.8.1.1.2a.4) and 4.8.1.1.2a.5) for each such diesel generator separately within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore the offsite circuit to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b.

With one offsite circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Specifica-tion 4.8.1.1.la. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> there-after.

If a diesel generator becomes inoperable due to any cause i

other than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by per-forming Surveillance Requirements 4.8.1.1.2a.4) and 4.8.1.1.2a.5) within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />

• unless the diesel generator has been successfully tested within the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore at least one of the inoperable sources to OPERABLE status within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Restore at least two offsite circuits CATAWBA - UNITS 1 & 2 3/4 8-1 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION r

ACTION (Continued) and two diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from the time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

c.

With a diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the A.C. offsite sources by performing Surveillance Requirement 4.8.1.1.la within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; and unless the inoperability of the diesel was due to preplanned testing or mainte-nance, demonstrate the operability of the remaining diesel generator by performing Surveillance Requirements 4.8.1.1.2a.4 and 4.8.1.1.2a.5 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> *; restore diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next.6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. With one diesel genera-tor inoperable in addition to ACTION b. (if applicable) above, verify that:

l 1.

All required systems, subsystems, trains, components and devices that depend on the remaining OPERABLE diesel generator as a i

source of emergency power are also OPERABLE, and 2.

When in MODE 1, 2, or 3 with a steam pressure greater than 900 psig, the steam-driven auxiliary feedwater pump is OPERABLE.

4 If these conditions are not satisfied within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

With both of the above required offsite A.C. circuits inoperable, d.

demonstrate the OPERABILITY of both diesel generators by performing Specfication 4.8.1.1.2a.4) and 4.8.1.1.2a.5) separately for each die-sel generator within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> unless the diesel generators are already operating; restore at least one of the inoperable offsite sources to OPERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />. With only one offsite source restored, restore at least two offsite circuits to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />. A suc-cessful test (s) of diesel generator OPERABILITY per Surveillance Re-quirements 4.8.1.1.2a.4) and 4.8.1.1.2a.5) performed under this ACTION statement for the OPERABLE diesel generators satisfies the diesel generator test requirements of ACTION statement a.

l e.

With both of the above required diesel generators inoperable, demon-1 4

strate the OPERABILITY of two offsite A.C. circuits by performing Specification 4.8.1.1.la. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; restore at least one of the inoperable diesel generators to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> or be in at least HOT STANDBY within

• This test is required to be completed regardless of when the inoperable diesel generator is restored to OPERABILITY.

The provisions of Specification 3.0.2 i

are not applicable.

CATAWBA - UNITS 1 & 2 3/4 8-2 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

~

ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

Restore both diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> l

from time of initial loss or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

f.

With a diesel generator operating at greater than 5750 kW, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> reduce the diesel generator output to less than or equal to 5750 kW.

g.

With the Cathodic Protection System inoperable, restore the System to OPERABLE status within 10 days or prepare and submit a Special l

Report pursuant to Specification 6.9.2 outlining the cause of the inoperability and the plans for restoring the System to OPERABLE.

SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the Onsite Essential Auxiliary Power System shall be:

a.

Determined OPERABLE at least once per 7 days by verifying correct breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months by transferring l

(manually and automatically) unit power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

a.

In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1)

Verifying the fuel level in the day tank, 2)

Verifying the fuel level in the fuel storage tank, 3)

Verifying the fuel transfer valve can be operated to allow fuel to be transferred from the storage system to the day tank, 4)

Verifying the diesel starts from ambient condition and accelerates to at least 441 rpm in less than or equal to 11 seconds.* The 1

generator voltage and frequency shall be 4160 + 420 volts and 60 + 1.2 Hz within 11 seconds after the start signal. The diesel generator shall be started for this test by using one of the 4

following signals:

a)

Manual, or b)

Simulated loss of offsite power by itself, or c)

Simulated loss of offsite power in conjunction with an ESF Actuation test signal, or d)

An ESF Actuation test signal by itself.

• The diesel generator start (11 sec.) from ambient conditions shall be performed at least once per 184 days in these surveillance tests. All other engine starts for the purpose of this surveillance testing may be preceded by an engine pre-lube period and/or other warmup procedures recommended by the manufacturer so that mechanical stress and wear on the diesel engine is minimized.

CATAWBA - UNITS 1 & 2 3/4 8-3 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

I

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 5)

Verifying the generator is synchronized, loaded to greater than or equal to 5600 kW but less than or equal to 5750 kW in less than or equal to 60 seconds, and operates for at least 60 minutes, and 6)

Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.

b.

At least once per 31 days and after each operation of the diesel where the period of operation was greater than or equal to 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> by checking for and removing accumulated water from the day tank; c.

At least once per 31 days by checking for and-removing accumulated water from the fuel oil storage tanks; d.

By verifying that the Cathodic Protection System is OPERABLE by l

verifying:

1)

At least once per 60 days that cathodic protection rectifiers are OPERABLE and have been inspected in accordance with the l

manufacturer's inspection procedures, and 2)

At least once per 12 months that adequate protection from corro-sion is provided in accordance with manufacturer's inspection procedures.

e.

By sampling new fuel oil in accordance with ASTM-D4057 prior to addi-tion to storage tanks and:

1)

By verifying in accordance with the tests specified in ASTM-D975-81 prior to addition to the storage tanks that the sample has:

i a)

An API Gravity of within 0.3 degrees at 60*F, or a specific gravity of within 0.0016 at.60/60*F, when compared to the supplier's certificate, or an absolute specific gravity at 60/60'F of greater than or equal to 0.83 but less than or equal to 0.89, or an API gravity of greater than or equal to 27 degrees but less than or equal to 39 degrees; b)

A kinematic viscosity at 40*C of greater than or equal to 1.9 centistokes, but less than or equal to 4.1 centistckes (alternatively, Saybolt viscosity, SUS at 100*F of greater than or equal to 32.6, but less than or equal to 40.1),

if gravity was not determined by comparison with the supplier's certification; I

c)

A flash point equal to or greater than 125'F; and d)

A clear and bright appearance with proper color when tested in accordance witn ASTM-D4176-82.

l 2)

By verifying within 30 days of obtaining the sample that the other properties specified in Table 1 of ASTM-0975-81 are met when tested in accordance with ASTM-D975-81 except that the analysis for sulfur may be performed in accordance with ASTM-D1552-79 or ASTM-D2622-82.

CATAWBA - UNITS 1 & 2 3/4 8-4 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

4 ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) f.

At least once every 31 days by obtaining a sample of fuel oil in accordance with ASTM-D2276-78, and verifying that total particulate contamination is less than 10 mg/ liter when checked in accordance i

with ASTM-D2276-78, Method A; g.

At least once per 18 months by:

1)

Subjecting the diesel to an inspection, during shutdown, in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby 3

service; 2)

Verifying the generator capability to reject a load of greater than or equal to 825 kW while maintaining voltage at 4160 1 420 volts and frequency at 60 1 1.2 Hz; 3)

Verifying the generator capability to reject a load of greater i

than or equal to 5600 kW but less than or equal to 5750 kW without tripping.

The generator speed shall not exceed 500 rpm during and following the load rejection; 4)

Simulating a loss-of-offsite power by itself,** during shutdown, l

and:

a)

Verifying deenergization of the emergency busses and load shedding from the emergency busses, and b)

Verifying the diesel starts on the auto-start signal, energizes the emergency busses with pemanently connected loads within 11 seconds, energizes the auto-connected emergency (accident) loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the emergency loads. After ener-gization, the steady-state voltage and frequency of the emergency busses shall be maintained at 4160 1 420 volts 1

and 60 1 1.2 Hz during this test.

~

5)

Verifying that on an ESF Actuation test signal, without loss-of-offsite power, the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes.

The generator voltage and frequency shall be at 4160

• 420 volts and 60

• 1.2 Hz within 11 seconds after the auto-start signal; the steady-state generator voltage and frequency shall be maintained within these limits during this test; 6)

Simulating a loss-of-offsite power in conjunction with an ESF Actuation test signal, during shutdown, and l

a)

Verifyingdeenergizationoftheemergencybussesandload shedding from the emergency busses;*

• • This surveillance need not be performed until prior to entering HOT SHUTDOWN following the Unit 1 first refueling.

CATAWBA - UNITS 1 & 2 3/4 8-5 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

ELECTRICAL POWER SYSTEMS l

SURVEILLANCE REQUIREMENTS (Continued) b)

Verifying the diesel starts on the auto-start signal, i

energizes the emergency busses with permanently connected loads within 11 seconds, energizes the auto-connected j

emergency (accident) loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the emergency loads. After energization, the steady-state voltage and frequency of the emergency busses shall be maintained at 4160 + 420 l

volts and 60 + 1.2 Hz during this test;** and c)

Verifying that all automatic diesel generator trips, except engine overspeed, low-low lube oil pressure, generator differential, and the 2 out of 3 voltage controlled overcurrent relay scheme, are automatically bypassed upon loss of voltage on the emergency bus concurrent with a Safety Injection Actuation signal.

7)

Verifying, during shutdown, the diesel' generator operates for l

at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

The diesel generator shall be loaded to greater than or equal to 5600 kW but less than or equal to 5750 kW.

The generator voltage and frequency shall be 4160 + 420 volts and 60 + 1.2 Hz within 11 seconds after the 7

start signal; the steady state generator voltage and frequency shall be maintained within these limits during this test.

With-in 5 minutes after completin fication4.8.1.1.2g.6)b);**gthis24-hourtest,performSpeci-i 8)

Verifying, during shutdown, that the auto-connected loads to l

each diesel generator do not exceed 5750 kW;**

9)

Verifying, during shutdown, the diesel generator's capability l

to:**

a)

Synchronize with the offsite power source while the generator is loaded with its emergency loads upon a simulated restoration of offsite power, b)

Transfer its loads to the offsite power source, and c)

Be restored to its standby status.

10) Verifying, during shutdown, that with the diesel generator l

operating in a test mode, connected to its bus, a simulated Safety Injection signal overrides the test mode by: (1) return-ing the diesel generator to standby operation, and (2) automati--

cally energizing the emergency loads with offsite power;**

• If Specification 4.8.1.1.2g.6)b) is not satisfactorily completed, it is not necessary to repeat the preceding 24-hour test.

Instead, the diesel generator may be operated at greater than or equal to 5600 kW but less than or equal to 5750 kW for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or until operating temperature has stabilized.

i

• • This surveillance need not be performed until prior to entering HOT SHUTDOWN fcllowing the Unit 1 first refueling.

CATAWBA - UNITS 1 & 2 3/4 8-6 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

^

l l,....

l ELECTRICAL POWER SYSTEMS l.

SURVEILLANCE REQUIREMENTS (Continued)

11) Verifying that the fuel transfer valve transfers fuel from each fuel storage tank to the day tank of each diesel via the in-stalled cross-connection lines;

12) Verifying that the automatic load sequence timer is OPERABLE i

with the interval between each load block within the tolerances given in Table 4.8-2;

13) Verifying that the voltage and diesel speed tolerances for the accelerated sequencer permissives are 92.5

• 1% and 98 + 1%,

respectively, with a minimum time delay of 2

• 0.2 s; and

14) Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:

a)

Turning gear engaged, or b)

Maintenance mode.

h.

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel generators simultaneously, during shutdown, and verifying that both i

diesel generators accelerate to at least 441 rpm in less than or equal to 11 seconds; and i.

At least once per 10 years by:

1)

Draining each fuel oil storage tank, removing-the accumulated sediment and cleaning the tank using a sodium hypochlorite solution or its equivalent, and 2)

Performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection ND of the ASME Code at a test pressure equal to 110% of the system design pressure.

3)

Performing tank wall thickness measurements. The resulting data shall be evaluated and any abnormal degradation will be justified or corrected.

Any abnormal degradation will be documented in a report to the Commission.

4.8.1.1.3 Reports - All diesel generator failures, valid or non-valid, shall be reported in a Special Report to the Commission pursuant to Specification 6.9.2 within 30 days.

Reports of diesel generator failures shall include the informa-tion recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revi-sion 1, August 1977.

If the number of failures in the last 100 valid tests (on a per nuclear unit basis) is greater than or equal to 7, the report shall be supplemented to include the additional information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977.

CATAWBA - UNITS 1 & 2 3/4 8-7 Amendment No.

(Unit 1) l Amendment No.

(Unit 2)

~.

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued)-

4.8.1.1.4 Diesel Generator Batteries - Each diesel generator 125-volt battery bank and charger shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifying that:

1)

The electrolyte level of each battery is at or above the low mark and at or below the high mark, 2)

The overall battery voltage is greater than or equal to 125 volts on float charge, and 3)

The individual cell voltage is greater than or equal to 1.36 volts on float charge.*

b.

At least once per 92 days and within 7 days after a battery discharge with battery terminal voltage below 110 volts, or battery overcharge with battery terminal voltage above 150 volts, by verifying that:

1)

There is no visible corrosion at either terminals or connectors, and 2)

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

c.

At least once per 18 months by verifying that:

1)

The batteries, cell plates and battery racks show no visual indication of physical damage or abnormal deterioration, 2)

The cell-to-cell and terminal connections are clean, tight, free of corrosion and coated with anticorrosion material in accordance with manufacturer's recommendations, 3)

The cell-to-cell pole screws torque setting is 14.5 1 0.5 ft-lbs, 4)

The battery charger will supply at least 75 amperes at a minimum of 125 volts for at least 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, and 5)

The battery capacity is adequate to supply and maintain in OPERABLE status its emergency loads when subjected to a battery service test. The battery shall supply a current of greater than or equal tn 171.6 amps for the first minute and a current of greater than or equal to 42.5 amps for the remaining 119 minutes, while maintaining a terminal voltage of greater than or equal to 105 volts.

d.

At least once per 60 months, during shutdown, by verifying that the battery capacity is at least 80% of the manufacturer's rating when subjected to a performance discharge test. Once per 60 month interval, this performance discharge test may be performed in lieu of the battery service test.*

l

• Two different cells shall be tested each month.

• • First test to be conducted within 60 months following OL issuance date.

CATAWBA - UNITS 1 & 2 3/4 8-8 Amendment No..(Unit 1)

Amendment No.

(Unit 2) l

+-

ELECTRICAL' POWER SYSTEMS i

SURVEILLANCE REQUIREMENTS (Continued) e.

At least once per 18 months, during shutdown, by giving performance discharge tests of battery capacity to any battery that shows signs i

of degradation or has reached 85% of the service life expected for the application.

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

I e

CATAWBA - UNITS 1 & 2 3/4 8-8a Amendment No.

(Unit 1) l Amendment No.

(Unit 2)

4 i

TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE NUMBER OF FAILURES IN NUMBER OF FAILURES IN LAST 20 VALID TESTS

• LAST 100 VALID TESTS

• TEST FREQUENCY

$1 14 At least once per 31 days 2 2**

15 At least once per 7 days i

• Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide 1.108, but determined on a per diesel generator basis.

For purposes of this schedule, only vaild tests conducted after the completion of the preoperational test requirements of Regulatory Guide 1.108, Revision 1, August 1977, shall be included in the computation of the "last 20/100 valid tests."

For the purposes of determining the required test frequency, the previous test failure count may be reduced to zero if a complete diesel overhaul to like-new condition is completed, provided that the overhaul, including appro-priate post-maintenance operation and testing, is specifically approved by the manufacturer and if acceptable reliability has been demonstrated. The reliability criterion shall be the successful completion of 14 consecutive tests in a single series. Ten of these tests shall be in accordance with the routine Surveillance Requirement 4.8.1.1.a 4) and 4.8.1.1.2.a 5), four tests, in accordance with the 184-day testing requirement of Surveillance Requirements 4.8.1.1.2.a 4) and 4.8.1.1.a 5).

If this criterion is not satisfied during the first series of tests, any alternate criterion to be used to transvalue the failure count to zero requires NRC approval.

• • The associated test frequency shall be maintained until seven consecutive failure-free demands have been performed and the number of failures in the last 20 valid demands has been reduced to less than or equal to one.

i CATAWBA - UNITS 1 & 2 3/4 8-9 Amendment No.

(Unit 1) i Amendment No.

(Unit 2)

ELECTRICAL POWER SYSTEMS A.C. SOURCES SHUTDOWN LIMITING CONDITION FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circuit between the offsite transmission network and the Onsite Essential Auxiliary Power System, and b.

One diesel generator with:

1)

Adaytankcontciningaminimumvolumeof470ga15onsoffuel, l

2)

A fuel storage system containing a minimum volume of 77,100 l

gallons of fuel, 3)

A fuel transfer valve, and 4)

A 125 VDC battery and charger connected to the diesel generator control loads.

APPLICABILITY:

MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, immediately suspend all operations involving CORE ALTERATIONS, positive reactivity changes, movement of irradiated fuel, or crane operation with loads over the fuel storage pool, and within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, depressurize and vent the Reactor Coolant System through at least a 4.5 square inch vent.

In addition, when in MODE 5 with the Reactor Coolant loops not filled, or in l

MODE 6 with the water level less than 23 feet above the reactor vessel flange, immediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.

SURVEILLANCE REQUIREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the requirements of Specifications 4.8.1.1.1, 4.8.1.1.2 (except for Specification 4.8.1.1.2a.5), 4.8.1.1.3, and 4.8.1.1.4.

CATAWBA - UNITS 1 & 2 3/4 8-11 Amendment No.

(Unit 1)

Amendment No.

(Unit 2) l

3/4.8 ELECTRICAL POWER SYSTEMS BASES l

)

3/4.8.1, 3/4.8.2 and 3/4.8.3 A.C. SOURCES, D.C. SOURCES, and ONSITE POWER DISTRIBUTION The OPERABILITY of the A.C. and D.C power sources and associated distribu-tion systems during operation ensures that sufficient power will be available to supply 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 minimum specified independent and redundant A.C. and D.C.

power sources and distribution systems satisfy the requirements of General Design Criterion 17 of Appendix A to 10 CFR Part 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commensurate with the level of degradation.

The OPERABILITY of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C.

power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss-of-offsite power and single failure of the other onsite A.C. source.

The A.C. and D.C. source allowable out-of-service times are based on Regulatory Guide 1.93, " Availability of Electrical Power Sources," December 1974.

When one diesel generator is inoperable, there is an additional ACTION requirement to verify that all required systems, subsystems, trains, components and devices, that depend on the remaining OPERABLE diesel generator as a source of emergency power, are also OPERABLE, l

and that the steam-driven auxiliary feedwater pump is OPERABLE. This require-ment is intended to provide assurance that a loss-of-offsite power event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable. The ters, verify, as 4

used in this context means to administrative 1y check by examining logs or other information to determine if certain components are out-of-service for maintenance or other reasons.

It does not mean to perform the Surveillance Requirements needed to demonstrate the OPERABILITY of the component.

The ACTION requirements for diesel generator testing in the event of the inoper-ability of other electric power sources also reflect the potential for degra-dation of the diesel generator due to excessive testing.

This concern has developed concurrently with increased industry experience with diesel genera-tors and has been acknowledged by the NRC staff in Generic Letter 84-15.

l The OPERABILITY of the minimum specified A.C. and D.C. power sources and associated distribution systems during shutdown and refueling ensures that:

(1) the facility can be maintained in the shutdown or refueling condition for 3

extended time periods, and (2) sufficient instrumentation and control capa-i bility is available for monitoring and maintaining the unit status.

The Surveillance Requirements for demonstrating the OPERABILITY of the i

diesel generators are in accordance with the recommendations of Regulatory Guide 1.9, " Selection of Diesel Generator Set Capacity for Standby Power Supplies," March 10, 1971, 1.108, " Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, August 1977, Regulatory Guide 1.137, " Fuel-011 Systems for Standby Diesel Gener-ators," Revision 1, October 1979, the NRC Staff Evaluation Report concerning the Reliability of Diesel Generators at Catawba, August 14, 1984, and Generic CATAWBA - UNITS 1 & 2 B 3/4 8-1 Amendment No.

(Unit 1)

Amendment No.

(Unit 2)

ELECTRICAL POWER SYSTEMS BASES A.C. SOURCES, D.C. SOURCES, and ONSITE POWER DISTRIBUTION (Continued)

Letter 84-15, " Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability." If any other metallic structures (building, new or modified pip-i ing systems, conduits) are placed in the ground near the Fuel Oil Storage System or if the original system is modified, the adequacy and frequency of inspections for the Cathodic Protection System shall be reevaluated and adjusted in accord-ance with the manufacturer's recommendations.

The Surveillance Requirements for demonstrating the OPERABILITY of the station batteries are based on the recommendations of Regulatory Guide 1.129, i

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

Verifying average electrolyte temperature above the minimum for which the battery was sized, total battery terminal voltage on float charge, connection i

resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high i

discharge rates and comparas the battery capacity at that time with the rated l

capacity.

i j

Table 4.8-3 specifies the normal limits for each designated pilot cell and each connected cell for electrolyte level, float voltage and specific gravity.

The limits for the designated pilot cells float voltage and specific gravity, greater than 2.13 volts and 0.015 below the manufacturer's full charge specific gravity or a battery charger current that 'Nd stabilized at a low value, is characteristic of a charged cell with adequate capacity. The normal limits for each connected cell for float voltage and specific gravity, greater

~

than 2.13 volts and not more than 0.020 below the manufacturer s full charge specificgravitywithanaveragespecificgravityofalltheconnectedcells not more than 0.010 below the manufacturer s full charge specific gravity, j

ensures the OPERABILITY and capability of the battery.

Operation with a battery cell's parameter outside the normal limit but within the allowable value specified in Table 4.8-3 is permitted for up to 7 days.

During this 7-day period:

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

within an acceptable limit; and (4) the allowable value for an individual cell's float voltage, greater than 2.07 volts, ensures the battery's capability to perform its design function.

CATAWBA - UNITS 1 & 2 8 3/4 8-2 Amendment No.

(Unit 1)

Anodment No.

(Unit 2)

._-