ML20087N625

Amend 16 to License NPF-11,changing Tech Specs Re Requirements for Fast Starts on Diesel Generators to Be Consistent W/Unit 2 Tech Specs

ML20087N625
Person / Time
Site:	LaSalle
Issue date:	03/19/1984
From:	Schwencer A Office of Nuclear Reactor Regulation
To:
Shared Package
ML20087N626	List: ML20087N625 ML20087N627
References
NUDOCS 8404040106
Download: ML20087N625 (9)

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COMMONWEALTH EDISON COMPANY DOCKET NO. 50-373 LA SALLE COUNTY STATION, UNIT 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 16 License No. NPF-11 1.

The Nuclear Regulatory Commission (the Commission or the NRC) having found that:

A.

The application for amendment filed by the Commonwealth Edison Company, dated December 9, 1983 and January 11, 1984, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's regulations set forth in 10 CFR Ch' apter I; ThehadilitywilloperNteinconformitywiththeapplication,the B.

provisions of the Act, and the 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 set forth in 10 CFR Chapter I; D.

The issuance of this amendment wi?? 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 Conmission's regulations and all appl'icable requirements have been satisfied.

2.

Accordingly, the license is aminded by changes to the Technical Specifi-

~ catio~ns as indicated in the attachment to this license amendment and paraWaph2.C.(2)oftheFacilityOperatingLicenseNo.NPF-11ishereby amsndod to read as follows:

(2) T1chnicalSpecificatf$nsandEnvironmentalProtectionPlan

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Th'e Technical Specifications contained in Appendix A, as revised through Amendment No. 16, and the Environmental Protection Plan contained in Appendix B, are hereby incorporated in the license.

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The licensee shall operate the facility inlaccordance.with the-Technical Specifications and the Environdiental Protection Plan.

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This amendment is effective as of March 19,1984.

FOR THE NUCLEAR REGULATORY COMMISSION 0Iigiglwgdpp I

A. Schwencer, Chief Licensing Branch No. 2 Division of Licensing

Attachment:

Changes to the Technical Specifications Date of Issuance: March 19,1984 h

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- ATTACHMENT TO LICENSE AMENDMENT NO. 16 FACILITY OPERATING LICENSE NO. NPF-11 DOCKET NO. 50-373-Replace the following'pages of the Appendix "A" Technical Specifications with

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the enclosed pages. :The revised.pages are identified by Amendment number and contain vertical lines: indicating the area of change.

REMOVE'-

INSERT

'3/4 8-1 3/4 8-1 3/4'8-2 3/4 8-2 O-3/4 8-3 3/4 8-3 3/4 8-7

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f 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES A.C. SOURCES - OPERATING L,IMITING 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 Class 1E distribution system, and b.

Separate and independent diesel generators 0, 1A, 2A and 1B with:

1.

For diesel generator 0, 1A and 2A:

a)

A separate day fuel tank containing a minimum of 250 gallons of fuel.

b)

A separate fuel storage system containing a minimum of 31,000 gallons of fucl.

2.

For diesel generator IB, a separate' fuel storage tank / day tank containing a minimum'of 29,750 gallons of fuel.

3.

A separate ~ fuel transfer pump.

APPLICABILITY: OPERATIONAL CONDITIONS 1,.2,'and 3.

ACTION:

'With either one'offsite circuit or diesel generator 0 or 1A of the a.

above required A.C. electrical power sources inoperable, demonstrate

the OPERABILITY of'the remaining A.C. sources by performing Surveil-lance Requirements 4.8.1.1.la within one hour, and 4.8.1.1.2a.4, for.one diesel generator at a time, within eight hours, 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 two offsite circuits and diesel generators 0 and 1A 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 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD-SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, b.

With one offsite circuit and diesel. generator 0 or 1A.of the above required A.C.' electrical power ~ sources inoperable,fdemonstrate the.

OPERABILITY of the remaining A.C. sources byLperforming Surveillance Requirements 4.8.1.1.la within one hour, and 4.8.1.1.2a.4,1for one

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diese1' generator.at a time, within-six hours, and_at least once per-8 hours thereafter; restore'at~least1one of.the inoperable A.C.

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sources to' OPERABLE status within-12 hou'rs or.be'in'atileast' HOT SHUTDOWN within'the:next 12: hours and'in COLD SHUTDOWN within the -

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

Restore at.-least two offsite. circuits and diesel generators O_andLIA'to OPERABLE; status within-72' hours from the. time'of1 initial loss or be in at.least-HOT SHUTDOWN within the anextil2 hours and.in COLD SHUTDOWN within the following.24_ hours.

LA SALLE -LUNIT 1 13/4-8-1~

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- Amendment:No s /16 '

ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION (Continued)

ACTION (Continued) c.

With both of the above required offsite circuits inoperable, demon-strate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.2a.4, for one diesel generator at a time, within eight hours, 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 /> thereaf ter, l

unless the diesel generators are already operating; restore at least one of the inoperable offsite circuits 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 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

With only one offsite circuit restored to OPERABLE status, 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 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

d.

With diesel generators 0 and 1A of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remain-ing A.C. sources by performing Surveillance Requirements 4.8.1.1.la within one hour and 4.8.1.1.2a.4, for one diesel generator at a time, within four hours 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; g

restore at least one of the inoperable diesel generators 0 and 1A 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 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUT 00WN within the following 24-hours.

Restore both diesel generators 0 and 1A 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 SHUTDOWN within the next 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> and in COLD SHUTDOWN within the following 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

With diesel generator 18 of the above required A.C. electrical power e.

sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by perfcrming Surveillance Requirements 4.8.1.1.la within one hour, and 4.8.1.1.2a.4, for one diesel generator at a time, within six hours, 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; 4

restore the inoperable diesel generator 1B 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 declare the HPCS system inoperable and take the ACTION required by-Specification 3.5.1.

f.

With diesel generator 2A of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.la.

within-one hour and 4.8.1.1.2a.4, for diesel generator 1A, within l -

two hour, 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 the '

inoperable diesel generator 2A to.0PERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or declare standby gas treatment system subsystem 8, Unit 2 drywell and suppression chamber hydrogen recombiner system, and control-room and auxiliary electric equipment room emergency filtration system train B inoperable and take the ACTION required by Specifica-tions 3.6.5.3, 3.6.6.1., and 3.7.2.

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-LA SALLE - UNIT 1 3/4 8-2 Amendment ' No. 16.

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f ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

a.

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

Demonstrated OPERABLE at least once per 18 months during shutdown by manually transferring unit power supply from the normal circuit to the alternate circuit.

4.8.1.1.2 Each of the above required diesel generators shall be demonstrated OPERABLE:

a.

In accordance with the frequency specified in Table 4.8.1.1.2-1 on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day fuel tank.

2.

Verifying the fuel level in the fuel storage tank.

3.

Verifying the fuel transfer pump starts and transfers fuel from the storage system to the day fuel tank.

4.

Verifying the diesel starts from ambient condition and accelerates to 900 rpm + 5%, -2% in less than or equal to ?3 seconds.* The I

generator voltage and frequency shall be 4160 1 150 volts and 60 + 3.0, -1.2 Hz within 13 seconds

• after the start signal.

I 5.

Verifying the diesel generator is synchronized, loaded to greater than or equal to 2600 kw within 60 seconds,* and operates with l

this load for at least 60 minutes.

6.

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

7.

Verifying the pressure in all diesel generator air start receivers to be greater than or equal to 200 psig.

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 I hour by checking for and removing accumulated water from the day fuel tanks.

c.

At least once per 92 days and from new fuel oil prior to addition to the storage tanks by verifying that a sample obtained in accordance with ASTM-D270-1975 has a water and sediment content of less than or equal to 0.05 volume percent and a kinematic viscosity @ 40 C of greater than or equal to 1.9 but less than or equal to 4.1 when tested in accordance with ASTM-D975-77, and an impurity level of less than 2 mg. of insolubles per 100 ml. when tested in accordance with ASTM-D2274-70.

^These diesel generator starts 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 shall be preceded by an engine prelube period and/or other warmup procedures recommended by the manufacturer so that mechanical stress and wear on the diesel engine is minimized.

LA SALLE - UNIT 1 3/4 8-3 Amendment No.16

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ELECTRICAL POWER SYSTEMS j.

SURVEILLANCE REQUIREMENTS (Continued) i e.

At least once per 10 years or after any modifications which could

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affect diesel generator interdependence by starting diesel gener-ators 0, lA and 1B simultaneously, during shutdown, and verifying that all three diesel generators accelerate to 900 rpm + 5, -2% in less than or equal to 13 seconds.

f.

At least once per 10 years by:

i 1.

Draining each fuel oil storage tank, removing the accumulated-I sedimant and cleaning the tank using a sodium hypochlorite or i

equivalent solution,-and i

2.

Performing a pressure. test of those portions of the diesel fuel oil system designed to Section III, subsection ND, of the ASME Code in accordance with ASME Code Section 11, Article IWD-5000.

4.8.1.1.3 Reports --All diesel generator failures, valid or non-valid, shall be reported to the Commission pursuant to Specification 6.6.B.

. Reports of i

diesel generator failures shall include the information recommended in Regula-I tory Postion C.3.b of Regulatory Guide 1.108, Revision 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 i

additional information recommended in Regulatory Position c.3.b of Regulatory Guide 1.108, Revision 1, August 1977.

TABLE 4.8.1.1.2-1 DIESEL GENERATOR TEST SCHEDULE Number of Failures in-l Last 100 Valid Tests *

' Test Frequency

<1 At.least oncelper 31 days 2

At least once'per 14 days e

3-At leastronce per 7 ' days

>14 At least1once per 3 days i

" Criteria for determining number of failures and. number of valid; tests shall be:in accordance with Regulatory; Position C.2.e off Regulatory Guide 1.108, Revision,1, August 1977, whereJthe.last-100 tests are determined lon.a per nuclear unit basis. 'With the-exception'of the semi-annual fast start, no. starting time're-quirements.are required:to meet the valid ~ test. requirements ~of

. Regulatory Guide 1.108.

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.LA SALLE

. UNIT 1:

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Amendment No.;16-

ELECTRICAL POWER SYSTEMS REACTOR PROTECTION SYSTEM ELECTRICAL POWER MONITORING LIMITING CONDITION FOR OPERATION 3.8.3.4 Two RPS electric power monitoring assemblies for each inservice RPS MG set or alternate power supply shall be CPERABLE.

APPLICABILITY:

At all times.

ACTION:

a.

With one RPS electric power monitoring assembly for an inservice RPS MG set or alternate power supply inoperable, restore the inoperable power monitoring assembly 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 remove the associated RPS MG set or alternate power supply from service.

b.

With both RPS electric power monitoring assemblies for an inservice RPS MG set or alternate power supply inoperable, restore at least one electric power monitoring assembly to OPERABLE status within 30 minutes or remove the associated RPS HG set or alte nate power supply from service.

SURVEILLANCE REQUIREMENTS 4.8.3.4 The above specified RPS electric power monitoring assemblies shall be determined OPERABLE:

By performance of a CHANNEL FUNCTIONAL TEST each time the plant is in.

a.

COLD SHUTDOWN for a period of more than-24 hours, unless performed in the previous 6 months.

b.

At least once per 18 months by demonstrating the OPERABILITY of over-voltage, under-voltage, and under-frequency protective instrumentation by performance of a CHANNEL CALIBRATION including simulated automatic actuation of the protective relays, tripping logic and output circuit breakers and verifying the following setpoints.

1.

Over-voltage < 132 VAC, 2.

Under-voltage 1 108 VAC, 3.

Under-frequency 2 57 Hz.

-LA SALLE - UNIT 1 3/4 8-31 Amendment No.-16,

3/4.8 ELECTRICAL POWER SYSTEMS BASES 3/4.8.1 and 3/4.8.2 A.C. SOURCES and ONSITE POWER DISTRIBUTION SYSTEMS The OPERABILITY of the A.C. and'D.C. power sources and associated distribution 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 aistribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR 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 accident analyses and are based upon maintaining at least Division I or II of the 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 one of the two onsite A.C. sources.

Division III supplies the high pressure core spray (HPCS) system only.

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 extended time periods and (2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.

The surveillance requirements for demonstrating the OPERABILITY of the diesel generators are in accordance with the recommendations of Regulatory Guide 1.'3, " Selection of Diesel Generator Set Capacity for Standby Power Sup-plies," March 10, 1971, with the exception noted in Appendix B to the FSAR, and Regulatory Guide 1.108, " Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1, August 1977.

The diesel generator fast start surveillance requirements, based on a PRA study, are sufficient to demonstrate the or, site A.C. power system capability to mitigate the consequences of the design basis event for the plant, i.e., large LOCA coinciuent with a loss-of-of fsite power, while minimizing the mechanical stress and wear on the diesel engine.

The surveillance requirements for demonstrating the OPERABILITY of the uait batteries are in accordance with the recommendations of Regulatory Guide 1.129, " Maintenance Testing and Replacement of Large Lead Storaa,e 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 Station and Substations."

Verifying average electrolyte tempera'.1re above the minimum for which the battery was sized, total battery terminal soltage onfloat charge, connection resistance values and the performance of battery service and discharge tests ensures the effectiveness of the charging system, the ability to handle high discharge rates and compares the battery capacity at that time with the rated capacity.

LA SALLE - UNIT 1 0 3/4 8-1 Amendment No. 16