Text

Amends 184 & 165 to Licenses NPF-4 & NPF-7,respectively, Modifying Requirement for Operability Testing of EDG When Alternate Safety Buses EDG Inoperable
	ML20070J441
Person / Time
Site:	North Anna
Issue date:	07/18/1994
From:	Mccree V; Office of Nuclear Reactor Regulation
To:	;
Shared Package
ML20070J444	List: ML20070J441;
References
	NUDOCS 9407250115
	Download: ML20070J441 (16)
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UNITED STATES Q %,,

NUCLEAR REGULATORY COMMISSION g

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WASHINGTON, D.C. 20555 4001 VIRGINIA ELECTRIC AND POWER COMPANY OLD DOMINION ELECTRIC COOPERATIVE DOCKET NO. 50-338 NORTH ANNA POWER STATION. UNIT NO. 1 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No. 184 License No. NPF-4 1.

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

A.

The application for amendment by Virginia Electric and Power Company et al., (the licensee) dated March 1,1994, and as supplemented by letter dated June 16, 1994, 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; e

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.

9407250115 940718 PDR ADOCK 05000338 P

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. 2.

Accordingly, the license is amended by changes to the Technical Speci-fications as indicated in the attachment to this license amendment, and paragraph 2.D.(2) of Facility Operating License No. NPF-4 is hereby amended to read as follows:

(2) Technical Specifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No.184, 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 its date of issuance and shall be implemented within 30 days.

FOR THE NUCLEAR REGULATORY COMMISSION

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f,,hg Victor M. M Cree,. Acting Director Project Director te 11-2 Division of Reac or Projects - I/II Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance: July 18, 1994

ATTACHMENT TO LICENSE AMENDMENT NO. 184 TO FACILITY OPERATING LICENSE NO. NPF-4 DOCKET NO. 50-338

' Replace the following pages of the Appendix "A" Technical Specifications with the enclosed pages as indicated. The revised pages are identified by

. amendment number and contain vertical lines indicating the area of change.

Remove Paaes Insert Paagi 3/4 8-1 3/4 8-1 3/4 8-2 3/4 8-2 3/4 8-3a 3/4 8-3a 3/4 8-3c 3/4 8-3c a

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3/4 8 El ECTRICAL POWER SYSTEMS t

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 Class IE distribution system, and b.

Two separate and independent diesel generators:

1.

Each with a separate day tank containing a minimum of 750 gallons of fuel, and 2.

A fuel storage system consisting of two underground storage tanks each containing a minimum of 45,000 gallons of fuel (This is a shared system with Unit 2), and 3.

A separate fuel transfer system APPLICABILITY:

MODES 1,2,3 and 4 ACTION a.

With one offsite circuit of 3.8.1.1.a inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.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. Restore the offsite circuit l

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

b.

With one diesel generator of 3.8.1.1.b inoperable, demonstrate the OPERABILITY of the A.C. offsite power sources by performing Surveillance Requirement 4.8.1.1.1.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. If the EDG became inoperable due to any cause other than an inoperable support system, an independently testable component, or preplanned preventative maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE EDG by performing Surveillance Requirement 4.8.1.1.2.a.4 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months *, unless the absence of any potential common mode failure for the remaining diesel generator is demonstrated. Restore the diesel generator to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

"This action is required to be completed regardless of when the inoperable EDG is restored to OPERABILITY.

NORTH ANNA - UNIT 1 3/4 8-1 Amendment No. 87,428 e 184

4 I

FI Ff'TRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION ACTION (Continuedh c.

With one offsite circuit and one diesel generator inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter, and if the EDG became inoperable due to any cause other than an inoperable support system, an independently testable component, or neplanned preventative mamienance or testing, demonstrale the OPERABILTY of the remaining OPERABLE EDG by performing Surveillmace Reqid.wt 4.8.1.1.2.a.4 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months *, unless ths absence of any potential common mode failure for the remaining i

diesel generator is demonstrated.

Restore one of the '

le 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 HCrr ST BY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Restore the other A.C. power source (offsite circuit or diesel generator) to OPERABLE status in accordance with the pmvisions of Section 3.8.1.1 Action Statement a or b, as appropriate with the time req ofimual loss of the remaining m,uirement of that Action Statement based l

operable A.C. power source.

d.

With two of the required offsite A.C. circuits inoperable; restore one of the l

inoperable offsite sources to OPERABLE status withm 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . Following restoration of one offsite source, follow Action Statement a with the time requirement of that Action j

Statement based on the time ofinitialloss of the remaining inoperable offsite A.C.

circuit.

l e.

With two of the above required diesel generators inoperable, demonstrate the OPERABILITY of two offsite A.C. circuits by performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least once pr 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter, restore one of the inoperable diesel generators to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Following restoration of one diesel generator unit, follow Action Statement b with the time requirement of that Action Statement based on the time of initial loss of the remaining inoperable diesel generator.

l "Ihis action is required to be completed regardless of when the inoperable EDG is resemed to OPERABILITY.

NORTH ANNA - UNIT 1 3/48-2 Amendment No.-83, 184 1

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FT FCTRICAL POWER SYSTEMS SURVEILLANCE REOUIREMENTS 4.8.1.1.2 (continued) c.

At least once per 184 days the diesel generator shall be started ** and accelersed to at least 900 rpm in less than or equal to 10 seconds. He generator voltage and frequency shall be 4160 420 volts and 60i 1.2 Hz within 10 seconds after the start signal. he generator shall be manually synchronimd to its appropriate emergency bus, gradually loaded ** to an indicated 2500 to 2600 kw*, and operated for at least 60 minutes. De diesel generator shall be started for this test by using one of the following signals on a rotating test basis:

a)

Simulated loss of offsite power by itself.

b)

Simulated loss of offsite power m conjunction with an ESF actuation test signal.

c)

An ESF actuation test signal by itself.

This test, ifit is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.4, may also serve to concunently meet those requirements as well.

d.

At least once per 18 months during shutdown by:

i 1.

Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service.

l 2.

Verifying that, on rejection of a load of greater than or equal to 610 kw the voltage and frequency are maintained with 4160 420 volts and 60 1.2 Hz.

3.

Verifying that the load sequencing timers are OPERABLE with times within the tolerances shown in Table 4.8-1.

l 1

This test shall be conducted in accordance with the manufacturer's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading l

recommendations.

His band is meant as guidance to avoid routine overtaa ng of the engine. Imds in excess of this band for special testing under direct monitoring of the manufacturer or momentary variations due to changing bus loads shall not invahdate the test.

NORTH ANNA -UNIT 1 3/4 8-3a Amendment No. 83 184 l

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ELECTRICAL POWER SYS' EMS SURVEILLANCE REOUIREMENTS 4.8.1.1.2 (Continued) 7.

Verifying the diesel generator operates" for at least 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 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 an indic=8ari target value of 2950 kw (between 2900-3000 kw)*" and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this est, the diesel generator shall be loaded to an indicated 2500 2600 kw*".

l 8.

Verifying that the auto-connected loads to each diesel generator do not exceed the 2000 hour0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months rating of 3000 kw.

9.

Verifying the diesel generator's capability to:

a)

Synchronize with the offsite power source while the generator is loaded with its emagencyloads upon a simulated restoration of offsite power, l

b)

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

Proceed through its shutdown==w.

10.

Verifying that the folk, wing diesel generator lockout features prevent diesel generator starting only when required:

a)

Remote local Selector Switch b)

Emergency Stop Switch l

11.

Verifying the diesel generator's hot restart capability by:

l a)

Operating the diesel generator ** loaded to an indicated 2500 to 2600 kw"* for 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or until operating temperatures have stabilized, 1

and i

b)

Within 5 minutes of shutdown verify the diesel generator can be started ** and accelerated to at least 900 m in less than or equal to 10 seconds. The generator voltage and uency shall be 41601 420 volts and 60 1.2 Hz within 10 after the start signal.

e.

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 diesel generators accelerate to at least 900 rpm in less than or equal to 10 marnaris.

This test shall be conducted in accordance with the manufacantr's recommendations regarding engine prelube and warmup procedures, and as applicable regarding loading mmenrtannna.

" This test band is meant as guidance to avoid routine overloading of the engine. Imeds in excess of this band for special testing under direct monitoring of the manufacturer or m= =--y varianons due to changing bus loads shall not invalidase this est.

NORTH ANNA-UNIT 1 3/4 8-3c Amendment No. 83,145 184

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UNITED STATES l'

NUCLEAR REGULATORY COMMISSION

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WASHINGTON, D.C. 20555-0001 VIRGINIA ELECTRIC AND POWER COMPANY OLD DOMINION ELECTRIC COOPERATIVE DOCKET N0. 50-339-NORTH ANNA POWER STATION. UNIT NO. 2 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.165 License No. NPF-7 1.

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

A.

The application for amendment by Virginia Electric and Power Company et al., (the licensee) dated March 1,1994, and as supplemented by letter dated June 16, 1994, 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 i

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 (1) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be ~

conducted in compliance with the Commission's regulations; D.

The issuance of this amendment will.not be inimical to the connon 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.

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I l 2.

Accordingly, the license is amended by changes to the Technical Speci-fications as indicated in the attachment to this license amendment, and paragraph 2.C.(2) of Facility Operating License No. NPF-7 is hereby amended to read as follows:

(2) Technical Soecifications The Technical Specifications contained in Appendices A and B, as revised through Amendment No. 165, 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 its date of issuance and shall be implemented within 30 days.

FOR TBE'RUCLEAR REGULATORY COMMISSION

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??but Victor M. McCree, cting Director Project Directorate II-2 Division of Reactor Projects - I/II l

Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance: July 18, 1994 a

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ATTACHMENT TO LICENSE AMENDMENT NO. 165 TO FACILITY OPERATING LICENSE NO. NPF-7 DOCKET N0. 50-339 t

. Replace the following pages of the Appendix "A" Technical Specifications with the enclosed pages as indicated. The revised pages are identified by amendment numbar and contain vertical lines indicating the area of change.

.The corresponding overleaf page is also provided to maintain document completeness.

Remove Paaes Insert Paaes 3/4 8-1 3/4 8-1 3/4 8-2 3/4 8-2 3/4 8-4 3/4 8-4 3/4 8-5 3/4 8-5 3/4 8-6 3/4 8-6

ELECT'!OAL POWER SYSTEMS 3/4.8 E.

OTRICAL POWER SYSTEMS 3/9.8.1 A C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.8.1.1 As a minirnum, the following A.C. electrical power sources shall be OPERABLE:

a Two physically independent circuits between the offsite transmission network ard the onsite Class IE distribution system, and b.

Two separate and independent diesel generators:

1.

Each with a separate day tank containing a minimum of 750 gallons of fuel, and 2.

A fuel storage system consisting of two underground storage tanks each containing a minimum of 45,000 gallons of fuel (This is a shared system with Unit 2), and 3.

A separate fuel transfer system.

APPLICAB1UTY:

MODES 1,2,3 and 4 ACTION a.

With one offsite circuit of 3.8.1.1.a inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirement 4.8.1.1.1.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. Restore the offsite circuit l

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

With one diesel generator of 3.8.1.1.b inoperable, demonstrate the OPERABILITY of the A.C. offsite power sources by performing Surveillance Requirement 4.8.1.1.1.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. If the EDG became inoperable due to any cause other than an inoperable support system, an independently testable component, or preplanned preventative maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE EDG by performing Surveillance Requirement 4.8.1.1.2.a.4 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months *, unless the absence of any potential common mode failure for the remaining diesel generator is demonstrated. Restore the diesel generator to OPERABLE status within 72 hours8.333333e-4 days 0.02 hours 1.190476e-4 weeks 2.7396e-5 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months .

This c. ion is required to be completed regardless of when the inoperable EDG is restored to OPERAalLITY.

NORTH ANNA-UNIT 2 3/4 8-1 Amendment No. 48, -112, 165

ELECI1UCAL POWER SYS'IEMS LIMITING CONDITION FOR OPERATION ACTION (Continuedh c.

With one offsite circuit and one diesel gencirator inoperable, demonstrate the 1

OPERABILITY of the remaining A.C sources by gJweing Serveillance

{

Requirement 4.8.1.1.1.a within one hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter, i

and if the EDG became inoperable due to any cause other than an inoperable support system, an independently testable component, or pseplanned pseventative maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE EDG by performing Surveillmann Requirement 4.8.1.1.2.a.4 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months *, unless the absence of any posential common mode failure for the remaining 4

diesel generator is demonstrated. Restcut one of the le 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 ST BY witida the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Restore the other A.C power source (offsite circuit or diesel generator) to OPERABLE status in accordance with the provisions of Section 3.8.1.1 Action Stamment a or b, as appropriate with the time requuement of that Action Statement based on the time of initial loss of the remaining inoperable A.C power source.

l d.

With two of the required offsite A.C circuits inoperable; restore one of the l

inoperable offsite sources to OPERABLE status within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months . Following restoration of one offsite

-I source, follow Action Statement a with the time requirement of that Action Statement based on the time ofinitialloss of the remaimng inoperable offsite A.C circuit.

l With two of the above required diesel generators inoperable, demonstrate the e.

OPERABILITY of two offsite A.C circuits by. performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter, restore one of the inoperable diesel generators to OPERABLE status within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days 0.00833 hours 4.960317e-5 weeks 1.1415e-5 months . Following restoration of one diesel generator unit, follow Action Statement b with the time requirement of that Action Statement based on the time of initial loss of the remaining inoperable desel generator.

l This action is required to be completed regardless of when the inoperable EDG is restored to OPERABILITY.

NORTH ANNA-UNIT 2 3/4 8-2 Amendtnent No.-48,70 165

m, ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required physically independent circuits between I

the offsite transmission network and the onsite Class lE distribution system shall be:

a.

Determined OPERABLE at least once per 7 days by verifying correct breaker alignment indicating power availability.

b.

Demonstrated OPERABLE at least once per 18 months during shutdown by manually transferring the onsite Class lE 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 4.8.2 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 pump can be started and transfers fuel from the storage system ta the day tank.

4.

Verifying the diesel generator can start ** and gradually accelerate to synchronous speed (900 rpm) with generator voltage and frequency at 4160 + 420 volts and 60 + 1.2 Hz.

Subsequently, verifying the generator is synchronized, gradually loaded ** to an indicated 2500-2600 kW*** and operates for at least 60 minutes.

5.

Verifying the diesel generator is aligned to provide standby l

power to the associated emergency buses.

b.

At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank obtained as a DRAIN sample in accordance with ASTM-D270-65, is within the acceptable limits specified in Table 1 of ASTM D975-74 when checked for viscosity, water and sediment.

c.

At least once per 184 days the diesel generator shall be started **

and accelerated to at least 900 rpm in less than or equal to 10 seconds. The generator voltage and frequency shall be 4160 + 420 volts and 60 + 1.2 Hz within 10 seconds after the start signal.

~

- This test shall be conducted in accordance with the manufacturer's recommen-dations regarding engine prelube and warmup procedures, and as applicable regarding loading recommendations.

- - 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 of the manufacturer or momentary variations due to changing bus loads shall not invalidate the test.

NORTH ANNA - UNIT 2 3/4 8-3 Amendment No. 48

I ELECIRICAL POWER SYSTEMS SURVEILLANCE REOUIREMENTS

'4.8.1.1.2 (continued)

The generator shallbe manually synchronized toits appropriate emergency bus, gradnally loaded ** to an indicated 2500 to 2600 kw***, and opesused ihratteest l

60 minutes. The diesel generator shall be started for this test by using one of the following signals on a rotating test basis:

a)

Simulated loss of offsite power by itself.

I b)

Simulated loss of offsite powerin conjunction with an ESF actuation test signal.

c)

An ESF actuation test signal by itself.

This test, if it is performed so it mieidas with the testing mquired by Surveillance Requirement 4.8.1.1.2.a.4, may also serve to concurrently meet those requirements l

as well.

d.

At least once per 18 months during shutdown by:

1.

Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service.

2.

Verifying that, on rejection of a load of greater than or equal to 610 kw the voltage and frequency are maintained with 41601420 volts and 6011.2 Hz.

3.

Verifying that the load sequencing timers are OPERABLE with times within the tolerances shown in Table 4.8-1, 4.

Simulating a loss of offsite power by itself, and:

a)

Verifying de-energization of the emergency busses and load shedding from the emergency busses.

b)

Verifying the diesel starts ** on the auto-start signal, energizes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-connected shutdown loads throup the sequencing timers and operates for pester than or equal to 5 mmutes while its generator is loaded with the shutdown loads. After energization of these loads, the steady state voltage and frequency shall be maintained at 41601420 volts and 6011.2 Hz.

This test shall be conducted in accordance with the manufacturer's recommendations ape prelube and warmup procedures, and as applicable regarding loading re

- - This band is meant as guidaw: to avoid routine overloading,of the engine. I. cads in excess of this band for special testing under direct monitonnJ of the manufacturer or momentary variariana due to changing bus loads shall not invalk see the test.

NORTH ANNA-UNIT 2 3/48-4 Amendment No.70 165

S

A Ff'rRICAL POWER SYS~ IBIS SURVEILLANCE REOUIREMENTS 4.8.1.1.2 (Continued) 5.

Ven'fying that on an ESF actuation test signal (without loss of power) the diesel generator stans** on the auto-start signal and operases on standby for greater than orequal to 5 minutes 6.

Simulating a loss of offsite power in conjunction with an ESF actuation test signal, and a)

Verifying de-energization of the emergency busses and load shedding from the emroney busses.

b)

Verifying the diesel stuts** on the auto-start signal, energimes the emergency busses with permanently connected loads within 10 seconds, energizes the auto-canned emergency (accident) loads through the sequencing timers and operates for greater than or equal to 5 minutes and maintains the steady state voltage and hqececy at 4160 420 volts and 60i 1.2 Hz.

c)

Verifying that all diesel generator trips, except engine overspeed, generator differential and breaker overcurrent are automatically bypassed upon loss of voltage on the emergency bus and/or a safety injection actuation signal.

7.

Verifying the diesel generator operates" for at least 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 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 an indicated target value of 2950 kW (between 2900-3000 kw)*" and during the remaining 22 hours2.546296e-4 days 0.00611 hours 3.637566e-5 weeks 8.371e-6 months of this test, the dieselgenerator shall beloaded to an indicated 2500-2600 kW"*.

l 8.

Verifying that the auto-connected loads to each diesel generator do not exceed the 2000 hour0.0231 days 0.556 hours 0.00331 weeks 7.61e-4 months rating of 3000 kw.

9.

Verifying the diesel generator's capability to:

a)

Synchronize with the offsite power source while the generator is loaded with its emergency loads upon a simulated or actual restoration of offsite power.

b)

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

Proceed through its shutdown sequence.

.This test shall be conducted in accordance with the manufacturer's recommendations regardmg prelube and warmup procedures, and as applicable reganiing loading smwn g,

g3..g

" *ibls test band is meant as guidance to avoid routine overloading of the engine. Imla in excess of this band for special testing under direct monitoring of the manufacturer or nwunnarary variations due to changing bus lo ads shall not invalidans this aust. m.

NORTH ANNA - UNIT 2 3/48-5 A rnesvirness No. 42, 48 g

165 e

I ELECIRICALPOWER SYSTEMS SURVEILLANCE REOUIREMENTS 4.8.1.1.2 (Continued) 10.

Verifying that the following diesel generasor lockout feannes prevent diesel generator starting only when required:

a)

Reenote 1Acal hiectiari Switch b)

Emergency Stop Switch 11.

Verifying the diesel generator's hot restart capability by:

a)

Operating the diesel generator" Inaded to an indicated 2500 to 2600 kW*** for 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or until opersting temperatures have stabilized, and b)

Within 5 minutes of shutdown v the diesel generator can be started" and accelerated to atleast in less than orequal to i

10 seconds. The generator voltage and uency shall be 4160i 420 volts and 60i 1.2 Hz within 10 seconds after the start signal.

e.

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

generator interde during shutdown,pendence by starting " both diesel generators simultaneou and verifying that both diesel generators accelerate to at least 900 rpm in less than or equal to 10 wands.

4.8.1.1.3 Each diesel generator 125-volt battery bank and charger shall be demonstrated OPERABLE:

a.

At least once per 7 days by verifymg that:

l.

De parameters in Table 4.8-3 meet Category A limits and 2.

The total battery terminal voltage is 2: 129 volts on a float change.

b.

At least once per 92 days and within 7 days after a battery discharge where the

)

battery serminal voltage decreased below 110 volts or battery overcharge above 150 volts, by verifying that:

1.

De parameters in Table 4.8-3 meet Category B limits and 2.

There is no visible corrosion at either terminals or connectors, or the connection resistance of these items is less than 150 X 10 to the minus 6 ohms.

1 nis test shall be conducted in accordance with the manufacturer's recommendations regardmg prelube and warmup procedures, and as applicable regarding loading rm

Dis test band is meant as gnMa= to avoid routine overloading of the engine. Imeds in excess of this band for special testing under direct monitoring of the manufacturer or mamantary variations due to changing bus loads shall act invalidans this anst...

NORDI ANNA-UNIT 2 3/48-6 g

No.48r44

.- -

ML20070J441

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