Text

Proposed Tech Specs Re Changes Incorporating Recommendations of GL 93-05 Re DG SR & Other DG SR Concerning Cold Start
	ML20078Q034
Person / Time
Site:	Millstone
Issue date:	12/09/1994
From:	; NORTHEAST NUCLEAR ENERGY CO.
To:	;
Shared Package
ML20078Q033	List: B14971, Application for Amend to License NPF-49,incorporating Changes Recommended in GL 93-05 Re DG SR & Other DG SR Concerning Cold Starts; ML20078Q034;
References
	GL-93-05, GL-93-5, NUDOCS 9412210121
	Download: ML20078Q034 (19)
	v • d • e

.

,a Docket No. 50-423 B14971 Millstone Nuclear Power Station, Unit No. 3 Proposed Revision to Technical Specifications Diesel Generator Surveillance Requirements Marked-Up Pages December 1994 oj221o121 941209 p

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Q' 3/4.8 ELECTRICAL POWER SYSTEMS

'3/4.3.1 A.C. SOURCES OPERATIM LIMITING COMITION 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 i

network and the onsite Class 1E Distribution System, and b.

Two separate and indeper. dent diesel generators, each with:

j 1)

A separate day tank containing a minimum volume of 278 gallons j

of fuel, 2)

A separate Fuel Storage System containing a minimum volume of 32,760 gallons of fuel, 3)

A separate fuel transfer pump, 4)

Lubricating oil storage containing a minimum total volume of l

280 gallons of lubricating oil, and 5)

Capability to transfer lubricating oil from storage to the diesel generator. unit.

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

O '

ACTION:

a.

With one offsite circuit i operable, demonstrate the OPERABILITY of the remaining A.C. sourc y performing Surveillance Requirement

_4.8.1.1.1.a within I hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter.

lIf either diesel generator has not been successfully tested within gJ the past 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months , demonstrate its OPERABILITY by perfoming

--+

Surveillance Requirement 4.8.1.1.2.a.5 separately for each such diesel annarator within 24 haurc-! Restore the offsite circuit 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 i

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 inoperable, demonstrate the OPERABILITY of the A.C. offsite sources by perfoming Surveillance Requirement t

4.8.1.1.1.a within I hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; gM anc 1f the diesel generator became inoperaois due to.any cause otherP than orsolanand ?reventative =mia+=ese~ or testina.1 demonstrate the 1'0PERABIllTY of tie remaining OPERABLE diesel generator by perfoming i

Surveillance Requirement 4.8.1.1.2.a.5 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months *; 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 i

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

g ;c e.1 W e d 1

ThlrtFst is required to be completed regardless of when the inoperablj O

' diesel generator is restored to OPERABILITY.

NILLSTONE - UNIT 3 3/4 8-1 Amendment No. pp 97

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3/09/92 ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERATION i

ACTION (continued) gpsu e, c.

With one offsite circuit and one. diesel gener tor inoperable, demonstrate the OPERABILITY of the remaining

.C. sources by perfoming 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;iano if e,he diesel generatok N '

Ioecame InoperabTe sue to any cause other_.than_prealanned i

br.arentativt_atiat.enamt_pritatin3Jdemonstrate the OPERABILITY of the remaining OPERABLE diesel generator by perfoming Surveillance Requirement 4.8.1.1.2.a.5 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months *; restore one of the inoperable 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 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 fo? lowing 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 0*ERABLE status in

^

accordance with the provisions of Section 3.8.1.1 Action Statement a or b, as appropriate with the time requirement of that Action Statement based on the time of initial loss of the remaining t

inoperable A.C. power source. A successful test of diesel generator i

OPERABILITY per Surveillance Requirement 4.8.1.1.2.a.5 performed under this Action Statement for an OPERABLE diesel generator or a restored to CPERABLE diesel generator satisfies the diesel generator test requirement of Action Statement Q b.Delet-c.

g d.

With one diesel generator inoperable, in addition to ACTION b or c above, verify that:

1.

All required systems, subsystems, trains, components, and devices that depend on the remaining 0PERABLE diesel generator as a source of emergency power are also OPERABLE, :.nd 2.

When in MODE 1, 2, or 3, the stean driven auxiliary feedwater pump is OPERABLE.

If these conditions are not satisfied within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , 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 l

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

Deff e.

R._.

With two of the required _offsite_A_.C.

ircuits_ inoperable. hemon-e.

strate the OPERKBTOTY of two diesel ganerafors by sequentially performing Surveillance Requirement 4.8.1.1.2.a.5 on both diesel Jener_ators are already i generators within 8_houts unitss the diese1 n

u

)operatino$. restore one of the inoperable offsite sources to OPERABLE status wil.hin 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 $tatement based on the time of initial lo1L9f the romaining inoperable offsitel C 5urveillance Requirement 4.8.1.1.2.a.5 perfomed under thi ejrsu114A successful test (s) of diesel generator OPERXBRITY per Statement for the OPERABLE diesel generators satisfies the__ diesel._:

, generator test requirement of Action Statement a.;

x 7Tnts test is req 5iferto be completed regardless of when the inoperable;

j qiesel generatot_is_tes.tored to_0ERABILITY.--

Y._ ulek und m,I 2 MILLSTONE - UNIT 3 3/4 8 2 Amenement No. 64 ses4

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3/09/92 ELECTRICAL POWER SYSTEMS LIMITING CONDITION FOR OPERAff0N-ACTION fcontinued) f.

With two of the above required diesel generators inoperable, menon-strate 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 per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; restore one of the inoperable diesel tenerators 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 lea TAND8Y within tha next 6 hours6.944444e-5 days 0.00167 hours 9.920635e-6 weeks 2.283e-6 months and in COLD SHUTDOWN within the following30 hours. Following restoration of one diesel generator.

unit, fo low Action Statement b with the time requirement of that Action Statement based on the time of initial loss of the remaining inoperable diesel generator. A successful test of diesel generator OPERABILITY per Surveillance Requirement 4.8.1.1.2.a.5 performed under this Action Statement for a restored to OPERABLE diesel tenerator satisfies the diesel generator test requirement of Action tatement b.

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SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of the above required independent cirepGs between the offsite transmission network and the Onsite Class IE Distributan System shell 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 during shutdown by transferring (manually and automatically) unit power supply from the normal circuit to the titernate circuit.

4.8.1.1.2 Each diesel generator shall be demonstrated OPERA 8LE:"

a.

In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST SASIS by:9 -r>ekk 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 starts and transfers fuel from the storage system to the day tank, 4)

Verifying the lubricating oil inventorgtorage,

,f Veriflin tthe diesel starts from M t> con tions and c(cku,eVC. 5

5) 4ersdgalTyJttalaratenta ai innLisa rne wit generator voltage and frequency at 4160 i 420 volts and 60 1 0.8 Hz. The diese enerator shall be started for this test by using one of the foi owing signals:

a)

Manual, or gg F

.~.c.

Testing shall-trconductedTn ircordance wiWLhe manufacturer's recom-mendationsregardingengineprelubeandwarsupprocedures,andasapp1b)

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3/09/92 YLECTRICAL POWER SYSIDts SURVEILLANCE REDUIREMENTS fcontinued)

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j b)

Simulated less of-of fsite power by itself, er c)

Simulated loss-of-offsite power in conjunction irith an E5F Actuation test signal, or gj d)

An ESF g uationjes g gn g b g s g g _ w.M,y g

6)

Verifying the generator is synchronized and gradually loadedho N

greater than or equal to 4g86 kW and operatestfor at least 60 e

y minutes, and 4 gg g %, %g w pgy 5

7)

Verifying the diesel generator is aligned to provide standby power to the associated emergency busses.jg %%g3' f

b.

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

and accelerated to at least 508 rps in less than or equal to 4

11 seconds. The generator voltage and frequency shall be 4160 i_420 4

volts and 60 n 0.8 Hz within 1 Lits 9nds after theatart signaLohe

' generator sha11 be synchronized to the associ_ated emergency _but, 1

4 loaded _ to greater than or equal to 4986 kW GitJHs than or equal _to) 3 sq_1tgpnUn and operat% or at least 60 minutes. Tne dfesel f

generator shall be star ;ed for this test using one of the signals in a

Surveillance Requirene t 4.8.1.1.2.a.5.

This test,'if it is v

5 performed so it coinct s with the testing required by Surveillance 4

Requirement 4.8.1.1.2.

5, may also serve to concurrently meet those 8

requirements as well.

wh aWJ yder b O

cn ced 4u qq06kW At least once per 31 days and after each operation of the diesel 0

c.

where the period of operation was greater than or equal to I hour by 4

checking for and removing accumulated water from the day tank; d.

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

By sampling new fuel oil in accordance with ASTM 04057 prior to addition to storage tanks and:

By verifying in accordance with the tests specified in ASTM-1)

D975-81 prior to addition to the storage tanks that the sample has:

4 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 cpecific 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 l

greater than or equal to 27 degrees but less than or equal to 39 degrees;

eldt D

Testing shall be conducted in accordance with the manufacturer's recce-)

l mandations regarding engine prelube and warsup procedures, and as j J

plic able_teg at111ng Jpadi ng _requ i rement s.

i MILLSTONE - UNIT 3 3/4 8 4 Amendment No. 4 64 eeia

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12/23/92 ELECTRICALPOWERSYSTEMS; SURVEILLANCE REQUIREMENTS (Continued)

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b)

A kinematic viscosity at 40'C of greater than or equal to 1.9 centistokes, but less than or equal to 4.1 centistokes (alternatively, Saybolt viscosity, SUS at 100*F of greater than or equal to 32.6, but not less than or equal to 40.1), if gravity was not detemined by comparison with j

the supplier's certification; c)

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

A clear and bright appearance with proper color when a

tested in accordance with ASTM-D4176-82.

2)

By verifying within 30 days of obtaining the sample that the other properties specified in Table 1 of ASTM-D975-81 are met when tested in accordance with ASTM-D975-81 except that the

'j analysis for sulfur may be performed in accordance with ASTM-D1552-79, ASTM-D2622-82 or ASTM-D4294-83.

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

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 the generator capability to reject a load of greater than or equal to 595 kW while maintaining voltage at 4169 420 volts and frequency at 60 i 3 Hz; 1)

Verifying the generator capability to reject a load of 4986 kW without tripping. The generator voltage shall not exceed 4784 volts during and following the load rejection; 4)

Simulating a loss-of-offsite power by itself, and:

a)

Verifying deenergization of the emergency busses and load sheddir.g from the emergency bu ses, nd ggns a

cy b)

Verifyingthedieselstarts[o'ntheauto-startsignal, energizes the canrgency busses with permanently connected l

loads within 11 seconds, energizes the auto-connected shutdown loads through the load sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. After energiration, the steady-state voltage and frequency of the emergency busses shall be maintained at 4160 1 420 volts and 6010.8 Hz during this test.

4

Except that the Surveillance Requirement inspection due no later than December 25, 1992 may be deferred until the next refueling outage, but no I

later than September 30, 1993 or whichever is earlier.

G MILLSTONE - UNIT 3 3/4 8 5 Amendment No. f, Jp, pf,73 soir

. - ~.

3/09/92 i

J FtfCTRICAL POWER ih iins i

ELEVEfLLANCE REQUIREMENTS (Centinued)

&~, s%by wak,s I

Verifying that on an ESF Actuation test signa, without loss.

5) of offsite power, the diesel generator starts en the auto start signal and operates on standby for greater &an or equal to 5 e

minutes. The generator voltage and frequency shall be 41601 420 volts and 6010.8 Hz within 11 seconds after the auto-start signal; the steady state generator voltage and frequency i

shall be maintained within these limits during this test; 6)

Simulating a less of-offsite power in conjunction with an ESF Actuation test signal, and.

a)

Verifying deenergization of the emergency busses and load shedding from the emergency busses; cn&hcM i

b)

Verifying the diesel starts the auto start signal, i

t i

energizes the emergency bus es with Mrsanently connected loads within 11 seconds, energizes tte 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 emerpency loads. After energitation, the steady-state vo,tage and frequency of the emergency busses shall be maintained at 4160 1 420 volts and 60 1 0.8 Hz during this test; and c)

Verifying that all automatic diesel generator trips, except engine overspeed, lube oil pressure low (2 of 3 l

logic) and generator differential, are automatically bypassed upon loss of voltage on the emergency bus concur-rent with 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 greater than or equal to 5485 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 diesel generator shall i

be loaded to greater than or equal to 4g86 kW. The generator t

voltage and frequency shall be 4160 2 420 volts and 60 1 0.8 Hz i

within 11 seconds after the start signal; the steady-state

. generator Ctage and frequency shall be maintained within i

these limits during this test.t Within 5 mir.utes after completing this 24-hour test, perform Specification (4,8112._g.I)Di**

1 i

3

% u.s t.t. 2. c @

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If Surveillance RequirementC4T,Ehtigd)b} is not satisfactorily

t completed, it is not necessary to repeat the preceding 24-ho test.

Instead, the diesel generator say be operated at 4986 kW for hour or untti operating temperature has stabilized.

2.

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MILLSTONE - UNIT 3 3/4 8 6 Amendment No. Jp,64 essa

Juna 8,1993 ELECTRicAt POWER SYSTEMS SURVEILLANCE REQUIREMENTS fContinued)

.'i 8)

Verifying that the auto-connected loads to each diesel genera-tor do not exceed the 2000-hour rating of 5335 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 restoration of offsite power, b)

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

Be restored to its standby status.

10) Verifying

that with the diesel generator operating in a test mode, connected to its bus, a simulated Safety Injection signal overrides the test mode by: (1) returning the diesel generator to standby operation, and (2) automatically energizing the emergency loads with offsite power;

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

12) Verifying

that the automatic load' sequence timer is OPERABLE

\\

with the interval between each load block within i 10% of its I

design interval; and V

13) Verifying that the following diesel generator lockout features prevent diesel generator starting:

a)

Engine overspeed, b)

Lube oil pressure low (2 of 3 logic),

c)

Generator differential, and d)

Emergency stop.

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.

diesel generators assehra}s-to-at-least-508-rps-4n-less r"

4 pu % crr equal to 11 seconds; and N gge e, gene.whv vot% nm i

'd

1.

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, and P

Except that the surveillance requirement due no later than June 13, 1993,

[ i may be deferred until the next refueling outage, but no later than September 30, Igg 3, whichever is earlier.

i MILLSTONE - UNIT 3 3/4 8-7 Amendment No. Jf, 79, L

0133

Docket No. 50-423 B14971 Millstone Nuclear Power Station, Unit No. 3 Proposed Revision to Technical Specifications Diesel Generator Surveillance Requirements Retyped Pages l

December 1994

l 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING LINITING ColeITION 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, each with:

1)

A separate day tank containing a minimum volume of 278 gallons of fuel, 2)

A separate Fuel Storage System containing a minimum volume of 32,760 gallons of fuel, 3)

A separate fuel transfer pump, 4)

Lubricating oil storage containing a minimum total volume of 280 gallons of lubricating oil, and 5)

Capability to transfer lubricating oil from storage to the diesel generator unit.

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

l ACTION:

a.

With one offsite circuit inoperable, demonstrate the OPERABILITY of the remaining A.C. source by performing Surveillance Requirement 4.8.1.1.1.a within I hour 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 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 inoperable, demonstrate the OPERABILITY of the A.C. offsite sources by performing Surveillance Requirement 4.8.1.1.1.a within I hour and at least once per 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months thereafter; demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by performing Surveillance Requirement 4.8.1.1.2.a.5 within 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months *; 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 .

The OPERABILITY of the remaining diesel generator need not be verified if the diesel generator became inoperable due to:

(1)

Preplanned preventive maintenance or testing, (2)

An inoperable support system with no potential common mode failure for the remaining diesel generator, or (3)

An independently testable component with no potential common mode failure for the remaining diesel generator.

MILLSTONE - UNIT 3 3/4 8-1 Amendment No. JJ, 77, 0282

i

?

y ELECTRICAL POWER SYSTEMS LIMITING C0lGITION FOR OPERATION ACTION fcontinued) c.

With one offsite circuit and one diesel generator inoperable, demonstrate the OPERABILITY of the remaining offsite A.C. source 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; demonstrate the OPERABILITY of the remaining'0PERABLE diesel generator by performing Surveillance Requirement 4.8.1.1.2.a.5 within 8 hours9.259259e-5 days 0.00222 hours 1.322751e-5 weeks 3.044e-6 months *; restore one of the inoperable 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 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 . Restore the other A.C. power source (offsite circuit or diesel generator) to OPERABLE status in 1

accordance with the provisions of Section 3.8.1.1 Action Statement a or b, as appropriate with the time requirement of that Action i

Statement based on the time of' initial loss of the remaining i

inoperable A.C. power source. A successful test of diesel generator OPERABILITY per Surveillance Requirement 4.8.1.1.2.a.5 performed.

under this Action Statement for an OPERABLE diesel generator or a restored to OPERABLE diesel generator satisfies the diesel generator.

test requirement of Action Statement b.

d.

With one diesel generator inoperable, in addition to ACTION b or c above, verify that:

l 1.

All required systems, subsystems, trains, components, and devices that depend on the remaining CPERABLE diesel generator as a source of emergency power are also OPERABLE, and i

2.

When in NODE 1, 2, or 3, the steam-driven auxiliary feedwater i

pump is OPERABLE.

If these conditions are not satisfied within 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months ,-be in at least l

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 i

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

i e.

With two of the required offsite A.C. circuits inoperable, restore j

one of the 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 .-

l Following restoration of one offsite source, follow Action Statement I

a with the time requirement of that Action Statement based on the time of initial loss of the remaining inoperable offsite A.C.

circuit.

I

The OPERABILITY of the remaining diesel generator need not be verified if the diesel generator became inoperable due to:

'(1)

Preplanned preventive maintenance or testing, (2)

An inoperable support system with no potential common made failure for the f

remaining diesel generator, or (3)

An independently testable component with no potential common mode failure for the remaining diesel generator.

NILLSTONE - UNIT 3 3/4 8-2 Amendment No. pp, om

ELECTRI' CAL POWER SYSTEMS LINITING CONDITION FOR OPERATION AGIl0N fcontinued) f.

With two of the above required diesel generators ino)erable, demon-strate the OPERABILITY of two offsite A.C. circuits )y 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 diesel generator. A successful test of diesel generator OPERABILITY per Surveillance Requirement 4.8.1.1.2.a.5 performed under this Action Statement for a restored to OPERABLE diesel generator satisfies the diesel generator test requirement of Action Statement b.

SURVEILLANCE REQUIRENENTS 4.8.1.1.1 Each of the above required independent circuits between the offsite transmission network and the Onsite Class 1E Distribution 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 during shutdown by transferring (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:*

f a.

In accordance with tne 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 pump starts and transfers fuel from the storage system to the day tank, 4)

Verifying the lubricating oil inventory in storage, 5)

Verifying the diesel starts from standby conditions and achieves generator voltage and frequency at 4160 1 420 volts and 60 1 0.8 Hz. The diesel generator shall be started for this test by using one of the following signals:

a)

Manual, or

All planned starts for the purpose of these surveillances may be preceded by an engine prelube period.

NILLSTONE - UNIT 3 3/4 8-3 Amendment No. Jp, JJ, 0293

m ELECTRICAL N)WER SYSTEMS

~"

SURVEILLANCE REQUIREMENTS (Continued) 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.

6)

Verifying the generator is synchronized and gradually loaded in accordance with the manufacturer's recommendations to greater than or equal to 4986 kW and operates with a load greater than or equel to 4986 kW for at least 60 minutes, and 7)

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

b.

At least once per 184 days, verify that the diesel generator starts and attains generator voltage and frequency of 4160 1 420 volts and 60 t O.8 Hz within 11 seconds after the start signal. The generator shall be synchronized to the associated emergency bus, loaded to greater than or equal to 4986 kW in accordance with the manufacturer's recommendations, and operate with a load greater than or equal to 4986 kW for at least 60 minutes. The diesel generator shall be started for j

this test using one of the signals in Surveillance Requirement 4.8.1.1.2.a.5.

This test, if it is performed so it coincides with the testing required by Surveillance Requirement 4.8.1.1.2.a.5, may also serve to concurrently meet those requirements as well.

l c.

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 tank; d.

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

)

e.

By sampling new fuel oil in accordance with ASTM-D4057 prior to addition 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:

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; MILLSTONE - UNIT 3 3/4 8-4 Amendment No. J. JJ, 0292

ELECTRICAL POWER SYSTDt3 SURVEILLANCE REQUIRENENTS (Continued) b).

A kinematic viscosity at 40'C of greater than or equal to 1.9 contistokes, but less than or equal to 4.1 contistokes i

(alternatively Saybolt viscosity, 505 at 100*F of greater than or equal to 32.6, but not le::s than or equal to 40.1), if gravity was not determined by comparison with the supplier's certifications c)

A flash point equal to or greater than 125'F and I

d)

A clear and bright appearance with proper color when tested in accordance with ASTN-04176-82.

2)

By verifying within 30 days of obtaining the sample that the I

other properties specified in Table 1 of ASTN-D975-81 are met when tested in accordance with ASTN-Dg75-81 except that the analysis for sulfur may be performed in accordance with ASTN-D1552-79, ASTN-D2622-82 or ASTN-D4294-83.

f.

At least once every 31 days by obtaining a san >1e of fuel oil in accordance with ASTN-D2276-78, and verifying taat total particulate contamination is less than 10 mg/ liter when checked in accordance with ASTN-D2276-78, Nethod As g.

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 services

2)

Verifying the generator capability to reject a load of greater than or equal to 595 kW while maintaining voltage at 4160 i 420 volts and frequency at 60 1 3 Hz:

3)

Verifying the generator capability to reject a load of 4986 kW without tripping. The generator voltage shall not exceed 4784 volts during and following the load rejection:

4)

Simulating a loss-of-offsite power by itself, and:

a)

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

Verifying the diesel starts from standby conditions on the auto-start signal, energizes the emergency busses with permanently connected loads within 11 seconds, energizes the auto-connected shutdown loads through the load i

sequencer and operates for greater than or equal to 5 minutes while its generator is loaded with the shutdown loads. After energization, the steady-state voltage and frequency of the emergency busses shall be maintain 6d at 4160 i 420 volts and 60 1 0.8 Hz during this test.

Except that the Surveillance Requirement inspection due no later than December 25, 1992 may be deferred until the next refueling outage, but no later than September 30, 1993 or whichever is earlier.

MILLSTONE - UNIT 3 3/4 8-5 Amendment No. J. JP, M, 77, un

_ _ _ _ _ _ _ _ _ _ ~ _, _,

__,4

,f M!

i i

' ELECTRICAL _ POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 1 i

5)

Verifying that on an ESF Actuation test signal, without loss-

)

of-offsite power, the diesel generator starts from standby 4

conditions, on the auto-start signal and operates on standby for greater than or equal to 5 minutes. The generator voltage and i

frequency shall be 4160 i 420 volts and 6010.8 Hz within 11 l

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 pwer in conjunction with an ESF Actuation test signal, and:

a)

Verifying deenergization ;F the emergency busses and load shedding from the emergency busses; b)

Verifying the diesel starts from standby conditions, on the auto-start signal, energizes the emergency busses with i

permanently 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 energization, the steady-state voltage and frequency of the emergency busses shall be maintained at l

C 60 1 420 volts and 60 1 0.8 Hz during this' test; and i

c)

Verifying that all automatic diesel generator, trips, l

except engine overspeed, lube oil pressure-low (2 of 3 logic) and generator differential, are automatically bypassed upon loss of voltage on the emergency bus concur-rent with 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 greater than or equal to 5485 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 diesel generator shall be loaded to greater than or equal to 4986 kW. The generator voltage and frequency shall be 4160 1 420 volts and 60 0.8 Hz within 11 seconds after the start signal; the steady-state generator voltage and frequency shall be maintained within these limits during this test.* Within 5 minutes after completing this 24-hour test, perform Specification 4.8.1.1.2.a.5);**

J

Diesel generator loadings may include gradual loading as recommended by the manufacturer.

- If Surveillance Requirement 4.8.1.1.2.a.5) is not satisfactorily completed, it is not necessary to repeat the preceding 24-hour test.

Instead, the diesel generator may be operated at 4986 kW for 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months or until operating temperature has stabilized.

j NILLSTONE - UNIT 3 3/4 8-6 Amendment No. JP, JJ.

un

ELECTRICAL POWER SYSTEMS

^

SURVEILLANCE REQUIREMENTS (Continued) i 8)

Verifying that the auto-connected loads to each diesel genera-tor do not exceed the 2000-hour rating of 5335 kW 1

g)

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 restoration of offsite power.

b)

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

Be restored to its standby status.

10)

Verifyin/thatwiththe'dieselgeneratoroperatinginatest mode, connected to its bus, a simulated Safety Injection signal overrides the test mode by: (1) returning the diesel generator

)

to standby operation, and (2) automatically energizing the i

emergency loads with offsite powers 11)

Verifying that the fuel transfer pump transfers fuel from each fuel storage tank to the day tank of each diesel viaLthe installed cross-connection lines:

12)

Verifying

that the automatic load sequence timer is 0PERABLE with the interval between each load block within i 10% of its design intervals and i

13)

Verifying that the following diesel generator lockout features prevent diesel generator starting:

a)

Engine overspeed, b)

Lube oil pressure low (2 of 3 logic),

l c)

Generator differential, and d)

Emergency stop.

h.

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel 1

generators simultaneously, during shutdown, and verifying that both diesel generators achieve generator voltage and frequency at 4160 420 volts and 60 i0.8 Hz in less than or-equal to 11 seconds: and 1.

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, and i

i

Except that the surveillance requirement due no later than June 13, 1993, may be deferred until the next refueling outage, but no later than September 30, 1993, whichever is earlier.

i MILLSTONE - UNIT 3 3/4 8-7 Amendment No. M, 77, 0292

ML20078Q034

Text

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