ML20077F154

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Proposed Tech Specs Re EDG Fuel Oil Supply
ML20077F154
Person / Time
Site: Millstone Dominion icon.png
Issue date: 11/30/1994
From:
NORTHEAST NUCLEAR ENERGY CO.
To:
Shared Package
ML20077F153 List:
References
NUDOCS 9412130280
Download: ML20077F154 (9)
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Text

5 Docket No. 50-336-B15053 Attachment 1 Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications Emergency Diesel Generator Fuel Oil Supply Marked-up Pages P

i 4

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1 November 1994 1

9412130280 941130 PDR ADOCK 05000336 P PDR

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I 3/4.8 ELECTRICAL POWEP SYSTEMS 3/4.E.1 A.C. SOURCES OPE RAT ING LIMITING CONDITION FOR OPERATION 3 .B .1.1 As a rrinimse, the following A.C. electrical power sources stall te OPER.A5LE:

a. Two physically indeper. der. circuits bet.eer the offsite trar.s.

mission network and the sv.itchyard, and

b. Two separate and independent diesel generators each with a separete fuel oil supply tant contair.ing a minir.se cf 12,03" ,

gallons of fuel.*

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

A C ' 10f. :

a. With either an ef fsite circuit or diesel generator of the at:ve re; sired A.C. electrical pc er sources inoperable, demonstrate the GPERA*: 1LITY of the retaining A.C. Sources by perforrint i Surveillance Recuirements 4.6.1.1.1 and 4.8.1.1.2.a.2 witnir. one b-jat hour and at least once per 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> thereafter; restore at least twc of fsite circuits and two diesel generators to OPERAELE 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 COLD SHUTDOWN witr. r.

the next 36' hours.

b.

With one of fsite circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstra e the OPERAEILITY of the remaining A.C. sources by performin: M Surveillance Requirements 4.8.1.1.1 and 4.8.1.1.2.a .2 witnir.

one 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 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 COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. Restore at least two offsite circuits 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 COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.

c.nw u, %d . dl \ gny 4er 4 The.trhl menii% of 24.p[ach d%s , 4.ts. A o%e.- died epcr*+o' m% e.mk. 4 J ics Tbt ne o Ac. as3u ,,,c 44+

a.+ i m + ene w .

% op u n te 4 i b mo W LN dioct Sacm4w A diesci po+~5 m i=dc4  ;

co4 % m ~4d load.).

MILLSTONg UNIT 2 3/46-1 .

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-' 'u:ett 1,1:75-ELECTRICAL POWER SYSTEMS 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 switchyard, and '
b. One diesel generator with a fuel oil supply tank containing a minimum of 12,000 gallons of fuel. M APPLICABILITY: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until the minimum required A.C. electrical power '

sources are restored to OPERABLE status.

SURVEILLANCE REOUIREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE per Surveillance Requirements 4.8.1.1.1 and 4.8.1.1.2. <

W h - h:r+n ) tyad% of 24 %3 e su, s %+ ou d'a n t Sw

  • m% opem44. O r a4 leas.tk, coo 33d%g ek'ilt % ehe d'a.x) ofem*

%d me 00* " b c4 t ent out war. % y.u . G a. osunt 4hr d.ul Sede s an imatA 4e Zayo kW (.g d'icsA g.e6 tone us o m ua \ cad).

MILLSTONE - UNIT 2 3/4 8-5 C/7L- Amendme.nt No.

~

I - -

S;g.;t 1, 1;75 JL 3/4.8 ELECTRICAL POWER SYSTEMS BASES 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 indepen-dent and redundant A.C. and D.C. power sources and distribution 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 one of each 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 the other onsite A.C. source.

~

. 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 facility status, b STRT h 1

)

MILLSTONE - UNIT 2 B 3/4 8-1 '

ot 7 7

INSERT A Limiting Conditions for Operation 3.8.1.1.b and 3.8.1.2.b require a minimum volume of 12,000 gallons be contained The total in capacity each of the of diesel generator fuel oil supply tanks.

( 24,000 gallons ensures that one diesel generator may operate for at least A days, while the other diesel generator may operate for at These run-times assume that the diesel generators least one hour.

are loaded to 2750 kW (the diesel generator continuous rated load) .

The diesel generator fuel oil supply tanks may be replenished via onsite and offsite sources. Additional and fuel fuel oil oilcan is stored be onsite supplied to in the underground storage tank, of contacting a fuel oil the site within twenty-four hours supplier.

l i

l l

1 i

Docket No. 50-336 B15053 Attachment 2 Millstone Nuclear Power Station, Unit No. 2 Proposed Revision to Technical Specifications Emergency Diesel Generator Fuel Oil Supply Retyped Pages l

November 1994 i I

J

F 3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING LINITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the fol?owing A.C. electrical power sources shall be OPERABLE:

a. Two physically independerot circuits between the offsite trans-mission network and the switchyard, and
b. Two separato and independent diesel generators each with a separate fuel oil supply tank containing a minimum of 12,000 gallons of fuel.*

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

ACTION:

a. With either an offsite circuit or diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining A.C. sources by performing Surveillance Requirements 4.8.1.1.1 and 4.8.1.1.2.a.2 within one 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 at least two offsite circuits 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 /> or be in COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-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 Surveillance Requirement.; 4.8.1.1.1 and 4.8.1.1.2.a.2 within one 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 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 COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />. Restore at least two offsite circuits 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 COLD SHUTDOWN within the next 36 hours4.166667e-4 days <br />0.01 hours <br />5.952381e-5 weeks <br />1.3698e-5 months <br />.
  • The total capacity of 24,000 gallons ensures that one diesel generator may operate for at least four days, while the other diesel generator may operate for at least one hour. These run-times assume that the diesel generators are loaded to 2750 kW (the diesel generator continuous rated load).

NILLSTONE - UNIT 2 3/4 8-1 Amendment No. 7. JJ, 0175 l

1

.g, 3/4.8 ELECTRICAL POWER SYSTEMS BASES I I: The OPERA 81LITV of the A.C. and D.C. power sources and associated distribution syshes 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 indepen-dent and redundant A.C. and D.C. power sources and distribution 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 t 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 one of each of the onsite A.C. knd 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 OPERABILITY of the minimum specifled 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 facility status.

Limiting Conditions for Operation 3.8.1.1.b and 3.8.1.2.b require a minimum volume of 12,000 gallons be contained in each of the diesel generator fuel oil supply tanks. The total capacity of 24,000 gallons ensures that one diesel generator may operate for at least four days, while the other diesel generator may operate for at least one hour. These run-times assume that the diesel generators are loaded to 2750 kW (the diesel generatorcontinuousratedload).

The diesel generator fuel oil supply tanks may ba replenished via onsite and offsite sources. Additional fuel oil is stored onsite in the underground storage tank, and fuel oil can be supplied to the site within twenty-four hours of contacting a fuel oil supplier.

4 MILLSTONE - UNIT 2 8 3/4 8-1 Amendment No.

0177 l

(

s.

l ELECTRICAL POWER SYSTEN3 SNuTo0m LINITING CONDITION FOR OPERATION l

l 3.8.1.2 As a minimum, the following A.C. electrical power sources shall I be OPERABLE: I 1

a. One circuit between tN sffsite transmission network and the switchyard, and
b. One diesel generator with a fuel oil supply tank containing a .

minimum of 12,000 gallons of fuel.* l l

APPLICABILITY: NODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources J OPERABLE, suspend all operations involving CORE ALTERATIONS or positive reactivity changes until the minimum required A.C. electrical power sources are restored to OPERABLE status.

SURVEILLANCE REQUIRENENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE per Surveillance Requirements 4.8.1.1.1 and 4.8.1.1.2.

  • The total capacity of 24,000 gallons ensures that one diesel generator may operate for at least four days, while the other diesel generator may operate for at least one hour. These run-times assume that the diesel generators are loaded to 2750 kW (the diesel generator continuous rated load).

NILLSTONE - UNIT 2 3/4 8-5 Amendment No.

0170

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