ML20127P316

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Proposed Tech Specs Change NPF-38-114 Re Min Volume of Stored Diesel Fuel Oil
ML20127P316
Person / Time
Site: Waterford Entergy icon.png
Issue date: 01/28/1993
From:
ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20127P288 List:
References
NUDOCS 9302010244
Download: ML20127P316 (8)
v • d • e


Text

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3/4.8 ELECTRICAL POWER SYSTEMS

'3/4.8.1 A.C. SOURCES OPERATING LIMITING CONDITION FOR OPERATION 3.81.1 OPERABLE: As a minimum, the following A.C. electrical power sources shall be _

Two physically independent circuits between the of fsite transmission a.

network and the onsite Class lE distribution system, and b.

Two separate and independent diesel generators, eacn with:

1.

Diesel oil feed tanks containing a minimum volume of 337 gallons of fuel, and 2.

A separate diesel generator fuel oil storage tank containing a minimum volume of 38,760 gallons of fuel, and 3.

A separate fuel transfer pump.

APPLICABILITY:

MODES 1, 2, 3, and 4.

ACTION:

With one offsite circuit of 3.8.1.la inoperable, demonstrate the a.

OPERABILITY of the remaining offsite A.C. circuit by performing Larveillance Requirement 4.8.1.1.la within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

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

Restore the offsite A.C. circuit to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUT 00WN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

b.

With one diesel generator of 3.8.1.lb inoperable, demonstrate the OPERABILITY of the offsite A.C. circuits by performing Surveillance Requirement 4.8.1.1.la (separately for each offsite A.C. circuit) within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter.

If the diesel generator became inoperable due to any cause other than pre-planned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diasel generator (unless it has been suc-cessfully tested in the last 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) by performing Surveillance Requirement 4.8.1.1.2a.4 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

Restore the diesel genera-tor 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 STANOBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within-the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

With one offsite A.C. circuit and one diehel generator of the above c.

required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining offsite A.C. circuit by performing Sur-veillance Requirement 4.8.1.1.la within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at laast once.

per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; and, if the diesel generator became inoperable due to any cause other thar, preplanned preventive maintenance or test-ing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by performing Surveillance Requirement 4.8.1.1.2a.4 within i

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (unless it is already operating).

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 WATERFORD - UNIT 3 3/4 8-1 AMEN 0 MENT NO.23

.__ = : -- - - ~ _ __, _,_ _=

4 ELECTRICAL POWER SYSTEMS A.C. SOURCES SHUT 00WN LIMITING CONDITION FOR OPERATION

3. 8.1. 2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circuit between the offsite transmission network and the onsite-Class 1E distribution system, and b.

One diesel generator with:

1.

A diesel 01: feed tankicontaining a minimum volume of 337 gallons of fuel, 2.

The diesel fuel oil storage tanks containing a minimum volume of 38,760 gallons of fuel, and 3.

A fuel transfer pump.

APPLICABILITY:

H00ES'S and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources _ OPERABLE, immediately suspend all operations involving CORE ALTERATIONS, positive?.eactivity changes, movement of irradiated fuel, or.ane operation with loads over the fuel storage pool._

In addition, when in MODE 5_with the reactor-coolant loops not filled, or in MODE 6 with the water level less than 23 feet above the reactor vessel. flange, immediately initiate corrective action to restore the recuired sources to OPERABLE status as soon as possible.

SURVEILLAl;CE REOUIREMENTS 4.8.1.2 The'above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the Surveillance Requirements of 4.8.1.1.1, 4.8.1.1.2 (except for Surveillance Requirement 4.8.1.1.2a. 5. ) and 4.8.1.1.3.

WATERFORD - UNIT 3 3/4 8-8 M+ss q m-

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~1/4.8 ELECTRICAL POWER SYSTEMS BASES

-3/4.8.1, 3/4.8.2i and 3/4.8.3 OISTRIBUTION SYSTEMS A.C. SOURCES. D.C SOURCES, and ONSITE POWER The OPERABILITY of the A.C. and 0.C. povar cources and associated distribution systems during operation ensures that sufficient ' power: will Ebe available to supply the safety-related equipment required.for (1) tne safe.

shutdown of the facility and (2) the mitigation and control of accident condi-tions with'1 the facility.

The minimum specified independent and redundant--

A.C. and 0.C. power sources and distribution. systems satisfy the requirements of General Design Criterion 17 of Appendix A to 10 CFR Part 50.

The ACTION requirements specified for the levels of degradation of the-power sources provide restriction upon centinued facility _ operation commen-surate with the level of degradation.

The OPERABILITY of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of onsite A.C. and D.C.-power' sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of-offsite power and single ' failure of the other onsite A.C. source.

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

When one diesel generator is inoperable,- there is an additional ACTION requirement to verify that all required systems, subsystems, trains, components, and devices that depend on OPERABLE diesel generator as a source of emergency power-ar.the remaining e -also OPERABLE, and that the steam-driven auxiliary feedwater pump is OPERABLE.

s

.This require-ment is intended to provide assurance that a loss-of-offsite power event will not result in a complete loss of safety function of critical systems.during the period one of the oiesel generaters is inoperable.

The term. verify as -

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

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

The OPERABILITY of the minimum scecified A.C. and 0 C.-

power sources and associatea distribution systems during shutdown and refueling ensures that (1) the facility can be maintained in the shutdown or. refueling condition for i

' extended time periods and (2) sufficient instrumentation and control' capability 4 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 Guides 1.9 " Selection of Diesel Generator Set Capacity for Standby' Power Supplies," March 10,1971, and 1.108 " Periodic Testing of Diesel Generator Units used as Onsite Electric Power Systems at Nuclear Power Plants," Revision 1,_

August 1977, and 1.137, " Fuel Oil Systems for Standby Diesel Generators >,"

Revision 1, October 1979. 'The provision allowing diesel-generator starts utilizing manufacturers' recommended prelube and/or varmup procedures, including -

longer starting and loading periods, is to minimize stress and went on the ciesel engine and is in accordance with Generit Letter'84-15'concerning Diesel Generator Reliability and-Station. Blackout.

Fast-starts from ambient conditions

. (includes lubricating and warmup systems-operating while in standby' lineup)~at least _once every 184 days is in accordance with RRAB-PRA a-alysis of this -

surveillance.

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ILtJ_M AGIRIGALlpVlR SYSTEMS 2/hL1 A.O. SOURCES QUZAnff9 LIMITING CONDITTON FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLZ:

a.

Two physically independent circuits between the offsite transmission network and the Onsite Class 1E distribution system, and b.

Two separate and independent diesel generators, each with:

1.

Diesel oil feed tanks containing a minimum volume of 337 gallons of fuel, and 2.

A separate diesel generator fuel oil storsgo tank containing:

CHANCE A minimum volume of 38,760 gallons ( ! fuel, pg a.

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A separate fuel transfer pump.

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

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a.

With one offsite circuit of 3.8.1.la inoperable, demonstrate the OPERABILITY of the remaining A.C. Circuit by perf'rming Surveillance Requirempnts 4.8.1.1.la. within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter. If either diesel generator has not been successfully tested within the past 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, demonstrate its OPERABILITY by performing Surveillance Requirement 4.8.1.1.2a.4 separately.for each diesel generator (unless it is already operat-ing) within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />. Restore the offsite A.C. circuit to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY within the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />, b.

With one diesel generator oi 3.8.1.lb inoperable, demonstrate the OPERABILITY of the remaining A.C. circuits by performing Surveillance Requirements 4.8.1.1.la (separately for each offsite A.C. circuit) within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least'once par 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter. If the diesel generator became-inoperable due to any cause other than pre-planned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator (unless it has been suc-cessfully tested in the last 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />) by performing Surveillance Requirement 4.8.1.1.2a.4. within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.- Restore the diesel genera-tor-to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> or be in at least HOT STANDBY vithin the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br /> and in COLD SHUTDOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

c.

With'one offsite A.C. circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the remaining offsite A.C. circuit by performing Sur-veillance Requirement'4.8.1.1.la within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> and at least once per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; and, if the diesel generator becare inoperable-l due to any cause other than preplanned preventive maintenance or test-l ing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator by performing Surveillance Requirement 4.8.1.1.2a.4 within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (unless it is already operating). 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 FATERFORD - UNIT 3 3/4 8-1 m MDMENT 23

ElgCTRICAL POWER SYSTEMS A.C. SOURCES filUTDOWN LTMITING COND'

  • SON FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

a.

One circuit between the offsite transmission network and the onsite Class 1E distribution system, and b.

One diesel generator with:

1.

A diesel oil feed tank containing a minimum volume of 337 gallons of fuel, 2.

The diesel fuel oil storage tanks containing:

C11ANCE -

A minimum volume of 38,760 gallons of fuel, Q1(

a.

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3.

A fuel transfer pump.

APPLTCABU JtI: MODES 5 and 6.

ACTION:

With less than the above minimum required A.C. electrical power sources OPERABLE, immediately suspend all operations involving CORE ALTERA'a' IONS, positive reactivity changes, movement of irradiated fuel, or crane operation with loads over the fuel storage pool. In addit hn, when in MODE 5 with the reactor coolant loops not filled, or in MODE 6 wirn the vster level less than 23 feet above the reactor vessel flange, immediately initiate corrective action to restore the required sources to OPERABLE status as soon as possible.

!:URVET1.1ANCE REOUTREMENTS 4.8.1.2 The above required A.C. electrical power sources shall be demonstrated OPERABLE by the performance of each of the Surveillance Requirements of 4.8.l'.l.1, 4.8.1.1.2, (except for Surveillance Requirement 4.8.1.1.2a.5.) and 4.8.1.31.3.

VATERFORD - UNIT 3 3/4 8-8

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3/4.8 ELECTRICAL POWER SYSTEMS BASES i

2/1 L 1. 3/4.8.2.. sad 3/4.8.3 A.C. SOURCES. D.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 condi-tions within the facility. The minimum specified independent and redundant-3 A.C. and D.C. power sources and distribution systems satisfy the requirements j

of General Design Criterion 17 of Appendix A to 10 CFR Part 50.

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The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operation commen-surate with the level of-degradation. The OPERABILITY of the power sources are consistent with the initial condition assumptions of the safety analyses and are based upon maintaining at least one redundant set of onsite-A.C. and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident'with an-assumed loss-of-offsite power and single failure of the other onsite A.C. source. The A.C..and D.C. source allowable out-of-service times are based on Regulatory Cuide 1.93, " Availability of Electrical Fower Sources," December 1974. When one diesel generator is inoperable, there i

l 1s an additional ACTION requirement to verify that all required systems, l

subsystems trains, components, and devices that depend on the remaining OPERABLE diesel generator as a source of emergency power are also OPERABLE, and that the steam-driven auxiliary feedvater N p is OPERABLE. This require-ment is intended to provide assurance that a loss-of-cffsite povar event will not result in a complete loss of safety function of critical systems during the period one of the diesel generators is inoperable.

The term verify as used in this. context means to administratively check by examining logs or other information to determine if certain components are out-of-service for maintenance or other reasons.

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

- i VATERFORD - UNIT 3 B 3/4 8-1 5

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