ML18100B184

Application for Amends to License DPR-70 & DPR-75 Re Emergency Diesel Generator Fuel Oil Storage

ML18100B184
Person / Time
Site:	Salem
Issue date:	06/29/1994
From:	Hagan J Public Service Electric & Gas Co, of New Jersey
To:	NRC/IRM
Shared Package
ML18100B185	List: ML18100B184 ML20073S972
References
LCR-94-15, NLR-N94099, NUDOCS 9407070252
Download: ML18100B184 (16)

Text

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Public Service Electric and Gas Company Joseph J. Hagan Public Service Electric and GaJ00p2n-~

1 gg~* Box 236, Hancocks Bridge, NJ 08038 609-339-1200 Vice President - Nuclear Operations NLR-N94099 LCR 94-15 United States Nuclear Regulatory Commission Document Control Desk Washington, DC 20555 Gentlemen:

REQUEST FOR AMENDMENT EMERGENCY DIESEL GENERATOR FUEL OIL STORAGE SALEM GENERATING STATION UNIT NOS. 1 AND 2 FACILITY OPERATING LICENSES DPR-70 AND DPR-75 DOCKET NOS. 50-272 AND 50-311 In accordance with the requirements of 10CFR50.90, Public Service Electric and Gas Company (PSE&G) hereby transmits a request for amendment of Facility Operating Licenses DPR-70 and DPR-75 for Salem Unit Nos. 1 and 2.

Pursuant to the requirements of 10CFR50.91(b) (1), a copy of this request for amendment has been sent to the State of New Jersey.

This request would increase the Technical Specification minimum volume of oil contained in the Diesel Fuel Oil Storage Tanks (DFOSTs) at the Salem Generating Station.

It would also revise the UFSAR description of the fuel oil storage system capability.

These changes are being submitted to resolve Deviation 50-272/311/93-82-07, received during the NRC Electrical Distribution System Functional Inspection (EDSFI). includes the description and justification for the proposed changes, including PSE&G's Determination of No Significant Hazards Consideration. contains the Technical Specification pages revised with pen and ink changes.

-1

Document Control Desk NLR-N94099 Affidavit Attachments (2)

• C Mr. T. T. Martin, Administrator - Region I U. S. Nuclear Regulatory Commission 475 Allendale Road King of Prussia, PA 19406 Mr. J. C. Stone, Licensing Project Manager - Salem U. S. Nuclear Regulatory Commission One White Flint North-11555 Rockville Pike Rockville, MD 20852 Mr. C. Marschall (S09)

USNRC Senior Resident Inspector Mr. K. Tosch, Manager, IV NJ Department of Environmental Protection Division of Environmental Quality Bureau of Nuclear Engineering CN 415 Trenton, NJ 08625 JUN 2 91994

REF:

NLR-N94099 STATE OF NEW JERSEY SS.

COUNTY OF SALEM J. J. Hagan, being duly sworn according to law deposes and says:

I am Vice President - Nuclear Operations of Public Service Electric and Gas Company, and as such, I find the matters set forth in the above referenced letter, concerning the Salem Generating Station, Unit Nos. 1 and 2, are true to the best of my knowledge, information and belief.

My Commission expires on me 1994 KIMBERLY JO BROWN NOTARY PUBLIC OF NEW JERSEY Mv Gemmiuion Expires April 21, 1998

NLR-N94099 ATTACHMENT 1 I.

DESCRIPTION OF THE PROPOSED CHANGES Teclmical Specification Changes Revise Salem Generating Station (SGS) Unit No. 1 and 2 Technical Specification (TS) 3.8.1.1.b.2, to increase the minimum allowable volume of the Diesel Fuel Oil Storage Tanks (DFOST's), from 20,000 gallons per tank to 23,000 gallons per tank.

This TS is applicable in Modes 1 through 4.

Revise TS 3.8.1.2.b.2 to increase the minimum allowable combined volume of the DFOST'.s, from 20, 000 gallons to 23, 000 gallons.

This TS is applicable in Modes 5 and 6.

UFSAR Changes UFSAR Appendix 3A, page 3A-16, relative to the SGS position on USNRC Regulatory Guide 1.32, "Use of IEEE Standard 308-1971,

'Criteria for Class lE Electric Systems for Nuclear Power Generating Stations'", which currently reads, "The Salem Station design satisfies the requirements of IEEE Standard 308-1971, thereby conforming with the intent of the Regulatory Guide."

would be replaced with the following paragraph:

"The Salem Station design satisfies the requirements of IEEE Standard 308-1971, with the exception that Class 1 diesel fuel oil storage capacity provides less than seven days of diesel operation under worst case loading.

See Section 9.5.4 for a des.cription of how long term Emergency Diesel Generator fuel oil storage :r,:e~irements are met."

Section 9.5.4, first paragraph on top of page 9.5-28, which currently reads, "The 30,000-gallon fuel oil storage tanks per unit are the source of fuel oil supply for the diesel generators.

These tanks can be filled from the.20,000 barrel fuel oil storage tank or via the emergency truck connection provided in the diesel generator area.

Each 30,000-gallon fuel oil storage tank can supply one diesel with enough oil to run it for seven days at full load."

would be replaced with the following paragraph:

"The two 30,000 gallon (nominal) fuel oil storage tanks per unit are the Seismic Class I source of fuel oil for the diesel 1 of 8

generators.

These tanks can be filled without disrupting diesel generator operation from the 20,000 barrel fuel oil storage tank or via the emergency fill connection located along the outside wall of the diesel generator rooms.

The combined volume of both 30,000 gallon fuel oil storage tanks contains sufficient fuel oil at the Technical Specification minimum volume to supply two diesel generators, operating at the most limiting load profile for LOCA with loss of offsite power, for approximately 4~ days.

Operation of the diesel generators beyond this time requires that fuel oil be added to the 30,000 gallon storage tanks from either the on-site 20,000 barrel storage tank or from an off-site source."

II.

REASON FOR THE PROPOSED CHANGES The basis for the original TS minimum volume requirement of 20,000 gallons is not well documented.

PSE&G conducted a review of fuel oil consumption rate, storage tank usable volume, and diesel generator loading in order to reconstitute the basis for the EDG fuel oil storage system.

Based on the results of this effort, which is discussed in Section III, PSE&G is proposing to increase the minimum required volume to increase the time available to restore DFOST inventory in the event of a long term demand for EDG operation.

The UFSAR changes are included to accurately establish the relationship between the proposed Technical Specification volume limit and time of diesel operation based on time dependent fuel oil consumption.

This proposed change addresses the concerns documented in the NRC Electrical Distribution System Functional Inspection Report (Deviation 50-272/93-82-07; 50-311/93-82-07) dated November 30, 1993.

III.

JUSTIFICATION FOR THE PROPOSED CHANGES Description of Fuel Oil Storage System The EDG Fuel Oil Storage and Transfer Systems installed at Salem Generating-Station, Units 1 and 2, each include two 30,000 gallon (nominal) Diesel Fuel Oil Storage Tanks (DFOSTs), two Fuel Oil Transfer Pumps, three 550 gallon (nominal) Fuel Oil Day Tanks, and miscellaneous piping, strainers, and filters.

The function of these systems is to provide an uninterrupted source of fuel oil to the EDGs in the event of a design basis accident (DBA) combined with a loss of offsite A.C. power.

These systems are classified as Nuclear Class 3, Seismic Class I.

.The piping configuration is such that each transfer pump is capable of taking suction from both DFOSTs, and one pump is capable of delivering fuel oil at a rate exceeding the consumption rate of all three diesels at full load.

The transfer pumps are powered by independent Class lE A.C. sources.

Normal make-up to the Diesel Fuel Oil Storage Tanks (DFOSTs) is 2 of 8

supplied by the on-site 20,000 barrel

(~840,000 gallon) Fuel Oil Storage Tank (FOST).

The FOST, piping and valves are classified as non-safety related, Seismic Class III up to the Seismic Class I

tank inlet valve for each DFOST.

Emergency fill connections are provided for each SGS Unit to allow transfer of fuel oil to the DFOSTs from offsite sources.

These connections were originally classified as Seismic Class III, but have since been shown to meet the applicable stress analysis codes (USAS B31.1, 1967 and ANSI B31.1, 1977), including Seismic Class I criteria.

Regulatory Criteria Per UFSAR Appendix 3A, Regulatory Guide 1.32 (Safety Guide 32),

"Use of IEEE Std 308-1971, Criteria for Class 1E Electric Systems for Nuclear Power Generating Stations" is applicable to SGS Units 1 and 2.

Regulatory Guide 1.32 endorses IEEE 308-1971 with two exceptions, neither of which affect the Diesel Fuel Oil Storage System.

IEEE 308-1971, Section 5.2.1(6) states that stored energy at the site shall have the capacity to operate the standby power supply while supplying post-accident power requirements to a unit for the longer of seven days or the time required to replenish the energy from sources away from the generating unit's site following the limiting design basis event.

Regulatory Guide 1.137, while not a Salem commitment for fuel oil system design, provides a standard industry approach for calculating fuel oil consumption and storage requirements.

This regulatory guide endorses ANSI Standard N195-1976, which recommends that on-site fuel oil storage capacity be sufficient to operate the minimum number of diesel generators following the limiting design basis accident for either seven days or the time required to replenish the oil from sources outside the plant site without interrupting the operation of the diesel, whichever is longer.

The evaluation is based on the time dependence of diesel loads during the design basis event or, as a conservative alternative, it is based on continuous diesel operation at rated capacity for seven days.

In the event that the time dependent load method is used, a minimum margin of 10% is to be added to the fuel oil requirement.

Note that for SGS, the minimum number -

of diesel-s 4 f-or a design basis accident is two.

SGS FUEL OIL STORAGE EVALUATION PSE&G initiated an effort to review the as-built capability of the diesel fuel oil storage systems.

This effort determined a bounding value of fuel oil consumption as a function of EDG load, the usable DFOST volume, and the duration of EDG operation supported by the DFOST at various tank levels.

The design basis event for DFOST capability is a Loss of Coolant Accident (LOCA) with Loss of Offsite Power (LOOP) and two diesels operating.

3 of 8

Fuel Oil Consumption Rate At PSE&G's request, the diesel generator manufacturer (Alco) performed an analysis to establish the specific fuel consumption rates for each EDG under Salem-specific design basis loading conditions.

The loading conditions were based on the profiles generated by the Salem EDG load calculation which was reviewed by the NRC during the Electrical Distribution System Functional Inspection (EDSFI, ref: Inspection Report 50-272/93-82; 50-311/93-82, dated November 30, 1993).

The worst case specific fuel consumption rate from the original factory tests of the Salem diesel generators were used as a starting point in Alco's analysis.

A review of the following parameters which could potentially affect fuel consumption was performed:

major component changes, lube oil and jacket water temperature, generator efficiency, barometric pressure, humidity, intake air temperature, exhaust backpressure, maintenance and operating history, transient versus steady-state loading, and fuel density.

Fuel density, which is commonly correlated with heating value by industry (e.g., Diesel Engine Manufacturers Association), is used to ensure that an appropriate heating value is reflected in the consumption calculation.

This review shows that the only parameters with a significant potential impact on the Salem diesels' consumption rate relative to the factory test*

data are ambient intake air temperature and the uncertainties associated with transient (approximately the first minute) loading.

A 3% margin was added to the worst case specific fuel consumption rate to account for the combined effects of the above parameters.

This margin is consistent with Alco's recommendation based on extensive field experience with diesel engines similar to those used at Salem (Model 251 engine), and it envelopes operation at outside ambient air temperatures up to 120 degrees Fahrenheit.

Usable Volume An evaluation was performed to determine the usable volume provided by the Diesel Fuel Oil Storage Tanks at selected tank levels.

The total usable volume per tank is approximately 29,200 gallons.

Fuel oil level measurement uncertainty is considered in determining the usable volume as a function of indicated level.

In the vicinity of the tank level corresponding to the proposed TS volume, level measurement uncertainty accounts for approximately 1300 gallons of fuel oil.

Fuel oil contained in the day tanks was not included in the calculation of available fuel oil volume.

This is a conservative assumption because the day tanks are normally maintained with greater than a one hour supply of fuel oil.

With two diesels operating, the inoperable diesel's day tank is assumed to fill from an initial volume of 130 gallons to the day tank capacity of 4 of 8

550 gallons.

This results in an additional 420 gallons which is subtracted from the DFOST usable volume.

This assumption is conservative because the day tank level is normally maintained higher than the Technical Specification limit.

The potential impact of vortexing was considered.

The effects of vortexing are minimized by the system's physical configuration, including the use of low speed, self-priming positive displacement fuel oil transfer pumps, and pump suction centerline located well below the bottom of the DFOSTs.

The conservatism associated with discounting the day tank volumes would more than offset any potential effects of vortexing.

Although SGS is not committed to Regulatory Guide 1.137 relative to fuel oil storage capacity, the calculation includes a 10%

margin on the plant specific load profile fuel consumption requirements.

PSE&G considers this margin to be very conservative because of the low degree of uncertainty associated with the revised fuel oil consumption rate and diesel load calculations.

Basis For Proposed TS Value Based on the revised specific fuel consumption rate and load profiles for each diesel generator, the proposed TS 3.8.1.1.b.2 volume of 23,000 gallons per tank can support approximately 4~

days of operation for the limiting load condition associated with LOCA plus LOOP with two operable EDG's.

The design basis limiting cases are LOOP/LOCA with the A and B diesel generators operating at Unit 1 and LOOP/LOCA with the A and C diesel generators operating in Unit 2.

4.5 days of operation in this scenario would require 21,985 gallons at Unit 1 and 22,553 gallons at Unit 2.

Two diesels are the minimum required by the safety analyses, and are therefore used as the tank sizing basis consistent with ANSI N195 and Regulatory Guide 1.137.

23,000 gallons of fuel oil per DFOST is capable of supporting three diesels post-LOCA for 2.9 days.

23,000 gallons is proposed in order to increase the EDG operating time supported by the TS minimum vplume, while providing for operating margin to allow for periodic diesel testing and to preclude overfilling the DFOSTs to satisfy the TS.

The potential for overfilling is exacerbated by level measurement uncertainty (approximately 8 inches when protecting against an overfill condition) combined with the increasing rate of level change per unit of volume as the top of the tank is reached.

During operation in Mode 5, Cold Shutdown, and Mode 6, Refueling, minimum fuel oil volume requirements are lower than for operation in Modes 1 through 4.

This is based on subcritical reactor core conditions and lower temperature operation, which reduce the potential demands on the Engineered Safety Features (ESF) systems supplied by the EDG's.

The present TS 3.8.1.2.b.2 DFOST volume requirement for operation in Modes 5 and 6 is a combined volume of 20,000 gallons.

The proposed change to TS 3.8.1.2.b.2 would 5 of 8

increase the Modes 5 and 6 minimum volume to 23,000 gallons, to be consistent with the proposed change to TS 3.8.1.1.b.2.

METHODS FOR REFILLING THE DFOSTs Operating procedures identify three methods for refueling the DFOSTs: transfer from the 20,000 barrel Fuel Oil Storage Tank (FOST) using a Fuel Oil Forwarding Pump, transfer from the FOST using gravity feed, and transfer using the Emergency Truck Fill Connection.

The preferred method is to transfer fuel oil from the FOST via installed transfer piping.

This method is viable during loss of offsite power since the DFOSTs are located below the FOST allowing gravity feed.

In the event the FOST transfer capability is not available, the emergency fill connections may allow fuel to be pumped or drained directly into the DFOSTs via an external connection.

Fuel oil may be deli~2red from offsite sources via tanker truck or barge.

Fuel oil in the FOST and DFOSTs is periodically sampled and tested.

No additional testing would be necessary prior to transfer from the FOST.

For fuel delivered from offsite sources, testing is required prior to use, and must be considered when determining proper response times.

Testing is performed by PSE&G's Maplewood Labs.

Samples must be pulled from the tankers, but this could be readily performed onsite within a short period of time during an emergency, or at the time the fuel is loaded into the tankers at the off-site source to allow performance of the tests in parallel with the fuel delivery.

These alternate sources of fuel and the capability to refuel the EDG Fuel Oil Storage Tanks during diesel generator operation via one of the alternate methods ensures that the diesel generators can provide a reliable long term source of on-site power.

Operations and Emergency Preparedness Procedures Emergency and Abnormal Operating Procedures, and Emergency Preparedn~~s_ procedures have been reviewed to identify potential enhancements.

The abnormal operating procedure for severe weather requires initiation of actions to fill various outdoor tanks, including the FOST, upon indications of excessively high tide levels, to reduce tank buoyancy and maximize inventory.

Site-specific meteorological data shows that the probability of loss of offsite power due to weather conditions is relatively low, as used in the basis for establishing a four-hour station blackout coping duration for SGS (Ref: NRC Supplemental SER dated May 13, 1994)

As discussed in response to Hope Creek FSAR Question 430.88, whi'cn> is applicable to SGS, severe weather conditions could interfere with the fuel oil deliveries for 24-36 hours, but site conditions preventing deliveries for as long as 5 days is not probable.

The question response also discusses the availability 6 of 8

of multiple fuel oil suppliers and emergency response resources to ensure delivery.

To provide additional assurance of adequate onsite inventory, the severe weather abnormal operating procedure is being revised to require increased inventory be maintained in the DFOST's in the event of indications of impending severe weather conditions.

The Emergency and Abnormal Operating Procedures for loss of power transients are being revised to include a step to initiate DFOST level verification and FOST transfer as required by the system operating procedures.

This revision provides more definitive guidance for a practice that has been historically emphasized by operator training and station operating philosophy (i.e., use diesel operating logs and maintain DFOST level regardless of the reason for diesel operation).

If the 20,000 barrel Fuel Oil Storage Tank and/or transfer piping cannot be used to supply fuel to tG2 EDG Fuel Oil Storage Tanks, the Shift Supervisor would be notified so that arrangements for obtaining fuel from one of PSE&G's fuel oil vendors can be initiated by the emergency response team.

The Emergency Diesel Generator System Operating Procedures require operators to check the local level indication of the DFOSTs every 30 minutes for the first two hours of EDG operation, and hourly for operation beyond the first two hours.

If plant conditions preclude checks from occurring at the prescribed frequency (e.g., radiological dose concerns or higher shift crew priorities), the Technical Support Center (TSC) and/or Emergency Operations Facility (EOF) may be relied upon to coordinate inventory and transfer capabilities.

Emergency plan implementing procedures are being revised to provide guidance to emergency response team personnel.

In the event of long term diesel operation, the response team will determine whether the operating shift crew is verifying DFOST level and transferring from the FOST as needed.

If it is not practical or possible for operations to implement the system operating procedures (e.g., hourly log readings), the response team will_ pr_ovide the necessary support to ensure a long term supply of fuel is provided.

Response team support may include level verification and assessment of FOST status, procurement, sampling and transfer of fuel on an emergency basis, and field walkdowns and dose assessment to determine the accessibility of the DFOST rooms and access routes.

IV.

DETERMINATION OF NO SIGNIFICANT HAZARDS CONSIDERATION The proposed changes for Salem Unit Nos. 1 and 2:

(1) do not involve a significant increase in the probability or consequences of an accident previously evaluated.

Emergency Diesel Generator (EDG) fuel oil is used to support mitigation of design basis events involving loss of the preferred (offsite) source of A.C. power.

Fuel oil storage capacity has no 7 of 8

effect on the probability of any accident previously evaluated.

Onsite fuel oil storage capability is designed to provide assurance of long term diesel operation t9 mitigate the consequences of a design basis accident.

The proposed change would increase the minimum required volume in the Seismic Class I Diesel Fuel Oil Storage Tanks (DFOSTs), and would revise the Updated Final Safety Analysis Report (UFSAR), as part of an effort to reconstitute the basis for SGS fuel oil storage capacity.

The DFOST inventory at the proposed minimum Technical Specification (TS) limit, combined with the emergency fill connection and Seismic Class III Fuel Oil Storage Tank and transfer capability, would continue to provide a long term onsite fuel oil supply to the EDGs.

Operations and Emergency Preparedness procedures would facilitate the transfer of fuel oil, and procurement from offsite sources as a contingency measure.

Therefore, the ability to provide a long term supply of fuel oil to the EDG's is maintained, and the proposed change would not result in any significant increase in consequences of an accident previously evaluated.

(2) do not create the possibility of a new or different kind of accident from any accident previously evaluated.

The proposed change would increase the minimum DFOST level required by TS, and redefines the fuel oil storage and transfer systems' capability based on plant specific fuel oil consumption rate and EDG load profiles.

These changes would not result in operation in any configuration prohibited by the present TS, and do not introduce the possibility of any new type of accident.

(3) do not involve a significant reduction in a margin of safety.

The EDG fuel oil storage and transfer capability would continue to support reliable, long term EDG operation, thereby maintaining an acceptable margin of safety relative to the ability of onsite A.C. power to support operation of equipment important to safety.

The propo~~d_ changes do not involve a significant reduction in margin of safety.

Therefore, PSE&G has concluded that the changes proposed herein do not involve a Significant Hazards Consideration.

8 of 8

NLR-N94099 ATTACHMENT 2

3/4.8 ELECTRICAL POWER SYSTEMS 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 A.C. circuits between the offsite transmission network and the onsite Class lE distribution system (vital bus system), and

b.

Three separate and independent diesel generators with:

1.

Separate day tanks containing a minimum volume of 130 gallons of fuel, and

2.

A common fuel storage system consisting tanks, each containing a minimum volume fuel, and two fuel transfer pumps.

APPLICABILITY:

MODES 1, 2, 3 and 4.

of two storage

~allona of ACTION:

a.

With an independent A.C. circuit of the above required A.C.

electrical power sources inoperable, demonstrate the OPERABILITY of the remaining independent A.C. circuit by performing surveillance Requirement 4.8.1.1.1.a 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; and demonstrate OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; restore the inoperable independent 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 of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the independent A.C. circuits by performing Surveillance Requirement 4.8.1.1.1.a 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 is inoperable for preventive maintenance, the two remaining OPERABLE diesel generators need not be tested.

If the diesel generator is inoperable for any reason other than preventive maintenance, demonstrate the OPERABILITY of the remaining diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

In any case, restore the inoperable diesel generator 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 />.

SALEM - UNIT 1 9407070289 940629 PDR ADOCK 05000272 P

PDR 3/4 8-1 Amendment No. 148

-1 I.

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 onsite Class lE distribution system (vital bus system), and

b.

Two separate and independent diesel generators with:

1.

Separate day tanks containing a minimum volume of 130 gallons of fuel, and A common fuel storage system containing a minimum volume of 2e,eee gallons of fuel, and A fuel transfer pump.

APPLICABILITI:

MODES s 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 REQUIREMENTS

=====================**============================c==========================*

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, 4.8.1.1.3 (except for requirement 4.8.1.l...3...a.2) and 4.8.1.1.4.

SALEM ** UNIT 1 3/4 8-Sc Amendment No. 148 I

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C. SOURCES OPERATING LIMITING COHDITION POR OPERATION

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • =zz*****=************=as*==~*n========

3.8.1.1 A* a minimum, the follnwing A.C. electrical power sources shall be OPERABLE:

a.

Two phy*ically independent A.C. circuit* between the offsite tran*mi**ion network and the on*ite Claa* lE diatribution system (vital bu* *yatem), and

b.

Three **parat* and independent diesel generators with:

1.

2.

Separate day tank* containing a minimum volume of 130 gallon* of fuel, and A coamon fuel storage aystem consisting of two storage tank*, each containing a minimum volume of 20,eeo gallons of fuel, and two fuel transfer pumpa.

~

APPLICABILITY:

MODES 1, 2, 3 and 4.

'~

ACTION:

a.

With an independent A.C. circuit of the above required A.C.

electrical power sources inoperable, demon*trate the OPERABILITY of the remaining independent A.C. circuit by performing Surveillance Requirement 4.8.1.1.1.a within one hour and at least once per 8 hour* thereafter; and demonstrate OPERABILITY of three diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />; restore tho inoperable independent A.C. circuit to OPERABLE *tatus 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 di***l generator of the above required A.C. electrical power *ource* inoperable, demonstrate the OPERABILITY of the

~ independent A.c.

cir~uit* by performing Surveillance Requirement 4.8.1.1.1.a within l hour and at leaat 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 di***l generator is inoperable for preventive maintenance, the two remaining OPERABLE diesel generator* need not be tested.

If the diesel generator is inoperable for any reason other than preventive maintenance, demonatrate th* OPERABILITY of the remaining diesel generators by performing Surveillance Requirement 4.8.1.1.2.a.2 within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

In any case, reatore the inoperable diesel generator to OPERABLE statue 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 />.

SALEM -

UNIT 2 3/4 8-1 Amendment No.

~26

~LECTRICAL POWER SYSTEMS SHUTJ)OWN LIMITING CONDITION FOR OPERATION 3.8.l.2 A* a minimum, the following A.C. electrical power eourc** *hall be OPERABLE:

a.

One circuit between the off*it* tran*mi**ion network and the on*it* Cl*** lB di*tribution *y*tem (vital bu* *y*tam), and

b.

Two **parate and independent di***l generator* with:

1.

Separate day tank* containing a minimum volume of 130 gallon* of fuel, and

2.

A comon fuel *torage *ystem containing a minimum volume of L------=t~2~e~,~e~e~e~* gallon* of fuel, and

3.

A fuel tran*fer pump.

APPLICABILITX:

MODES 5 and 6.

ACTION:

With le** than the above minimum required A.C. electrical power *ources OPERABLE, auapend all operations involving CORE ALTERATIONS or positive reactivity change* until the minimum required A.C. electrical power sources are re*tored to OPERABLE *tatu*.

SURVEILLANCE REQUIREMENTS

• • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • =****m======

4.8.l.2 The above required A.C. electrical power sources shall be demon*trated OPERABLE by the performance of each of the Surveillance Requirement* of 4.8.1.1.1, 4.8.1.1.2, 4.8.1.1.3 (except for requirement 4.8.1.1-.3.a.2) and 4.8.1.1.4.

SALEM -

UNIT 2 3/4 8-7a Amendment No. 126