ML19256A840

Application for Amendment to License.Requests Tech Specs 3.7,4.6 & 6.9.2 Be Mod to Establish Limiting Conditions for Operation & Surveillance Requirements for a Gas Trubine Generator.W/Tech Spec Page Revisions & Safety Evaluation

ML19256A840
Person / Time
Site:	Indian Point
Issue date:	01/10/1979
From:	William Cahill CONSOLIDATED EDISON CO. OF NEW YORK, INC.
To:
Shared Package
ML101200160	List: ML101200158 ML19256A840
References
NUDOCS 7901160224
Download: ML19256A840 (17)

Text

UNITED S'IATES OF AMERICA NUCLEAR REGUIA'IORY COMISSION In the Matter of )

)

CONSOLIDATED EDISCN COMPANY ) Docket No. 50-247 OF NEW YORK, Itc. )

(Indian Point Station, )

Unit No. 2) )

APPLIC.TTION FOR AMENrNENT

'IO Or_MTING LICENSE _

Pursuant to Section 50.90 of the Regulations of the Nuclear Regulatory Cannission (NRC), Consolidated Edison Ccmpany of New York, Inc. (Con Edison), as holder of Facility Operating License No. DPR-26, hereby applies for amendment of the Technical Specificatione contained in Appendix A of that license.

Specifically, we regoest that Technical Specifications 3.7, 4.6 and 6.9.2 be modified to establish limiting conditions for operation (ICOs) and surveillance requiranents for a gas turbine generator. This change was requested by the Regulatory Staff as a result of its review of the overall Indian Point Unit No. 2 fire protection program.

The specific proposed Technical Specification revisions are set forth in Attachnent A to this Application. A Safety Evaluatior af the proposed clanges is set forth in Attachnent B to this Application. This evaluation 7901160 #

datonstrates that the proposed changes do not represent a significant

'azards consideration and will not cause any change in the types or an increase in the amounts of effluents or any change in the authorized powtr level of the facility.

C)NSOLIDATED EDISON COMPANY OF NEW YORK, INC.

/ .,

,/ , 's ( ,

7 ',7 IN'#'Y By: /

William J.

[//[.-[

'll, Jr.

Vice P~ sident Subscribed and sworn to before me this /#9 day of January, 1979.

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WC tr Notary Public AflGELA ROBERTI fictary Putic, State cf flew Ycrk flo. 418593313 Quahfied in Queens County Commission Expias f brch 30, 1980

ATTACHMENT A Technical Specification Page Revisions Consolidated Edison Company of New York, Inc.

Indian Point Unit No. 2 Docket No. 50-247 January, 1979

TABLE OF CONTENTS (Continued)

Section Title Page 3.10 Control Rod and Power Distribution Limits 3.10-1 Shutdown Reactivity 3.10-1 Power Distribution Limits 3.10-1 Quadrant Power Tilt Limits 3.10-4 Rod Insertion Limits 3.10-5 Rod Misalignment Limitations 3.10-6 Inoperable Rod Position Indicator Channels 3.10-6 Inoperable Rod Limitations 3.10-7 Rod Drop Time 3.10-7 Rod Position Monitor 3.10-7 Quadrant Power Tilt Monitor 3.10-7 Notification 3.10-8 3.11 Movable In-Core Instrumentation 3.11-1 3.12 Shock Suppressors (Snubbers) 3.12-1 3.13 Fire Protection and Detection Systems 3.13-1 4 Surveillance Requit ements 4.1-1 4.1 Operational Safety Review 4.1-1 4.2 Primary System Surveillance 4.2-1 4.3 Reactor Coolant System Integrity Testing 4.3-1 4.4 Containment Tests 4.4-1 Integrated Leakage Rate Test - Pre-Operational 4.4-1 Integrated Leakage Rate Test - Post-Operational 4.4-2 Report of Test Results 4.4-4 Continuous Leak Detection Testing via the Containment Penetration and Weld Channel Pressurization System 4.4-4 Corrective Action 4.4-4 Isolation Valve Tests 4.4-4 Residual IIcat Removal Systems 4.4-5 Annual Inspection 4.4-6 Containment Modification 4.4-6 4.5 Engineered Safety Features 4.5-1 Safety Inj ection System 4.5-1 4.5-2 Containment Spray System liyd roge. Recombiner System 4.5-2 Component asts 4.5-3 4.6 Emergency Prser System Periodic Tests 4.6-1 Diesel Generators 4.6-1 Diccel Fuel Tanks 4.o-2 Station Batteries 4.6-2 Gas Turbine Generators 4.6-2 Gas Turbine Fuel Supply 4.6-3 4.7 Main Steam Stop Valves 4.7 '

4.8 Auxiliary Feedwater System 4.8 .

4.9 Reactivity Anomalies 4.9 1 4.10 DELETED 4.11 DELETED 4.12 Shock Suppressors (Snubbers) 4.12-1 4.13 Steam Generator Tube Inservice Surveillance 4.13-1 Inspection Requirements 4.13-1 Corrective Measures 4.13-4 Reports 4.13-4 4.14 Fire Protection and Detection System 4.14-1 4.15 Radioactive Materials 4.15-1 Amendment No. 11

3.7 AUXILIARY ELECTRICAL SYSTEMS Applicability Applies to the availability of electrical power for the operation of plant auxiliaries.

Objective To define those conditions of electrical power availability necessary (1) to provide for safe reactor operation and (2) tc provide for the continuing availability of engineered safety features.

Specification A. The reactor shall not be rede critical without:

1. Two 138 kv lines to Buchanan fully operational.

2. The 6.9 kv buses 5 and 6 energized from the 138 kv source.

3. One 13.8 kv source fully operational and the 13.8/6.9 kv transformer available to supply 6.9 kv power.

4. The four 480-volt buses 2A, 3A, 5A and 6A energized and the bus tie breakers between buse. 5A and 2A and between buses 3A and 6A open.

5. Three diesel generators operable with on-site supply of 19,000 gallons of fuel available in the individual storage tanks and 22,000 gallons of fuel available on-site other than the normal supply tanks.

6. Both batteries plus two chargers and the d.c. distribution systems operable.

3.7-1

B. During power operation, the following components may be inoperable:

1. Power operation may continue for seven days if one diesel is in-operable provided the 138 kv and the 13.8 kv sources of off-site power are availabic and the remaining diesel generators are tested daily to ensure operability and the engineered safety features associated with these diesel generator buses are operable.

2. Power operation may continue for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, if the 138 kv or the 13.8 kv source of power is lost, provided the three diesel generators are operable. This operation may be extended beyond 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided the failure is reported to the NRC within the subsequent 24-hour per-i iod with an outline of the plans for restoration of of f-site power.

3. One battery may be inoperable for 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> provided the other battery and two battery chargers remain operable with one battery charger carrying the de load of the failed battery's supply system.

l C. Gas Turbine Generators:

1. At least one gas turbine generator (GT-1, GT-2 or GT-3) and asso-ciated switchgear and breakers shall be operable at all times.

2. A minimum of 54,200 gallons of fuel for the operabic gas turbine generator shall be available at all times.

3. If the requirements of specification + 3.7.C.1 and 3.7.C.2 cannot be met, the inoperable equipment shall be restored to operable status within seven (7) days, or the Region I Office of Inspection and Enforcement shall be notified by telephone within the next 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> and a Special Report shall be prepared and submitted in ac-cordance with specification 6.9.2.f within the next ten (10) days.

This Special Report shall address the cause of the inoperability, the action taken, and the plans and schedule for restoring the inoperable equipment to operable status. The 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> telephone notification shall to the maximum extent possible provide the information required for the Special Report.

Amendment No. 3.7-2

D. The requirements of Specification 3.7. A may be modified for an emergency l

" Black Start" of the unit by using the requirements of either Specifica-tion 3.7.D.1 or 3.7.D.2 below:

1. a. All 138 kv lines to Buchanan de-energized.

b. The 13.8 kv line de-energized.

c. The 6.9 kv buses 5 and 6 energized from the on-site gas turbine through the 13.8/6.9 kv transformer.

d. The four 480-volt buses 2A, 3A, 5A and 6A energized from the diesels and the tie breakers between buses SA and 2A and be-tween buses 3A and 6A open.

e. Three diesel generators operable with on-site supply of 19,000 gallons of fuel available in the individual storage tanks and 22,000 gallons of fuel available on-site other than the normal supply tanks and supplying 480-volt buses.

f. Both batteries plus two chargers and the d.c. distribution systems operable.

g. The 480-volt tie breakers 52/2A, 52/3A, 52/5A and 52/6A open.

2. a. Establish 138 kv bus sections at Buchanan with at least 37 MW power (nameplate rating) fro any combination of gas turbines at Buchanan and on-site.

b. Two 138 kv lines to Buchanan energized from the gas turbines with breakers to Millwood and Orange and Rockland open,

c. The 13.8 kv line to Buchanan operable and the 13.8/6.9 kv transformer available to supply 6.9 kv power.

d. The 6.9 kv buses energized from the 138 kv source.

e. The four 480-volt buses 2A, 3A, 5A and 6A energized and the bus tie breakers between buses SA and 2A and between buses 3A and 6A open,

f. Three diesel generators operable with on-site supply of 19,000 gallons of fuel available in the individual storage tanks and 22,000 gallons of fuel available on-site other than the normal supply tanks.

g. Both batteries plus two chargers and the d.c. distribution system operable.

Amendment No. 3.7-3

E. Whenever the reactor is critical, the circuit breaker on the electrical l

feeder to emergency lighting panel 218 inside containment shall be locked open except when containment access is required.

Basis

^The electrical system equipment is arranged so that no single contingency can inactivate enough safeguards equipment to jeopardize the plant safety.

The 480-volt equipment is arranged in four buses. The 6900-volt equip-ment is supplied from six buses.

In addition to the unit transformer, three separate sources supply station service power to the plant.

The plant auxiliary equipment is arranged electrically so that multiple items receive their power from different sources. The charging pumps are supplied from the 480-volt buses Nos. 3A, SA, and 6A. The five containment fans are divided among the 480-volt buses. The two residual heat pumps are on separate 480-volt buses. Valves are supplied from separate motor control centers.

The station auxiliary transformer or a gas turbine is capable of provid-l ing sufficient power for plant startup. The station auxiliary trans-former can supply the required plant auxiliary power during normal operation. '

The bus arrangements specified for operation ensure that power is availa-ble to an adequate number of safeguards auxiliaries. With additional switching, more equipment could be out of service without infringing on sa fe ty.

Two diesel generators have sufficient capacity to start and run at design load the minimum required engineered safeguards equipment. The minimum diesel fuel oil inventory at all times is maintained to assure the opera-tion of two diesels carrying the load of the minimum required engineered safeguards equipment for at least eighty hours.( } Additional fuel oil Amendment No. 3.7-4

suitable for use in the diesel generators will be stored on site. The minimum storage of 22,000 gallons will assure operation of two diesels for ninety hours at the minimum load for engineered safeguards. Com-mercial oil supplies and trucking facilities exist to assure deliveries within ene day's notice. One battery charger shall be in service on each battery so that the batteries will always be at full charge in anticipa-tion of a loss-of-ac power incident. This insures that adequate d.c.

power will be available for starting the emergency diesel generators and other emergency uses.

The plant can be safely shutdown without the use of off-site power since all vital loads (safety systers, instruments, etc.) can be supplied from the emergency diesel generators.

Any two of three diesel generators, the station auxiliary transformer or the separate 13.8 to 6.9 kv transformer are each capable of supplying the minimum safeguards loads and therefore provide separate sources of power immediately available for operation of these loads. Thus, the power sup-ply system meets the single failure criteria required of the safety sys t e ms.

Three (3) gas turbine generators are directly available to the Indian Point site. One is located onsite (GT-1) and two additional units are located at the adjacent Buchanan Substation (GT-2 and GT-3). One gas turbine generator is more than adequate to provide an additional con-tingency of backup electrical power for maintaining the plant in a safe shutdown condition. The specified gas turbine generator minimum fuel inventory of 54,200 gallons assures that one gas turbine generator will be capable of supplying more than the maximum electrical load for the Indian Point Uni.t No. 2 alternate safe shutdown power supply system (i.e., 750 KW) for at least three (3) days. Commercial oil supplies and trucking facilities exist to assure deliveries of additional fuel oil within one day's notice.

Amendnent No. 3.7-5

Conditions of a system-wide blackout could result in a unit trip. Since normal off-site power supplies as required in Specification 3.7.A are not available for startup, it is desirable to be able to blackstart this unit with on-site power supplies as a first step in restoring the system to an operable status and restoring power to customers for essential service.

Specification 3.7.D.1 provides for startup using the on-site gas turbine l

to supply the 6.9 kv loads and the diesels to supply the 480-volt loads.

Tie breakers between the 6.9 kv and 480-volt systems are open so that the diesels would not be jeopardized in the event of any incident and would be able to continue to supply 480-volt safeguards power. The scheme consists of starting two reactor coolant pumps, one condensate pump, 2 circulating watcr pumps and necessary auxiliaries to bring the unit up to approximately 10% power. At this point, loads can be assumed by the nain generator and power supplied to the system in an orderly and routine manner.

This Specification (3.7.D.2) is identical with normal start-up requirements as specified in 3.7.A except that off-site power is supplied exclusively f rom gas turbines with a minimum total power of 37 FM (nameplate rating) which is sufficient to carry out normal plant startup.

As a result of an investigation of the ef fect components that might become submerged following a LOCA may have on ECCS, containnent isolation and other safety-related functions, a fuse and a locked open circuit breaker were provided on the electrical feeder to emergency lighting panel 218 inside containment. With the circuit breaker in the open position, con-t ainment electrical penetration H-70 is de-energized during the accident condition. Personnel access to containment may be required during power ope ra t ion. Since it is highly improbable that a LOCA would occur during this short period of time, the circuit breaker may be closed during that time to provide emergency lighting inside containment for personnel safety.

Re fe rence s

1) FSAR - Section 8.2.1

2) FSAR - Section 8.2.3 Am ndment No. 3.7-6

4.6 EMERGENCY POWER SYSTEM PERIODIC TESTS Applicability Applies to periodic testing and surveillance requirements of the emergency power systems.

Objective To verify that emergency power systems will recpond promptly and properly when required.

Specification The following tests and surveillance shall be performed as stated:

A. Diesel Generators

1. Each month each diesel generator shall be manually st ___4 and synchronized to its bus or buses and shall be allowed to assume the normal bus load.

2. At each refueling cutage each diesel generator shall be manually started, synchronized and loaded up to its nameplate rating.

3. At each refueling outage to assure that each diesel generator will automatically start and assume the required load within 60 seconds af ter the initial start signal the following shall be accomplished - by simulating a loss of all normal AC station service power supplies and simultaneously simulating a Safety Injection signal observations shall verify automatic start of each diesel generator, required bus load shedding and restora-tion to operation of particular vital equipment. To prevent Safety Injection flow to the core certain safeguard valves will be closed and L'de inoperable.

Amendment No. 4.6-1

4. Each diesel generator shall be given a thorough inspection at least annually following the manufacturer's recommendations for this class of stand-by service.

The above tests will be considered satisfactory if the required minimum safeguards equipment operated as designed.

B. Diesel Fuel Taiks A minimum oil storage of 41,000 gallons will be maintained at the station at all times.

C. Station Batteries

1. Every month the voltage of each cell, the specific gravity and temperature of a pilot cell ia cach battery and each battery voltage shall be measured and recorded.

2. Every 3 months each battery shall be subjected to a 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> equalizing charge, and the specific gravity of each cell, the temperature reading of every fif th cell, the height of electro-lyte, and the amount of water added shall be measured and recorded.

3. At each time data is recorded, new data shall be compared with old to detect signs of abuse or deterioration.

4. Once a year the battery shall be subjected to a load test and a visual inspection of the plates.

D. Gas Turbine Generators

1. At monthly intervals, at least one gas turbine generator shall be started and synchronized to the power distribution system for a minimum of thirty (30) minutes with a minimum electrical output of 750 KW.

Amendment No. 4.6-2

E. Cas Turbine Fuel Supply

1. At weekly intervals, the minimum gas turbine feel volume shall be verified to be available and documented in the plant log.

Basis The tests specified in 4.6. A, 4.6.B and 4.6.C are designed to demon-l strate that the deisel generators will provide power for operation of equipment. They also assure that the emergency diesel generator system controls and the control systems for the safeguards equipment will function automatically in the event of a loss of all norcul 480v AC station service power.

The testing frequency specified will be often enough to identify and correct any mechanical or electrical deficiency before it can result in a system failure. The fuel supply is continuously monitored.

An abnormal condition in these systems would be signaled without having to place the diesel generators themselves on test.

Each diesel generator has a continuous rating of 1750 kw with a 2000 hr rating of 2000 kw. Two diesels operating at their continuous rat-ing can power the minimum safeguards loads. A minimum oil storage of 41,000 gallons will provide for operation of the minimum required engineered safeguards on emergency diesel power for a period of 168 hours0.00194 days <br />0.0467 hours <br />2.777778e-4 weeks <br />6.3924e-5 months <br />.

Station batteries will deteriorate with time, but precipitous failure is extremely unlikely. The surveillance specified is that which has been demonatrated over the years to provide an indication of a cell becoming unserviceable long before it fails. The periodic equalizing charge vill ensure that the ampere-hour capability of the batteries is maintained.

Amendment No. 4.6-3

The annual load test for the battery together with the visual inspec-tion of the plates will assure the continued integrity of the batter-les. The batteries are of the type that can be visually inspected, and this method of assuring the continued integrity of the battery is proven standard power plant practice.

The tests specified in 4.6.D and 4.6.E are designed to assure that at least one gas turbine generator will be available to provide power for operation of equipment if required. Since the Indian Point Unit No. 2 alternate safe shutdown power supply system demands a maximum electrical load of approximately 750 KW, the required minimum test load will demonstrate adequate capability. In addition, the mini-mum gas turbine fuel oil storage volume of 54,200 gallons will conserva-tively assure at least three (3) days of operation of a gas turbine generator.

The specified test frequencies for the gas turbine generator (s) and associated fuel supply will be adequate to identify and correct any mechanical or electrical deficiency before it can result in a compo-nent malfunction or failure.

Reference FSAR, Section 8.2.

Amendment No. 4.6-4

SPECIAL REPORTS 6.9.2 Special reports shall be eubmitted to the Director of the Region I Office of Inspection and Enforcement within the time period specified for each report. These reports shall be submitted covering the activities identified below pursuant to the requirements of the applicable reference specification:

a. Each containment integrated leak rate test shall be the subject of a summary technical report including results of the local leak rate test since the last report. The report shall include analyses and interpreta-tions of the results which demonstrate compliance in meeting the leak rate limits specified in the Technical Specifications.

b. A report covering the X-Y xenon stability tests within three months upon completion of the tests.

c. To provida the Commission with added verifications of the safety and reliability of the pre-pressurized Zircaloy-clad nuclear fuel, a limited program of non-destructive fuel inspections will be conducted. The pro-gram shall consist of a visual inspection (e.g. , underwater TV, periscope, or other) of the two lead burnup assemblies in each region during the first, second, and third refueling shutdowns. Any condition observed by this inspection which would lead to unacceptable fuel performance may be the object of an expanded surveillance ef fort. If another domestic plant which contains pre-pressurized fuel of a similar design reaches fuel exposures equal to or greater thar. at Indian Point Unit No. 2, and if a limited inspection program is or has been performed there, then the pro-gram may not nave to be performed at Indian Point Unit No. 2. However, such action requires approval of the Nuclear Regulatory Commission. The results of these inspections will be reported to the Nuclear Regulatory Commission.

d. Inoperable fire protection and detectica equipment (Specification 3.13).

c. Scaled source leakage in excess of limits (Specification 4.15).

f. Inoperable gas turbine generators (Specification 3.7.C).

Amendment No. 6-19

ATTACHMENT B Safety EvaluatioT Consolidated Edison Company of New York, Inc.

Indian Point Unit No. 2 Decket No. 50-247 January, 1979

Safety Evaluation The proposed technical specification changes, contained in Attachment A to this Application, are intended to assure the operability of at least one gas turbine generator to be utilized as a backup contingency electrical power source as part of the overall Indian Point Unit No. 2 fire protection program.

These changes were requested by the Regulatory Staff as a result of its review of the fire protection program. The specific technical specification revisions are based on discussions between Con Edison and NRC personnel regarding the overall upgrading of the Indian Point Unit No. 2 fire protection program.

The proposed changes to Section 3.7 of the Technical Specifications would establish limiting conditions for operation (LCOs) for gas turbine generator availability and minimum gas turbine fuel supply volume. The proposed Section 4.6 revisions would establish the surveillance program for acsuring operability of a gas turbine generator and associated fuel supply. The proposed mod: fica-tion to Section 6.9.2 would require immediate NRC notification and a followup written Special Report any time all the gas turbine generators (GT-1, GT-2 and GT-3) have been inoperable for a period in excess of seven (7) consecutive days.

The proposed changes have been reviewed by both the Station Nuclear Safety Committee and the Con Edison Nuclear Facilities Safet/ Committee. Both Committees concur that the proposed changes do not represent a significant hazards consideration and will not cause any change in the types or an increase in the amounts of effluents or any change in the authorized power level of the facility.