ML20235G978

From kanterella
Jump to navigation Jump to search
Amend 23 to License NPF-38,revising Surveillance Requirements Involved to Demonstrate Operability of Emergency Diesel Generators to Minimize Engine Stress & Wear in Response to Generic Ltr 84-15
ML20235G978
Person / Time
Site: Waterford Entergy icon.png
Issue date: 09/22/1987
From: Calvo J
Office of Nuclear Reactor Regulation
To:
Shared Package
ML20235G981 List:
References
GL-84-15, NUDOCS 8709300319
Download: ML20235G978 (18)


Text

- - - ___-_ __-_

[g. a n c."'o, UNITED STATES l' '

NUCLEAR REGULATORY COMMISSION N, -'

W ASHINGToN,0 C. 20555 f

o

....+

LOUISIANA POWER AND LIGHT COMPANY DOCKET NO. 50-382 WATERFORD STEAM ELECTRIC STATION, UNIT 3 AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.

23 License No. NPF-38 1.

The Nuclear Regulatory Commission (the Commission) has found that:

A.

The application for amendment by Louisiana Power and Light Company (the licensee) dated March 26, 1987, as supplemented by letters dated May 15, July 24, and August 24, 1987, complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Commission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in conformity with the application, the provisions of the Act, and the rules and regulations of the Commission; C.

There is reasonable assurance (i) that the activities authorized by this amendment can be conducted without endangering the health and safety of the public, and (ii) that such activities will be conducted in compliance with the Commission's regulations; D.

The issuance of this amendment will not be inimical to the common defense and security or to the health and safety of the public; and E.

The issuance of this amendment is in accordance with 10 CFR Part 51 of the Commission's regulations and all applicable requirements have been satisfied.

8709300319 070922 DR ADOCK 05000392 PDR

. 2.-

Accordingly, the license is amended by changes to the-Technical

~5 specifications as indicated in the attachment to this license amendment, and paragraph 2.C(2) of Facility Operating License No.

NPF-38 is hereby amended to read as follows:

~(2) Technical Specifications and Environmental Protection Plan The Technical Specifications contained in Appendix A, as revised through Amendment No. 23, and the Environmental Protection Plan contained in Appendix B, are hereby incorporated in the license.

The licensee shall operate the facility in accordance with the Technical. Specifications and the Environmental Protection Plan.

3.

This license amendment is effective as of its date of issuance.

FOR THE NUCLEAR REGULATORY COMMISSION f

k Jose A. Calvo, Director Project Directorate - IV I

Division of Reactor Projects - III, s

IV, V and Special Projects Office of Nuclear Reactor Regulation

Attachment:

Changes to the Technical Specifications Date of Issuance: September 22, 1987

ATTACHMENT TO LICENSE' AMENDMENT NO. 23 TO FACILITY OPERATING LICENSE NO. NPF-38 DOCKET NO. 50-382 Replace the following pages of the Appendix A Technical Specifications with the attached pages.

The revised pages are identified by Amendment number and contain vertical lines indicating the areas of change.

The corresponding overleaf pages are also provided to maintain document completeness.

Remove Insert XXII XXII 3/4 8-1 3/4 8-1 3/4 8-2 3/4 8-2 3/4 8-3 3/4 8-3 3/4 8-4 3/4 8-4 3/4 8-5 3/4 8-5 3/4 8-6 3/4 8-6 3/4 8-6a 3/4 6-6b 3/4 8-7 3/4 8-7 3/4 8-7a 3/4 8-7b 3/4 8-8 3/4 8-8.(No change) l

l'*.

INDEX LIST OF 1 ABLES (Continued)

TABLE PAGE 4.3-5 METEOROLOGICAL MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS.............................

3/4 3-40 l

3.3-9 REMOTE SHUTOOWN INSTRUMENTATION.......................

3/4 3-42 4.3-6 REMOTE SHUTDOWN INSTRUMENTATION SURVEI LLANCE REQUIREMENT S.............................

3/4 3-43 3.3-10 ACCIDENT MONITORING INSTRUMENTATION...................

3/4 3-45 4.3-7 ACCIDENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS.............................

3/4 3-46 3.3-11 FIRE DETECTION INSTRUMENTS............................

3/4 3-51 3.3-12 RADI0 ACTIVE LIQUID EFFLUENT MONITORING IN ST RUMENT AT ION.......................................

3/4 3-56 l

1 4.3-8 RADIOACTIVE LIQUID EFFLUENT MONITORING INSTRUMENTATION SURVEILLANCE REQUIREMENTS.............................

3/4 3-58 l

3.3-13 RADI0 ACTIVE GASEOUS EFFLUENT MONITORING I N ST RUMENT AT I ON.......................................

3 /4 3-61 4.3-9 RADI0 ACTIVE GASEOUS EFFLUENT MONITORING INSTRUMENTATION SURVEI LLANCE REQUIREMENTS............

3/4 3-65 4.4-1 MINIMUM NUMBER OF STEAM GENERATORS TO BE INSPECTED DURING INSERVICE INSPECTION...........................

3/4 4-15 4.4-2 STEAM GENERATOR TUBE INSPECTION......................

3/4 4-16 3.4-1 REACTOR COOLANT SYSTEM PRESSURE ISOLATION VALVES......

3/4 4-20 3.4-2 RE ACTOR COOLANT SYSTEM CHEMISTRY......................

3/4 4-22 4.4-3 REACTOR COOLANT SYSTEM CHEMISTRY LIMITS SURVEILLANCE REQUIREMENTS.............................

3/4 4-23 4.4-4 PRIMARY COOLANT SPECIFIC ACTIVITY SAMPLE AND AN ALYS I S P R0G RAM.................. '................3/4 4-26 4.4-5 REACTOR VESSEL MATERIAL SURVEILLANCE PROGRAM - WITHDRAWAL SCHE 0VLE........................

3/4 4-32 3.6-1 SECONDARY CONTAINMENT BYPASS LEAKAGE PATH 5............

3/4 6-5 3.6-2 CONTAINMENT ISOLATION VALVE 5..........................

3/4 6-21 WATERFORD - UNIT 3 XXI AMENDMENT NO. 9

l INDEX LIST OF TABLES (Continued)

TABLE PAGE 3.7-1 STEAM LINE SAFETY VALVES PER L00P.....................

3/4 7-2 3.7-2 MAXIMUM ALLOWABLE LINEAR POWER LEVEL - HIGH TRIP SETPOINT WITH INOPERABLE STEAM LINE SAFETY VALVES DURING OPERATION WITH BOTH STEAM GENERATORS..........

3/4 7-3 4.7-1 SECONDARY COOLANT SYSTEM SPECIFIC ACTIVITY SAMPLE AND ANALYSIS PR0 GRAM..........................

3/4 7-8 3.7-3 ULTIMATE HEAT SINK MINIMUM FAN REQUIREMENTS..........

3/4 7-14 3.7-4 FIRE H0SE STATIONS..................................

3/4 7-37 3.7-5 YARD FIRE HYDRANTS AND ASSOCIATED HYDRANT H0SE H0VSES......................................

3/4 7-40 4.8-1 DIESEL GENERATOR TEST SCHEDULE.......................

3/4 8-7 1

4.8-la ADDITIONAL RELIABILITY ACTI0NS.......................

3/4 8-7a l

l 4.8-2 BATTERY SURVEILLANCE REQUIREMENTS...................

3/4 8-11 l

3.8-1 CONTAINMENT PENETRATION CONDUCTOR OVERCURRENT l

P ROT ECTIVE D EVICE S...................................

3/4 8-18 l

1 3.8-2 MOTOR-0PERATED VALVES THERMAL OVERLOAD PROTECTION AND/0R BYPASS DEVICES.....................

3/4 8-53 4.11-1 RADI0 ACTIVE LIQUID WASTE SAMPLING AND ANALYSIS i

PR0 GRAM..............................................

3/4 11-2 1

4.11-2 RADI0 ACTIVE GASE0US WASTE SAMPLING AND ANALYSIS l

PR0 GRAM..............................................

3/4 11-10 l

1 3.12-1 RADIOLOGICAL ENVIRONMENTAL MONITORING PROGRAM........

3/4 12-3

(

3.12-2 REPORTING LEVELS FOR RADI0 ACTIVITY CONCENTRATIONS IN ENVIRONMENTAL 5AMPLES.............................

3/4 12-9 4.12-1 DETECTION CAPABILITIES FOR ENVIRONMENTAL SAMPLE ANALYSIS.............................................

3/4 12-10 WATERFORD - UNIT 3 XXII AMENDMENT NO. 9, 23

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:

i 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 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:

i a.

With one offsite circuit of 3.8.1.la inoperable, demonstrate the OPERABILITY of the remaining offsite A.C. circuit by performing Surveillance 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 i

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 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 I 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.

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 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 />.

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 became inoperable due to any cause other than 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 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 N0. 23

]

-__-_ _ Q

4 ELECTRICAL POWER SYSTEMS ACTION (Continued) 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 />.

Restore the other A.C. power source (offsite A.C. circuit or diesel generator) to OPERABLE status in accordance with the provisions of ACTION statement a or b, as appro-priate, with the time requirement of that ACTION statement based on the time of initial loss of the remaining inoperable A.C. power source.

A successful test of diesel generator OPERABILITY per Sur-veillance Requirement 4.8.1.1.2a.4 performed under this ACTION statement satisfies the diesel generator test requirement of ACTION statement a or b.

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 OPERABLE diesel generator as a source of emergency power are also OPERABLE, and (2) When in MODE 1, 2, or 3, the steam-driven. emergency feed pump is OPERABLE.

If these conditions are not satisfied within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> 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 SHUTOOWN within the following 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

l e.

With two of the above required offsite A.C. circuits inoperable, I

demonstrate the OPERABILITY of two diesel generators by performing i

Surveillance Requirement 4.8.1.1.2a.4 separately for each diesel generator within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> unless the diesel generators are already operating; restore one of the inoperable offsite A.C. circuits to 0PERABLE status within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or be in at least HOT STANDBY within i

i the next 6 hours6.944444e-5 days <br />0.00167 hours <br />9.920635e-6 weeks <br />2.283e-6 months <br />.

Following restoration of one offsite A.C. circuit, follow ACTION statement a with the time requirement of that ACTION statement based on the time of initial loss of the remaining inoper-able offsite A.C. circuit.

A successful test of diesel generator OPERABILITY per Surveillance Requirement 4.8.1.1.2a.4 performed under this ACTION statement satisfies the diesel generator test requirement of ACTION statement a.

f.

With two of the above required diesel generators inoperable, demonstrate the OPERABILITY of two offsite A.C. circuits by performing Surveillance 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; restore one of the inoperable l

diesel generators to OPERABLE status within 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 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 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 />.

Following restoration of one diesel genera-tor, 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.

WATERFORD - UNIT 3 3/4 8-2 AMEN 0 MENT N0. 23

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS 4.8.1.1.1 Each of:the above. required independent circuits between the offsite transmission network and the onsite Class IE distribution system shall be:

j Determined OPERABLE at least once per 7 days by ' verifying correct a.

breaker alignments ~, indicated power availability, and

b..

Demonstrated OPERABLE at'least once per 18 months 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 *:

a.

In accordance with the frequency specified in Table 4.8-1 on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the diesel oil feed tank, 2.

Verifying the fuel' level in the diesel generator fuel oil storage tank, 3.

Verifying the' fuel transfer pump can be started and transfers fuel from the storage system to the diesel oil feed tank, l,

4.

Verifying the diesel starts and accelerates to at least 600 rpm (60 1 1.2 Hz) in less than or equal to 10 seconds.

The genera-tor voltage and frequency shall be 4160 1 420 volts and 60 1 1.2 Hz within 10 seconds after the start signal.

The diesel generator l

shall be started for this test.by using one of the following signals:

a)

Manual.

b)

Simulated loss-of-offsite power by itself.

c)

Simulated loss-of-offsite power in conjunction with an ESF actuation test signal.

d)

An ESF actuation test signal by itself.

l-I

  • All planned starts for the purpose of surveillance in this section may be preceded by a prelube period as recommended by the manufacturer.

WATERFORD - UNIT 3 3/4 8-3 AMENDMENT NO.

23 J

ELECTRICAL POWER SYSTEM SURVEILLANCE REQUIREMENTS (Continued) 5.

Verifying the generator is synchronized (10 seconds), subse-quently loaded to an indicated 4200-4400 Kw* in less than or equal to 176 seconds,** and operates for at least an additional 60 minutes, and 6.

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

b.

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 diesel oil feed tanks.

)

At least once per 92 days and from new fuel oil prior to addition to c.

the storage tanks, by obtaining a sample of fuel oil in accordance with ASTM-D270-1975, and by verifying that the sample meets the following minimum requirements and is tested w.ithin the specified time limits:

1.

As soon as sample is taken (or prior to adding new fuel to the storage tank) verify in accordance with the test specified in ASTM-0975-77 that the sample has:

a)

A water and sediment content of less or equal to 0.05 volume percent.

b)

A kinematic viscosity @ 40 C of greater than or equal to 1.9 centistokes, but less than or equal to 4.1 centistokes.

c)

A specific gravity as specified by the manufacturer @

60/60 F of greater than or equal to 0.80 but less than or equal to 0.99 or an API gravity @ 60 F of greater than or equal to 11 degrees but less than or equal to 47 degrees.

2.

Verify an impurity level of less than 2 mg of insolubles per 100 m1 when tested in accordance with ASTM-D2274-70; analysis shall be completed within 7 days after obtaining the sample but may be performed after the addition of new fuel oil; and

  • This band is meant as guidance to avoid routine overloading of the engine.

Loads in excess of this band for special testing under direct monitoring of the manufacturer or momentary variation due to changing bus loads shall not invalidate the test.

    • The diesel generator fast loading requirement (176 sec) shall be per-formed at least once per 184 days in these surveillance tests.

For all other surveillance tests, load the diesel generator at a rate consistent with the manufacturer's recommendations.

)

WATERFORD - UNIT 3 3/4 8-4 AMENDMENT NO. 4, 23

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 3.

Verify the other properties specified in Table 1 of ASTM-0975-1977 and Regulatory Guide 1.137, Revision 1, October 1979, Position 2.a., when tested in accordance with ASTM-D975-1977; analysis shall be completed within 14 days after obtaining the sample but may be performed after the addition of new fuel oil.

Failure to meet this requirement shall not affect diesel genera-tor OPERABILITY; however, corrective action shall be initiated within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> to return the fuel oil supply to within accept-able limits.

i d.

At least once per 18 months during shutdown by:

1.

Verifying the generator capability to rej'ect a load of greater than or equal to 498 kW (HPSI pump) while maintaining voltage at 4160 + 420 volts and frequency at 60 +4.5, -1.2 Hz.

2.

Verifying the generator capability to reject a load of 4400 kW without tripping.

The generator voltage shall not exceed 4784 volts during and following the load rejection.

3.

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

a)

Verifying deenergization of the emergency busses and load shedding from the emergency busses.

b)

Verifying the diesel starts on the auto-start signal, energizes the emergency busses with permanently con-nected loads within 10 seconds after the auto-start signal, 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 energization, the steady-state voltage and frequency of the emergency busses shall be maintained at 4160 1 420 volts and 60 + 1.2, -0.3 Hz during this test.

4.

Verifying that on an SIAS actuation test signal (without loss-of-offsite power) the diesel generator starts on the auto-start signal and operates on standby for greater than or equal to 5 minutes.

The steady-state generator voltage and frequency shall be 4160 i 420 volts and 60 1 1.2 Hz within 10 seconds after the auto-start signal; the generator voltage and frequency shall be maintained within these limits i

during this test.

WATERFORD - UNIT 3 3/4 8-5 AMENDMENT NO. /, 23

I ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 5.

Simulating a loss-of offsite power in conjunction with an SIAS actuation test signal, and a)

Verifying deenergization of the emergency busses and load shedding from the emergency busses.

b)

Verifying the diesel starts on the auto-start signal, en-ergizes the emergency busses with permanently connected loads within 10 seconds after the auto-start signal, ener-gizes the auto-connected emergency loads through the load sequencer and operates for greater than or equal to 5 min-utes. After energization, the steady-state voltage and frequency of the emergency busses shall be maintained at 4160 420 volts and 60 + 1.2, -0.3 Hz during this test.

c)

Verifying that all automatic diesel generator trips, ex-cept engine overspeed and generator differential, are automatically bypassed upon loss of voltage on the emer-i gency bus concurrent with a safety injection actuation signal.

6.

Verifying the diesel generator operates for at least 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

)

During the first 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> of this test, the diesel generator shall be loaded to an indicated 4700 to 4900 Kw* and during l

)

the remaining 22 hours2.546296e-4 days <br />0.00611 hours <br />3.637566e-5 weeks <br />8.371e-6 months <br /> of this test, the diesel generator shall i

be loaded to an indicated 4200 to 4400 Kw.*

The generator l-voltage and fregency shall be 4160 1 420 volts and 6011.2 Hz within 10 seconds after the start signal; the steady-state generator voltage and frequency shall be 4160 1 420 volts and 60 + 1.2, -0.3 Hz during this test. Within 5 minutes after completing this 24-hour test, perform Surveillance Requirement 4.8.1.1.2.d.3b.**

l 7.

Verifying that the auto-connected loads to each diesel generator do not exceed the 2000-hour rating of 4400 kW.

)

  • This band is meant as guidance to avoid routine overloading of the engine.

Loads in excess of this band for special testing under direct monitoring of I

the manufacturer or momentary variation due to changing bus loads shall not invalidate the test.

)

it is not necessary to repeat the preceding 24-hour test.

Instead, the i

I diesel generator may be operated at an indicated 4200-4400 kw* for 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> or until internal operating temperatures have stabilized.

I i

WATERFORD - UNIT 3 3/4 8-6 AMENDMENT NO. /, 23

)

___ _ _ _ _ ________________ _ _J

ELECTRICAL POWER SYSTEMS l

l SURVEILLANCE REQUIREMENTS (Continued) l 8.

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 g

simulated restoration of offsite power',

I b)

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

Be restored to its standby status.

9.

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 energizes the emergency loads with offsite power.,

10.

Verifying that the fuel transfer pump transfers fuel from each fuel storage tank to the diesel oil feed tank of each diesel via the installed cross connection lines.

11.

Verifying that the automatic load sequence timer is OPERABLE with the time of each load block within +10% of the sequenced

~

load block time.

12.

Verifying that the following diesel generator lockout features prevent diesel generator starting only when required:

a) turning gear engaged b) emergency stop i

c) loss of D.C. control power d) governor fuel oil linkage tripped e.

At the first refueling outage, and thereafter, at intervals not to ex-ceed 24 months, subject the diesels to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recom-mendations for this class of standby service.

l f.

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting the diesel generators simultaneously, during shutdown, and verifying that the diesel generators accelerate to at least 600 rpm (60 1 1.2 Hz) in less than or equal to 10 seconds.

g.

At least once per 10 years by:

1.

Draining each diesel generator fuel oil storage tank, removing the accumulated sediment, and cleaning the tank using a sodium hypochlorite solution or equivalent, and WATERFORD - UNIT 3 3/4 8-6a AMENDMENT NO. 23

ELECTRICAL POWER SYSTEMS SURVEILLANCE REQUIREMENTS (Continued) 2.

Performing a pressure test of those portions of the diesel fuel oil system designed to Section III, subsection ND of the ASME Code at a test pressure equal to 110% of the system design pressure.

h.

By performing a visual inspection of the interior of the diesel generator fuel oil storage tanks each time the tank is drained and, if necessary, clean the tank with a sodium hypochlorite solution, or equivalent.

4.8.1.1.3 Reports - All diesel generator failures, valid or nonvalid, shall be reported in a Special Report to the Commission pursuant to Specification 6.9.2 within 30 days.

Reports of diesel generator failures shall include the information recommended in Regulatory Position C.3.b of Regulatory Guide 1.108, Revision 1, August 1977. If the number of failures in th.e last 20 or 100 sterts (on a per diesel generator basis) exceeds the criteria in Table 4.8-1, take the appropriate action specified in Table 4.8-la and attachments thereto.

1 WATERFORD - UNIT 3 3/4 8-6b AMENDMENT NO. 23 l

l.

TABLE 4.8-1 DIESEL GENERATOR TEST SCHEDULE NUMBER OF FAILURES IN-NUMBER OF FAILURES IN LAST 20 VALID TESTS.*-

LAST 100 VALID TESTS

  • TEST FREQUENCY ***

I 11 14 At.1~ east once per 31 days 12 15 At least once per 7 days **

  • Criteria for determining number of failures and number of valid tests shall be in accordance with Regulatory Position C.2.e of Regulatory Guide.l.108, Revision 1, August _1977, where the last 20 and 100 tests are determined on a per diesel generator basis.

For the purposes of this test schedule, only valid tests conducted after the Operating License issuance date shall be included in the computation of the "last 100 valid tests".

Entry into this test schedule shall be made at the 31 day test frequency.

Increased test frequency for one diesel generator shall not affect the test-frequency for the remaining diesel generator, even under the STAGGERED TEST BASIS criteria.

    • This test frequency shall be maintained until seven consecutive failure-free demands have been performed and the number of failures in the last 20 valid demands has been reduced to one.
      • For purposes of determining the required test frequency, the previous test failure count may be reduced to zero if a complete diesel overhaul to like new conditions is completed, provided that the overhaul, including appropriate post-maintenance operation and testing, is specifically approved by the manufacturer and if acceptable reliability has been demonstrated.

The reliability criterion shall be successful completion of 14 consecutive tests in a single series; 10 of these tests shall be in accordance with Surveillance Requirement 4.8.1.1.2a.4,5 and 4 of these tests shall include the fast loading requirement described in the double-asterisked (**) note to surveillance requirement 4.8.1.1.2a.5.

If this criterion is not satis-fied during the first series of tests, any alternate criterion used to trans-value the failure count to zero may only be implemented with prior approval by the NRC.

WATERFORD - UNIT 3 3/4 8-7 AMENDMENT NO. 23

TABLE 4.8-la

(

ADDITIONAL RELIABILITY ACTIONS No. of failures No. of failures in last 20 in last 100 valid tests valid tests Action 3

6 Within 14 days prepare and maintain a report for NRC audit (I

describing the diesel generator reliability improvement program implemented at the site (see Note 1).

5 11 Declare the diesel generator inoperable.

Perform a requali-fication test program for the 4

h affected diesel generator (see Note 2).

I l

a WATERiORD - UNIT 3 3/4 8-7a AMENDMENT NO. 23 A

TABLE 4.8-la (Continued)

I 1

TABLE NOTATIONS (1) As a minimum the Reliability Improvement Program report for NRC audit shall include:

i a) a summary of all tests (valid and invalid) that occurred within the time period over whicn the last 20/100 valid tests were performed l b) analysis of failvres and determination of root causes of failures c) evaluation of each of the recommend 6tions of NUREG/CR-0660, " Enhance-ment of Onsite Emergency Diesel Generator Reliability in Operating Reactors," with respect to their application to the Plant d) identification of all actions taken or to be taken to 1) correct the root causes of failures defined in b) above and 2) achieve a general improvement of diesel generator reliability e) the schedule for implementation of each action" from d) above f) an assessment of the existing reliability of electric power to ingineered safety feature equipment Once the initial report has been prepared detailing the' diesel generator reliability improvement program, as defined above, only a supplemental report is required within 14 days after each failure during a valid demand for so long as the affected diesel generator unit continues to violate the criteria (3/20 or 6/100) for the reliability improvement program remedial action.

The supplemental report need only update the failure / demand his-tory for the affected diesel generator unit since the last repurt for that diesel generator.

The supplemental report shall also present an analysis of the failure (s) with a root cause determination, if possible, and shall delineate any further procedural, hardware or operational changes to be incorporated into the site diesel generator improvement program and the schedule for implementation of those changes.

t In addition to the above, submit a yearly data report on the diesel generator reliability.

(2) The diesel generator requalification program shall consist of the following:

(a) Perform seven consecutive successful demands without a failure within 30 days of the diesel generator being restored to operable status and

{

fourteen consecutive successful demands without a failure within 75

)

days of the diesel generator of being restored to operab% status.

(b) If a failure occurs during the first seven tests in the requalifica-tion test program, perform seven consecutive successful demands with-(

out an additional failure within 30 days of +.he diesel generator being restored to operable status and fourteen consecutive successful demands without a failure within 75 days of the diesel generator (see 2a) being restored to operable status.

WATERFORD - UNIT 3 3/4 8-7b AMENDMENT NO. 23 j

f n

' TABLE 4.8-la (Continued)

TABLE NOTATIONS

'(c) If a failure occurs during the second'seven tests (tests 8'through

14) of (a) above, perform fourteen. consecutive successful demands without an additional failure within 75 days of the failure which occurred during the requalification testing.

(d) Following the 'second failure during.the requalification test program, be in as 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 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 />.

(e) During requalification testing the diesel generator should not be tested more frequently than at 24-hour intervals.

After a diesel generator has been successfully requalified, subsequent repeated.requalification tests will not be required for that diesel generator under the following conditions:

(f) The number of failures in the last 20 valid de'mands is less than 5.

(g) The number of failures in the last 100 valid demands is less than 11.

(h) In the event that following successful requalification of a diesel generator, the number of failures is still in excess of the remedial action criteria (f and/or g above) the following exception will be allowed until the diesel generator is no longer in violation of the remedial action criteria (f and/or g above).

Requalification testing will not be required provided that after each valid demand the number of failures in the last 20 and/or 100 valid demands has not increased.

Once the diesel generator is.no longer in violation of the remedial action criteria above, the provisions of those criteria alone j

will prevail.

l WATERFORD - UNIT 3 3/4 8-7c AMENDMENT NO.23 l.

9 ELECTRICAL POWER SYSTEMS A.C. SOURCES SHUTDOWN llMITING CONDITION FOR OPERATION 3.8.1.2 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

One circuit between the offsite transmission network and the onsite a.

Class IE distribution system, and l

b.

One diesel generator with:

1.

A diesel oil feed tank containing a minimum volume of 337 gallons I

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:

MODES 5 and 6.

ACTION:

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

In addition, when in MODE 5 with the reactor coolant loops not filled, or in H0DE 6 with the water 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.

SURVEILLANCE REQUIREMENTS 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

..