ML20108C257

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Proposed Tech Specs ANO-1 TS 3.7.2 & ANO-2 TS 3.4.4 & 3.8.1.1,extending Allowed Outage Time from 7 Days to Include Once Per Cycle Extension of Addl 7 Days Per Machine
ML20108C257
Person / Time
Site: Arkansas Nuclear  Entergy icon.png
Issue date: 05/02/1996
From:
ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20108C222 List:
References
NUDOCS 9605060248
Download: ML20108C257 (29)
v • d • e


Text

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PROPOSED TECHNICAL SPECIFICATION CHANGES i

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i BASES (continusd) initiated or that higher modes of operation are not entered when corrective i

action is being taken to obtain compliance with a Specification by restoring i

equipment to OPERABLE status or parameters to specified limits.

Compliance with Action requirements that permit continued operation of the facility for an unlimited period of time provides an acceptable level of safety for continued operation without regard to the status of the plant before or after a mode change. Therefore, in this case, if the requirements for continued

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operation have been met in accordance with the requirements of the specification, then entry into that mode of operation is perudssible. The provisions of this specification should not, however, be interpreted as l

endorsing the failure to exercise good practice in restoring systemslor components to OPERABLE status before plant startup.

When a shutdown is required to comply with Action requirements, the provisions of Specification 3.0.4 do not apply because they would delay placing the facility in a lower mode of operation.

For the purpose of compliance with this specification the term ' shutdown' is defined as a required reduction in the REACTOR OPERATING CONDITION.

3.0.5 Delineates what additional conditions must be satisfied to permit j

operation to continue when a normal or emergency power source is not OPERABLE.

I It specifically prohibits operation when one division is inoperable because its normal or energency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the Limiting Condition for i

Operation statements associated with individual systems, subsystems, trains, i

l components or devices to be consistent with tne Limiting Condition for It allows l

Opera cion statements of the associated electrical power source..

l operation to be governed by the time limits of the Limiting Condition for Operation for the normal or emergency power source, not the individual

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Limiting Condition for Operation statements for each system, subsystem, train, I

component or device that is determined to be inoperable solely because of the inoperability of its normal or emergency power source.

For example, Specification 3.7.2.C provides an out-of-service time l

when one emergency diesel generator is not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all l

systems, subsystems, trains, components and devices supplied by the inoperable emergency power source would also be inoperable. This would dictate invoking the applicable Action statements for each of the applicable Limiting Conditions for Operation. However, the provisions of Specification 3.0.5 permit the time limits for continued operation to l

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1 Amendment No M, W, m,

15b-3

3.7.2 A.

The epacific tions in 3.7.1 may be modified to allow one of tha following conditions to sxist after the reactor has been heated above 200F.

Except as indicated in the following conditions, if any of these conditions are not met, a hot shutdown shall be initiated within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

If the condition is not cleared within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the reactor shall be brought to cold shutdown within an additional 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

B.

In the event that one of the offsite power sources specified in 3.7.1.A (1 or 2) is inoperable, reactor operation may continue for up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />,after which Specification 3.7.2.A shall apply.

C.

Either one of the two diesel generators nay be inoperable for l

up to 7 days provided that the operability of the renmining t

diesel generator is demonstrated

  • within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, there are no l

inoperable ESF components associated with the operable diesel generator, and provided that the two sources of offsite power specified in 3.7.1.A(1) or 3.7.1.A(2) are available.

If the diesel generator is not returned to service at the end of the 7 day

  • period, Specification 3.7.2.A shall apply.

D.

Any 4160V, 480V, or 120V switchgear, load center, motor control center, or distribution panel in one of the two ESF distribution systems may be inoperable for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, l

provided that the diesel generator associated with the operable ESF distribution system and all of the components of the operable l

distribution system are operable.

If the ESF distribution system i

is not returned to service at the end of the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period, Specification 3.7.2.A shall apply.

E.

With no operable battery charger associated with one station j

battery, operation is allowed to continue for a period of 8 l

hours provided at least one battery charger is operable on the

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opposite train, after which Specification 3.7.2.A shall apply.

F.

One of the two station batteries and the associated distribution system may be inoperable for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> provided that there are no inoperable safety related components associated with the remaining station battery which are j

redundant to the inoperable station battery.

If the battery is not returned to service at the end of the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period, i

i specification 3.7.2.A shall apply.

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Two control power sources from the plant to the switchyard and the attendant distribution system may be inoperable for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, after which Specification 3.7.2.A shall apply.

l H.

If the requirements of Specification 3.7.1.G cannot be met, either:

j (1) place all Startup Transformer No. 2 feeder breakers in

" pull-to-lock" within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, restore the inoperable interlocks to operable status within 30 days, or submit within 30 days a Special Report pursuant to Specification 6.12.5 outlining the cause of the failure, proposed l

corrective action and schedule for implementations or (2) apply the action requirements of Table 3.5.1-1, Note 14.

8 The allowable outage time for an inoperable diesel generator may be extended to 14 days for each diesel generator on a once per refueling cycle frequency.

  • The operability of the remaining diesel generator can be demonstrated by either determining the diesel generator is not inoperable due to a common cause failure or by starting the diesel generator from the control room and verifying rated speed and voltage are achieved within 15 seconds.

Amendment No. 40,M4,W1,M4, 57 l

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BASES (Continued) operation is not initiated or that higher modes of operation are not entered when corrective ACTION is being taken to obtain compliance with a specification by restoring equipment to OPERABLE status or parameter to specified limits.

Compliance with ACTION requirements that permit continued operation of the facility for an unlindted period of time provides an acceptable level of safety for continued operation without regard to the status of the plant before or after a mode change.

Therefore, in this case, if the requirements for continued operation have been met in accordance with the requirements of the specification, then entry into that mode of operation is permissible. The provision of this specification should not, however, be interpreted as endorsing the failure to exercise good practice in restoring systems or components to OPERABLE status before plant startup.

When a shutdown is required to comply with ACTION Tequirements, the provisions of Specification 3.0.4 do not apply becruse they would delay placing the facility in a lower mode of operation.

For the purpose of compliance with this specification the term shutdown is defined as a required reduction in mode.

3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, ccasistent with the ACTION statements for power sources, when a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the ACTION statements associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated electrical power source.

It allows operation to be governed by the time limits of the ACTION statement associated with the Limiting condition for Operation for the normal or emergency power source, not the individual ACTION statements for each system, subsystem, train, component or device that is determined to be inoperable solely because of the inoperability of its normal or emergency power source.

For example, Specification 3.8.1.1 requires in part that two emergency diesel generators be OPERABLE. The ACTION statement provides an l

out-of-service time when one emergency diesel generator is not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystenm, trains, components, and devices supplied by the inoperable emergency power source would also be inoperable. This would dictate invoking the applicable ACTION statements for each of the applicable Limiting Conditions for Operation.

However, the provisionr of Specification 3.0.5 permit the time limits for continued operation uo be consistent with the ACTION statement for the inoperable l

l ARKANSAS - UNIT 2 B 3/4 0-1c Amendment No. 144,

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REACTOR COOLANT SYSTEM PRESSURIZER LIMITING CONDITION FOR OPERATION 3.4.4 The pressurizer shall be OPERABLE with a water volume of s 910 cubic feet (equivalent to s 82% of wide range indicated level) and both pressurizer proportional heater groups shall be OPERABLE.

APPLICABILITY: MODES 1, 2 and 3.

ACTION:

(a)

With the pressurizer inoperable due to water volume 2 910 cubic feet, be in at least HOT SHUTDOWN with the reactor trip breakere open within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

(b) with the pressurizer inoperable due to an inoperable proportional heater group, either restore the inoperable proportional heater group 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 SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

SURVEILLANCE REQUIREMENTS 4.4.4.1 The pressurizer water volume shall be determined to be within its limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

4.4.4.2 The pressurizer proportional heater groups shall be determined to be OPERABLE at least once per 18 months by verifying that the summed power l

i consumption of the two proportional heater groups is 2 150 KW.

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l ARKANSAS - UNIT 2 3/4 4-5 Amendment No. 30, l

3/4.8 ELECTRICAL' POWER SYSTEMS i

3/4.8.1 A.C.

SOURCES

- I 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 circuits between the offsite transmission network and the onsite Class lE distribution system l

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Two separate and independent diesel generators each with:

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A day fuel tank containing a ndnimum volume of 280 gallons l

of fuel (equivalent to 50% of indicated tank volume),

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A separate fuel storaga system containing a ndnimum volume of 22,500 gallons of fuel (equivalent to 100% of indicated tank level), and 3.

A separate fuel transfer pump.

APPLICABILITY: MODES 1, 2, 3 and 4.

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ACTION:

a.

With one offsite A.C. circuit of the above required A.C. electrical power sources inoperable, demonstrate the OPERABILITY of the l

remaining offsite A.C.

circuit 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.

Restore the offsite A.C.

circuit to OPERABLE l

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 i

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 i

l power source inoperable, demonstrate the OPERABILITY of both the l

offsite A.C.

circuits by performing Surveillance Requirement l

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.

l If the diesel generator became inoperable due to any cause other l

than preplanned preventive maintenance or testing, demonstrate the OPERABILITY of the remaining OPERABLE diesel generator (unless it has been successfully tested in the last 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or is already operating) by performing Surveillance Requirement 4.8.1.1.2.a.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 generator to OPERABLE status within 7 days

  • 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 /> l

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 />.

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i 8 The allowable outage time for an inoperable diesel generator may be extended to 14 days for each diesel generator on a once per refueling cycle frequency.

ARKANSAS - UNIT 2 3/4 8-1 Amendment No. 141, i-

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ELECTRICAL POWER SYSTEMS ACTION (Continued) l c.

With one offsite A.C. circuit and one diesel generator of the above required A.C. electrical power sources inoperable, demonstrate the l

OPERABILITY of the remaining offsite A.C.

circuit by performing Sur-l veillance 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 l

per 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> thereafter; snd, 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 j

generator by performing Surveillance Requirement 4.8.1.1.2.a.4 within i

8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> (unless it is already operating or has been tested within the last 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />).

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 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 both offsite circuits to OPERABLE status within l

72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and both diesel generators to OPERABLE status within 7 days of the initiating event or be in at least HOT STANDBY within the next l

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 />.

d.

With two offsite A.C.

circuits of the above required A.C.

electrical power sources inoperable, restore one of the inoperable l

l offsite A.C.

circuits to OPERABLE 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 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 both A.C.

circuits within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> of the initiating event 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 />.

With two diesel generators of the above required A.C. electrical

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e.

power sources inoperable, demonstrate the OPERABILITY of the two offsite 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 /> I

thereafter.

Restore one of the inoperable diesel generators to l

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 a 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 both diesel generators to OPERABLE status within 2

7 days of the initiating event 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 />.

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  • The allowable outage time for an inoperable diesel generator may be extended to 14 days for each diesel generator on a once per refueling cycle frequency.

l ARKANSAS - UNIT 2 3/4 8-2 Amendment No. 141, i

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 lE distribution system shall be:

1 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 during shutdown by transferring (manually and automatically) unit power supply l

l from the normal circuit to the alternate circuit.

)

l 4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

(Note 1)

At least once per 31 days on a STAGGERED TEST BASIS by:

l a.

1.

Verifying the fuel level in the day fuel tank.

2.

Verifying the fuel level in the fuel storage tank.

3.

Verifying the fuel transfer pump can be started and transfers fuel from the storage system to the day tank.

4.

Verifying the diesel starts from a standby condition and accelerates to at least 900 rpm in < 15 seconds.

(Note 2) 5.

Verifying the generator is synchronized, loaded to an indicated 2600 to 2850 Kw and operates for 2 60 minutes.

(Notes 3 & 4) 6.

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

b.

At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank obtained in accordance with ASTM-D270-65, is within the acceptable limits specified in Table 1 of ASTM D975-74 when checked for viscosity, water and sediment.

Note 1 All planned diesel generator starts for the purposes of these surveil-lances may be preceded by prelube procedures.

Note 2 This diesel generator start from a standby condition in s 15 sec.

shall be accomplished at least once every 184 days. All other diesel generator starts for this surveillance may be in accordance with vendor recommendations.

Note 3 Diesel generator loading may be ac complished in accordance with vendor recommendations such as gradual loading.

Note 4 Momentary transients outside this load band due to changing loads will not invalidate the test.

Load ranges are allowed to preclude over-loading the diesel generators.

ARKANSAS - UNIT 2 3/4 8-2a Amendment No. -144,

ELECTRICAL POWER SYSTEM SURVEILLANCE REQUIREMENTS (Continued) c.

At least once per 18 months by:

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1.

Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service.

2.

Verifying that the automatic sequence time delay relays are OPERABLE at their setpoint i 10% of the elapsed time for each load block.

3.

Verifying the generator capability to reject a load of 2 596 Kw and maintain voltage at 4160 i 500 volts and frequency at 60 i 3 Hz.

4.

Verifying the generator capability to reject a load of 2850 Kw without exceeding 75% of the difference between nominal speed and the overspeed_ trip setpoint, or 15% above nominal, whichever is lower.

5.

Simulating a loss of offsite power by itself, ands a

Verifying de-energization of the emergency busses and load shedding from the emergency busses.

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b.

Verifying the diesel starts from a standby condition on the undervoltage auto-start signal, energizes the emergency busses with permanently connected loads, energizes the auto-connected shutdown loads through the time delay relays and operates for 2 5 minutes while its generator is loaded with the shutdown loads.

6.

Verifying that on a Safety Injection Actuation Signal (SIAS) actuation test signal (without loss of offsite power) the diesel generator starts on the auto-start signal and operates on standby for > 5 minutes.

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i ARKANSAS - UNIT 2 3/4 8-3 Amendment No. 46,141, l

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ELECTRICAL POWER SYSTFES SURVEILLANCE REQUIREMENTS (Continued) 11.

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 simulated restoration of offsite power, b)

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

Proceed through its shutdown sequence.

12.

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) auto-matically energizes the auto-connected emergency (c ccident) loads with offsite power.

13.

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

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel generators simultaneously, during shutdown, and verifying that both diesel generators accelerate to at least 900 rpm in s 15 seconds.

I ARKANSAS - UNIT 2 3/4 8-4a Amendment No. G-1, 1,

THIS PAGE INTENTIONALLY LEFT BLANK I

ARKANSAS - UNIT 2 3/4 8-4b Amendment No. up, l

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3/4.8 ELECTRICAL POWER SYSTEMS l

BASES The OPERABILITY of the A.C. and D.C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety-related equipment required for 1) the safe shutdown of the facility and 2).the mitigation and control of accident conditions within the facility. The minimum specified independent and redundant A.C. and D.C. power sources and distribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR 50.

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

The OPERABILITY of the power sources are consistent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one redundant set 1

of onsite A.C.

and D.C. power sources and associated distribution systems l

OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C.

source. ACTION requirements are consistent with Generic Letter 84-15, " Proposed Staff Actions to Improve and Maintain Diesel Generator Reliability."

The OPERABILITY of the minimum specified A.C.

and D.C. power sources and associated distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.

l The Surveillance Requirements for demonstrating the OPERABILITY of the l

diesel generators are in accordance with the recommendations of Regulatory Guides 1.9 " Selection of Diesel Generator Set Capacity for Standby Power Supplies", March 10, 1971, and 1.108 " Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants",

Revision 1, August 1977 and Generic Letter 84-15.

Load Ranges provided in surveillances are allowed to avoid routine overloading of diesel generators.

Load in excess of these load ranges for special testing, momentary variation due to changing bus loads, or short term variations shall not invalidate surveillance tests.

For the purpose of surveillance testing, the term l

" standby condition" is defined as the approximate temperature range of the l

jacket cooling water and engine lube oil sump normally maintained by the engine keep warm system. An exception to this definition is the engine conditions that exist when performing the hot restart test following the l

24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> EDG endurance run. When performing this test, the engine is near i

normal operating temperature when in a " standby condition". Additionally, l

this definition includes the allowance to perform engine prelubrication prior to all planned test starts.

l l

1 1

ARKANSAS - UNIT 2 B 3/4 8-1 Amendment No. 144,-144,

. ~

. - - - ~. -..

ADMINISTRATIVE CONTROLS ANNUAL REPORTS 1/

6.9.1.4 Annual reports covering the activities of the unit as described below for the previous calendar year shall be submitted prior to March 1 of each year. The initial report shall be submitted prior to March 1 of the year following initial criticality.

6.9.1.5.

Reports required on an annual basis shall include:

a.

A tabulation on an annual basis for the number of station, utility and other personnel (including contractors) receiving exposures greater than 100 mrem /yr and their asgociated man rem exposure according to work and job functions,2, e.g.,

reactor operations and surveillance, inservice inspection, routine maintenance, special maintenance (describe naintenance), waste processing, and refueling. The dose assignment to various duty functions may be j

estimates based on pocket dosimeter, TLD, or film badge i

measurements.

Small exposures totalling less than 20% of the individual total dose need not be accounted for.

In the I

aggregate, at least 80% of the total whole body dose received from external sources shall be assigned to specific major work l

functions.

b.

The complete results of steam generator tube inservice inspections l

performed during the report period (reference Specification 4.4.5.5.b).

I c.

Documentation of all challenges to the pressurizer safety valves.

d.

Deleted l

e.

The results of specific activity analysis in which the primary coolant exceeded the limits of Specification 3.4.8.

The following information shall be included:

(1) Reactor power history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to the first sample in which the limit was exceeded; (2) Results of the last isotopic analysis for radiciodine performed prior to exceeding the limit, results of analysis while limit was exceeded the results of one analysis after the radiciodine activity was reduced to less than limit.

Each result should include date and time of sampling and the radioiodine concentrations; (3) Clean-up system flow history 1/

A single submittal may be made for a multiple unit station. The submittal should combine those sections that are common to all units at the station.

2/

This tabulation supplements the requirements of S20.407 of 10 CFR Part 20.

i l

I l

l l

ARKANSAS - UNIT 2 6-15 Amendment No. 6,44,M,M,

MARKUP OF CURRENT ANO-1 TECHNICAL SPECIFICATIONS (FOR INFO ONLy) l I

4 BASES (continusd) initiated or that higher modes of operation are not entered when corrective l

action is being taken to obtain compliance with a Specification by restoring equipment to OPERABLE status or parameters to specified limits.

Compliance i

with Action requirements that permit continued operation of the facility for an unlimited period of time provides an acceptable level of safety for continued operation without regard to the status of the plant before or after a mode change.

Therefore, in this case, if the requirements for continued operation have been met in accordance with the requirements of the specification, then entry into that mode of operation is perndssible. The provisions of this specification should not, however, be interpreted as endorsing the failure to exercise good practice in restoring systems or components to OPERABLE status before plant startup.

When a shutdown is required to comply with Action requirements, the provisions of Specification 3.0.4 do not apply because they would delay placing the facility in a lower mode of operation.

For the purpose of compliance with this specification the term ' shutdown' is defined as a required reduction in the REACTOR OPERATING CONDITION.

3.0.5 Delineates what additional conditions must be satisfied to permit operation to continue when a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

The provisions of this specification permit the Limiting Condition for Operation statements associated with individual systems, subsystems, trains, components or devices to be consistent with the Limiting condition for Operation statements of the associated electrical power source.

It allows l

operation to be governed by the time limits of the Limiting Condition for Operation for the normal or emergency power source, not the individual Limitin'; Condition for Operation statements for each system, subsystem, train, component or device that is determined to be inoperable solely because of the 1

inoperability of its normal or emergency power source.

For example, Specification 3.7.2.C provides fee-an ' day out-of-service time l

when one emergency diesel generator is not OPERABLE.

If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components and devices supplied by the inoperable emergency power source would also be inoperable. This would dictate invoking the applicable Action statements for each of the applicable Limiting Conditions for Operation.

However, the provisions of Specification 3.0.5 permit the time limits for continued operation to l

l Amendment No. M,M1,4-M, 15b-3 1

3.7.2 A.

Tha spscifications in 3.7.1 may be modified to allow one of tha following conditions to wxist after tha remetor has been heated above 200F.

Except as indicated in the following conditions, if any of these conditions are not met, a hot shutdown shall be initiated within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

If the condition is not cleared within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />, the reactor shall be brought to cold shutdown within an additional 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

B.

In the event that one of the offsite power sources specified in 3.7.1.A (1 or 2) is inoperable, reactor operation may continue for up to 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> if th: cvailability cf the diesel generator ir i== edict:1y verified.,after which Specification 3.7.2.A shall apply.

C.

Either one of the two diesel generators may be inoperable for 1

up to 7 days in any month provided that during such ' day: the Z

operability of the remaining diesel generator is demonstrated immediately and dakly therccfbeewithin 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, there are no inoperable ESF components associated with the operable diesel generator, and provided that the two sources of offsite power specified in 3.7.1. A(1) or 3.7.1. A(2) are available.

If the diesel generator is not returned to service at the end of the l

7 dav period, Specification 3.7.2.A shall apply.

D.

Any 4160V, 480V, or 120V switchgear, load cen*er, motor control center, or distribution panel in one of the two ESF distribution systems may be inoperable for up to 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, provided that the operability of the diesel generator ass iated with the operable ESF distribution system fe ec ctrated i== edict:1y and all of the components of the ep able distribution system are operable.

If the ESF distribution system is not returned to service at the end of

)

the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period, Specification 3.7.2.A shall apply.

E.

With no operable battery charger associated with one station battery, operation is allowed to continue for a period of 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> provided at least one battery charger is operable on the opposite train, after which Specification 3.7.2.A shall apply.

F.

One of the two station batteries and the associated distribution system may be inoperable for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> provided that there are no inoperable safety related components associated with the remaining station battery which are redundant to the inoperable station battery-and th:

Operability of the dic::1 generater 1: verified-i==ediately.

If the battery is not returned to service at the end of the 8 hour9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> period, Specification 3.7.2.A shall apply.

G.

Two control power sources from the plant to the switchyard and the attendant distribution system may be inoperable for 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />, after which Specification 3.7.2.A shall apply.

H.

If the requirements of Specification 3.7.1.G cannot be met, either:

(1) place all Startup Transformer No. 2 feeder breakers in

" pull-to-lock" within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br />, restore the inoperable interlocks to operable status within 30 days, or submit within 30 days a Special Report pursuant to Specification 6.12.5 outlining the cause of the failure, proposed corrective action and schedule for implementation; or i

(2) apply the action requirements of Table 3.5.1-1, Note 14.

3 The allowable outace time for an inoperable diesel aenerator may be extended to 14 days for each diesel cenerator on a once per refuelino cycle frecuency.

2 The operability of the remainina diesel cenerator can be demonstrated by either determinina the diesel cenerator is not inoperable due to a common cause failure or by startina the diesel oenerator from the control room and verifyino rated speed and voltage are achieved within 15 seconds.

Amendment No. 64,446,-141,446, 57 l

l MARKUP OF CURRENT ANO-2 TECHNICAL SPECIFICATIONS (FOR INFO ONLY)

{

BASES (Continurd) operation is not initiated or that higher modes of operation are not entered when corrective ACTION is being taken to obtain compliance with a specification by restoring equipment to OPERABLE status or parameter to specified limits. Compliance with ACTION requirements that permit continued operation of the facility for an unlindted period of time l

provides an acceptable level of safety for continued operation without regard to the status of the plant before or after a mode change.

Therefore, in this case, if the requirements for continued operation have been met in accordance with the requirements of the specification, then entry into that mode of operation is permissible. The provision of this specification should not, however, be interpreted as endorsing the failure to exercise good practice in restoring systems or components to OPERABLE status before plant startup.

When a shutdown is required to comply with ACTION requirements, the provisions of Specification 3.0.4 do not apply because they would delay placing the facility in a lower mode of operation.

For the purpose of compliance with this specification the term shutdown is defined as a required reduction in mode.

3.0.5 This specification delineates what additional conditions must be satisfied to permit operation to continue, consistent with the ACTION statements for power sources, when a normal or emergency power source is not OPERABLE.

It specifically prohibits operation when one division is inoperable because its normal or emergency power source is inoperable and a system, subsystem, train, component or device in another division is inoperable for another reason.

l The provisions of this specification perndt the ACTION statements associated with individual systems, subsystems, trains, components, or devices to be consistent with the ACTION statements of the associated l

electrical power source.

It allows operation to be governed by the time limits of the ACTION statement associated with the Limiting Condition for Operation for the normal or emergency power source, not the individual l

ACTION statements for each system, subsystem, train, component or device that is determined to be inoperable solely because of the inoperability of its normal or emergency power source.

For example, Specification 3.8.1.1 requires in part that two emergency diesel generators be OPERABLE. The ACTION statement provides fer-an 72 hour8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> l-out-of-service time when one emergency diesel generator is not OPERABLE.

t If the definition of OPERABLE were applied without consideration of Specification 3.0.5, all systems, subsystems, trains, components, and devices supplied by the inoperable emergency power source would also be inoperable. This would dictate invoking the applicable ACTION statements for each of the applicable Limiting Conditions for Operation.

However, the provisions of Specification 3.0.5 permit the time limits for continued operation to be consistent with the ACTION statement for the inoperable l

l

}

l ARKANSAS - UNIT 2 B 3/4 0-1c Amendment No. 144, l

REACTOR CCOLANT SYSTEM i

PRESSURIZER LIMITING CONDITION FOR OPERATION I

P 3.4.4 The pressurizer shall be OPERABLE with a water volume of s 910 cubic feet (equivalent to s 82% of wide range indicated level) and both pressurizer proportional heater groups shall be OPERABLE.

APPLICABILITY: MODES 1, 2 and 3.

ACTION:

(a)

With the pressurizer inoperable due to water volume 2 910 cubic feet, be in at least HOT SHUTDOWN with the reactor trip breakers open within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

(b)

With the pressurizer inoperable due to an inoperable :::rgency por:*

supply to the pre::uri::: h::t::: proportional heater aroup, either restore the inoperable :: rg ncy p x:: supply proportional heater aroup 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 SHUTDOWN within 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

SURVEILLANCE REQUIREMENTS 4.4.4.1 The pressurizer water volume shall be determined to be within its limits at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br />.

4.4.4.2 The pressurizer proportional heater groups shall be determined to be OPERABLEr l

(:)

  • t 1:::t' n : p:: 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> by verifying : rgency p :: i: available I

to th: h::ter g cup, and fbt Aat least once per 18 months by verifying that the summed power l

consumption of the two proportional heater groups is 2 150 KW.

I ARKANSAS - UNIT 2 3/4 4-5 Amendment No. M,

3/4.8 ELECTRICAL POWER SYSTEMS 3/4.8.1 A.C.

SOURCES LIMITING CONDITION FOR OPERATION 3.8.1.1 As a minimum, the following A.C. electrical power sources shall be OPERABLE:

Two physically independent circuits between the offsite a.

transmission network and the onsite class lE distribution system and b.

Two separate and independent diesel generators each with:

1.

A day fuel tank containing a minimum volume of 280 gallons l

of fuel (equivalent to 50% of indicated tank volume),

1 l

2.

A separate fuel storage system containing a minimum volume of 22,500 gallons of fuel (equivalent to 100% of indicated tank level), and 3.

A separate fuel transfer pump.

APPLICABILITY: MODES 1, 2, 3 and 4.

ACTION:

a.

With one offsite A.C.

circuit of the above required A.C.

electrical power sources inoperable, demonstrate the OPERABILITY of the remaining offsite A.C.

circuit by performing Surveillance l

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 eith:2 di:::1 gener:to: h: n:t been su;;;:sfully tested within the pact 2t hours, d =cn=t:st its j

l 0"En?."!LITY by p:: forming Surveill ne nequirc= nt 4.9.1.1.2.

.4 l

p:::t:17 f: ::ch dies:1 g: :: te: 'unic : it i: : :::dy :p : -

ting) within 2*e-heurer 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 the above required A.C. electrical power source inoperable, demonstrate the OPERABILITY of both the l

offsite A.C. circuits by perforndng Surveillanen 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, i

If the diesel generator became inoperable due to any cause other l

than preplanned preventive maintenance or testing, demonstrate I

the OPERABILITY of the remaining OPERABLE diesel generator (unless it has been successfully tested in the last 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> or is already l

operating) by performing Surveillance Requirement 4.8.1.1.2.a.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 generator to OPERABLE status l

within 72 heur: 7 davs* or be in at least HOT STANDBY within the l

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 />.

l i

)

' The allowable outaae time for an inoperable diesel aenerator may be extended l,

to 14 days for each diesel aenerator on a once per refuelina cycle frecuency.

l ARKANSAS - UNIT 2 3/4 8-1 Amendment No. 444, i

h

ELECTRICAL POWER SYSTEMS ACTION (Continued) c.

With one offsite'A.C. circeit 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-i veillance 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; and, if the diesel generator became inoperable i

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 4.8.1.1.2.a.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 or has been tested within i

the last 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br />).

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 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 both offsite circuits and both diesel generators to OPERABLE status within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> and both diesel aenerators to OPERABLE status within 7 days

  • of the initiating event 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 fcilowing 30 hours3.472222e-4 days <br />0.00833 hours <br />4.960317e-5 weeks <br />1.1415e-5 months <br />.

i d.

With two offsite A.C.

circuits of the above required A.C.

electrical power sources inoperable p :fer: Surveill:n : ncquir -

l ment

'.S.1.1.2.

.' :n the dic::1 gen :ater:.:ithir the n:nt 0 h:::: 'unic;: th; dic;;l ;;nt :t;;; ::: circ;dy p :: ting :: h;;;

i ic:n ::::::: fully t :ted within the past S hours).

D gestore one a

l of the inoperable offsite A.C.

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

I 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 both A.C. circuits within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> of the initiating event or be in at l

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 />.

t l

e.

With two diesel generators of the above required A.C. electrical i

power sources inoperable, demonstrate the OPERABILITY of the two offsite 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 /> c

thereafter. Restore one of the inoperable diesel generators to l

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 a 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 both diesel generators to OPERABLE status within 72 h;;;; 7 davs* of the initiating event 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 />.

l l

l l

  • The allowable outace time for an inoperable diesel cenerator may be extended to 14 days for each diesel cenerator on a once per refuelino evele frecuency.

i ARKANSAS - UNIT 2 3/4 8-2 Amendment No. 3,

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 lE distribution system shall bet Determined OPERABLE at least once per 7 days by verifying correct i

a.

breaker alignments, indicated power availability, and b.

Demonstrated OPERABLE at least once per 18 months during shutdown bye transferring (manually and automatically) unit power supply l

from the normal circuit to the alternate circuit.

l 4.8.1.1.2 Each diesel generator shall be demonstrated OPERABLE:

(Note 1) l l

a.

Ir ::::: dance with the fr quency :p :ified in T:ble 4. S 1 ?.t least l

once per 31 days on a STAGGERED TEST BASIS by:

1.

Verifying the fuel level in the day fuel tank.

2.

Verifying the fuel level in the fuel storage tank.

3.

Verifying the fuel cransfer pump can be started and transfers fuel from the storage system to the day tank.

4.

Verifying the diesel starts from a standby condition and l

accelerates to at least 900 rpm in < 15 seconds.

(Note 2) l 5.

Verifying the generator is synchronized, loaded to an indicated 2600 to 2850 Kw and operates for 2 60 minutes.

(Notes 3 & 4) 6.

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

b.

At least once per 92 days by verifying that a sample of diesel fuel from the fuel storage tank obtained in accordance with ASTM-D270-65, is within the acceptable limits specified in Table l

1 of ASTM D975-74 when checked for viscosity, water and sediment.

Note 1 l

All planned diesel generator starts for the purposes of these surveil-lances may be preceded by prelube procedures.

Note 2 This diesel generator start from a standby condition in s 15 sec.

l shall be accomplished at least once every 184 days.

All other diesel l

generator starts for this surveillance may be in accordance with vendor recommendations.

Note 3 l

Diesel generator loading may be accomplished in accordance with vendor i

recommendations such as gradual loading.

Note 4 Momentary transients outside this load band due to changing loads w211 not invalidate the test.

Load ranges are allowed to preclude over-loading the diesel generators.

ARKANSAS - UNIT.'

3/4 8-2a Amendment No. 1,

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.~ _. _. - _._ -

ELECTRICAL POWER SYSTEM SURVEILLANCE REQUIREMENTS (Continued) c.

At least once per 18 months during shutdown by:

l 1.

Subjecting the diesel to an inspection in accordance with procedures prepared in conjunction with its manufacturer's recommendations for this class of standby service.

2.

Verifying that the automatic sequence time delay relays are OPERABLE at their setpoint i 10% of the elapsed time for each load block.

3.

Verifying the generator capability to reject a load of 2 596 Kw and maintain voltage at 4160 i 500 volts and frequency at 60 i 3 Hz.

4.

Verifying the generator capability to reject a load of 2850 Kw without exceeding 75% of the difference between nominal speed and the overspeed trip setpoint, or 15% above nominal, whichever is lower.

5.

Simulating a loss of offsite power by itself, ands a

Verifying de-energization of the emergency busses and load shedding from the emergency busses.

b.

Verifying the diesel starts from a standby concition on the undervoltage auto-start signal, energizes the emergency busses with permanently connected loads, energizes the auto-connected shutdown loads through the time delay relays and operates for 2 5 minutes while its generator is loaded with the shutdown loads.

6.

Verifying that on a Safety Injection Actuation Signal (SIAS) actuation test signal (without loss of offsite power) the diesel generator starts on the auto-start signal and operates on standby for > 5 minutes.

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l ARKANSAS - UNIT 2 3/4 8-3 Amendment No. 46,441,

1 ELECTRICAL POWER SYSTEMS i

SURVEILLANCE REQUIREMENTS (Continued) i 1

11.

Verifying the diesel generator's capability to:

l a)

Synchronize with the offsite power source while the l

generator is loaded with its emergency loads upon a simulated restoration of offsite power, b)

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

Proceed through its shutdown sequence, l

i 12.

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) auto-matica11y energizes the auto-connected emergency (accident) loads with offsite power.

13.

Verifying that the fuel transfer pung transfers fuel from each fuel storage tank to the day tank of each diesel via the installed cross connection lines.

d.

At least once per 10 years or after any modifications which could affect diesel generator interdependence by starting both diesel generators simultaneously, during shutdown, and verifying that both diesel generators accelerate to at least 900 rpm in s 15 seconds, t.S.1.1.3 nep :t:

Sp: ific:ti:n 5.0.1.5.d.

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i ARKANSAS - UNIT 2 3/4 8-4a Amendment No. M,-1-44, 1

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ARKANSAS - UNIT 2 3/4 8-4b Amendment No. 44ib

l 3/4.8 ELECTRXCAL POWER SYSTEMS l

BASES l

The OPERABILITY of the A.C.

and D.C. power sources and associated distribution systems during operation ensures that sufficient power will be available to supply the safety-related equipment required for 1) the safe shutdown of the facility and 2) the mitigation and control of accident conditions within the facility.

The minimum specified independent and redundant A.C.

and D.C. power sources and distribution systems satisfy the requirements of General Design Criteria 17 of Appendix "A" to 10 CFR 50.

The ACTION requirements specified for the levels of degradation of the power sources provide restriction upon continued facility operatien commensurate with the level of degradation.

The OPERABILITY of the power sources are consistent with the initial condition assumptions of the accident analyses and are based upon maintaining at least one redundant set of onsite A.C.

and D.C. power sources and associated distribution systems OPERABLE during accident conditions coincident with an assumed loss of offsite power and single failure of the other onsite A.C.

source. ACTION requirements are consistent with Generic Letter 84-15, " Proposed Staff Actions to Improve and Maintain Ilesel Generator Reliability."

The OPERABILITY of the minim 2m specified A.C.

and D.C.

power sources and associated distribution systems during shutdown and refueling ensures that 1) the facility can be maintained in the shutdown or refueling condition for extended time periods and 2) sufficient instrumentation and control capability is available for monitoring and maintaining the unit status.

The Surveillance Requirements for demonstrating the OPERABILITY of the diesel generators are in accordance with the recommendations of Regulatory Guides 1.9 " Selection of Diesel Generator Set Capacity for Standby Power Supplies", March 10, 1971, and 1.108 " Periodic Testing of Diesel Generator Units Used as Onsite Electric Power Systems at Nuclear Power Plants",

Revision 1, August 1977 and Generic Letter 84-15.

Load Ranges provided in surveillances are allowed to avoid routine overloading of diesel generators.

Load in excess of these load ranges for special testing, momentary variation due to changing bus loads, or short term variations shall not invalidate surveillance tests.

For the purpose of surveillance testing, the term

" standby condition" is defined as the approximate temperature range of the jacket cooling water and engine lube oil sump normally maintained by the engine keep warm system. An exception to this definition is the engine conditions that exist when performing the hot restart test following the 24 hour2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> EDG endurance run.

When performing this test, the engine is near normal operating temperature when in a " standby conoition".

Additionally, this definition includes the allowance to perform engine prelubrication prior to all planned test starts.

Th Diesel Centrator Test Schedule, Table 0.9 1 h:: bcen developed for the purp :: cf-determining testing requirerent based on the number of failure: :nd valid t :t: using the enemple provided in Centric Letter j

41-- 15 using a per di:::1 gencretor unit b: ic.

The criteri: cf ".C.I.109 peei-t-len C. 2.

i: used for criteri:1 dee-rialeat-iefw-l i

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ARKANSAS - UNIT 2 B 3/4 8-1 Amendment No. 44,-146, i

f l

l ADMINISTRATIVE CONTROLS ANNUAL REPORTS 1/

l 6.9.1.4 Annual reports covering the activities of the unit as described i

below for the previous calendar year shall be submitted prior to March 1 of l

each year.

The initial report shall be submitted prior to March 1 of the j

year following initial criticality.

l 6.9.1.5.

Reports required on an annual basis shall include:

i a.

A tabulation on an annual basis for the number of station, utility and other personnel (including contractors) receiving exposures greater than 100 mrem /yr and their associ according to work and job functions,2/ e.ated man rem exposure r

g.,

reactor operations l

and surveillance, inservice inspection, routine maintenance, special maintenance (describe maintenance), waste processing, and refueling. The dose assignment to various duty functions may be estimates based on pocket dosimeter, TLD, or film badge measurements.

Small exposures totalling less than 20% of the individual total dose need not be accounted for.

In the aggregate, at least 80% of the total whole body dose received from external sources shall be assigned to specific major work functions.

b.

The complete results of steam generator tube inservice inspections perfonned during the report period (reference Specification 4.4.5.5.b).

c.

Documentation of all challenges to the pressurizer safety valves.

d.

? diesel ;;n; ster det: : pert which prcvid : the nush:2 of valid test: :nd th; nu=h:2 of valid failu::: f:: ::ch dice:1 g:ncr t :.

Deleted e.

The results of specific activity analysis in which the primary coolant exceeded the limits of Specification 3.4.8.

The following information shall be included:

(1) Reactor power history starting 48 hours5.555556e-4 days <br />0.0133 hours <br />7.936508e-5 weeks <br />1.8264e-5 months <br /> prior to the first sample in which the limit was exceeded; (2) Results of the last isotopic analysis for radiciodine performed prior to exceeding the limit, results of analysis while limit was exceeded the results of one analysis after the radioiodine activity was reduced to less than limit.

Each result should include date and time of sampling and the radiciodine concentrations; (3) Clean-up system flow history 1/

A single submittal may be made for a multiple unit station. The submittal should combine those sections that are common to all units at the station.

2/

This tabulation supplements the requirements of S20.407 of 10 CFR Part 20.

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l ARKANSAS - UNIT 2 6-15 Amendment No. E 4+,M, M,

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