ML20091D584

Proposed Tech Spec Table 3.3-6 Re Radiation Monitoring Instrumentation & 4.3-3 Re Radiation Monitoring Instrumentation Surveillance Requirements

ML20091D584
Person / Time
Site:	Arkansas Nuclear
Issue date:	10/11/1991
From:	ENTERGY OPERATIONS, INC.
To:
Shared Package
ML20091D562	List: 2CAN109109, Suppls 910220 Application for Amend to License NPF-6, Revising TS Tables 3.3-6 & 4.3-3 to Require Process Monitor for Gaseous Activity Purge & Exhaust Isolation to Be Operable When Monitor Actually in Use ML20091D584
References
NUDOCS 9110250100
Download: ML20091D584 (5)

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' TABLE 3.3-6 e

l RADIATION MONITORING INSTRUMENTATION MINIMUM CHANNET.S

. APPLICABLE' ALARM / TRIP.

MEASUREMENT INSTRUMENT OPERABLE

' MODES SETFOINT RANGE ACTION 1.

AREA MONITORS a.

Spent Fuel Pool Area Monitor 1-Note 1

.5 1.5x10 2 R/br'

'10 ' - 102 R/hr 13 l

b.

Containment High 7

. Range 2

1, 2, 3 I: 4 Not Applicable 1 - 10 R/br.

18 2.

PROCESS MONITORS a.

Containment

i.. Gaseous Activity al Purge & Exhaust l

Isolation 1

5&6 5 2 2 background 10 - 10' cpm 16 b) RCS Leakage Detection, 1

1, 2, 3 & 4 Not Applicable 10 - 108 cpm 14

11. Particulate Activity a) RCS Leakage Detection 1.

1, 2, 3 & 4 Not Applicable 10 - 10'. cpm 14 b.

Control, Room Ventilation Intake Duct Monitor

.1 ALL MODES 5 2 x background 10 - 10' cpm 17 Note 1 - With fuel in the spent fual pool or building l

ARKANSAS - UNIT 2 3/4 3-25 Amendment No. 63,

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, 4 m."n' l TABLE 3.3-6 (Cqn.tinued) i TABLE NOTATION.

ACTION 13 -

With-the number of channels OPERABLE 1ess than. required by

-the Minimum Channels OPERABLE requirement, perform area surveys of the monitored area with portablo monitoring instrumentation at least once per 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

ACTION 14 -

With the number of channels 0PERABLE less than required by the Minimum Channels OPERABLE requirement, comply with the ACTION Requirements of Specification 3.4.6.1.

ACTION 16 -

With the' number'of OPERABLE channels one less-that. the Minimum Channels OPERABLE requirement, completa the following:

a. If performing CORE AbTERATIONS or moving irradiated fuel within the reactor _ building, secure the containment purge system or suspend CORE ALTERATIONS and movement of irradiated fuel within the reactor building.

b. If a containment PURGE is in progress, secure the containment purge system.

c. If continuously ventilating, verify the SPING monitor operable or perform the ACTIONS of 3.3.3.9, or secure the containment purge system.

ACTION 17 -

With the number of channels OPERABLE loss than required by the Minimum Chcnnels OPERABLE requirement, within 1 hour1.157407e-5 days <br />2.777778e-4 hours <br />1.653439e-6 weeks <br />3.805e-7 months <br /> initiate and maintain operation of the control room emergency ventilation system in the recirculation mode of operation.

ACTION 18 -

With-the number of channels OPERABLE one less than required by the Minimum Channels OPERABLE requirement, (1) cither restore the inoperable channel to OPERABLE statua within 7 days or (2) prepare and. submit a:Special Report to the Commission pursuant to Specification 6.9.2 within 30 days following the event, outlining the action taken, the cause of the inoperability, and the plans and schedule for restoring the system to OPERABLE status. With both channels inoperable, initiate alternate methods of monitoring the containment radiation level within 72 hours8.333333e-4 days <br />0.02 hours <br />1.190476e-4 weeks <br />2.7396e-5 months <br /> in addition to the actions described above.

ARKANSAS - UNIT 2 3/4 3-26 Amendment No. f3,

TABLE 4.3-3

' RADIATION MONITORING INSTRUMENTATION SURVEILLANCE REOUIREMENTS' CHANNEL MODES IN WHICH CHANNEL CHANNEL FUNCTIONAL SURVEILLANCE INSTRUMENT CHECK CALIBRATION

'iEST REOUIRED 1.

AREA MONITORS a.

Spent Fuel Pool Area Monitor S.

R M

Note 1 b.

Containment High Range S

R Note 4 M

1, 2, 3, & 4 2.

PROCE3S MONITORS a.

Containment

i. Gaseous Activity a) Purge & Exhaust Isolation Note 2 R

Note 3 5 & 6 l

b) RCS Leakage i

Detection.

S R

M 1, 2, 3, & 4 11.

Particulate Activity a) RCS Leakage Detection S

R M

1, 2, 3, & 4 b.

Control Room Ventilation Intake Duct Monitor S

R M

ALL MODES Note 1 - With fuel in the spent fuel pool or building.

Note 2 - Within 8 hours9.259259e-5 days <br />0.00222 hours <br />1.322751e-5 weeks <br />3.044e-6 months <br /> prior to initiating containment purge operations and at least once per 12 hours1.388889e-4 days <br />0.00333 hours <br />1.984127e-5 weeks <br />4.566e-6 months <br /> during containment purge operations.

Note 3 - Within 31 days prior:to initiating containment purge operations and at : cast once per 31 days during containment purge operations.

Note 4 - Acceptable criteria for calibration are provided in Table II.F.1-3 of NUREG-0737.

ARKANSAS - UNIT 2 3/4 3-27 Amendment No. 63,

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3/4J3' INSTRUMENTATION.

-BASES ~

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~ 2/4. 3.] MONITORING INSTRUMENTATION s

3/4.3.3.1' RADIATION MONIIQRING_ INSTRUMENTATION.

The OPERABII.ITY of the radiation monitoring channels ensures that 1) the radiation levels are continually measured in the areas served by the individual channels and 2) the alarm or automatic action is initiated when

'the radiation level trip setpoint is= exceeded.

The PURGE as defined in the definitions section is'a release under an purge permit,'whereas continuous ventilation is defined as_ operation of tho' purgo system after the requirements of.the purge permit have been. satisfied.

When securing the' containment purge system to meet _the ACTION requirements of this Specification, at least one supply valve and one exhaust valve is to be closed, and the supply'and exhaust fans secured.

3/4.3.3.2 ilNCORE_ DETECTORS Tha OPERABILITY of the incore detectors with the specified minimum

complement of equipment ensures that the measurements obtained'from use of this system accurately represent the spatial neutron flux distribution of

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the reactor core.

-3/4.3.3.3' SEISMIC INSTRUMENTATION The OPERABILITY of the seismic instrumentation ensures that sufficient. capability is available to_promptly determine the magnitude of a seismic' event and evaluate the response of those features important to

-safety. This capability is required to' permit comparison of the measured response.to_:that_used_in the design basis forJthe facility to determine if plant shutdoen' is required pursuant to Appendix "A" of 10 CFR Part 100.

The instrumentation is consistent with the recommendations of Safety Guide 12,~" Instrumentation 1for Earthquakas," March, 1971.

3/4.3.3.4 -METEOROLOGIRAL INSTRUMENTATION The OPERABILITY of the meteorological instrumentation ensures that sufficient muteorological data is available for estimating potential radiation ~ doses to the public as a result of routino or accidental. release of ~ radioactive ' materials to the atmosphere. This capability is required to evaluate the need_for initiating protective measures to protect the

' health and safety of the public and is consistent with the recommendations of Regulatory Guide 1.23 "Onsite Meteorological Programs," February 1972.

3/4.3.3.5 REMOTE SHUTDOWN INSTRUMENTATION Tha OPERABILITY of the remote shutdown instrumentation ensures that sufficient capability-is available to permit shutdown and maintenance of HOT STANDBY of the facility f rom locations outside of the control room.

This-capability is required in the event control room habitability is lost L

and'is consistent with General Design Criteria 19 of 10 CFR 50.

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L ARKANSAS - UNIT 2 B 3/4 3-2 Amendment No. 33,JJP,

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