ML20150A685

Amend 150 to License DPR-49,revising Requirement for Logic Sys Functional Testing by Extending Interval for Performance of Tests from Annually to Once Per Operating Cycle

ML20150A685
Person / Time
Site:	Duane Arnold
Issue date:	06/23/1988
From:	Perkins K Office of Nuclear Reactor Regulation
To:
Shared Package
ML20150A688	List: ML20150A685 ML20150A699 ML20150A709
References
NUDOCS 8807080145
Download: ML20150A685 (9)

Text

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IOWA ELECTRIC LIGHT AND POWER COMPANY CENTRAL IOWA POWER COOPERATIVE CORN BELT POWER COOPERATIVE DOCKET NO. 50-331 DUANE ARN0LD ENERGY CENTER AMENDMENT TO FACILITY OPERATING LICENSE Amendment No.150 License No. DPR-49 1.

Tne Nuclear Regulatory Comission (the Comission) has found that:

A.

The application for amendment by Iowa Electric Light and Power Company, et al., dated December 11, 1987 complies with the standards and requirements of the Atomic Energy Act of 1954, as amended (the Act), and the Comission's rules and regulations set forth in 10 CFR Chapter I; B.

The facility will operate in confornity with the application, the provisions of the Act, and the rule. and regulations of the Comission; C.

There is reasonable assurance N/ 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 Comission's regulations; i

D.

The issuance of this amendment will not be inimical to the comon 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 Comission's regulations and all applicable requirements I

have been satisfied.

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2.

Accordingly, the license is amended by changes tc the Technical Specifi-l cations as indicated in the attachment to this license amendment and paragraph 2.C.(2) of Facility Operating License No. DPR-49 is hereby amended to read as follows:

8807000145 880623 PDR ADOCK 05000331 P

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. (2), Technical Specifications The Technical Specifications contained in Appe.nd <

as revised through Amendcaent No.150, are hereb,

..corporated in the license.

The licensee shall operate the facility in accordance with the Technical Specifications.

3.

The license amendment is effective as of the date of issuance and shall be implemented within 3,0 days of the date of issuance.

FOR THE REGULATORY COMMISSION b

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3 Kenneth E. Perkirs, Director Project Directorate III-3 Division of Reactor Projects - III, IV, V and Special Projects

Attachment:

l Changes to the Technical Specifications Date of Issuance:

June 23, 1988 i

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i ATTACHMENT TO LICENSE AMENDMENT N0.'150 FACILITY OPERATING LICENSE N0. OPR-49 DOCKET NO. 50-331 Replace the following pages of the Appendix A Technical Specifications with the enclosed pages. The revised areas are-indicated by marginal lines.

REMOVE INSERT 1.0-6 1.0-6 3.2-24 3.2-24 3.2-25 3.2-25 3.2-27

'3.2-27 3.2-29 3.2-29 3.2-33 3.2-33 I

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22.

INSTRUMENTATION a.

Instrunent Calitsration or Channel Calibration - An Instrunent Calibration means the verification or adjustment of an instrunent signal output so that it corresponds, within acceptable range and accuracy, to a known value(s) of the parameter which the instrunent monitors.

The acceptable range and accuracy of an instrunent and its setpoint are given in the system design control docunent and its setpoint is used in the Technical Specifications.

Instrunent ca',ibration may be performed by any series of sequential, overlapping, or total channel steps such that the entire instrunent is calibrated.

Instrument calibration includes the Instrunent or Channel Functional Test, as appropriate.

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b.

Channel - A channel is an arrangement of a sensor and associated components used to evaluate plant variables and produce discrete ot,tputs used in logic. A channel tenninates and loses its identity where individual channel outputs are combined in logic, c.

Instrunent or Cnannel Functional Test - An Instrument or Channel Functional Test for (1) Analog channels means the injection of a simulated signal into the channel as close to the sensor as practicable to verify the proper response, alarm, and/or initiating action.

(2) Bistable channels means the injection of a simulated signal into the sensor to verify the proper response, alarm and/or initiating action.

d.

Instrunent or Channel Check - An instrument or channel check is a qualitative determination of acceptable operability by observation of instrunent behavior during operation.

This detennination shall include, where possible, comparison of the instrument or channel with another independent instrunent measuring the same variable.

e.

Logic System Functional Test - A Logic System Functional Test shall be a test of all logic componen';,

i.e., relays and j

contacts, of a logic circuit that perfoi.n a safety function, from sensor through and inclu ing "le actuated device, to verify OPERA 8ILITY.

The Logic Systei Functional Test may be performed by any series of sequential, over Lpping or total system steps such l

that the entire logic system is tested, f.

Trip System - A trip system means an arrangement of instrunent channel trip signals and auxiliary equipment required to initiate action to accomplish a protective trip function. A trip system may require one or more instrument channel trip signals _ related to l

one or more plant parameters in order to initiate trip system i

action.

Initiation of protective action may require the tripping l

of a single trip system or the coincident tripping of two trip l

systems.

g.

Protection Action - An action initiated by the protection system when a limit is reached. A protective action can be at a channel or system level.

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1.0-6 Amendment No. )pp, ))f, J/p,150

TABLE 4.2-A MINIMUM TEST AND CALIBRATION FREQUENCY FOR PCIS Instr ment Calibration Instrunent Instrument Channel (5)

Functional Test (9)

Frequency (9)

Check

1) Reactor Low Pressure (Shutdown (1)

Once/3 months None Cooling Permissive)

2) Reactor Low-Low Water Level (1)

Once/3 months Once/ shift

3) Main Steam High Temp.

(1)

Annual Once/ day

4) Reactor Low Water Level (1)

Annual Once/ shift

5) Main Steam High Flow (1)

Once/3 months Once/ shift

6) Main Steam Low Pressure (1)

Onc,e/3 months None 4

7) Reactor Water Cleanup High Flow (7)

(1)

Once/3 months Once/ day

8) High Drywall Pressure (1)

Once/3 months None

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9) Reactor Lleanup Area High Temp. (8)

(1)

Annual None h

10) High Radiation Main Steam Line Tunnel (1)

Once/ operating cycle Once/ shift l

11) Loss of Main Condenser Vacuum (1)

Annual None Logic System Functional Test (6)

Logic Test Frequency N

1) Main Steam Line Isolation Valves Once/ operating cycle ma Main Steam Line Drain Valves g

Peactor Water Sample Valves

2) RHR - Isolation Valve Control Once/ operating cycle 5

Shutdown Cooling Valves

3) Reactor Water Cleanup Isolation Once/ operating cycle e

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TABLE 4.2-A (Continued) 4 MINIMUM TEST AND CALIBRATION FREQUENCY FOR PCIS 4

J Logic System Functional Test (6)

Logic Test Frequency-

4) Drywell Isolation Valves Once/ operating cycle TIP Withdrawal l

Atmospheric Control Valves 1

Sump Drain Valves I

5) Standby Gas Treatment System Once/ operating cycle j

Reactor Building Isolation M

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4 M

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TABLE 4.2-B (Continued) j MINIMUM TEST AND CALIBRATION FREQUENCY FOR CSCS l

Logic System Functiunal Test (6)

Logic Test Frequency 1)

Core Spray Subsystem Once/ operating cycle 2)

Low Pressure Coolant Injection Once/ operating cycle Subsystem j

3) Containment Spray Subsystem Once/ operating cycle

4) HPCI Subsystem Once/ operating cycle w

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5) HPCI Subsystem Auto Isolation Once/ operating cycle

6) ADS Subsystem (11)

Once/ operating cycle

7) RCIC Subsystem Auto Isolation Once/ operating cycle i

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8) Area Cooling for Safeguard System Once/ operating cycle E.

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9) Low-Low Set Function Once/ operating cycle A

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1 TABLE 4.2-0 1

i MINIMUM TEST AND CALIBRATION FREQUENCY FOR RADIATION MONITORING SYSTEMS 3

In strisnent 1

Functional Source Instrument Instrument Channels Test (9)

Calibration (9)

Check Check

1) Refuel Area Exhaust Monitors Once/3 months Once/ operating cyi.le Once/ month Once/ day

2) Reactor Building Area Exhaust Monitors Once/3 months Once/ operating cycle Once/ month Once/ day i

3) Offgas Post-treatment Radiation Monitors Once/3 months (10)

Once/ operating cycle Once/ month Once/ day

4) Offgas Pre-treatment Radiation Monitors once/3 months (10)

Once/ operating cycle Once/ month Once/ day 0$

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Simulated Automatic Isoiation Logic System Functional Test (6) and Logic Test Frequency (9)

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1) Reactor Building Isolation Once/ operating cycle p

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2) Standby Gas Treatment System Actuation Once/uperating cycle R

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3) Steam Jet Air Ejector Offgas Line Isolation Once/ operating cycle k

4)

Steam Jet Air Ejector Charcoal Bed Bypass Once/ operating cycle UT M

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DAEC-1 These instrument channels will be calibrated using simulated electrical s i gnal s.

4.

Deleted

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5.

Reactor low water level, high drywell pressure and high radiatior, main steam line tunnel are also included on Table 4.1-2, 6.

The logic systen functional tests shall include a calibration of time delay relays and timers necessary for proper functioning of the trip systems.

7.

These signals are not PCIS trip signals but isolate the Reactor Water Cleanup system only.

8.

This instrumentation is excepted from the functional test definition.

The functional test will consist of comparing the analog signal of the active thermocouple elenent feeding the isolation logic to a redundant thermocouple element.

9.

Functional tests and calibrations are not required on the part of the system that is not required to be operable or is tripped.

Functional tests shall be performed prior to returning the system to an operable status with a frequency not less than once per month. Calibrations shall be performed prior to returning the system to an operable status with a frequency not less than those defined in the applicable table.

However, if maintenance has been performed on those components, functional tests and calibration shall be performed prior to returning to service.

10.

The Instrument Functional Test shall a'so demonstrate that control room alarm annunciation occurs if any of the following conditions exist:

1.

Instrument indicates measured levels above the alarm / trip setpoint.

2.

Instrument indicates a downscale f ailure, t

3.

Instrument controls not set in operate mode.

11. A functional test shall be performed for the ADS manual inhibit switches as part of the ADS subsystem tests.

3.2-33 Amendment No. J09,JJ0,J28,Jf3,150 l

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