ML20077G351

Proposed,Revised Tech Spec Table 4.2-1 Re Instrument Functional Test & Calibr Requirements for Analog Trip Units

ML20077G351
Person / Time
Site:	Quad Cities
Issue date:	06/13/1991
From:	COMMONWEALTH EDISON CO.
To:
Shared Package
ML20077G346	List: ML20077G343 ML20077G351
References
NUDOCS 9106270112
Download: ML20077G351 (6)

Text

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Attachment 3 Revised Technical Specification Pagos OP&29 Pago 3.2/4.2 28 3.2/4.2 29 DPlh30 Page 3.2/4.217 l

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l 9106270112 910613 PIIR ADOCK 05000254 P PDR l ZNLD/863/18

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. QUAD-CITIES OPR-29 TABLE 4.2-1 (Cont'd)

Instrument Instrument functional Instrument Channel Test [2] Calibration I23 Check [2]

RCIC Isolation

1. Steamline high flow Once/3 months [9] Once/3 months [9] None

2. Turbine area high temperature Refueling outage Refueling outage None

3. Low reactor pressure Once/o .aonths Once/3 months None HPCI Isolatio'n 7'

1. Steamline high flow (1) [9 [Nl03) Once73 monthe None

2. Stean.line area high Refueling ou age Refueling outage None temperature-Low reactor pressure gh

3. [1] Oiw irenths None Reactor Building Ventilation System Isolation and Standby Gas Treatment System Initiation

1. Refueling floor radiation (1) Once/3 months Once/ day monitors Steam Jet Air Ejector Off-Gas Isolation

1. Off gas radiation monitors [1] [4] Refueling outage Once/ day .

Control Room Ventilation System Isolation

1. Reactor low water level J1] Once/3 months Once/ day .

2. Drywell high pressure ;1) Once/3 months None

3. Main steamline high flow [1] Once/3 months Once/ day ,

4. Toxic gas analyzers Once/ month Once/18 months Once/ day (chlorine, ammonia, sulphur dioxide)

Notes

[1] Initiallyongepermonthuntilexposurehours(MasdefinedonFigure4.1-1) l are 2.0 X 10 ; thereafter, according to Figure 4.1-1 with an interval not

. less than 1 month nor more than 3 months. The compilation of instrument f ailure rate data may include data obtained from other boiling water reactors for which the same design instrument operates in an environment similar to that of Quad Cities Units 1 and 2.

[2] Functional tests, calibrations, and instrument checks are not required when these instruments are not required to be operable or tripped.

3,2/4.2-28 AmendmentNo.fi[

QUAD-CfTIES OPR-29 M

TABLE 4.2-1 (Cont'd)

(3) This instrumentation is excepted from the functional test definition. The function test shall consist of injecting a simulated electric signal into the measurement channel.

[4] This instrument channel is excepted from the functional test definitions and shall be calibrated using sta1ulated electrical signals once every 3 months.

[5] Functional tests shalt be performed before each startup with a required frequency not to exceed once per week. Calibrations shall be performed during each startup or during controlled shutdowns with a required frequency not to exceed once per week.

(6) The positioning mechanism shall be calibrated every refueling outage.

[7] Logic system functional tests are performed as specified in the applicable section for these systems.

(8) Functional tests shall include verification of operation of the degraded voltage 5 minute timer and 7 second inherent timer.

(9) Verification of the time delay setting of 31 t i 9 seconds shall be -

performed during each refueling outage.

(10) Trip units are functionally tested monthly. A calibration l

of the trip unit is to be performed concurrent with functional testing. Transmitters are calibrated once per operating cycle.

3.2/4.2-29 Anendnent No.

QUAD CITit5 DPR-30 TABLE 4.2-1 (Cont'd)

Instrument Instrument Instr nt functggal CAlRI Ality 2) g1gg (bJnnel InL HPCI ! solation

1. Steamline high flow (1) (9) (10) (9) (10) Nord l

2. Steamline ares high temperature refueling outage Refueling outage Nane

3. tow reactor pressure (1) (10) (10) None l Reactor Butiding ventilation System Isolation and Standby Treatment System Initiation

1. Refueling floor radiation (1) Once/3 months Once/ day monttors Steam Jet Air Ejector Of f-Gas isolation

1. Off-gas radiation monitors (1) (4) Refueling outage Once/ day Control Room ventilation System Isolation

1. Reactor low water level (l) Once/3 nonths Once/ day

2. Drywell high pressure (1) Once/3 months None

3. Main steamline high flow (1) Once/3 months Once/ day

4. Tonic gas analyzers (chlorine. Once/ Month Once/18 months Once/ Gay ammonia, sulphur dioxide)

EQ1t1

1. Initially onge per month until exposure hours (H as defined on Figure 4.1-1) ,

are 2.0 X 10 ; thereafter, according to Figure 4.1-1 with an interval not itss than 1 month nor more than 3 months. The Compilation of instrument f atlure rate data uay include data obtained f rom other boiling water reactors f or which the same design instrument operates in an environment

$1mtlar to that of Quad Ctttes Units I and 2.

2. Functional tests, calibrations, and instrument checks are not reautred when these instruments are not required to ba operable or tripped.

3. This instrumentation is excepted from the functional test definition. The function test shall constst of injecting a simulated electric signal into the measurement channel.

4. This instrument channel is excepted f rom the functional test definitions and shall be calibrated using simulated electrical signals once every 3 months.

5. Functional tests shall be performed before each startup with a required frequency not to exceed once per week. Calibrations shall be performed during each startup or during controlled shutdowns with a reQutred f requency not to exceed once per week.

6. The positioning mechanism shall be Calibrated every refueling outage.

7. Logic system functional tests are perf ormed as specified in the applicable section for these systems.

8. Functional tests shall include verification of operetton of the degraded voltage, 5 minute timer and 7 secona innerent timer.

9. Verification of the time delay setting of 3 1 t i 10 seconds shall be perf ormed during each refueling outage.

(1

10. Trip units are functionally tested monthly. A calibration of the trip unit is to be perf ormed concurrent with the f unctional testing. Transmitters are calibrated once per operating cycle.

0515J 3.2/4.2-17 Amendment ho.

9 Attachment 4 Evaluation of No Significant flazards Consideration I

As described in the Safety Evaluation for the Amendment Request, the proposed amendnient returns the information which was previously approved and inadvertently omiPed in subsequent amendments to Table 4.2-1.

C. i . Mnwealth Edison hLs revie*ved the proposeo amondment in accordance with the criteria delineated in 10 C"-R 50.02 and has conemded that the proposed amendment does not present a Sigallicen: Hazards Consideration The bacis for this determination is as follows:

1. The proposed change does not irtvolve a signVicant i.v:roase in the probability or consequeix:es of an accident.

I i

The proposed amendment to Table 4.21,

• Minimum Test and Calibration  ;

Frequency for Core and Containment Cooling Systems instrumcatation, Rod .

Blocks and Isolations", has been previously evaluated by Commonwealth Edison l and the Commission and it was determined that this change does not involve a significant increase in the probability or consequence of an accident. This proposed amendment corrects Table 4.2-1 to inclr le that Information which was previously approved, however, was inadvertently removed in a subsequent revision to the Table. As a result, this proposed amendment is an administrative change and does not involve any accic ent initiators.

I

2. The proposed change does not create the possibility of a new or detterent kind of accedent from any accident previously evaluated.

i The pro 30 sed amendment to Table 4.2-1 has been areviously evaluated by

Commonwea th Edison and the Commission, and it was cletermined that this change does not create the possibility of a new or different kind of accident from any accident areviously evaluatecl. This proposed amendment corrects Table 4.2-1 to include that nformation which was previously approved, however, was inadvertently removed in a subsequent revision to the Table. As a result, this proposed amendment is an administrative change and does not involve any new operation of the plant.

L ZNLD/863/19

Attachment 4 (Continued)

3. The proposed chango does not involvo a significant reduction in the margin of safety.

The proaosed amendment to Table 4.2-1 has been previously determined by Commonwea th Edison and the Commission not to involve a significant reduction in the margin of safety. The aroposed amendment corrects the information on Table 4.2-1 to include information wh ch was previously approved, however, inadvertently omitted in subsequent amendments to Table 4.2-1. The proposed amendment is administrative in nature and does not affect the margin of safety.

.ZNLD/863/20

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