ML20063N256

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Loose Parts Monitoring Sys Test Procedure
ML20063N256
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 07/14/1982
From:
LONG ISLAND LIGHTING CO.
To:
Shared Package
ML20063N255 List:
References
814, NUDOCS 8209200134
Download: ML20063N256 (10)
v • d • e


Text

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Submitted: -

Approved:  ! ,0 f = '

(Plant Manager) , J p. 3, }

. s-ST7 Number 814 Revision: A Date Eff.:

TRN TRN TRN LOOSE PARTS MONITORING SYSTEM IEST PROCEDURE n =.-- = .--

1.0 PURPOSE 1.1 To verify the proper operation of the Loose Parts Monitoring System (LPMS) and to establish the base line data for later reference in the detection of loose parts.

2.0 DESCRIPTION

2.1 The LPMS response will be moniteced and recorded.

2.2 The information collected will be evaluated to ensure adequate instrument sensitivity and response.

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3.0 ACCEPTANCE CRITERIA _ ,

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3.1 The LPMS acesrately detects the simulated impacts.

3.2 The autoestic alsru and recording functions actuate when any of t'ne LPMS char.nele == M the desigasted set point. ,.

3 Allequipeantrequired'toaperateautoesticallyshalldehnstrate ,

di 4 capability to aset the requirements within the specified' time limits and

  1. , function adequately and contimuausly shroughout the test 6 l 4.0 ' CES a.

4.1 Shoreham FSAR 14.1.8.40 4.2 Specification SB1-461 and Ad/.1 4.3 TEC Assembly Drawings 11699 92-7.81-15A through 31A

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4.4 TEC PDD-TP-94 Rev. 9, Operational Performance Test Procedures, Model 1439-3 4.5 NRC Esgulatory Guide 1.133 4.6 TEC Doc. No. 39963-91, operations and Maintenance Manual 4.7 NRC Finding 82-92-96 5.0 PRECAUTIONS 5.1 Observe applicable radiological precautions t's ehture pertonhtI*ana~"

equipment protection.

5.2 Observe LILCO electrical safety precautions to avoid danger of electric shock.

5.3 Ensure adequate handling precautions are taken to prevent damage by static electricity to electrunic components or tracks on the printed circuit boards.

6.0 CENERAL PREREQUISITES 6.1 Acceptance tests are complete and approved as rcquired to successfully perform this test procedure.

Verified Date LPM system power is available and equipment is for 6.2 service.

Verified Date

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STP-814 Rev. A

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0 7.0 TEST EQUIPMENT ,

1 7.1 Standard blade screwdriver (3/16" blade) .

7.2 Digital voltmeter

  • i Type  ; Model  ; $/N  ; TEC Eq p ' t No. ,

', Spectrum Analyatt

., ,'*Type  ; Model  ; S/N i TEC Eqp't No.

8.0 PROCEDURE 8.1 System Background Test 8.1.1 Verify that all switches and controls are lined up in accordance with Attachment 1.

Verified Date b 8.1.2 Hessure and record the background ras voltage of each channel, (Table 1).

Verified Date 8.1.3 Record the base line spectra of each channel using a spectrum analyzer. Note the TEC 932 gain and filter settings and the LP 1 channel and sensor location (Table 1).

, ,. m -. c _._. Verified Date 8.2 I,nternal Sinulator and Tape Recorder Test 8.2.1 Verify all switches and controls are in the correct position in accordance with Attachment 2.

Verified Date 8.2.2 Depress the system reset switch and verify that all TEC 1432 status LEDs are green.

Verified Date 8.2.3 Depress the TEC 1439D Simulator impact switch and verify that all TEC 1432 status LEDs are constant red and that the tape recorder is in a forward / record mode.

Verified Date

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1 8.2.4 Alles the~ ~ r=ehr to' record for around 10 asseads.~ . h recording, the meter reses oatmately 45 dB on each channel.

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8.2.5 Emutad the tape recorder back to the point where 4* the footage oeunter again reads ~9999". Replay e t

the section jaat recorded while looking at each ~

chsenel's signal,'eus at a time, on the monitor '

4 a ester. (Slide aster selector evitch to point

. designated "Bec." for each channel). Verify

- that the recorder indeed recorded the signals

+ v from the TEC 1432 Simulator on all the channels.

Verified Date

! t,2.6 Verify the signals seen on the monitor meter are again about +5 dB on each channel.

Verified Date 8.3 Setting the Background and Threshold Value NOTE: See Section 3.1 of TEC Doc. No. 39963-91, if needed.

8.3.1 Record for each channel the background reading (V ras value) at each 1432 displayed on the TEC 142 Alert Set Point Monitor (Table 2).

Verified Date 8.3.2 Depress each 1432 monitor switch from the background position to the threshold position (Vth ras value); record the reading displayed on the TEC 142 Monitor (Table 2).

Verified Date 8.3.3 For each channel, coaute the K value.

Vth = K (Table 2) i V

I Verified Date NOTE: If the K value is less than 9.2, it may be impractical to operate at this setting. (See manufacturer's Manual for corrective action).

l f 8.3.4 Set the Alert Criterion for at least 3 alerts in l

r a 10 second period. If alarms occur without any noticeable impact noise on the audio monitor,

i. , double tte K value. Continue this procedure until no alarms occur. ,

, Verified Date STP-814 Rev. A

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8.3.5 Encord.the i value setting as necessary t@ the Start-up Phase (Table 3).

Verified Date

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ATTACHMENT 1 Initials

1. TEC 932 gain select switches - set to produce a " green" indication on the corresponding TEC 1432 st.atus LEDs.
2. ~' 932 low pass filter select switches - set at 59 kHz.
3. ,,,

i 1433C auto reset period select switch - set in the " enable" ition.

4. TEC 1433C deliberate plant maneuver detector (DPH) inhibit switch - set to " auto" position.
5. TEC 133C annunciator module alarm inhibit switch - set in the "off" position, i.e. , the inhibit LED should be of f.
6. TEC 1439D audio monitor simulator module volume control - set approximately at the nine o' clock position.
7. TEC 1439D channel select switch - set to Channel 1 position.
8. TEC 1439D simulator - simulator is disabled, i.e., the simulator status LED is of f.
9. TEC 146 tape recorder interface auto start select switch - set in the

" enable" position. . _ _ , _ , ,

10. TEC 146 tape speed select switch - set to 7.5 ips.

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1. ht the TEC 133C asmanciator sedule to the "on" position (inhibit j LED

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a 2.' 1 TEC 932 asylifier gain controls to a level to establis ~

," status indication 62ter enabling the TEC 1439D simulator.

! 3.' . W stora 4DS tape recorder taput attenuators to "1" on all snels. Set the response switch (below the monitor meter) to " peak".

Baset the tape recorder footage counter to read "9996".

4. Look at each channel's signal peak amplitude on the monitor meter.

Slide the switch labeled " mater" to the point designated " Rec." for l each channel.

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8.1 System Background East '

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Reactor Operating Conditions:

8.1 System Background Test

.(Step 8.1.3) (Spectrum Analyser)

LPM Channel Base Line Spectra 1.

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Cain Setting Filter Setting

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Sensor Location 1.

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STP-814 Rev. A

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TABLE 2 r,+.

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(Sec. 8.3) Settina the neckground and Threshold Values (Step 1.3.1)

Date l' 87 EMS *Value Time .

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(Step 8.3.2)

Channel *Vth EMS Value Time Date 1.

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(Step 8.3.3) (Compute K Value)

Channel V Vth *K Value Time Date 1.

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9 STP-814 Rev. A

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(Sec. 8.3) Setting the Sed _=round and Threshold Values (Step D.3.5, as needed)

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