ML20064A696

App I to PEI-TR-870200-01 Test Procedure for Steam Accident Test of Limitorque Control & Power Wiring & Okonite Tape Splices

ML20064A696
Person / Time
Site:	Cooper
Issue date:	12/02/1986
From:	Elam G NEBRASKA PUBLIC POWER DISTRICT
To:
Shared Package
ML20064A690	List: ML20064A689 ML20064A696 NLS9000363, PEI-TR-870200-02 Test Rept on Steam Accident Simulation of Limitorque Control & Power Wiring & Okonite Tape Splices
References
PEI-TR-8702-APP, NUDOCS 9009270089
Download: ML20064A696 (12)

Text

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APPENDIX I

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" Test Procedure for.

Steam Accident. Test of '

Limitorque Control and Power Wiring

. ' and Olsonite Tape Splices Report No. PEI-TR-870200-01'

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Prepared.for-NEBRASKA PUBLIC POWER DISTRICT.

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h 1 Tost Prcccdure No PEI-TR-870200-01 I Page No.,i l 7 TECHNICAL-DOCUMENT t.

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. DOCUMENT TYPE -Test Procedure (REPORT / PLAN / PROCEDURE)-

DOCUMENT No.: PEI-TR-870200-01 December 2, '.986 ORIGINAL ISSUE DATE:

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TITLE: Test Procedure for Steam Accident-Test of Limitorque Control and Power Wiring and [

Okonite Tape Splices

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'i9~ < s. PREPARATION PROJECT ENGINEER: Gh*\ - -

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TECHNICAL' REVIEWS ,

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PROGRAM MANAGER: / [ /

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i APPROVAL

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' GROUP / DIVISION DIRECTOR:

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Johnny F. Jenkins 'Y ~

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PEI Form No. 611 - Rev. 2/1984 .

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N Tes t . Pescedure ? N3. - PEI-TR-870200-01 G ": ,

.tage 50. 11 )

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. TABLE OF CONTENTS

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1.0 SCOPE. ..............................

i 1.1: Test Assembly Description . . ...............

1'  ;

1  ;

11.2 Test Sequence . . . . . . . . . . . . . . . . . . . . . . .

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2.0' TEST-REQUIREMENTS. .......................

2.11 Instrumentation . . . . . . . . . . . . . . . . . . . . . . 1 2

2.1.1 Calibration . . . . . . . . . . . . . . . . . . . .

2 2.2--Acceptance Criterie . . . . . . . . . . . . . . . . . . . . ,

/1 f.!I 2 3.0 TEST FROCEDURES. ... . . . . . . . . . . . . . . . . . . . . . . .

T- '

% L3.1' Functional Tests. . . .. . .=. . ... . . . . . . . . . . . .

2

I 1.1 .V is ual - Ins pe c t ion . . . . . . . . - . . . . . . . . .-

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.1.2- Insulation Resistance (IR). . . . . . . . . . . . 2 2-.

4 4 3.1.3 -Continuity Yorification . . . . . . . . . . .-. .

3  ;

(") 3.2' Stean-Accident Test . . . . . . . . . . . .-.. . . . . . . .

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- 3. 3 . Fun c t iona l Te s t s . -. . . . . . . . . . . . . . . . . . . . . . 3

+ -3.4 Notice'of. Anomaly . . . . . . . . . . . ... . .=. . . . . . 3 3

33.5;- Reports . . . . .... . . . . . . . . . . . . . . . . . . . .

LN LIST OF FIGURES

' Tes't A'ssembly Configuration. . . . . . . . - . . . . .. 4 Figure.l.

. Accident. Test Configuration. . . . . . . . . . . . . . . 5.

~ Figure-2..

g Figure 3. Accident Test Profile. . . . . . . ..... . ,. . . . . 6-m y

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Test' Proccdtare Ns. //t!-TR-870200-01 Page r;.=_1 1

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1.0 SCOPE-1 This test procedure was prepared for the Cooper Nuclear Station (CNS) -for. the steam accident testing ~of Limitorque control and power-wiring and Okonite tape splices.

1.1 Test Assembly Description The test ' assembly shall consist of two cable / splice circuit loops  :

inside a NEMA-4 enclosure. The test specimens shall be assembled and provided by the CNS plant staff except that Patel shall install the wiring into the NEMA-4 enclosure. The enclosure shall not have a drilled " weep hole. The test assembly shall be fabricated per Figure 1. The enclosure simulates the Limitorque

' housings at CNS.

The 2' circuit loops shall be labeled loop 1 and loop 2. Loop 1 ,'

shall contain 2 se gments (F and G) of Limitorque torque switch

• tD wire-(black braid) that were naturally ~ aged in service at CNS.. ,

' Segments F and' G were inetailed for 12 years in the CNS steesi.

q in- valve MS-M0-M077 and MS-MO-M078, 1monel operators re spctively. Valve -operators MS-MO-M077 and MS-M0-M078 are.

o located in high radiation and elevated ambient temperature.

O environments. Zoop 2 shall contain 2 segments (5 and C) of Limitorque motor lead wire (yellow braid) that were naturally aged in service at CNS. Segments-B and C were installed for 12 -

' years in the CNS steam tunnel in valve operator MS-MO-M077.

Circuit Loops -1 and 2 each contain three bolted okonite T35/T95

".. . tape splices. The lead wires for loops 1 and' 2 shall be Rockbestos Firewall SIS 16 AWG 600V Nuclear Cable. . The splices "

- - were assembled by CNS personnel in accordance with CNS procedure

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j .1,. 2 Test Sequence C. Testing shall be. performed as follows:

o Functional Tests o Steam Accident Test o Functional Tests 2.0 - TEST REQUIREMENTS

- 2.1 Instrumentation

- All test equipment to be used in the performance of this program shall be' calibrated in accordance with applicable portions of ANSI N45.2, and ' 10CFR50/ Appendix B. Standards used in performing

• all calibrations shall be traceable to the National bureau of

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IJ - Tast Pracadure Nr. PEI-TR-870200 Page No.'2 .

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. g 12.1.1 Calibration Test equipment _ serial numbers , calibration dates , .and accuracies shall be annotated and verified on the data sheets prior to test

initiation. >

-2.2- Acceptance- Criteria c

';,1 The individual leakage current readings during the accident -l y simulation . shall not exceed _30 milliamps- for loop 1 and 300- $

milliasps for loop 2.

.3.0- TEST PROCEDURES The test specimens shall be subjected to the tests as described Em in the test sequence in Paragraph 1.2. The tests are described below.-

N -3.1 Functional-Tests p.j >

3.1.1 Steusl Insoection O _

A ' visual inspection shall be performed. This -inspection will' '

k assure that the: equipment has not received' any_ obvious visible

-damage during shipping- and handling. Equipment identification L . [J e

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will also be verified.

i 3.1.2 Insulation Resistance (IR) y ~

The insulation resistance of the test specimens shall be measured f at 500 VDC for 1 minute and shall be recorded. The following IR y- measurements-shall be taken.

OO Loop 1 to Ground lL

' Loop 2 to Ground 3.1.3 Continuity Verification Circuit continuity shall be verified by measuring and recording

' the circuit resistance of loop 1 and loop 2.

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' It 23.2. Steam Accident' Test -

The test assembly shall be installed in the test chamber with 'the L c'onduit ' opening oriented downwa rd . - The enclosure door shall be clasped' shut using the enclosure sounted hardware. The test specimens shall- be _' electrically energized as shown in Figure ,2. -

With the test assembly- energized, the test assembly shall be

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subjected = to the following steam profile (see Figure 3):

b 150 to 300'F in 30 seconds E 300'F/15 pais minimum for 1 minute (not including ramp) 250'F/10 psig minimum for~ 29 minutes ,

230'F/5 pois, miniava for 99.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />

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.During the accident test, leakage current shall_ be recorded on a detalogger- every 10 seconde for the first 5' minutes, every minute - J '

for the next 30 minutes and .every 20 minutes thereafter. The leakage .cerrent monitoring loop shall be capable of asasuring i i l

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ailliasp.. IR measurements shall be taken _once during- the first' i

'y 30' minutes and at approximately 2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br />, 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br />, 8 houre and W ry 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> thereafter.  !

O t' Chamber temperature shall be ' recorded using at least 2 thermo '

LO,, couples 'that, are connected-.to a datalogger or strip recorder. [

The thermocouples shall be located within 2. inches of the test assembly. Pressure shall be measured by using pressure trans- l ducers of 3% or better accuracy. .;

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'N 3.3 Functional Teses L;

. Subsequent to the steam accidant test, the chamber shall be

' opene d - . and ,the - test asstably allowed to cool' to ambient .

l1 ~ conditions. The test' assembly . shall not ;be removed 'from the 'I L. i

[F chamber or handled be fore the: functional test. The functional-h tests described in Paragraph 3.1 shall be repeated, op

'3.4 . Notices of Anomaly Patel Engineers _shall be notified within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> of the encountered during performance of occurrence of anomalies testing. - After verbal notice, a written account of 'the anomaly

, and its disposition shall be forwarded to Patel.~ f n .

3.5- Reports ,

lir The report shall de scribe the requirements, procedures, and q results for this cast program.

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FIGURE 2 k' ACCIDENT TEST CONFIGURATION 4

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ACCIDENT TEST PROFILE

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d g APPENDIX III .

Post Accident Visual Inspection, 12/16/86 8

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Contact Report oft p Follow-Up Datet' 12/16/86

Dste of Contact c..scy(Or .CCL C=p:ny 0 P.-0. Box 30096.

Addrsss-Raleigh, North Carolina 27622 I -

l- Phtno Peta-Rutten. Technician horson(s) Don Hatmaker, Test Engineer Contacted and Title' Limitorque Wire Post Accident Inspection hrme .

Discussion 1. Reviewed test data and ROAs - oraliminary conien nrovided.

2. Re-check IR with same results as post accidente annroximately 600 Kohmm. 'I

3. No damage =of conduit seal penetratica.

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In = 4. IR taken uoon removal f rom chamber 4-600 Kohan.

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5. "C" cable appears to have some dearee of damane (fraving) where it is

-9 I touching lef t' side of junction box.

g 6.' Water standing in bottom of junction box - surf ace layer, ,

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(- 7. 71ood level not visually discernable. 'Pete's evaluation of data and other' observations have convinced him that water level was above thermocouples

-which is higher.than test specimen, 1.e., specimen was completely submerged.

' ' 8. ' C cable was separated from side of junction ~ box - no change in IR. ~!

'! When cable was- pressed against junction box,'IR went to 0 - dead short. .

i A -9. B cable /end splice-had similar damage appearance as C cable, but not as.

gl extensive. -

10.-When Soecimens "B" and "C" were both seoarated from the enclosure-walls.

the IR increased to 40 Mohma.

i Action Ite:::

1 Co\-pSes To PEI-TR-870200-02, Bob Minadeo, Gary Elam 4

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~PEI Form No.,625 - 6/ d2?

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