Text

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)
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APPENDIX I

Test Procedure ' for - Steam Accident-Test of Limitorque ' Control and Power. Wiring and Okonite Tape Splices n

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December 2, -1986

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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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P. O. No. 263120 PEI J/N 8702 i

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Tost Prcccdure No PEI-TR-870200-01 I

Page No.,i TECHNICAL-DOCUMENT 7t.

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-Test Procedure (REPORT / PLAN / PROCEDURE)-

PEI-TR-870200-01 DOCUMENT No.:

ORIGINAL ISSUE DATE:

December 2, '.986 I

Test Procedure for Steam Accident-Test of

TITLE:

Limitorque Control and Power Wiring and

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PROJECT ENGINEER:

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PROGRAM MANAGER:

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

1' i

1.1: Test Assembly Description..

1 11.2 Test Sequence.......................

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

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

2 2.1.1 Calibration....................

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

f.!I 2

/13.0 TEST FROCEDURES..........................

T-L3.1' Functional Tests.

..=.................

2

I 1.1

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

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

2 4

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3.1.3

-Continuity Yorification...........-..

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3.2' Stean-Accident Test............-.........

-3

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

3 3

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

3 33.5;- Reports............................

LN LIST OF FIGURES 4

Figure.l.

' Tes't A'ssembly Configuration........ -....

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. Accident. Test Configuration......

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Accident Test Profile.............

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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.

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1monel in-valve operators MS-M0-M077 and MS-MO-M078, 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 7.3.26.

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.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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. 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 simulation. shall not exceed _30 milliamps-for loop 1 and 300-y 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

will' A ' visual inspection shall be performed.

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

-damage during shipping-and handling.

Equipment identification L. [J e will also be verified.

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i 3.1.2 Insulation Resistance (IR) y The insulation resistance of the test specimens shall be measured

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f at 500 VDC for 1 minute and shall be recorded. The following IR measurements-shall be taken.

y-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 300'F/15 pais minimum for 1 minute (not including ramp)

E 250'F/10 psig minimum for~ 29 minutes

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

.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

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

i 30' minutes and at approximately 2 hours2.314815e-5 days 5.555556e-4 hours 3.306878e-6 weeks 7.61e-7 months , 4 hours4.62963e-5 days 0.00111 hours 6.613757e-6 weeks 1.522e-6 months , 8 houre and

'y W ry 24 hours2.777778e-4 days 0.00667 hours 3.968254e-5 weeks 9.132e-6 months thereafter.

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Chamber temperature shall be ' recorded using at least 2 thermo '

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

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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.

K'N 3.3 Functional Teses L;

. Subsequent to the steam accidant test, the chamber shall be l1 ~

' opene d -. and

,the - test asstably allowed to cool' to ambient L.

conditions. The test' assembly. shall not ;be removed 'from the

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[F chamber or handled be fore the: functional test. The functional-i 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 0.00667 hours 3.968254e-5 weeks 9.132e-6 months of the occurrence of anomalies encountered during performance of testing. - After verbal notice, a written account of 'the anomaly and its disposition shall be forwarded to Patel.~

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3.5-Reports lir The report shall de scribe the requirements, procedures, and q

results for this cast program.

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ACCIDENT TEST PROFILE

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APPENDIX III Post Accident Visual Inspection, 12/16/86 8

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' J hnny F. Jankins-b Tolophenot Visitt Contact Report oft p

12/16/86 Follow-Up Datet'

Dste of Contact c..scy(Or

.CCL P.-0. Box 30096.

C=p:ny 0 Raleigh, North Carolina 27622 Addrsss-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.

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

3. No damage =of conduit seal penetratica.

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

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-9 touching lef t' side of junction box.

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

7. 71ood level not visually discernable. 'Pete's evaluation of data and other'

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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.

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

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

A extensive.

gl 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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ML20064A696

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