ML20032A858
| ML20032A858 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 05/24/1973 |
| From: | Korner R WESTINGHOUSE ELECTRIC COMPANY, DIV OF CBS CORP. |
| To: | |
| Shared Package | |
| ML20032A854 | List: |
| References | |
| IEB-79-01B, IEB-79-1B, PEN-RLK-5-24-73, TEST-730524, NUDOCS 8111020477 | |
| Download: ML20032A858 (4) | |
Text
{{#Wiki_filter:' k. \\ s/ (~ Stingh0000 E10Ctf!C COTp0 Tall 0D InduSITY & DefanSe b srmxms EE!:cu Tcllr.is.:a B32M Ernita Nr.v m 14932 (60h 7337951 May 24, 1973 PEN-RLK-5-24-73 ACCIDENT ENVIRONMENT TEST REPORT Test Completed 3/24/73 e* The purpose of this test is to ensure that the design submitted is capable 'of maintaining seal integrity and electrical insulation quality af ter being subjected to " accident" ambient condi tions for t,cmperature and pressure as required by lEEE Standard #317 Penetration under test: The penetration tested is a prototype which represents the class "F" penetration for the Brunswick Plant whose cabics are utilized for control rod drive mechanism indication and consist of (27) #16 AVG copper conductors and a thermo-couple pair consisting of alumel and chromel (#18 AWG). The prototype contained conductors equivalent to 10 cables (actually 304 conductors). This is 1/3 the amount normally used but is sufficient to claim equivalency. Only the pressure barrier end of the penetration was constructed since this is the only end that fees the DBE conditions.
== Conclusion:== The prototype penetration, built to represent the class "F" penetration satisfactorily passed the accident environment test. 1. The pressure boundary remained leak tight as defined by the, specification for the conditions of the test. ~ F. ).-9527 30246 ~ n u en g s aan a:. .... y. q m
PEN-RLK-5-24-73 + (' 2. All values of insulation resistance were well above 1010 ohms af ter the test. 3. The. assembly passed the high pot test at 1 KV R.H.S. __oce' dure: Pr The pressure boundary portion of the penetration was assembled (shown in Fig. 1) and helium mass spectrometer leak checked. The assembly was leak tight. It was next placed on the steam test chamber shown in Fig. 2. The temperature was recorded and filed in $E figuring book #144753. Fig. 3 is a condensed temperat'ure profile transcribed from,he chart to c..ich it was subjected. Af ter completion of steam testing. the assembly was again leak checked. The insulation 'resistr..ce values for a representative number of conductors was then obtained. High pot testing followed. List of ecuinment used: L. & N. Speedomax Recorder - 6 pt temperature. Steam gage - Pressure 150 PSIG General Radio Megohmmeter set at 500 VDC Veece Leak Detector Model MS-90. Results of Test: The conditions of the test have been transcribed from the actual chart. Fig. 3 shows the measured temperatures as time progressed. The decay in temperature which occurs after the six hour hold at 340 F was accomplisheo in two steps so as to approximate the SPeci fied temperature decay. On completion of the steam test, the prototype penetration was placedontheheliummassspecgrometerleakdetector. A very small leak, estimated at 3x10~ std. cc per sec. was detected. Although this exceeds the de' sign, requirement of lx10-6, the difference is not significant in consideration of the accuracy of measurement. Next the prototype penetration was subjected to insulation resistance testing. Fifty leads were selected at random with each lead tested to ground and then to all other leads. o g e se - p e o e e 'f
.1 s PEN-RLK-5-24-73 Resistance measurement .sre as follows: Lead # Lead # Lead # 1 3x1010 21 5x1010 41 4x1010 2 20x1010 22 5x1010 42 3x1010 3 20x1010 23 1x1010 43 4x1010 10 4 7x10 24 7x1010 44 3xio10 l0 5 10x10 25, 8x1010 45 8x1010 6 3.5x1010 26 7x1010 46 5'x1010 I0 10 7 3x10 27 1x10IO 47 7x10 l0 12 5x1010 48 ' 7x10 IO 8 5x10 IO 9 4x1010 29 3x1010 5,9 5x10 10 5x1010 30 3xio10 50 5x1010 11 7x1010 31 5x1010 12 5x1010 32 2x1010 13 4x1010 33 4x1010 14 4x10 u 34 5x1010 1 l0 15 5x1010 35 5x10 16 4x1010 36 4x1010 '17 5x1010 37 4x10l0 18 3x1010 38 3x1010 19 3x1010 39 3x1010 20 4x1010 '40 7x1010 All above readings in ohms and were taken at 500 v.D.C. High Potting was peri,rmed in a s'imilar manner at 100 V-RMS. All leads were found satisfactory. .f ~ I Test Report prepared'Isy L. Korner l MA_- C h__ I Sworn to before me this I M ' day May 1973. MOTAaY PU3Ltc. STAf t us.48 W Toad NtC a h J'l ' .Y d4 0 wu... .s -e I azd. APP 3a%Itle eh $I;Ussh COUNIT - f \\. \\ l l (u) e** g
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