ML20052B224

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Rept of Test on Seismic Vibration of Electro P/N 10LB2212C8 for Electro Switch Corp
ML20052B224
Person / Time
Site: Grand Gulf  
Issue date: 11/14/1975
From: Gilfoy R, Martini K, Tolf M
ENVIRONMENTAL TESTING CORP.
To:
Shared Package
ML20052B163 List:
References
11944-B, NUDOCS 8204300184
Download: ML20052B224 (9)


Text

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Il944-B No of Pogm 32 Test Report No.

Report of Test on SEISMIC VIBRATI0ff 0F ELECTRO..P/ti 10L82212C8 for ELECTRO SWITCH CORPORATI0tl under PURCHASE ORDER t10. 71400

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Administrative Data LO Purocie of Test:

Qualification seismic vitration of the Electro Switch Corporation electro switch specified below.

2.0 Manufac tuten Electro Switch' Corporation d

t 3.0 Manufacturer's Tvee or Model.No:

Electro P/N 10LB2212C8

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Series 10L, 12 decks, 18 oz.

4.0 Draw.inc. Secc.ficat. ion or Exhibit: The Electro Switch Corporation i

letter, dated September 8, 1975 to Acton Environmer. 31 Testing Corporation (AETC) from Mr.

J.R.Qualey.

5.0 Quentity of items Tested:

0.ne (1) electro switch 60 security cinutriention of items.

Hone 7.0 Date Test cc-oleted?

October 29, 19f5 B.0 Test Conducted By.

R. Gi l f oy/ C. Pi l o t te/ D. McL a ughl i n 9.0 Discosition of Seeim*"

l Returned to Electro Switch Corporation l

10.0 Abstracte There was no evidence of mechanical damage or deterioration to the Electro Switch Cer,.

electro switch as a result of the seisrJe vibration test specified in para. 2.0 below.

Refer to para. 3,0 for specific test results.

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l 11944-B Report No, p,

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ENVIRONMENTAL l

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COAPORATION 4

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1.0 TEST REQUIREMENTS The Electro Switch Corporation electro switch is re-quired to pass the seismic' vibration test specified in paragraph 2.0 b.elow, without evidence of mechanical damage or deterioration.

2.0 TEST PROCEDURES The electro switch was secured to a test fixture by its normal mounting means and the test fixture was secure'ly bolted to the 45' biaxial moving table, with a biaxial seismic simulator, of the Acton Environmental Testing Corporation (AETC) seismic test facilities for seismic vibration testing in the first front-to-back biaxial direction.

Switch contacts were monitored for momentary openings and closures throughout the subsequent seismic vibration test with the AETC/ Matrix Cha tter Box calibrated for 10 micro-seconds.

The closed circuits of the switches have been wired in series and the open circuits have been wired in parallel for monitoring switch circuit change during test.

The 28 -VDC panel indicator lights of the switch. shall be energized with rated voltage and observed for failure during test.

Two monitoring accelerometers and one control accelero-

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meter were placed on the test item / test fixture in the following locations:

ACCELEROMETER NO.

LOCATION 5&6 In a biaxial group at the rear'of the switch ' #5 vertical; #6 in the horizontal direction of excitation 12

' Control at the base of the unit l

Report No.

R h-ENVIRONMENTA I

ACTON l

2 Page ConPORAT)ON

The following resonance survey was performed first in the first front-to-back biaxial direction:

0.5 to 35 liz, 0.28g's resultant, 1 octave / minute sweep Following completion of the resonance survey in the first front-to-back biaxial direction, the unit was rotated 180* to the second front-to-back biaxial direction, and the above specified resonance survey was performed.

Following completion of the resonance survey in the second f ront-to-back" biaxial direction, the unit was rotated 90* to the first side-to-side biaxial direction, and the above specified resonance survey was performed.

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Following completion of the resonance survey in the first side-to-side biaxial direction, the unit was rotated 180' to the second side-to-side biaxial direction, and the above specified resonance survey was performed.

The AETC Seismic Simulator was then setup for biaxial seismic vibration with a random input.

The equivalent random vibration level of the Electro Switch Corporation Specification Required Response Spectrum was computed.

With the test item setup in the first front-to-back bi-axial direction, five 1/2 SSE, 30-second random vibration exposures were performed.

Test Response. Spectra at a Q of 20 were computed employ-ing a Spectral Dynamic SD331 Shock Spectrum Analyzer fast fourier transform program.

The spectra were compared to the Required Response Spectrum.

X-Y Plots of the TRS made with the SD331 are included with this report.

Af ter performing five 1/2 SSE random vibration inputs in the first front-to-back biaxial direction, the test item was rotated 180' and the test was repeated in the second front-to-back biaxial direction.

Again five 1/2 SSE 30-second random vibration exposures were performed.

II944-0 Reput No.

ENV1HONMENTA1.

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F Following completion of the five 1/2 SSE in the second front-to-back biaxial direction, the test item was rotated 90* to the.first side-to-side biaxial direction and five 1/2 SSE 30 seconds random vibration exposures were performed.

Following completion of the five 1/2 SSE in the first side-to-side blaxial direction, the test item was ro-tated 180' to the second side-to-side biaxial direction and five 1/2 SSE 30-second random vibration exposures were perfo'rmed in the second side-to-side biaxial -

direction.

The test item / test fixture assembly was then rotated 90* to the first front-to-back biaxial direction and one full SSE 30-second random vibration exposure was perforced.

Following comple' tion of the one full SSE in the first front-to-back biaxial direction, the test item was rotated 180* to the second front-to-back axis and a full SSE 30 seconds random vibration exposure was performed.

The test item was then rotated 90* to the first side-to-side axis and a full SSE 30 seconds random vibration exposure was performed.

The test item was then rotated'180' to the second side-to-side axis and the full SSE 30 seconds random vibra-tion exposure was performed.

This completed the testing of the. electro switch.

During all the tests, outputs of all three accelero-meters were displayed on oscillographic recorders.

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Report No.

Il944-B_

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CORPORAT10N 4

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3.0 TEST RESULTS 4

No resonances of the electro switch were detected in the resonance survey in either the front-to-back biaxial direction or the side-to-side biaxial direction.

No damage or deterioration occurred to the Electro Switch equipment as a result of resonance survey.

There was no evidence of mechanical damage or deteriora-tion to the Electro Switch equipment as a result of the 1/2 SSE in any of the four biaxial directions.

No damage or deteri6' ration ' occurred to the Electro Switch equipment as a result' of the full SSE in any of the four biaxial directions.

No contact chatter occurred throughout the seismic vibra-tion testing.

11944-B Report No.

ENVRONMunA1.

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TEST EQUIPMENT LIST-NAME HFGR.

H0 DEL SER.HO.

RAN ACCURACY

-,.........................................................GE...............................INV.i CAL.FREQ.

Accelerometer PCB 302A 666 0.25 Hz - 5 KHz 15%

AC375 3 months 667 AC376 "

  • 668 AC377 "

669 AC378 "

670 AC379 "

671 AC380 "

672 AC381 "

673 i"

AC382 "

565

  • AC383 "

L 694 AC384 697 AC387 "

10 Hz-l HHz, 0-300 volts VTVH HP 403A 12 ranges 13%

MV322 "

Sweep Oscillator SDY SD-104-5 21A 0.005 Hz - 50 KHz 11 %

SG315 6 months Random Noise Generator GR 1381 927 2 Hz - 50 KHz 11 db SG337 "

Hydraulic DC-300 Hz, 25K force lbs

+2%F Actuator HTS 204.63S 25" DA max 15%A PE367 3 months

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Controller HTS 443.115 DC-2000 Hz 11%

,PE367 "

Charge Amplifier UD OllHGSV 910 1-1000G 2 Hz.20 KHz 12%

PE361 "

Chatter Monitor Matrix 2020 310 10 & 100- usec 12%

PE370 6 months False Contact Monitor Matrix 202D 310 10 & 100 usec 12%

PE371 6 months Power Unit Output-22 VDC 12 MA(used Conditioner PC8 483A 273 w/302A Accelerometers)

N/A PE374 3 months a

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TEST EQUIPMENT LIST NAME HFGR.

MODEL SER.NO.

RANGE ACCURACY INV.f CAL.FREQ.

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Eloctronic Filter (dual)

SKL 302 498 20 Hz - 200 KHz 15%

AH328 6 months Power Supply BUBR 506/16 322 115 VDC, 1 ADC 0.5%

PD372 "

Visicorder Honeywell 906 9-5235 DC - 2 KHz 12 channel il DB RE332 3 months Recorder 906C 99078 DC - 2 KHz 12 channel il db RE335 "

X-Y Plotter MFE 715 42167 RENTAL in use X-Y Display Spec.Dyn 13116-2A 327 Display Indicator in use Shock Analyzer 13231 17

.1 Hz - 10 KHz O

in use Transient Hemory 13192 18 Storage in use s.

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A.E.T.C. TESI REPORT NO. 11944-B PAGES 8 THROUGH 32 SEE A.E.T.C. REPORT'NO. Il944-A 4

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