ML20052B230

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Rept of Test on Seismic Vibration of Electro P/N 20KB2210C8 for Electro Switch Corp.
ML20052B230
Person / Time
Site: Grand Gulf  Entergy icon.png
Issue date: 11/14/1975
From: Gilfoy R, Martini K, Tolf M
ENVIRONMENTAL TESTING CORP.
To:
Shared Package
ML20052B163 List:
References
11944-D, NUDOCS 8204300193
Download: ML20052B230 (9)
v • d • e


Text

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Test Report No. 11944-D No. of Pogos u Report of Test on SEISMIC VIBRATION OF ELECTRO

P/N 20.KB 2210C8 for ELECTRO SWITCH CORPORATION

. under PURCHASE ORDER NO. 71400 t

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CORPORATION November 14, 1975 Dora Prepared Checked Approved BY K. Martini R.Gilfoy M.L.Tolf 9"*

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Administrative Data 1.0 Purcose of Test: Qualification seismic vibration of the Electro-Switch Corporation electro switch specified below.

2.0 Manufac turer:

Electro Switch Corporation 3.0 Manufceturer's Tyne er Model No: Electro P/li 20KB2210C8 Series 20K,10 decks ,15 oz.

4_0 Drew.ing. Spec.ficotien er Exhibit: The Electro Switch Corporation i

letter, dated September 8, 1975 to Acton Environmental Testing Corporation (AETC) from tir.

J.R.Qualey.

5.0 Quantity of items Tested:

One (1) electro switch 6_0 heuriev c!nuiftention nf Item" flone 7.0 Date Test Comoleted: October 29, 1975 8.0 Test Conducted Sv: R . Gi l f oy/ C . P i l o t t e / D . ficl a u g h l i n 9.0 Disoosition of Seccimens; Returned to Electro Switch Corporation 10.0 Abstrech There was no evidence of mechanical damage or deterioration to the Electro Switch Corp.

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

Refer to para. 3.0 for specific test results.

Report No. 11944-D 1 page ENVtRONMENTAL is }l- ""

,, acTom CORPORATION a.

, 1.0 TEST REQUIREMENTS The Electro Switch Corporation electro suitch is re-quired to pass the seismic vibration test specified in ,

paragraph or deterioration. 2.0 below, without evidence of mechanical damage 2.0 TEST PROCEDURES The electro switch was secured to a test fixture by its normal bolted to mounting the 45 means and the test fixture was securely biaxial moving table, with a biaxial seismic simulator, of the Acton Environmental Testing Corporation (AETC). seismic. test facilities for seismic vibration direction.

testing in the first front-to-back biaxial Switch contacts were monitored for momentary openings and closures throughout the subsequent seismic vibration test with seconds. the AETC/ Matrix Chatter Box calibrated for 10 micro-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.

Two monitoring accelerometers and one control accelero-meter were placed on the test item / test fixture in the following locations:

ACCELEROMETER N0. LOCATION 7&8 In a biaxial oroup at the rear of the switch: #7 vertical ; #8 in the horizontal direction of excitation 12 Control at the base of the unit Report No. 11944-D

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

0.5 to 35 Ht, 0.289 's resultant, 1 octave / minute sweep Following completion of the resonance survey in the I

first front-to-back biaxial direction, the unit was rotated 180* to the second front-to-back biaxial direction, performed.

and the above specified resonance survey wa's Following completion of the resonance survey in the second front-to-back'*biaxia'l direction, the unit was rotated 90 to the first side-to-side biaxial direction, and the above specified resonance survey was performed.

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 emoloy -

ing a Spectral Dynamic S0331 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 S0331 are included with this report.

' After 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.

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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 blaxial direction and five 1/2 SSE 36 seconds random vibration exposures were performed.

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

Following completion 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 tion axis and exposure wasthe full SSE 30 seconds random vibra-performed.

This completed the testing of th.e~ electro switch.

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

Repxt No. 1 4-D

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3.0 TEST RESULTS 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, flo '

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 deterioration' 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.

Report No. Il944-D l

. ENVIRONMENTAL i  ;[ACTON? . 5 Page k J YeonponAnon I

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TEST EQUIPMENT LIST NAME HFGR. H0 DEL SER.NO. RANGE ACCURACY INV.f 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 "

AC382 " "

565 "

  • AC383 " "

694 "

AC384 " "

697 AC387 " "

10 Hz-l HHz, 0-300 'volts '

VTVM HP 403A 12 ranges "

13% HV322 "

Sweep Oscillator SOY SD-104-5 21A 0.005 Hz - 50 KHz 11 % SG315 6 months Random Noise '

Generator GR 1381 927 2 Hz - 50 KHz +1 db SG337 " "

Hydraulic DC-300 Hz, 25K force lbs +2%F Actuator HTS 204.63S 25" DA max ~5%A PE367 3 months 1

controller HTS 443.115 DC-2000 Hz 11 % .PE367 " "

Charge Amplifier UD DilHGSV 910 1-1000G 2 Hz-20 KHz PE361 " "

~+2%

Chatter Monitor Matrix 2020 310 10 & 100 usec 12% PE370 6 months False Contact i

Honitor Matrix 2020 310 10 & 100 usec PE371 6 months 12%

l Power Unit Output _22 VDC 12 MA(used Conditioner PCB 483A 273 w/302A Accelerometers) N/A PE374 3 months en

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TEST EQUIPMENT LIST NA!!E MFGR. MODEL SER.NO. RANGE ACCURACY INY.i CAL.FREQ.

m_ ________________________________________________________________________________________________________.

Electronic Filter (dual) SKL 302 498 20 Hz 200 KHz 15% AM328 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.0yn 13116 2A 327 Display Indicator in use Shock Analyzer " "

13231 17 .1 Hz - 10 KHz N in use Transient -

Memory "

13192 18 Storage ,

in use l 1

4 A.E.T.C. TEST REPORT NO. Il944-D PAGES 8 THROUGH 32

. SEE A.E.T.C. REPORT NO. Il944-A 4

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