ML20052B228

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Rept of Test on Seismic Vibration of Electro P/N 10LB2206C8 for Electro Switch Corp.
ML20052B228
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-C, NUDOCS 8204300190
Download: ML20052B228 (9)
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Text

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. y Tait Report No. 11944-C No. of Pages 32 Report of Test on SEISMIC VIBRATI0ft 0F

, ELECTRO,,,P/ft 10LB2206C8 for ELECTR0 SWITCH CORPORATI0ft under PURCHASE ORDER fi0. 71400

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.jili ACTOIU hib rdi p CORPORATION November 14, 1975 Date Prepared Checked Approved BY K. Martini R .Gil foy M.L.Tolf .

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. A'dministrative Data

'1.0 Purcose of Testr Qualifi. cation seismic vibration of the Electro Switch Corporation electro switch specified below.

2.0 Manufce tuten Electro Switch Corporation

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3.0 Manufceturer's Tvoc or Model Nor Electro P/fl 10LB2206C8 Series 10L, 6 decks, 12 oz.

4_0 Draw.ing. Sece.ficet.ien i er Exhibit: The Electro Switch Corporation letter, dated September 8, 1975 to Acton Environmental Testing Corporation (AETC) from Mr.

J.R.Qualey.

5.0 Quentity of items Tested:

0.ne (1) electro switch 6_0 security Cinttifientinn nf item" tione 7.0 Date Test Comnleted! October 29, 1975 8.0 Test Conducted Bv: R.Gilfoy/C.Pilotte/D.McLaughlin 9.0 Discosition of Seccimens' Returned to Electro Switch Corporation 10.0 Abstreet-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-C I Page ENVIRONMENTAL.

Y  !! TESTING ii ACT0fJ g ,

4 CORPORATION e

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, , 1.0 TEST REQUIREMEllTS

"; The Electro Switch Corporation electro switch is re-quired to pass the seismic vibration test specified in paragraph 2.0 below, 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 securely bolted to the 45' biaxial moving table, with a biaxial seismic simulator, of the Acton Environmental Testing Corporation ( AETC) seismic. test f acilities 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 Chatter 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-meter were placed on the test item / test fixture in the following locations:

ACCELER0 METER NO. LOCATION 1&2 In a biaxial group at the rear of the switch. #1 vertical; #2 in the horizon-tal direction of excitation.

12 Control at the base of the unit.

Il944-C Re rt No.

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

0.5 to 35 Ht, 0.28g'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" biaxia*1 direction , the unit was rotated 90* to the first side-to-side biaxial direction,

. and the above specified resonance survey was performed.

Following completica 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 50331 are included with this report.

After performing five 1/2 SSE random vibration inputs in the first froht-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.

Report No. 11944-C

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ACT0f4

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Following completion of the five 1/2 SSE in the sacond 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 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 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-i meters were displayed on oscillographic recorders.

1 I Report No. Il944-C l

ENVIRONMENTAL

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l " ACTc

  • 4 pog, CORPORAT10N l

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3.0 TEST RESULTS fio resonances of th.e 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.

s fio damage or deterioration

  • occurred to the Electro Switch equipment as a result' of.the full SSE in any of the four biaxial directions.

fio contact chatter occurred throughout the seismic vibra-tion testing.

Report No. Il944-C

  • E NVIRONMENTAL IE8DN

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Page con m anon

TEST EQUIPMENT LIST NAME MFGR. MODEL SER.NO. RANGE ACCURACY INV.f CAL.FRE Accelerometer PCB 302A 666 0.25 Hz - 5 KHz AC375 3 months 15%

667 " "

AC376 " "

668 " " "

AC377 " "

669 " "

AC378 " "

670 "

AC379 " "

671 AC380 " "

672 d "

. AC381 " "

673 " "

AC382 " "'

565 " -

  • AC383 " "

" " .+

694 " "

AC384 " "

697 " "~

AC387 " "

VTVM 10 Hz-1 Mitz, 0-300, volts HP 403A 12 ranges MV322 " "

13%

Sweep Oset11ator SDY SD-104-5 21A 0.005 Hz - 50 KHz 11% SG315 6 months Random Noise Generator GR 1381 927 2 Hz - 50 K!!z SG337 "

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11 db Hydraulic DC-300 Itz, 25K force 1bs +2%F Actuator MTS 204.63S 25" DA max 15%A PE367 3 months Controller MTS 443.115 DC_2000 Hz 11 % .PE367 " "

Charge Amplifier UD D11MGSV 910 1-1000G 2 Hz-20 KHz PE361 " "

12%

l Chatter Monitor Matrix 202D 310 10 & 100 usec PE370 6 months i 12%

False Contact Monitor Matrix 202D. 310 10 & 100 usec +2% PE371 6 months Power Unit Output-22 VDC 12 MA(used Conditioner PCB 483A 273 w/302A Accelerometers) N/A PE374 3 months m

TEST EQUIPMENT LIST NAME MFGR. MODEL SER.HO. RANGE

_________________________________________________________________________________ ACCURACY INV.i Electronic Filter (dual) SKL 302 498 20 Hz . 200 KHz +5% AM328 6 months Power Supply BUBR 506/16 322 1,15 VOC, 1 ADC 0.5% PD372 " "

Yisicorder Honeywell 906 9-5235 DC - 2 KHz 12 channel +1 DB RE332 3 months Recorder "

906C 99078 DC - 2 KHz 12 channel 1,1 db RE335 " "

X-Y Plotter HFE 715 42167 RENTAL in use X Y Display Spec.0yn 13116-2 A 327 Display Indicator in use Shock Analyzer " "

13231 17 .1 Hz - 10 KHz 1 in use Transient Memory " "

13192 18 S t'o ra ge in use G

O d' A.E.T.C. TEST REPORT fl0. 11944-C PAGES '8 THROUGH 32 SEE A.E.T.C. REPORT fl0. Il944-A 4

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