ML18044A378

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Rept of Seismic Vibration Testing of Various Electrical Items for B&W Under Purchase Order 033788LG.
ML18044A378
Person / Time
Site: Palisades Entergy icon.png
Issue date: 02/28/1979
From: Esposito B, Gilfoy R, Tolf M
AFFILIATION NOT ASSIGNED
To:
Shared Package
ML18044A372 List:
References
14689, NUDOCS 7912310508
Download: ML18044A378 (19)
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Text

ATTACHMENT 6

~*

Test Report *No. 14689 No. of Page.s_ _ _ _6_9_

Report of .Test ,on

  • .SEISMIC VIBRATION TESTING

. 01: VARIOUS ELECTRICAL *ITEMS FOR BABCOCK &WILCOX COMPANY UNDER ~URCHASE ORDER NO. 033788LG

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Tl!:STINGI

~-* .~.~.

  • .~ ... --~_'."

C:O~PORA'TION *

..*.~***

Date February 28, 1979 Prepared Checked Approved B.Es.posito R.Gilfoy M.L.Tolf

  • .----------- BE/nmf

Administrative Data 1 ,0 Pw:pose of Test; To subject various electrical items to*

sei~mic vibratio~ testing *.

I .

I . 2.0 j.

Monyfqcturcc Various (Refer to section 1.0 below).

  • 1 3.0 tknyfgeturer':i Iypn or Model No; Various (Refer to section 1.0 below).

4 0 Dmwirid~i* . sPm;ifieot_iori << Exhibit: Babcock &Wilcox Company

.~ ~ 1-~ .;. Purchase Order No. 033788LG*

  • I *=*; : * .

5 .0 Oygnrfty Of*ltems Testpd; Various (refe*r to section. 1.0 below}.

6 a

  • Sec:urj~ Clnpific:citjQD gf ltnm3*

Unclassified 7.0 February 7, 1979 8.0 C.Pilotte.

  • ...~***~

.* K.Rogers

.* ~ r':o '

9, Q. .

  • Qj3po3jf.iM gf Spiscim-ns:.

Returned to Babcock &Wilcox Company

  • JO O Ab!trnet* Refer to results section* below.

14689 Page _ _l __

Report No. - - - - -

1

  • 0 TEST ITEMS The following test items were submitted by Babcock &Wilcox Co.*

. for seismic vibration testing at Acton Environmental Testing *corp.

  • {AETC). * . ' . .
  • QUANTITY
  • ITEM DESCRIPTION 1 *Prototype Model LPM3 Chassis 1 PCB Model 24A Charge Amplifier

~----------------------

l Unholtz-Dickie Model 22CTAR Charge Amplifier

______________________________ .;. _____ ~-----~-------------

l Hoffman Junct.ion Box Assembly I *

~--------------------------------

2 . Endevco Modef 2273AM20 accelerometers

~----

1 Saddle Block Mount

  • l V-Block Mount . *

~-

2.0 1EST REQUIREMENTS .

The purpose of* -this test was to subject the test items specified*

  • in section* 1.0 above. to the seismic vibration test specified in section 3.0 below to determine their ability to withstand such vibration with-out evidence of mechanical damage, deterioration or loss of their abil-ity to operate properly during or after the simulated seismic ~vent.

3.0 TEST PROCEDURES.

. The test was performed under the direction of representatives from Babcock &Wilcox, who witnessed the testing. * * .

3.1 *rest Mounting One (1) of the accelerometers specified in *section l.O above

  • was mounted on the saddle block mount and the other was mounted on the V*block mount. The two mounts were securely attached to a test fixture. The two (2) charge amplifiers specified in *section 1.0 above were mounted in the.juncti:on box which was securely attached to the same test fixture. *The chassis was also secured
  • __14.-s..s-.9_ _

. Report No.

Page __2_....

to the' test fixture. The test fixture was then securely at-tached to the small 45° biaxial table of the AETC seismic test faciltty. The use of the 45° table results in equal horizontal and vertical components.

  • 3.2 Test Monitoring The test items, were visually monitored for any evidence of
  • mechanical damage or deterioration". The test items, were monitored with accelerometers by AETC personnel to determine their mechan-
  • ical response during the resonance survey and multiple frequency*

tests specified in sections 3.4 and 3.5 below. Durin~ the resonance survey specified in section 3.4 below, six (6) accel-erometers were used. Data from these accelerometers, through appropriate *signal con~itioning, was r~orded on visicorder re-cording paper included with this test report. The five (5).

  • monitoring accelerometers and Qne (l) control accelerometer were located as follows:

ACCELEROMETER AXIS SENSING NO. ORI ENTAT ION" . LOCATION*

l

  • In-a~is horizontal Top cover of the Hoffman*

2 Vertical Junction Box

  • 3

'In-axis horizontal Middle power .supply within 4 .Vertical the LPM 3 chassis.

~----------------------------------------

5 In-ax.i's ,liorizontal Base..of the test fixture 6 Vertical #6 is* the control During the multiple frequency test specified in section 3.5 below~ only the control *accelerometer was used. *zts output was analyzed on line by a Spectral Dynamics SD321 Shock Spectrum Analyzer.

The X-Y plots of the test*response spectra of the control accelerometer are included as part of this test report. The electrical and operating test conditions were monftored by Babcock & Wilcox* personnel.

  • S"ee *included phot~graphs. . .

Report No. _1_4_6_89_ __

Page _ 3_ __

3.3 *rest Conditions .

All tests were perfonned at room temperature and pressure.

During the resonance survey and multiple frequency tests speci-fied in section 3.* 4 and 3.5 below, the test items. were opera-tional. *All electrical and operating test .conditions were set *..

' I and controlled by Babcock &Wilcox personnel. *Prior to and after each of the multiple frequency tests.specified in section 3.5 below, Babcock&* Wilcox personnel verified that alarms #1,. 6 and 12 were functional. During t~e multiple frequency tests,*

Babcock

&.Wilcox personnel 1

  • monitored alann #6.

3.4 Resonance Survey The resonance survey consisted of a biaxia*l sinusoidal input with peak horizontal and vertical acceleratio*ns *of 0.2g at fre-quencies from 1 through 50 Hz. The resonance survey was per-formed at a sweep rate of one (*1) octave/minute. The input was .

applied in *two {2) horizontally perpendicular biaxial. direct.ions of excitation as follows:

TEST NO. . BIAXIAL DIRECTION OF EXCITATION*

.1 Front-to-back & Vertical 2 . ' Left-to-right &Vertical

~-,.~----------------*-~----------------

i

'. 3.s Multiple Fteguency Test *.

A biaxial multiple frequency excitatfon was applied. : Qual-ification tests, consisting of biaxial periodic pseudo-random excitation were perfonned. The level of the periodic psetido-random excitation was such th~t the Test Response Sp_ectra {TRS),

from the control aecelerometer would envelope the appropriate

.Required.* Response Spectra (RRS). The input was to be applied six {6} times in each of 'four" (4) biaxial directions of excita-tions.

  • The te~t duration* for each input was thirty (30) seconds.

The leve*l of the first five (5) inp.uts in. each biaxial direction was to be such that. the TRS from the control accelero-meter comput~ at the appropriate damping*would envelope the

  • See included photographs. Report No.* 14689 Page-._4_ _

-* ~

the appropriate OBE RRS. The level of the sixth. input in each biaxial direction was to be such that the TRS computed at the appropriate damping would envelope the SSE RRS. The .

  • input was . applied

. as follows:.

BIAXIAL .DIRECTION RUN TEST RRS TEST NO. OF EXCITATION* NO. LEVEL FIGURE 3 . Front-t~-back &Vertical 1-'5 OBE l &2 6 SSE l &2

---~-----~-----------------~---------------~-----------------------~---

4 Right..;to-left & Vertical *'*l-5 OBE l &2 .

6 SSE 1 &2

-~----------------------------------.-----------------------------------

  • Back-to-front &Vertical l-5 . OBE * .l &2
6. *SSE 1 &"2 .

~----

6 Left~to-~ight & Vertical l-5

---~--~--------------------------------------------------------------.---

7 Left ... to~ri ght & Vertical 1-5 4g ZPA *. *3 *:.

6 5g ZPA .3 7 6g ZPA 3

.---9!'--.~-----------------------------

8 . Front*to~back ... &Vertical

. 1-5 6 4g ZPA 6gZPA 3.

3 9 Ri'ght~to-left & Vertical l;.5 4g ZPA . 3 l 6 6g ZPA *3

~--------------------------------------------------

10 Back-to-front &Vertical 1-5 4g ZPA 3

. 6 6g ZPA 3 f * .

--~*~---------------------~---------------~---------------------------

.l

  • Refer to the focluded photographs
  • 14689 Report No.-----

Page _5__

4.0 TEST RESULTS 4.1 Resonance Survey Test Results No* resonances. were* detected during the resonance* s.urvey spe.cified in section 3.4 abov~.

4.'2 Multiple Frequency Test Results There was no evidence of mechanical damage, deterioration or loss of the test i.tems' ability to operate properly during or after the simulated seismic: events.

  • Test Response Spectra from tests 3*, 4, 5 and 6. was ana 1-yzed at bo~h Q=lQ.and Q=SO. The same test input was found to have a response that enveloped both the Q=lO curves of Figure 1 as well as the Q=SO cu_rves of Figure 2.

\.

14689 Repo rt No.~--~~--

Page _ 6 __

rEsT EQUIPMENT LIST-*

NAME MFGR. MODEL SER.NO. RANGE ACCURACY INV .II CAL.FREQ.

Accelerometer PCB 302A 670 0,25 Hz .. 5 KHz +5% AC379 3 months

. II

. II 671 II II AC380 II II II II II 672 * . AC381 II II II II II 673 II II

- AC382 II II II II

  • II 2a45 1 Hz .. 5 KHz II AC383 II II II . 11 694. . 0.25 Hz - 5 KHz II AC384 II ,II Differential DC
  • 300 KHz 1 Mv-20V/Div Amplifier Tektronix 2A63 8542 plug-in-unit +3% OP306 II II 1 usec - 5 sec l dfv.

T1me Base II 2B67 20128 plug-in-unit - fl OP307 II II Scope,Storage II 564- 11582 DC- 10 MHz +3% 05309 II II Hydraulic Actuator MTS 204.635 DC-300 Hz, 25K force lbs +2%F 25 11 DA max. +"5%A Controller H 443.115 DC - 2000 Hz +n: PE367 6 months Power Supply .. 22 voe 12 MADc Rack PCB 483A 299 12 channel N/A

  • PE379 II II Power Supply.& 12 channel Xl &X5 gain Amplifier PCB
  • 483M23 289
  • filter freq. 50 :Hz* II
  • PE385 II II
  • Gain 0.01/.02/.05/.1/.2/.5/

Amplifier DC *Honeywell 117-06. 1000-54 1/2/5/l_O +2%DC PE394 II II Input:l-10*100 MV 1-lOV Recorder X-Y I . MFE 715E 42167 Both channels  :!:_0.5% RE340 3 months DC-2 KHz 12 channel Vis ico.rd~r Honeyw1::ll 1508 15-1670 811 paper +ldb RE344 II II

fl IC CD 1~

TEST EQUIPMENT LIST NAME MFGR. MODEL SER.NO. ACCURACY INV.# CAL.FREQ.

Sweep Oscillator SOY SD-104-5 21A 0.005 Hz *- 50 KHz +1% SG315 6 months Recorder Honeywell 5600£ 71534 (RENTAL - ~LECTRO RENT)

. iI

~

I i

l LEFT-TO-RIGHT &VERTICAL BIAXIAL DIRECTION OF EXCITATION

. TESTS. 2, 6 & 7 14689 Report N o . - - - - -

9 Page _ __

ACCELEROMETER LOCATIONS 14689 Report N o . - - - - -

.:. Page __l_o__

c ACCELEROMETER LOCATIONS Report No. 14689 Page _ 11

~.*

ACCELEROMETER LOCATIONS 14689 Re~rt No~ - - - - -

12__

Page _ _

I FRONT-TO-BACK &VERTICAL BIAXIAL DIRECTION

  • OF EXCITATION

. TESTS l , 3 & 8 14689

~ Report No. - - - - - -

13 Page _ _ __

. *L

-~ ~ ..

. l

~ ..

'RIGHT-TO~LEFT &VERTICAL BIAXIAL DIRECTION OF EXCITATION . .

  • TESTS 4 & 9 14689 Report N o . - - - - -

Page _14

' I i

BACK-TO-FRONT &VERTICAL BIAXIAL DIRECTION.

OF EXCITATION TESTS 5 & lO

.. ~. ~

14689 geport No. - - - - - -

15 Page _ _ __

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