ML20081H770

Seismic Confirmatory Program Sample Example 3:Motor Control Ctr (Electrical)

ML20081H770
Person / Time
Site:	Summer
Issue date:	10/18/1983
From:	GILBERT/COMMONWEALTH, INC. (FORMERLY GILBERT ASSOCIAT
To:
Shared Package
ML19268E397	List: ML20081H710 ML20081H728 ML20081H742 ML20081H749 ML20081H770 ML20081H785 ML20081H799
References
PROC-831018-02, NUDOCS 8311070577
Download: ML20081H770 (29)

Text

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. MEL VilNARY 3 SSLE Date "li'/H VIRGIL C. SUMMER NUCLEAR STATION SEISMIC CONFIRMATORY PROGRAM SAMPLE EXAMPLE 3 EQUIPMENT NAME & SYSTEM: Motor Control Center (Electrical)

EQUIP)ENT TAG NO. AND LOCATION  : XMC - 1DA2Y Auxiliary Building El. 412' EQUIPMENT VENDOR  : Square D TESTED BY  : Wyle Laboratories QUALIFICATION REPORT # : 92-2196 MARGIN AGAINST ACRS  : 4.80 MARGIN AGAINST ASLB  : 6.01 e

o O hok GILBERT / COMMONWEALTH P P. O. Box 1498 Reading, Pennsylvania 19603

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TABLE OF CONTENTS

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Required Response Spectra - ACRS 3 -5 Required Response Spectra - ASLB 6 -8 Relevant Seismic Qualification Report Information 9 -22 TRS and RRS Comparison Plots (ACRS) with Margins 23 -26 TRS and RRS Comparison Plots (ASLB) with Margins 27 -29 3

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R.I.S. Y OURKE 1

o COMPARISON OF FRS FOR SSE FIGURE S4Y SPEC 702 EQUIPMENT DAMPING: 0.050 RCRS DATE: 09/17/83 N00lFIED TO SSE A-A-A 10-ACRS/54Y/0.050 i

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COMPARISON OF FRS FOR SSE FIGURE S4Y SPEC 702 EQUIPMENT ORMPING: 0.0SO

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RELEVANT SEISMIC QUALIFICATION REPORT INFORMATION FROM SEISMIC QUALIFICATION REPORT NO. 92-2196 4

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CERTIFICATE OF SEISMIC COMPLIANCE 1

Re: Virgil C. Summer Nuclear Station - Unit 1

'~ Gilbert Associates, Inc. Specification No. 555-044461-000,

. Supplement Specification No. 702-4461-00 . .

Purchase Order No. SN-10198-SR This certifies that the enclosed report entitled " Seismic Qualification '

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Report," for

Model 4 Motor Control Center, supplied for: Virgil C.

Summer Nuclear Station - Unit 1, supplied by: Square D Company, Report No.: 8998-10.09-L12-R, written by: Deepak H. Bhatia, dated: May 24,  ;

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1977, provides the required documentation for Seismic Qualification of  !

Square D Company Model 4 Motor Control Centers in accordance with the requirements of Gilbert Associates, Inc. Specification No. 555-044461- ,

000, Supplement Specification No. 702-4461-00, for the Virgil C. Summer i

j Nuclear Station - Unit 1.

i The information contained in this report is the result of complete and -

carefully conducted tests and is to the best of our knowledge true and correct in all respects.

i f* 1MW D. G. Fischer W. G. No11enberger  !

Chief Engin'eer Vice President / Group Manager 1 Power Equipment Group l

Qualified engineering personnel, knowledgeable in the area of concern, have provided the necessary justifications to demonstrate the capability i of the equipment to meet the seismic requirements of the referenced ';

specification.

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j Professional Engincar -

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ABSTRACT SEISMIC TESTING OF A MODEL 4 MOIOR CONIROL CENIER a

i A Model 4 Motor Control Center was subjected to a Seismic Simulation Test Program to withstand the stringent seismic enviror. ment expected at the i Virgil C. Suniner Nuclear Station - Unit 1. The seismic testing was con-i ducted in accordance with the Square D Company's Test Plan - Peru Project Number 8998-10.01-L12, Revision 1, dated January 7, 1977, and Wyle Lab-oratories' Seismic Test Plan 541/5793/ES, dated January 11, 1977 Revision j ..

A, at Wyle Laboratories in Huntsville, Alabama, from February 24, 1977 through February 26, 1977. ,

A representative five-section test-module, hereinafter called the specimen.

was tested with at least on,e sample of each family'and size of unit. There  :

was a shipping split between the third and the fourth section, thus the test-module was tested as two structures. The specimen was welded to the

.. WHe Multiaxis Seismic Simulator Table. The specimen was tested in side-to-

'..'r side versus vertical and front-to-back versus vertical axes orientations, i

respectively. Sine-Sweep Tests with low-level, biaxial input (approximately

] 0.2g horizontally and vertically) were conducted from 1 HZ to 35 HZ at the

! sweep rate of octave per minute. Random Multifrequency Tests (biaxial) were conducted to produce the Test Response Spectra (TRS) which would success-fully envelop the Required Response Spectra (RRS) at five percent damping factor. Five Operating Basis Earthquake (OBE) tests, followed by two

" Design Basis Earthquake (DBE) tests were performed in_ both test axes orientations. Change-of-state of the coils (picked up and dropped out) of '

various devices was performed during the seismic excitationc. During the Second DBE tests, the input power was reduced to 90% of the nominal 480

VAC (432 VAC) and the coils were picked up. Then the input power was further

reduced to 657. of 480 VAC (312 VAC) and the coils were maintained picked up.

I Electrical monitoring channels were connected to the contacts of various

)l devices to detect chattering and malfunctioning.

It was demonstrated that the specimen possessed sufficient integrity to l

withstand, without compromise of structural' or electrical function, the prescribed simulated seismic environment. The following report consists of

, detailed test procedures, results, conclusions,' photographs, calculations, and data concerning seismic testing.

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The cables were sized on a best-effort basis to correspond to

, , the devices' output terminals. For the MCC sections I through

, III, the cables were passed through the top of each section;

'- for the MCC sections IV and V, the cables were passed through the top of section IV (refer to Photograph 1). The dummy cables coming out of each section were tied together and were suppcrted four (4) feet above the top of the MCC by a crane. Load cable types and approximate lengths were as given in Table II.

3.4 Sine Sween Tests The purpose of these tests was to study the characteristics of the structures and its response to the input acceleration. Twenty-six (26) accelerometers placed at various locations (Figure 1) were used to ascertain the resonants or natural frequencies, amplification factors and the damping of the structures. ,

The specimen was mounted on the test table as explained in Section 3.1. Two control accelerometers (vertical VCA_and hori_

zental HCA) were mounted on the table to read the input acceler-ations of the test table. The table was subjected to a low-level (0.2g hori:entally and vertically) biaxial sine sweep in both the side-to-side / vertical and the front-to-back/ vertical axes orientations. The sweep rate was one-half octave per minute over the frequency range of 1 HZ to 35 HZ. Two uniaxial accelerc=eters iTeEcounted at each location, one accelero=eter would read verti-cal acceleration, indicated as n,V_, another accelerometer would read horizontal acceleration, indicated as nH e. g. , IV and 2H h-are the top vertical and horizontal acceler E e,ters in the first column, respectively. The horizontal accelerometers labeled as nFB (front-to-back) and nSS (side-to-side) designate the orien-tation of the specimen during the testing. Photographs 1 and 2 show the specimen mounted in side-to-side / vertical and front-to-back/ vertical orientations, respectively.

The response of each accelerometer was recorded on tape. The transmissibility plots are obtained by:

A=plification = I or nH VCA HCA Then from the plot, the natural frequencies, magnification factors, and the damping at the location of the accelerometer are deter-mined. The natural frequency "f " is determined by the peak amplitude of the transmissibility plot. This is when the res-onance occurs. The magnification factor (Q ) is also determined at the resonant frequency. This provides efle maximum magnification of the input that will occur in the desired frequency range.

Generally, a peak magnification of 2.0 or greater ratio is con-sidered as a resonance.

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The damping factor "3 " is calculated by the half-powered

. . . band-width method. The process to determine the damping

,- ' factor in terms of percent of critical damping is as follows:

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f g g Damping factor, j =

x 100 2f where, f

y and f are the frequency at which Q = -Q2-2 5

Qo = Resonant Magnification Factor f = Resonant Frequency l

The band-width method is less accurate for a damping factor greater than 107..

Upon completion of the required sequence of tests, the speci,-

men was rotated 90 degrees in the horizontal plane and the required sequence of tests were repeated. The transmissibility plots for 26 accelerometers in side-to-side, vertical and

, front-to-back, vertical axes are given in Appendix II.

3.5 Random Multifrecuency Tests The random multifrequency tests were conducted to qualify the specimen for the specified RRS at the OBE and the DBE levels for the V. C. Summer Nuclear Station - Unit #1. Figures 2 through 5 show the RRS curves at five percent (57.) damping

.. factor in horizontal and vertical axes at OBE and DBE levels, respectively.

The specimen was mounted on the test table in the S-S/V axes orientation (Photograph 1). The_ specimen was subjected to simultaneous horizontal and vertical inputs of random motion consis' ting of frequency bandwidths spaced one-third (1/3) octave

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apart over the frequency range of 1 HZ to 35 HZ. The amplitude of

, each one-third (1/3) octave frequency bandwidth was checked and in-dependently adjusted in each axis = until the TRS exceeds the RRS.

The horizontal and vertical control accelerometers were recorded on oscillograph and FM tape recorders'. The resulting table motion was analyzed at five percent (57.) damping, and plotted at one-third (1/3) octave frequency intervals over the frequency l range of interest.

Five (5) tests were conducted at the OBE level, out of which the

( first four tests were conducted for a duration of 30-seconds and

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the final OBE test was conducted for a duration of 45-seconds,'

respectively.- First and second OBE tests were conducted with f%

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~ the devices monitored in Condition A for the first 10 seconds and in Condition B for the last 20 seconds. (Conditions A and B are as described in Paragraph 3.2). Third and fourth OBE tests were conducted with the devices monitored in Condition B for the first 10 seconds and in Condition A for the last 20 seconds.

The final OBE test was the same as the first DBE test described below.

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Two (2) 45-second duration tests were con' ducted at the DBE level. The first DBE level test was performed with the devices monitored in Condition A for the first 5 seconds, in Condition B for the next 20 seconds, and finally in Condition A for the last 20 seconds. The second DBE level test was performed with -

the varying input power during the seismic excitations. The purpose of this test was to pick up the coils of the monitored devices at 907. and maintain the coils picked up at 657. of the nominal 480 VAC. This was achieved in the following manner:

a. Due to the current limit of the three phase voltage variable transformer, the electrical loads on the FD 401, EC 401 and EF 404 Starter Units were removed.

b. The reversing starter coil of the FD 401 Starter Unit and Contactor II coil of the Emergency X-Fer Unit were de-energized prior to the test by disconnecting the coil and opening the feeder breaker supplying power to the Contactor II, respectively.

c. The input power was reduced to 432 VAC (907. of the nominal 480 VAC) and the devices were tested in Condition A for approximately the first 5 seconds.

d. The condition of the devices was changed to Condition B and the coils of the monitored devices were picked up.

A f ter approximately 5 seconds, the input power was further reduced to 312 VAC (65% of the nominal 480 VAC).

The coils were held picked up fer approximately the next 10 seconds. Then, the input power was raised back to 432 VAC and was maintained for the next 5 seconds.

e. Finally, the devices were monitored in Condition A for

, the last 20 seconds of the 45-second duration DBE level test.

Upon completion of the required series of tests in S-5/V axes orientation, the specimen was rotated 90 degrees in the hori-zental plane. The series of tests in F-B/V axes orientation were performed.

The TRS plots at five percent (57.) damping in the S-S/V and F-B/V axes orientations are given in Appendix III.

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4. RESULTS

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. This section describes the performance of the devices and the structures, characteristics of the structures calculated from the structural response, and the qualification of the specimen for the required job. The following are the results of each test performed:

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4.1 Sine-Sween Tests The specimen was welded to the test table in the S-S/V and then F-B/V axes orientations as explained in Section 3.1.

A low-level (approximately 0.2g horizontally and vertically) biaxial sine sweep was performed in both the S-S/V and F-B/V orientation to determine specimen resonant frequencies. The sweep rate was one-half octave per minute over the frequency range of 1 HZ to 35 HZ. It was demonstrated that the specimen possessed sufficient integrity to withstand, without any mechanical or electrical compromise, the resonant search tests.

The description of each resonant search test including the test number, orientation and input acceleration are given in Table III.

Transmissibility plots for each specimen mounted accelerometer (divided by the control accelerometers) from resonant search tesesare presented in Appendix II.

(h The specimen damping factors were calculated by the half-powered bandwidth method as explained in Section 3.4. The data to calculate the damping was obtained from the trans-missibility plots for the accelerometers at the highest location on the specimen.

a. During Test Number 1, the specimen was mounted in S-S/V axes orientation. The highest located vertical acceler-remeter was 25V. It did not experience any resonance in the vertical axis.

b. The specimen's resonant frequencies in the horizontal (S-S) axis were calculated from the Accelerometer 26SS, which was the uppermost horirontal accelerometer. There

, were two modes of vibration in this axis. The first mode resonant frequency was 6.2 HZ and the damping was 9.7% of the critical damping. The second mode resenant frequency was 24.0 HZ and the damping factor was 10.47..

c. During Test Number 13, the specimen was mounted in F-B/V axes orientation. The specimen's resonant frequency in the vertical axis (read from the acceleremeter 25V) was 32.0 HZ and the damping factor was 14.07..

d. The specimen's resonant frequencies in the horizontal

(_ (F-B) axis were calculated from the Accelerometer 26 F-3.

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lCT' There were three modes of vibration in this axis. The 16' first mode resonant frequency was 4.4 HZ and the

- damping factor was 2.47.. The second mode resonant

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frequency was 19.5 HZ and the damping was 2.67. of the critical damping. The third mode resonant frequency was 21.0 HZ and the damping factor was 0.47..

Specimen Resoonse Results Damping Test Axes Accelerometer F Q0 Factor

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l' SS/V 25V None - -

,1 SS/V 26SS 6.2 3.7 9.7 1 SS/V 26SS 24.0 2.2 10.4*

13 FB/V 25V 32.0 4.4 14.0*

13 FB/V 26FB 4.4 12.1 2.4 13 FB/V 26FB 19.5 5.2 2.6 13 FB/V 26FB 21.0 9.0 ' o. 4

• Damping factors calculated by the bandwidth method are less accurate at values greater than 107..

It should be noted that the resonance above 35 HZ were not

considered, since these were out of the interested frequency i range.

4.2 Random Multifrecuenev Tests The object of these tests was to successfully envelop the TRS at the OBE and the DBE levels, as explained in Section 3.5.

. The specimen demonstrated sufficient integrity to withstand, without any structural or electrical failure, the specified 4

seismic environment.

The purpose of f'ive (5) OBE level tests was to see the effect of low intensity earthquakes to the performance of the equip-ment; also to seismically age the specimen as required for IEEE 323-1974. Four (4) 30-second duration and one (1) 45-second duration OBE level tests were performed under combined Conditions A and B as explained in Section 3.5. The change of state of contacts was performed during the event of seismic excitations. Two (2) 45-second DBE level tests were performed under combined Conditions A and B with the change of state of contacts as explained in Section 3.5. All the R.M.F. tests were performed in each axes orientation.

• The TRS were plotted at five percent (57.) damping.

The first series of R.M.F. tests were conducted in the S-S/V axes orientation. Four (4) 30-second duration tests (Test Numbers 5 through 8) were performed at the OBE level. One (1) 45-second duration test (Test Number 9) was performed at the

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OBE level. There was no structural or electrical damage I

_ experienced. .ghv The first DBE level test (Test Number 10) was performed for / ,

a 45-second duration. The second DBE level test (Test Number / J'

12) was performed for a 45-second duration.

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. this DBE level test was to pick up the coils of the monitored i/

-. starters and relays at 432 VAC (907. of the full voltage of h )(,,d #

480 VAC), and maintain the coils picked up at 312 VAC (657. of i e'g -

480 VAC) for at least 10 seconds duration during the seismic j excitations. The above listed DBE level tests were performed G';j.k v' s' successfully without any structural or electrical damage. How- ,

ever, C-phase cutput of the FD 401 Motor Starter (Channel 3) .-E- 4 4 cgy 3, [

exhibited contact chatter of up to 35 milliseconds in duration during Test Number 12. .

The second series of R.M.F. tests were conducted in the F-B/V axes orientation. Four (4) 30-second duration tests (Test Numbers 15 through 18) were performed at the OBE level. One (1) 45-second duration test (Test Number 19) was performed at the OBE level.

Two (2) 45-second duration tests (Test Numbers 20, and_lll were performed at the DBE level. The coils of the monitored starters and relays remained picked up during the input varying DBE level test. There was no structural or electrical damage experienced during the OBE and DBE level tests.

It was demonstrated that the specimen possessed sufficient integrity to withstand, without compromise of structure, the prescribed simulated seismic environment.

The R.M.F. tests are described including the test numbers, test axes, input accelerations and specimen electrical operations, in Table III.

TRS. plots of the horizontal and vertical accelerometers analyzed at five percent (5%) damping for each OBE and DBE level tests are presented in Appendix III. TRS plots of the monitored horizontal and vertical accelerometers analyzed at five percent (57.) damping

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for one (1) DBE level test 1n each axes orientation (Test Numbers 10 and 20) are also presented in Appendix III.

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5. CONCLUSIONS c 3

We -conclude that the perfcrmed seismic testing satisfies the require-ments for the V. C. Summer Project. There were no structural, mechan-ical, or electrical failures detected during the sine sweep or R.M.F.

tests. The MCC test-module was subjected to mere severe simulated excitations, and'different operating conditions than would be expected during its lifetime. Thus, these tests demonstrated the Model 4 Motor Control Center's ability to operate properly under the esti-mated seismic environment at the Virgil C. Summer Nuclear Generating Station - Unit #1, and to meet' the stringent operational safety requirements specified by Gilberts Associates, Inc.

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I 1)ESCHIPTIOil OF TESTS ,

TI:ST TYPE NOMINAI. IIH tlT ACCI:l.ERATIONS (y's)

• Ho. AXES OF TEST T.EVEL ' 3:zpA '

VZPA REMAHKS 1 SS/V Sine Sweep -

.2 .2 1 2 SS/V RMP < ODE 2.1 .36 Specimen operated from condition A to Cond. B after 10 see of the

. 30 see test.

3 SS/V RMP < OBE 2.7 .52 Same operation as Test 2.

1 SS/V RMP < ODE 3.0 .36 Same operation as Test 2. .

5 SS/V RMP ODE 2.4 .54 Same operation as Test 2.

6 SS/V RMP ODE 2.7 .40 Same operation as Test 2.

7 SS/V ItMP OBE 2.6 .40 Specimen operated from Cond. D to Cond. A after 10 sec of test.

11 SS/V RMP One 2.6 .38 Same operation as Test 7.

9 SS/V RMP OBE 2 . 7, .75 Specimen operated as follows:

. Cond. A for S-seconds, Cond B for 20 sec. and Cond. A for 20 sec.

45 sec. total test time.

'10 SS/V RMP DDE 4.2 1.0 Same operation as Test 9.

11 SS/V RMP DBE 5.2 1.2 Specimen incorrectly operated by the Square D technical Repre-sentative. Repeat Test (see

' Test No. 12).

12 SS/V RMP DBE 4.5 .75 started test in Cond. A with 3-phase input power at 432 vac.

After 5 sec. of test, operated to Cond. B and then reduced power to 312 vac. After approx. 16 sec. at 312 vac, power was increased to 432 vac. After 8 more sec, the specimen was operated back to Cond. A.

, , , Up to 35 millisecond luration chatter on Ch. 3 (PD401).

2. . . _ .

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TAul.E III(Continued) ,

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TI:ST TYPE NOMillAI. IrlPilT ACCEI.El(ATIOriS (q's) tio. AXI:S OF TI:ST I.EVEl. IIZPA VZPA REMAltKS 13 Fil/V Sino Sweep ---

.2 .2 11* Fil/V IMP < OllE 2.2 .30 Same operation as Test 2.I l '.3 Fli/V ItMP Out: 2.7 .42 Same operation as Test 2.

16 rit/V ItMP OBE 2.7 .44 Same operation as Test 2.

17 Fil/V ItMP 0 181-: 2.4 .42 ,

Same operation as Test 7.

lll Fil/V RMP Ol3E 2.7 48 tio power to specimen.

19 FH/V imp One 3.0 .75 Test duration of 45 sec. Same operation as Test 9.

20 Fil/V ItMP DDE 4.2 1.1 Test duration of 45 sec. Same operation as Test 9.

21 Fil/V ItHP DnE 4.5 1.3 Test durat{'on of 45 sec.

Same operation as Test 12.

• Ehatter on Channels 17, ID and 20 tioTI:: , lharing Test Nos. 11, 12 and 21, the coils of the FD401 Reversing Starter and the ETU Contactor II coil were de'-energized prior to test by disconnecting the coil and opening the feeder breaker, respectively.

I.1:Gl: tin : !;S/V =

Side-to-Side / Vertical FH/V =

Front-to-llack/ Vertical Imr = Itandom Multi f requency Oill' = Operating Dasis Earthquake Hill: = Design Dosis I:arthquake ll'PA = llorizontal Zero Period Acceleration VZPA = Vertical Zero Period Acceleration O

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, i i . .

i

u. < . . .i . . , . . . , . i g j ,,-6 . i . 6 6 i , s . 6 e i i . . . .

n 8

as 8 .

.a J1 y' i* .

je i p - - . ,

i

i

;- .,

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.. 4.

',4 ,

i G

3' L . - . _ . _ _

_= _ ,

2: ,

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--+

+ i . , ,

i 4

1

,. i ,

i ",

i . . . . . . ,

2 3 4 e s 7 a 7 :: 2 2 a s s 7 -

2 3 a 5 5 1 j 10 s ICO 1000

, Frequency (Hz) s ig~'

AX15 S iCc m S sC E / sleC- s .

, LOCATION NO. M4 TEST RUN NO. l0 I

22.

Pzga No. 92 Report ::c. 43523 1 s, -

FULL S'CALE SHOCK SPECTRUM (g Peak)

(,) 1.0 0 10 0 tco G 1c00 0 DAMPING l 5 5l

s 9

s- o '

7 , .

i i i i . i . '

4 -.

5 4

m

~4

_'__--...g n 2 o ,

v P%

e i >

Mr i t I  ! # ,

t . '. , t , e i . . .. . , , i . . .

H 8

r, -

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cm

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• ug .

i . a

+

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i

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u, . . - i,.

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=;~ '-

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s. ,

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. ~

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2 4 E' I I

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6 3 i

. i . . . ., , , i i ,

2 3 4 s e7 i a :- 2 3 4 s <r i .-  : 2 - s 5 - i . .:

j 10 100 1000 Frequency (Hz)

AXIS SCC m s.1CC f v c-'--

- LOCATION NO. VC 4 i TEST RUN NO. 30 l

l l

l

,m_

. 23.

OW COMPARISON PLOTS .

OF TRS AND RRS (ACRS)

AND MARGIN CALCUIATION I

i i

t i .

e s

t I

l l

! _. - -- . . . _ _'#"-*e'-%rwg--m_m,,,,__, _

24.

- Margin for Equipment Qualified by Biaxial Test

.~

Equipment margin can be calculated as shown below.

[rlOcQllrejuencf 1[

l ~TRS4

' i i RRSn l , .

Hovig enTAI i i 8

I 3

1 i I l l I

l Artncal ,2recuencf

1. W$

t ,

l

. erin

• cal E f:

Calculate margin m1, m2 for frequencies f1 and f2 as Mu= [TPSPf, ? ( TR$ Yf, Y (ER!vf,)'+ (RRSegl'

• 0 9 NL [YE3Mf,) 4 ( TR3y l, X 0.9 (likjyg) T (RRfyf, The smaller value of mi and m2 is defined as,the margin of the equipment.

Critical frequency is defined as the frequency which has the smallest TRS/RRS ratio.

A constant 0.9 is applied to incorporate the 10% increase of RRS.

't SCEAG V.C. SUMMER NUCLEAR STATION TRS m RUXILIRRY BLOG EL 412-0 EQUIP. SEISMIC SRFETY MARG. REVIEW RCRS HORZ QURKE S COMPARISON TRS, RCRS, RNO SSE SSE m EQUIPMENT ORMPING: 0.0SO .

f, DATE 10/08/03 MOTOR CONTROL CENTER (E.E.1

- i .

MAXIMUM FLOOR @CC.

RCRS -- - = 0.302~~ G o SPEC 70 2 = 0.36D G o

b MARQIN, . d5:fo*Tl 582 ; o,90 sh) '

p.65' + o.7s* ,

O o

m _. __

hlbNkIk

• I*W.i.db21...%~OMO- ~4.-~@

3 /o. 478 + l.o7 i Z

O g

~o f- ._ . . . .

EQ a

... < f ge%*

l l1J O o U ._ . _ . . . _ _ _ .

k

_A q

'r _P h _

b*

8 .. __ _

7'

~

a s.

f --

, N c

? k p

y

,. a .

~ Y

. . . . ....,. .......; ... .,.... . . . . . ., . . ., g

. . . . ..,,........l... l....

g 106 2 3 11 5 6 7 8 9 '10 2 3 4 5 m, u

' 97 DATE: 10/08/83 l FREQUENCY (HZ) 1 JOB m ,

1 1

~

1

! SCEAG V.C. SUMMER NUCLEAR STATION TRS o-0-0 RUXILIRRY dLDG EL 1112-0 1 EQUIP. SEISMIC SAFETY MARG. REVIEW RCRS VERT GURKE 1 g COMPARISON TRS RCRS, AND SSE SSE m EQUIPMENT ORMPING: 0.0S0 g DATE 10/08/03 MOTOR CONTROL CENTER IE.E.)

2 4

MAXIMUM FLOORsACC.

RCRS - r = 0.2$0 G 1 SPEC 702 = 0.16tl G -

o tn- -

p

, o o

i q. -

.o _

z lO i ~o g

f & . .

ccm i CC .

, to 1

, to

og

)o..._

, cc<o L _

i I

) o 1 o w

1 .

p l +% v .

\

. W / + ,

-J D.

<W v

g. /* -

, m I

==- m.

• • s a s I ia e e ie a y a y v v v i s e r s r v a e i u i * ' ' ' ' ' ' ' ' ' ' ' ' ' ' ' '' '

\

r ' se onie: i o / o 8 / 8 3 1.>

FREQUENCY (HZ) 1 Joe I -. . -

27.

5 e

en W COMPARISON PLOTS OF TRS AND RRS (ASLB)

AND MARGIN CALCULATION e

3 e

d

• s

-,, , - - , - u. - _ - . -- - -y g -

w& a ,w7 -e --r--.

i i

SCE4G V.C. SUMMER NUCLEAR STATION '

i' TRS o-o--o AUXILLARY BLOG EL 412-0 EQUIP. SEISMIC SAFETY MARG. REVIEW ASLO HORZ QUAKE o COMPARISON TRS, ASLB, AND SSE SSE A-A-A EQUIPMENT DAMPING: 0.050 DATE 10/08/83 MOTOR CONTROL CENTER (E.E.)

MAXIMUM FLOUh ACC.

o ASLB - r = 0.161 G SPEC'702 = 0.360 G ul MARQ1 N,a_... .../5.2Ii +. hMI. _

x.. 0.7 0{.3_ to. 6_. . . _

~ .

l /o.20? t O.t5'-

9 i o i o j .. _ _M AQl.N, 3 ./5.4 B* +_h 3of , y 49o_ m 6.o1.

3 /0.615* + 0.56' 4

Z jO o a

b

• C*..

l 1 _J .<

\

L1J N

')@%' WKD*._

1 me_.

i

)? >

o o

] .

+%

@%' o-o../

~~

f a '

b 3 ' ' ' ' '1

't ' ' ' ' ' ' ' ' ' ' ' ' ' ' '

10 2 1 5 6 7' 8 9 10 2 3 1'1 ' ' ' ' s ,w =

^'

1 FREQUENCY (HZ) l J00 93 DATE: 10/08/83 1

/gx-

j

.i

' L SCE(G V.C. SUMMER NUCLEAR STATION TRS m AUXILIARY BLOG EL til2-0 '

EQUIP. SEISMIC SAFETY NARG. REVIEW ASLB VERT GUAKE i S COMPARISON TRS, ASLB, AND SSE SSE A-A-A EQUIPMENT DANPING: 0.0SO 1

g DATE 10/08/83 N0 TOR CONTROL CENTER (E.E.)

a -

(

i NAXINUM FLO0h ACC.

o SN!5ba'=0:!bG -

on_ -

I

, c o

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o l

o- $-- -

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) -

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ce

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l o I

g. p .__

i

@% ob l N > W gg ,

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, .A

' ' ' ' ' ' i'

M-

'' 'i

_Mb 10 2

~''''''''''1 3 1 5 6 7' 8 9 10 2 3 ' ' ' ' 'ti ' ' ' s ?"

! g FREQUENCY (HZ) lace ss onie, io<oere3 i I

c v >

. _ _ . _ . . . _ , _ _ _ _ _ _ __