ML19352A994

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Forwards Supplemental Info Re SER Outstanding Issue 8 Concerning Equipment Dynamic Qualification
ML19352A994
Person / Time
Site: Shoreham File:Long Island Lighting Company icon.png
Issue date: 05/28/1981
From: Novarro J
LONG ISLAND LIGHTING CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
SNRC-575, NUDOCS 8106020524
Download: ML19352A994 (24)


Text

'

LONG ISLAND LIGHTING COM PANY g

Mgg SHOREHAM NUCLEAR POWER STATION P.O. BOX 618, NORTH COUNTRY ROAD e WADING RIVER N.Y.11792 SNRC-575

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I T;/Q May 28, 1981 0

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9 ti j JLU!0J1981=-[3-Mr.

H. R. Denton, Director l

Office of Nuclear Reactor Regulation k h "*#' Q Qt y reet ( 72 U.S. Nuclear Regulatory Commission

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Equipment Dynamic Qualification - Supplemental Information SER Outstanding Issue No. 8 Shoreham Nuclear Power Station - Unit 1 Docket No. 50-322

Dear Mr. Denton:

Submitted herewith are ten copies of technical data to sup-plement our letter SNRC-564, dated May 15, 1981.

Four copies of this submittal are being forwarded directly to Dr. Morris Reich at Brookhaven National Laboratory, in accordance with Mr.

R.

L.

Tedesco's letter to LILCO dated January 28, 1981.

This submittal includes the following enclosures: provides the frequency analysis cf the support frame for pressure transmitter 1C61*PT006 (C61N006),

selected equipment Item 4.

A commitment to provide this calculation was made in Item 4 in Attachment II to SNRC-564. provides change pages containing revisions to Attachments II and III to SNRC-564.

Revised lines are indicated by a vertical line in the right-hand margin.

Equipment Item 4 changes reflect the determination that the pressure transmitter is a passive device.

Equipment Item 19 changes reflect the determination that the field mounting configuration description in the original sub-mittal was iw omplete.

Equipment Item 5 changes show the correct test results for this level switch in the high-frequency range.

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THIS DOCUMENT CONTAINS P00R QUAllTY PAGES

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Mr. H. R. Denton, Director May 28, 1981.

Page two The calculation summary and example computer analysis described under Item (3) in Attachment I to SNRC-564 will.be provided later.

Except for this analysis,this supplement completes cur submittal of information requested by the SQ9T team at their site visit exit interview in April, 1981.

We believe that the SQRT site review, supplemented by this and previous submittals, provides an adequate basis for closure of the issue of Shoreham equipment dynamic qualification.

Very truly yours, (q-f w

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p. P. Novarro AdProject Manager Shoreham Nuclear Power Station JFE:mc Enclosures cc:

Dr. Morris Reich Mr. J. Higgins

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ENCLOSURE 1.

Frequency analysis for-Item 4 of Attachment II to SNRC-564 Long Island Lighting Company Stone and Webster - AE-General Electric - NSSS

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// EXEC STRUDL.TIHEs2.PRINTsA. REGION 360H STRUDL 'DYHAHIC' ' INST STD H/1C41*PT006 NSSS-4 EL 79' HESSAGE '0FF' 12 UNIT INCH LBS SEC JOINT COORDINATES s3 1 0. O. & 2 5. O. & 3 10. O. & 4 14. D. & 5 18. D. S 84 6 19 O. S & 7 22. O. & 8 26. O. & 9 31. O. & 10 36. O.

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PRDBLEN - DYNAMIC TITLE - INST STD H/1C61.PT006 HSSS-4 EL 79 ACTIVE UNITS INCH LB RAD DEGr SEC ACTIVE STRUCTURE TYPE PLATE BENDING ACTIVE CDDRDINATE AXES XY EIGENVALUES HDDE-------EIGENVALUE-------CIRCULAR FREDtJENCY----------FR EQUENCY-------------PERIOD------/

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7.673869D 04 2.7701750 02 4.408S70D 01 2.268155D-02 3

3.882972D 05 6.2313500 02 9.9175010 01 1.008318D-02 4

7.5124560 05 8.667442D 02 1.379466D 02 7.2491800-03 5-1.297131D 06 1.1389170 03 1.8126420 02 5.516808D-03 6

1.350921D 06 1.162291D 03 1.849844D 02 5.405861D-03 7

1.799471D 06 1.343444D 03 2.134974D 02 4.683898D-03 8

2.208443D 06 1.4860830 03 2.36517SD 02 4.2280170-03 9

2.9250390 06 1.7102750 03 2.7219870 02 3.6737870-03 10 4.3339130 06 2.081805D 03 3.3132960 02 3.018143D-03 11 4.620857D 06 2.1496180 03 3.421223D 02 2.922931D-03 12 7.0797800 06 2.6607860 03 4.2347720 02 2.361402D-03 13 7.5264050 06 2.7334290 03 4.3663040 02 2.2902670-03 14 8.3517153 06 2.889933D 03 4.5994720 02 2.174163D-03 15 9.6935570 06 3.113448D 03 4.955206D 02 2.018080D-03 16 1.1877000 07 3.4463020 03 5.4849600 02 1.8231670-03 17 1.714542D 07 4.140702D 03 6.590133D 02 1.5174200-03 18 2.429423D 07 4.9289180 03 7.8446160 02 1.2747600-03 19 2.7037000 07 5.199712D 03 8.275597D 02 1.208372D-03 5.2993710 03 8.434210D 02 1.1856470-03 20-2.8083330 07 i

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-0.02264B4 0.0019101 0.0178220 39 GLOBAL

-0.0951976

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-0.0004027 51 GLOBAL 0.0088369

-0.0362796 52 GLOBAL 0.0088889

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4 GLOBAL

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GLOBAL 0.0 0.0 0.0 0.0 6

GLOBAL 0.0 0.0 0.0 0.0 7

GLOBAL 0.0019213 0.0077447 0.0101108

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GLOBAL 0.0040241 0.0242688 0.0310994

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GLOBAL 0.0051469 0.0501005 0.0513754

-G.0054995 10 GLOBAL 0.0054545 0.0780334 0.0610879

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-0.0013C3 12 GLOBAL 0.0018851 0.0064135

-0.0007767 13 GLOBAL 0.0037762 0.0062598

-0.0000318 14 GLOBAL 0.0029759 0.0042086 0.0005024 15 GLOBAL 0.0 0.0 0.0 16 GLOBAL 0.0 0.0 0.0 17 GLOBAL 0.0389333 0.0112952

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-0.0193261 19 GLOBAL 0.2062455 0.0535136

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25 GLOBAL 0.0713297 0.0288410

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28 GLOBAL 0.2926361 0.L519823

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-0.0009975 32 GLOBAL 0.1094365 0.0134276

-0.0009382 33 GLOBAL 0.1190096 0.0158271

-0.0040165 34 GLOBAL 0.1500534 0.0212105

-0.0127386 35 GLOBAL 0.2295830 0.0314881

-0.0278205 36 GLOBAL 0.2594925 0.0346138

-0.0318346 37 GLOBAL 0.3748740 0.0445497

-0.0443495 38 GLOBAL 0.5735856 0.0579565

-0.0526103 39 GLOBAL 0.8211749 0.0724992

-0.0428353 40 GLOBAL 1.0000000 0.0862147

-0.0322782 43 GLOBAL

-0.0053109

-0.0308792 44 GLOBAL

-0.0053237

-0.0226594 45 GLOBAL

-0.0053749

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-0.0054815

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-0.0054729

-0.0008145 48 GLOBAL

-0.0056878 0.0008448 49 GLOBAL

-0.0078834 0.0078126 50 GLOBAL

-0.0100042 0.0242446 51 GLOBAL

-0.0111108 0.0500917 52 GLOBAL

-0.0113844 0.0779740 l

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4 GLOBAL 0.0047619

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GLOBAL 0.0 0.0 0.0 0.0 6

GLOBAL 0.0

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GLOBAL

-0.0040212

-0.0041255 0.0016615 0.0015368 8

GLOBAL

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-0.1061723

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-0.018:083 13 GLOBAL

-0.0159661 0.0075708

-0.0145935 14 GLOBAL 0.0184954 0.0161579

-0.0004460 IS 15 GLOBAL 0.0 0.0 0.0 16 GLOBAL 0.0 0.0 0.0 16 17 GLOBAL 0.0092804 0.0104576

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-0.0475464 24 GLOBAL 0.2820691 0.2006741

-0.0303169 25 GLOBAL 0.3483356 0.1255347 0.0061519 22 26 GLOBAL 0.3364345 0.1237857 0.0160014

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27 GLOBAL 0.2631186 0.1000744 0.0305620 l

23 28 GLOBAL 0.1132270 0.0576188 0.0451797

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29 GLOBAL

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33 GLOBAL 0.5185736 0.0883800

-0.1013721 27 34 GLOBAL 0.8668876 0.1294574

-0.0650668 I

35 GLOBAL 1.0000000 0.1414176 0.0004176 2e 36 GLOBAL 0.9893537 0.1420208 0.0213160 37 GLOBAL 0.8466150 0.1288904 0.0704316 29 38 GLOBAL 0.4896182 0.0851945 0.1009464 30 39 GLOBAL

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40 GLOBAL

-0.4357859

-0.0150557 0.0797174 3'

l 43 GLOBAL

-0.0131426

-0.1069376 32 44 GLOBAL

-0.0125588

-0.0669293 45 GLOBAL

-0.0104064

-u.0311740 33 46 GLOBAL

-0.0068948

-0.0101611 1

47 GLOBAL

-0.0019589

-0.0005985 34 l

48 GLOBAL

-0.0008225

-0.0001998 35 49 GLOBAL 0.0032277

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50 GLOBAL 0.0064882

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51 GLOBAL 0.0084738

-0.0459554 37

,52 GLOBAL 0.0090187

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) = 3{d ( Oe" 0 ) &

v g.y g J c4 x s pipg d, = 2 3 7 r di-in1"

~'

~

's L = Ledqrif o/= PifE - 7.7s '

' ///, e.

G - z ('/ +,4)

=

== /to r ^ !*

.1

2. C / t a 3)

Yo k = 3u 7.7r ( 2.37Z/,73 7 ) J // O'O

- z.77ixto Y

/b Y/

~

n r

u..

Et

$== /MEZr/A te

  • To t /77 f d=kE i

7.

,-G [a 't b'] m Q = 3 6 ,

b=/2" 30 P ATE, #AI lE, AAlb h1/J7sPL/HE 5 L

G In = pioss of

/

/

/

st

-[o. ts3 x n x u. x9 -i-s 'x V 7 % +- <!* +/* m l3'} n

,[30 r4 if + /H 7 + 'f l3Pd l

36 7b *b El c 0. /f 2 Slu 4s

=

. 7 - f,f (n 'y rt ') + Y r'] r o. !9 L = al.1>8 4,

41 t

' ' f L { z.rKrio Y l Id N.

I ~

b7i y, qty 45 46

STONE & CEBSTER ENGINEEnlNG CORPOilATION CALCUL ATION SHEET A Scio O C ALCUL ATION IDENTIFICATION NUMBER f

J. O. O R W.O. N O.

DIVISION D GROUP CALCUL ATION NO.

OPTIONAL TASK CODE PAGE / O

//40002 E M.b i

NkTf2RAl AiVGO U 5AlC Y /^/

/s/-PLAA/E CX A*/b Y)

)/RE C770 N 6

7 f' d ys cMri4w&R Be#M

%x it j,.i ( p er n'

24f} p t 1 J

IS E = Soe/o# /4k '

i, l'

y=

o, a 7 ip

  • C2" n H. X &

P!/'EJ r

to s

21 g

Et m=

men of PLRTs gib RNGSE AND /AltM b

o.zt3xixx34x Vf+4.9/3]l3% + 19/ K

=

=

  • fM

[E. ! d Y + 1 94 7],l3 N

=

+

=

yr. >t 9/3 rd

+ a pj rt 30 0./92 JLu(rs 3,

=

32

.L l 3 X P XI*' ' A S 7 j yf

//E,

=

)

2W/

O.192 x 7.773 36 37 38 3,

40 48 42 43 44 45 46

1 k

I l

a l

?

I i

P 4

t i

l ENCLOSURE 2 i

Change pages to SNRC-564 Attachment II - pages 2, 7 and 8 l

t i

Attachment III - 1 page for Item 4 l

3 pages for Item 19 3 pages for Item A5 l

l l

l I

1 i O l

t i

l i

b Long Island Lighting Company i

Stone and 'lebster - AE General Electric - NSSS e

i

-,._.~.... -,_ _

c Item 1:

1H11*PNL-613 (H11P613) a)

Provide the revision of a report.

b)

Revise the SQRT foru.

RES PONSE:

a)

Revision i dated May 6,1981 of General Electric Report DP.F No. A00-992 summarizing the qualification of control roos and local panels is providcJ in Attachment V behind Tabs 1 and 2 respectively.

b)

The SQRT form has been revised as requested during the review at the dite, and included under Tab 1 of Attachment III.

Item 2:

1H21*PNL-10 (H21P010) a)

Revise the SQRT form, particularly to show welding description.

RESPONSE

a)

The SQRT form has been revised as requested during the review at the Site, and is submLtted under Tab 2 of Attachment III.

Item 3:

1H21*PNL-36 (H21P036)

()

a)

Revise the SQRT form.

RESPONSE

a)

The SQRT forms has been revised as requusted during the review at the Site, and is submitted under Tab 3 of Attachment III.

Item 4:

IC61*PT006 (C61N006) a)

Provide a calculation of support frame frequency by Stone & Webster.

RESPONSE

a)

A dynamic analysis was conducted to determine the support frame frequency of this stand with instruments attached, and is provided in Enclosure 1 to Llu00 letter SNRC-575 Results demonstrate a fundamental frequency of 40 Hz which is above the 5 Hz requirement to limit the dynamic loads on the mounted instruments to less than or equal to 2 g horizontal and 1.5 g vertical.

V 2

a

,_.,m_._

=.

t b)

A pipe stress analysis based on the design configuration has been p) t conducted on this 10 in. line, using the revised model of this operator referenced in (a) above.

Results show 2.9 horizontal and 3.0 g's vertical accelerstions acting at the operator center-of-gravity f rom combined seismic and hydrodyamic load.

Confitmation of the 11atting acceleration (g) values for the as-built configuration will be provided after their as-built piping review is completed, as indicated in Item 5 of Attachment I.

c)

The vendor designed this operator to 3.0 E's horizontal and vertical accelerations acting at the center of gravity of the operator with

- a-1.3 minimum factor of safety on stress.

Since these accelerations including the factor of safety are above tha required accelerations noted in (b) above, the adequacy of the actuator to withstand combined seismic and hydrodynamic loads is established.

d)

No additional information of operability testing of this actuatar is available. As shown in the vendor's report, the relative dis-placement between actuator stem and valve frame is 28 mils. Since the clearance provided is 111 mils, operability is assured for a combined seismic and hydrodynamic environment.

e)

The SQRT form has been revised as requested during the review at the Site, and is submitted under Tab 18 of Attachment III.

f)

Information concerning the support of instrument lines is provided 4

in Item (3) of Attachment I.

Item 19:

1R23*T-102 a)

Provide the mounting configuration (which could not be inspected during the visit due to the integrated flush activities).

b)

Revise the SQRT form, particularly to note the frequencies of the several componente, j

RESPONSE

a)

The mounting information will be added to the SQRT form after its deenergization makes it accessible for inspection.

l b)

With tae exceptior :.oentified in (a) above, the SQRT form has been revised as requested during the review at the Site including the frequency range, and is submitted under Tab 19 of Attachment III.

As discussed in Item 12(e), the frequency of any components is not measured in a multi-frequency test.

O 7

j Item 20:

IM50* PNL-04 a)

Revise the SQRT form, particularly to indicate the weight and the frequency range.

RES PONSE:

a)

The SQRT fora has been revisad as requested during the review at the Site, including the weight and the frequency range covered by the test, and is submitted under Tab 20 of Attachment III.

Item 21:

1H11-PNL-SNP This item was dropped because it is not safety-related.

Additional Item 2: IB21*PS020 (B21N015) a)

Provide information by Stone & Webster concerning the support of small tubing.

RES PONSE:

a)

This information is provided in Item (3) of Attachment I.

Additional item 5:

IC11*LSO95 (C11N013)

()

a)

Provide an evaluation of the safety significance of contact chatter.

RESPONSE

a)

The test results for this pipe-mounted level switch show malfunction (onset of chatter) limits of 1. 2 g's horizontal and 9.5 vertical for frequencies below 30 Hz.

Additional testing above 30 Hz showed an anomaly at 50 Hz where the onset of chatter began at 0.26 g.

The piping analysis gives accelerations including all modal contributions equal to 1.0 g's horizontal and.8 g's vertical, as shown by an SRSS of modal accelerations. The contribution above 30Hz is less than.lg.

Hence, this evaluation demonstrates that the level switch can withstand the Shoreham dynamic c,vironment from combined seismic and hydrodynamic

~

loads, without reaching unacceptable chatter.

Additional Items 6 and 7:

1E51*RV145 and 1E51*RV149 a)

Revise SQRT form, particularly to indicate the natural frequency of the internal components, b)

Either confirm that no chatter occurs or provide an evaluation of the safety significance of chatter.

c)

Correct the drawing to show the actual set pressure.

()

(_ /

i I

8

QUALIFICATION

SUMMARY

AND EVALUATION n

1.

Component Name Pressure Transmitter

,n 2.

Mark Numbers 1C61*PT-CC6 (1C61'!CC6)

'()

3.

Qualification Documentation A.

Qualification Summary of Equipment (SQRT form), including required response spectra if applicable.

Enclosed B.

Reference Documents in the Central File Package Reference Document Revision Number Identificatien cr.Date Organization / Title / Subject (1)

DV163Cll8o,d440 J/>/7" GE Design Record-File (2) 11600.02-NM(3)-237 1/20/c0 SH1-343 Instrument Stands l

l C.

Additional Supporting Documents not in the Central File Package Document Revision ID No.

or Date Organization / Title /Subj ect i

('Im

\\

SNRC-535 March 5, 1981 LILCO Seismic Qualification Review - response 1

to Request for Additional Informatien, l

Response 271.4 l

1C61N006 Dosi n Specification l

C 4.

Shoreham Requirements (dynamic loads, functional requirements)

The pressure transmitter is part of the reactor plant remote chut down cystem and measures P.D. for remote indication of RPV vater level during the hot I

l standby and cold chut down conditions.

It must be capable of operation l

before, during and after a combination of hydrodynanic loads and seismic faulted loads of 2 g horizontal and 1.5g vertical. (Ref 3.B.2),

5.

Demonstrated Capability (from qualification report)

The qu11ification test report (Ref 3.B.1) shows that the pressure transmitter l

perfortas its intended function before, during and after exposure to th?

required seismic loads and demonstrates an adequate margin of capability by performing its required functions up to the following (fragility) sciemic l

loads: 5.5g horizontal and 3.7g vertical.

l O

V 1

6.}Rati'onnlofcrQutlificaticn SH1-95 c.

Appr:ach (cnslysis, test, both)

The 4P.0-4160V Tranrfon er dus 1 van Je?.jected to tir uitancous horizontal ard vertical inputs of phase coherent rindon multi-fremoney notion in the FB/V and

[)

53/V directions. The arp11tude ni e tch frequency a n'djusted through the use

\\'

of n unveforn cyrthesizer unti; the tant response ctrum cr.vcloped the r equi rec response spectrum over the frecuc cy ronge of the ! !!z. to 100 Hz.

b.

Response to Loads (including high-frequency considerations)

As noted in Ref. 3.B.2, Section R-09402, page 4, the 480-4160V irar.sfon,cr Bus 1 demoastrated suf ficient structural integrity to withstand the prescribed random multi-frequency test. The results of the frequency sweep tests identified the predouinant natural f requencies in the orthogenal directions to be (Ref. 3.B.2, Section R-09402, page 4), 5.5 Hz for F3/V excitation and 8.5 !!z for SS/V excitation.

l

.j ~s c.

Operability

( )

The 480 4160V Transformer Bus I was monitored during the test to determine electrical operability.

In addition, a hi-pot test of I ainute at 8 millinmperes and a egohmet test at 500 V DC w.ere performed before and af ter the saa smic test.

The tests denonstrated that the elcetrical furetion of the 480 4160V Transformer Bus I was not compromised as noted in Ref. 3.B.2, Section R-09402, page 4 d.

Field vs Qualification Mounting It is presumed that the field wounting is comparaole to the qualification mounting. Verification will be made when this unit is accessible for inspection (DEENERGIZED).

Reviewer's Conclusions It is concluded that the tests performed on the 480-4160V Transformer Bus 1 natisfy and successfully meet the require m atr. foc the Shorch.in Mucicar Power Station, imit 41.

/

i Tnere were r.o st ructural, oscha,1 cal, or elect ric il failures detected during the

. -/

random multi-f requency tests.

SH1-95 BOP-in Item ( )

QUALIFICATION SUZDIARY CF EQUIPMENT i O I. Plant Name: SHOREHAM Tm:

'V 1.

Utility:

LILCO PWR 2.

NSSS:

GE 3.

A/E: Stone'& Webster BWR 4 MKII 4160-480V Transformer Eus 1 II. Component Name

1. Scope:

[ ] NSSS

[8] BOP

2. Vendor and Model Number: lTE Imperial Corp. Type VU-9 Quantity:

3

3. S/W Mark Nos:

1R23*T-102, -101, -103

4. If the component is a cabinet or panel, name and model No. of the devices included:

N/A 4

5. Physical Description a.

Appearance Enclosed in cabinet (floor mounted)

Cabinet b.

Dimensions 58"Dx78" Lgx90"H

c. Weight 3,900 lbs. (Transfoncer Section l Gnly)
6. Location: Building CB Elevation 25 ft.
7. Field Mounting Conditions [ ] Bolt (No.

, Size

)

[ ] Weld (Length

)

[ $ Not availa'ule for inspection until decnergi=ed.

8. a.

System in which located: 480 V Emergency Power b.

Functional

Description:

Control Circuits for Station Emergency 480 V Power c.

Is the equipment required for

[] Hot Standby [ ] Cold Shutdown

[X] Both

~ ] Neither

9. Pertinent Reference Design Specifications:

SH1-95

SH1-95 s

Item ( )

s

/N VI. If Qualification by Test, then Cor.pletch:

U 1.

[ ] Single Frequency

[X.\\] Multi-Frequency

[X] random

[ ] sine beat

[]

2.

[ ] Single Axis

[XX] Multi-Axis 3.

No. of Qualification Tests: Upset f5 Faulted > 1 Other (specify) 4.

Frequency Range:

1 - 50 Hz 5.

Natural Frequencies in Each Direction (Side /Sids, Front /Back, Vertical):

S/S = >5.5 Hz F/B = > 5. ", itz

__ y=

5.5 Hz 6.

Method of Determinfng Natural Frequencies

[XX] Lab Test

[]In-SituTest

[ ] Analysis 7.

TRS enveloping RRS using Multi-Frequency Test hXX] Yes (Attach TRS and RRS graphs)

[ ] No 8.

Input g-level Test: Upset S/S =

F/B =

V=

Faulted S/S = _ 1 4 F/B =

2.4 V=

2.4 9.

Lal, oratory Mounting:

[XhBolt (No.

4

, Size 3/4"_) [ ] W1d (Length

)[]

l 10.

Functional operability verified:

[XX] Yes

[ ] No

[ ] Not Applicable 11.

Test Results including modifications made: Meets the Spec requirements without modification 12.

Other test perfoned (such as aging or fragility test, including results):

None

  • NOTE:

If qualification by a combination of test and analysis, also complete Item VII.

/D

/

QUALIFICATION SUT!ARY AND EVALUATION 1

1.

Component Name Level Switch C

2.

Mark Numbers 1Cll5LS-035 (C1.T 13)

/h

(l 3.

Qualification Documentation A.

Qualification Summary cf Equipment (SQRT form), including required response spectra if applicable.

Enclosed B.

Reference Documents in the Central File Package Reference Document Revision Number Identification or Date Ornanization/ Title / Subject 1

DV15904361 11/25/80 GS Design Record File 2

11600.02-AX-12U-l S&W Pipe Stress Summary C.

Additional Supporting Docu=ents not in the Central File Package Document Revision ID No.

or Date Organization / Title /Subj ect

() ~

SNRC-535 March 5, 1981 LILCO Seismic Qualification Review - response (m /

to Request for Additional Information, Response 271.4 4.

Shoreham Requirements (dynamic loads, functional requirements)

The level switch is part of the control rod drive system and its function is to scram the reactor during power operation on high water level. It must be capable of operation before, during and after a cenbination of hydrodynamic and scismic faulted loads of 1.0 g horizontal and.8 g vertical (ref 3.B.2) over the frequency range of 1-30 Hz.

Above 30 Hz, based on the reference 2 pipe stress analysis, the required accelerations are less than 0.1 g's.

5.

Demonstrated Capability (from qualification report)

The qualification test report (ref 3.B.1) shows that the level switch performs its intended function before, during, mad after exposure to the required seismic loads and demonstrates an adequate margin of capability by performing its required functions up to the following (fragility) dynamic loads:

1.2 g horizontal and 9.5 vertical accelerations between 4 and 30 Hz.

A-3 scan test showed no rescuances celow 60 Hz.

A separate test was run between

/~D 30 and 1000 Hz to establish calfunction limits in the high-frequency range.

5 s#

At 50 Hz, the limit dropped to.26 g's due to contact chctter.

.._.--_q p-

C11N013 6,,Ratiinsic for Qualification c.

Approach (analysis, test, both)

The level switch was qualified by subjectLig it to single axis, single frequency I...,

vibratica tecte over a frequency range of 4-1000 11 2.

(Front to back, l

/

cide to side, and vertical).

\\

b.

Response to Loads (including high-frequency considerations)

I The icvel switch showed no structural degradation during and after testing.

4 c.

Operability

(,)

The specification requirements were met durbag and after exposure to the required dynamic loads which demonstrates that the level switch can withstand the Shoreham dynamic environment from combined seismic and hydrodynamic loads.

1 i

d.

Field vs Qualification Mounting Qualification mounting was the same as the field mcunting..(Pipe-Mounted)

Reviewer's Conclusions Based cn GS qualificatica report (ref 3.3.1),

This reviewer cencludes that the ; :"el c. witch con perform its required functicas it the precence of the 3

m) hydrodyumic ad ceicnic loads imposed by service in t,he Shoreham Nuclear

~

Power Station Unit 1.

C11N013 VI. If Qualificathen by Test, then Cocmlete*:

e)

[ X] Single Frequency

[] Multi-Frequency

[ ]rendom

(_

1.

[ ] sine beat

[]

2.

[ I] Single Axis

[] Multi-Axis 3.

No. of Qualif! ation Tests: Upset Faulted Other 1-Fragility (specifv) 4.

Frequency Range: 4-1000 Hz 5.

Natural Frequencies in Each Direction (Side / Side, Front /Back, Vertical):

l

[

S/S =

> 60 HZ F/B =

2 60 HE V=

60HZ 1

6.

Method of Determining Natural. Frequencies

}

[X)LabTest

[ ] In-Situ Test

[ ] Analysis 7.

TRS enveloping RRS using Multi-Frequency Test [ ] Yes (Attach TRS and RRS graphs)

N/A

[ ] No 8.

Input g-level Test: Upset S/S = 2.0 F/B =

1.2 V=

9.5 (4-30 Hz)

,A Faulted S/S = 2.0 F/B =-

1.2 V=

9.5 b

La90rdOOOy Sot!8tfndh w d anomaly at 50 Hz where limit dropped to.26 g).

H 9.

[] Bolt (No.

Size

)[] Weld (Length

)[X]ThreadedPioe 10.

Functional operability verified:

[ x] Yes

[ ] No

[ ] Not Applicable

)

11.

Test Results including modifications made: _ Meets spec. without j

modification J

4 l

12.

Other test performed (such as aging or fragility test, including results):

t l

Fragility - sama as Iten VI.8 l

?

i

  • NOTE:

If qualification by a combination of test and analysis, also complete

,)

Item VII.

i h

c) w f,

t

-, -..,