ML20126C520

RO 80-17/01T:on 800326,S&W Advised That Reanalysis of Seismic Pipe Stress on Main Steam Piping Indicates That for Certain OBE conditions,long-term Criteria Allowable Stress Levels May Be Exceeded

ML20126C520
Person / Time
Site:	Beaver Valley
Issue date:	03/26/1980
From:	Werling J DUQUESNE LIGHT CO.
To:
References
NUDOCS 8004030198
Download: ML20126C520 (2)

Text

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• -w*=-=,-. (W.'t SNT 1.!CitT COMPA3fY

• *' &#aw.y Vetlev T.. wor Statton!

Tout Offica N>w 6 '

Shi re trapo r e . PA 1 *A 7 7 Wr-h 14 1980 f

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5 . . v.stt.v P w.r 5tmetaa. 1*n t e xa. t twe tr e t *:n . 91- 3 3 '. . f, t - c a , W. 0.-*.66 LEM 80_17/017 t

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• • r , 4. M. Ceter. Dire- a* of 2 9. 1stien Ltntted State, Noc te4r Re cul atery Cc= m ssion texten i All Park Avefs.se King o f Prusis i.i . Pennsylvanta 19406

Dear Mr. Grier:

In acc.ordaare w 8.th Taehn t e t 8:pec i f i e st i on 6. *8.1. 4 * , M ai t n i s t ra t t wo Cecerol=, the follawiat ia reparta4 Tht* a.orree wam .f l a c u9 a e.t w i t h t he

s. aver vn ller 'iSC 2 *s ident in spec.t ar , *f r . O, A. nee.cm.a n , a t G830 bours on W re:h 7 6, 1940.

L'*ha**r. Fnetocering The Peavne Vallev Ifnte 1 **c h i r ** t -etinee r . Staa* L racearation, haa ed s t ae-A eve that raanstve*= af the =*t=nic ptoe stregg om ensin

• • ai t 9 T.m e r het'am *

• M8E) s t a=es p t r iner, l aad l e s t a a , 'har fa' aortale % rattn*f.

c on i t t ion e , t an at -t .r* c r i t a r t s allewmhta et'*** levate ny be o ce**Ied in the headers th,a t anupare t 5. ma i n etaan enr,ey ya1.,...

rs. , , .,s - ,,i.e, ,, s ., i n . . .,, . . r . r. . v. i .,. h1 ~ .,,, io.a. ,.

vb.o tk. ,1((for cc toada co htm.d vie.b ner, =eg.... e . =cel 4. 4 in 4 err...... l are combinel. tha * <-*r pte r a<f cod

• mttew,St. etrese 1 , .. . t. of 1.23h te ewe **ded. l Sinc. nen.rer valley tra t t 1 is'=h*it dawn far r (unl inst an i ens i n t ema nc e ,

i wi th this finding, there is no pot ent i al s a f ety ha r a rd a=.ce 19e *<f D

b 3 n h L 8 004 oggk

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w , 3,81. Ceter Merch 24, 1940 sves:JAV:822 Pete 2 Remoalysts t o coo t ina: Ins f or the rena l M er o f the ma b sl e== va lve aree steme piping. We vill report any oddit tocal firdings that may result from owe ongotos artalysis. .

l Very truly yowre,

~

J. A. Verting Superintendent

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ect Director Of N n=cewent 4 Program An=1v9 ts Uetted States %4cL*er Regulatory Ceemissten Woohimston, D. C. 205 % -

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D, L. Wissrinters, MVFS t.icensing Project Meneser United States Nucleae Respaletary Commission , ,, ;, ,_

unshington, D. C. 20535 ..

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- D. A. 'Beebman,1% clear Regislatory Commisaton, MVPS Site inspector . , ,

C. A. Olsen, Secretary. Prime hrs Coweittee - Ett

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C. J. Six, PA Public Utilities Cownission " '

Marrisburg, PA -

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