ML18139A469

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Responds to 800708 Discussions W/Nrc Re 800708 Response to IE Bulletin 79-14, Seismic Analysis for As-Built Safety- Related Piping Sys. Approx 294 Supports Identified to Require Installation
ML18139A469
Person / Time
Site: Surry Dominion icon.png
Issue date: 07/11/1980
From: Brown S
VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
811, IEB-79-14, NUDOCS 8007250365
Download: ML18139A469 (2)
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f,TL.ANTA, GEC'R~l/l. ~ff2.CL/

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  • .., BO JUL 15 A 9 : r5 I

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  • July 11. 1980

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  • t?S P. o* Riil l.r~ Director Off f:9 or In:spe~Ui;;in & L'lforc.em~nt

! :.-.;,.**~--~---ft~c:l~~r Reg~latGr:r tmmtsshm F-~~1t#: II

  • :SUi t1ar1etU Stntt!t. Stitte 3100

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Atl~nti. 6£.~rgia JOJOJ Dockal fto. 50-281.

ltceris* lfo. '1Fft-J7 u~~r 11T. oen.nlr:

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  • 'Thtt p'.lrp.:*1* of this l*tt~r 1s to *provt~.-,11*,,~uon '1n4 clariflQUem gf cur lt1tter cf Jl.lly s. l~JO ( Vep~ Serial ho. 591).. tl1s~ss1cn nre held

~i_t.h lff.~t!rs. O. G. ltstnht.tt. Vt11fam Russell. Coneld Jiefghb9rs and R. "* ~ten

!. tn. Sf:'t~~1!J1 cm July 6th *. As

  • nsult of these dlSCV$t1ons 1t MS fe1 t that

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  • 11~~ 1dJlttcnat 1nforne.t1,c.n '1tts naecled to clarify and a,:,p11fy our PGS1t10n$

'!ontnin~d tri the ~1.1 6th lettar. Th* folle1,fng tteu ahou14 t, "nsfdared 1n

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: *l l l ccnJun~tf <m w1'-th tbat letter:
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  • Al y(!U are tw!TI!. detatled *nelyt11 haire*trot ~en COtrJJl*ted fur ill Sl:fpor-ts en 1.£. Bw1latin 79-14 1y1tus awtslde t.h.e con-t;J1rr!f"t~t fer St.Jny Fowtr Statton Unit !. *ffOWfler *.<< haYe tdenttft.-d 1pp~xfm*tely 294 supports Whfch "* '91t!'Ye 1:"J~t ht tnsnH1!1 as p~rt of the 1.£. Sullettn 7~-14 effort.

Of.\\h.c.sff cm1.r 154 era OD Ted'lnfc.al SpRtf1cat1cn 9,Jlt.l. *.

lie have 1dtntlf1ri 76. of_ tha 154-a, lntfnt nleted to

$tr-E!I andysts of ptptn, snt~ anil ** 11tatw\\l tn evr lett.,.

~, '1wl1' e, 1-?eo.. tfl'!se wlll b1t 1M.talled pr-lcr h st4rt*t1p.. A

  • tiltal or 135 of 29-4 ~lffution p-ack.1g~ haw* ~I\\ "ce1ved

~Y V.er,~,, ef.11111 s. l:980. These~,... should h co11-slder-cd u ~fn1 1pproxlci1te onl.7,.

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lt!!! i of OUl' _,...sly Eth let.ur l!!renthmn

  • 30 d11 tcrHnfns

~r~~~!s for d!trrmlnatfon of sfvn1f1cant17 o~erttrl!Ss1d *~~ports.

!t 1s c\\?r lat.int ta construct l:Od1ffcat1cns d11rf1t9 tha 30 day str~tn1ns, p~cess etncurrent with th* tfettr'!'P'fnatlcm of wn,thtr or- ~t th, l\\!~r,t,r-t. 11 sfgntftc:antly o,erstressed ** cel ln1st.ed 1n ltn z of out-lttiar.. Ve 1ay fcrT;Q t.tte s~rtentng p~~ss 1f.

-"-f!Y ptTtod *. We t.alten thts wtll upg_rade th* s,steiu 1n an

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we t.~1 !aye ~- irt'dffluthms Qn tie 1ns~11f!d durtns the 30 -l*-.-~

. -v..pt11t1011s i,armar.

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  • We c:,n~it to platfn9 tha highest* priority on s~rts uso~f1t.ed
  • 8 O.. 12*5 0:_>:_,~1t.h 1e:chntca*t sr~ctf1cat1on syst.eu..

We lf11~ Instruct our Arct11..:

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,.Jh) t~t-Englnttrs.that these inodtft~tton pec.k1ges.a"' ta be tumecl *
  • *. 1 oyar to 1epeo no late.- than 60 days frnm the date of star-t-us,.

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. ' ri,*.4 r,ti,t er a!!!tlttcnal clatlflut.fon ** whh to ~~-1i"l1* a ~*t~l" t..~1t a,rrrl'fnl to ft.-rs cn1crle-7ke1 \\'rilen co~,,~trfng Vepcnt, 1ppro1ch t" :rl!soh,tn9 t.. t.

Ciil.J~t1r, 7il-l*1-.. - L~* t~ a lack of ort-afn*l dtltvt"tntat1on Vtp-eo. hts_ ~n unablit.....

t~ f.i!tf.n~ a c~~rh,~ of as-~11t. dnt"WfmJJ wt~ orlg1r;.a11,r de$1gN!d dr-~1ngs *-~:>

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~, *~e.ir,.tlfft£".i in th~ !tz11et1n.

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".'* :_.. V!!r,**~'* !PPrt'*tth h~~ l:*~~ *to dyn~~1ti11y aNly:* I.E. Svlt~t~~ 79-14.*s,r,~ : ~: f//.~

tr,_~,. 41'.'lt:rt t.Jt~:<J.g?i t.*n,* s11tr...c1 l!!tl"!I orlgtn-111.1 anal.rztd tlls.,nJ s,l;u,l*tflttd nt~~:!lit/.,

l,;;,pl1r;tt*in tf7.'.?r rt""tu*nt lfiPYtt.,h ti a f!!:~l"r'll vnna~l1"fOf1'.7s~-. ta t:rlt~r-1*:*~ 'ic,;";

r:"!.t; ht ~r.1itrrv;~ et tht "t!:r::9 vf tht cr*tghr,1 design. The prflt:fft *Fff'Otcit ls.

clt:!~1 t:r;~'~!".~ thl!t ltf'TJhrl -1,;~r~fn9 to Utt lttTn$fr.J d~r:i~ntt p,er-t.dnlr:i -~,..{.~ r::

S11rr:7... 1:, hr.ti c;~~~rn tJrh *Ffr'C'tt:?l t?tttti'St ortgtna1 (!;e-~~Utittt.HY 11,,t

.-ht~t~ :--

~ff~ f-J-~21-1,~

Cr,# af t..~f_l !fPt'elt;h also all-C"WS *1.rl1 dtyeh1~?tt ef * 'l'T')*.Uff.tat1att" f:!~~.i~t, tr 1*-r.TJrfff"'j,. tu~:t en p-ntl f!!h~117 e.tltvlattens 11hlle d1tta1ld t'tllllu11tfen rr~nr*r~,rri.. lh'l !T.'.'~11ft~Ucn fl!t-ti:.rges ar,, 111!SU11ed tn *n e~tdt Uc,as !tanner Ctr:~ ltr:r. '1!:!"rlf11rd by flMl calaalatfmu to *1s1tre t.hAt all posstbl* p.1r~un m~ r~~lfi.r..h;.

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M1t fn~~:'.!-1 t~ c.~tlrn:w et1r apr.rTJtdt* es vs Hlfeye tbal nptd urgndtr,g or -

,~ ! t~:~ f~f,"P!!'!"'.t!~ fl tJr.-r"t".:,!JJf CCrrJln4ltlY* ttJd '11J.ble Mt~Od for ~ting t-tr!

trtr-1~- r;if I.I!:. thtlh,ttn 7J- ** w, pli~n ta bu*a the requ1r~:nts or l.t. Eulletfn iS'-1~ c~pl1t,:!l1 s~ttaftlrd J?O. lat~r \\..lrtui Ctt~,,. Jl.,1950.

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-le,.,, tnaly yours.

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'Sa* t. Br"Crd. Jr.

!~nfor Vt~ f'tt11dtt"ft **,~,

Stllt.fqn £.ngtrnaerlng tnd tcpstnu:*tfcrn

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tir., Y1tt.~ Stt11o, bt~~tor

_ O.fflc~ ct' tr:-zr11~tf l:!I,1rr:J lr.ifc~t t!r. tf:rt11! ~. Centen. *ctn!'Ctcr Off it':! cf fitt::letT" 1t::1;t;r bg~lattcm * "*

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Hr. il.. H. Ferguson_

Nr. Sam C. £!rOltn, Jr..

r,;r.. H. c. Sp!!:ncer Mr. 8 *. *R. Sylvia Mr. E. A.. natn Mr. J. W.-U~djlll

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Mr~ G~ A. Hel!:!

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