ML19205A427

NRC053 - Letter from Public Service Company of New Hampshire to NRC Region I, Office of Inspection and Enforcement, Response to NRC IE Bulletin 79-02, Pipe Support Base Plate Designs Using Concrete Expansion Anchor Bolts Revision 2, Nov. 8,

ML19205A427
Person / Time
Site:	Seabrook
Issue date:	07/24/2019
From:	NRC/OGC
To:	Atomic Safety and Licensing Board Panel
SECY RAS
References
50-443-LA-2, ASLBP 17-953-02-LA-BD01, RAS 55108
Download: ML19205A427 (22)

Text

UNITED STATES OF AMERICA NUCLEAR REGULATORY COMMISSION ATOMIC SAFETY AND LICENSING BOARD In the Matter of Docket No. 50-443-LA-2 NEXTERA ENERGY SEABROOK, LLC ASLBP No. 17-953-02-LA-BD01 (Seabrook Station, Unit 1)

Hearing Exhibit Exhibit Number: NRC053 Exhibit

Title:

Letter from Public Service Company of New Hampshire to NRC Region I, Office of Inspection and Enforcement, re: Response to NRC IE Bulletin 79-02, "Pipe Support Base Plate Designs Using Concrete Expansion Anchor Bolts" Revision 2, November 8, 1979 (January 3, 1980)

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NOV 151979

£EADflOOK ::nATIOU Englnoorlng Oftlco:

20 Turnpike Rood Wostborough, MA 01£01

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• Docket llu,. 'iu-*l*H SO-,l,l4 Public Service Company of New Hampshire ATTN: Mr. W. C. Tallman President 1000 Elm St1*eet Manchester, New Hampshire 03105 Gentlemen:

Enclose~ is IE Bulletin No. 79-02, Revision 2, which requir~s action by you with regard to your power reactor facility(ies) with an operating license or a construction permit.

Should you have questions regarding this Bulletin or the actions required of you, please contact this office.

. Sincerely, r f. r--;jS,~,.  ::2 r.r.22 Grie'r ~~

('-- Di rector

Enclosures:

-~-

1. IE Bulletin No. 79-02, Revision 2

2. List of IE Bulletins Issued in the Last Six Months O CONTACT: L. E. Tripp (215-337-5282)

,c'c w/encls:

vf'John D. Haseltine, Project Manager Jr\ /'t>N) ,,: t c ~v* ~ 1r1'. i) '/ 1/ 0 B/ 80

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'.1 t{.1*:  :: , 1/ ,:;.{;l*t'  ::, l..J/'j j>' If; I; l ') f ,\J PIPE SUPl'OIH l3,'\:iE l'L/\fl: DES!lit/S l!~,rra; CCNCl!LTL I :<l',\it)[u/, ,\tltJiCi( !')L !S Description ,it Circum!,t.:111<.:0*,:

Inspt~clion (1,\~H!l'it~fh: 1.*s ,11Hi LhL1 l't!V i1}VI \Jf 1 ic1.!J)',l'l 1 l'1,i)1Jfl:1*.1 !11*/1 1 i1!,*;1ti fi1*tl St. 1VL'l 1cll ft!

areas where tlw 13ul Jt,tin intirnt 11-1*; noL b1)Pll :itli>qi1.tt1*ly ,td,i,*,,,,,,.*1! ti:,, I 1c,*n',rcs. fl~

Revision tlo. 2 ut tilt:.* [3ul ],:!tin is intended to c l.n*i tv Ui1' in'.c*11t ,1r Ull.' liul letir1 Ii::

and establish t.iw i,JRC positiuns Oil minillllllll (,ictu1*; u,I *;;if,.*Ly, ,J11CIHJ1' t)()Jt pre']uaJ, f\2 and the expected dJte of completion for certain Gul 1,_.t.in ,1ct;o1h. R:~

Since the issuance! of IE Bullet.in No. 79-02 un M.m:h 8, l'.)10, lE irbp.-!clion Rl experiencl} and many inquiriP.s from licenSt!<!S indic.1t,, that cH.!dition:,l inforna- H~

tion and clarification is nt:eded. This revi'.,ion i:, inte1iciul to *S,)J".;e that Rl purpose. None of the reciuireml}nts of the ori1Jin.1I 8ullr)tin hav1~ bt!P:1 deli..:tl:!(!, fH and the due date foi' completion of the reque'.,t,:d actions (July G, 1979) h.:i'.; Rl not been chantje<l. The t'ol lowinn text sup1.*rs,!d*!'.*, tlw L,.,:..t. ot tlui ];..:tin tJ11. /~)-0;:. Rl

'* Changes from t.tie ori~Jinal text art) identifir*! tiy Rl, R2 in the n1<1roin. !h,: purp0se f(i of this revision is to identify acceptable w;iy'::> oi satisfyinn tlw l!ullet.in Rl requirements. Rl While performing inservice inspections durinq ,1 t-1i:irc11-,\p1*i I 1973 ref~el in;J outaqe at Millstone Unit l, structural :'ailures of pipinn suppol'ts fo1* ';,1fi'ty t!quipment C, were observed by the licensee. Subsequent licPnsee inspection:, ,)f 1rnr..1ma~p~d supports showed a large percentage of the concrete anchor bolts were not tightened properly.

Deficiency reports, in accordance with 10 CFR 50.55(e), filed by Long Island Lighting Company on Shoreham Unit 1, indicate that design of base 1ilates usina rigid pldte assumptions has resulted in LJ11tfr!n~stim.:.iticn uf loods on some .:11cno1*

bolts. Initial investi~Jation indicJted that n1!1rly ~it'L p1~rcent of :.he t;as1:! 1

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plates could not be assumed to b(~have as riqid phte::,. In addition, 1*:ccnsi::e inspection of anc11or bolt install,1t.ions at Shorl.'l1c1m h~1s sho\*d1 OVl?t' 1 i:~y percent of the bolt insL1llations to be def'ici,~nt.

Vendor Inspection 1\utlits liy NflC al 1\rchit1'c~. f::H;irw,*ri11q fi:*::;, !*:.:',*' *,!w*.-,n, 1>,i,:*:

r-1n1Je of d,>>;ir;n pr,1ct.ices ,1nd *jnq.i] L,Lion j:1*,c,,,:*;1',**, *,.:1:c:1 t*,1*:,* !ll**:': , :1'.,,/*:>l for t:w llSL' ,Jt C1.>l1C)'1JlO (*>:p,11.~ ior1 ,l11CIH)l.;, Jill.' l:::l'r't'lll t ,.,., ,: . II. t:*.,. ':,.!\,,~!'/

are to1*,ilrd ~1oro 1'i(JOrrnis controls <1nd *1eriti,:;1~;.,n ,:: t!*,: i:i,'..i: '. ,: 1:: '.::,;

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tatiqlJ*) l.ti :n '~,;*.Cl.'I' dL 11}.td'J ,;l.11*,t,1nl i<1 :_. ,,, 1 1,*,,

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.J. **;*)1*r  :;11' lt,!~. 1 also sti01, l,r,,1 l'.'ClP dyn,i:nic luilur*es at 1ot1d.'. t1,*lu..i L/11* t,.;lt ,*..  :,. c1;).1..:1l1,*,

due to ju i r;t ~- l i )Jp,iqe.

In the ,., ...,i,*w ,)f :rncrrn,* bolt. installation pr.11:tic,_.;, U1r,,, t'.,cilir.:,:,; (r1.<\;11;,1 Oud1Hi 1\l'llolll, rnd Li111111tir) have been identitied ,,nich w:t' t.>,\f;,liL,i1J11 .:incrw1* h(*lts in concr1*te til,ick walls to ,lt.tJch Seismic C.it,*qury I p1p111*.: ,,u,,p,irt*,. f,,'.,Linq results of anclwr bolts in concrt>te block \v,11 ls pel'fo.-n11 d at. rr*H indic,1LP *,iqni- 1 ficantly luw,~r ultimate c,ipa(ities th~rn fo1* Llw*;i_* in concr1!L1*. 1\n Info1*m:it.ion Notice wi 11 ~,e i'.;SlH'd which provides addition,11 <frJt.:ii Is on Lhe d*!ficiencies identitii?d .:.it f1*oj.111.

In the revi,*1., of respons,~s to the Bulletin, 1,1! hJve becu:iw 11*1Jr',j tll'1t lice11:;1.!1~s ,_

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may not h,we included revi,~w of .piping supptJl'b with concn1 l1~ e.<p.rnsion J11cho1*  !<:~

bolts whict1 did not us1~ base plJtes. Such Sl:pport.s UStJ sLructur:1! steel 1;ie111tH?li It:

(<111<Jle 01* ch,rnnel) attached directly to t.11e concrut,i t)y l'.Xp,11hi,rn .rnr.hor !Jolts, R2 with the pipinq <1ttached to the structur.:il sle1:l membl)I'. flw Jtlequc1r.v ot t11e H2 anchor bolt deSi\Jn .:ind installation should be v1:ri fie-:J to ,,,1tisfy the ir.tent of R2 the Bulletin. R2

,, Action to be Taken by Licensees and Permit Hold1~r'..>:

This Bul lnlin Jddresses thos..:! pipe support b.1s1? plates that tJSJ cr;:,c1*1}trl t!xpansion Rl anchor bolls in Seismic Category I systems as 1.!nti1wcl by R1~,:ul,1tor:.i t,uirJe l.2'J, 11 Se i s mi c Des i tJ n Cl ass i f i cat i on" Rev i s , on 1, dated Au !'JU s t 19 73 or ,1 s Jet i nfi d i n the applicable FSAR. For older plants where Seismic Cateqo1*y I ,*equirr:ments did 1n not ,?xist at the time of licensing it must be shmm that pipinq support; tor Rl safety related systems, as defined in the Final Safety J\naly~;i'.i Rq,c1*t, r.ieet '.11 i\ ~

design requirements. ru The revision is not intended to penalize licensees who hnve Already completed some Rl of the Bu*11 et in requirements. In those ins Lances in which a l i C,!iLee has ccm- fil pleted action on a specific item and the Bulletin revision p:'O';id*l'., :r.or*r~ cons,~,- '<l vat i v e q u i d an c P , the l i c ens e e sh o u l d exp l a i 11 th(} ,, de qua c y 0 r ttw I c t. i on J l ready ?l performed. It should be reiterated that the purriose of tile Gui l1~Li11 .1cLions fll are to assu1*r1 operabi I ity of Seismic Cate1Jory I ;iipin~J Sf~tcrr,s in t:-ie e*1i::nt of ;*  :!J seismic event. fll

1. Ve,*i fy li1;1t pipr. support bu'.ie plat.t! fle:,it;i l i ~./ \*1.is :icc::j,:11~***.J :er ir, t.11,~ c.1!-

cu1.:itio11 of ,rnchor bolt loads. In lieu of ,;:,;,portinq .-1::.il*,*,i*. j *. *.,tir;i:.q t.l;i> a~,'.;uinptiun of ritjidity, t!H? base pl;1t1!*~ ',!l(JtJld !w c,ii.;:i,1,*1**!1: *lr:.,i:Jlf' i:

t.!1r! 1m*.ti ff0111*d distanc,~ tJt!Ll*l*'t'n tile ri:,,;1:ti,*r ,,..J,:,*d \,1 U:-* ,:: ,*., *11:,: ,,,.,, :.-;,*

uf U1t_1 ti.i*:,e pldte is Urt:Jter t.h,w twin*'""" i .,., .... ,., ,.:., ;*: ,: ...  :~ i'. f, !

,*1!CO<Jr1i.'.**d t*1...1t tt1is critn1*ion is co11'.,,!r 1 ,ti.,*. I,:'.::. ::,.:: ,,::*, 1: :.,,. *:.::-.*,jt,-

1 anc,* ,:rit,Jri,1 illW,l t>e juslified and till' jw.1,i:i,*c1t.11J*1 >>.:.;*,i*,~ ,; :*, :>1:",

o: t.lw 1;*sp,H1*:.. ttJ tile 8ull0t.i:1.

_1 If th* t),1,** ;;J.1*.,~ !', ,:,*'.,*r"*.':*< :, :;*

fle<.it;l1!, th,*11 rec.ilculaLe the bolt lu,1.1, w.::*-1 .1;1 .*;J:;: ;.:*'i~* :,*1*. i'  !

I: P*J**.*,it,I", U1i*. j,. to lw dn111* pt*iot* 111 t, 'ir.q ,11 , .. , * *, :. :*

l c1 lcul.tt<*tl Lt)!'.. lli,tds ,11*u l'PfL*rn~d t,J f*t*1*,, 1: ',*:* .,,, \r:,* r; ,,;*1 *r, . :*

1\ tJ,*,.,:1*i1,t.i"11 ol thr.* <111;1lyt ir:11 lllPdt*l u*., .. , !,1 *:**r*i :,; t:. ,' .. , . ,..

p],1\.1* :J,,,i:,1!it1 i'., ,ICCIHJl11.t*d tu!' i11 t..111* .1i.'.1i.i!1,,1 r I'  :.,,*:. ,,.;*

i*; tel : 1 1.* s1;t,:*1itt.e:d with /!JUI' l'f.>Sj)OllSt.1 ~.) *,::;: :~.li**L::1.

[ ilC l v~l, 1'1! I' It h.*1\ tP\ 1; ,1utr*d t.hdt th.- l:ct'.11d:1l !(JI' ,:11'*,*:i~:1! ,*, '1*

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• 1 ** ~.'..:'t! rn flexibi 1 it/ '.*Jt' s;1:n1! t.ici I iti .. *, ,*.,tr:11,!, !,.**,n*,:1 '.~:,* ,;1,l l,**1:* **;: *1..:r**: :.:;:,*  ;~ L fr,lr.tl' of ,./1!1:i ,,, 1 ..1/0. F1)1' t.ll0',1! f.tcii i~i,**i Ii))' ',,/:It I, ,') Ll .. 'J' :i, ;l 1

• 1 testinq p;*,,qr.1m is r0.quit'L'd (i.1!., *;ut:i.:ic1*.t i11: ,~1,i':t1:i.,*1,t1Lii:11 ,l.:;11:, 110t .,.

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exist), t.111' .111ct10r bolt Li!*;Linq proq1*.i1;1 s/iol.ld ::,it. l.t> ,kl,r/P,:.

2. Verify t.11.it. th,~ concrL,t.e 1 \p,111sion ancho1* ti,lll** l1,t'J1* t.11,! /tJll,,,1:r,q :ninimu:n 1

factor nf *,.1f'l*ty bet1-1een tlh! bolt. dnsiqn lo.id .tnd t.h*! liolt. ,111.i;n.;L,! ,;1p,1-city clet1!rrnined frorn st.1t.ic Jo,1d t.ust.s (1*.q. ,rnctwr bolt.. m,1rit!t .1,.tu?*,,r's) whhicll si1111Jl<1t.e the actu.11 condit.ons ut in*;L1Jl,\l.iu11 (i.P., : .1'1' Lli co:1- 1 cretl' and I ts s Lrenqth p1*opert i es):

a. Fo111* - Fo1* wed~Je .rnd s I ,iev,~ type .rncrw1* bu 1 t.*;,

b. Fh*t! - For st1ell typ<! ,:rnct1or bolts.

The bolt 11ltimJt1: c;1p.1city should ilCC1)1mt fur t.h*! df,,r;ts u, *,i'.*!Jl'-t.,insion Hl interar.:tiun, minimum ed,1e uislancr~ ant.! pi*op,!r DolL sp.Jcin*J. Rl If tht! minimum factor of '.iilfet.y of four fut' 1-1,*dq,1 type unc!1.ir '.)olts c1nd Rl five foi* shell type 11nchors can not bt~ sl11)wn tlwn 5'-1stific.Jt.i1i11 ~:Ljst b(i Hl r provided. The Bulletin factors of safr!t.Y 1... 0,*e i11t1}111.!1 d fo1' ~.h,: maximurn 1 R2 support lo,1d includinl] the SSE. The Nf\C 11.1s nnt y,!t b11r~n ;,r'cv :d,:d ,1d1!qUJtf: R2

'I justificJtion that lower tactlll's of i,Jfl't~, Jl't: ,1cc1!pt,1l1le lln ,.\ lo1HJ term H2 basis. l.m.,.er factors of safety are all01ved on ,rn int0ri1~1 b;isis by t.!h} R2 provision:; of Supplen10nt. No. 1 to IE Bulh*tin tlu. 70-02. Th! use of R2 reduced f.Jctors of ~.:ilt!ty in t11e f.1ctored lo.:id .1pprn.:,rn ct ,\Cl 3,\9-7li t1as fl2 not yr~t been accepted by th11 NRC. R2

3. Descril'.f! t.t11J Jesiqn requirement.s if e1pplic.ib'.P !01' anchor' twlL; tu .,,itt1-C.'

stand cyc1 ic loJds (e.u. seismic loJds and hiiJt1 c:,*cl11 uper.1t;;,q loc1,Js).

4. Verify fr'llm . : .xistinq QC documenL:iti,Jn that (JPsiqn 1*,>quin:ment..; !,a*11: bo::en 1

met for eJCn anc:11or bolt in the follm~inlJ areJ'.;:

(a) Cyclic loads havl~ l>1~('11 con,,id,ireu (0.q . .1r;cn,)r !,1,it. 1:r;_:J.:,jtJ i:; ,:qt:.1!

to or *Jl'l!Jt.1~r* tt1,rn b1)lt oesiqn loJd). [n U1,, c,1 ,r: ,:1 : 1;, *::H*I: t.y;,u,

• l','.,ure U1,1t it is nu* in cunt..:.ct. ,vitL U',,! t:.,:::: ,): t!h: *:::,:pu:*t pl.it,!

prior t.o 1)1*.~load t.1!'.,lin\J.

(ti) SjJ!Cifil?d ,J1?:,iq11 *;1.'.,! ,trlll l'.11'*1! l<:, cu1*1*,,:ti/  : .. :.. 1.,, .. , r,:. ;.  ;;,*,i:

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1 ,.* :1*:1! tu ,J1J:'.1t.n~,t"t*.it ,. t t,t' td,; t ;*1*1.' )tL11! :. : ~,, 1*!'l *1_c~:n-pl ist11,,1 i*., 11*.ir;q 1 ,1i:*,!c:t pul I (!.1*rbi I,! t,**,I.) ,. ;*.ul ~;J ,,1* ';:** ::,i,* ;:* 1:1 J0siqn lo:1d. l!Pcoqrl:.'.:n,; t11i., n:Pl.ilod rri.t'/ i"' diifi,~uit. dt!t' :.,, <1Cu*,*,;!,ilit; in ',Of!!l' .ir1*:1'.; ,1n .1lt1:rnativc t,:st lll!!tl id *,1:,.11 .t:.. L.irqw* Li:,11*1,; *,1,1*1 .*!

u,;ed. It torqut: t1i'.,tirHJ i:; USPd it. mu*;L ti,* *.l:1r.*111 ,illd *,.:IJ*.L1r!L 1 ,t!.;_:,: :.:-,,,:,

,1 co1*1*1:l.:tt ion ti.-*t.1'.l'*?n torque Jtltl t.1:n'.;iun ,*:<.i*~t.... if r.. 111.:1.,c'..::r*,:1*':. 1L1'...-:

fo1* t.111? ~peci!'ic !)l)lt us,*d is not. itvail,!11!,,, nr i*, nut. 11*.. ,.. ,1, tl:1!11 '.,;t,,

specific lLl ta must !),J deve l 1lped by qu.i Ii I i ,:,1 ti 11:1 :.1.*s L*_,.

Bolt te'.>L 1:-1lues of 011,1-fourt.h (-...edqe t.yp(*) 1it* orw**r'ift:1 ~,l*,,!!1 t 1;p*!) ,)~ Rl b o lt u l t i m,1 t 11 c "o d c i t y rn ,, y b 11 u'., e J i n 1 i 1: u o I i 11 cl i v i ll .1,1 ; i ; c. 1 : ,.. u 1.) t. ..! d r, ,: l L in design loads where the test value can l.J,, sno'.*,n t.o tJt! co1:*;(!1"1.iLiVl!. Rl The p11rpose of Bulletin rlo. 79-02 .1nd U1is r,!vi:;i(ln i,J r.:) .1*:,,:1J:'e tt1,) rn operability of each seismii: Cat.e\Jory I pipi1h/ ,;y*;l.1'rn. In ,111 Cil'.;es an Rl evalu,1tion to confirm syst1)m oper.:ibility must ti,, p1?1'fol'11:,q!. It,~ b,1:;e plate Rl or anct10r trnlt tailure t'at.e is identiri,id .1t one unit of <l multi-unit sit.2 rn

( . which threat1~ns oporJbility of safety rnL1L1!cl pipinrJ syst0."1~, of thc1t unit, IU continued operatii5n of t11e n1mainih\J unit!; ;:it th:it sifo r;1ust'b1} i01111P.diate1:; R;:

r evaluated and reported to the NRC. The evaluation must consider Lh2 generic Rl

't applicability of the identified failures. Hl Appendix A describes t.;.,o sampling methods for testin9 Lh.Jt CJn be US('d. Rl Other sampling methods may be used but must be justifid. Those options R~

may be selected on a system by system basis. 1<1 Justification for omitting certain bolts fi'om sample tesr.inq *,;hich :ire in high radiation areas during an outage must b11 bJscd on ot!ll:'J' 1,f~stin~J er 1\11...

C analysis which substantiates operability of the affected syst0m. Rl Bolts 1-,tl i ch a re found during the testing p rog rac1 not to be p rt! J oaded to Rl a load equal to or greatei* than bolt desion loud must b,1 pro1:r>rly ;)re- Rl loaded or it must be sh01,m that the lack of preloadinq is not detl'ir,11.:nt.11 ii l to cyclic loading capability, Thosn lirnnsecs th.1t liav11 nr;t vc:rifie*,: anct101* r,._

' )

bolt preload are not required to qo back and ,._.stJbli:,h µ1*,1loac!. Ho~,0 10r, 1

L2 additional inform.::ition should be submitted 1-,hicri 1krnon*,t.:*at,:*~; U1e d:',~ct.s of prelodd on ttie anchor bolt ultimate capaci'..y ur~der dj:1.J:cic: !ti.J<'.i:,11.  :,1*)

' '~.

If it c.:in b() established that J tension lc,1u un ar;/ ot tlk br;i'..~ ,Jr;~*, 11ut. ,* 1

'\ .

exist. 101* all loadin() cases then no prelo.'ltl or lt*stir1c; ur tt*i: 1;,,IL i*:

required. 1, .

ff ,1nch,)r h<l)t tc*~;t. i11(J is dtJn*'

pi*i,)t' t.n r,:

r:e;1!1DJ,,: i,:11 o: '..'.,,.' *,: 11 *,,,

l*,11 tJ,1s1* pl<1'..c* 1 li:*.dl;i I it::, LllL' !H;lt , ... , , , , '*.1 , '*. , ... ,..... , ,:. , .. *, ,*, *

tht> 01*iqi11.1: calcul,1t,)d bolt L~ad. F*'r :.,:itinq ;J:Jt'}JV,,:, : .. ,.'. . . . . . :. ,,:

us,:d to 1.:011*r*1"J,1tht!lJ* Pst.irn.1t,! t.h1.: pu'..,:::Li ,; :11,T,:1*.,, *:: v,* .. ....... ' *.l l>ull lu:1.J tl.,,.* '.c> ,JiJS,* DL1L,? fiP,iDilit/. ,~i~**!' ::o::;i;l *'.i:*: 1,' *.*,.**n, wOt'k 1~11 ~Ii,* [l,hl' p] ,H.1! i thi-: C:OflSt. 1"/.ll i '. ::; , ; . '..!*.,:-," l :c: ,,: *. , , '- :,,. :*:

• 1

[nclr,,,:1,_. ;

~ ' I ' ,'

,t' Fcll' [J,l',t) p,,tl,* ,1;1,1,,,rt*; 11*.;i11,; \)*.P,lll.,ion ,!l,(1Hll :)*,:: 11;,,*.'. :*'()l!I Li!*' in sup1,l1rtin1: ,,1;rr,1c" *,,ith qrout ~,l.1c1.*d un,! .. ,* t.l\li ti.:'.,*' pl.it.,..>, *,11* L,*.,t.inq :n.

J>lll'pOSl'!; it must bl! vr:rifiecl th,lt ]p*;r*li1:tj :illL*, \',l!l't' :1,Jl w,,*,l. rr 11:velin(J RL 111,ts w2r" Wd)d, thl!n thl.I ~:ust !lti b,1cL1:d <,tf '.;uch tll.1t t.hc*'/ .ir,* not in Rl c1rnL1ct 1,itt1 tt1e l)use pl,.1te beftir,~ cip1,l;i11\J IJ*11'.iio11 ur LJl'fltl<' Lest.iriq. In 8ulletin llo. 7 1J-112 rN~uires *,eritic.:iti<:,11 IY/ inspr~ct.hn t.l1,1t :loll.', .u*e Iii pl'L1pe1*ly inst.:ill,*d ,.1nJ .:11*0 of t11e specified si1.1) and typ,!. F,11*,1:net.*!l'S fd hhicti slwulrl be inclucfoJ .:ire emb,~dmc*nt <lt!pt.ll, thre,1d t!ll\F1<J*!1Wllt, pl.1Lv IU bolt hLllt.> :;i.'.tJ, bolt. sp,1ci11g, edne distance to th,~ siu,) ot l co1;c1*1:L1) ,n nn'mber and tull e:<pansitlll of the st1,!ll tor sl11!ll Lyp,} ,.11.,::w1* !Jolt:;. ra If pipinq systems 2 1/2-inch in diunH.'ter or J,.'ss *.,1*1*0 co,n;.~i:,!1' .rnaly:e.J '1 l 1, k tt1en tlwy must be treat,.*d t.ho s,1me as tn,i l,ir*q1*r p1p1nq. [; :1 cl11r* 1* i*! l J11illysis r.wt110d 1vas used ,,nd this method can l>1.i sl1c1m to hr* lii<Jlil:1 c0n- 1n serv<1tive, Ltwn tlH? pl'oper installJtion nl the ti.1s.-J pl.1t.,J :11.d .c111t:l1n1* bolts Rl should be verified by .:i samplinn inspecti1)n. fhe pc1r,1metl*1*,, i11:::1!ct,2d In should include those described in t!l,~ pr,icedinu p,11'J\Jr'uµil. !t s~,:.111 In diameter piping is not insp1:cted, then justi1 ic,1tio11 of systl'm opera!Ji l ity R.~

must be provided. Rl

' I. 5. Oetermine the extl'.!nt that exp;rnsio11 anch()r bolL w*~r,~ u*:,(*d in concrute block f(2 (masonry) 1val ls to attach piping suppor':r, in S,~i':.;mic C.1t1i,;o:*y 1 systems (vr R2 safety related systems as d,~finocJ by f{evir,ion 1 1)f IE 8ull1:tir, No. 7'J-02). R2 If expansion anchor bolts were used in concret,1 DltlCk vi.ills: R2

a. Provide a list of the systems invo1'11id, *,1ith t.111:! m.:n:be:r ,1!' suppor*ts, ,q2 type of anchor bolt, line size, and *,.;t1ett1er th1~se st;ppol'ts ar(~ Jcces- R2 C*

sible during normal plant operation. R2

b. Describe in detJ i 1 any design cons i de ration used to account for R2 this type of installation. R2

c. Provicie a detailed evaluation of th(? cJpability of the s1ipports, R2 including the anchor bolts, and block wall to meet the ~esign R2 loads. The evaluation must descritl! how the Jl lc.w~ble 1Jaas on anchor R2 bolts in concrete block w,1lls 'dere 1Jt!t21*mincd ,.1r~d al'.;o ,,.,t~.1t 1n.1lytical R,.?

method *,.;as used to determine t!le int.r*qrit.y of the lJlc.ck *..i::l1s LJr,di~r t11e i1:1posr1d loads. Also describe t,t1r! .Jcccptance critC.'rir1, ;;)(.111~:in'.) t!H!

nwnericJl values, used to pel'fo1*~. tnis *:!Valu.:itic.n. r~1iViL!1*1 th*} dd i.:i011-cies identified in the Infnrrn,:1tinn r:citice on th** p~ 1:1! ~u;,r;0rL ,1nd n,ills i~2

,it TrrJj 111 t,) de~.ermi1~1J if ,1 s i'.*,i: 1:* , : t1,,1t. i,,11 , :, i *. '..:, ,:,:. '/';;,,* : ,1: , : , :.;

wit11 r1..*uc11*d lv sup~,orts usirHJ 'J11,*,',rll' ~;<1Jt.*, :11 r:,r*.r* *,,,,, 1,' ic *, ,*,,i: I;,

d. 0'.~scritJe*the results of tes~in~; (.~* -,;:,::::h*)r ~;;.,i~_',  :~1 r.~1r:::**_ +._l 1 1 :)

1i_j._:.~,,

'.vi1lls ,11,d your plans :rnd .:;clH!dul*: :*,/ :1.:_. *.;1* 1.':,'!1' 11_',;,.*1.

fi. (),,t,,r"'.I:,,. t.1:i.' P.d.1*1)\. U1.1t. pip" ~t:i,;,,.,*~.**. o ; t ;' I* * ~ lI.

strucLtJl',,1 st.Pel ~;11apes i11~;te,1d of !J.Ja*: t) ;,lt t_"_,,  ; f: .. ' ' ~ I. ; ' ' ': , I , I I ,I J

\l'I

E11 C I u )\J " '.

• j *'.

1*,1v11:*w1!d mu*,l ti1.* c,,;1'.,i*;:.,!nt ,1it:1 I.ht> i:ri'.., i ,,1 1:. 1

• ; *! i,: '.*,. :r f!(*VisiGfl 1. l f 1*.*J>,lllSi,.:1 dllCl1tJ!' !Hill'., ,,,::*,, :; "*,J I, ,l, ' : *: 1*:J ,.,: . .'*!l'i ;/

Lt1at. tlw ..111u1,;1* l1olt .-ind strucl.ur.il *:t.,.-,*I .11.q.1:. i11 t.i,. ,. *,,,j*;,,11*:.~ ,*,*:****.: 1'. :.

includ(:d in t:1P ,1ctil111s 1,1*1*for1111:d to1' l!;i_, il1JIJ,.,~i11. 1 1 :*1,***,, :-. * ;11:11,*t*: 'l ')

t\ ._

cJnnot be v,q*ifiud lo h.:ive 1>0l'l1 i11cl11J1.><l ii; u,.: i211!l,,t1:1 .":Li,1:1*:,: IC

.) , Pi*oviu,* .1 l i*;t of th,~ *_;y:,t.P*n*, invol*11*il, *.,it:1 t:*,,, n,:;,.: ,*1 ,1! *;1,1,:,.) **".;,

tyµe ot dl1Cht)I' bc)]t,, lillL' ~.i.'.P, ,11111 \1l:1*t.lk1' :.11,* ,lli,(,<*!'L:. ,11*1° 1*~::,:*,-

sibll> durin(J 1101*:11c1l pldnt. op1.:1*:1tin11.

p,,

b. Prnvid,: .1 d1*t..1il< 1d ,,v,1lu,1tinn l1f tile* :,d11::11,:'/ ,it t'1* .,;11.*:,:r :11lt. ,.:,,,;i,;11 1\,.

and i11*;t.1ll,1t.io11. Ill,~ ,*v,1lu<.1Lio11 slw1ild .111d1*,..,*; t.:1,: .1.*... ,:.1:d d'*,:.:*lliu- I\,.

tion or' ln,1lh on U11.* ,lllcl10r l>olt!i. Tl1t! ,**1<1l11.1t.iu11 ,:.*n [),, IJd'..*':l *)n It' the re~;ults of pre 11iot1)i c111cl10r bolt Lt":tinq :rnd/,11* ,,n.;lysi*_; 1*1hi,:h it' subst<.111ticll*:>S oµcnbi Ii t.y of till~ at IL'Ct.\'d ~;y:,tt!lil. R2

).,

c. 011~,crilH! Ylllll' pl,111\; ,111d schc*dull! fm* .111y 1u1*th,:1* .1i::.iu11 111t,., ..:,,;;i1*:.,* Lo I, ..

,1ssure the aff1)Ctrid sy~te1w; nH!t:!t Teclrnic,11 Sp1icificat.iu1i:; op,Jr,Jbility \

r~quirements in t.h11 event ol an SSE. . R2.

r

7. For U10se licensees tlldt l1ave h.-1d 110 i:xt.P1Hlt't! uut..1,J1.?:i to fH!rfo1r:1 tr1,i testin;:i R2

'I of the inacce:,sibJt, ,111chn1* IHllt:;, t.h1) t0:,ti11q 01 ,111cl1l1l' b1)lt.:; in ,1ccc*s- R:~

sible are.:is is e;<pected to be completed by Nov0mlwr 1S, l*)?:i. ihc tustinq R2 of the inaccessible ancl10r bolts should be complL't.cd liy t.hP nr*xt \~x:.i~m~cd fl2 outage. For those 1icensees U1,1t IH1vc* l:ornpl1_*l1*d t.h11 ,111cll*)r l;olt t,1:;tinq R2 in inaccessibl(~ areas, t.he testinq in Jcrnssible ,1rr:.Js '.;houlcl continu,~ R2 as rapidly as possible, but 110 lor1ne1* than M,1rch 1, 1%0. T!,c: Jn,1ly*;is R2 for the Bulletin items coverirHJ base pl.:it1J fkxibilit.; ,.rnd :-,1c'..ors of R2 C safety should. be completed by November .S, l'J79. Provide J schedult> i~2 that details the completion dates !'or If. llull,itin No. ?<J-02, f~*; 1isicn 2, 1 R2 i terns 1, 2, and 4. R2

8. Maintain documentation oi any sampli11q i:1*qwct.iun or .11ll:!101' :)ul',s n:l~uired R:~

p*)

by item 4 on site an<J avail:iblti tur NliC i:1*,Jlt'l:ti,111. ,\i l holder*s :)I ,\(.

operating licenses for p1)\1l'l' n°,1ct.or r',1.:iiiti, 1 ~, n11 ri~qur**_;t.p,1 :.n ct:mpltJte  !~2 items 5, 6, and 7 witt1in Jil d,'l',".i ot L:11' ,!,1t,* ,\I i*;.,u.1n.:,: l1f !,,i 1is'.011 ilo. 2. 1 Alsc describe .1ny in*.,L111cc*s 111)l p1*,*11io11*,:*., 1**;it,r*t,*t!, ;11 ,-.l1ic:1 ;nll; did not rnei:t th,: rev i scd ~ i~'.'.) s,*c t. i llrl:; 11 t i :.,*rn, ,' .1:1d .\ 111d, if 11,*c,:,, wy. :,'l)Uf plans ,ind scl1edul!i lllr' r1,s,1l11t.i,l11. 11,, 1,.;i*t ;:: 1,1*1t.:r.,1 *..,itl:in :),, d,-,y*; ,)f t.n,}

dJte of this r1 visio11 i*;su,11ll*t', tn t:;,* [)i:*,,,::.11* :1: t:.,* ,:i!\ll.)!,*'i,1tr.* f~*:(1iondl 1

Cf f i C (' CO 111 p l 1~ t i () I) 0 t .'I () l) l' I' p V i I." . f I l I' le. I. : . I) I) l \ t. *, ' '

I I ' : ' * :: I: i t ,: I ' '.l ; ; :: ~. 1 report. is to lw *;u1,111itt,,t1 ti; llll ,.1-i:.;1l,*t .. . . .. ,,:* , *\  ;,:;1. ,:'.'/  :~:  :~ '

.., I Jl;llr J'PpOt't(~,) *,llnt:ld ,., ',i'l\t tP t'.*,* ! i',*1:  : t 1 1* ,'!I' 1*~*)}', I,,

C,;r,mic,si0n, Utfit:** ,)f lri p,.,:t.:,,11 .,:111: i*,1*,, ,., . ,  :'. .: * ,C'. ,:* "I

~\ .

Cr,,:ratio11:, l:1>j'i*ct:,) 1l, \~.1*,l1i::ql,J1r, ,; I, ** ,** . . . ;  :**<*, 1 1 I

,\ 1

r*:11ts 1:u r,,:t. 1;,*,*c. iud*.' 1:,11* Sl,li* I; t:,t" r. l!* ;,. r**':. **.,*r-:*.. ,.,

• epnrt. .l'., .,*.:. !111*tl1 ;n t.:,,, r,*q1il.,t.i,11,*. ,*

'J' ,\I; hold,*!', t1I c,111*,tr'11ct.ie111 111*1111it*, '1,** ,.,,. I,' ' I

,*11 t:i ('..)r;.pl,*tl' i t,**11*. ,, p;d *i t,)J' lfl .t 1 i J,.,: :,;; ..

1! 111 ,,J 1

I , ,lJ tll\ 1* 111 f{t 1J I', 11111 fl11 1 I, I <:'

Encl c: *, t, :'*! .- J.

( ,*,  ; I I,

' ' fl been in~;tJlled, document your action to

i

;c,1J1'1: t11:1l it,*::i*. l t.!1,-.,'.: ., ,, *11ill tJ1J satisified. Maint.:iin dccumentation of UH!S*, .3ctio11*, ,111 *,i:.,) cJ *.\i i ul,i fr,r NRC inspection. Report in 1-1riting 1vithin GO dr1y*: l)f d.tt.1.' ;)f *,j,;J110: iii lievision No. 2, to the Dfrector of the appropri.:1te Nl<C i<c*qiun.11 0 r*:ce, c,1:11~

pletion of your review and describe any instances not p1*1)vi1>11:,ly 1*1,;JortPd, in *,.;hicti you did not meet the rf1vised (R2) sections ot it.r>111::, 2 .rnd .\ and, if n1!cessary, your plans and schedule for 1*esolution. A copy of *;ow* 1'*:pol't l,,_

l?

st1ould be sent to the United States Nuc;p,11* Regulatory Cu111:i1i*,*-,iu,1, Office I~?.

of Inspection and Enforcement, Division uf Reacto1* ConsLl'llcLi,in lr.'..>lJCCti:J:i,

')C\

i\ ._:_

Washington, D.C. 20~55. R2 Approved by GAO (R0072); clearance expires 7/31/80. Appr1w..il 1-1<1\ *Jiv1in u:,cie:r a blanket cl1)arance specifically for identified \jenel'ic probic*ms.

[nc 1U'..tJf'i! I! i, I,' I ' 1,1.

( I ,' t

*'I,,

I\Pf'UHJIX *\

S,\MPL J Nt; MF. 1HODS It1Jm 4 ot tllis Gulletin st.1ll'S th,lt. for ,rnclw1* l)l)lt t.<*~;LirHJ p11r;>1i*~*"; .-i .. wpli::q proqr;im is acceptabl1J. h,o s,1mpling metlwds .11'1! llhcus'.;r*d t* .. 1111,,, tiuL vU:,}r methods may be used if justified.

a. Test one bolt on each plate as origin,1lly r'1!cum11wn,.lcd in Bull,~t.in ~I, /')-(J:!.

If the tQs t fails, <.1 l: ;ther bo 1 ts on th;1 L li.1 S*) p l:1 te *~twu I ti ht! :; i ;:11 1.i 1' l *;

tQsted. ,\ hiuh faillwe rate should be th,~ basis to1' iric***:<1*,,q! t,);ti11u.

b. Randomly select and test a statistical sampl*! ,)f th*~ b,)lt*; t.u provid*J ,) SIS percent confidence level that less than 5 porcont (lt'f1:!c,.i*1i> ,111clwrs Jt'*1 installed in any one seismic CJtPgory I system. Tlw ::,arnplin:J progr.:;1:1 should be done on a system by system basis.

u::.rrnG OF IE llULLUUh

[':,'ilJEO IN LAST SIX MO/HHS 8ul let in No.

79-10 Requ,1lific,1tion Tr~1,ning S/llF/9 1\ l! fl(hlo*l' i(PilC LOl' Program St~1tistics I .1 c i I i L i t! s \vi Lh J fl OL 79-11 Faulty Overcurrrnt Trip 5/22/79 All Po~er Reactor Device in Circuit Breakers Facilitil~S 1,;ith an for EnqinePred Safety OL or Cl'

~ Systems 79-12 Short Period Scrams at 5/31/79 1\ l l GE f3'.*fl< F.1 c i 1i ties

, .. B\1R Facilities *,.;i th cm OL

,- 79-0lA Environmental Qualification 6/6/79 All Power Reactor of Class lE Equipment Facilities wit.h an

'! (Deficiencies in the Envi- OL or CP ronmental Qualification of ASCO Solenoid Valves) 79-02 Pipe Support Dase Plate 6/21/79 All Power Reactor (Rev 1) Design Using Concrete Facilities witll an OL Expansion Anchor Bolts or Cfl C

e 79-13 Cracking in Feedwater 6/25/79 Ai 1 P\*iR s *,ri th Jn System Piping OL (for r\ction),

1\ 11 Other Power Redctor Facilities with an OL or CP (For information) 79-14 Seismic Analysis for 7/2/79 ~11 P1~er ReJctor As-Built SAfety Related f 1 c i 1 i t i e ci *,,, i th rn Piµinq Systems Dt. c,* CP

,f. \ 11 Encl o*,lJI',! [:II:

L!Sl!NG OF IE l3Ul.1.Elltr; 1s.)urn 111 LNi r s r:< MON ms (ccrn UH;rn >

Bull et in Suuject Date L.sued No.

79-15 DeL'P Dratt Pump Defi- 7/11/79 t, I J P<Jl*,,*r R.:*,1Clc.l' ciencies ftci\it.!<!,-, 1-1iU1 .;ll OL or* CP 79-14 Same ritle Js 79-14 7/18/79 (Revision 1)

Vit.Jl 1\rea Access Corr 7/30/79 /11 J Hol1Jt.>rs of J1;.:l trols 1'\r,p 1 i cc1n V, for ~eJc tor OperJLiny Licenses 79-17 Pipe Cracks in Stagnant 7/26/79 ,\ 11 P\*IR Po1:1? r Re actor Borated \"'1lrJr Systems Fqcil_ities ',<Ji~h an OL at P~/H P1ants 79-05C&06C Nucl~ar lncid~Jnt at 7/26/7') /111 P\'IH ,>o*..ier

'1 Three Mile Island - Re,1d1Jr i=.ic i l i ~ i f?S Supplement wit11 an DL 79-18 Audibility Problems 3/7/79 Al 1 Pn~er ~eactor Encountered on Evacuation Fii c i I i ti t1 s w i ti, an QL 79-19 Packaging Low-Level 8/10/79 A1 l fio\*11~r and 1<e-C Radioactive Waste for  :.,e;1rch i11:c:icto1"5 ',<Ji th Transport and Burial OL, all Fuel F,]cilities (c*xcept ur.::inium Mills),

ond cert.-tin Materi,:1ls Licens~0s 79-20 Same Title as 70-19 8/13/79 C1!rt,1 in '*hte:r i .1: s L l C 0 11 ~: (~ ~! S 79-21 Temp~rature Effects on 8/13/79 ,\ 11 PtJ',*,t r K,?Jc:t,:r 1

Level Measurements F,l C j I j l i I? S I'/ ; t h rl :1 OL 01* CP

I: nc I u*,::r,*

• u:,rira~ or IE :i:JLLETIW, l'..i'.il;!:D rri L1\ST sr:*: MO~ITHS (COUI IrlULl);

Bulletin Date I ss,,ed J '., *.* l:'" j l ()

No.

79-14 SJme Title as 79-14 8/1 ~/;,9 (Supplement) 79-02 s~me Title as 79-02 8/20/79 S,llW ,15 79-02 ( ll1*v 1)

( Rev 1 )

(Supplement No. l )

• e,,

r '

79-13 Cr'Jckinq in Feedwater 8/30/79  ;\ I 1 Ut: '.i i ,, na t e d (Rev 1) System Piping 1\pplicJ11t.s tor OL 79-22 Possi~le Leakage of Tubes 9/5/79 [ ..1ch Lice:1~0e who of Tritium Gas Used in Recei1es Tubes of r* Timepieces for Luminosity- frjtium Gds in Timepi,1ces for

/'

Lunii nos i ty

'1 79-14 Same as Title 79-14 9/7/79 Same as 79-,4 (Supplement No. 2) 79-23 Potential Failure of 9/12/79 All Pcw~r Reactor Emergency Diesel Generator Facilities v1it:1 Jn

(' Field Exciter Transformer OL or CP 79-24 Frozen Lines 9/27/79 All Power Reactor F.1cilities which have eilher OLs of CPs Jnd are in late stage of construction 79-13 Cracking in Feedwater System 10/17/79 All f>WRs with an OL anu (Rev. 2) Piping D0:;iqn:1t12d Appl ic:inv: (~c:*

11.:t.i,i1l), 1\ll ut.ti1,r f'c1*,,,r' li1'JC \.. ::* f,:iC i] it. i t'S *.,; L!1 ,11~

UL or Cf> ,tor lntor:n.:,tior.)

Enclosure ;:, IL Hu l i e t i ; , ;i I) . 7':J - t; :~

( 1/t}'/ i Si Ii[\ ;' I LJ,1t.,,. Ut:,,-,:,: :>:r* **, l*j/'.!

'f !) r:

I '

~~

LISTING OF IE BULLETINS ISSUED IN LI\ST SIX MONTHS (CONTINUE[))

Bulletin Subject Oat11 Issued Issued to No.

79-17 Pipo Cracks in Stagnant 10/29/79

• All PWRs with an Borated Water Systems at OL (for Action).

PWR Plants ,\ 11 other Power Reactor Facilities with ;111 OL or CP

( for lnforriat ion) 79-25 Failures of Westinghouse 11/2/79 /\ 11 Power l~eactor BFD Relays in Safety-Related Facilities with Jn Systems OL or CP (for Action)

TELEC:Ol'Y

,;,_~* u'lited engineers I-', ccn*;trnctor:; ,n,;

{~ 30 South 17th Strt*t1t.

Post Officu Uox 8223 Philitdolphia. Pa 19101 January 3, 1980 SBU-32861 File No.: 4.1.17 Ref,: :m-8567 No Response Required 0

Mr. John DeV.~ncent.is, Project Manager Yankee Atomi ,: El l'Ct ric Company Seabrook Station 20 Turnpike !toad Westborough, Massachusetts 01581

Dear Mr. DeV~ncentis:

,,. Public Service Company of New Hampshire Seabrook Station NRC IE Bulletin 79-02 1 Rev. 2 Attache1l is the UE&C response to subject bulletin, Should :*ou have any questions or conuncnts, please advise.

C, Very truly yours, DHR/cod Attachment cc: Messrs. J. DcVinccntis - YA~~ :_41.. w/4 at:tach.

B, B, Beckley - l'SNI! - 3L -..../3 attach.

J. D. Haseltine - PSNI! - lL w/ 1 attach.

J, H. Herrin - Field- 1 T ,., / J [lt't;lPh,

( A Raytheon Company )

\

]t('m 2 - Add it i.~11 ,\ction

'11,c Bull..t*in factors of safety were intcndt:d for the maxit:ium support load including the SSE. The :,me has not yet hecn prcvidcd adC<]ll.'.ltc justification that low<-'r factors of safety nre ncceptablc on a long term basis. Lo*..ter factors of safety ar<-' allowed on an interim basis by thi: provisions of Supplement ~o. 1 to lE Bulletin ~;o, 79-02. The use of reduced factors of safety in the factored load approach of t\Cl 349-76 has not yet been accepted by the NRC.

Item 2 - Propos<-'d Resnonse All concrete expansion anchors are dcsignei for worst case loadings which includes consideration of SSE loadings. lll of the concrete expan-sion anchors arc designed with a safety factor cf four (4) or greater which 0 satisfies the criteria of IE Bulletin 79-02.

Item 5 - Additional Action r Determine the extent that expansion anchor bolts were used in concrete block (masonry) walls to attach piping supports in Seismic Category 1 systems (or safety related systems as defined by Revision,! of IE Bulletin No. 79-02).

! I. If expansion anchor bolts were used in concrete block walls:

a. Provide a list of the systems involved, with the number of supports, type of anchor bolt, line size, and whether these supports are accessible dur-ing normal plant operation.

ec r-

b. Describe in detail any design consideratior. used to account for this type of installation.

c. Provide a detailed evaluation of the capability of the supports, including the anchor bolts, and block wall to meet the design loads. The evaluati~n must describe how the allowable loads on anchor bolts in concrete block walls were deten:lined and also what analytical method was used to detennine the integrity of the block walls under the imposed loads, Also describe the acceptance criteria. includin~ the numerical values, used to perform the evaluation. Review the deficiencies identified in the Infon:iation Notice on the pipe supports and walls in Trojan to determine if a similar situation exists at your facility*\i~th regard to supports using anchor bolts in concrete block walls.

d. D<'scribe tl\l' result:; 11: tt*stirn; of anchor bolts in concrete block walls and your plzinc; and !;chcdull' !or any turtlier act iDn.

Concrl't(* cxpam,ion anchors are not used in concrete block walls to attath piping supports in Seis::1ic Cate,jory 1 sysU*t:is.

Item 6 - :\(Id it i on:1 l .\ct i 011 Determine> the l'xtent that pi?e supports with c>xpansion anchor bolts used structural steel shapes i1rntead of base plates, Tlw systems :rnd lines revie11ed l!IUSt be consistent with the crite.:-ia of IE Bulletin ~;o, 79-02, Revision 1.

If expansion anchor bolts were used ns descrihe<l above, verify that the anchor bolt and structural steel shapes in these supports were includec! in the actions pcrfon:1ed for the Bulletin. If these supports cannot be verified to have been included in the Bulletin actions:

a. Provide a list of the systems involved, with the number of supports, type of anchor bolt, line size, and whether the supports arc accessible during nonnal plant operation.

r b, Provide a detailed evaluation of--the adequacy erf the anch0-r -ho 1-t design and installation. The evaluation should address the assumed distribu-tion of loads on the anchor bolts. The evaluation can be based on the results of previous anchor bolt testing and/or analysis which substantiates opt~rability of the affected system.

c. Describe your plans and schedule for any further action necessary to assure the affected systems meet Technical Specifications operability requirements in the event of an SSE.

0 Item 6 - Proposed Resnonse Many of the pipe supports with concrete expansion anchors have used structural steel shapes instead of base plates. The design of these supports, however, is consistent with the criteria of IE Bulletin 79-02. Revision 1.

Item 9 - Additional Action All holders of construction permits for power reactor facilities are requested to cot!!plete items 5 and 6 for installed pipe supports within 60 days of date of issunnce ~f Revision No. 2. For pipe supports which have not yet been installed, docunent your action to assure that items 1 through 6 will be satisfied, ~~intain documentation of these actions on site available for NRC inspection. Report in writing within SO days of date of issuance of

Revision ~o. 2, to the Director of the appropriate ~RC Rr~lonal Office, coruplction of your rcvic*.J and dcr.cri!>c any instnr1ces not prt":iously reported,

. in which you did not r.ieet the revisl,d (H2) sections of ite:~,i; 2 and 4 and, if necessary, your plc.ns and schedule for resolution. ,\ copy of yciur report should be sent to the L'nitcd States ~:uclcar Regula~ory Co::.::iission, Ofi1ce of Inspection and Enforcement, Division of Reactor Construction Inspection, Washington, D.C. 20555.

Item 9 - Proooscd rcsoonse All supports ,.,ith concrete expansion anchors are bein?, revie*,.,tcd to assure compliance 1,.*i'th items 1 thru 6, This review will be completed prior to the QC sign-off for the installed pipe supports.

C-r I

~fNUf PUBLIC SERVICE:

ii!JI~ Cornpunyor* NHan1pohir,1 SEABROOK STATION Englnoortng Otflco:

20 Turnplko Road Wostborough, MA 01581

,l.tllll.tl',' *l, l'll!I)

~,!HJ- I 1 l H(*f :;1111- l:Wi, l

'J'. l*'. H ,1. ;>. !i t.i.~;. Nucl0..it* "1,q11!,1t.u1*y Co111m.b;ni<l11 Rnqion I G11 Park l\Vt'll\lt' Kin<J of PrusBia, l'e1111i;ylvania 1q,10G l\tt:cntion: Office 1.>f lnspoctio11 ,1n<l Enforccmunt

Reference:

1. Docket No. 50-4,13 and 50-444

~ :i. NRC lL*\'tcr dated November fl, J<)./<)

3. IE Bulletin No. 7')-02 Revision :i

('

Subject:

Pipe Support Base Plate Designs Lh;inq Concn!lt1 Exp,11wio11 llnc:hor Bolts ff

Dear Sir:

We have reviewed NRC Bulletin No. 7<J-02 Revision 2 and offer the followinq responses to applic.:1ble Items:.

The Bulletin fact.ors of sufoty were intended fot* tho muximum support loud includinCJ the SSE. Tho rmc hc1s not yet been provided adequate j1u;tification tlwt lower factors of i;af0t.y .:1ro ar.coptablo on a lonq term bus in. Lm,;or factors of safety an! .:illow1id (Ill an interim basis by tlw provinions of Suppl.emont: No. 1 t.o IF. Bul loti n tlo. 70-0:!. 'l'lw unc of reduced L1cton; of safety in th*J factot*cd load appro.:ich of l\CI J4'J-7(, has not: yet boon accepb:d by the NRC.

1111 cn11,:n*t" ,*;q,.11i:;io11 .inchnr:1 dn, dL':;iqn.-*d for 11or:;t c.i:;v l<>.tdi11cp; which inc:It1dl':1 cn11,;itl,,i*,1t it111 of !;:;1*. lncidinq:;. 1111 of t.h<* ,:lJllCl'<'t:n <ixp.111:lion ,111,;hor:;

dre d,*rdq111!d 1d I h .i ::.ii',*I.*/ r.i,:t.01* ,,f f<lllr (,t) .. r q1,*.d ,.,. which ,.:.11 i:;Li,:,; tho cl'itu1*i.1 ol 11: flill l,*t i11 '/'l-tJ:!.

11:

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llt!t.,nnin,* Jj,,, **:,:11*1,1 1J1o1l 1*:*:1,.i11::i"11 .i11d111r l*11lt.; 1-1,*1,* 11::,*d i1, ,:.,11*'1**11* b]o,:I:

(t11o1:,t111r',') 't'ldl I:;  !,l ,1t *.11*11 1d1ii11 1t *:,q 111,11 ts i11 :,, 1 i:ani1* ,*,1t1 11 !Pf',' I  :,"'.:t, :11:i ((Ir  :;,tfc*t~,

ltd.ilf*d i*'/!itt'll\', .i:; d1*! JJH<11, C, l'n,vid,* .r d,*t .ii J,*d ,*v.illl,ll i<>II o! t !11* ,*,q*,il,i Ii I',' "r I It<* :;11!*1*"1'1 :;, i1wl11di11'J 111 .. dlWhfll' 1>,,l't:,, dlld l,loc:f; \*:,ill:; 111 111(*1*1. 1111* d<*:;i*p1 , .. .id:;, 'l'lw <!1/,l)ll.iliPII mu:;t d1*:;1Til*1* 1\01*: th,* ,1llow,dil<' l1>dd:1 011 ,111tl11,1* llr,Jt:; i11 "11<'1'<*1,* l>l<.H'k w,ll l:1 w,*11.* d,*t,*nni111*d il11d .il:a> wlt,11* ,111.ilyt ic*.il m,2tlt1>d ;,1,1:; 11:1,*d tc, d,.t,,11nin,*

tlw i11t, .. pity <)t 11.,, l>l,11.*k w.ill:; 1111d,*1* tl1,* im!*":,,:d l<>,1<l:;. /1!:1" d,*:,,:rilh*

tit!' ,1,*1*,*1*t.1111*c> cl'it,-1*i,1 1 i11clu,li11,1 1111* 11\1111,*l'i,*,1! v,1lw*:,, 11::,*d lo l"'rl<>rlll th<' ,:v<1lt1,1l i,111. I,,ivi1*w th<> defici,*rwil':; i.d1*11t i f'i<>d i11 ti,** l11fnr111,1tio11 t*lnl'.ic<:

, on thP pi1H\ :itl}'J>urt:; and wt1l.1!l in 'l'roi,111 In d, tPrrnin<1 il "!iirnildr !i.iLHdt1nn 1

<:>:i:,ti; ,1r. ;*1,ur L1cilit*y with n*q.inl to :;11pp,i1t:; 11:,i.11q .. 11,:11,,r li,ilt:; in i:u11c1c:lt!

r. b Int *k W<I l l :; *

d. 1),1:;cribc.* Uw nimllt:; of l<1sti11q of illlGhor bolt::; in t.'01i,;rut1: l>luc;k w,dl:-; c1nd your p I a111; and sclwdule for any fu rt:lw r ,1c t* i 011.

I tern. 'i - _l{C,'.!.'UIW<:J Cnnc'l't'L!! l'X(l.t11:do11 anchor:; ,11*,, not 11:aid i11 cn11crut*l* l,lnck ~1<111:; to iill:.rc:il pipinq support::; in Scismic Ct1h!qo1*y I syst*ims.

l tem 6 _- /\dd i l:_i ()lid L _,\ct ion Hl*ttlll'~i t l'd___i ll _ l~<~V .__ :! n_f__l_l*:_J~~U.!:' '~~!1__7~),::_rl_:~

Dt1l.crmi111* t lw <'Xtent that pipe :;uppo1*t:; wi t*h ,:;<pa1win11 ,lllc:hot* Lo] t:; u:;,*d nt:ruet ura L st.t*ol ::h,l('t.'S i.1wtec1d of b,11:t> pl.it.1111. Th(* riy:;t:,~1*.t: ,l11<l Ii 111!:, rvvi,:wtid mu:.t be consir:tent. with the crittiria of JE Bui !(*t i11 No. 7 1)--0;i, Ft!Vir,io11 1..

Lf ,:x1><111:;i,,11 anchor bolt!; were tHw<l ,1H d,*:;crilwd .i}yov,,, Vc!ri fy 1*h,it. Llw anchor boll ilnd !:truct-.t1ral :;tee] sl1<1Jlt'H in tlw!a! !-\llppo1*t.:: ',,'t*ru inc:lud(Jd in t*hc actions performed for the Bulletin. T f thcn<i :rnppoi:t:s c.:innot: be ver i fi,:d to hc1vc bl*C'II i11cl1Hlcd in the Bulletin actions:

ii, l'rovid** .i li:;t. of the Si'Ht:cmn involw*d, wit*II t:!1<1 11uml":r "f :il.li"*rt:;, l.i'l'l' (Jf illlchor l>nl t*, ] irw t,ize, ,llld wlwt lwr t.li,: :;upport':; ,11*., c1,:,:v:;:;i],J1* dtu-ir.<J nonn.il 111,mt opcr<<Uon.

b. l'rovitl" ,1 d,*t,1ilL!d f!V<1lu,it*ion of t-.111! dcl,*<1u,wy or t.Ji,,

,111<1 i11::l.il!,1tinn. 'l'llt! 11vc1l11<1t'ion ::linuld ,1ddn:'.;:; Lh,*

nt' l<>.a,I:; r,11 t*}ip ;111ch<1r l>o]h;. Tiu* 1*v,iJ11,1t i,,11 ,*,111 !.,. i,.i.: .. ,I 1,11 li11* r*::;1Jlt:;

<>t I" ,* 1:1,* 1 1:1 ,lll('linr l,ol L t,i:;t i1,q <111tl/,>1 ,111,1!*,-,:i:; v:hi,*i. :.,.;,.,t .i,it i,il.,*:1 Ol"*'r,,i,i I i.t:*/

1)t tl1<* .1: t,*ct,!d ~;y!_;Lem.

t*. l 11*:i*'I ii,, *:,*,,11  ; 1 1.lll~i dtld ~;c*l ***.it1Jn L)r .i11'/ : UI t h1*: d,*! j, :i**t*,,*.; 11 ** ,, .i:; ;11?-t!

t hP dt t, .. **d :;*,.1:;t 1*tn:; 1'1t*t*t 'l't~\*}11li1*.t l ::p1*1*i: i ,'.tf iut, 1: : ,;!,1) it'.' r*1*' .;1 t ,,;.,,fit*~

i 11 t : jl I * *:, '11 t ( ': , 111  : :*; I:.

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1.i11y of tll,* 1*i\"' :;111*1'ort:; wit*II i'(>llCr<*t.(* 1>>:p,111:;io11 .1111*11<>1:. 11.1\'** 11.1*,I 1;tnwl111,1l ::f,*,*l .. 11,IJ***:; ill';t,.,1,l 111 J1o111,, Jilo1t,,:;, 'l'lw il**:,1*11, ,,\ti,,., 1,1,1,1,1111*, 1 IH>WPV(*I', i:; C"ll' i*,l,,1,t wifll t}J,, tTit*t!t*i,1 of 11: i',11l l1*f i11 r: ... *1*1-11;>, ,,,.11i:;1,,i1 I.

/\II ltold,:r:; t>f co1u;l111,*Lion l'('l'lllil:; for 111,w,*r 1*,*o1,:t111* l,11:ilil1,*,; ,11,* t**<11t**,;t_1*d to complcll! it,*m:; r, ,rnd (, fol' i11:;t,1lled pip,i m1p1 101*t*:; 1,iflli11 <,o d,1*;:; nt d.ilt* 11!"

issthJllCl! of H*JVi:;ir.111 tJo. ::. 1*01 pipP :;uppot*f's wltir:h h,1v,, 111,J y,*t. l>t*i,Ji i11::f.ill1*d, d"c1111\\*11t yo111* ,1,*f ion t*o ,rnn11r1* fh,it* itnmn 1 t*llr1111qh r, wi II '"' :;,,f i:;fi,*d.  ;..:.,1nf.i11, do(:umunlalion of lliL'!i<.' ,1cli<HIH u11 :1it1* i1V.1il,1l1l1* lur tJl,1' i11:,1,,*,*t i1o11. l,1'\" i11 Writinq Within (,0 diiy8 of ddl:O of i:Hlll11l1CC of !{t!Vi:;i1111 !J11, ,!, to 1111: IJirt*r:t:or of lhe appropri.at,, NRC R(!qio11.il ()ffi<".*c, complcl.i.011 ol' yo111' 11,vi,*w .in,1 dr*:;,;ri.l,t*d <11\'/

instanctis not. prcviou:;Jy rt!portt,d, i11 which yn11 did not. 1111*(*1. I lit.* r<'vi:;ed (IQ) sections of items:! and ,1 ,111d, if*1wcc,;sary, your plan!: ,111<1 ::,*l11*d11l(.* for: 1*f*i-;ol11t*iun.

A copy of your rqmrt. sho11ld be Ht'llt to the U11ih'd st-.itt*:; tl1wl,*.i1* H<'<Jlllat.ory Commi.ssio11, Offic:o of Inspect.ion ,ind E11fnrctime11t, Division of 1{1*,wtnr l.'on::tr11,:tio11 l11:Jpcc;tio11, Washington, D.C. 2055S.

r

/\1.l supports with concl"(!tu exp.inn ion anchoru ,11*c1 bei 11q rovi*M'-'d Ln ,urn11re r, compliance with items 1 throuyh (,. 'Phis review wil 1 be complctl'd prior to tho QC sign-off for the installed pipe supports.

If you require ar,y further information, plc<1se do not lwsit.ite to contact us.

Very truly yours, C

t1 '

' :.11.. /~/).,;,' t,

(;John DlNincent i.s Project Manaqc1*

,JDV: tan cc: U.S. Nuclear Rcqul.it.ory Co1111nirrnion Office of Inspl*ct-in11 and Enfnn*Pmenl:

Divi.i;.in11 nt: H1,<1cfl11* Co11strucl:io11 I11np1),:tio11 Washi11yt*u11, D.C.  :!O'iSS bee:

r:u:c  :;11- i',.;,,

1-.*.1:1

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i  ?(-) lf\('f ::

,l/1', 1 Hl'H

, I: ,11

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