ML20099H102
| ML20099H102 | |
| Person / Time | |
|---|---|
| Site: | Limerick  |
| Issue date: | 05/07/1984 |
| From: | Boyer V PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Grier B NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| OL-A-101, NUDOCS 8411280023 | |
| Download: ML20099H102 (4) | |
Text
.
A99t. Ex. 101
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.. g' 1:r. Boyes c:ler, r1= ter elIim United States thcLear Ecquictorf Ce=icsien Offico of Inn;cetion e.i F.=fc=encat, T.ccier. I 631 Tr.::: Ave t T.Lnc of ?ra::10, TA 1?l;CG 1tbject:
U2'U.C II;I L?tter d;.ted Juns 16, 1973 En Site I::pectf o 1 of I*e,-r 1L*4.1978 Inspection !!o;;rt !!o. 50-752/78 t'4; 50 (E.1/78-0 D Licoric'c Gererstirg Stati
-- +c 1 & 2 Filot CU.'I 1 7-2 (1:9/7%%)
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Lea: 1:. C:lers i
In respon:a to ths ::bject letter :es. ling = itos identified durin-tho schject inspection of c==:t= tion c.etivitics enthe:1:cd by ICC Licent:s ros. CIIn-105 c.d -107, wo t===:it he='. tith the followin.
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Attach =nnt I - Keeponse to Appen"~ A Fnould you hrto crif quan-icno con amina thin ita=, ve vculi bo plesce1 to di::uco th:= with you.
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!!. R. k* citer:/Loen1 File (2)
J. J. Cisroy R. A. l'ulford J. !!. Conor n /
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' 04tfe-i--i P. ef ~.nfr'.*-ion 10 0?R'50, A;;cnf.in 3, Criteri:n -- states, in part. ta: " Meas =es
's..all be e:::blished to a:sre ths; 2;;1icable regulatcry requirenents
...are corre :17 ransla d in o spo:ifiesti:n. drsuings. prececr es and insructi:ns.
ht:e =easure: s-*'
d-
'"de ;revisiens to 'assee
-hat a;;repr.ste quality ::andards jre specified snd-included in design d::=ents and cat deviat:.:ns fr = such stant.ards are cenr:11ed..."
Parapa;h D.7 3 cf the Qaalit/ Assrance Props = dec=ented in te
?SAR s,.sto: in part, dat "
ite=s included in the 3ech.el Ingineer.nc desip. con ::1 (are)... deter =ine ea: :.e required desir. bases, ?S.O ~~
ents and p-ler rer.:la. cry requirvnen s are incorporated properly. into the desip. drn.gz..."
Paragraphs C.2.6 and 5 2 5 2.1, of 2. ?SAR, specify the A eriess
- Jelding Society (M;3) Ccde D1.1 as a qualir/ s-a-de d for Class 1 aeis=i: s euctres.
Cene ary to.he above, as cf May 16, 1973, te neasces provided did not assure that unacce;.able dev attens fr:= quality s.ar e-d f r d
Class 1 seis=1c structres were cen.r:11ed.
A.
S:: : tral steel was ins.alled in the ::ntair=ent, a Class 1 se1s=1:
s.ructre, per Sechtel den"_=g :-To. C-375, Revision 6, using weldi.s
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precetres for prequalified fi*.let weld j:ints. Che weldjois.s do i
not meet te critaria in Secti:n 2.7 of to MTS D1.1 cede f:r.re-e -.m_i e. we 3,i
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s.
s,. 3 m a
3.
5::: -ral steel was 1.stalist in ne contai=ent, a Class 1 seis=1; swuerre, ;er 3echte*. drawing !!o. C-675, Kev'sien 6, usi s bars to fill isrge weld jcin; gn;s. Che a;;1ica.icn cf
.e bars d:es nc-
=eet ce criteria in Se:.1:n 2.4 cf -de A**'3 D*.i cede fer use cf fillers.
P.estence to Iten A 4
O.e weld join.s sh:wn in Oetails 4A and 9 en Oug. cC31-C-375.Rev. 6, l
are cen=1dered ;requalified welds as either fi1*.e: welds of I45 31.1*
Fig. 2 71 types or par:121 peneration peeve welds of the 3C-?2
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or 3 C-?h ty;os as a;;11:able under AW3 Di.1 Tig. 2.*C.1.
O.e a;; roved weldi=c pr :edre used, 3echtel weldins ;rcestre ?*-A ~.h (Stru:74ral) is appl 10: ale for both fillet welds and par.121 ponera.:.:n groove welds.
- A'a*3 Dt.1-72, Rev. 1-73, Rev. 2-7h Strue =al 'a' eld 1=g Code i
SC-352/78-Ch i
SC-353/73-C2 i
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e-4:_:u ;.:n: :.n:. : n ua. no rarta:A pens.rs:.sen c..:/ cr :. _au r
. wt'.li: che r. in Oc-ih ha sni ') of Nc. 3031-0-375 ara :.; ble cf
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g eater 2.60* :.d. as a ; -tial ;e.:.e::stien 3--::re weld when 2.e inchded. ancie 1: besuce 35 ant. 60*.
Restense t:
am 3
'::etail 9 c' Nc. 3031-0-375, Rev. 6, was devel ;ed in crder to reselve an asse=bly pr:ble= as providef. by I'..G D1.1 para. 2.1.1.2.
Sectica 3 3 cf A..*3 ind.ica es dat t.t.en there is an asse=oly pr:ble= corre
.d. ss a,,. a.,ve d *,- ~.=. e.,d_.se-a. a..e 'ce - s.-' ded. As.t's"_' ed, x., a".".
- o..,as
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~. e w..y =e,..e_3 _.u
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as a corre: 1ve ne== e.
Detail 9 is in ::=;11an:e V th Se :icn 2.h in ca all filler platas as fabri:sted by 3echtal at 2.e st.e are inch cr thi:ker. ':' be see that there is,nc =is ;.nf. ors-2-d'-, >g. 3031-C-373 has been revised to show a - inch
-d
' u= 2.i:P_.ess for -de filler platas.
De ail 9 clearly sh:ws c.at the fi1*~er ;1ste ::ns-be of sufficier.t s4.e so *w.a. wi,.a..w te. 4
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fur *.her
'd dtations en plate ad ensions are required per en-ineering desis=,
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