ML18139A032
| ML18139A032 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 01/29/1980 |
| From: | Spencer W VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-02, IEB-79-2, NUDOCS 8003070091 | |
| Download: ML18139A032 (2) | |
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- Atlanta1 Genrgfa 30303
Dear Mr. 01Re11ly:
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PSP"/!)1"1 111*~-c.. ****- F. J. LONG \\ *\\; .... r,;.t.. l\\ lA) .lilij. *ft~ii~ C. E. M~P.Pl!l'. .* o / ;J
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- 1. 11. C!-f-RK Docket r,os. 50-280 50-2Bl E:::,'
License Nos. DPR-32 OPR-37 SUPPW\\EHTAL RESPOIISE TO I.E. BULLETIN ~O. 79-02 1 REVISION NO. 2 SURRY PU\\iER STATIOH UNITS 1 & 2
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.. ;- -i~ .. ~ *r ItEm 5 of I.E. Bulletin Ho. 79-02, Revision Ho. 2 addresses piping supports in Seis!iiiC Cati:gory I systf:iiiS 11hich are attached to concrete block (masofiry)
- walls with expansion anchor bolts. Our response to the Bulletin dated O.:C8:;b2r 7, 1979, Serfal ~o. 943AJ110879, identified five pipe supports as being on block walls and stated that h'e ~er~ continuing our inspection.
"!{: lie have n:lW co;r,ple!ed o~r inspection of the accesS1ble and irm~essible ill'C~: . i:"-. of Surry Units 1
- and 2. A tota 1 of 18 _Seismic Category I supports attached to
} ma~onry walls ~ere fdtntiff~d. * ~11 pf these supports ate fn the Autiliary 1, Building and are accessible during operation.- The types of anc.hor$ installed ... _*. -_- *-:*-f: appear to be shell or sle.r:ve type anchors with bolts or scre;.;s used to attach tt -r supports. The systems. line sizes, numbers of supports. t.,ves of arichor bolts,. /~--
- i arid t_ypes of supports fnvohe~ are*surr.narfzed below:. *'>*:
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- to ;; * ' ~;:,;<:,~'.fl ** *. *.* Syst01f]tb;, ** 'i~Jli:,!J'* ~:~1:f !~:.~f.. ',..
~--~ -**... *.. *. t CheJli~al Vo11t;*c~-ntrol *).\\stt::i-4. :...
- f" and Co~tair(~ent Vacuum };'?(' *.2..
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and Aeratad Drains. ~}.~<.. ,h~:-~ *.:<t~:
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- Bolts
. Sir1~le line .-.~---* :.::,* . Bolts',- -* tlult!p1e Lint , I . -~ Scr~s ***
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6olts~-f=>i11tiple Lin~*
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1 Bolt~*,*: Multi_ple Linr:
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~- ----* *.*----~----- . ~- ~-. -._. .......... ~. .. 1 ' i l-l -*. f; t-- f }* i\\ -_* --- -h. .. :....,.. -1.: . :(it. . ~.. --:* *. ': -. \\ i '"~ t\\...... . J.;;t t ~. This su;-:N1ry supersedes thQ list transmitted to you* as Att~d~i1s:nt 1 to mu* ~revfous lett~r of Dece.1,bat-7* 1979. In lieu of providing the d~tailed evaluation r~quired by the Bulletin, wa are d~signing fuodifications to remove these supports fruu the concrete block walls. We expect to have these modifications d~s1gned and installed by the end ~f ff;bruary, 1980. If YOU ShGuld have any questions, p,eaSe COn!e.Ct. us * .,-f*-':' I Very truly yours~_*.*.
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//,//t.t*. ~,:. / ,~:.-{i"lc:-1~~y _'. W. C <,~pi!ncer *. Vice Prestd~nt - Po~er Station Engfneering ind Construction Ser~ices cc: Mr. Victor Stello, Director Office af Inspection & Enforcement *_ * . Kr. Haro 1 d E. Denton. Dtrettor * *. - Off ice of Nu~lear Reactor Regulation ... ~ *- -. *.:. ~--- - ..,_,_: *:-.. ~*"....: :: -.. **- ~ ........ ***-: ~... --~.; -.,.. -- -** --,..
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