ML18153B009
| ML18153B009 | |
| Person / Time | |
|---|---|
| Site: | Surry  |
| Issue date: | 07/12/1994 |
| From: | Ohanlon J VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.) |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| 94-392, NUDOCS 9407190442 | |
| Download: ML18153B009 (7) | |
Text
PRIORITY 1 9ccELERATED RIDS PROCESSING) e REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS}
ACCESSION NBR:9407190442 DOC.DATE: 94/07/12 NOTARIZED: NO DOCKET#
FACIL:50-281 Surry Power Station, Unit 2, Virginia Electric & Powe 05000281 AUTH.NAME AUTHOR AFFILIATION O'HANLON,J.P.
Virginia Power (Virginia Electric & Power Co.)
P RECIP.NAME RECIPIENT AFFILIATION Document Control Branch (Document Control Desk)
R
SUBJECT:
Forwards draft ASME Code Case N-498-1, "Alternative Rules for 10-Yr Sys Hydrostatic Testing for Class 1,2 & 3 sysSection XI,Div 1" for approval for use at Surry Unit 2 to complete second interval requirements.
DISTRIBUTION CODE: A04 7D COPIES RECEIVED: LTR
/
ENCL _J SIZE:
f, TITLE: OR Submittal: Inservice/Testing/Relief from ASME Code -
GL-89-04 NOTES:lcy NMSS/STSB/PM.
RECIPIENT ID CODE/NAME PD2-2 LA BUCKLEY,B INTERNAL: ACRS NRR/DE/EMEB NUDOCS-ABSTRACT OGC/HDS2 RES/DSIR/EIB EXTERNAL: EG&G BROWN,B NRC PDR NOTES:
NOTE TO ALL "RIDS" RECIPIENTS:
COPIES LTTR ENCL 1
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2 6
6 1
1 1
1 1
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1 1
1 1
1 1
1 RECIPIENT ID CODE/NAME PD2-2 PD AEOD/DSP/ROAB NRR/EMCB OC/LFDCB e:a-~~
01 EG&G RANSOME,C NSIC PLEASE HELP US TO REDUCE WASTE! CONTACT THE DOCUMENT CONTROL DESK, ROOM Pl-37 (EXT 504-2083 ) TO ELIMINATE YOUR NAME FROM DISTRIBUTION LISTS FOR DOCUMENTS YOU DON'T NEED!
TOTAL NUMBER OF COPIES REQUIRED: LTTR 23 ENCL 20 COPIES LTTR ENCL 1
1 1
1 1
1 1
1 1
1 0
1 1
1 05000281 0
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y 1
D 0
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M E
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VIRGINIA ELECTRIC AND POWER COMPANY RICHMOND, VIRGINIA 23261 July 12, 1994 United States Nuclear Regulatory Commission Attention: Document Control Desk Washington, D. C. 20555 Gentlemen:
VIRGINIA ELECTRIC AND POWER COMPANY SURRY POWER STATION UNIT NO. 2 INSERVICE INSPECTION PROGRAM ASME CODE CASE N-498-1 Serial No.94-392 NO/ETS Docket No.
50-281 License No.
DPR-37 ASME Code Case N-498-1 (attached draft ASME copy), "Alternative Rules for 10-Year System Hydrostatic Testing for Class 1, 2, and 3 SystemsSection XI, Division 1," was approved by ASME on May 11, 1994. This Code Case has not been approved for use by Regulatory Guide 1.147, lnservice Inspection Code Case Acceptability ASME Section XI Division 1, due to its recent approval by ASME. Therefore, pursuant to 1 O CFR 50.55a(a)(3) it is requested that Code Case N-498-1 be approved for use at Surry Unit 2 to complete its second interval requirements.
Surry Unit 2 is scheduled to complete its second interval, 10-year inservice inspections during its next refueling outage, which is currently scheduled to begin January 14, 1995.
Code Case N-498-1 now provides an alternative to the Class 3, as well as the Class 1 and 2 (N-498) hydrostatic test Code requirements (ASME Section XI 1980 Edition, Winter 1980 addenda). Planning requirements associated with this outage requires that advance approval for use of Code Case N-498-1 be obtained in lieu of the normal Regulatory Guide 1.14 7 revision process.
Hydrostatic tests are historically difficult to perform, frequently requiring extended test duration, while non-safety related issues such as maintenance boundary valve isolation problems are resolved. This adversely affects exposure accumulated by test personnel and system tag-out duration. Code Case N-498-1 provides increased testing flexibility, allowing testing to be performed at nominal operating pressure, therefore, significantly reducing the number of test blocks, system tag-outs, and corresponding boundary valves required to complete testing. This flexibility is accomplished while maintaining an acceptable level of safety and quality as determined by the ASME Code consensus process.
lGCD2S.-
9407190442 940712 PDR ADDCK 0500~~~1 p
Code Case N-498-1 will continue to provide assurance of component structural integrity as intended by the ASME Code and, as such, it is requested that interim use of the Code Case be approved for the upcoming Surry Unit 2 outage.,
If you have any questions concerning this request, please contact us.
Very truly yours,
~Q{A/o-11~
/James P. O'Hanlon Senior Vice President - Nuclear Attachment cc:
U. S. Nuclear Regulatory Commission Region II 101 Marietta Street, N. W.
Suite 2900 Atlanta, Georgia 30323 Mr. M. W. Branch NRC Senior Resident Inspector Surry Power Station
e Attachment ASME Draft Code Case N-498-1
e
'ASME CSPSc BCDE NUCDC:SN49B n-498 06-2~9412:09:06 Galley-
... START mod. ***
CaseN-49S-l Appnn,1111 Data: lbf 11, 11194 SH Numarit>>I lndax tar Npfrarfan 11nd *ny fllldfimwtian rhlt111i, Alrernatt111e Rul~ for IO-Year System IIydrostatJc THda, for C1a11 1. 2 and 3 Synemi Section XI. Dhisioa 1 Inquiry: What altcimative ruJ~ may he iued in Jie11 of tbose required by Section XI. Division l, Table
~00-1, Cate:aotY 13*.P. Table JWC:2500-1, C.at*
cs1oey C*H. IUld Table IWD*2500-l, Catcroric:s 0.A.
1)..B, and D-C. as applicable, for the 10-year system hyclrei.ta.ric: test?
Reply:
(ll.) It Iii the opinion cf the Committee that as an aJteni.a.tiwJ to the 10.year &y$11!!1Il hydrostAtic: test re-quired by Tablo JWB-2500-1, Cateaozy B-P, the fol*
lowin£ rules shall be used.
(JJ A &)'Stem lcakaac test (IWB-S2Zl) Sh8lJ be conduct~ at or near tb~ end of each inspection in-icrval, prior to reactor 15WtUp, (2) The bound~ subject to test prensurizaticm dwin& tbe &)'Stem leakage test shall mend to all Cass 1 ~urc retalnlng IXl!D,paomi~ withw tho.sys*
&elm boundiuy.
(J) Prior to pmormmg tbe: VT-2 Visual ~~
nation. the &y51cm shall be presswi7.ed to nominal operatina p:rC5iUre for at least 4 bow, fQr wulated systems 1.t1d 10 nrlnutes far noniDsulatcd i)'litenu:.
The ryuem tlball bfl tnftin'L'Ained at nominal operating pru6UTC. durin,: pe:tformence of the VT-2. ~wa1 c:x-aminatiou.
(4) Tnt iemperaturcs and pressures ibal! :iwt ateed lirnitirJa conditions for the b)ldrostatic test auw u contained in the plant Technical Speicifica-tiMS.
N-498-1
e e
- ASME CS~S BCDE NUCDCSN498 n-498 Oit--24---94 12:09:0fi Gallt!')'- :2 (5) The Vf-2 vi5;ual examination shall include all eompanents w'.ttlun tbe bollndary identified iJ1
(,1)(2) lbcwe.
(6) Tut insttwuentation requiremsnts of IWA-5260 ~
not applii;:abJc:.
(I,) lt ii me opinion of the Olnunittee rhat, as aJJ wmattve io the lo-year sync:m bydroMa& ICSt rc-qund by Table IWC-2500-1, Ca.tcgozy C-H1 the fol-lowiD,g JUJo& sholl be used.
(1) A syi;tem pressure test shall be conducted at or nc:nr the end of c.a;b iUpcction inte!'Ye.l or during tbe ume inspection period of eacll inapcetion inld'-
val of Inspection Proatam B.
(2) The boWldatY subject to test prC55Uriz.ation duting the ~m ~
lest shall enefld to all Clua 2 c:ompo:ieiiu mduc;li=d in those portions of~
~
mqulrcd to operate or suppon the safcry &y11tem
- fllntti.on up to and ineluawi the tinJ nonnalJy c:Jmcd
~ivei. ;tncludmi: a &afcey or rcUef valvo, -or lfalve ca-pable of automatic &.losun:s whon the: Gafety function i& required.
(3) Prior to perfo.rming the vr~2 'Visual exami-nation, the system rilie.11 be pressuru.ed to nominal crperadrig pressure far a minimum of 4 hours4.62963e-5 days <br />0.00111 hours <br />6.613757e-6 weeks <br />1.522e-6 months <br /> for fn.
IA.llated "f'tCm& and 10 minute& for JKJJrlniulatcd 5)'5*
tcms. Tho &yt.tem flbaU be maintained ll noftW'al op-erating pn:s&Ul'C during pcdomian" of tho VT-2 wual iaramination.
(4) The vr-2 VISUal E:wnination shall im:lude aIJ i:ompon=utB wilhin the: boundary identified in (b)(2) flbov,.
(SJ Tost mstrumentation reqwrements of IWA.-
5260 ere not applicable.
{c) It is the opinic,n of the O:mimittcc that. as an alte.mative ra lhe 10-ycar system bydrostatir;: to5t ro-quin:id by Table IWD*2S~ l Catcigrir:. D~ D--B, or 0-C (0-B for rhc 1989 ~
wi11i the 1 and aubriequrmt Addenda), u appli~blc, lhr;: :loJIQ\\Yina IUIM shall he U$Cd.
(J).A ~c:m pressure lest &ball bo condu~ at or near tho end of~ ~i:m tnwval or dW'ing
. th111 aimic ~on period of each inspection inter*
wl Of ~WI Propam B,
(.2) The boundiuy !illbject to test pressurization dnrinJ the s.ystem presmre test shall mend to all aaa 3 cu.mponarnrs includi:d in those portions of 11)'8-tcms rcquin:d io operate or suppon the safety synom funct:km up to and including rhe fim namia.Jly dosed
'llalve, tncludin&
- t1afc1y or relief vaJve cit valve ca-pable of auimnadc domrc when the ~
tuncdon h nq11ircd.
~,..
-J J
1 e
ASMECSPS BCOE NUCDCSN498 n--498 06*24-9412;09:06 Galley-3 (3) Prior to performing the Vf-2 viwal ~an\\i-uation, lthc S)'Stmu shall be pressumcd Eo nominal operating pressure for 1.t least 4 houn; for insulated ay&tcms and 10 JIW1utes for noninsulatcd systems.
_,_.*,- The system sbau be maintained ax JJcmlinal operadng pressure during perfonnance of the:,n-.:z '\\llsua! cx-aminaijon.
(II) The VT-2 vimal cummatlon shall include all components within the boundar;, identified in (c)(2) above.
(.S) Tess fn&trUmentation re.quirements of IWA-S'.160 ano; not applicable *
- DJ) ***
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