ML17265A664
| ML17265A664 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 05/25/1999 |
| From: | MECREDY R C ROCHESTER GAS & ELECTRIC CORP. |
| To: | VISSING G NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| REF-GTECI-A-46, REF-GTECI-SC, TASK-A-46, TASK-OR NUDOCS 9906040167 | |
| Download: ML17265A664 (20) | |
Text
REGULA'1 Y INFORMATION DISTRIBUTIO YSTEM (RIDS)ACC:)RBZON NBR:9906040167 DOC.DATE: 99/05/25 NOTARIZED:
NO DOCKET I ,FAdpL'.50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G 05000244 AUTH".Q~E*
AUTHOR AFFILIATION NCREDY,IR.C,.
Rochester Gas 6 Electric Corp.RECIK.NAME RECIPIENT AFFILIATION VXSSING,G..
SUBJECT:
Forwards addi info on use of GIP method A for RE Ginna Nuclear Power Plant.Copy of RE Ginna Station USX A-46 C"Outlier Resolution Table" as recpxested.
A DXSTRIBUTION CODE: A025D COPIES RECEIVED:LTR ENCL SIZE: TITLE: Seismic Qualification of Ecpxipment in Operating Plants-A-46-GL-87 NOTES:License Exp'date in accordance with 10CFR2,2.109(9/19/72)
.05000244 E RECIPIENT, ID CODE/NAME OGC/HDS3 VXSSING,G.
XNTERN.ILE NRR/DE/EEIB NRR/DIPM/IOLB NRR/DSSA/SRXB COPIES LTTR ENCL 1 1 1 1 1 1 1 1 1 1 1 1 RECXPIENT XD CODE/NAME LPD1-1 PD NRR/DE NRR/DE/EMEB NRR/DLPM/LPD1 COPIES LTTR ENCL 1 1 1 1 2.2 1 1 EXTERNAL: NRC PDR 1 1 D C U NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE WASTE.'TO HAVE YOUR NAME OR ORGANIZATION REMOVED FROM DISTRIBUTION LISTS OR REDUCE THE NUMBER OF COPIES RECEIVED BY YOU OR YOUR ORGANIZATION, CONTACT THE DOCUMENT CONTROL DESK (DCD)ON EXTENSION 415-2083 TOTAL NUMBER OF COPIES REQUIRED: LTTR 12 ENCL 12 I 4HD I I ROCHESTER GAS AND ELECTRIC CORPORATION
~89 EASTAVEhlUE, ROCHESTER, M Y Id6d9-0001 AREA CODE716 SX6-27K RO8ERT C.MECREDY Vice President Nvcteor Operotions May 25, 1999 U.S.Nuclear Regulatory Commission Document Control Desk Attn: Guy Vissing Project Directorate I-1 Washington, D.C.20555-0001
Subject:
Additional Information on Use of GIP Method A R.E.Ginna Nuclear Power Plant Docket No.50/244
References:
A.Letter from Guy S.Vissing (NRC)to Dr.Robert C.Mecredy (RG&E), dated April 6, 1998,"Request for Additional Information on the resolution of Unresolved Safety Issue (USI)A-46 B.Letter from Robert C.Mecredy (RG&E)to Document Control Desk (NRC), dated May 27, 1998: "Response to NRC Request for Additional Information (RAI)on the resolution of Unresolved Safety Issue (USI)A-46".C.Letter from Guy S.Vissing (NRC)to Dr.Robert C.Mecredy, dated December 3, 1998,"Second Request for Additional Information".
D.Letter from Robert C.Mecredy (RG&E)to Document Control Desk (NRC), dated February 2, 1999,"Response to, Second Request for Additional Information" USI A-46
Dear Mr.Vissing:
Recent telephone conversations between the NRC and RG&E discussed concerns regarding high In-structure Response Spectra shown in Rochester Gas&Electric's January 1997 USI-A46 submittal.
Rochester Gas&Electric provided explanations in responses to the NRC RAI's (Ref.A&C)on 5/27/98 and 2/2/99 (Ref.B&D).These discussions focused on whether Ginna structures, such as the diesel generator building, could be considered"typical nuclear structures".
RG&E agreed to supplement our February 1999 submittal regarding qualitative explanations of seismic response spectra margins with some quantitative examples.Enclosed is a comparison 9906040167 990525 PDR ADQCK 05000244 P PDR s~
evaluation of overall seismic margins between Median Centered Analysis and Design Basis Analysis for nuclear power plant structures at other facilities similar in construction, building frequency and damping to those at Ginna Station.This information has been developed and compiled by EQE International, Inc.and is meant to demonstrate that factors of safety in original design basis analysis can be shown to be in the range of 2.5 to 5.RGEE believes that sufficient information and justification has been provided in order to allow closure of USI A-46.In addition RG&E has enclosed a copy of R.E Ginna Station's USI A-46"Outlier Resolution Table" as requested.
Very ruly yours, Robert CD Mec dy Enclosures xc Mr.Guy S.Vissing (mail stop 14B2)Project Directorate I-1 Division of Reactor Projects-I/II Office of Nuclear Reactor Regulation U.S.Nuclear Regulatory Commission Washington DC 20555 Regional Administrator, Region I U.S.Nuclear Regulatory Commission 475 Allendale road King of Prussia, PA 19406 U.S.NRC Ginna Senior Resident Inspector squg2.rai W~~~~)~a~~s~~I s I.s I~~I I~~I I s~~I I I~8 I~I'I s I I I I~I II S I I I I I I I I I I I'I~I~~~I~I.S I I I~~~I~I~I I I~I I I~I~'I I I, I I I I I I I I~I I I I I I I I I~I SI sl I I'I~~.~~s'~~.~~I~'.~~s Figure 1: CPSES Spectra Comparison From Docket¹50446&¹50446 NRC Letter Dated February 1, 1988 6.00 Margin=3.8g/1.6g=2.63 l.60 Pe aha()sl s/I z.Il 3,Sq l f I'Qes)~~%isis 4y~'~l t I I-(-i I~5g 2t 5.tO.FREQUENCY fHZ)20.OBE RESPONSE SPECTRA.CPSES BLOC.RUX1LlARY ELEV.9000 FEKY DlR, Eu OAHP.=2 PERCENT SOL ID"-tHPELL OASHEO~CMOBS RNO HiLL Figure 2: Plant B: Original Design Basis Respo'nse Peak of OBE 5%damped curve=2.9g Design Basis-+SSE=2 x OBE..Peak of SSE 5%damping=2x 2.9g=5.8g Reactor Bldg.Intsrior Elev.365 Ft.-6 In.5.0 5.Q i.s 2.5}~0.5 0 0~0~I~\:::.:;::::
OBE Horizontal
~0~~~~~~~~F 0:.:::::: Structural Damping 2%~~~~~~~~~0~~~~~~00~oto~t~oaor~4~0)OVO~4~I'1~~)'~~~(~r Cv~'~~ao~t~I~a~~~I~~~~v~I~~0 I~I I II~~I~~'~~~~I~0~~~\~~01~0\~eAlts~ts~1~~~rA~~{}~~I~)~~~~~0>>I~~~(~0~0~I~~v~ov I~}~r fir~~~~~I~~'1 v~~~~}~~~~~~~~~ioesol~i I~~I~~~i<<s~(~~~~~~0000~0~~ao~0~~~0~}~c~~'I~~~}~j~~0 t~~r r r}~0~~~~~~~0~~0~,}00~A~0,0~,~V>>~~I~~,~~~~,~,~~I~0~~0II~t(ot~I~~otto I'l0~1~I VI I 0>>fe I\~~~I\~\~~loess~4~Ao~0A0~st I Is~I~~~~~As~I'v~~~lsA>><<(~~~0~~~~~~v~)v v)~~~At)~~~(~1'.C jv~~~~oroojotrvoi(~se~sti~tof~sve 4~~to~~~~s~~~~~~0~I~~~(0~~I~~~~~I~~~s fir I ei I vo I I I 0~~~~~~~~~~0~~~~~~~000>>0>>OA~~c~~~~'r(~~~~ia~(I~~~ro~~~0~~~~~~~~~I~~~(t~~~~0<<~~I 0>~'I~Ie~I'I I~~~~~I~4~~'~I~~I~~~~~I~~it~~~~~~I~1~I~t~~0~~r'I~I~~~~~I~~~I 0~it~~I~~01~too>>~I~I'l'I,~I Il~~~~~~~~I~~~~~lor~~I\(1~~~~rs~~~I}~~~r r~000~~~~)~~~(I~~~~~~'I)I~I}I ieo I>~~)4~loof~I~I~>to ttoo~~I>>oo i I~~)~'s<<0~0~I I I~~~~~~',~~~~~~~00~~~~io~~~~0 rtv>>~V}1~v~)~}~~I~~>~~oetoeoto~~~oofr~~sof~~I~a~~>~~I~~I~~~~r~1 00000)~~~(~~fe~~~~~~~evil}I~I~'ll~4 I'~~~~~~~0~~\}>>>>>>~I~~)A~~~()40 A)~00~~~~~~0~rr~I~~v 4~roo v~I~I rv~ji)~l~(~~~~)~~~l~~~~~~~~4~~I~~~~osoi~~~~l~~1<<I~~~~(~~~1~~as>~~~~~00~'~~I~0~or I)~I}~~r I~tv~Os~)vr~~~~~OA)~~~I~~~~0 I~~(0~~~~~e~s~I~~~l~<<I~(~I il~4'0~0~~~>~~~~I~I~ooo~~~tA A Ao~0~~~~it>~C}~~0<<t Ao'>1..::,':,:::;.'::.:::;
Component Damping.-.'.: 'I~--~-~4 0.X amIn~i~~~0~~~ti~~~t~~~I~~~~~0~~0'~I~t~~~~~~~~~~~So~~~~\~~.~~~~I~~~<~~I 2.0X Dam In~~I~~0~~~~~~~I~t~0~I~~~(0~~0~I~i~~~0<<of~""-:.""::" 3.0K 0am In I~0~~~~~4~~~~~I~I~~~~~~Oe~~~~sf I~0~~f~~~40~~~~~0~~~~~000~~~~~~~ILIOX Dam(}lni}~(I~~'0~~~~~Ao~~~~'}~~~~~~~1 00(~~~~~~~~~~~1~~~1 4~~~~~~~I~~~(0~~~~~~I~0)~~~~~~~~~~~~~~~~~~~~ore~or~I~oc~~~~~~~>>~~~~~~0<<~~0~~~~0~I~I~I~~~~~~000Pbss<<~~1A (I~I~(~~(i o~es I~~it~~~~~~~~~~~~~est~~sass(I a'1)~)4~~~~~~'01 0.Period , Iec.)~~~~~~~~~~~~~~'<<~~~~0~~~~~irs~~0~~Iv~~~10~~v t)4~0~0~~~~~~~~~0~or oil~~~r~~~~~1 A V er>A~40~11 A~~~~~I~~~1~~~~I~~~>>v Iov~~~~~~1>>>I~'ll~'~~~~~~~~~~~~~~01>>}r~~r 0)~~~~~~~~~}I+frit~~(~~(ew i~~~~~~~I~~~~~~~~~~Io<<0~4~~~~~)~~ra~~~I 0 I~~vo)v~~~~0~I~~~~~~~~~~s~~4~~~4~)0~0)0~~~~~0~(~~s)ovf~~~I~~~~~~I~~(~~~0 0A io~er)~I~~0}I}I 0~le~>t~~~re>>0 oil~~~~~~~~~~~~~I~~~~oocroo)i~~ov<<I~~0}l'r~0~(A~~'I~1}~iv<<~~~'~0~r~tit<<~~I<<>>~~0~~0 1st so>>I~~4 I A~v~~~~~~~~~~~~~~~~~I)~0>0~~~~400~~~~~0}t~)r}~~~~>>j tv~~'~~~~~~~~I~esa~ovtj~~to~~~I~~s~I~~litt~~~t~oss~~0~~~~~0~tt(0~0~OA~ejo~(~~~C ir~0~r)I)ysj~~4 oi vA A}~~~~~~~~~~~~~~~~~~0 v~~~~~~~~I 00 v s r~(I)~I~~~~~'v (~~~~~0~~~~I~~~(0~~~~OAI01~01~~I<<A~I~~l I}I>>all~(I~itr A>>A<<~~0~~~~~~~ao~00~~0)~0)(ot~~(sof~0}C~0~Cr I}~~~10~~~4+tv~~~~~~ei I~~ta~oi 000 s I~~0~0 vi~~esf~II(00~I~s ta 00~oo~4~>>0A I~~i~0~iia<<a}IA<<I~4~~~1'ir j~~,~~~~(~~~~~1)<<~~)~los~1)f 1~~I I~~r 1>>A~~~~~~~~~~~~~~ov ot 4~~tveo~I~or(~~~ov~(jiitt~~vs~eiv(0~~~~~~~~~I~~~te~~~~~~~~~~~~~~~~I os l>>(il~Ill~~I~osl Ise~>>~I~'~~~1~~~0~ira}v~0 vo'0~~oar~~}srA0 0~001}~i)'0~~I~~~~oto~~~ova<<~~ft>>01~I~~ots I~Ij~Ill~~~~~00 40~~~~~~~~40~~~~0AIAOA~otr~C~~~loire~~)~C~I>>01040~~ei A oj~te~~I~~~~~~~~~~~~~v~~}'0~I~4~~)~ee(~r<<t(1~~I~~~~~'I~~~~~~~~~~I~~~I~I~esoei<<0~0~~0~~~4 sf~I fis~0~I~>~seo~~~I~~~0>>~0 v~I~~\<<\toe~'~0~ir~)~I~0~~4oer 0)4)~0~~~~I~~0~~)~~0>>~I~tt~I~~~>>I~~~\Ii<<III~~~~Isl~~~~~~~~r~~I A}0 (00~A~}~~~>el t~}4}~t>>~~4~~~~0)rc I~~~~~I}~~~~0~~~Ir~~~~~0~~~00~I~or 4~0~~I(0~>>>~s~II~~~~~i~~~~~~~~te~<<reso~1~~io}r~~I~1<1~~If~>~)~(s~I~I~~~~~~0~~1~~~te~00~~lv~I 0)I~~'(ro 01~~v I~~~~~~~~~lo~~~~~t t sole<<os~~os<<f>>osf sl~~~~~I a~'I~~~~~~~~~~4~er 4~~~4<<ol~ei~~~~~>r tvo~~~~~ro~~~~~~)~~~I so~0<<00~01~~Il~0 I~fifa)f4~~~I~t~~~~~~0~(~it~40~~~(ertt~Are~I)~~~~I'~~~r~~otter~~~~eee~~lo~0~~~love~is~00>>f<<rs I4<<~li<<~~to~~~~0~~1 00~IA~~4~r~It<<I)0~~s<<<<0)Ct<<sj~~4~0~\I~0~~0~r~~~000~~(~tve~ov~~0<<0~I~or(0)~~~1 0~~(~~I~0~~~I~0<<I~f~sttoo<<l ll~I~I I (sf>>f 000 I~~~0~~~~~~~~~~~~Co~0}040 00>00)0~~I 1~~~)r tsr~I~~~1 1 A~~~ol~~~~0~~~~~~v 0000~os>~~~~~ot 1~eve(;~~>~~~~~~~~~~~~~~os~~~~~is~0)or~~0 s>}~~loe<<0 1~1~1~~(~I~'~~~~~~~~~~~~~e~~~tv~01040~~04~~0000)1 as s (}I~0>>00~~0~'~~I~~tt 40~000 so<<0~<<~~~0~I~I 1st I}la>I tet<<I~~~~~~~~~I~~~~~~~~~~~I~ta~~~~~Cori>>0 ii~~'~~~~~~~~~~~~~~~~~~Ae'0~(~~~~~0)~~~tata~}4}00~~'I)d~~~~~~~~~~I~~~(~~~~~~~~~~~~~or)~~~I~ssh(1~~~~00~~~~~I~~~r~~I~~~~~solo<<01~I~I~I>>I~~~<<~~~~~~,'~0}eq~~0At ease co j~~r"~~~'ii'~I~~I~Iso<<~~~1st~s~~~~so~~~'s>>}00~~~'<<I~'i~~i~~~0)~~~~>~ovol OA~~~I>>~'i
~A A~A A~A~~0~~~~I~I I R W 1)..aiiii i~~~l~~l FigUre4: Plant B: Design Basis OBE Note: The SSE was defined as twice the OBE OS 0.~0)L O.I 0 0.)Oa4 O.~rcRIOD, (~~P~rIo~
Figure 5: Plant B: Design Basis OBE ISRS'BE Peak=1.1g (5%damping)SSE Peak=2.2g (5%damping)Beat-to.Exterior Elev.321.0 in.w.e e 2.5 0~~Cl 2 a)0 U Le 0.6~~I~~e~~~~~~~~~~~~~~~~~~I~~~~~~~I~~~~V~I~~~~~~~~~~~~~~I~~0~~~~I~~~~~\~~~VI~~~~~~~~~~I~~I,~~~I~~~~~~~~~~~~~00~~I~~~~~~~~~)oooo~I)~)~~~~~I~~~I~I~~~~~~I era~oee~~~~~~~~~~~I~~~"I'~~~~~~~~~~I~IO eo~~00 I~~~'00~~~~~~~~)~~~~r')ei~~~V~I~~~~I~V)v~~~~~~I~~~~~~~~~~~~~~~~~~~~~~~)'I'~~~~~~~)~~I~C~~~~~~~r~~~~~~~~~~~I~~~~~~~~~I~~)~I~~~~~f)~V)~I~~geo)I s~~~~I~~~~~~0 I~~I 00~~~I~'~00~~~)~~~~~ee~00~~I~~~00~~~~~~~00~)~~~~~~~~00~)~r,'~~00~h~I~I}~)~~~~~f'~~~~~~~)~~~~~hysae~~~~)~~~~~~~~~v~I~~~I~~I}~~~~~~~v~~'I~I~~~~I~0~I~~~~~\~~I/~00 re~~~I~~~00 I~~~r~~~~~~~~4~~~~H I~)I~0)~~~~~r~)I~0~~I v~I~~~~t~00~)00~I}~~00~~~){}I~tot~~~~r~~~00~~r I~~I~~)'I)00)>>II~$~s~~~~~~V'"~~~~~~I~~)00~~\~~~~~~~~~~~~~I~~~~~~~~~~~I~~~~~~~~~~I I~~~~~~~~I~~~~~~~~~~~I~~~I~~~~~~~~~~~~~~~~~':"" 08K HORIZOHTAL ..".'.':~~~~~~~)~~~~'-'RUCYURAL'OALtRXG OX~~~~~~\~-'-':.':::::::-I Component Damping OS%Oem i})g~I~~~~~~~~~~I~0~: '!": 2,0X Damping~~~~~I~Ot~~~~).GX Dam ln)4.0%Daml}lna I--:~~~~I~~~~~~\~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~0.01 0.1 Period, t$ec.) Figure 6: Plant B: Median Centered SSE ISRS X 10 (p 1.0.el/Ld o o.67.u 0, Cl 0.Oe2 0.1 10 Legend: Enveloped Zn-eennnn. Response Spectrum 10 Freauency (Hx)Notes: 5.0 0 Special Dashing accelerations in g's 10 Reactor Building, USI-A46 Analysis External Shell, Elev.317' 1 e Figure 7: Diablo Canyon (Plant C)Spectral Comparison 12$0e l jo Main frequency range for equipment and piping 8 r O co g 6 g z~et rL CO Ae~~I~0~0~~~~~~~~~Seismic qualif jcatton basis 84/, sit~pecific ~~~o ohio~~0 COo So'requency (Hz)~~a f Peak+>sR5 l0~7 e QRkl-p 7 10 Figure 7-31 Comparison of Qoor response spectra for equipment qualification for the containment building, interior structure, El 140 feet, east/west response.Pacific Gas and Hectitc Company Diahto Canyon Power Ptant tang Tenn Sehmlc Program t t Figure 8: Diablo Canyon Ground Motion 5%Damping O co 1.5 Cl co CO 1988 Median I~Hi i I I l I/I//I//1977 Hosgri evaluation {N~rnari).1988 84th Percentile 0 2 5 Frequency{Hz)10 20 Figure 7-2 Comparison of the 1988 site-specific median and 84th percentile horizontal response spectra vrith the 1977 Hosgri evaluation (Newmark)response spectrum.Pac Tiic Gas and Electric Campany Ohblo Canyon Power Plant iong Tenn Seismic Program l it!I!Figure 9: Plant D Auxiliary Building lSRS (6%damping)AUX SLOG HORTK SOUTH OTRKCTTON tt OBK t OCCCWIAT!00 OOECTOVO.TTOTHT s OP P 0 l 0,0 O,h 0,4 l 0 4 0 4 0 4,0 l~CO.....T-...~Zo000 t~tji00 t jhlodiL-SoLo =~i=GAP lob00 t , t.t le$00.t-4-t C t C.K ltl00 t.L K t Jl A.Xc lt000..b 10~0 H Oo800 t G t 5 t'tl00 t't ttb btItb Ib t'G t OOOSO ZOo 40o bOo 100o o~oeoooo~~tooeoeoo~ooeooo~oooooooo ZO000 le 800...lob00 o o 1 etOO ,~TOesigh St~is~o~~~o le 000 0 1/~o Oo800 Pob00 gal.xs$5 I~Ooi00 bk 1 Otl00.t t Oo t~ettt~teto~~~~~ott~ttttotttttt ~tttottttoootootootteoo ~otoot~t Ool Ool Oot Oob loO ZOO boO boO 1 FRKOVKH(:Y (HZ1.~I 0 o OOZOO~,~~~t Oo oo~eoooo~ttoe~o~oo~ooo~o~ot~oooooo ZOe tOe bOo 100o.HpU Fc'(ug.5 W~~v isa.t~d" g r ATQ-Jo~y+ghcg~g DArtP(~~.ihiicho('TTh hktoeeo-ksi)o-9v'is cled I~lecVjA~CPethic~i iD 4)'behh)T.Bets>Oak.=i<g q i>,~q.P g=0 CFOi/(g5=0 Qb C~"l~.6,8oi-~Fichu~lo Figure 1Q: Plant D, Comparison of Ground': Response Used for Design Basis and Median Centered Analysis Comparison ofGRS and Reg.Guide 1,60 pga=0.10g jg>>>>t'w 0.35 0.3 0.25 U g 02 8 IQ o 0.15 0.1 0.05 ((~WAY))sjr" F>k"i4>>'.).>>~p~~piK%N vP)nn peak;n'h.s.L@~>";rj'j n Ls$+)'>In: s C>>>>Fp~r).>>.i@+A sa@ff: f'>j'jW...g.,>>4 s>>>".$j@~Vg~;;, k~~~~4':~~
>)q.,,~s 5%84<4 s)L>>'s:,jQQ>>
p)+s<<A~'" PPÃ4~3>If'n
~.<5~&4'wyqI.n, SP pjre LES'~4p)-., n>>rjr;g,>><sP)6j.;'<~use~'gs+IIII: k)," sr)$.f~t4>44<<(g,)>r Nor r>sr'(4i>g.Sks re~.NXI'1'('ags>8);,a)(((++pc.
an'.i>r>IC('.:4 Ik>j>>S)n>>pz,./n 4.:"Nj 5 a>'(,'><Design Basis GRS 5%Reg, Guide 1>60 pga 0.10 g at 5%I)es 0 0.1 0 I)~ikiksl~j 1.00"Pc-10.00 8:m'5 8'c4%100~00 Frequency (Hz,)gggil5 at I04 0.I3 OUTLIER TABLE-INCLUDES A46, GROUP B EIN MCC MCCD MCCH MCCJ MCCL MCCM 52/BYA 52/BYB 52/RTA 52/RTB BUS 16 DESCRIPTION Motor Control centers C,D,Hand J Motor Control Centers L and M Reactor Trip Breakers and Reactor Trip Bypass Breakers Bus 16 Switchgear REQUIRED FUNCTION Distribute power and circuit breakers provide isolation.
Distribute power and circuit breakers provide isolagon.Trip Reactor Distribute power and circuit breakers provide isolation OUTLIER ISSUE These MCC's are fker mounted and are 15 deep.Per the GIP an MCC must be 18 deep or be top braced.A number of the anchors have significant exposed length, so the anchorage embedment may not meet GIP requirements Block Wall Interaction Bus 16 is adjacent to cabinet ARB1RC16.The clearance varies from 3/8 to almost nil at exposed bolt heads.Bus 16 contains essential relays so this configuration is an interacgon outlier because of the possible impact of the cabinet.INTERIM ACCEPTABILITY This caveat resulted from an SSRAP concern that there were no single section MCC's at data base sites less than 18 deep that saw ground motion on the order of the SQUG Reference Spectrum (0.5 g ZPA).Since then, the database has been expanded.Sufficient evidence is available to demonstrate capacity above 0.2 g.Ground spectra for MCC's low In buildings such as these.Anchorage calculations were performed using knockdown factors for low concrete strength, essential relays and unknown anchor type.The reductions were 0.75 x 0.75 x 0.6=0.3 (base alhwable)and the result was a margin of 1.19 which is considerable considering the reduction taken to meet the GIP criteria, the embedment depth should be veriTied and a bolt tightness check made.The final report for EWR 2813 stats that the anchorage for MCCM has a factor of safety>10.The Reactor Trip breakers fail open (Reactor Trip).They open on loss of DC power and loss of MG sets.No credible failure mode exists for this scenario.Bus 16 contains essenual, chatter sensitive relays.The concern is that rack to rack impacts can cause relay chatter.It is not likely that potential Impacts between these cabinets.The relay cabinet is mounted at the end of BUS16.BUS16is1M long,58 deep,76 highand weighs about 15000¹.The relay cabinet is 70 tall, 24 deep and long and weighs about 1000¹.The sviitchgear cabinet will not displace much at ail along its iong dimension and the relay cabinet may impact it but with little effecL This is purely a SQUG concern and outside of the original design basis.RESOLUTION PLAN/SCHEDULE Finalize documentation of capacity In 1997.CATS R05824 Verify embedment and bolt tightness during 1997 refueling outage.If necessary install modiTication during 1999 RFO.CATS R05825 Resolved Bolt cabinets together during 1997 refueling outage.CATS R05826 RESOLUTION DOCUMENTS S8A Analysis 93C2769C022 Revised SEWS 9/30/98 WO¹'s 19701247 and 19701248 veriried embedments and torque.Need letter justifying acceptance (Dave Wilson/MBF)
PCR¹97435 DACE-97423 S&A Cal.Reviewed and accepted.Outller closed.Embedments and torques acceptable.
Updated SEWS 3/17/98.Outller closed.Documentation provided by 12/7/98 Itr Wilson to Fitzsimmons Outller clo.Cabinets connected with welded cgp angles.Install.Complete 11/97.Updated SEWS 3/17/98.Outlier closed OUTLIER TABLE-INCLUDES A46, GROUP B Rev.4, 4/IS/99 EIN 90/MCCC 90/MCCD TE409A-1 TE409B-1 LT-504 DESCRIPTION Current Umiting Reactors RCS Loop A Hot Leg Temperature Element RCS Loop B Cold Leg Temperature Element S/G A Wide Range Level Transmitter REQUIRED FUNCTION Must conduct current and provide fault current limiting.RCS Hot Leg Temperature Indication RCS Cold Leg Temperature Indication Required for S/G A Level OUTLIER ISSUE Two issues, the SRT judged the cabinets to be fairiy flexibl (<8 Hz), therefore 1.5 x BS vs.Fhor spectra was used.The FRS exceeds 1.5 x BS.Also, the cabinet structure is questionable due to the latticed panels on the front and back.Cables in BW trays Cables in BW Trays Cables in BW Trays INTERIM ACCEPTABILITY The latticed (similar to expanded metal)panels on the front and back of the cabinets require additional analysis to determine the bue capacity of the cabinets, or the addition of stiffeners.
The capacity may not quite meet the current Reg.Guide fhor spectra, but would easily meet original design spectra.Temperature indication is desired to monitor cool down rates and reactor core delta T's for natural circulation.
Should hop A indication be lost, hop temperatures can be obtained by manually reading the resistance of other RTD's in the RCS loop.The process involves obtaining the proper measuring device, lifting leads in cabinets in the relay room, taking resistance readings and converting those to temperatures.
Although this Is a fairly simple procedure and has been performed in the past, it is not a normally performed procedure.
See TE409A-1 Other wide range level indication devices are available, but they have power interdependencies that may make them susceptible to other single failures.Should it be necessary, S/G A viide range level can be obtained by manually reading the current loop associated with loop LT-505.This involves obtaining the proper measuring equIpment, lifting leads in a cabinet in the relay room, taking a current measurement and converting that to a level reading.Although the process is simple, it is not a normally performed procedure.
RESOLUTION PLAN/SCHEDULE Perform additional analysis to determine capacity by end of 1997.If modification is necessary install during 1999 RFO CATS R05827 Perform additional analysis to determine capacity of bhck walls.IPEEE analysis showed additional capacity well above that reported during IE 80-11 resolution.
Procedure will be finalized In 1997.If modiTications are necessary, they will be performed during 1999 RFO.CATS R05828 See TE409A-1 CATS R05828 Same as TE409A-1 CATS R05829 RESOLUTION DOCUMENTS SEA cahulathn No.93C2769-C421 Resolution to Include taking manual reading NR Th/I'C provides CR Indication hold at no had tave until ready to use RTD readings.=change SSEL-Add NR to SSEL ERIC.4 Rev.4 SSEL Rev.1 change SSEL-Add NR to SSEL, ERIC.4 Rev.4 Can use SAFW flow and pressurizer press have already changed FR's to alhw use SAFW Ihw is GIPed.Add SAFW Fhw to SSEL SSEL Rev.1 4/23/99 STATU Submitted CC F 7/28/98.S&A Analysis complete.SEWS updated.No modifications.
Outlier closed DaveWilson PCN.ER-SC.4 Rev.4 signed 2/19/99 SSEL Rev.1 4/23/99 No SEWS updates required.CCVF 4/23/99 Outlier closed Dave Wilson PCN.SSE~Rev.1, ER~~Outller closed Dave Wilson SSEL Rev.1 4/23/99 Outlier closed OUTLIER TABLE-INCLUDES A46, GROUP B Rcv.4, 4/I589 BTRYA BTRYB PT<68 S/G A Pressure Transmitter S/G Pressure Battery Racks A and 8 DC Power Cells lack dose fitting spacers between ce!IS and the anchorage of the racks for north-south loads does not meet the GIP requirements BW outlier The battery racks meet the current design basis for seismic loading in both horizontal directions.
Investigation of block walls for the IPEEE showed additional margin above that evaluated during IE Bulletin 80-11.This analysis shows that the walls are acceptable for the original design spectra and possibly for the current Reg.Guide spectra.A modification to meet GIP criteria Is In the design process and will be completed no later than the next refueling outage (1997).CATS R05830 Same as TE<09A-1 CATS R05831 Qualify wall 971-14I PCR I/97438 installed mods.1997.Need new mod.for larger battedes.Buying qualified racks;install In 99 RFO.wa.'s 19702770, 19702771 DANE-994)41 qualiTied the wall therefore removing the interacfion concerns PCR 98486~installed nei~seismically qualified racks in 1999.Saws updated 4/99.Outller closed Wail seismicatty qualitied by analysis.SEWS updated 4/99.Outller closed 32/DGA Westinghouse CRN-1 Relay In DGAEC Demand>GERS for all states The relays neet the demand based on the original ground spectra induding in cabinet amplification for all operating states of the relays.Therefore they meet out current design basis.Analyze cabinet to determine actual demand.If mod.required, install In 1997 RFO.CATS R05832 PCR ff974)31 Door stiffener mods.Installed 11/97.Updated SEWS 11/98.Outller closed 32/DG8 Westinghouse CRN-1Relay In DGBEC Demand>GERS for all states The relays meet the demand based on the original ground spectra, induding In cabinet amplification for all operating states of the relays.Therefore they meet out current design basis.Analyze cabinet to determine actual demand.If mod.req'd.Install in 1997 RFO.CATS R05832 PCR 97%31 Door sfiffener mods.Instal 11/97.Upd SEWS 11/98.Outller dosed 42/3504A 42/3505A Westinghouse Size 2 DC Motor Starter In M@V3504A and MS I V3SOSA Cabinet amplification unknown, outlier if>1.6 Require further analysis to determine cabinet amplification.
See Group 8 below wafi ts Valves are Group 8 outliers (bbck wall)-see discussion seismic.for Group 8 below and in the SSEL Report CATS R05836 W.O.19801843 DA-CE-9H95 PCR 98422 Hot short issue still Walls seismic by analysis Outller closed KIX/DGA K1X/DGB K4-A K4-8 Allen Bradley 200E0021A Relay Potter Biumfield 6739-83-A2 Relays In DGACP 8 DGBCP In DGACP 8 DGBCP No Data No Data Need to Investigate
-either get data, test relays or replace with relays of known ruggedness.
Need to Investigate
-either get data, test relays or replace with relays of known ruggedness.
Determine capacity and either accept or replace by the end of the 1997 RFO Determine capacity and either accept or replace by the end of the 1997 RFO PCR 97%32 PCR 97%32 Relays replaced 11/97.Updated relay eval.Shts 3/1 7/98.Outlier closed Relays replaced 11/97.Updated relay eval.Shts 3/17/98.Outlier closed OUTLIER TABLE-INCLUDES A46, GROUP B Rcv.4, 4/15/99 OSR-A OSR-B Allen Bradley 200E400Z1A Relays In DGACP&DGBCP No Data Need to Investigate-either get data, test relays or replace Determine capacity and either with relays of known ruggedness.
accept or replace by the end of the 1997 RFO PCR 97432 Relays repla 11/97.U pd relay eval.Sh 3/17$8.Outller closed VFX-1-A VFX-1.B VFX-2-A VFX-2-B Allen Bradley 200E30021A Relays Allen Bradley 200E300Z1A Relays Cable Trays in Aux.Bldg.EI.253 In DGACP 8 DGBCP In DGACP 8 DGBCP Cable Trays No Data No Data Hanger AB34 does not meet the umited Analytical Review requirements due to the bending moment developed ln the horizontal member at the top of the hanger that spans between the anchors.Need to Investigate
-either get data, test relays or replace viith relays of known ruggedness.
Need to Investigate-either get data, test relays or replace with retays of known ruggedness.
Upon further investigation and inspection by D.Zebroskl and S.Anagnostis it was judged that even ff this hanger was to be removed (fall), there was sufficient support provided by adjacent hangers to maintain the current configuration.
This is an extremely congested area, with cab'le trays branching and dropping Into BUS 16.Determine capacity and either accept or replace by the end of the 1997 RFO Determine capacity and either accept or replace by the end of the 1997 RFO Finalize analysis and either accept or modify by the end of the 1997 RFO.CATS R05834 PCR 974I32 PCR 97%32 PCR 974I35 DWG 33013-2746 DANE-97488 Relays replaced 1187.Updated relay eval.Shts 3/17/98.Outller closed Relays replaced 11/97.Updated relay evaL Shts 3/17/98.Outller closed Support enhancements Installed 11$7.Revised OSVS 4/3/98.Outller closed AB2710 Cable Trays in Aux.Bldg.El.271 Cable trays.12'able tray is supported on Cables were investigated as part of the block wall effort a bhck wall next to the fuel pool.Ses bhck wall discussion in SSEL Report and Group B resolution.
CATS R05837 ER-SC.4 Rev.4 SSEL Rev.1 Procedures Installed Outller closed INT253 CLEAN INT253 HOT Cable Trays in Int.bldg.Clean Side EI.253 Cable Trays in Int.Bldg.Controlled Sids EI.271 Cable trays Cable trays Block Waff Problems Block Wall Problems Cables were investigated as part of the block wall effort Cables were investigated as part of the bhck wall effort See bhck wall discusshn in SSEL Report and Group B resolution.
CATS R05837 See block wall discussion in SSEL Report and Group B resolution.
CATS R05837 ER-SC.4 Rev.4 SSEL Rev.1 ER-SC.4 Rev.4 SSEL Rev.1 Procedures installed Outller closed Procedures installed Outffer closed INT271 HOT Cable Trays in InL Bldg.Controlled Side EI.271 Cable trays Block Wall Problems and tray Cables were investigated as part of the block wall effort span>10'ue to missing horizontal support member See block wall discussion in SSEL Report and Group B resolution.
CATS R05837 ERIC.4 Rev.4 SSEL Rev.1 Procedures Installed Outlier closed OUTLIER TABLE-INCLUDES A46, GROUP B Rev.4, 4/IS/99 INT278 CLEAN INT298 CLEAN INT293HO T Cable Trays in Int.bldg.Clean Side Els.2788 298 and Controlled Side EL.293 Cable trays Block Wall Problems Cables were investigated as part of the block wall effort See block wall discussion In SSEL Report and Group B resolution.
CATS R05837 W.O.19801843 F-Une fix/278'-4 PCR98422 ER-SCA Rev.4 SSEL Rev.1 Procedures installed Outller clos Group B See individual items below.See individual items below.No loss of safe shutdown function.See SSEL Report for Loss of preferred mode of discussion and details.operagon.See SSEL Report for discussion and details.Perform time and motion studies and cost/benefit analysis to evaluate possible enhancements.
Complete studies by end of 1997.CATS ID R05837 Complete 12/98 4613 4614 4663 4664 4773 5735 5736 5737 5738 3504A 3505A Turbine Bldg.SW Isolation Valve Turbine Bldg.SW Isolation Valve Air Conditioning SW Isolaffon Valve Turbine Bldg.SW Isolation Valve Air Conditioning SW Isolation Valve S/G A&B Blowdown Sample Isohtion Valves S/G A 8 B Biowdown Isolation Valves S/GA&8 Steam Supply Valves to TDAFW Pump Service Water Isolation NO, Must Close.(faff dosed on loss ofDCorlA)NO, Must Close, (fail dosed on loss ofDCorlA)NC, Must Remain Closed, Open on LOOP.Group B AOVon 3/4 tine.Valves too flexib!e.Group B Group B See above.SQUG indusion rules for AOV's specify 1" or larger line.The line is fairly well supported vertically, but the valve can put a torsional load on the pipe that should be evaluated to meet the intent of the caveat.This is a new SQUG criteria-the current license bash does not Indude any such limit on pipe line size.Pipe stress.See above.See above.IB 278'A South of waits 2I,3I,4I, Sl See above.CATS ID R05837 See above.CATS ID R06966 W.O.19804454 99 RFO See above.CATS ID R06966 See above.W.O.19801843 SW Flow cal.DA-ME-96097 ER-SC.4 Rev.4 SSEL Rev.1 AP~.1 PCR 98452 Rev.1 DA-CE-99-108 Rev 1 DUF 994071 ERIC.4 Rev.4 SSEL Rev.1 Fix wall at F line PCR 98022 DA-CE-98495 ER4C.4 Rev.4 SSEL REv.1 Procedures installed Outlier closed PCR 98052 Rev.1 installed valve opera restraints.
SEWS updar 4/99.Outller closed.Procedures installed Outller closed Procedures and mods: installed Outllor closod OUTLIER TABLE-INCLUDES A46, GROUP B Rcv.4, 4/15/99 MS@V3505A Motor starter cubide for MOV 3505A Valve must remain dosed, Opens on LOOP.Group B See above.See above.W.O.19801843 Fix wall at F line PCR 98422 DACE-98495 ERIC.4 Rev.4 SSEL REv.1 Procedures mods.Instr Outlier clos 3410 3411 PHBG S/GA&B Atmospheric relief valves Pressurizer Heater Backup Group Must not FO, NC and FC on lossofDCor IA Pressurizer Heater Group B See above.See above.IB 278'A South of walls 21,3I, 4I~5I See above.See above W.O.19801843 See above.CATS ID R06966 Fix wall at F line PCR 98-022 DA-CE-98495 ERIC.4 Rev.4 SSEL REv.1 Procedure change: Pull fuse ERIC.4 Rev.4 SSEL Rev.1 Procedures and mods.installed Outller closed Procedures installed Outlier dosed}}