ML12338A483
| ML12338A483 | |
| Person / Time | |
|---|---|
| Site: | Indian Point, PROJ0690  |
| Issue date: | 09/19/1997 |
| From: | Charemagne Grimes Office of Nuclear Reactor Regulation |
| To: | Walters D Atomic Safety and Licensing Board Panel, Nuclear Energy Institute |
| SECY RAS | |
| References | |
| RAS 22105, ASLBP 07-858-03-LR-BD01, 50-247-LR, 50-286-LR NUDOCS 9709240243 | |
| Download: ML12338A483 (7) | |
Text
United States Nuclear Regulatory Commission Official Hearing Exhibit Entergy Nuclear Operations, Inc.
In the Matter of:
(Indian Point Nuclear Generating Units 2 and 3)
ASLBP #: 07-858-03-LR-BD01 Docket #: 05000247 l 05000286 Exhibit #: ENT000097-00-BD01 Identified: 10/15/2012 Admitted: 10/15/2012 Withdrawn:
Rejected: Stricken:
Other:
ENT000097 Mr. Douglas .J. Walter's Sept~rnber 19, 1997 Submitted: March 28, 2012 Nuclear Energy fnst itute 1776 I Street , NW Sui te 300 WashIngton , DC 20585
SUBJECT:
OfJERr~INAnON OF AGING MANAGE:14ENT REVIEW FOR ELECTRICAL COMPONENTS
Dear Hr. Walters:
Dur'lng the Nuclear Regulatory Cornmission staff's review of the Nuclear Energy Institut£~'s t~£I 95-10. "Industry Guideline for' Implem~mting the Requirement?
of 10 CFR Parot 54 - The L1cense Renewal Rule," the need was 'Identified for guidance on whethet' selected electrical components are subject to an aging management review. NEl addressed a number of the components in i"s letter dated December 24. 1996 , ConSistent with the staff's aODroaCh in its February 27 . 1997 . letter to prov'ide positions on significant 'issues .
ossocl(';ted with the license renewal regulatory guide and NEI 95,10. enclosed please find the staff's pos'ition on the ag 'ing management review requirements for' select(~d eleetricJl components, The t"ecommendiJtions in the enclosed position should be c0l1sidered when reviSing NEI 95,10, Sincerely, Oriqinal signed by:
ChrIstopher I. Grimes, Director license Renewal Project Directorate Oivision of Reactor Program Management Office O'f Nuclear Reactor Regulation Project 690
Enclosure:
As stated cc: w/ene]: See next page Oi stt:'lJ2.ut j on:
Bocket . FillS! S. Oroggitis, 0-3D23 E. Sull ivan 0-7 D4 PUBLIC S, Peterson. O-12GIB POLR R/F G, Lainas. 0,7026 S. Collins/F. Miraglia. O-12G18 g, Morris. 0-9F23 R, Zimmerman, O-12GIB J, MoorelE, Holler, 015818 M. Slosson G. Mizuno . O-15B18 S. ~i(:ri ss S Meador, O' 17G21 G.
B.
Holah~n. 0,8[2 Sheron, 0,7026
<:' ,./
R. Correr1iL O-lOA17 M. Mayfield, T-IOEIO R. Wessman, 0-7E23 A, Murphy. T-IOll
,J. Strosm der , 0. 704 H. Brammer, 0*7H15 L. Shao. 0,10020 G. Bagchl, 0-7H15 J, Calvo. 0-7E4 R.t. Gi 11 . Duke Pmver D. Thatcher. O,7E4 B,W , Oot"oshuk. BGE PDLR Staff (PTKuol LU1 Di sk)
U~erI~ STATES Nu.eL~ARRIGULArOflY eOMM8SIIQN W4\$j"jIN(!!l'Ole, D.C . ~~1 Septernb~r 19 . 1997 Mr. Doug 1as ~J . Wa 1tars Nu~lear£nergy Institute 1776 I Street, NW Suite 30Q Wa$h;lngton, OC205B5
SUBJECT:
DETERMWATION OF AGING MANAGE}tENT REVIE~J FOR ELECTRICAL CQf1PON[NTS DE?tl r (41" , ~lIa 1ters :
During the Nuclear Regulatory Commission staff's revlffi.j of the NIJc1ear Energy Inst!tute'$ Nfl 95~lO. "Industry Guideline for Imp'lamenting the Requirements of 10 eFR Part 54 " The Ucense Renewal RUle," the need was i dent Hi ed for glJl dance on whether se lectad el ectri ca 1 components are subject to an agirig management r'ffrvi ew. Nt! addressed a rwmber Of trl componf.mts 1nits 1etter dated December 24. 1996, Consistent witrl th~: sUff's approach 'In its February 27. 1997, letter to provide positions on Significant issues
[i$sociated with the "license renellJal regulatory guide dnd NO 95-10, enclosed pleas(~ find the staff's positwn on the aging management revi~.M requirements f()f $E~1ected electrical components. The recommendations in the enclosed position shOtild be cons'ider$el when revising NEl 95-10.
S'incerely,
(~",-c~ ,
,j J-C}eJ,.AJ,J,/\
Christopher I. Grimes, Director License Renewal Project Directorate Division of Reactor Program Management Office of NUClear Reactor Regulation PrOject 690 EflC"losuY'e: As stated cc: Iilt/enel: See next page
NUGLEAR E~ERGY INSTITUTE (Nt!)
ProJect No, 690 cc : Mr. Dtmrri s Harf'ison U.S, Dppartment. of Energy NE .. 42 Washington. DC 20585 Mr, Douglas J, Wa'lters Nuclear .£nergy Institute 1776 I Street. NW Suite 300
!~aSnH19_0n.
.. I ... . ' '. t DC"
. '. '~0006 to< .. . '.
Mr . Richard P. Sedano , CommiSsioner State liaison Officer State of Vermont Department of Public Service 112 State Street Drdwel~ 20 Montpelier, Vermont 05620 ,, 2601
Oeterrnhllng if tr~flSformefl'$. f~$uJ 1ndicitil"l¢J lights, heat tracing, electric neatel'"s, ~irldreCO'lllbiners are subj~ct to an aging mal1algement review.
This issue rmlates to the gut~inCI provided In the Stltements of ConsiJerltlon
{SOC} 1n whkh the COlml'lisslc)8'I concluded that an ~9ifl9 management \"'eview is required fur Dilsive. longftlived structures Ind components within the scope of HUt Hc~~n:!Hii ,(enf;tw~l rule. Appefldh B of NEl 95**10 <!ddresses Uds requltement by i(',lent Hying typtCi 1 structure I component, ilild COfllllTlOdHy grouplngs and a 1eterminat'ion as to whether they require an ;aging m~nigement review. Several electrical COlllplHumts, iU identified above, were not chssif1ed in Appendix B.
The rule fn '54.21(a)(I), states that ~structures Ind components subject to an aging management review shill encompas5 those structures and components (i)
[l]hat perform an intended function IS described in 154.4, without moving parts or without a change in configuration or properties.>> The SOC uses the ter'l'Il "Pi'!i3S~II@fI to r~pr";;:sent th~:;e clur£u::tel"'istic$ for cOl'iverliance , The description of "passtve n structures and components incorporated into
§S4 . 21(a)(1)(i) is used only in conjunction with the IPA review in the license renewal process. The SOC l!ccomS,HlI'lying the renewa" rule states: liThe Commhsion has determilled th~t pil\ssivestrudures arid -:ornpovilmts for' which aging degrwd~thm is not readHy monitored ar~) thou~ that perform an intended function ',,qHhout fflc}v'ing parts or ii d'lange in ccmfigurfJ,tion or properties." (60 FR 22411). l'h~ SOC also shtes: iI[T]he COmfllls;S101'l has concluded that "a change in configuration or propertie5~ should be interpreted to include "a ch~nge in stite~tl which is iii term sometimes found in the literature relating to "pasl;IivI?"
154 , 21(&)(I)(t) Ixtludes I variety of alectr1cal and instrumentation and control (l&e) structures and components from an aging management review for renewal such as motors, diesel generators, alr compressors, pressure transmitters. pressure ind1c~tors. water level indicators, switchgear, cooling fans, transistors, batteries, I:wetlkers, n~hys, switches. power inverters, cinutt boards. battery ch~rger$, and power supplies. The SOC provides the following discussion as the basis for excluding several 01ectrical and 1&(
devices from iHI aging management revie~'$: "an electrica*i n~1ay can change its confi9uratiofl, illnd a batt~l"y chamges its ehctrolyte properties when discharging" and Ha transistor can *chlnge its state'," The SOC also provides the following discussion as the basis to include electrkal cables in an aging manag~ment review; "thay perform their intended functton without moving parts Dr without. change in configuratiDn or properties and the effects of aging de9radit~on ftH~ thase compol'lEll'1h t\r~ flot r~adUy lnoflitorab1e . " (60 FR 22477)
While §54.21(~)(1)(i) excludes m~ny el~ctrical and I&C components from an
&gil1Sl rllan~gemel"lt review for renewal ~ it ¢lIsQ stente£ that the exc1us'ion is "not limited to" {JInly these components. -The staff has conshjered the aghlg Attachment
m~n~9~Mnt rtv1ftW reqeAlremnt$ for trai'lsfo~r$ ~ fij5.ES>> indicait'.lng Hgbl$,
h'lttr~cif.g,'ltctri( h~~delt'$ ~ and reco~bifier'$ with :r~$p~et to th~
d~f1flith;m$, ba~kgrOtmdJ iifid sp~d fic ehu::trictll e)(aIflPl~$ in the Hcel'ls~
Y'snewalrule (¢h~~lJitbreakersg r~hysr. motors, ch~cuit D(Jards p etc.). B~sed on the con$idl!v'~ble. (H!:iCUU10n provided in the rule and S()C~ t~e staif cnmJ)atli\}Q the f!l@ctrltiAl CQlflptme.nU id~iltHh~d ibov~ with the llJiumples
~xpncftl1pt'(!'!,ddld in the f'!4h'~ in te~"msof h~~ the p~rfQrmaWiCe of their tnt~tl(itd funttions would b~ l!IcM~ved if¥d ~hether iging d-egradathm Qf t!le$!f; c~mpofl~nh ~oYld be fBadily monitored using (IJIAr@ntly Jlivai hbh techniques, jn f! simih,r Wi,V by WMth the e){amplu in the ruie (circuit br£HiKe\>"S; rala:ys .,
~~Uche~, f!tc.) would h~ lMm1to,..~d, These t~C;hfdqW3IS include performance* or c,~m~H iCJI1 ~n'itt}rin~ by t~$t1ng .nd m~1nt~nince(sur'ven hnee p~ogramsthj1,t lnclude 1nstrwnent checks t functH.II'Hll t~st$!ca!ibratlon functlOl1al tests .* and f4!!SpOl'lSe t irne ver'Hh:aiioVl tests. lherasuhs of thes~ tests and perf()rfll~nt:e mOrtlto'ring prognll¥ls Cin be al'l~lyzed and tnJ!l'Ided to f.H"'ovich,! an indication of aging de9r~dathm for these e'lectrical CQfIlIHments as discUSSf,2d below:
Transformers perform their intended flH-tiofl through a change in state by stepJ}ing dO~ill'l voltage from high(H to ~ lower U value, stel}plng Uf> ',oHage to fa higher vahl(!!, Ot' providing is()htio,~ to <l load. Transformers perform th~ir' inhrided function through i~ Chai:'ft/ta l n Sf ht~! s vmi hir to switcng6aAf' 9 POWJW' suppli as, baUery chargers, and p()Well~ irlVe~~ ters} which have been )xc1uoed in §S4.21(a)O)(i) from n aging maI'H\gefi'lil":nt ~'Endew. Any degradation of the transformer's i.bfl njf 'to perform its hltellded fl,!ncti r.m is readily monitorib1e by a change in the ehu::tl"ical perftJ~..i'!'I.ai'lc~ of the ty'i*Mformer and th;e as!.),octated d I"cy :i h. Tr~nH"Hl1g ehctr*tca i j:Hlr~i!'!eters meuured during tri:lI'lsformer
- iuV'ven hl'lce ~nd ril~intel'HU1iCe such as Onbl e test results t and advanced' monitoring fl'lethods. such u hlh*ilred t.hermography. iilnd electrical cin:;uH dlaf~ acteri ?~tit:lfi and dhgnos h provide a di rsd 'indicat i on of the p~rf,ori1ill.mte of th~ tY*ilnsform~r . Th~r~fQril:?9 triulsformers ire not
$\jbject to an ~9ln9 management teidew.
tm:itci1itilng 1191Ms (ctued rll(1mlimt} perform theh" intended function through a change in shte by dhp1lilying readily rfionitorabl~ visible 11ght when '
energi.zed with sasffident voltage. Indicating lights p~rform their h'it~nd¢td function throlJgh ill ch~l'ige in state simihw to transhtofs tind cir(':uit i:H)iirds 9 which halitE: been (iil~c!Llded in §S4.21(a)(l)(i) from
- Ul ~gin9 mlrt'Higement review. Any d~9ri.1ld<wtiofl of the indicating lights ability to perform U.s in,tended fLmctlon is readily monitorable since the 1 ights (e.g. ? contrt}l if'oom and local IH\vH~l anm.mchtors) typicaUy tHiVf.~ both a v'hual Eand ~udio test capabll ity that is lnit iated Oi~ ~ p~r1odi(; basis by the oper~hr. This se lf-test capa.bility is re1ied
!.IPOi'l ttl prQV'joe I ditect lndici.rUol1 of th~ perf{Hriicililce of the indicating lights, Therefore. indh:illt ing 119hh are not subject to an aging m@lliilgt!ln~mt rev i ew, He~t trd!c~ng perform.s its inter-ded functlon through a change in state by supplying heGilt when @.fIlerghed. for example. to i~ boric illchi s.ystem or a
refuelln~~ Wit~1'" stC,lraage t&)nk/ptplng iii fH'der to maintain i mlllimUIU
!O lut ion tSI!pentul"'e to prevE!f!t boron from ~!tec 1r~Hat i ng out or water 1'rolti freE~.tifl9 in ;un otltsld~ pipe. Heat ~/~ 1t19 pet'forms its intended rlmctlon through a chang~ in shh When energized similar to a power SLIPP 1Y~ bit tery tJ'Hrrger' upOliler irlVIP.rt@fr I ~tc. whi en have been ex, 1~"ded f
"In ~5~.2H a) {1 H o from i f! .iging mafl.ilge@l~V'it r$\1i~w. AflY degradation of the h4!~t biting to perform its int.ended ttuH:'tion is readily morlltored by alarm C If'cuitry (conh"oi roo~,1 iUld local panel .mnrml"lchtors) 61" by suV'v!(;HhulC0 r&quiY'e~nt$ that nloni1;or $olution tempei"'iture on a periodic bash wh1chprovides ill direct lnd1cit~on of th~ f,HH"formance of the heat tracing, Therefore, heat tracing is not subj~ct to an aging inanillgement
."evlew ,
E!e~:trh; heaters perform thefr fnterl(~ed function t.hrough Ii change in state by supplyi ng he~t wiH" rl~I'H:1irg*lxed, for example~ to a pt"essurizer water V01Yl'11e for reactor coolant s,ystem pr~s$ure control. Electric h~atlll!rs iHH'form their intended function through a change 1n state stmilar to a battery charger, power inverter, power supply! etc., that
,.IHlfIga state when energized and which have /)fHHI excluded in
§54.21(ai{1)(i} froITI Q(f\ aging management review, Any degradation of the e1 ectric heatEH"S ~ abn Hy to perform thei r ii'Vhnded fund iar! due to ag1 n9 wiH be readily monitorabie from exhtlng monitoring eQtflpment (voltmeters and active perf orrnaf'lce of th~ eql,lipm(SH'lt in t he circuit) and surveil ]ante r'flQui rements by verifying that the heahrs ~re eMfg 'j zed a.m! hy m~,tHHjring eirCIJit CtHnmt on iil iJeriodic ba s is. HH:lrefore, I!Ilectrlc heilitrs are not $ubj~ct to an aging management review for the intendedfullct 10(1 of supplying heat. The pnusure boundary i nt.ended function would ::;u n be subject to ~n aging management revie\'I.
The staff his i~ho (;(}I, sidered the ilI9ln9 I'i~Mtlgeliient review requirem~mts fot fuse~ and hydrog@1"I If'@combiners as discussed below:
Fuses perform one of their two intended functiDns through a change in c:onfigur'iltion or state of the f use by irl'terruptll19 p('~r;r in the case of a fault or overload in I lD~d in order to provide protection to the t'f:st of thE) eiectrical circYit. fyses also perform a second intended function which is to mainta in electrical continuity during non-faulted conditions. Unlike other 111ctrical components which have simliar cont 1nuity funct ions such is brea!k{~rS , switches, and rehys which have bean excluded tn § 54.21 (1)(I)(t) from In aging management review, degr~dilhtion (If the fuse's <<oint, to perform this intended function due to aging is notr'!il!;\Idily mOl1itorable, Oegrad&ticm of the ruse's intended continuity function rn~y not r~$u1t in detechble losses in associated system safe.ty functions untii degf'&dilltion beco,mes wHlIccept,able.
ThlrefGrl~ the staff believes that fuses are subject to In aging m;anagement I"evi@w.
Recombi ners remove gaseous hydrogsUl from the contih i hmtant atmosphere by combirting hydrogen with (n{ygen to form water. This inte!lded function is ,cca.plisbed wtth severi) component types such as electric heatar
1 '
b3.f}ks,c~bl1ng, Ctiiif$ectionsfetc. As slIch, Y'9COI'llDHlerS sl'io!,&ld b~
con$id~r~4$ ~$, to~)1e){ i!$sembl h15 gala should be evaluated Ofll aphnt sp~cifie bash to d~t!Y'mlll~! if they .!aY'e~ subject t~ an agingmanagenent r~vi~wf'(}r r~m~w'l ,
f$Sl$ia!,4 on thftilb:ov~ uSG~$nwnt; th~ stiilff concl uded that thes~ components. wIth t .he @Xltept10'1 of fus(as and \>'eef}f~bh"ieV's, pel"'forW! th~ir i ;-' t~V1d~d fun(;tioll(~} "
.ith <Vt ch~l1lg~ in cl!)nf 1 glJr~tton/st@te iUld the eff'scts of aging ire readHy
~M:mit~r~4J~trfldth~r~foV'Et, ire not subject to an ~g lilg miulagemfiflt revie\<J.
Electricil!Il Ind IliaC ~tructU.re$ ~lrId (;i}m~)@nenh Ui<'~t ~re subject to aT! aging ma-na9~ment r'evi~1l'b for rentwal ~nd~d~9 but may not be Hmited to: electr"lcal c~ble$ and connections, fuses, el~tric~l iilnd like penetration assemblies. '
¢able tr;aY1>. Il"!d electrical arid UC cabinets, panels, ricks~ frame$~
,nel(~$ulr(u. and other similar COmpOI'Hmt supports.
NB.tJil.ilfLJ:'iru;m!!~dit j W.;.
The r~RC !:itaff~~f.commeflds r"a\ll$ll'19 Appen4h i3 of NEl 95- 10 to indicate that trifl$former'~~. iru:H cating lights, tH:~~t tri1ciV!g, Jl!l'ld electric heiSter's do not require in ~9t ng m.mm~gement raviltJ (I"ccmbinars should remain phnt spedfic) and ttl $tat.* that ehctrical Ellnd Ute ~b'uctul"es and ecmponEll'its subject to an iiginQ n};H'la9!alll~,mt r@view for rerHf,~Ji£l ~ho!Ald i nchtde: electrical cabies and connections? (U$&$, e"ectrical and IiliC penetration assemblies 9 cable traySt and ejec.trical Zti'Hi Ilhe cabinets, p~I'~h. racks, frames 9 enclosuf'fS * .and other
$ imil all" component supports.