ML18023A067

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Review of Westinghouse Electric Corporation Topical Report (TR) WCAP-13632, Revision 2, Elimination of Pressure Sensor Response Time Testing (Rtt) Requirements, Dated August 1995 - Westinghouse Owners Group Program MUHP-3040, Revision 1
ML18023A067
Person / Time
Issue date: 09/05/1995
From: Boger B
Office of Nuclear Reactor Regulation
To: Newton R
Westinghouse Owners Group, Wisconsin Electric Power Co
Shared Package
ML18023A068 List:
References
NUDOCS 9509070068
Download: ML18023A067 (31)
v • d • e


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Jhe ~Rt; staiff has c~r~hittd H:s revil~J of th~ sMbj~ct topical r(l!po1rt t:H"IS*J:iared by ~2eit if>!th@u!E~ Ehictrk Corp@rit i Ori dited P1MgM£t U)~5.

  • The end osm"e ftt@'l.dtdis tITTrii' shff 1'$ $.;llf~il:y f1&ah1itici.ri !lf9i'Jl@}~t.

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tie:l'iti~g~OM£(\\} (l~m11rs G&il)Uf) Pt"Ojr~ truHf.. J(:l.1l{'lli il'#ltdor1 l~ li\\iMch t;§a!S C(JMJ}ile!tif:l-d

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[119*i~etH"id Sif~ty fa,titwres f1ctuat ior1 System (ESfliS) diarm(i:h co1Jh!l b! 11fliv~inittd, Upon @H!!liimiti~g sensor RTT tt*1v1~Mh'OO'i'(j;tnts. tJuiPi t<<it,f! ins ijr £Sf.AS charm~*1 respo11slll! time i,muld ~ verified by St!~llm1i1'MJ &i~o a11ocat~d iuu'HHH" resrwr1s1 Hme tiPith the m~Hisured respm-1:se time t.:rf the t"t1iith1d~r of the ch~m1@l.

iHed (~Iii H.s rte'i"h?i1$

th~ trrformmiticm llH't?snted 111 !tACAP-J.::HS32" Revhfon 2i th rrti1llf'f tfJr.chid~d Utit ilmy :£~ris@r faHure th£it sigrd fkaritiy de9rades s.e1ns~~~ ~'i!SiP@V1$t* ti~ tiM:i b d~ted1i;id di..iid. ng the perfCirma¥lte of,:rt her

mrv~iHi£rlce tG!lshi ~irhidp.viHy calHJir<<rtfori.

t\\ccordfo1fly, the stiff cmu::1l,\\des th&t thlii prf@tii~mce of pe,rh,dic RTT for thi seler.hd prnssur@ amd

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-Htth'd{tted -fr@m T~H:limkil Specifh:.atim1s (TS) am:! that anoc;t({)d se~sor ri!i!SfJff.ifiS@ t h11~s !IIJ!\\i! b used to ifq;rify 1ii1Ct~hh 1 e RTS ai1d ESf t\\S chlllVW1!i1i l rti:ts~o;nsll!?

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TheJ"ftf@r'¢l~ thq,g shff i!i!Ccepts WCJ\\P-13632 1 Rc1vhitli'! t\\ for rfor~.Hlti:Ei hi 1 ic~n£t& il~1i~,d~i.mt i!?P i k1.at follS for in i nghi:ms'f:i 1ir,B~swrt ;vjd ~eater u"iactrn*s

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(d) fow-tri(tu;~iU.t1n 1.111~d §t11H.ches thi1.t LI$~ tipH h1ry tubes, perfora i FHT lft@r hiiU inshHitimi,1u~ ift,in* any i'JJlt1interiirice @r wi-0difh:atfon

,ilCthity that cmild d~r.ai~J<!:l thir& cipllhry t~bes, if 1Jiii\\i"i21bl!f:I i1faiw:1ping is ijSi&d, imp"ier11<,2mt I method to ~sstH"e that the wi<<))ttntfom~t~:rr h at the lr'E?Q!!ired settil"!g iilrtd ciirmot be in~u:l¥ertent1y ch111gdl or p~rfo~ tiydnu 1 i c ~TT of the se~sor fo 11 Oill1i ng each tal 'lbrdion.

~4erforffi g11&riodi,: dtHt m-0t1itrH'"ing c.,f.,lll f~11dei H5h H52, H53,,1H'IO H@dl R@~~1r.H..1~t ~~"fJStiiMr ind dHforiii};r.thl pr~sl.a.ir~ tr.iu1smitters1 for

'i:lrMch wnr ~l h1rhiat hm h ~r!l)ptised, ht,;;1,ccordimce 1,,dth Um 9.!.!!idiv1ce corttgdvi@dl fo R@ii~fJU&it Tec~r,i Bi.ffhrtfo ~o. Iii* i?ld cofltfoue to remihI in fuH comiilhif!lc~ lb*dth s1my pri{jr co11mitments to Buneth1 90*-011 Silpph::r~uit L !llfJS$

FHl-Oil in *fr;JH1smi'tters t1anl!factm"ed by RosiiK~MWilt.n 1\\s if! ;;ilterru;:itive to i)@rfr.H"mifig pe*tiodic dr*!ft m-i:mH.oring of R@Si!ilIDm1t. tlf'arismitt~rs, 1kensee~s rna.v crnnpi~te the follo~c1fog filctforis:

(l) (fi1f11Sl..ffffi! t!iaat optf.!f'@.il]1f'S iiind tedmidam;. i.re ~waire of the Rosemount ttriMmitter *1cs.s of fiH-ofl issue ind mike r.n*tivish:ms to ensure that ti.echrnh::hms; 1i1ow11H.,,r for sensm* respi:rnse time dl.'Igradatiori dwring the perfcn*'fflarroce of cilibratfons ;:ia,d fom::tion~l tests of these transm"itters, i~ld {2:} tf't!ft§hJ1t,i' and r~v1se surveHhm:: tes,th'ig !,'H"oced~n*es, if necessary, t.~ ensmre th.;rt calibrations ar'~ be*i

~erfonii~d using equipffeent des"igned to f>>rovtde r.1 step function or f,:ast Y'iffliJ iri thr:r: process Va\\riable: iiind that calH.ilri.lltions amii fm1ctfonal tests are beh1ff ~Jerformed fo; m~rmer that ililotiS siiriultim~mAs mofdtcH.. ing of bt;th the input and 01.,1tput respcmse of the tnmsriiittr urider tt!st, thus iowi.ng, with rEHisonab1e assuram:e, the n?,coginH'iOfl of s*1g~Hkarrt ?'espons\\S1 time ddgracfatior1.

Should you have ar,y,~ije:rt'lons err 1idsh f1.wther darHkatir.1ni p1e~.se call m,1e at (301) 415-1004, or John Ganiere at (301) 415-2921.

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[Hvisioi11 of !leactow Controls and HMi'l'!aAO Fii!ctors Office of Nuclear Reactor Regulation cc;

[L f4Hl~r\\ i!fistttighouis Eh:ctrk R. C. Ho:~1.ii!rd, %ijestiw1ghm.1se E1edric

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for 'tli"iin:smi.tters c.illd switdles that use capillary taal)es, perform a RTT aft(::r 'ini't'ia'l foshlh.tion and after any mafoten~nce or modification GJ,tthity that could danvage the capfl1ary tub.es.

(c) lf va'V'iao*h~ damphl9) is us.ed,. *Jmpleme.nt a method to assure Ui.at the potent ionmter is ~t the r@qu*ired set.ting and carmot be inadverterrtly d1,~u~ei!d @lf' perfort11: hy,driu*t k RH of the se.vu;or folh:11Prin9 e~cn ci1 ibr-at *hH1.

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P~rform pri~dlic drift mordto:rfog of all r:t(adi;l H5l, 1152, li153, ind 1154 R()i1J:1uiiom1t presslUlr~ a,nd dHf~lrent.ial pressmre triutsmitttn'*s, for

\\.'i!M ch ~TiT e 1 imi n.at imi -is pro1culsed, 'in accordanc~ with the gu idanc,e c@~tatned in (,.os.:emount T~thnkal BuHeti-il t~o. 4 and ccmt in.,tMJ to remain in full compliance with any prior commitmrilnts to Bulletin 90-01, SupplenM;i;ijt 1~

11loss of Fi11-..0il i*n Transmitters i-tanufactured by Rijs-emount. ii As an idternathe tc>> performing periodic. drift monitoring of Rosemotint transmitters., licensees may complete the foll owing actions:

{ l) ~m.s.t1ff*e th;at operators illlnd tectmidans are a1;1are of the Ro*semount transmitter loss of fiH-oH issue am:l make pr'ovisicms to ensure that techniciiins IMmitor for sensor response time degradation during the prfotrmaf!ce of caHbrl.llti*sns.ancl fonctiona1 tests of thes.e transmitters.

iflol (2) revie't'B 1~d ijAlf!\\dse-s,11rveiH.f!'J1ce. testing procedures, H necessaryt to enstH'lE! tlhillt cal icbr..:1tio11s ~re being perfonr1ed using equipment de.signed to provide a ste~ funtti(m or fost rsimp in the process varhbl e and that cal ibnit fons and fonctional tests are being performed in a manRer that a1lo1.,1s simultaneeus monitoring of both the input and l.'HJtput response of th~ trar1smitter l.11/'.lder test, thus allowing, v,ith teasonahle assurance, the recognition of s igfiifkant res.1r,onse time de.graidat iorL Sl1ould yrm have any questicms or wish further clarification, please ca11 me at (300 415-lOOt\\, m 4 John Garriere at (3.01) 415-2921.

S in-cere 1y, Bnace f\\. Boger. Director Division of Reactor Controls ar.d Human Factors Office of Nuclear Reactor Regulation Ern:losv.tre:

As stated c-c:

t1l i 11 et*\\ Wes. t inghouse Elect r k C. Hm1;rcL1 West h1ghouse t1 ect rk Siegel ( 0-14 H25) fl le (b) for tr~@si'@i'Uers aind $!P.litch~s that tise capillary tubes, perf~'.l*rm a rnr if.ttf' tn1th1 in~taH it hm ciind after amy msiirrtien,1J1ce ({)r r11odiflcat'ion

~ttivity thit coul-0',j clarruli~e th:e C$li}flhry tubes.

(c)

If ll'm.rrtabl~ daffl[Jil'lg is used? implem1.ent a method to i.sswre that the petenti~t~r is ~.t the reqMirierl settirtg aind cannot be hHad¥ertently.

it:&'tt~tlgtd t1W' t)t~*form hydn11u1 ic iUl of the s~nsor following eacli cilibrll'tlt i@n.

(d) ti'>~l"fotNa ~errk.dic dw*i ft ~A)o*l tm*fo9 t?.f i 11 f,jode l H51 r U 52, 1153, ~nd 1l5:4 R"@~:emotffwlt prijs1rnre and differe.ijti@l pressure transmitt~rs, for r.1hfch RTT eHmhui;t hm h-l!H"oposed~ in accord,Hncij with tne gijidanc~

coflnt~i~~©l irri Ros1m.om1t Technici1 8uHetfo ~~o. 4 a:fld contiilW? t4i remain fij fafn C1}mph~~ce with any prior colilri'itrfients to ~uHetfo 90-01 ~

Suppl~m~nt 1, (Gloss of fill-OH in Transmitters ~,~n.tafactured by Roserm.nmt."

!ts.an <1.Hernat hre to piarfo-rming periodic drift monitoring of Rosem~Mnt tr&nsriri tters $ 1 i censees miy complete the fo 11 owi 11g act ions~

O) e!ltSttff~ Uuat or,eratars and tecbnicfans. are at\\iare of the Rosemm:.mt tra:r1S!J1liittet loss of flrl-oil issut il!rl~ mark:e provisforis to e11nH.1re that technk*hHu iiu@mlitor for sensm* response time degradation ch.sring the perforw~nc @f ca!.Htwatimu and f1.mctfonal tests,of these trans111it.ters1 a~d (2) r~viti!it*~ ifbd irmdse surv~Hlance testing p-rocedures, if necessary, to em,l!re. tl'uat caiibrirtions are being performed using equipm~nt destgr.e.d to provide a step function or fist ratnr;i in the process variable ;;uid that caHbi,~ations aind ftmcthmal tests ~re being performed in a manner that aJloi.1s shmJltarteous monitoring of both the input and output response of the tra11smitter under test, thus a11owhig, with reasonable assurance,

  • the recognition of significant resp.onse time degradation.

Should you have ziny questions or IPJish forther clarific.ationg please c:.ill me at

{301) 415**HH'.i4g or Joh1rn G~niere at {301) 415-2921.

Brijce A. Bijger. Director Ohthicm of React.en'* Controls and !-h.1mi.u1 r actors Office of Nuclear R~actor Regulation

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