ML19326E021

Submits Listing of Two Groups of Items Yet to Be Resolved Based on Review of Class IE Electrical Equipment Qualification Using NUREG-0588 guidance.Marked-up R Tedesco 780228 Memo Re Facility Equipment Qualification Encl

ML19326E021
Person / Time
Site:	North Anna
Issue date:	07/24/1980
From:	Sylvia B VIRGINIA POWER (VIRGINIA ELECTRIC & POWER CO.)
To:	Harold Denton Office of Nuclear Reactor Regulation
References
RTR-NUREG-0588, RTR-NUREG-588 650, NUDOCS 8007250430
Download: ML19326E021 (13)

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N J.<cb MEND'jM CR:

D. '.'assallo, 's sis' ant Cire: tor fcr Light '.Jater

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R. ~edesco, As,istant Director for :" ant Systems, 055

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-m vs t, ;n.,x /<5 C L*.>-> rS On January 18,197E.

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.u cation pro;ra:n. A list of attendces is attacned.

,he discus sion resu,,'ad in ident. ying l } se. era,i a re a s recuiring,. artr.er s

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After revice of the c.ualificati:n d;cunentztion, the ap?licant was advise::

on the following:

1.

The ' - s '. w... '..:. '. i u-. >. - - -. r c ?

t. s' -

%.. o.. '. i 3 '. t '.. ;- e.'.

e... e u- '.. n '. v forral suhmittal, the concerns in this regard are resolved.. '. a r

2.

Confirmatory tests on the inst uments described a':ve should be coc.pleted.vithin three r.cnths.

The angljsis presErie' or the:e in-struments indi:3:es there is a hign likelihood tha: :.ese ins: :.ents w wid successfully ;. ass the tests.

The licensee ir. dica tec the it ou,nd re o

- v ecx r.3te.,y six cntn.

s tc. :omp. te '.hese tes's.

...i ni s ie v

r.3 t'ar is being svie,.ed within PS.

3.

k*e rec.uire ass.rance in the form of anal sis and doc; mentation. hat instrumentatica di ersity is provided for ECCS initiation and that f *,

is qualified. The l i can s e e i n di c a.te_ 5 tha t t h.i.s s h oul_d be re s ci.ed <_ v,.-c

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s ho r.t..]l.

b. / -

Contact:

Pb M di fA. Y C. F. Miller

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O. Vassallo

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The details of these three ite s, as discussed with the licensee, are included in the enclosed minutes of the e.eting.

O V QSh&YU Robert Tedesco, Assistant Ci ector for Pient Systems DSS Encicsures: Minutes of Meeting List of 't:er. dees cc:

R. Tedesco T. Ippolito A. Drsmerick

0. Parr D. That;her M. Srinivasan C. F. Miller 4

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ENCLOSUF.E C

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vanuary 13, 19,e o-

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N n,.,Rv. H e... u..

, 3 S,i:

tav

e..:i i u-QUALIFICATI0t, 4EETING MINUTES A reetin; wat held at the VEDCC offices in Eichnond, Virginia to discuss 3

and examine portions of the qualification test program performed te verify the adequacy cf Cisss 1E equipment. " embers of VEPCC and NRC that attended are identified in an attichr.ent to these minutes.

r The foli: wing subjects -ere discussed with the appi,icant and the findings are indicated.

1.

Roserount 1152 Differential Fressure and Pressure Trans.ritters a.

These transmitters are included in the desicn

• .0 detect Reactnr Coolant Pressure (h'ide Range); Stear sene Stcr Level, (Narrow

.ange); and,,.ain :,.eam riow.

r.

i b.

The environmental prograr., proced.res, and test results were audited and found to satisfy the design requirements and therefcre are at:eptable in this a ea.

2.

Barton 385/752 Differential Fressure Trarsmitter a.

This transmitter is included in the design to detect p essurizer level.

b.

The environmental test program, procedures, and test resuits i

from tests perferned on 11-20 and 25,1975, at the Forest Hills, PA test facility were audited. As certain transmitte'rs were irradiated and different transmitters sere expcsed to a s imul a t ed s t e a.m/.w. a.t e r./_c.h.e_mi. c.a i. a c. c i_ d_e n t_e. n v. i _r.o. nme n. t, c_c mpi e t e ascurance could not be established to assure that operability wcuid be maintained for all design requirccents. The licensee was informed

/

n/

/

that NRC requires confirmatory tests to be perfon5d within three nonths to provide complete essurance that the trans.T.itter is properly qualified. The li:e^see res;:nded that it would require arnroximately six r.or.ths.

3 c.

The

nts tested indicated large errors during the test, and inicrmation on the cuase nas stated as being that the tempera-ersation r.e:aork l ss h6t isiitJrateY T. hi;erlyT.. ~Th.i'a;;ii.~ ~ ~

~

ture cc:

o cant provided test results that indicated 15at the installed

.transritters temperature cor.rensaticn net crks 5 ave teen pro;erly e's actuall) caused by the calibrtt:. and that the large +rror:

tested instruments te ; erat; e com;entati;r. neteork.

There were

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.a electrical c;r.nects;n: were not adequately cuali#isd.

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cent that are not qualified to the ost severe servi-:e : nditions, will be rodified and replaced inside of their connection b xes with Rayche.:.~spiicing aterials and procedcres identi:a1 te those that have bc -n qualified to the nest scvere cervice conditions.

This method has been reviewed ind found acceptable by the Staff.

I This will be completed prior to plant criticality and will be so docum ted.

e.

The en '-enmental test inforn.ation to L exception to the r?q mi-= Tent for a,.cing that the instrwrent could function proparly undar all service ;:nditions and maintain true d'.ersity for initiating safety injection. The licensee was informed that this was unacceptable.

Th: 1:c, nsee is presently discussing this with the NSSS.

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Barter.. eport El-752-5 *'as audited to assure that the instrument rodel that was siesmically qualified aas identical to that pr -

vided in the Narth 'nr.a design and nc e'.ectrical nalfun:tions occurr?'

This substantiated the siesmi: re vi ew ccnpleted by 3

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' ' ~the NRC.

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m car, eon see i ressure *. ransm1.er 3.

a.

This transmitter is included. in the desicn to dete:t Reetttr Coc,i an: - ressure (nice ange).

s b.

The er.J.ronmental test pr;; ram procedures P EF-205-Rev 1, s

dated 5-17-75) and test results that were utilized during the tests performed or'. 12-15-76 at the Forest Hills,

• , test facility were audited. The test resi ts indicated that certain o

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...o v.c exposed to a simulated steir/-ater/ chemical at:ider-envircnment.

Complete assurance could not be established 10 assu e that operability -cuid be maintained fcr all des t;n equirements.

The appi:v at was informed that '3C requires a cor firnat:ry test to be pei formed aithin three manths to verify that the t-ansmitter is prope ly qualified.

The licangee responded that it acuid require appccr.fr.ately six months.

The a, plicant had identified that the Xese6:1F_inhal?[d];;rans -ij..af

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c.

ciac? 4 cal connections were not adequately qualified. Refer to Ed Bi,

3r the resolution of this deficiency.

d.

The rasuits of the test indicated that maximum error frca Irrag'ati;n ang. envircn enta,4,esting was significant.

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resulting frcm irradiation over a farty year life would be identified and calibrated out esery eighteen months during instru. ment calibra tion.

As this instrument is only in:luded in the design to provide RHP interlock function anc taking into account the periodic calibration being perferred, the evaluation by the staff detenained that the instrument would be capable of per-formina its desic.r. re,ui re ents __a n_d _i_s th.e re f_ ore a c; n. t a 55e.

s c.

Barton Report Ri-3SE-6 a'as audited to assure that the in',tr_ ment model that was siestically quali'f ed was identical to ;hai pr:'.ided in the North Anna design and no ele:trical mai~ unction occ.cred.

This substantiated the siesmi revisa cenpleted by c hers in N:,C.

4.

Rosemount 176 KF 1 K5 Resistance Te pe-atu e Cetectors

^

a.

These detectors are included in the design to d+tect React:r Cociant Temperature ('n'ide and

• ar-: Range).

b.

The envircnmental test program, ;rocedures (FE.' ^CE'-Rev 1, dated 5-17-76} and test results that aere utilized during the tests performed on 5-21-76 and 7-25-76 at the Fores: Hills, PA test facility were audited and found to satisfy the design rec.ui e-nents and are therefore acceptable in this area.

c.

The licensee has identified that the present installed detector electrical conne:ticn: were not adequatley qualified. Refer.to 2 d abcve for resolution of this deficiency.

d.

The environnental test information took exception to the require-cent of assuring that the instrument could function properly under all service condif.icns and maintain true diversity for initiating

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safety injection. The liters:e was inforced that this was '

unacceptable. The licensee is presently discussing this with the NSSS supplier.

e.

The irradiation ;ortion of the tests have demonstrated that the narrc, rance detec' ors eere qualified for a 40 year life and the wide range detectors for a 12 year life. The liceraee stated that calculaticns are presently in prc;ress tc establist the levels of int : rated radiation dese that these cetectors will be exposed to in their presen:iy installed pla~nt io:ations. 4s :nis analysis has not been co p'eted and an ac:eptable quali'ied life has alread.v teer, established b.v testsi the discussicr, on this subject was discontinued at this Teeting.

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n dated 2-14-75 for each'of the RTD's that aere tested.

Our Sadit of these docu ents detent.ined that identical detectors -Ere used in t h t*.

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Foxboio EliaM Fressure Transmitter a.

ini s transmi tter is in:S ucec in...ne,esign to,.etect,,ain

,re s s u r :.cer rressur;:er r essure.

S,veam cressure anm, c

b.

The error evidenced during the test froc the initiai pres s.-e rise was discussed.

The licensee de..or.strated and the staf' agreed that the error '*as in the safe direction and therefore no affe::

to safet.v is involved.

c.

The envircncental test pressure rise took 35 seconds.

The applicant pn2vided infornation on other transmitters uhich have identical bell housing and pressure seals that have been tested with ; essure s

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l d ses within 10 seconds.

The staf f agreed that edequati de cnst-ation in this area has t.een provided and therefore it is acceptable.

3 d.

As certain transmitters were irradicted and different t-ansmi ter.

t were exposed to a simulated te5m/a2ter/;hemical accider.t envir:- ent, i

complete assuran:e could not be establisFed t: assure that opera:ility se maintained,icr a,si

.h e...icensce was t

, c.es1 gr, requ, rements.

woul u, informed that NRC requires a test to be perftrmed aithin t? se ;r.:r.s t'o verify that the transmitter is preperly qualified.

The licer.;ee responded that it would require appr0ximat'ely six conths.

e.

The licensee provided the number of the ar.olifier rodel installed in the plant for the steam pressure transmitters which is N01'2X5. The licensee provided :sbor Radiation Test Report T2-iC75 date: 9-73 which de.cnstratec that an error of apprcximately li on "rplifier Type NO-i!3-XS v.Es indicated. The licensee stated and the stiff agreed that nc safety cor.cerr, exists.

u 6.

Foxboro

_.._y i :erertia,.rressure transmitter.

c i as. s This transmitter is included in the design to detect Feed a.

Vater Fl:w b.

Concern was expressed by the staff that the physical location of these trar.smitters should be such as a pipe break.uld not negate their safety function. The licensee statad that this was evaluated

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during the high enar;y line break analysis and that this physical location concern was included. As the staf f has ccmpieted the review and acceptance in this area, no further discussion was warranted.

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7.

Texboro Ell AH Pressure Transmitter a.

This transmitter is included in the design to detect Contair. ment

-rrassure.

b.

Action Laboratcry Esport Q-9-6030 was audited to assure that the s

instru ent model that was sies?.ically qualified was identical to that provided in the North Anna design and r.c electrical r.a; fun::icn Occurred.

'his substant-:Sted the siesmic review completed by others in the NRC.

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ATTACF.9 E*4T

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.V E. PC0-NRC A. Di s J. Davis C. F. Miller G. Pannell D. Thatcher W. Bennett (Fer: Time)

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UNITED 5T AT'ES E h,1. v. (T n NUCLEAR REGULATORY CO'.WISSION 6,55/o / / o E O f

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Virginia Electric and Power Co pany q i-F sb.

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Mr. W. L. Proffitt r..c >cc Senior Vice President Power cu-r-

• o.0. Box 25666 5*

R C.and, "ireinia 23261

Dear 'ir. Froffitt:

SU3 JECT:

Environ ental Qualification of Rosemount Transmitters

'; orth Anna Pov.er Station, Unit 2 In the Final Safety Analysis Eeport, you reference Roserount Repc-t 117'1E and additional tests conducted by you as the basis for the environnental cuali-fication of Rosemount transmitters for the t; orth Anna Fower Station, Unit 2.

We have re;iewed the inforation provided b;, you and our evaluation of ycur qualificaticn orogram for ths Rcsecount transmitters is surarized in Enclosu es I a-d 2.

It is our conclusion that while these tests demonstrate that these tr.:esnitters Save a high degree of tolerance to harsh environments,

.suo_?_ierencal tests should _be conducted to confinn the assaa?tions used in tnis progra.T._..._-____DL._______r re:.;ra +ms Tor resoiution or these concerns f or t.ne i; orth are presented in Enclosure 1.

Anna 00.<er Station, Un:0 :

Pleese

..in, us af ter meipt of this letter of your schedule for oroviding tbc >". Tor ation in Enclosu-e i and your intent with regard te our requirements

s stated in Enclosure 1.

Sincerely, O

b GianI rar. f ~ f r, Cnie Light Water Reactors flo. 3 Division of Project Mar.ager.ent 2" closures:

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4 February 25, 1980 Mr. Harold P. Centon, Director Scrial t.o. 055/0110f.4 Office of, sclear Feattcr rcgulation P5EAC/J.0:c6:mc At tr.:

F.r. G. D. F 6 rr, Cr.ief Ligr ; k.ct(r f.eactors Crarch 'io. 3 Nciet Nc. 50-339 Civisic,n c5 Project IMr.agea.ent U. S. T.uclear egul n orf Comission

'n'a s ni ng ton, D. C.

2L553 0-:ar Mr. Der, ton:

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s kle have revi:. 9c your letter of January 10, Dr an t'.=

n:leseres concscning the reqast for azitice.al testinc cf ow oant tr&rsnitters.

The foll;.,in; respor.ses correspsod tc your cos.ents in your Enclosure 1:

1.

Any progra caelo;.ed to ir vestigate souip 9.t materials subject : inosn significant agir.; effects.,ill include the ;ose.: cunt trans.mi tters.

HLever,

',,e na e previously agreed to re.alace thi seal

'o' rings with ren cr.es any time the seal is disturbed.

Thus the electrorif t nausing 'o' rings woulo be replaced at least cach refueling cu+ to calibr3 tion re r;u i r y..e n ts.

The 'c' rings cor.tain v.e only -sterial pre-sently kn

,,n,vhic.h ray be subject te sncan significant aging effects.

2.

The test instrcant :rror dass rct eacced the +cceptance criteric usec ir, the dsting".ouse sup;lemental qualification prograr.

it.e Ic..+ errar requirenents are only curing tr.e first 5-1C uinste3 auring whicn grot:ctive acticn nt occur, and then the allcnwle error becomes +2R for tFe long tern post acci-dent ronitoring.

The transt.Ttter test results irdicate that tr.2y vill res;.ord within the acc9pt3nce limits.

3.

The 11520P (Differcntial Precsure) test transmitter is represen-tativa of toe ':P (riigh ?'recsure), AP ( Absciute Trcssure), and GP (G3r Pre;;ure) transmitters in mecr.ar.ical enc electrical featurecMecediif.arahJm arau.dmns. dNckn..ss) fw d i s jeo ra[p..,7. pen.

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