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5."RevisionutolPECo Evaluation for Automatic | 5."RevisionutolPECo Evaluation for Automatic | ||
- ; Valve:CorporationiPilot Solenoid Valves". | - ; Valve:CorporationiPilot Solenoid Valves". | ||
-Page 24 of Attachment 2 of the February 21, 1984, letter presented :a Technical Discussion of the Reliance ECCS cooler fan motors which included the: testing, lubricating and reconditioning schedule of:theLarea coolers. The' Technical Discussion stated- | -Page 24 of Attachment 2 of the {{letter dated|date=February 21, 1984|text=February 21, 1984, letter}} presented :a Technical Discussion of the Reliance ECCS cooler fan motors which included the: testing, lubricating and reconditioning schedule of:theLarea coolers. The' Technical Discussion stated- | ||
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Revision as of 21:09, 23 September 2022
| ML20102A516 | |
| Person / Time | |
|---|---|
| Site: | Peach Bottom  |
| Issue date: | 02/05/1985 |
| From: | Kemper J PECO ENERGY CO., (FORMERLY PHILADELPHIA ELECTRIC |
| To: | Thompson H Office of Nuclear Reactor Regulation |
| References | |
| GL-84-24, IEB-79-01B, IEB-79-1B, IEB-82-04, IEB-82-4, NUDOCS 8502080427 | |
| Download: ML20102A516 (32) | |
Text
e PHILADELPHIA ELECTRIC COMPANY 2301 MARKET STREET P.O. BOX 8699 PHILADELPHIA. PA.19101 (215)841-4502
< .. 7.57ff70.L,.c. February 5, 1985 Docket Nos. 50-277 50-278 Mr. Hugh L. Thompson Jr., Director Division of' Licensing U.S.~ Nuclear Regulatory Commission Washington, D.C. 20555
SUBJECT:
Generic Letter 84-24, " Certification of Compliance to 10 CFR 50.49, Environmental Qualification of Electric Equipment Important to Safety for. Nuclear Power Plants" y ,.
REFERENCE:
Letter, S. L. Daltroff, PECo, to J. F. Stolz, NRC, dated January 9, 1985 (Request-for an Exemption to the 10 CFR 50.49 Schedule Regarding Environmental Qualification of Electric Equipment Important to Safety for Nuclear Power Plants - Peach Bottom Atomic Power Station) i
Dear'Mr. Thompson:
The subject Gener'ic Letter, dated December 27, 1984, requested. Philadelphia Electric Company to provide under oath
~information relating to compliance with 10 CFR 50.49,
" Environmental Qualification (EQ) of Electric Equipment Important to Safety", at_our Peach _ Bottom Atomic Power Station (PBAPS). A belated' submittal of our response was discussed with your Project Manager for Peach l Bottom Atomic Power Station and found acceptable because Philadelphia Electric Company did not receive your letter until January 11,.1985.
This letter and its attachments provide the requested
~information. A restatement ~of'the Commission's request, together with our responses relative to Peach Bottom Units 2 and*
-3, follows.
8502080427 850205 5 PDR ADOCK 050002774 m M
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J K' Mr. Hugh L. Thompson, Jr. .
February 5, 1985 Page 2 3 Request-A iThitiPhiladelphia Electric Company,has in-place and is implementing an Environmental' Qualification Program that will l satisfy:the requirements of 10 CFR-Section 50.49 within the
' currently' approved schedule for the plant without further Lextension.
LResponse A
' Philadelphia Electric ~ Company has an Environmental
, Qualification: Program in placc for Peach Bottom Units 2 and 3 that1 satisfies the-requirements of.10 CFR Section 50.49 within the currentlyLapproved schedule for Peach Bottom Units 2?and43,'exceptifor the exemptions requested in the Reference lettercof January 9, 1985 and identified below.
-SinceDthe' submission of'the January 19, 1985 exemption
-request',; Philadelphia Electric Company has determined that delays in completion'of' major piping modification work will
~
delayithe Unit 2 outage beyond. March 31, 1985. As a result,
'preoperationalitesting of three EQ modifications:
- 1. . Installation of two new reactor pressure indication loops-emergency procedure instrumentation; 12h Installation of acoustic monitor'for SRV-position
- indication; and
~
~ 3 ~.1 Installation of two suppression pool water.
. temperature indicators-emergency procedure instrumentation;L M .wil10 notibeiperformed until the end of.the currentcrefueling
't
-outage.s ~ALrestatement ofqthe Peach Bottom' Unit 2 portion of
- the exemption-r6 quest submitted--January 9,'1985,Jtogether
. y- swith,the; additional.EQ-. modifications described above,Lis
~ enclosed!as: Attachment 1,1" Request for/an: Exemption-to.the 10
'CFR 50.49 Schedule Regarding Environmental; Qualification of
~ ~ Electric Equipment ~Important . to ' Safety ;for Peach Bottom
> Atomic: Power' Station4 Unit.2."
$l . - . . .. . . .
2
- Philadelphia; Electric 1has also determined that the Unit 3-Tmodification, the -installation Lof- two' newMreactor pressure indication ^1 oops-emergency procedure instrumentation, which
, fwelidentified:as a " Regulatory Guide l.97? modification"~in Attachmentfl~-of our January 9, 1985. exemption-request, is Jalsofconsidered an EQ Lmodification. _Since this modification fisioutage. related and :the : Unit /3. refueling outage is not, 1scheduledito startountil after, March 31; 1985, . Philadelphia LElectric~CompanyTrcquests an exemption until November 30,
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v iMr.-HughLL. Thompson,fJr. February 5, 1985 Page 3
- 1985.forJthis modification. A restatement of the Peach Bottom' Unit 3 portion of our exemption request submitted
'. -January ~9', 1985, together with the EQ modification described
'above, is;; enclosed as Attachment 2, " Request for an Exemption to_the 10 CFR 50.49 Schedule Regarding Environmental
-Qualification of Electric Equipment Important to Safety for Peach? Bottom Atomic Power Station Unit 3."
Request B.
- That'the plant'nas at least one. path to safe shutdown using fully
- ; qualified equipment, or has submitted a justification for
- continued; safe operation -(JCO) pending full qualification of any
- equipment notLfully qualified.
fResponse B-
. Oneipath to safe'shuidown post DBA exists-through the ioperation of. the: Automatic -Depressurization System (ADS) and
'the Residual Heat Removal System (RHR). The necessary ADS
.and RHR system electrical equipment is qualified; therefore, one path to. safe shutdown using qualified equipment' exists ~at~
.PBAPS Units:2 and 3.
w:
RequestLC1 (Thatiall other equipment within the scope of 50.49 is either-fully qualified orfacJCO has been submitted pending full jgualification.
.r-
. Response C-LWith' 'the : exception . of the. PBAPS Unit 2 modification - to
~
tinstall acousticJmonitors to~ monitor ^SRV-position indication, l Attachment-3,'" Justification lfor1 Continued Operation
- LPertainingeto Environmental-Qualification of Equipment-nImportant-to Safety",-contains all JCO's for equipment listed.
}y' -
? 'withinJAttachments-1 Land 2 to this letter. All other .
~
Lequipment within the scope.of 50.49'has been-qualified.
, ~Nkuest 1The 'certifi' cations de' scribed in. Requests A, B and C should-specifically addressLall NRC IE Bulletins and-Information Notices
'thatfidentify:EQ problems, relevant.to Peach Bottom Atomic Power p . Station,f, Units-2.and 3. The NRC considers:the following IE M -Bulletin and-IE Information-Notices to be applicable for
~
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, hMr.}Hugh skThompson, Jr. February 5, 1985
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consideration; IE Bulletin 82-04, IE Information Notices 82-11,
<:82-;52,< 83- 45, ~ 83-72f 84-23, 84-44,784-47, 84-57, 84-68 and 84-78.
4 S: _
M - LResponse' Specifically Addressing NRC- IE Bulletins and
- , J~ .-Information -Notices :
~
, Philadelphia Electric! Company has examined as part.of its.EQ
_ ,-Program effort, NRC-IE Bulletin 82-04 and NRC IE Information Notices 82-ll,182-52, ' 83-4 5, 83-72, 84-23, 84-44, 84-47; 84-
- $57,K84-68Eand-84-78. Attachment 4, " Responses to NRC IE
. m. S .
BulletinsiandgInformation? Notices That Identify Environmental
- };3 .
QualificationiProblems Relevant to Peach Bottom--Atomic Power
< , 2 Station," specifically.:a'ddresses.the actions taken by Philadelphia': Electric Company..
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'I ' (Weiare'takingithis opportunity.of.providing-
'clarific'ation of'certain: statements that were included within
'4 kpreviou's? Philadelphia Electric Company _submittals regarding f -Environmental Qualification'of Electric Equipment Important-to 1 Safety as;follows: ,
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~
, ; By letterc dated: October _18',1984, TJ;: F. :Stolz ---(NRC) :to
. 1 JE./G.?Bauer ,JJr. :(PECo) ,"the Commission transmitted itsi" Safety 7 % LEvaluationiReport?for'Environmentali Qualification'of Electric
, - G VEquipment:iImportantito1 Safety _ ifor~ Pe.ach2 Bottom ' Units 1: 2 and.'3".-
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Included-within both Safety; Evaluation Reportsiwas a'--
$- jrestatement1ofResponse Al of Attachme'nt-11ofDPhiladelphia f _
- Electr.ic' Company 's!l letter Jr_esponse' ' dated .; June 113, 1984 _ (S .
- L. .
"Daltroff,;PECok to:JE F.'Stolz,INRC)Lto the Co'mmission's May'114, 9 1 9 8'4 , l e t t e r ,:: J . ? F . J S t o l z . t'o ) E . ' G . ! B a u e r , 1 J r . ,'. " E q u i p m e n t'-
! Qualification of Equipment (;Important'to' Safety-Re_ quest;forc fAdditional /Information." _ This ;particular : response regarde'd Tour.
- imethodologylusedsto(identify equ'ipment (asi de fined Lin:c paragraph '
- ' ;(b) (1)fof 110JCFRi 50.;49) :requiredf toDremain functional"during- or _- -
f Qfollowingidesign-basis 'Lossiof". Coolant Accide.nt (LOCA)1;orp High? .
Y l - dEnergy6 Lines BreakE(HELB) ' Accident. ' As stated t in ?ResponseLAl;of ?
~
^
m .~fthe? June 413,J.1984? letter,iPhiladelphia Electric. Company-y5 ;determinedithe: role'.oflindividual electrica17 components in .
9["' , EsupportingDthe.operationiof-systessiidentifiedLin?the FSAR;by iconcurrentlytreviewing._ thel'Q'-list,iElectrical'Schematici
% g -iiDrawings,? Emergency OperatingTProceduresiand:Pipingland:
M HInstrumentf Diagrams. JThe. response 1 further statedE(and:was P . Arepeatediinl;the-Commission's Safety Evaluation Reportffor?
% IEnvironmenta1JQualificationDfor7 Peach ~ Bottom Units'2:and'3) .that' F W s"AlthoughfaJreview 3of(theLTechnic'al Specifications was not:
(conducted,ithe?Q' -listicontains all the. equipment thati appearsi Sin the: Technical. Specifications;7and therefore, the equipment-g:n <;; , .
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K Mr. HughDL.fThompson, Jr. February 5, 1985 k- : Page 5 1
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' ~
within the-Technical Specifications has been implicitly lincludsd." -This statement is inaccurate. The Peach Bottom Atomic Power Station 'O'-list does not contain all the equipment
~
identified in the Technical Specifications. The statement that Eshould have been made in response.to Item Al is:
0 Although a review of the Technical Specifications was not conducted, the scope of equipment reviewed, based on the documents identified above (the 'O'-
list, Electrical Schematic Drawings, Emergency o' _
Operating Procedures and Piping and Instrument
. Diagrams), encompasses the scope of equipment required to mitigate a LOCA or HELB accident.
It should be noted that this revised response in no way
~
' changes the adequacy and completeness of the list of environmentallyLgualified equipment at Peach Bottom Atomic Power
' Station.
-Philadelphia Electric Company also wishes to clarify two portions of our' submission'of-February 21, 1984, S. L. Daltroff
~
-to J. F. .Stolz ~ (Peach Bottom' Units 2 and .3 Resolution of Safety
.EvaluationiReports~ Relating to IE Bulletin 79-OlB, " Environmental Qualification of Class ,lE l Equipment"..)'.'- ' Attachment 2 of the February 21, 1984,: letter _ included a. summary of the resolution of all theJelectrical' equipment. environmental. qualification
'deficienciestidentified'by Franklin Research Center in their nAugust~3,-1982,, Safety. Evaluation Report _ transmitted to
[ Philadelphia Electric Company by letter, J. F.LStolz.to E. G.
'Bauer,;Jr'., December 20, 1982.-
Pagerll of Attachment 2 of the February 21, 1984,. letter
_ presented _our Evaluation of the AutomaticLvalve. corporation's
-(AVC): Pilot Solenoid valves for: steam relief: valves and-MSIVs.
1The. Evaluation.statedLthat the steam. relief valves _are
~
1 reconditioned.every refueling-outage. This statement-is
' incorrect. -The Steam Relief Valves are. reconditioned every Lsecond refueling _ outage, but the pilot: solenoid valves-are not'
~
- included ~in.the reconditioning. -The AVC-pilot solenoid valves b are.ina: preventive' maintenance program for replacement overy
- ~
fthird refuelingLoutage.. .The1 specific revision to the section
" Evaluation",is; identified by a vertical bar in the margin of the enclosed:
Attachment:
5."RevisionutolPECo Evaluation for Automatic
- ; Valve:CorporationiPilot Solenoid Valves".
-Page 24 of Attachment 2 of the February 21, 1984, letter presented :a Technical Discussion of the Reliance ECCS cooler fan motors which included the: testing, lubricating and reconditioning schedule of:theLarea coolers. The' Technical Discussion stated-
~
F
'that the; original motor. bearings were_ replaced with sealed
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1 LMr. Hu'hiL. g Thompson, Jr.
_ February 5, 1985 Page 6 ap (bear'ings.cLThis statement is incorrect. The Reliance ECCS cooler 7
fan original motor bearings l'n the RHR, Core Spray and HPCI are not replaced.sith sealed bearings, but are instead reconditioned on _ a--five-year s cycle. . This reconditioning consists of
-installation of-;new bearings, dipping the winding (when necessary),fcleaning, balancing,. lubricating and "hi-pot"
-testing. ,The specific' revision to-the se~ction " Evaluation" is
, -identified byfa' vertical bar in the margin of the enclosed U.-- tAttachment'6, " Revision.to Technical ~ Discussion of Reliance ECCS
~
!CooleriFanfMotors"~ .
. . Should you have'any. questions'or require additional
~
Jinformation,-pleaseldo notLhesitate to contact us.
- v.
Very truly yours, SWf 2
' + : Attachments cc: J. F.'Stolz,; Chief,' Division'of Licensing, USNRC
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- ;-. COMMONWEALTH OF PENNSYLVANIA
'n : ss.
COUNTY OF -PHILADELPIIIA :
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.Ji.S.-Kemper, being first duly sworn, deposes and says:
J'
' That he is Vice President of Philadelphia Electric Company;.:that he has read the; foregoing partial response to
? Generic 7-Ldtter'84-24 and knows the contents thereof; and that the
'.statementsVand matite'rs set forth therein are true and correct to 1
.thezbest=offhis.~ knowledge,/information and belief.
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'. ' Subs. %cribediand '. sworn to:
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Notary Public,-
g JUDf7H Y. PRANNUN Notary Public, Phila., Phile.~Co. I -
' My Commission Expires July 28,.1987.. '
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ATTACHMENT 1
[' .., TO
~ PIIILADELPIIIA ELECTRIC CO!!PANY'S-
-- , RESPONSE TO GENERIC LETTER 84-24 PERTAINING TO y -
W PEACII BOTTOM ATOMIC POWER STATION a
' UNITS 2 AND 3 3
> ; , g. DOCKET NOS.1-50-277.AND.50-278
,3.m
_ REQUEST FOR AN ' EXEMPTION TO - TIIE
~
., 10 CFR 450.49' SCIIEDULE REdARDING ENVIRONMENTAL'-QUALIFICATION OFI ELECTRIC
~ ;U '
- EQUIPMENTE IMPORTANT-TO SAFETY FOR-PEACII - BOTTOM- ATOMIC - POWER -STATION - UNIT -' 2 2 ; ,
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. PHILADELPHIA ELECTRIC COMPANY PEACH BOTTOM-ATOMIC POWER STATION UNITS 2 & 3 DOCKET NOS. 50-277 & 50-278 ATTACHMENT 1
. EXEMPTION REQUEST - PEACH BOTTOM UNIT _2 Although most1offthe. Peach Bottom Unit 2 Environmental Qualification modifications are expected to be completed in accordance:with the , schedule provisions of Section 50.49(g),
Lequipment delivery,may_ adversely impact the completion of certain
' Environmental Qualification modifications to the extent that the
~
1 Unit 2. modifications will not be completed before March 31, 1985.
'In addition, modifications currently being performed to Unit 2 may not.be preoperationally tested before the end of Unit 2 refueling outage, which.may extend beyond March 31, 1985.
Therefore, Philadelphia Electric Company requests, pursuant to uthelexemptioniprovisions _ of 10 CFR 50.49 (g) , an exemption until
. November 30, 1985, to the implementation schedule of.10 CFR
- 50. 49 (g) for;the following Peach Bottom Unit 2 Environmental
-Qualification' modifications:
- 1. Modification: ' Replacement of valve actuators on two
-HPCI valves. These actuators are being replaced in
. order-to eliminate the need for actuator motor brakes.
Reason - for -- Delay: Delivery of the valve actuators, ordered June 1984, is not expected until March 1985.
Any delay in delivery woul'd result in-installation after .
sMarch'31, 1985..
>2. Modification: Replacement of ECCS pump room unit cooler
. selector switch-cams.with stainless. steel" cams.
LReason: for' Delay: Philadelphia Electric Company had
-difficulty in obtaining a vendor to provide-this
- component. As a result, stainless steel cams are being fabricated by a vendor who does not have an environmental qualification testing program..'The need
-for= Philadelphia Electric Company to perform its own qualification ~ testing for.this component has delayed
' installation. .The' material was receivedJthe week of
. January 128, 1985, and the' modification.will be. completed
- at the end of the Unit 2 refueling outage. -The refueling outage willnbe delayed beyond March 31, 1985.
L3.. LModification:.. Replacement of' safety-related differential pressure' switches used-to start the backup
. fan tin the ; Emergency . Ventilating System - (EVS) for the-
, .ECCS pump. rooms.
- ReasonJfor Delay: . Delivery of equipment, which was 1
, ordered--May, 1984,' is now expected by March 31, 1985.
g
' :a . - - ,
y ATTACHMENT 1 Page 2 of 2
- 4. Modification: Replacement of suppression pool level switches that are part.of.the High Pressure Coolant Injection 1(HPCI) System used to switch HPCI pump suction t
from the condensate storage tank to the suppression pool
'upon.high' suppression-pool water level.
Reason.for. Delay: Preoperational testing for these switches will occur at the end of the Unit 2 refueling
~
- outage.- The refueling outage will be delayed beyond March 31, 1985.
- '5..- Modification: Replacement of motor brakes which do not
-have adequate qualification documentation on selected
'O'-listed Limitorque valve actuator motors.
8 Reason 1for' Delay: Modification to two of the motor brakestwill be delayed because a new motor for each of
'the two valves will have t'o be purchased to accommodate the new' brakes. . Delivery of the new motor is not expected prior to June 1985.
- 6. 1 Modification: Installation of two (2) new reactor
. pressure indication loops-emergency procedure instrumentation.
Reason /for Delay:' Preoperational testing for these pressure; transmitters will occur at.the end of the Unit
,2 refueling ~ outage. The. refueling outage will be delayedjbeyond March-- 31,.1985.
6 7 .- - JM odification: 'I'nstallation of Acoustic Monitor ~for SRV-position' indication (TMI-Modification).
1 Reason.forLDelay: Preoperational testing for.the Acoustic-Monitors will occur at the end of the Unit 2-g . refueling' outage. The refueling outage will be delayed
'beyond Marche 31,~1985.
- 8. . ' Modification
- Installation of two-suppression pool water temperature indicators-emergency procedure instrumentation.
p '
Reason for. Delay:l Preoperational Testing for'the temperature' elements will occur at the end of the Unit 2 refueling outage. The refueling outage will be delayed
.beyond March 31, 1985.
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- ATTACIIMENT 2
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TO
- PIIILADELPHIA ELECTRIC COMPANY'S
^ , .- -
_ ^ RESPONSE TO GENERIC LETTER 84-24 w - - ,
~
s PERTAINING TO-I, ! PEICll' BOTTOM ATOMIC POWER STATION
?
. IUNITS 2'AND 3
._ o -
DOCKETLNOS. 50-277 AND 50-278 m
, _ REQUEST-FOR AN EXEMPTION TO TIIE 10 CFR
- 9
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- 50.49 SCIIEDULE' REGARDING ENVIRONMENTAL
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. QUALIFICATION-OF-ELECTRIC EQUIPMENT
- D IMPORTANT : TO SAFETY - FOR PEACII ~ BOTTOM s . . , . .
- - 4 ATOMIC POWER STATION - UNIT 3 ..
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2 - ;PHILADELHIA ELECTRIC COMPANY
/ PEACH BOTTOM ATOMIC POWER STATION y7 +
UNITS 2'AND 3
,? .,. , DOCKET NOS. 50-277 AND 50-278 W s ATTACHMENT 2
, a ;, -
.~ EXEMPTION' REQUEST - PEACH BOTTOM UNIT 3 e ,
+
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- - ~;Although:most of?the: Peach Bottom Unit 3 Environmental SQualification" modifications.were expected to be completed in "Laccordancelwith :the schedule provisions of Section .50.49 (g) , a
~
s, - delay inttherstartlof the' Unit 3 refueling outage now precludes
+
- i. implementation prior-to March 31, 1985. - This delay resulted from .
Ma;1owerjthan.~ expected capacity factor experienced during the
. - currentJUnit'?3: operating. cycle. -Although our previous schedules
-ihad' anticipated'the: refueling outage to be completed prior to i fMarcht31,51985,:it nowfappears that the refueling outage will not LbeginLbefore1 March ~31, 1985,- thereby impacting the scheduled
< outage: modification; work to.certain equipment. Therefore, g ,7 g Philadelphia Electric' Company requests,' pursuant to the exemption
^
- provisions Eofi10 CFR;50.49 (g) , . an , exemption until November 30, M~ : 1985,5tof thel;1mplementation schedule of 10 CFR 50.49.(g) for the followingEPeach Bottom-Unit.3 Environmental-Qualification R aodifications.>
L o.~ i l '. . #
Modification: . Replacement of valve-actuators on two
'* o' ~
'?HPCILyalves. . These actuators-are being replaced in order toDeliminate the-need for actuator: motor brakes.
we +
'Rea' son Jfor[ Delay s n Delivery .off tihe valve factuators
,% / 4 7 -; ordered June,1984, Lis not) expected until March 1985. .
Jl~ VLAnyTdelayLin delivery wouldl result-in Installation-after
" ' ~
(March,31,-1985.v In addition ~, the: valves'will not.become' -
/ s av'allable forcthisiwork until Unit'3"is shut'down'for ~
, : refueling.V .
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- ,
- 2.c JModification:4 Replacementfof ECCS pump,roomLunit cooler ~
.y selector.switchicams:with stainless steel cams.
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. lReasonifor[ Delays"fPhiladelphia ElectrictCompany ha'd:
cr jk , "difficultylinl obtaining'afve'ndor toLprovide.;this-
~Okcomponent.1AsLa' result,-stainless.steelcams'are'being. ,
~
m
, Hfabricated.byLaivendor"who'does notlhave'an.
, environmentaliqualific'ation testing program..'The'need:
,D A s ~, . for: Philadelphia Electric Company:to'performiits own
/ qualification ltestingLfor!thisIcomponet~has' delayed.
3..
- installation. .The material"was received >the week.of-
~
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' LJanuary .28,11985. DThe modification will,be completed by.
(m '* " jthetend of the next' refueling _. outage.whichzis not g .
4
, . scheduled-to start until'after: March .31, 1985.
M
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tr~ s,. ATTACIIMEMT 2 p ,. Page 2 of 2 3.- Modification: Replacement of safety-related T- . differential pressure switches used to start the backup
. fan in'the Emergency Ventilating System (EVS) for the
.ECCS pump rooms.
Reason.for' Delay: Work is outage related and the next refuel outage will not start until after March 31, 1985. (Delivery of equipment, ordered May 1984, is now expected
-by. March 31, 1985.
- 4. . Modi t'ication : Replacement of motor brakes which do not have' adequate qualification documentation on selected
'Q'-listed Limitorque valve actuator motors.
' Reason for-Delay: This. modification is outage related and the refueling outage is not scheduled to start until after March 31, 1985.
5 5'. Modification: Installation of two (2) new reactor pressure indication-loops-emergency procedure
> instrumentation.
. Reason.for. Delay: ' This modification is outage related and the refueling outage ~is not. scheduled to start until
~after March ^31, 1985.
3
. ).
h s 4 r e b', s e 4 k 5 x
'6
'h. s !
#'~
Q ,
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~
q N 4 ATTAC!DiENT 3 TO , s C PIIILADELPIIIA ELECTRIC COMPANY'S RESPONSE TO GENERIC LETTER 84-24
^
~
PERTAINING TO e.
. PEACII DOTTOM ATOMIC . POWER STATION
' UNITS 2,AND 3
' DOCKET NOS. 50-277 AND 50-278
,JUSTIFICATIONiFOR CONTINUED OPERATION PERTAINING TO ENVIRONMENTAL QUALIFICATION OF, EQUIP!!ENT IMPORTANT TO SAFETY s
FEBRUARY 1985 ~
*tr..
^
.[
44 I
) A , y 5:; , - C 4 ,-:- -'i;.
a4 'u .
y
'~
- PIIILADELPII A ; ELECTRIC 1 COMPANY
-PEACII BOTTOM ATOMIC POWER STATION
, . UNITS 2 & 3,
, . DOCKETS 50-277 & 50-278 ATTACIIMENT 3 a .- Justification for Continued Operation
! Equipment. '
MO-10-13A,D,C,D) 10-154A,B) Group 1 14-llA,B) 23-20 MO-10-34A,D ) Group 2 14-26A,B ) 1 MO-10-25A,B ) M 10-31A,D ) 14-12A,B ) Group 3 23-19
!S5fdty Function:
~
Group 1 - passive essential Group 2 - normally closed and passive
.escential unless a surveil-
- lance test.is in-progress coincident:with a LOCA.
Group 3 - essential active IQudlification-Deficiency , "' - Lack.ofLmaterial. traceability for' drive.- motor brakes only. (Deficiency 2 E' valuation: ALreview of operability. requirements-
. Jfor the J Group 1 and;2 valves reveals =
UP M,' sthat L they are7normally in~their frequiredyposition~for-safety system functionDand would nottbe. required 4 43 to change l position'for response to a y safety system; initiation' signal. The Group'3 valves'Lare 'normally
.. & ' closed and)would be required : to .open -
* -post 1LOCA;Lhowever,1they are. located
'outside primary containment, Hand
~
based on a'3-hour time 11agLbetween-
~
~
4 ~ inside cand outsi'de' cont'a'inment, they rwo'uld 'experienceEno adverse-
'^
temperature or humidity:during:the fpe r iod hin ..which stheir; oper a t ion
.mighta be r roquired . :
un
~, O The?l0-25A,B. valves would,be
. required to i open L post-IIELB; 0 however ,
both' valves'would not be1 subjected'
' W_ ) ; ,
~
itosthe-immediate effects of the.same
.w .
~" , ~ lIELD and.thereforefthelpotential for
~
common' mode failure of these valves-j) ^. pRhp n a. m- -
- - - -- .~ -~ ,oe m m co.z-n,; + , ^ ~ .p
~
Y* r f;
" ~
?
QQ** y f s s ~.m .m -w . f ' p< & . ATTACIIMENT 3
' ' ' 'r '
i ;w , q Page 2 of 6 y ,, .o - W' , .. iM ' 1 W. does not exist. Furthermore, discussions with the manufacturer vi ' a indicate that typical actuator drive
; y 4~ -
j . motor stall torque is approximately .
, L." -
, 4 times greater than the static my ~"
Tbrake torque-capability; therefore, - -
- 'it-can be concluded and demonstrated
- g' r by field experience that the motit?
V' W ~ can-position the. actuator regardless .
-t e? ~ ,~ '
~
of brake failure. i I, _4
=
.,,6 3t s W Equipment: <V
'+ .LS 91A,B JRMii__m .
jS^.foty[ Function:~ H,- Automatically transfers. IIPCI suction 0 - 4 .
, - from CST-to torus on.high torus d- ,a, x~y , .. ,
water level. kQubifi$aElon1Ddficiency:1 RadiationLqualification test. ' d
,.t- -.yu : " . 2 - ,
(Defi;ciencyjEvaluation: . ~ .The radiation dosage level is below
;, gy - 30 the threshold value for most' ^
- i - '
# materials; the probability of a d , AE - - - " ' " *
- failure! caused'by. radiation is e
b C? w: . 11nsignificant. .- 9 o '
- u n_ #r 1 N 3692,N 3693,N3772,N 3773 ;N 3783,N 3784,-
QEqui pment: ' ' d ~ l' /m, ,
'N3884,N3885,N3994,N3995 (GE-CR-2940 2 E /
- 9:: _. .
Position 1 Select'or.- Control Switch)-
.y 1? .
,~.,c <r
, v. ,
2bSOfotyJFunction:}
~
- ; Maintain:areatcoolers control gn '
fcircuit? ' continuity posttaccident - p'
^
g4 ,W,y y , y. timeirequ.iredfis:consistentiwith . gm fassociated ECCS systemLperformancen ,_
- ( a cq .
- frequirements. . e
.,n:
y - , ddddificationiDeficiency:[_ ~ (Testfdocumentation radiationi level ' $WH-M +
. , 4 s - , toolloW.'
^ lC. Jnj -l %
.. l. ~ .l .t . - .. .
. :- y TAl temporary modification has' been
~
TDeficiency Evaluati.on:: g,my ,~ - f.completedftoiensure that theicontrol - e , ' *. - ::stationstwill:notEfailtin ?such a7way; g , @jA Mm C,-~ ~ 19 m -A ias to? disable the areaGeoolers. oThe ;M . ,
. 'j f *
< ,Econtactsarequired for"oparation;of' gt ; _- '4 y' s ^ the ? switchl unders posth LCCdh .
M4 y _,' - c, ' q i cond i t ionsi.w i ll^ no tit ep5(tyt he a r e a r
%A -i -
,V '
_tcoolerssinoperable'.. Also,Jthe- . > -
' ' ~
9%h, 87s :contactsiwhich: are iused :to manually-; . p M,y; ggg - l l- P ^ ?initiateh ope nioniof /the?IIPCI, ' RCIC 'h w 1 M' u 4"s ' cand3 Core .t n . area coolers for5 survei1 %: ( esting?during normal. y& ,"g[, 7' *., 4 '
*.f 1 '
Y plant y.;C .n have been eremoved:to-t , 45 J$.g , '
;1, .' , tavoidDtae pv eibilityfo'f the '
ing, . W 4 3, - y ?, . operation?of'all coolers /in/the. jdM M W~+ . .* -DN : event)of"alswitch'failhe'. m ~ w p ,, g , 7
,n _ JQ R i gM$ ' \d.Ff h ' " 5 w vsg s y g' q. my
$q j*hM%p'e'l]. ., ]' Y Pdi # -k -6S , ' ,9 , ; ,_
',.'. " i,
,f, n '
; g% ,
,'Q, d, NMessW % - "..r3 ' {;6 4i ,Z '"
,lt ,
~ ~ - --~ ~ ~ ' - -
gqw W+ ~~L MTr~
- a. ; "c f , GV':
n y ~ 9;m9 ?NW:. , ,G F '.
$fh!W .
nf w, 'p;: j g '
' ATTACHMENT 3
- t. Q Af. , ~ Page 3 of 6 mm , - . s f .- , p mN i
l- '; NM , ,; ' lLe
^
.J' r Operation of all area coolers cannot if ' ' ' ' '
be supported by the ESW System. y:n s - ,- This temporary rewire guarantees f *Wb "g , .: :;N' ' that the area coolers will operate g; y ~' as required post LOCA. x+
.n, w, w . - .
ikEquipmentt)' DPS-20400-03,04,05,06,07,08,09,10
- 11 ~,12 ,13 ,14 ,15 ,16 ,17 ,18 ,19 , 20 .
cO M , ' g %y ( ,3 . (O Snfsty?Functionti- .M. ' Maintain electrical': continuity for
.p 9 W
^ *
- area cooler: control circuit post ,
gg, ,c ,
. _ accident, passive essential.
mn . M \ f- ~( .- M ' . . [ S [.. . , _ No7 qualification documentation for y .. , QQualificationiDeficiency:
%J 7; j ~ - tthis? equipment has been located.
' ~
,: % ;y PL Dwyer Differential Pressure Switches
~
QfDef iciencyJEvaluation:f i (DPS's) have been environmentally,
~
Z1 sM# a Lt ested by Franklin Research Center
$CF yOld T ,
for-PECo.' TheDawitches functioned' M-' p#( ~
$%%gdE T ,
.successfully through baseline 4
a 9j 'y
;MMM ' ' , $W functionalitesting, thermal aging,.
radiation aging, seismic: testing and fori4.5~ days into the DBA simulation
~
w . .f! w Wp59] ' j ~
- 2*t:)+ *F; ; .which represents a postulated post
~
p DBA"perlo_diofj13.5-days;- The testh g ypPpAg/g, 7 4Ag%u-y w ..^Y,
.switches;were thermally aged for Periods off20Dyears-'andu40 years 63 My M" ? '
.before;DBAltestingowhichJadds to the-' S A We -
sgM4
- Mdm% % % i ^ . +
1 -margineof theiDPS's" installed:ati , _$ MhN Ap - hs)#[; -
,4 W 4PBAPSLwhichiare onlyE10iyears old. ]
Jgqv%gmwr . "g1,
~
- ThelDPSCfailure;was such thatlthe
/;1- o* 3 upre ssure.n actuated '.diaphragmz became' J^
idi j M;7
.increasingry?stif f L dur ing.~ the? test; N
~ ~
+'
.Jin Land'eventuallyfwould not+ move when . ,
d W M." 4 f , pressurized to opensthe micro switch i 1 ' bc b;w. qc
- within?theLDPS. No-electricalM-.
w.w c
- a. ~
.$insulati, eon 1 failure:or;;structurait ,'
gg JO n;au,fM- &3
%f~ x. '
- W ifailure; occurred;which~wouldsaffact gpM }g& g$$(Y ' /V Z ,
, W W ;the(operation"offsafety-related eguipmentiforgthetentireg31"daysJoff y; % .
,m _j'4 .
~
~ ?th~e DBAfsimulation. TheEDPSis ar'e Oy dlA M=i
,h@ "M i ggs3. ,, ' W C 69ci ,
Lusedtto controlithe' operation of? ~ . . . - . g.
+
9,M _
-area:coolersTin;.ECCStrooms.-;The- #hw&y1:~.y mE ,1o9 s9 > '< , ,
O failureLof the?DPS=such1that it Will? ,
~
$NM g w M.?a w -..
not changeistate$does'notiaffectEthe? @ E' m a m ~ ,
; operation /offthe runn,ingearea-J g
$R,%p y a'g(y*16 Q"De y:/-J -
~~ - -
- cooler.;,These switchesfare'
> m.
f MENpM, d f +A _ m finstalledsinAthe' discharge)sideTof7
^
m f
. O thefarea ncoolerifans1which woulds, 1
- y$Ca " Gd qwgj, e ' " 4, , ,
M reducefthe'ir; operating? emperature? t .u u AM
~
jbyJ10Ldegrees.Fiand infaddition,/ai g%q ,
,a g - t10idegree1F marginLwas-addedito the- ~
*4 1, h;i h ,MM #D ' % 1 y.;dd6~ _ igeneral3aiea;postulatedEDBA -
=
e www . ,h4 s s , _ j.
~
eh h 3 e .
-U .
( O gru 4 ,> M , m . 3
, y-
?A % [ , . .
m
- g. 7-
^f- '9w-.
~ ~
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"p'
> ATTACHMENT 3 Page 4 of 6
;jk - -
3 temperature resulting in a DBA test
- temperature margin of +20 degrees F.
Failure 1of the DPS could affect the
'2 capability of the backup area cooler le from automatically initiating on the k,~ '
loss of the running cooler. . wv
,wf - The RHR system (LPCI Model) has four
-pump / motors located in four w
different rooms with two' area U - g~ . coolers /RHR room. The failure mode
, ~c
- . .of the DPS-is.such that it will not
' s# ~ . change state after 13.5 days post DBA and initiate operation ofsthe J3- < . backup area cooler for the RHR
,1 , u - pump / motor. Tho' existence of.the backup area coolers isynot required. to.meetmsystem requirements or the
.singleEfailure" criteria; as
- ~
. redundant RHR equipment can meet the E
gg
. cooling requirements resulting from
< ~
~
za DBA. " Dased on the results ofuthe FRC
~ '
test, the RHR area coolers will
.. y.,
? start atithe onset of an accident'
~and c'ycle between the lead fan and-backup; fan (if required ldue to > loss a OE S - o'f lead ' f an) for 13.~ 5 ' days. Ten
"'. ; minutes 1after-the~ start of the DBA,
;4- only twoLRHR pumps are required to effect ?an' emergency shutdown, (re f.-
%. Table -. 8. 5.2a PBAPS - FSAR)'.. - If . the:
- 9' =DPS?cifailedil3.5fdays after the' ..
.n -0? beginning of a LOCA;and the. backup .
~
s .arealcoolertdidenot~ start, tan-4iC '6 -increase?incroom' temperature would.
-beLindicated-in the control-room and-
_+10 j 14 - 'the operator would!take appropriate
~4
~-
caction~torstart'the: redundant-E,m - Mequipmenteinfoneiof the other?3-RHR-
, -4 -
rooms. LOperation?o!! the%RUR L y TV 6 - ,
, : pump / motor 5 initiates operationi of ]& >
the: area 1 coolers.with the DPS'in-the -1 closed ' pos.ition . EThe1DPS is? normallyfin the closed po'sition 1' ] ' during system: shutdown:and doesanot. g, have-:to changeistateEto initiate operation ofLthe-area' coolers;1 i , 45 on , y there fore , it'will porform~1ts--
~
, . f , + s
'%>:n u :sa fe ty - func. tion..
i , -
, - ' ,A ,Basedron-theLfailure mode of-the 04 "* '
' re '
~
'DPS,.the fact thatithe DPS does not ,
t5 o a
?' f Maa --5,,,,
~
{ a,
~
=
[E Q. 3 . ATTACHMENT 3 y Page 5 of 6 "A E > / . have to change state to initiate operation of.the area coolers and l' -the RIIR pump / motors are redundant, PECo concludes that PBAPS can continue to operate without undue
~
- risk to. public health and safety.
[ Equipment: , PT-6-105
- SSfdtyLFunction: . "
Provide reactor-pressure indication for operator information.
- LQualification Deficiency: Post-accident operability time of g
101~ days as opposed to existing qualified post-accident operability n time of 7 hours.
. Pressure Transmitter PT-6-105 is
~
'f De ficiencyh Eval'uation : -
' located in room 403 andiproviden reactor pressure indication for operator.information. PT-2 f- 55A,B,C,D are also located in' room e
403,' provide indication for operator
- a< information, and are environmentally 3 qualified. In addition to PT-6-105, p
a new transmitter will be. installed
, ~
7 ,
.to,' enhance the present leve1~of-qualification. _The new pressure 9 transmitters will'. have a post-f- ,
accident operability, time of one Z- year as opposed to a 7-hour post-accident' operability time for the.
^
redundant instrumentsLPT-2 l 55A,B ,C,D. - Pressure. Transmitters
' .PT-2-3-55A,B,C,D are qualified'to r temperature, pressure andiradiation'
~
? '
levelsiin'excessJof-the postulated DBA. conditions. ? Based on the foregoing, it can'bc concluded that jc 3 , information will-be available forL
" C ?" the operator to take the proper- ..
- , , actioneasjrequired by1the : emergency procedures.- '
}. , DEquipment:- - :TE-24 4 2A ,B TE-3442A,D:
* ;i Sf fetyg' 7' 'unction':* Provide l suppression pool water
_ temperature indication for-operator information.- l f :. - ' fQualification:: Deficiency: s lNo1EQ documentation-available. (Defih[encyLEval'ation: u Temperature Elements TE-2442A,B and
'TE-3442A,B.aro11ocated in-the torus 4
- 1, k
- 1 J t e-
_. . - - - . 7,
( P;g ~ ATTA01D1ENT 3 Page 6 of 6 c ~ p, - and provide suppression pool water temperature indication for operator information. The only non-metallic
~
c materials in the temperature elements, as' documented by a
- telephone conversation with Decher
' ' Instrument Company, are the neoprenc
/_ - connection head-cover gasket and the
- ceramic < terminal block.in-the connection head. Based on a review U- of these materials-as listed in m.
EPRI-NP-2129 Report and Standard IIandbook for Electrical Engineers, it is concluded that neoprene and 1 - ceramics can withstand radiation levels in excess of 1 11R and are not
- adversely affected by.the postulated , 1 high temperature operation. Based on:the foregoing, it can.be
( concluded that information will be e t
- available for'the operator to take p
- proper. action as required by the f(
s - emergency. procedures. p--= 3 l %- # 5 a ? e '" ' . r er
-Y ,
'd(l .*
.: 3_
.fix ,.,j -
p.7 1 i ,
'4V ..
, ,. / : 7
' '# ~
Fii % f , ( , V4 '
/4 -
4., .',..-. c
- u ;
m S n . l :l, !9- ! '
~
- ti ,
i Q._ _{. x !_ L , r_--
vy -,=--
-s,, tn - ,
FM . , . m ..
, _c <
..t :;. 2 a b , . _ . , e E'
d 'p 4 y - 2,,
.w ..
- s-
~
e ' - E s u : ' m
%I 3
.i, (
M%i
~
- ATTACHMENT 4 s-4' 0
~,<-,._ ,
TO t.' ' m 1 PHILADELPHIA ELECTRIC COMPANY'S!
-1~
~ RESPONSE!TO GENERIC LETTER 84-24'..
~
.?~' --: .
+
. es w w m _ y - . , ,; ,
.- PERTAINING TO p . . -
. ^R ... . . ,
.; PEACH BOTTOM 1 ATOMIC POWER STATION
- UNITS 2.E 3 m + ~
.m
^- -DOCKET NOS.J50-277.-AND'50-278
%v - -
n, n p' - . o, w'
- RESPONSES-TO-NRC'IE BULLETINSi
~
i
% s *a,
_ w-- = . . _Y 4 . , , q g' k cAND INFORMATION' NOTICES.
- . :, p .
~
e L 4 . 3 1, yot g y q~ ,
~
~
.THAT IDENTIFY ENVIRONMENTAL ~. ..m
- e. .
+
. . ~
. [,
=-QUALIFICATION: PROBLEMS RELEVANT'
~ ,
s
' lf - _..
X, ;TO PEACH: BOTTOM ATOMIC POWER STATION k '
VV + g q j;y-: - ' ,
--s x N
cp 3. 48 : FEBRUARY.1985
)
1 1/ .I . s
.- t y' x , ,,
, lr '; * > s.~ c I i {. . .4 (A~ '
'fh'I' 4 1
. yg *
- a r
~
' ' f:
w , .
;fh 3-- y ,,( , *
,a . f.:;- . .f q l
.c , ',
^
~'g" 4- $-
}
- ,g .,;-y-} f ~ 1 <
- , ' s3 .
1 4 h5 i,g{.' , q>..'f f=; I + P. A 1
'7 e .
~
- s
, / _
.w- * ,
~.y .
j' ,1 -Q:: , , w : , #
,,.-c b
. 1' e-" ' _ _
> x . ,
+
.p , t
.o-- t -
Y 4
-3
,7; : +
J d $*> - PIIILADELPIIIA ELECTRIC COMPANY iPEACH< BOTTOM ATOMIC POWER STATION
. . UNITS 2 & 3
-DOCKET NOS. 50-277 & 278
~
i 9; ii ATTACIIMENT 4 -
^
- RESPONSES =TO NRC IE BULLETINS AND
- INFORMATION NOTICES
~ ' '
EIE Bulletin 82-04
~
~
^'
Defi biencie's-in Bunker Ramo. Primary Containment Electrical Penetration
;:< ; Assemblies:'-
c .
~
~
I5unkerfRamo Primary Containment-Electrical Penetration
* ' Assemblies:are not'used at'PBAPS; therefore, IE-Bulletin 82-
-'0411s:not applicable. .1 HIE-IN 821 11~ --< -
y iPo'tential InaccuraciesE:in: Wide lRangeEPressure Instruments used in-J]~p\WestinghouseiesignediPlants. D y?t ,
. +
W' lResponseito-IE-INJ82-11 iPBAPS Unitsi 2 andt3:are not Westinghouse designed plants; M < therefore,-IN!82-11 is notiapplicable. 5 -~IE- IN 8 2-52e
^
+
~ _( _ _ _
-G. ; : Equipment [EdvinonmentaliQualificat' ion Testing Experience--JUpdating .of.- ~ g j: Test-l Summarie's)Previously J Published in :IE-IN : 81-29; Equipment'-
+
Environmental { Qualification: Notices : (EEQN ili thru . ll) : Response to IE-IN1825 52 EEQN-l:{ Limitorque^ Valve Operators:- 6. 3 ' Limit'drque Qua'lif'icStibn$Reportsion-file-at PECo satisfylthe-e - s
- Specifie_d.EnvironmentalJQualification' Parameters forLPBAPS Units 2-W
- liand '; 3.1 -
s; .,. t + W u y 2
.g,.:
h:h.E- - + w .
m %37 q g m . id ~<# ^ p, j4 o #;: . . 3
. . ' -,@T , en w- ATTACHMENT 4 u .
P 1'e J' m Page 2 of 7 l g .
- s. -- %
m . [ w f(( Response to IE-IN-82-52 EEQN ITT Barton Transmitters: *
~
^
-M',' 2Bart'on transmitters-installed in Class lE applications at PBAPS Iareblocated in-~ secondary containment and are qualified by Barton l
;reportSR3-7_64-9.c:Barton Transmitters identified in EEQN-2.were ;
O 7' > t ~ " testeditollevels<which~ exceed PBAPS Environmental conditions for
- bothiPrimaryl Containment and Secondary-Containment.
x . : LResponse to'IE-IN'82-52 EEQN D. G. O'Brien Electrical
, [
c e,
. _ E Penetrations: - '
y - .. 7 p ag g,foeBrien Electrical Penetrations are.-not installed at PBAPS ~ y _ .m , . LUnits?2 and : 3;; therefore, EEQN-3 -is not applicable.
, , 9, ;._ % ,' [ t' p..
LResponse to~IE-IN 82-52 EEQN-4, 5, & 6 - Dresser: Safety Valves:
~~ h/!DresserLSafety Valves areinot :i'nstalled_ at PBAPS Units 2 and 3;
] qy ~' ! therefore ! EEQN--4, 5 ~ and 6L are 'not applicable.
.- x : ;
~hy _ > [ Response?toLIE-IN:82-52:EEQN 7 - Target-Rock (PORV '.s ) Model.80X-17 :006-13:,
7 o s . ~ 4 ITarget? Rock ! Pow'er f0perated Relief Valves (PORV)<Model; 80X-006-1 ~ A I_ larecnotinstalled;atLPBpPS'UnitsJ2 - Land 3;therefore,EEQN-7;isnot - E , ; z7
~
iapplicable.7 ud + , so '
.r, q'; > . . . - -
* ; Responses to IE-IN'82-52 EEQN-8 *l Control-Component' Incorporated
>Lt ' ' ~ '
M
. ; f(PORV) : ,
%:2 i l. !..
an.' Control ~: Component'. Incorporated Power 50perated% Relief. Valves p,- ,, :(PORV's) Vare 'notlinstalled datH PBAPS / Units ' 2-'andf 3;: therefore ~, EEQN. yg ,, ' ,_ ;m8bi, sL not applicable t <
, m _
n; . ._ e . - c , . N Crosby Safety'LValve73K6::
~
- Response?to 'IE-IN /82-52 EEQN-91 w
n- _ . , ,
-. _ ~ ag ,
_ . , ._ ,. .. " i , gC .. W.SkCrosbyfSafety; Valves 3K6:are; not3installedMat 'PBAPS: Units 2 and)3;1 ' >< P itherefore: EEQNJ9'isj.not(applicable.: 1, - - 4 3 ,
. _ A,dv[
'ri Rhsponse t'oiIE-I'N 82-52 EEQN'-10J-'ASCO SV's:NP-1. Series:
r .
- i s
m'
.y , ; y ',_ . , f~ a ' n '~
$ b r .. ,
y
', g
' q
'jPBAPSIUnits'2fandE3-[ASCO SV's.are'NP-8300 series, which.are not1
; the3 subject ofjIE-IN . 82 EEQN-10;f therefore , :EEQN-10"is : not L 3
33 h n. applicable. , 4,- ; s+ "
~
y b ,
', r 2 ,
'1 , , ,
k Y ; m
, , .._t, . s L _.- - ___.______,_:,. ___________,,_______.__l_,,,__
- bn g .a . s
_ s, - .
<.9 ?
*' .M '
~
ATTACIIMENT 4 3 c
- 6 '
, 4 ,
Page 3 of 7 k ' ~
, u II .
s 3%/ ' ' J iResponseito'-IE-IN 82 EEQN-ll - Environmental Tests of Xi '_; l .<;,- ' 1 ;ElectricalxTerminal Blocks, IE-IN 82-03:
'b', ^
s
'*%,,.7@, 3See; Response.uto.1IE-IN 84-47 and'IE-IN 84-78.
mi
~i 'Respon etto IE-IN1 82-52':EEQN-ll - Potential Inaccuracios in Wide-
^
; range 1PressurecInstruments in. Westinghouse-Designed Plants IE-IN .
y t82-ll:) a- '.H*. l
,(PBAPS Units'2 and 3'are not.Wostinghouse designed plants;
+ 4 1 7 therefore,'EEQN-llois not applicable'.
.- it
s5 y jIEE IN!83-45" 4 w #. y: ' _;h_ ' 9Environmentdl Qualification' Testing of GE-CR-2940-Position Selector fcontrolDSeitch:- . 1- ,
~
iResponse'to'IE-IN 83-45
~
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PECo ?isireplacing the failed 'componeta(Delrin Cam) with: a
- +
stainless. steel cam.. ' t 7y. - .~ - ,~ 5~ .- TheLJCOiforfthistcontrol?sta. tion'is included on page 2 of' - < - ~ TAttachmentz3. <
+
y . -- IIE-INc83 172-EEQN-12 thrui24 4 .
'i.
,- ?Environmentall:QualificationTTestiExperience, EEQN.12?thru.24sc w, - c_
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~
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^} ! Response tos IE-IN 83-72'EEQN Environmental > Qualification ~'of-JEpoxy Grouts _-.and. Sealers,.IE-IN 83-40:- -
[' 7
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-Epoxy-Groutsfare~~not:usedlat-PDAPS for anchors 7or seals;'thereforen
~
K$ * (EEQN-12 7.ist not :applicab1'e'. -
+
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.ItesponseU to IE-IN 83272 EEQN Environmental Qualification g(.* l Testing.of,GE-CR-29.40,DPosition/ Selector Contr'ollSwitch) IE-IN'83--
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,, . , 4ResponseCto*IE-IN 83-72-EEQN Anaconda Flexible Conduit:
- . +
N ,' - KAnacond'ajflexible conduit is installed in primary coatainment at a j' ^ iPBAPS?UnitsL2fand..'3-on Class lE Motor Operated Valves (MOV), Air ~' "
'[ Operated1 Valves?(AOV), and: Safety Relief Valves (SRV). .
This
@ iequipment?isielectrically connected by an Anaconda flexible 4: %, ]conduitLt,otarjunction box"with drain holes to avoid water .
g' raccumulationb'The junction box,1which'is not a sealed device,
'38
~
icontainaia terminal. block that has been environmentally qualified. m .. .. .
.- "' f ~ (The' MOV.'sc and; the, solenoid valves on the AOV's and. SRV's have been
, s successfully!LOCA. tested to_ envelope PBAPS postulated accident -
'T,- Mconditionst "The environmental conditions referenced in EEQN-13 excee'dithe: postulated accident conditions for primary containment W _* L atiPBAPS Units :.21and ^.3.
p , he ) (Re'sponse ?toEIE-IN'83-72 EEQN.14,15,16,17',18 &-19-- Rockwell POST--
~
l3 :LOCA Hydrogen-Recombiners:-
.~
y ,s . < ,4. , , 7 5 '[. i o 1RockwelleInternational? POST-LOCA Hydrogen,Recombiners are not-
- installedTatiPBAPS' Units:2fand 3;ttherefore,,EEQN-14,15,16,17)1876 s ;;E --
' f ' - ?l9lare notfapplicable.:
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~
T~] ! Response't'o IE-I'Ni83-72 EEQN-20 -'Barton Electronic, Transmitters:-- 9 .. % y , , I W, D ' 0BartonLElec'troniciTransmitters Model 763 are not l'n stalled at1 ' g "PBAPSLUnitst2?andE3);therefore, EEQN-20 is.not applicable. . y, a , a > m' ' 3 Response!to":IE-IN 83-72'EEQN Barksdale Pressure Switches-D2T: and-D2H - ' - 2 3p .
;p m
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~
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- JBarksdaleepressur'eiswitchesimodelsEB2Tland.D2H'areLnotJinstalled~
. J ati PBAPS : Units f 2? and J 3; l there fore , L EEQN-2111s-' not; applicable L ,
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' Static-O-Ring' Pressure' Switches'SN and + '
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-JResponse'to"IE-!N#83-72.
- ol2N Series::
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'/ de , 14Model*5NNStatic-O-Ring; Pressure Switches:areiinstalledoat:PBAPS,;
fi' .
?were7 tested by? Franklin!Research Centerifct-PEco:and:successfully:
Laeetnalloa_cceptance? criteria.. Modeltl2NLStatic-O-Ring PressureL , I *- i p,_ fg : Switches [arecnotjused.finfClass;lE: applications?at;PBAPS" Units"2:, v.
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24 M:s , "?ResponseStioiIE-IN'83-72 EEQN Barton Transmitters: ' k; f _ m , ;,l h - iThe;failureimode reported in EEQN-23 occurred at 320 degrees (7. " - i ; Fahrenheit.;,The maximum4 temperature the Barton Transmitter-will 2, 7 - ?bejexposed?to at:PBAPS. Units.2 and 3 is 128 degrees Fahrenheit; [,~ <
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_J y"I - -:therefore,1EEQN-23fis not. applicable. i
,,$'- b y!;. ~
', W Response"to IE-INU83-72~EEQN-24 Limitorque Valve Operators:
,, c L^N 6 ;Limitorq6e4 Val' vet 0perators have been inspected at PBAPS Units 2
~;; jand 30for;: properly-qualifled components and are inspected during w ~ each3 refueling 2o'utage'. ' Terminal-: Blocks are not used in the -
- Limitorque " operatorsat-PBAPS.
,_ / *
, LIE-IN#84-23' -
1 4 $ Y d ::Re'sult's:ofithM N'RCl Sponsored Qualification Methodology Research Test ~ { y on3ASCO'~ Solenoid 1Valvess;
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- 4. f: . - ' ; , . .
- ,'?ResponseL tolIE-IN 84-23 ;
[
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C N 1The?SV?siat PBAPS!are rebuilt on-a. routine. Environmental-
~
i iQualificAtionJmaintenance schedule. ~Alsoi ASCO SVfs install'ed in: [7 , " -
'; primary 7 containment 1areUpilot solenoidston AOV'siwhich operate .
Ei '~
, withinc5jseconds" post DBA'and'wouldLnot beLexposed'to(the' extreme 4 environmentalEconditionsDas~reportediin theJFranklinLRessarch
-' ' Center::.EnvironmentalfQualification ' test.
v , y sic 'LIN-IE84M4 , e JD't-
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s lEnvironnestalpQualification.LTesting'ofJRockbestosTCables
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iResponse:toiIE-INi84-44
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JPEcof:hasitwo~ representativesJon the; industry advisory' committee! to G , , fassistbinithe?RockbestosTsupplemental2 qualification (testLprogram M .. k ofor(ClassflE: electrical cable'.E;2Also., Dechtel Corporation:has3 < ff , : ^ ;preparedda' generic; test;reportton Rockbestos' cable whichFaddresses - the'- NRCifindings . :
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E r % + ^ ATTACHMENT 4 Page 6 of 7
- IE-INI84-47 I , ' Environmental Qualification Tests of. Electrical Terminal Blocks:
- ResponseIto IE LIN 84-47 Terminal 4 Blocks are not used'in instrument circuits in' primary cont'ainment. Terminal-blocks used-in secondary containment which are associated with instrumentation-will not be exposed to the extreme. harsh environmental. conditions'as described in IE-IN 84-
,;4 7.
i
'IE-IN - 8 4-57/
L Operating Experience Relatedsto Moisture 1 Intrusion in Safety-Related Electrical Equipmentiat Commercial Power Plants: e
#Nesponse to IE-IN 84-57
~
w- f Equipment' installed at PBAPS has1 moisture seals installed if.the~ 34 . qualification test r'equires that1 seals be installed. Maintenance
. requirements demand'that equipmentigaskets befreplaced~with new
- gaskets whenever disturbed-and~ gasket 7 replacement intervals-Edefined . for . Class lE equipment surveillance and- maintenance .
., . . activities assurefthat; equipment 11sLin proper operating condition.-
IE-IN i 84-68
- Potential': Deficiency l in Improperly Rated : Field - Rate'd Wiring to o
Solenoid Valves: ; Respon' s e :to IE-INI 84--68 ' A . lPBAPS-has recently installed Valcor SV's with 200 degrees Celsius 9 field-run wire which-exceeds-the possible maximum temperature
.inside 'the ' valve body L(138 degrees Celsius) by 62. degrees Celsius.
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1 ' '. ATTACIIMENT 4 Page 7 of 7 o IE-IN 8 4 -78 :-
~
Underrated Terminal.Blocits.That May Adversely Affect Operation of Essential. Electrical Equipment: o
- Response ' to IE -IN 84-78 :
Beau' Pro' ducts'76000' series. Term'inal Blocks are not installed in
-;Limitorquel Valve' Operators at PBAPS... Electrical Connections in
. Limitorque. Valve Operators-are made directly to the torque switch
'and -limit : switch: and: the : motor ~ leads are spliced directly to the
< source leads;-;thereforei'IE-IN'84-78 is not applicable.~
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1 a Y ATTACIIMENT' 5
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~ PIIILADELPIIIA ELECTRIC COMPANY'S .
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,. RESPONSE TO' GENERIC LETTER 84-24 m
tw PERTAINING TO:
- PEACl!-BOTTOM ATOMIC POWER STATION.
UNITS 2fAND 3-
,,
- DOCKET'NOS. 50-277'AND 50-278
, ,- REVISION TO PECO EVALUATION 'FOR 4 : AUTOMATIC-VALVE' CORPORATION-.
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-l PILOT' SOLENOID' VALVES 4
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' FEBRUARY 1985
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[ >; ,, 2 PECo-Evaluation
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w , J:-FRC VItem" Number :~43,3 44, ~ 4 5" ~ Unit 2 L 1i w l43, 44,345 Unit 3
~.
L~ ' . Y:: , !!? rDescriptioniofi' Item:~Pilotcsblenoid valves for steam rel ef 7g g !r ' ;~ ' valves and'MSIV's 7
< .. - Automatic Valve Corporation (AVCO)
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- ' ' Summary of TER
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! Unit' Deficiencies ,
.$ <43- L 2 & _3 1
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7 : Documented'evidencenof qualification inadequate. '
!.^ l Evaluation: j GE ' Le tter . G-IIE-8-198[ transmitted Environmental *' ..
' Qualification Test Results and! Procedures'for Automatic Valve!
! Corporation;SV's-mode 1Enumbers C-5450, and~4988-33-and 34. A-(Technical' Evaluation Report on PBAPS Unit'2' dated ll/80'conductediby 4
M % ",fA.,E.:Finkel<oflthe-lNRC indicates'that-the only.deficle'ncytis aging. J'- 1Th'e: Steam' Relief Valveh are' reconditioned every second refueling .
;;,1 1 ; outage.dand{theJPilot: Solenoid Valvesat Peach Bottom are replaced.
~
; s:;every third-refueling outage. 'The=MSIV.'s-at Peach Bottom are -
W reconditio'nedLeveryirefueling' outage., ' g , x (5[ t , _ . . , ., "_ i J Conclusion s Based ion '.:the 'above ~.information',- it'is concluded that' the 9AVC SV' star'e:; environmentally (qualified forJthe postulated' accident iconditions?at-PBAFS.- m - Y - j E
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Rev. 1 2/85 V' ,~ 4 4 , f u 9,,
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- ATTACIIMENT 6 p-( ,- _
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'PIIILADELP11IA ELECTRIC COMPANY'S
- 47 - s
[ RESPONSE TO-GENERIC LETTER 84-24
~
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_ PERTAINING TO
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PEACl! B'OTTOM ATOMIC POWER STATION n , E , UNITS 2'AND 3 e.
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.: DOCKET NOS. 50- 277 AND 50-278
-P . .
- REVISION TO TECIINICAL' DISCUSSIONS.
~
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.0F RELIANCE ECCS' COOLER FAN MOTORS
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% ' FEBRUARY-1985:
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', TECHNICAL DISCUSSION M, 3 -MU' < 1 4;.
4 " % ,[ j - 4M- FRCk Item No'.:j86, 90 LUnit 2 86,590'- Unit 3 . j; .. . < .. 4
.: m
; iDescrihtion'offIt'em Reliance ECCS cooler fan motors.
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, . Summary of TER
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Unit- LDeficiencies
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' .90 ~ n21 s 13' .4,~5 :10 1 #
# ' $Aisupplemental report to NUC-9 is appended by letter from Reliance
? JElectric. ;This.tletter restricts the. applicability of the supplemental The PECo analysis (Re f. 112) 4-< A.freport;to:Lthe;
~
correlatesithe1 motor, insulation? insulation' system system. organic materials list to radiation
. , W /damagetthr'esholds. ~ Additional evidence of qualification should be l";j M5 lprovided;for:theEmotor lead ~ splice and bearing lubricant and should
? Laddressithe;thermaliaging.and radiation exposure of the motor as a fq- :whole.<-
JEvaluAtions-TAsinoted in:the TER, PEco reference 112 is a radiation 4 N yanalysisifor the." organic materials.which comprise the. motors'
~
felectricalGinsulation system. =The radiation: analysis o.f the motor is; e
~
licompletelinsthatiallithe organic materials?within-the motorJare ~
- Jaddressed.xlThe, motor.fsplice? insulation qualification is covered:by-
,2 rSyst'em1 Component 9 Evaluation Worksheets which are located'in the
~
J.f JElectrical1 Power:SystemEpart of~the database. iThe : extension of : this: J7 S anal'ysisjistnot!necessaryisince'the=remainingLmaterials are metallic. LThelRHR, Core} Spray"and HPCItarealcooler motors are reconditioned
< %~ feverya fiveM(5) ? years:'which: consists of. Ins.talling :new bearings, . .. .
' ~
\ ; dipping - the winding i:(when 'necessary) , cleaning,'. balancing,ilubricating~
Jandfhi-pot { testing.i1In! addition,jthe-RHR,:CorelSpray,;andlHPCI~ area-4: icoolers are3 tested.monthlysinVaccordance NithLPDAPS technical' '
- u. i %, specifications and' lubricated every three ' (3)L months. .
=
n. E 'fConclusion's'LBasedton the~abovetinformation',-itJ:isJconclu'ded that the' i 4 e yReliance; fan motorsiar'e-environmental 1yfqualified for the postulated o^ 7 accident!; conditions atiPBAPS. -
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