ML20102A516

Responds to Generic Ltr 84-24 Re Certification of Compliance w/10CFR50.49 & Forwards Restatement of 850109 Request for Exemption from 10CFR50.49 Schedule Re Environ Qualification of Electric Equipment Important to Safety

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

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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.

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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.

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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

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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

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~ 3 ~.1 Installation of two suppression pool water.

. temperature indicators-emergency procedure instrumentation;L M

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.wil1 notibeiperformed until the end of.the currentcrefueling

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-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 4

Atomic: Power' Station Unit.2."

$l.

Philadelphia; Electric 1has also determined that the Unit 3-2 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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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.

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RequestLC1 (Thatiall other equipment within the scope of 50.49 is either-fully qualified orfacJCO has been submitted pending full jgualification.

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. Response C-LWith' 'the : exception. of the. PBAPS Unit 2 modification - to

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tinstall acousticJmonitors to~ monitor ^SRV-position indication, l Attachment-3,'" Justification lfor1 Continued Operation LPertainingeto Environmental-Qualification of Equipment-

}y' nImportant-to Safety",-contains all JCO's for equipment listed.

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'withinJAttachments-1 Land 2 to this letter.

All other.

Lequipment within the scope.of 50.49'has been-qualified.

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~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

. Station,f, Units-2.and 3.

The NRC considers:the following IE p

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-Bulletin and-IE Information-Notices to be applicable for

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February 5, 1985 g;g

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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.

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- LResponse' Specifically Addressing NRC-IE Bulletins and J~

.-Information -Notices :

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, 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., " Responses to NRC IE

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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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(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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1, 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.

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"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.

1. 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 ?

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.~fthe? June 413,J.1984? letter,iPhiladelphia Electric. Company-

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determinedithe

role'.oflindividual electrica17 components in.

y5 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 of(theLTechnic'al Specifications was not:

3 (conducted,ithe?Q' -listicontains all the. equipment thati appearsi Sin the: Technical. Specifications;7and therefore, the equipment-g:n

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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

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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

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' 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

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-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 reconditioned.every refueling-outage.

This statement-is

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' incorrect.

-The Steam Relief Valves are. reconditioned every Lsecond refueling _ outage, but the pilot: solenoid valves-are not'

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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

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" 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 F

schedule of:theLarea coolers.

The' Technical Discussion stated-

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'that the; original motor. bearings were_ replaced with sealed

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February 5, 1985 1

g Page 6 ap (bear'ings.cLThis statement is incorrect.

The Reliance ECCS cooler fan original motor bearings l'n the RHR, Core Spray and HPCI are 7

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

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!CooleriFanfMotors"~.

. Should you have'any. questions'or require additional Jinformation,-pleaseldo notLhesitate to contact us.

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Very truly yours, SWf 2

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Attachments cc:

J. F.'Stolz,; Chief,' Division'of Licensing, USNRC

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COMMONWEALTH OF PENNSYLVANIA :

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COUNTY OF -PHILADELPIIIA

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.Ji.S.-Kemper, being first duly sworn, deposes and says:

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' 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

.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

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TO PIIILADELPIIIA ELECTRIC CO!!PANY'S-

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RESPONSE TO GENERIC LETTER 84-24 PERTAINING TO y -

W PEACII BOTTOM ATOMIC POWER STATION

' UNITS 2 AND 3 a

3 DOCKET NOS.1-50-277.AND.50-278 g.

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_ REQUEST FOR AN ' EXEMPTION TO - TIIE 10 CFR 450.49' SCIIEDULE REdARDING

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I ENVIRONMENTAL'-QUALIFICATION OF ELECTRIC E

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EQUIPMENT IMPORTANT-TO SAFETY FOR-PEACII - BOTTOM-ATOMIC - POWER -STATION - UNIT -' 2 2

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FEBRUARY:1985i

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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

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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.

. Delivery of equipment, which was

ReasonJfor Delay: 1 ordered--May, 1984,' is now expected by March 31, 1985.

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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 from the condensate storage tank to the suppression pool t

'upon.high' suppression-pool water level.

Reason.for. Delay:

Preoperational testing for these switches will occur at the end of the Unit 2 refueling

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outage.- The refueling outage will be delayed beyond March 31, 1985.

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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.

J odification:

'I'nstallation of Acoustic Monitor ~for SRV-6 7.- -

M position' indication (TMI-Modification).

1 Reason.forLDelay:

Preoperational testing for.the Acoustic-Monitors will occur at the end of the Unit 2-

. refueling' outage.

The refueling outage will be delayed g

'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

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.beyond March 31, 1985.

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ATTACIIMENT 2

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PIIILADELPHIA ELECTRIC COMPANY'S

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^ RESPONSE TO GENERIC LETTER 84-24 w

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PERTAINING TO-s I,

! PEICll' BOTTOM ATOMIC POWER STATION

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IUNITS 2'AND 3

._ o DOCKETLNOS. 50-277 AND 50-278 m

REQUEST-FOR AN EXEMPTION TO TIIE 10 CFR

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- 50.49 SCIIEDULE' REGARDING ENVIRONMENTAL

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. QUALIFICATION-OF-ELECTRIC EQUIPMENT s

- D IMPORTANT : TO SAFETY - FOR PEACII ~ BOTTOM

- 4 ATOMIC POWER STATION - UNIT 3..

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PHILADELHIA ELECTRIC COMPANY 2

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/ PEACH BOTTOM ATOMIC POWER STATION UNITS 2'AND 3 y7

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DOCKET NOS. 50-277 AND 50-278 W

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.~ 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

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- delay inttherstartlof the' Unit 3 refueling outage now precludes

i. implementation prior-to March 31, 1985. - This delay resulted from

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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,

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1985,5tof thel;1mplementation schedule of 10 CFR 50.49.(g) for the followingEPeach Bottom-Unit.3 Environmental-Qualification R aodifications.>

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Modification:. Replacement of valve-actuators on two

'* o' order toDeliminate the-need for actuator: motor brakes.

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'?HPCILyalves.. These actuators-are being replaced in we +

'Rea' son Jfor[ Delay s n Delivery.off tihe valve factuators

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7 -; ordered June,1984, Lis not) expected until March 1985.

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VLAnyTdelayLin delivery wouldl result-in Installation-after (March,31,-1985.v In addition ~, the: valves'will not.become' -

av'allable forcthisiwork until Unit'3"is shut'down'for

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refueling.V

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, :2.c JModification:4 Replacementfof ECCS pump,roomLunit cooler ~

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selector.switchicams:with stainless steel cams.

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o lReasonifor[ Delays"fPhiladelphia ElectrictCompany ha'd:

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, "difficultylinl obtaining'afve'ndor toLprovide.;this-c

~Okcomponent.1AsLa' result,-stainless.steelcams'are'being.

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Hfabricated.byLaivendor"who'does notlhave'an.

m environmentaliqualific'ation testing program..'The'need:

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/ qualification ltestingLfor!thisIcomponet~has' delayed.

installation..The material"was received >the week.of-

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. scheduled-to start until'after: March.31, 1985.

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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

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g 4 l ~ q N 4 ATTAC!DiENT 3 TO s PIIILADELPIIIA ELECTRIC COMPANY'S C 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 FEBRUARY 1985 s ~

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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 ) MO-10-25A,B ) 1 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-J Jfor the Group 1 and;2 valves reveals = UP M,' sthat they are7normally in~their L frequiredyposition~for-safety system functionDand would nottbe. required 4 43 to change l position'for response to a safety system; initiation' signal. y 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- ~ ~ inside and outsi'de' cont'a'inment, they c ~ 4 rwo'uld 'experienceEno adverse-temperature or humidity:during:the fpe r iod hin..which stheir; oper a t ion '^ .mighta be r roquired. : un The?l0-25A,B. valves would,be O ~, . required to i open L post-IIELB; 0 however, both' valves'would not be1 subjected' ' W_ ) ; ~ .w. itosthe-immediate effects of the.same ~" ~ lIELD and.thereforefthelpotential for ~ common' mode failure of these valves-j) ^. pRhp m-n a.

r f; n,; +, ^ ~ .p .~ -~ ~ ,oe m m co.z-Y* ? QQ** y ~ f f s s ~.m .m -w 'r ATTACIIMENT 3 p< i Page 2 of 6

w,

q .o y,, W' iM does not exist. Furthermore, vi 1 W. discussions with the manufacturer indicate that typical actuator drive a

y j

. motor stall torque is approximately 4~ 4 times greater than the static L. my Tbrake torque-capability; therefore, 'it-can be concluded and demonstrated ~" by field experience that the motit? g' r W ~ can-position the. actuator regardless V e? ~,~ ' of brake failure. i -t ~ = I, _4 .,,6 3t s .LS 91A,B <V W Equipment: '+ JRMii__m jS^.foty[ Function: Automatically transfers. IIPCI suction 0 4 ~ H,- from CST-to torus on.high torus d- ,a, x~y, water level. kQubifi$aElon1Ddficiency:1 RadiationLqualification test. d -.y 2 -, ,.t-u (Defi;ciencyjEvaluation:. ~ .The radiation dosage level is below gy - 30 the threshold value for most' ^ materials; the probability of a i - ' -d, AE failure! caused'by. radiation is e b C? w: 11nsignificant. 9 o ' - u n_ #r p d 1 N 3692,N 3693,N3772,N 3773 ;N 3783,N 3784,- QEqui ment: l' /m, 'N3884,N3885,N3994,N3995 (GE-CR-2940 2 ~ Position 1 Select'or.- Control Switch)- 1? E / - 9:: _. v. .y <r ,~.,c ~ 2bSOfotyJFunction:}

Maintain

areatcoolers control gn fcircuit? ' continuity posttaccident gm W,

y, y. timeirequ.iredfis:consistentiwith ^ g4, y p' fassociated ECCS systemLperformancen e

( a cq frequirements..

.,n: y ddddificationiDeficiency:[_ (Testfdocumentation radiation level i ~ toolloW.' $WH-M 4 s - + TDeficiency Evaluati.on::

l. ~

.l .t. ^ lC. Jnj -l % ~ TAl temporary modification has' been y g,my ,~ f.completedftoiensure that theicontrol @jA C, - ~ g e, ' *. -

stationstwill:notEfailtin ?such a7way; Mm

~ 19 -A ias to? disable the areaGeoolers. oThe ;M m ,Econtactsarequired for"oparation;of' f - '4 . 'j y' ^ the ? switchl unders posth LCCdh gt s M4 y _,' c, q cond i t ionsi.w i ll^ no tit ep5(tyt he a r e a r i _tcoolerssinoperable'.. Also,Jthe-. > %A -i ,V ' ' ~ 9%h, 87s

contactsiwhich: are iused :to manually-;

p M,y; ggg - l l-P ^ ?initiateh ope nioniof /the?IIPCI, ' RCIC 'h y&,"g[, 7' *.,

• .f 1 4"s

' cand3 Core.t n. area coolers for5 M' w 1 u survei1 %: ( esting?during normal. 4 Y plant y.;C .n have been removed:to-e t, 45 J$.g,

1, tavoidDtae pv eibilityfo'f the

?, . operation?of'all coolers /in/the. ng,. W 4 3, i y jdM M W~

• -DN

event)of"alswitch'failhe'.

m ~ w p,, +.. g 7 R i gM$ ' \\d.Ff h ' " 5 $q %p'., JQ q. di -k -6S , _ y g' w vsg s n my Y " i, P j*hM e'l]. ' , ',9, ,', d, g% ,f, ] NMessW "..r ' {;6 4i ,Z n Q ,lt 3

c f, GV': ~~L MTr~ ~ ~ - --~ ~ ~ ' gqw W+ y n ~ 9;m9 ?NW:., ,G

a. ; "

F '. $fh!W nf, 'p;: j ATTACHMENT 3 g w Q Af., ~ Page 3 of 6

t. mm,

f.-, p mN . s i l- '; NM, lLe Operation of all area coolers cannot ^ if ' ' .J' r be supported by the ESW System. y:n s - f *Wb "g,.:

N' '

This temporary rewire guarantees 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-

area cooler: control circuit post

.M. ' Maintain electrical': continuity for ^ 9 W .p _ accident, passive essential. gg, ,c mn M '.. [ S [.. M \\ f- ~( y QQualificationiDeficiency: No7 qualification documentation for - tthis? equipment has been located. %J 7 ; j ~ ~

y PL

~ iciencyJEvaluation:f Dwyer Differential Pressure Switches i QfDef Z1 sM# a (DPS's) have been environmentally, ~ $ %gdE T, M-' p#( ~ L ested by Franklin Research Center $CF T t yOld for-PECo.' TheDawitches functioned' .successfully through baseline a 9j 'y ' $W functionalitesting, thermal aging,.

MMM '

radiation aging, seismic: testing and 2 )+ *F; ; 4 fori4.5~ days into the DBA simulation ~ w..f! w . hich represents a postulated post Wp59] ' j ~ *

• t:

~ w g ypPpAg/g, DBA"perlo_diofj13.5-days;- The testh p ' switches;were thermally aged for 7 4Ag% y w.., u-63 My M" ? ^Y Periods off20Dyears-'andu40 years A We .before;DBAltestingowhichJadds to the-' S

Mdm% % % i ^.

-margineof theiDPS's" installed:ati sgM4 MhN Ap - hs)#[; - ~

ThelDPSCfailure;was such thatlthe 1

+ ,4 W 4PBAPSLwhichiare onlyE10iyears old. ] Jgqv%gm. "g1, wr / - o* 3 J^ upre ssure.n actuated '.diaphragmz became'

1 idi j M;7

~ .increasingry?stif f L dur ing.~ the? test; ~ N +' .Jin Land'eventuallyfwould not+ move when d W M." 4 pressurized to opensthe micro switch i f b;w. 1 qc

within?theLDPS.

No-electricalM-. bc c w.w n;au,fM- .$insulati, eon 1 failure:or;;structurait,' &3 a. ~ gg J gpM }g& g$$(Y Z, W - x. W ifailure; occurred;which~wouldsaffact O %f~ ' /V W ;the(operation"offsafety-related _j'4 eguipmentiforgthetentireg31"daysJoff y; dlA,h@, ' W C i ,m Oy ~ ?th~e DBAfsimulation. TheEDPSis ar'e ~ g. Lusedtto controlithe' operation of? 69c "M i ggs3., 9,M _ -area:coolersTin;.ECCStrooms.-;The- ~ M=i ~.. +

1. hw&y1:~.y,1o9 s9 > '<

mE $NM M.?a O failureLof the?DPS=such1that it Will?, not changeistate$does'notiaffectEthe? g w w E' m a m ~,

operation /offthe runn,ingearea-

$, y a'g(y*16 De y J J g m. R Q" m f MENpM, f +A _

/-

~~

cooler.;,These switchesfare'

%p ^ finstalledsinAthe' discharge)sideTof7 f d m . O thefarea coolerifans1which woulds, 1

1. y$C " Gd,

e ' " 4, M reducefthe'ir; operating? emperature? n u qwgj t .u a g%q AM ~ jbyJ10Ldegrees.Fiand infaddition,/ai

• 4

,a g - t10idegree1F marginLwas-addedito the-1, h;i h,MM #D ' y.; _ % dd6~ igeneral3aiea;postulatedEDBA ~ 1 = www.,h4e s s 3 e -U ( O ~ eh h j.gru 4,> M m 3 y- ?A [

g. 7-m ^f- '9w- ~ ~ ^ "p' ATTACHMENT 3 Page 4 of 6

jk 3

temperature resulting in a DBA test temperature margin of +20 degrees F. '2 Failure 1of the DPS could affect the capability of the backup area cooler le from automatically initiating on the k,~ loss of the running cooler. . wv The RHR system (LPCI Model) has four ,wf -pump / motors located in four different rooms with two' area w . coolers /RHR room. The failure mode U g~ ' s# ~ .of the DPS-is.such that it will not ~c . change state after 13.5 days post DBA and initiate operation ofsthe . backup area cooler for the RHR J3-pump / motor. Tho' existence of.the u ,1 backup area coolers isynot required. to.meetmsystem requirements or the .singleEfailure" criteria; as . redundant RHR equipment can meet the - ~ . cooling requirements resulting from E gg < ~ za DBA. ~ Dased on the results ofuthe FRC ~ test, the RHR area coolers will ? start atithe onset of an accident' .. y., ~and c'ycle between the lead fan and-backup; fan (if required ldue to > loss a o'f lead ' f an) for 13.~ 5 ' days. Ten S OE

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 .arealcoolertdidenot~ start, tan-s ~4 '6 -increase?incroom' temperature would. _+10 -beLindicated-in the control-room and-iC 'the operator would!take appropriate 14 j ~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 operation of i

the: area 1 coolers.with the DPS'in-the -1 ]& > closed ' pos.ition. EThe1DPS is? 1' ] normallyfin the closed po'sition during system: shutdown:and doesanot. have-:to changeistateEto initiate g, i 45 operation ofLthe-area' coolers;1 on f y ~ there fore, it'will porform~1ts-- + u

sa fe ty - func. tion..

s i

n

,A ,Basedron-theLfailure mode of-the ' re ~ 'DPS,.the fact thatithe DPS does not 04 "* t5 o ?' f a Maa --5,,,,

~ { ~ [E a,Q. 3. = ATTACHMENT 3 y Page 5 of 6 "A / have to change state to initiate E 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.

PT-6-105 [ Equipment:, Provide reactor-pressure indication

SSfdtyLFunction:.

for operator information. LQualification Deficiency: Post-accident operability time of 101~ days as opposed to existing g qualified post-accident operability n time of 7 hours. 'f De ficiencyh Eval'uation : - . Pressure Transmitter PT-6-105 is ~ located in room 403 andiproviden reactor pressure indication for operator.information. PT-2 f-55A,B,C,D are also located in' room 403,' provide indication for operator e information, and are environmentally a< p 3 qualified. In addition to PT-6-105, 7 a new transmitter will be. installed ~ .to,' enhance the present leve1~of-qualification. _The new pressure 9 transmitters will'. have a post-f- Z- accident operability, time of one year as opposed to a 7-hour post-accident' operability time for the. redundant instrumentsLPT-2 ^ l 55A,B,C,D. - Pressure. Transmitters r .PT-2-3-55A,B,C,D are qualified'to temperature, pressure andiradiation' levelsiin'excessJof-the postulated ~ ? DBA. conditions. ? Based on the foregoing, it can'bc concluded that information will-be available forL jc 3, the operator to take the proper- " C ?" 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: lNo1EQ documentation-available. s (Defih[encyLEval'ation: Temperature Elements TE-2442A,B and u '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 EPRI-NP-2129 Report and Standard IIandbook for Electrical Engineers, m. 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 s emergency. procedures. f( p--= 3 l %- ? e 5 a r er -Y 'd(l .: 3_ .fix p.7 ,.,j - 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 _c m.. ..t :;. 2 a b e d E' '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'.. .?~' . w + es w m _ y - .- PERTAINING TO p ^R .; PEACH BOTTOM 1 ATOMIC POWER STATION

UNITS 2.E 3 m +

~ .m %v - ^- -DOCKET NOS.J50-277.-AND'50-278 n, n p' -. o, ~ w' RESPONSES-TO-NRC'IE BULLETINSi i % s w-- _Y

• a,

=. q g' k cAND INFORMATION' NOTICES. 4 . :, p e ~ q~ L 4 .THAT IDENTIFY ENVIRONMENTAL ~. 3 ~ ~ 1, g ..m yot y e. + ~ ~ . [, =-QUALIFICATION: PROBLEMS RELEVANT' s ' lf - X,

TO PEACH

BOTTOM ATOMIC POWER STATION k

VV + g q j;y-: - ', --s x cp 3. N 48

FEBRUARY.1985 1/

.I s ) .- t y' x 1 lr ';

• i {..

(A~ s.~ c I .4 'fh'I' 4 1 yg ' ' f: r ~ a w

fh 3--

y ,,( . f.:;-..f q l ,a .c ~'g".,;-y-} f ~ 1 ^ 4- } -,g s3. h5 1 i,g{.' 4 P. 1 q>..'f f=; I + '7 A e / ~ - s .w-j' ~.y , 1 -Q::,, w : ,,.-c 1' e-" ' _ b + x .p t .o-- t

Y 4 -3 ,7; : + J d - PIIILADELPIIIA ELECTRIC COMPANY iPEACH< BOTTOM ATOMIC POWER STATION . UNITS 2 & 3 i ~ -DOCKET NOS. 50-277 & 278 9; ii ATTACIIMENT 4 - ^

RESPONSES =TO NRC IE BULLETINS AND

~ ' - INFORMATION NOTICES EIE Bulletin 82-04 ~ ~ b Defi iencie'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 1~ 1 iPo'tential InaccuraciesE:in: Wide lRangeEPressure Instruments used in-y J]~p\\WestinghouseiesignediPlants. D y?t + W' lResponseito-IE-INJ82-11 iPBAPS Units 2 andt3:are not Westinghouse designed plants; i therefore,-IN!82-11 is notiapplicable. M 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-IN182 52 EEQN-l:{ Limitorque^ Valve Operators:- 5

6. 3 e

Limit'drque Qua'lif'icStibn$Reportsion-file-at PECo satisfylthe-s

Specifie_d.EnvironmentalJQualification' Parameters forLPBAPS Units 2-liand '; 3.1 W

.. s; t + W u y 2 .g,. h:h.E- - + w

m %37 q g m. id ~ < # ^ o #;: 3 p, j4 .. ' - @T w-ATTACHMENT 4 P 1' J' Page 2 of 7 l u , en m e

s. -- %

g 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 7' > t ~

O " 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 [ . _ E Penetrations: - c e, y 7 p ag g,foeBrien Electrical Penetrations are.-not installed at PBAPS ~ . LUnits?2 and : 3;; therefore, EEQN-3 -is not applicable. y _.m, 9, LResponse to~IE-IN 82-52 EEQN-4, 5, & 6 - Dresser: Safety Valves: [ t' p.. ~~ 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:,

o s ~ 7 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 q'; > .r, > L t

• ; Responses to IE-IN'82-52 EEQN-8 *l Control-Component' Incorporated

~ ' 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.

y,,

8bi, sL not applicable t g

m m n; ~ e. c N

Response?to 'IE-IN /82-52 EEQN-91 Crosby Safety'LValve73K6::

w n- -. _ ~ ag _.,._,... " i gC W.SkCrosbyfSafety; Valves 3K6:are; not3installedMat 'PBAPS: Units 2 and)3;1 P itherefore: EEQNJ9'isj.not(applicable.: 3 4 1, . _ A,dv[ Rhsponse t'oiIE-I' 82-52 EEQN'-10J-'ASCO SV's:NP-1. Series: 'ri N r s

i m'

.y, ; y ',_. , f~ a ' n '~ 'jPBAPSIUnits'2fandE3-[ASCO SV's.are'NP-8300 series, which.are not1 $ b r.., q g y"

the3 subject ofjIE-IN. 82 EEQN-10;f therefore,

EEQN-10"is : not L 3

33 h applicable. n. s+ ~ 4,- b y '1 r 2 Y m k _t, s L u.. x ___________,,_______.__l_,,,__

bn g .a s _ s, - <.9 ? .M ATTACIIMENT 4 ~ 4 Page 3 of 7 3 c

6 '

k II. ~ u 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; + 7 therefore,'EEQN-llois not applicable'. 4 1 it s5 y jIE IN!83-45" E 4 w #. y: _;h_ 9Environmentdl Qualification' Testing of GE-CR-2940-Position Selector fcontrolDSeitch:- 1- ~ iResponse'to'IE-IN 83-45 ~ t v. PECo ?isireplacing the failed 'componeta(Delrin Cam) with: a g " s. - + stainless. steel cam.. t 7y.5~.- -.~ -,~ TheLJCOiforfthistcontrol?sta. tion'is included on page 2 of' ~ TAttachmentz3. < y + IIE-INc83 72-EEQN-12 thrui24 1 4 'i. ,- ?Environmentall:QualificationTTestiExperience, EEQN.12?thru.24sc w, c_ ^} .) 7 ! Response to IE-IN 83-72'EEQN Environmental > Qualification ~'of- ~ s JEpoxy Grouts _-.and. Sealers,.IE-IN 83-40:- A [' 7 ~ -Epoxy-Groutsfare~~not:usedlat-PDAPS for anchors 7or seals;'thereforen ~ K$ (EEQN-12 7.ist not :applicab1'e'. - + Qy +i.'~ 4 ( .Itesponse to IE-IN 83 72 EEQN Environmental Qualification U 2 g(. l Testing.of,GE-CR-29.40,DPosition/ Selector Contr'ollSwitch) IE-IN'83-- ~ }45: L ^ ~ ~ s i } {.', y 4 ( T [c l ~ )See?-Response to IE-IN 83-45'.- m .g ,~ r.. [ ld% ~ o. g

s. f 3

~ .g, ~ 5 ^ q^ ;[ ~ =.) 3

g $1 - % f 1 Vit c _l . c ATTACID1ENT 4 D 3;a '. Page 4 of 7 n

• p

~ ' v ,s . :-i. 4ResponseCto*IE-IN 83-72-EEQN Anaconda Flexible Conduit: + N,' - KAnacond'ajflexible conduit is installed in primary coatainment at iPBAPS?UnitsL2fand..'3-on Class lE Motor Operated Valves (MOV), Air a j' ^ '[ Operated Valves?(AOV), and: Safety Relief Valves (SRV). This ~' 1 @ iequipment?isielectrically connected by an Anaconda flexible 4: %, ]conduitLt,otarjunction box"with drain holes to avoid water raccumulationb'The junction box,1which'is not a sealed device, g' ~ '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 successfully!LOCA. tested to_ envelope PBAPS postulated accident 'T,- Mconditionst "The environmental conditions referenced in EEQN-13 s excee'dithe: postulated accident conditions for primary containment _* L atiPBAPS Units :.21and ^.3. W p he ) (Re'sponse ?toEIE-IN'83-72 EEQN.14,15,16,17',18 &-19-- Rockwell POST-- ~ l3

LOCA Hydrogen-Recombiners:-

.~ ,s ,4. 5 '[. y 7 i 1RockwelleInternational? POST-LOCA Hydrogen,Recombiners are not-o - installedTatiPBAPS' Units:2fand 3;ttherefore,,EEQN-14,15,16,17)1876 s ;;E - ' f ' - ?l9lare notfapplicable.: W u - y ~ ~ T~] ! Response't'o IE-I'Ni83-72 EEQN-20 -'Barton Electronic, Transmitters:-- 9 y D 0BartonLElec'troniciTransmitters Model 763 are not l' stalled at1 n , I W, g "PBAPSLUnitst2?andE3);therefore, EEQN-20 is.not applicable. a y, a m' 3 Response!to":IE-IN 83-72'EEQN Barksdale Pressure Switches-D2T: and-D2H 2 3p e ~

p m

+ Q,_ 4 JBarksdaleepressur'eiswitchesimodelsEB2Tland.D2H'areLnotJinstalled~ J ati PBAPS : Units f 2? and J 3; l there fore, L EEQN-2111s-' not; applicable L y,; - -+ . g. $l' !,< l .. ~.. ~ ~ -JResponse'to"IE-!N#83-72. ' Static-O-Ring' Pressure' Switches'SN and + ' ,m - ol2N Series:: -. - + c r.,( -1 N rx> ,e., '/ de 14Model*5NNStatic-O-Ring; Pressure Switches:areiinstalledoat:PBAPS,; fi' ?were7 tested by? Franklin!Research Centerifct-PEco:and:successfully: I *- Laeetnalloa_cceptance? criteria.. Modeltl2NLStatic-O-Ring PressureL fg : Switches [arecnotjused.finfClass;lE: applications?at;PBAPS" Units"2:, i v. p,_ ?'W

andl3.?

kl ' c.h,> ~ k. r

l.,, '

s t mi' s s ^& u 'yx ll y, .} :.' - - P 3 7 isp ' w p ) u

(lg,% ~ m.~. ~. l e '; j w (._; c.; u' K :.s., u ATTACIIMENT 4 e. r 0 1w;g - Page 5 of 7 qq gi ~ ~"y~: ~ 24 M:s, "?ResponseStioiIE-IN'83-72 EEQN Barton Transmitters: k; f _

,l h

m iThe;failureimode reported in EEQN-23 occurred at 320 degrees (7. " - i

Fahrenheit.;,The maximum temperature the Barton Transmitter-will 4

?bejexposed?to at:PBAPS. Units.2 and 3 is 128 degrees Fahrenheit; 2, 7 - _ y"I - -:therefore,1EEQN-23fis not. applicable. i J [,~ ~ > 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 ~ each3 refueling 2o'utage'. ' Terminal-: Blocks are not used in the w

Limitorque " operatorsat-PBAPS.

, LIE-IN#84-23' - ,_ /

• 1 4

Y

d

:Re'sult's:ofithM N'RCl Sponsored Qualification Methodology Research Test

{ ~ on3ASCO'~ Solenoid 1Valvess; y . ~;, y

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[ ,'?ResponseL tolIE-IN 84-23 ~ x 1The?SV?siat PBAPS!are rebuilt on-a. routine. Environmental-i C N [7, " iQualificAtionJmaintenance schedule. ~Alsoi ASCO SVfs install'ed in: ~ '; 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 sic 'LIN-IE84M4 y e JD't-lEnvironnestalpQualification.LTesting'ofJRockbestosTCables ~ s ~a y;>; iResponse:toiIE-INi84-44 ~ y - 3 x

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3 6%l.' -t r u, JPEcof:hasitwo~ representativesJon the; industry advisory' committee! to G fassistbinithe?RockbestosTsupplemental2 qualification (testLprogram M .. k ofor(ClassflE: electrical cable'.E;2Also., Dechtel Corporation:has3 ^ ;preparedda' generic; test;reportton Rockbestos' cable whichFaddresses ff, the'- NRCifindings. : 'D + ' 5,/ _% r = Y: i r ^ k' 4 3 Y' i [U r w l1 i I f{l

E r + ^ ATTACHMENT 4 Page 6 of 7 - IE-INI84-47 I ' Environmental Qualification Tests of. Electrical Terminal Blocks: ResponseIto IE IN 84-47 L 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

1. 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.- i IE-IN 84-68 - Potential': Deficiency l in Improperly Rated : Field - Rate'd Wiring to Solenoid Valves: o Respon' e :to IE-INI 84--68 s 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. e a i 3 l? s

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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.~ , / { t $% 4, y7,- b >i G w A.- l 1 s P sv e A 1 -. - ..}. r 5 N, i 'kA e-

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Y ATTACIIMENT' 5 + J-t 9 TO rr ~ ' ~ PIIILADELPIIIA ELECTRIC COMPANY'S. J.. -W: RESPONSE TO' GENERIC LETTER 84-24 y .q. m tw PERTAINING TO: - PEACl!-BOTTOM ATOMIC POWER STATION. UNITS 2fAND 3-

• DOCKET'NOS. 50-277'AND 50-278 REVISION TO PECO EVALUATION 'FOR

AUTOMATIC-VALVE' CORPORATION-.

4 lfi@. -l PILOT' SOLENOID' VALVES ~ 4 4 ' FEBRUARY 1985 s ~ a$ g S ifz I# .. -s L b f .{\\ f~ 5 l J '. ~ s O g 2 f 1 r r ) ~ 1 n ~ s s I ' / a_ i j 6 , + r n t - s 1 - /,L W p) i ~ ikt.. Qy,

en -Ny7 ? 5 ',, ~7 Mi '. J ATTACIIMENT 5 Page 1 of 1 ,) E N ]. g. m y., ; [ 2 PECo-Evaluation r .g , ~

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w, J:-FRC VItem" Number :~43,3 44, ~ 4 5" ~ Unit 2 L 1i w l43, 44,345 Unit 3 Y:: ~. L~ !!? rDescriptioniofi' tem:~Pilotcsblenoid valves for steam rel ef I 7g g !r ' ;~ ' valves and'MSIV's 7 - Automatic Valve Corporation (AVCO) '_') 4' + ? ~ ' Summary of TER r ..g s -e. ' Item: ! Unit' Deficiencies 4 <43-L 2 & _3 1 'y-1 443 0:1 2 s /3' 1

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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-4 % ",fA.,E.:Finkel<oflthe-lNRC indicates'that-the only.deficle'ncytis aging. (Technical' Evaluation Report on PBAPS Unit'2' dated ll/80'conductediby M J'- 1Th'e: Steam' Relief Valveh are' reconditioned every second refueling.

,1 1 ; outage.dand{theJPilot

Solenoid Valvesat Peach Bottom are replaced.

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;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 "k$ 4 ~ ' r/. 3 g:; G% w,

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?A d ',' j. ,L" ~. y. p;_- s , n r a w - y. w' l-.. m 3 w- ...c + Qf s. ? p .) l ,If'l" 1 ,..N yg ATTACIIMENT 6 'fJ m. p-(,- TO t 'PIIILADELP11IA ELECTRIC COMPANY'S

47 s

[ RESPONSE TO-GENERIC LETTER 84-24 'l~ PERTAINING TO ~ ^ 'M PEACl! B'OTTOM ATOMIC POWER STATION n E UNITS 2'AND 3 e. g 0;s. .: DOCKET NOS. 50- 277 AND 50-278 m a:, -P..

REVISION TO TECIINICAL' DISCUSSIONS.

~ ~ gj 05 .0F RELIANCE ECCS' COOLER FAN MOTORS .,+ . y -( < } Q ~ - r :. ' FEBRUARY-1985: '., f J;i. s 9 y! s h t ,,p%_ .'-7a f ' N,aCl' - 's + > n; c E' {}... - b / t lf; _ , A 4 .,.3., i ~ a '.:is , T.) j e s , t f. A r 4 9 ,-fp .,v... i f-f m_ P +- g n .. k' ; ~ s J i L 1 Y r \\ )../ 4.

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,r W1 s TECHNICAL DISCUSSION M, 3 -MU' 4;. 1 ,[ 4 " j k FRC Item No'.:j86, 90 LUnit 2 4M-86,590'- Unit 3 j;... 4 .: m iDescrihtion'offIt'em Reliance ECCS cooler fan motors. ,. y y,G ; ~ . Summary of TER c 3 ,X - gN[ -TItem Unit-LDeficiencies

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1. ' $Aisupplemental report to NUC-9 is appended by letter from Reliance

? JElectric. ;This.tletter restricts the. applicability of the supplemental 4 A.freport;to:Lthe; motor, insulation' system. The PECo analysis (Re f. 112) ~ correlatesithe1 insulation? 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 f

whole.<-

q-JEvaluAtions-TAsinoted in:the TER, PEco reference 112 is a radiation N yanalysisifor the." organic materials.which comprise the. motors' 4 felectricalGinsulation system. =The radiation: analysis o.f the motor is; ~ ~ licompletelinsthatiallithe organic materials?within-the motorJare ~ e Jaddressed.xlThe, motor.fsplice? insulation qualification is covered:by- ,2 rSyst'em1 Component Evaluation Worksheets which are located'in the 9 ~ 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' i %, specifications and' lubricated every three ' (3)L months.. u. = n. i E 'fConclusion's'LBasedton the~abovetinformation',-itJ:isJconclu'ded that the' yReliance; fan motorsiar'e-environmental 1yfqualified for the postulated 4 e o^ 7 accident!; conditions atiPBAPS. ' ~ &n y n7 m ?, 5:."' a 7 g;_ 3 q r,< t f(- si? ,i4 '7e s s 7 /[x t t ^ i <,r q ~ m &1, *

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