ML19276H619

Forwards Request for Addl Info for Environ Qualification of Class IE Instrumentation & Electrical Equipment.Requests Schedule for Response within Seven Days.Draft NRC Interim Position Re Environ Qualifications Encl

ML19276H619
Person / Time
Site:	Zimmer
Issue date:	11/09/1979
From:	Stolz J Office of Nuclear Reactor Regulation
To:	Borgman E CINCINNATI GAS & ELECTRIC CO.
References
NUDOCS 7912100418
Download: ML19276H619 (6)

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d' j NUCLEAR REGULATORY COMMISSION

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.5 NOV 9 1979 Docket No. 50-353)

Mr. Earl A. Borgmann Vice President - Engineering The Cincinnati Gas and Electric Company P. O. Box 960 Cincinnati, Ohio 45201

Dear Mr. Borgmann:

SU3 JECT:

ENVIRONMENTAL QUALIFICATION OF CLASS IE INSTRUMENTATION AND ELECTRIr.AL EQUIPMENT (WM. H. ZIMMER NUCLEAR POWER STATION, UNIT 1)

During our review of the Wm. H. Zimmer Nuclear Power Station, Unit 1 appli-cation for an operating license we have been evaluating the environmental qualifications of Class IE instrumentation and electrical equipment. This evaluation is being performed on a generic basis as well as plant specific toth for equipment supplied by the NSSS supplier as well as equipment supplied for the Balance-of-Plant. As a result of our evaluation we have requested and ynu have suoplied information regarding this matter. The information provided by you is substantial and is presented in sections of the Final Safety Analysis Recort as well as by reference to Westinghouse Topical Reports and specific equipment testing reports.

As you know, requirements for environmental qualification of Class iE instru-mentation and equipment have been evolving as a result of considerable effort expended by both the staff and nuclear industry. As a result of these efforts we have develeced an interim position regarding environmental qualifications.

A draft cocy of this position is enclosed.

Prior to completion of our review of the qualification related docume.tation you have submitted as part of the Diablo Canyon application, we plan to assess the degree to which the cualification programs described in that document action comoly with the guidelines contained in our interim position. As part of this assessment, we plan to identify that equipment which was not qualified in accordance with our guidelines and, provided it is justified, we will establish a basis for the acceptability of these deviations. To assist us in completing this task cromptly, we request that you provide the information identified in the Enclosure.

1523 097 4/8 rg g l..

NOV 9 1979 Mr. Earl A. Borgmann.

This information should allow us to complete our evaluation and make the deternination that the environmental qualification of Class IE instrumen-tation and electrical equipment is acceptable.

Please inform us within seven days after receipt of this letter of your schedule for providing this information.

Jincerely, f

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Jo n F. Stolz, Chie[/

' ht Water Reactors Branch No.1 Division of Project Management

Enclosure:

Request for Additional Informa ti on cc: See next page 1523 048

007 9 1979 cc:

-ecy '. Conne. Jr., Esq.

David B. Fankhauser, PhD C ~ e, ccro, Corber 3569 Nine Mile Road

'~;- 'enns/' miia r mnue, N. W.

Cincinnati, Ohio 45230

. 2 sri : ton, D. C.

20006

n. Frank '

"noner r

r. '-liia-J. 'Joran School of Natural Resources n "an' Cronsel l'niversi ty o f "ichigan c

~"n : c i r.r r.4 Gas and Electru.

Ann Arbor, Michigan 49109 Cc ma y r.

Cox 900 Mr. Stephen Schumacher Circirrati, Ohio 45201 Miami Valley Power Pro,iect P. O. Box 252

Tiam G. Porter, J r.

Dayton, Ohio 45401

'crter. Eta" ey, Ar.hur 1rc 'lat.

."s. Augusta Prince, Chairperson 27 '..e-. ' read St"cet 601 Stanlev Avenue

01 / ns, 'nic 42215 Cincinnati, Ohio 45226

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"r. Steven G. Smith, Mananer Charles Bechhoefer, Esq., Chairman Enci-oerinc a " reject Centrol Atomic Safety & Licensing Board Sc Clyton r er ana Light Panel e.

C 2 T w, U. S. Nuclear Regulatory Commission

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'lashington, D. C.

20555 Cayte-- Chie 4901 "r. Glenn 0. Briqht C':'ert

curse, stomic Safety and e C.vton r

..e arc Light Board Par.e' c

C m ny U. S. Nuclear Regulatory Commission 0

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ox 1247

'lashington, D. C.

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Cayton, Ch"c J5;Cl Leah S. Mosik, Esa.

'-- J.2 es ri.rn 3'54 Cornell Place r

2" w r, Licensi".e Cincinnati, Ohio 45220

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or~enta!

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're l' ciorit! 1as and N'. Peter Heile, Esq.

Electric Co ma y Assistant City Solicitor

?. 3ex 9C0 Room 214, City Hall C' cic ati, Cr M 45201 Cincinnati, Ohio 45220

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ens *ermaker Atomic Safety and Licensing Board

' rior '. ice p esicent-Ceerations Panel Ze' an arc Sc thern Ohio U. S. Nuclear Regulatory Commission C'cctric Cc ;2ry

'5 ': tn rront Street

'lashington, D. C.

20555 CcV: s, Chic 43215 Atomic Safety and Licensing Appeal Board l'. S. 'Juclear Pegulatory Comission Washington, D. C.

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f Em:LOSURE A:J: :CSAL REQUEST FOR I,' FORMATION (E;ui; ment Cualification)

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.a. i _.. a tj the operationa,i requi, cments of equipment se cr us: 'u r.: ' :r during and subsequent to the design basis accidents

e cc-a-a 2nc are et suf'iciert'y ccmole

e for cur:cses of docur.enting a:u': e-. cu2'i'i 2f :, ca-3 e:ers. There' re, crovice a table listing

' 2:; ;;iss :E safe y-rela ed equi ment and acorcariate qualification

-el2ted data for sacr. as noted in the attachment.

This table should

' c ace 2: 1 ecui: ment iccated both inside and outside of containment,

'nc~uci g balance-o#-clan and nuclear steam syste, supplied equipment.

Me e c: ::" eats ~ ve been cualified by an equipment system test, identi-

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:2:i:- of ne equ : en: is sufficient, i.e., incividua comocnents need d

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?:ui: ect ccm: nents sn:uld be identified where cualified by

e:Srite cs:s :

1 aiysis.

Wnere mere than ene i:en of a given type is

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is cr:y -ecessary :: : resent tre receired in#ormation for one a: eserta:4 ve ':a Of : 2: ty;e for the.orst case env;ronment.

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cated cu: side containment wnich may r.ct have been qualified

2:r 2 enviro-en 2: concitions, tne envircrmental design requirements

':r --i; ecui: en Inculd ce :rovided and rcted as such in column 5.

For 92 c a rea c f n 2 212 n.srere sucn ecui ment is located the normal ooerating e<: : :s i envi-ac er:a concitions should be orovided and noted as such

u n a.

A # ctrote should be provided for each such area to orovide

e :as's :ll: :n2 - r al eserating extremes in envircrmental conditions

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be e <ceeded. Suca basis should include the quality of environ-

~05:2 '. cont 01 sy:: ems, their redundancy, sources of ocwer and C0oling, and

erati g -ecui-e e-ts to maintain suitable environmental conditions during at' cas c' c:2r: crera tio n.

The meni:cring of enviornmental conditions in tu: creas an: 0' the ecuio.ent centrolling such environments should also re 2::r:ssec :: pr: side assurance that sucr condi-icn3 are maintained.

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