ML20206G363
| ML20206G363 | |
| Person / Time | |
|---|---|
| Site: | Sequoyah  |
| Issue date: | 11/04/1988 |
| From: | NRC OFFICE OF SPECIAL PROJECTS |
| To: | |
| Shared Package | |
| ML20206G037 | List:
|
| References | |
| NUDOCS 8811220250 | |
| Download: ML20206G363 (2) | |
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.. l SAFETY EVALUATION REPORT BY THE OFFICE OF SPECIAL PROJECTS EMPLOYEE CONCERN ELEMENT REPORT EN 21001 "SENSITIVE ECUIPMENT LOCATED IN HARSH ENVIRONMENT" TENNESSEE VALLEY AUTHORITY SEf)UOYAu NUCl_ E AR *
'o PLANT UNITS 1 & 2 DOCKET NOS. 50-327 AND 50-328 I.
Subiect Category:
Engineering (EN 200)
Subcateg:ry:
E0 Precess (EN 210)
Elerent:
Sensitive Equierent Located in Harsh Environeent (EN 21001)
The basis for Elerent Repert EN 21001 Revision 1 dated January 22, 1987, is Employee Concern IN E5-068-002 which states:
"Sersitive equicment, i.e. instruments and instrurent panels are loca '.
in a harsh envirerrent.
CI stated that the 1ccation of this equiere is in the betten of the reactor 6nd part way up the building.
Unit not specified."
This concern was evaluated by TVA as pctentially nuclear safety-related and potentially applicable t: Secuoyah (generic).
Surrary of Issue The issue defined by TVA is that certain sensitive equipr.ent, such as instrurents and instrument panels, is located in a harsh environeent near the icwer portion of the reactor.
Evaluation TVA personnel detemired that the concera is valid in that sensitive ecuipment is located in the areas dascribed.
However, it was detereined that the concern was krewn (reference WESTEC/TVA repert entitled "Management Review of Envirenrental Gualificatice Activities and Documentatiu, for Ccrpliance with 10 CFR !O.49." cated Septerter 25, 1955) ard apere:riate ressures are being ta'tr te er:ure creeatility cf tfis ecuifrert in tnt ervironrental CCnditicr.s
' hat exist.
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2 i
Sirce the conce red individual (CI) did net identify specific ecuipment er elaberate as te what specific environmental conditions (norral operating i
enviroerent or design basis accicent environment) were of concern, TVA evaluated tne concern relative to safety-related equipment Jocated in har ervironrents and covered under 10 CFR 50.49.
ecuierent cuelificatien (EC) pecgram, which was developed as a result of the KESTEC/7VA report, is adequate to ensure that safety-related, sensitive ecuipment located in the areas described will perfom their respective functiens in the harsh snvirorsents in which they must operate.
IV.
Conclusions The NEC staf f belieses that the TVA investigation of the concern was ad the concern as described in Element Re and their resolutien e#
8-12, 1986, Revision 1, is acceptable.
EQ progran January 6-;7, February 1014, June 23-27, and Although deficiencies were found during the inspections, TVA and e final inspectiet corrected the deficiencies or will have them corrected prior to restart.
restart.
Subject to completien e' the Seouoyah EQ program by TVA an Seouoyah is in cere14aace with "O CFR 50.a9, the staff believes t Secueyah EQ program will ensure satisfactory resolution of this issue.
ted e4r V.
Since the writing of this SER, TVA has completed the.Secuoyah E has certified that Secuoyah Unit 2 is in compliance with 10 CFR 50.49 letters to the NRC dated March 24, 1987 and February 77, 1988.
The staff i
concludes that the issuarce of 10 CFR 50.49 avalifica I&C equiprent has been satisfactorily resolved by the Sequoyah E0 progra i
3ince the writing of this SER and the closure of this issue for Secucyah In letters datec Unit 2, TVA has completed the EQ Progran for Sequoyah.and Nove harch 24, 1987 Based on this, the staff concluces is in ccepliance witn 10CFR50.49.
that this employee concern has satisf actorily been resolved by the Secucyah EQ progran.