ML20102A234
| ML20102A234 | |
| Person / Time | |
|---|---|
| Site: | Fermi  |
| Issue date: | 02/04/1985 |
| From: | Jens W DETROIT EDISON CO. |
| To: | Youngblood B Office of Nuclear Reactor Regulation |
| References | |
| RTR-NUREG-0588, RTR-NUREG-588 NE-85-0274, NE-85-274, NUDOCS 8502080223 | |
| Download: ML20102A234 (2) | |
Text
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. Wayne H.i s.
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N w ww O p mtons j
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6400 North Vexeo Highway I
FermL2 -
N [ d 7 4s m 74 NE-i
-Director..of Nuclear Reactor Regulation Attention: LMr. B. J. Youngblood, Chief
' Licensing _; Branch No. 1
' Division of Licensing U. S.. Nuclear Regulatory Commission r
' Washington, D.C.
20555 j
References:
1.
Fermi 2 NRC Docket No. 50-341
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2.
DECozletter, W. H. Jens to B. J. Youngblood EF2-72237, dated September 7, 1984 t
1:
Subject:
Closure ^of EQ Audit Items
Dear Mr. Youngblood:
.This letter is in response to recent telephone conversations which took place with Mr..M. D. Lynch, NRC Licensing. Project-
' Manager for' Fermi 2, and Mr. A. S..Masciantonio of your EQ-
- Branch.
Thefpurpose,of the conversations was to obtain clarification for two items tx) be' addressed in the next
' supplement of the NRC's Safety. Evaluation Report for. Fermi.2 (concerning ' Eny'ironmen tal --Qualification.
These two items-
- were. originally identified as concerns by the NRC'during the
. Equipment Qualification Audit;which took place at Fermi on-July 16 ~ - 19, 19 84..These concerns are as follows:
1.
Fermi 2 is to. revise the existing ~ ualification q
J
. central files tofdocument, in more-detail', the evaluation of the acceptance criteria established for.. Fermi 2 specificLapplications as compared to
'the results-and~anamolies identified in the test-
-reportsLfor' qualified components.
~2.
-Fermi 2 is-to revise the: qualification central s.
fileLfor theLRosemount 1152 transmitter by
. deleting;the section'of the engineering analysis which utilizes the time / temperature exposure.
- during the1DBA testito demonstrate qualified life Land byLaubstituting aniacceptable approach which-
- is: consistent:with NUREG 0588,' Category II frequirements.
Both' concerns have'been? resolved by Detroit Edison and'the
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?resolutionsthave.beenLincorporated intofthe applicable m%
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'Mr. B. J. Youngblood Februa'ry 4, 1985 NE 0279 Page 2 qualification' central files.
The details of each resolution are summarized as follows:
1.
As. discussed in Reference 2, Detroit Edison performed a review of all the qualification central files for qualified equipment contained in our Response to NUREG 0588, dated July,1983, to determine which files require revision in order to adequately address the NRC's concern regarding the evaluation of ace'eptance criteria and resolution of test anamolies.
From this review is was deter-mined that revision was required for' twenty-eight s
.f the forty-six existing central file packages.
Detroit Edison has compicted and issuedLthe revisions to these twenty-eight central file packages.
2.
Detroit Edison has revised the qualification central file package for the Rosemount 1152 transmitter by_ deleting the section of the tenginee~ ring analysis which utilized the time /
temperature exposure during'the DBA test to demonstrate qualified life.
In' place'of the
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Arrhenius extrapolation, a materials evaluation-
.was added to the analysis.
This materials
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evaluation meets the requirements outlined in the aging section of NUREG 0588 for Category II equipment.
Mr. Masciantonio informed Detroit Edison that these two
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concerns-could be closed out by letter after the resolutions
'had been_ implemented.
Therefore, based on the resolutions summarized herein and their. incorporation intosthe Fermi;2
' qualification documentation, Detroit Edison requests _that the NRC'close out these two issues.
If-you'have-any question, please. contact Mr.f0. K. Earle at (313).586-4211..
Sincerely,
/.
~ h cc:- Mr. ' P.' M. Byron Mr.
M.'D. Lynch Mr..A.'S. Masciantonio USNRC-Document Control Desk
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Washington, D.C.
-20555' t
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