A03174, Forwards Info Re Environ Qualification of safety-related Electrical Equipment in Response to .All Open Items Resolved
| ML20024F118 | |
| Person / Time | |
|---|---|
| Site: | Millstone  |
| Issue date: | 08/18/1983 |
| From: | Counsil W NORTHEAST NUCLEAR ENERGY CO., NORTHEAST UTILITIES |
| To: | Eisenhut D Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML20024F120 | List: |
| References | |
| A03174, A3174, NUDOCS 8309080244 | |
| Download: ML20024F118 (2) | |
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l August 18,1983 Docket No. 50-336 A03174 l
Mr. Darrell G. Eisenhut, Director Division of 1.icensing Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission j
Washington, D.C. 20555 Gentlemen:
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References:
(1)
W. G. Counsil letter to D. G. Eisenhut, dated May 20,1983.
j (2)
R. A. Clark letter to W. G. Counsil, dated April 6,1983.
i (3)
W. G. Counsil letter to R. A. Clark, dated April 25,1983.
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Millstone Unit No. 2 Environmental Qualification of Electrical Equipment May 20,1983 Response to 10 CFR 50.49, Supplemental Information l
The most recent NRC requirements on the issue of environmental qualification l
of electric equipment were promulgated as 10CFR50.49, which became effective on February 22, 1983. Among its provisions was the requirement to provide a submittal on or before May 20,1983, identifying the equipment to be qualified within the scope of the rule and the schedule for achieving full qualification.
This information was provided to the Staff in Reference (1).
Due to the then relatively recent receipt (April 11, 1983) of the Millstone Unit No. 2 SER and corresponding Technical Evaluation Report (TER) via Reference (2), inadequate time had elapsed to complete the equivalent of the "90-day SER response" at the time of our Reference (1) transmittat.
This document is therefore being submitted to fulfill the SER response requirement by responding to the questions raised by the Franklin Research Center (FRC) in Reference (2).
Since our methods for identifying equipment pursuant to 10CFR50.49(b)(2), our interpretation of 10CFR50.49(b)(3), and a description of our preventative maintenance program were provided in Reference (1), these matters will not be reiterated in this submittal. Additionally, the Reference (2) concern regarding verification that the containment spray system is not subjected to a disabling single-component failure was addressed in Reference (3). As such, we consider this issue resolved.
Because of the volume of information being transmitted in this submittal, NNECO has adopted the following format of Attachments to facilitate the assimilation of this material.
M 8309080244 830918 I
PDR ADOCK 05000336
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P PDR
_ Attachment 1:
Chronology and References for Environmental Qualification of Electrical Equipment, Millstone Unit li No.2.
I f :
List of Electric Equipment Important to Safety Requiring Qualification.
I :
Index to SCEW Sheet Package.
I l :
System Component Evaluation Work Sheets, Discrepant J
Equipment Summary Sheets (including Justifications for Continued Operation), and SER/TER Review Sheets.
The Attachment 4 sets of SCEW sheets additionally identify qualification references for your use.
We trust the information supplied here satisfies the concerns of Reference (1)in accordance with the Final Rule on Environmental Qualification of Electrical Equipment,10 CFR 50.49. Based on this submittal, we consider all open items regarding this issue resolved, recognizing that equipment upgrades identified in this submittal must be completed in accordance with the schedule contained in 50.49(g).
Very truly yours, NORTHEAST NUCLEAR ENERGY COMPANY fl l.
W. G. Counsil ~
Senior Vice President Attachments N