W3P89-0087, Responds to 881220 Request for Addl Info Re ATWS Diverse Scram Sys Isolation Device Design.Util Intends to Defer Response to Schedule Consistent W/Resolution of Generic Diverse Emergency Feedwater Actuation Sys Design
| ML20247M509 | |
| Person / Time | |
|---|---|
| Site: | Waterford  |
| Issue date: | 03/31/1989 |
| From: | Burski R LOUISIANA POWER & LIGHT CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| W3P89-0087, W3P89-87, NUDOCS 8904060071 | |
| Download: ML20247M509 (2) | |
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LO UISI AN A / 317 BARONNE STREET P. O. BOX 60340 POWER & LiGH T NEW ORLEANS, LOUISIANA 70160 (504) 595-3100 E?fs!$$
March 31, 1989 l
W3P89-0087 A4.05 QA I
U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Washington, D.C. 20555 I
Subject:
Waterford 3 SES Docket No. 50-382 License No NPF-38 Response to Isolation Device RAI for the Diverse Scram System
References:
- 1) NRC RAI Letter, D.L. Wigginton to J.G. Dewease, dated December 20, 1988
- 2) W3P89-0153 dated February 3, 1989 Gentlemen:
By Reference 1, the NRC requested additional information concerning the ATWS Diverse Scram System (DSS) design for Waterford 3.
We indicated in Reference 2 that the remainder of the requested information (regarding isolation devices for the DSS) would be submitted by April 1, 1989.
As you know, the CE Owners Group (CEOG) has been involved with the NRC in cc,ntinuing discussions on the ATWS requirement for a Diverse Emergency Feedwater Actuation System (DEFAS). We expect that the CEOG will shortly I
submit DEFAS design concepts for preliminary review.
It is likely, pending NRC concurrence with the DEFAS conceptual design, that the Waterford 3 DSS design would be affected, rendering current plans for DSS isolation devices inapplicable.
8904060071 890331 PDR ADOCK 05000382 P
[8 "AN EQUAL OPPORTUNITY EMPLOYER" h
Page 2 W3P89-0087 This situation has been discussed with the Waterford 3 Project Manager.
Based on our discussions it appears reasonable to defer the response to DSS isolation device questions to a schedule consistent with resolution of the generic DEFAS design.
Very truly yours, 4
R.F. Burski Manager Nuclear Safety & Regulatory Affairs RFB:RRP:ssf cc:
R.D. Martin, Region IV J.A. Calvo, NRC-NRR D.L. Wigginton, NRC-NRR NRC Resident Inspectors Office E.L. Blake W.M. Stevenson l
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