ML19312D459
| ML19312D459 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 03/03/1980 |
| From: | Dutton D GEORGIA POWER CO. |
| To: | |
| References | |
| GM-577, NUDOCS 8003240439 | |
| Download: ML19312D459 (2) | |
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' Georga Power Company Post OfSce Box 4545 L Atlanta, Georgia 3o3o2 T *on e 404 522-eow
,pr Vogtle Project Southem Company Services, Inc Post Office Box 2625
! Sirmengharn, Alabama 352o2 Telephone 2o5 8706o11 United States Nuclear Regulatory Commission File: X78G03M5 Office of Inspection and Enforcement Log:
GM-577 Region II - Suite 3100
- 101 Marietta Street, N.W.
Atlanta, Georgia 30303 Attn: Mr. James P. O'Reilly
Reference:
RII: JP0; 50-424; 50-425; Potential 10CFR50.55(e)
(Embed Plate Load Capacity Tables)
Gentlemen:
On January 28, 1080 it was reported to your office that a potential item under 10CFR50.55(e) existed at Plant Vogtle concerning embed plate load capacity tables.
The nature of the potential deficiency is as follows:
The load capacity tables for embed plates were determined on the basis of full engagement area and no lateral loads
-(on the weak' axis of the embed). Application of these tables in the design of supports, in some cases, has-been based on partial engagement and has allowed lateral loads in some instances. It is possible that some pipe support i
designs released for construction have exceeded the allow-i able embed loads based on partial engagement and due to the
. presence of the lateral loads. This affects approximately
- 5760 supports.
l At the present time no. pipe supports have been installed. Georgia Power Company's Construction and Quality Assurance Departments-have been instructed to suspend any installation activity relative to pipe supports until design adequacy,~ and modifications, if any, have been resolved.
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~ United States Nuclear Regulatory Commission Attn:- Mr. James P. O'Reilly
'A' detailed review, analysis and identification of the necessary modification of the pipe supports is currently under way. This review is ?xpected to be complete and a final report issued by May 16, 1980.
This response contains no proprietary information and may be placed in the NRC Public Document Rooms upon receipt.
Very tr
- ours, qW@A Doug Dutton Project General Manager DED:tp xc:
U. S. Nuclear Regulatory Commission Attn: Victor Stello, Jr. Acting Director Office of Inspection and Enforcement Washington, DC 20555 M. D. Hunt, NRC Region II J. H. Miller, Jr.
F. G. Mitchell, Jr.
R. J. Kelly
. C. F. - Whitmer R. E. Conway D.' E. Dutton R. H. Pinson-J. T. Beckham, Jr.
R. W. Staffa K. M. Gillespie L. T. Gucwa C. R. Miles Jr.
E. D. Groover D. L. McCrary R. A. Thomas
- 0. Batum J. A. Bailey M.- Z. Jeric B. L. Lex
.