ML20091M369
| ML20091M369 | |
| Person / Time | |
|---|---|
| Site: | Vogtle  |
| Issue date: | 05/14/1984 |
| From: | Foster D GEORGIA POWER CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| GN-361, NUDOCS 8406110264 | |
| Download: ML20091M369 (2) | |
Text
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tv samem erecruc s, stem cenerat Manager Vope Project May 14, 1984 United States Nuclear Regulatory Commission File: X78G03-M50 Office of Inspection and Enforcement Log:
GN-361 Region II - Suite 3100 101 Marietta Street Atlanta, Georgia' 30303
Reference:
Vogtle Electric Generating Plant-Units 1 and 2, 50442e/ 50-425; Strut Chanael Ir.stallation Discrepancies; Letter Gh-z99, dated 12/27/83.
Attention: Mr. James P. O'Reilly Gentlemen:
In the letter referenced above, Georgia Power Company indicated that a completion schedule for the evaluation of this concern would be submitted to the NRC by May 13, 1984. This interim report provides the completion schedule as well as the status of the evaluation.
To evaluate the strut nut installation discrepancies in existing in-sta11ations, random samples from the total population of installed cable tray supports with eight bolt connections were selected on a statistical basis.
- pecially trained Quality Control inspectors using a fiber optic scopt then examined each selected installation to detennine the angle of skew of the spring-loaded nut to the in-turned edge of the channel.
To correlate the inspection results with the load carrying capacity of the installations, test data was obtcined from the manufacturers of the strut channel on load capacity of connections in chich only partial engage-ment between the nut grooves and the edge of ths :*. rut channel is provided.
The evaluation of the inspection results is expecto d to be completed by June 29, 1984. Georgia Power Company expects to submit a final report to the NRC concerning the reportability of this concern by July 20, 1984.
To prevent recurrence of the subject installation discrepancier, the construction specification and field procedure addressing raceway system installations have been revised to specifically address the requirements for proper engagement of the strut nut grooves with the in-turned edges of the strut channel.
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OFFICIAL COPY 0
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Strut Channel-Installation Discrepancies Page Two F
This response contains no proprietory information and may be placed
. in the NRC Public Document Room upon receipt.
Yours truly,
. O. Fost r REF/D0F/tdm-xc:
U. S. Nuclear Regulatory Commission Document Control Desk Washington, D. C.
20555 xc:
R. J. Kelly R. E. Conway G. F. Head C. W. Hayes D. N. MacLemore-D. E. Dutton W. F. Sanders R. H. Pinson P. D. Rice R. A. Thomas J. A. Bailey
- 0. Batum G. Bockhold B. M.'Guthrie E. D. Groover L. T. Gucwa M. Malcom H. H. Gregory, III J. T. Beckham, Jr.
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