ML19350C315
| ML19350C315 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 03/19/1981 |
| From: | Nichols T SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| IEB-79-14, NUDOCS 8103310905 | |
| Download: ML19350C315 (2) | |
Text
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' O,; 7 SOUTH CAROLINA ELECTRIC ac GAD' COMPANY POST OFFICE box 764 COLUMBI A. S. C. 292189 pg lv t
n0 March 19, 1981 0) d/(fn s
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Mr. James P. O'Reilly, Director S.
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3 U. S. Nuclear Regulatory Commission 44
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Region II, Suite 1217
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Atlanta, Georgia 30303 s a s
Subject:
Virgil C. Summer, uclegrQta on. Unit 1 IEB 79-14, R
' lement 2 -
Docket N-0/395 Re:
Previous Response from E. H. Crews, Jr.
to J. P. O'Reilly, dated October 30, 1979
Dear Mr. O'Reilly:
NRC I&E Bulletin 79-14, Revision 1, Supplement 2, required action by South Carolina Electric & Gas Company within 120 days.
The referenced letter re-sponded to this Bulletin as it applies to Virgil. C. Summer Nuclear Station.
Since that response, several changes have been made which modify the approach taken for the requirements of IEB 79-14.
It is the purpose of this letter to inform you of these changes.
All procedurcs and specifications applicable to the fabrication and in-sta11ation of safety grade piping systems are as indicated in the referenced letter with the following exceptions:
1.
Two new procedures, AP-III-03, " Preparation of Field Drawings and Sketches", and AP-III-04, " Field Engineering (Survey)", have been added.
2.
QCP-VII-07 has been replaced by SCE&G Field Quality Control Procedure 6.3.1.
This was necessitated as SCE&G/QC has taken over the inspection function for safety related pipe supports. The inspection program has been baselined by reinspection of all previously installed and inspected pipe supports to SCE&G QCP 6.3.1.
Items one (1) through thirteen (13) of the GAI Systems Walkdown Inspec-tion Checklist (Attachment 1 of the referenced letter) are included in these new procedures.
3.
Af ter pipe supports on a given isometric als installed, the piping con-tractor verifies the isometric by walkdown and actual field measurements (piping lengths, hanger and valve locations, pipe attachments, branch connections, etc.) An "as-built" isometric is then generated by the piping contractor.
Item 14 of the GAI Systems Walkdown Inspection 8103810705 g
Mr. James P. O'Reilly Page 2 3.
(continued)
Checklist is thus satisfied. The "as-built" docu=ent package is then transmitted to the analyst.
If, during the reanalysis, piping over-stress and/or inadequate s :yports are found, a resolution will be determined and implemented.
The resolution could take several for=s, namely:
(a) Redesign of existing supports (b) Addition / deletion of supports, and/or (c) Analytical justification of the supports "as-built".
The resolution will be transmitted to the site for field modification and recorded on "as-built" piping ard/or pipe support drawings.
The piping system design specificatiot; listed in the referenced letter remain in effect as does the approach for the initial piping analysis.
4.
The valve operator orientation, item 15 of the GAI Systems Walkdown Inspection Checklist, is verified under a separate program by GAI and SCE&G. Valve weights have been verified by vendor information as indi-cated in the referenced letter.
.If you have further qt _stions, please advise.
Very truly yours, T. C. Nichols, Jr.
Vice President and Group Executive Nuclear Operations TCN:AA CC: Messrs.
V. C. Summer G. H. Fischer E. H. Crews, Jr.
D. A. Nauman O. S. Bradham O. W. Dixon, Jr.
R. B. Clary W. A. Williams, Jr.
J. B. Knotts J. Skolds B. Bursey NPCF/Whitaker File I&E (Washington)
Document Management Branch
,