ML20082P919
| ML20082P919 | |
| Person / Time | |
|---|---|
| Site: | Brunswick  |
| Issue date: | 11/30/1983 |
| From: | Howe P CAROLINA POWER & LIGHT CO. |
| To: | Vassallo D Office of Nuclear Reactor Regulation |
| References | |
| LAP-83-554, NUDOCS 8312090235 | |
| Download: ML20082P919 (2) | |
Text
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CD&L Carolina Power & Light Company SERIAL: LAP-83-554 NOV 3 01983 Director of Nuclear Reactor Regulation Attention:
Mr. D. B. Vassallo, Chief Operating Reactors Branch No. 2 Division of Licensing United States Nuclear Regulatory Commission Washington, DC 20555 2
BRUNSWICK STEAM ELECTRIC PLANT, UNIT NO. 2 DOCKET NO. 50-324 LICENSE NO. AND DPR-62 INSPECTION OF STAINLESS STEEL PIPING Desr Mr. Vassallo:
As requested by members of your staff, Carolina Power & Light Company (CP&L) submits the enclosed information (Table 1) concerning the shrinkage residual stress effects f rom the weld overlays recently completed on Brunswick Unit 2.
The stresses involved are extremely low and consequently do not. invalidate the previous flawed piping analysis results.
Additionally, CP&L hereby commits to submit to the NRC plans for inspections, corrective actions and/or modifications (including the potential replacement of recirculation and/or primary coolant pressure boundary piping) intended to be performed during the refueling outage scheduled to begin about April 30, 1984, at least 30 days prior to the-start of that outage.
Justification for continued operation of Brunswick Unit 2 will be submitted to the NRC for review and approval at least 30 days prior to startup from the next refueling outage.
Should you have any questions concerning this information, please contact our Licensing Staff.
Yours very truly, m
P. W. Howe Vice President Brunswick Nuclear Project JSD/ccc (8614JSD) cc:
Mr. D. O. Myers (NRC-BSEP)
Mr. J.~P. O'Reilly (NRC-RII)
Mr. M. Grotenhuis (NRC)
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i Table 1 WELD OVERLAY RESIDUAL STRESS EFFECTS ON OTHER WELDS WITHIN THE BRUNSWICK UNIT 2 RECIRCULATION PIPING SYSTEM Weld No.
Increased St rass Level 2-B32-28"-A-14 23.5 psi 2-B 3 2-2 8"- A-8, 20.0 2-E11-20"-A-2 44.0 2-B3 2-2 8"- A-4 44.0 2-B32-28"-B-4 562.0 2-83 2-2 8."-B-5 391.0 2-B32-28"-B-3 664.0 2-83 2-22.AM-5 251.0 2-B32-22-BM-1 0
2-B3 2-28"- A13 13.5 2-B32-28"-B9 386.0