ML20065F408
| ML20065F408 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 09/22/1982 |
| From: | Dixon O SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | James O'Reilly NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II) |
| References | |
| 10CFR-050.55E, 10CFR-50.55E, NUDOCS 8210010348 | |
| Download: ML20065F408 (2) | |
Text
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- d SOUTH CAROLINA ELECTRIC & GAS COMPANY POST OPPICE 764 COLUMetA. south CAROUNA 29218 O. W. DixoN, JR.
Septaber 22, 1982 viC. enn.,oeur NUCLE An OPERAflONS Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Qmmission
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Region II, Suite 3100 101 Marietta Street, N. W.
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Subject:
Virgil C. Stamer Nuclear Stath h~3 Docket No. 50/395 Operating License No. NPF-12 3:e Significant Deficiency a
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Dear Mr. O'Reilly:
On July 26, 1982, Mr. John Rogge of your office was informed of a significant deficiency under the provisions of 10CFR50.55(e). An interim report was sent on August 25, 1982. Wis deficiency involved the penetration gap requirments of safety related piping systems. When a safety related piping syste passes through a wall sleeve, specific minimtn clearances must be provided to allow for the predicted thermal / seismic movement. When these clearances are not provided, the sleeve bec. emes a restraint not considered in the original analysis.
Penetration gaps for safety related piping were measured and cmpared against the latest pipe movements frm the analyses.
It es found by a follow-up QC inspection that previously accepted penetrations had lesu clearance than when accepted. This was the result of the lack of comunication between organizations. Construction crews were still in the process of installing insulation and penetration seals. Seals and insulation in several cases had been installed after Oc measurement of the existing clearances. We ir: pact of this could have been that safety related piping would be inproperly supported and exceeding design allcwable stresses.
l Subsequently, a 100% reinspection and remeasurement program was impleented to determine the as installed conditions again. A review was made for necessary clearances and modifications were identified and inplemented. Modifications to piping penetrations for insulating and/or sealing purposes frm this time on were handled through the Field Change Request program and specifically reviewed for required pipe clearances. In this manner it was ensured that future building sealing work would not violate the piping novement requirments.
Wis is a final report on the subject.10CFR50.55(e). If you require additional information, please advise.
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8210010348 020922
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Mr. James P. O'Reilly September 22, 1982 Page 2 cc:
V. C. Staner T. C. Nichols, Jr.
G. H. Fischer O. W. Dixon, Jr.
H. N. Cyrus H. T. Babb D. A. Nauman M. B. Mtitaker, Jr.
W. A. Williams, Jr.
O. S. Bradham R. B. Clary M. N. Browne A. R. Koon H. Radin Site OA C. L. Ligon (NSRC)
G. J. Braddick J. L. Skolds J. B. Knotts, Jr.
B. A. Bursey I&E (Washington)
Doctanent Managenent Branch (55e, 21, LER)
NPCP File
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