ML20002E499
| ML20002E499 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 01/23/1981 |
| From: | Nichols T 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 8101280257 | |
| Download: ML20002E499 (2) | |
Text
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SOUTH CAR 0tlNA ELECTRIC a G4s COMPANY
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C" m,,[, j,,, Q,("g January 23, 19S1 wao. c=~x.,
Mr. James P. O'Reilly, Director U. S. Nuclear Regulatory Co==ission Region II, Suite 3100 l
A la a bergi 303 3
Subject:
Virgil C. Su=mer Nuclear Station
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Docket No. 30/39';
Potential Significan Deficiency Penetration Assemblies
Dear Mr. O'Reilly:
On 12/24/80, Mr. John Rausch of NRC Region II was infor=ed by telephone of a potential significant deficiency concerning penetration assemblies.
Two separate concerns were noted.
The first involved the o=ission, by the construction forces, of a one inch layer of insulation which was required to be placed around several of the process pipes, as they each pass through the bellows portion of the penetration assemblies. The function of the insulation is to reduce heat input to the bellows, thus =aintaining its service life. This condition has been reviewed by our engineering people who have concluded that the bellows area constitutes a secondary seal for the entire penetration assembly. A postulated failure of the bellows would have no effect on containment integrity which is provided by the pri=ary seal, which would not be affected by failure of the bellows.
I Based on the above, it has been deter =ined that the omission of the-insulation in the bellows would not adversely affect the safety of operations of the plant and hence does not constitute a significant deficiency under 10CFR50.55(e).
The second concern involves mislocation of a centering sleeve on the process piping whose function is to properly ' distribute-piping loads to the penetration assembly. This condition is presently under investigation by our engineering people.and a further report will be provided as soon as avail-able.
This is considered an interin report on this item.
If there are any questions, please contact us.
O Very truly yours,.
gj Y ( W,d.f) 810128 0 SS~1
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-Page Two
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Mr. James P. O'Reilly January 23, 1981 Page Two cc:
V. C. Su==er G. H. Fischer T. C. Nichols, Jr.
E. H. Crews, Jr.
O. W. Dixon, Jr.
W. A. Williams, Jr.
O. S. Bradha D. A. Nauman R. 3.Clary A. R. Koon A. A. S=ith J. B. Knotts, Jr.
J.
L. Skolds B. A. Sursey ISE (Washington) 3_
NPCF/Whitaker File t
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