ML20198E165
| ML20198E165 | |
| Person / Time | |
|---|---|
| Site: | Summer  |
| Issue date: | 11/30/1992 |
| From: | Skolds J SOUTH CAROLINA ELECTRIC & GAS CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9212040247 | |
| Download: ML20198E165 (2) | |
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-- South CIrolina Electric & ois Ctmp:ny John L skolde l
'i P.O. Dor 88
' Ves President
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Jenkinsville. SC 29065 Nucisar Operations -
4 (803) 345 4040 SCE&G:
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NOVEM3ER 30, '1992 1
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Document Control Desk U. S. Nuclear Regulatory Commission-
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Washington, DC_ 20555 Gentlemen:
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Subject:
VIRGIL C. SUMMER NUCLEAR STATION (VCSNS)
DOCKET NO. 50/395 OPERATING LICENSE N0..NPF-12 REACTOR N0ZZLE SURFACE EXAMINATION RELIEF REQUEST-l (NRR920005).
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. South Carolina Electric &' Gas Company (SCE&G), hereby submits.the attached request for relief.from performing Reactor Nozzle Surface' Examination as required by.the'1977 ASME Section XI Code. :This' request is based.on-ALARA.
j concerns and the ability to acquire higher quality data by remotely conducting a full' volumetric examination of the weld. SCE&G is submitting-the attached relief request in accordance with 10CFR50.55a(a)(3)(ii).-
In order to support the scheduling of activities ~for.the'upcomingJoutage at
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the VCSNS, SCE&G requests the NRC response,and approval of this request by l-January 31, 1993.
i Should you have any questions, please call David Ha11e atf(803) 345-4322.
Very truly yours, John L. Skolds DCH:JLS:smd-Attachment c:.
O. W. Dixon.
.NRC Resident-. Inspector
-R.-R. Mahan J.-B.LKnotts Jr.
R.-J. White NSRC-S. 0.1Ebneter' RTS: (NRR.920005 File (810.19-2) )
General: Managers r
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NUCLEAR-' EXCELLENCE --A SUDMER' TRADITION!
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Attachment. to. Document Control Desk Le'tter -
j NRR 920005 Pa,ga 1 of.1 Reactor Nozzle Surface Examination Relief-Request Components: Reactor Vessel.0utlet Nozzle Safe End' Welds-Code Class 1 (See List Below)
Table IWB-2500-l'
[
isometric Drawina No.
Weld No.
Cateaory item No.
l-CGE-1-4100 1*
B-F B5.10 CGE-1-4200 1*
B-F B5.10 CGE-1-4300 1*
B-F B5.10-CGE-1-4100 16*
B-F B5.10 CGE-1-4200 16*
B-F B5.10 i
CGE-1-4300 16*
B-F B5.10 l
CGE-1-4100 2
B-J B9.11 CGE-1-4200 2
B-J 89.11 1
CGE-1-4300 2
B-J 89.11 i
CGE-1-4100 15 B-J 89.11 CGE-1-4200 15' B-J 89.11 l
CGE-1-4300 15 B-J B9.11
- Dissimilar Metal Code Requirement:
ASME Boiler and Pressure Vessel Code,Section XI, 1977 Edition including-Summer 1978 Addenda, Table 1WB-2500-1, Category B-F: Item B5.10 and.
Category B-J: Item 89.11, requires the following:
All welds identified above are to have surface examinations and inner one-4 third volumetric ~ examinations performed in accordance with figure IWB-t 2500-8..
Alternate Test:
Perform a full volumetric examination of the weld to the extent practical as noted by Code Case N-460, and discontinue the surface examination.
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Basis for Relief:
A full volumetric examination is a more thorough examination than. the surface and one-third volumetric examination currently required.
The alternate-test will-provide an increased ability 1to identify indications that may exist in the entire region of the-weld. 'Also, because the-examination can be performed in conjunction with the reactor vessel examination, the alternate test reduces the estimated: dose received for the inspection by 2.0 REM. Therefore, the alternate test reduces a radiation exposure hardship and provides an acceptable method of 4
inspecting the welds without affecting the quality and safety of-the plant.
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