ML17264A266
| ML17264A266 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 11/27/1995 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Andrea Johnson NRC (Affiliation Not Assigned), NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9512010224 | |
| Download: ML17264A266 (7) | |
Text
PR.IC3A.I EV 1',ACCELERATED RIDS P ROC ESSIVE GW REGULATORY INFORMATION DISTRIBUTION SYSTEM (RIDS)
V ACCESSION %BR: 9512010224 DOC. DATE: 95/11/27 NOTARIZED: NO DOCKET FACIL:50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 AUTH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas
& Electric Corp.
RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.
P
-04 0
05000244 R
SUBJECT:
Submits proposed alternate method portion of ASME Section XI Required Exams Relief 31,Rev 1.
DISTRIBUTION CODE:
A047D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: Inservice/Testing/Relief from ASME Code GL-89 NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).
RECIPIENT ID CODE/NAME PD1-1 LA JOHNSON,A INTERNAL: AEOD/SPD/RAB NRR/DE/ECGB NRR/DE/EMEB OGC/HDS3 RES/DSIR/EIB EXTERNAL: LITCO ANDERSON NRC PDR
, COPIES LTTR ENCL 1
1 1
1 1
1 1
1 1
1 1
0 1
1 1
1 1
1 RECIPIENT ID CODE/NAME PD1-1 PD LE CEKXE~ 1 NRR/DE/EMCB NUDOCS-ABSTRACT RES/DET/EMMEB NOAC COPIES LTTR ENCL 1
1 1
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NOTE TO ALL"RIDS" RECIPIENTS:
PLEASE HELP US TO REDUCE iVASTE! CONTACT'I'IIE DOCL'CLIENTCONTROL DESK, ROOM PI-37 (ERAT. S04.2083 ) TO ELlihII.PATEYOUR NAi!EFROil DIS fRIBUTIONLISTS I'OR DOCUMEN'I'S YOL'ON"I'LEWED!
TOTAL NUMBER OF COPIES REQUIRED:
LTTR 15 ENCL 14
AND ROCHESTER GASANDELECTRICCORPORATION ~ 89 FASTAVENUE, ROCHESTER, N.Y 146d94MI AREA CODE716 546-27M ROBERT C. MECREDY Vice President Nvcteor Operations November 27, 1995 U.S. Nuclear Regulatory Commission Document Control Desk Attn:
Allen R. Johnson Project Directorate I-1 Washington, D.C.
20555
Subject:
Ginna Station Inservice Inspection Program ASME Section XI Required Examinations Relief Request No. 31, Revision 1
R.E.
Ginna Nuclear Power Plant Docket No. 50-244 Ref. (a):
Letter from R.
C. Mecredy, RG&E, to A. R. Johnson,
- NRC,
Subject:
Ginna Station Inservice Inspection Program ASME Section XI Required Examinations, Relief Request 31, dated October 11, 1995.
Dear Mr. Johnson:
The purpose of this letter is to revise the "Proposed Alternate Method" portion of the subject request as provided in the referenced letter.
The basis of this relief request is the recently issued ASME Section XI Code Case N-416-1.
The alternative examination and testing requirements presented in this relief request have been revised as indicated by change bars to more closely reflect the Code Case.
This request is being made in support of the steam generator replacement activity scheduled for the upcoming spring 1996 refueling outage.
As such, we request your action on this item by December 5,
1995.
Any questions regarding the scope or timing of this relief request should be directed to George Wrobel of my staff at (716)724-8070.
Very truly yours, Robert C. Mecredy REJK407 0> 000 J tIt5i20i0224 tst5ii27 PDR ADOCK 05000244 9.
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xc:
Mr... Allen R. Johnson (Mail Stop 14B2)
Project Directorate I-1 Washington, D.C.
20555 U.S. Nuclear Regulatory Commission Region I 475 Allendale Road King of Prussia, PA 19406 Ginna Senior Resident Inspector
RELIEF REQUEST NO.
31 CODE CASE N-416-1 I.
Com onents for Which Relief is Re uested:
All Class 1, 2, and 3 systems.
II.
ASME Re uirements for Which Relief is Re uested:
Article IWA-4000 and IWA-5000 hydrostatic pressure test requirements.
III. Basis - Code Case N-416-1:
The above Articles require that hydrostatic pressure testing be performed after 'elded repair or installation of replacement items by welding on ASME Class 1,
2, and 3
pressure boundary components.
The higher pressures imposed on the pressure boundary components during hydrostatic testing do not challenge the structural integrity of the material, and produce only a
slight enhancement in leak detection capability.
The additional leakage, above that which occurs during a system pressure test at nominal operating pressure, is inconsequential in determining pressure boundary integrity.
The Code Case N-416-1 provides an acceptable alternative to these requirements.
In addition, the added burden of requiring special maintenance activities for isolation of components to be tested, such as; temporary gagging or removal of relief valves installed to prevent overpressurization, leaktight repair of valving which does not normally serve a pressure isolation function, pinning of applicable
- supports,
'and installation of portable hydrostatic pressure pumps can be avoided.
Adoption of this Code Case will provide for substitution of additional NDE and a system leakage test, conducted at nominal operating
- pressure, for the post-repair/replacement hydrostatic test, currently required for Class 1,
2, and 3
systems.
IV.
Pro osed Alternate Method:
The requirements of Code Case N-416-1 will be implemented as alternate provisions to the ASME Section XI Code, 1986 Edition
- with, no Addenda, for Class 1,
2, and 3 pressure boundary component welded repairs and installation of replacement items as follows:
NDE shall be performed in accordance with methods and acceptance criteria of the applicable Subsection of the 1992 Edition of ASME Section III. In addition, for Class 3 pressure retaining welds (butt and socket) a surface examination of the root layer shall be performed when those pressure retaining welds are required to have a
surface examination performed in accordance with the 1992 Edition of ASME Section III.
For those Class 3 welds receiving radiography in lieu of a surface examination in accordance with Section III, no additional surface examination of the root layer needs to be performed.
Prior to or immediately upon return to service, a visual examination (VT-2) shall be performed in conjunction with a
system leakage test, using the 1992 Edition of ASME Section XI, in accordance with paragraph IWA-5000, "...at nominal operating
- pressure, or when pressurized to nominal operating pressure and temperature...".
Use of this Code Case shall be documented using an NIS-2 Form.
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