ML17263A245
| ML17263A245 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 04/19/1993 |
| From: | Mecredy R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Andrea Johnson NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM), Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 9304260285 | |
| Download: ML17263A245 (6) | |
Text
ACCEL~~ gg~lgggggfg+0@@rS' ACCESSIPQ NBR:9304260285 DOC.DATE: 93/04/19 NOTARIZED: NO DOCKET FPCIL';50-244 Robert Emmet Ginna Nuclear Plant, Unit 1, Rochester G
05000244 ARITH.NAME AUTHOR AFFILIATION MECREDY,R.C.
Rochester Gas a Electric Corp.
RECIP.NAME RECIPIENT AFFILIATION JOHNSON,A.R.
Project Directorate I-3
SUBJECT:
Forwards Relief Request 24 from ASME Code,Section XI requirements for hydrostatic testing for replacement activities already in progress during present refueling outage,per NRC 900806 ltr re ISI program SER.
DISTRIBUTION CODE:
A047D COPIES RECEIVED:LTR ENCL SIZE:
TITLE: OR Submittal: Inservice/Testing/Relief from ASME Code NOTES:License Exp date in accordance with 10CFR2,2.109(9/19/72).
05000244 D
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NOTE TO ALL"RIDS" RECIPIENTS:
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LTTR 15 ENCL 12
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iriiiiirir riririr riijrjjjjjii iiiiriiii ROCHESTER GAS AND ELECTRIC CORPORATION o
89 EAST AVENUE, ROCHESTER N.Y. 1464g-0001 ROBERT C MECREDY Vice President Glnne Nudeer Production April 19, 1993 TELEPHONE AitErtcooE7ie 546.2700 U.S. Nuclear Regulatory Commission Document Control Desk Attn:
Allen R. Johnson Project Directorate I-3 Washington, D.C.
20555
Subject:
Quality Assurance Manual, Appendix B
Ginna Nuclear Power Plant Inservice Inspection ASME Section XI Required Examinations R.E.
Ginna Nuclear Power Plant Docket No. 50-244 Ref.(a):
Letter from A.R. Johnson (NRC), to R.C.
Mecredy (RGE),
Subject:
Quality Assurance Manual revision, Appendix B, dated January 12, 1993 (b):
Letter from A.R. Johnson (NRC), to R.C.
Mecredy (RGE),
Subject:
Third 10-year In Service Inspection Program Safety Evaluation Report dated August 6, 1990
Dear Mr. Johnson:
The purpose of this letter is to request relief from the provisions of the ASME Code,Section XI, requirements for hydrostatic testing for replacement activities at Ginna Nuclear Station.
Because this activity is in progress during our present refueling
- shutdown, action on the attached Relief request No.
24 is requested by April 25, 1993.
This request is for a "one-time" use for the activity described in the relief request.
Very truly yours, Robert C.
Mec edy REJ4279 Attachment 26O136
~304260285 930419 PDR.'DOCK 05000244
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xc: Mr. Allen R. Johnson (Mail Stop 14Dl)
Project Directorate I-3 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 f24 SCOPE This request for relief is for a "one-time" use for the replacement of four Class 3 service water valves.
The four valves being replaced are valve numbers
- 4663, 4013,
- 4027, and 4028.
The replacement represents a
previously unscheduled activity attributable to defects encountered during a refurbishment program.
The replacement of the valves is being performed to the 1986 edition of ASME B&PV Code,Section III.
An evaluation to establish the work area test boundaries for the valve replacements was performed as discussed below (refer to drawings 33013-1250 sheet 3 for V-4663 and 33013-1237 for V-4013, V4027, V-4028):
All replacement valves are gate valves.
Isolation boundaries for the valves would require the use of butterfly valves, making an elevated (hydrostatic) pressure test impractical.
(see Relief Request f14 approved in Reference b).
RELIEF REQUESTED I.
Component for which Relief is Requested:
Service Water System, Rules for Hydrostatic Testing of Repairs, Replacements or Modifications to pressure retaining Class 3
components.
- 1. Installation of isolation valves a.
V-4663
- b. V-4013
- c. V-4027
- d. V-4028 II. ASME Requirement from which Relief is Requested:
Hydrostatic Testing of Repairs, Replacements or Modifications on Class 2 or 3 systems is required by IWA-4400 which specifies that hydrostatic testing shall be performed to IWC-5222(a) and IWD-5223(a).
The system hydrostatic test pressure shall be at least 1.10 times the system pressure P, for systems with Design Temperature of 200 F or less, and at least 1.25 times the system pressure P, for systems with Design Temperature above 200'F.
The system pressure P, shall be the lowest pressure setting among the number of safety or relief valves provided for overpressure protection within the boundary of the system to be tested.
For systems (or portions of systems) not provided with safety or relief valves, the system design pressure P~ shall be substituted for P,.
III. Proposed Alternate Method:
ALTERNATIVE PRESSURE TEST REQUIREMENT FOR WELDED REPAIRS OR
=
INSTALLATION OF REPLACEMENT ITEMS BY WELDING For Class 3
Using ANSI B31.1 and ASME BGPV Code Case N-416 as a basis for
- relief, Rochester Gas and Electric considers the following alternative requirements to be acceptable:
1.
NDE shall be performed in accordance with the methods and acceptance criteria of Subsection ND of the 1986 Edition of Section III.
2 ~
3 ~
Prior to, or immediately upon return to service, a
VT-2 visual examination shall be performed in conjunction with an inservice or functional leakage
- test, using the 1986 Edition of Section XI, in accordance with IWA-5000, at nominal operating pressure and temperature.
Use of this Relief request will be documented on the NIS-2 Form for the Replacement.