ML20108D771
| ML20108D771 | |
| Person / Time | |
|---|---|
| Site: | Calvert Cliffs  |
| Issue date: | 05/02/1996 |
| From: | Cruse C BALTIMORE GAS & ELECTRIC CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9605090013 | |
| Download: ML20108D771 (2) | |
Text
I CumEs II. CRtJSE Baltimore Gas and Electric Company Vice President Calvert Cliffs Nuclear Power Plant Nuclear Energy 1650 Calvert Cliffs Parkway Lusby, Maryland 20657 410 495-1455 May 2,1996 U. S. Nuclear Regulatory Commission Washington, DC 20555 ATTENTION:
Document Control Desk
SUBJECT:
Calvert Cliffs Nuclear Power Plant Unit Nos.1 & 2; Docket Nos. 50-317 & 50-318 I
Request for Approval to Use Code Case N-389 of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code
REFERENCES:
(a)
Letter from Mr. C. H. Cruse (BGE) to NRC Document Control Desk, dated April 20,1995, Request for Approval to Use Code Case N-389 of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (b)
Letter from Mr. D. G. Mcdonald, Jr. (NRC) to R. E. Denton (BGE),
dated May 10, 1995, Calvert Cliffs Nuclear Power Plant, Unit No. 2 Request for Approval to Use Code Case N-389 of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code (TAC No. M92073)
In accordance with the requirement of Nuclear Regulatory Commission Regulatory Guide 1.147, Baltimore Gas and Electric Company hereby requests use of Code Case N-389 of the American Society of Mechanical Engineers Boiler and Pressure Vessel Code for its Calvert Cliffs steam generator repair / replacement work.
Code Case N-389, " Alternative Rules for Repairs, Replacements, or Modifications,Section XI, Division 1," allows use of Editions and Addenda of American Society of Mechanical Engineers Boiler and i
Pressure Vessel Code,Section XI, Division 1, subsequent to those specified in the licensee's inservice inspection program, provided the Edition and Addenda have been accepted by the enforcement and regulatory authorities having jurisdiction at the plant site. Regulatory Guide 1.147 permits use of Code Case N-389 provided the applicant submits for approval the appropriate Edition and Addenda of the Code that is to be used for the repair, replacement, or modification, in addition to those conditions specified in the Code Case, before start of work.
l b 9605090013 960502 PDR ADOCK 05000317 p
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Document Control Desk
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May 2,1996 Page 2 The Code of record for Baltimore Gas and Electric Company's Calvert Cliffs Nuclear Power Plant inservice inspection isSection XI,1983 Edition, through Summer 1983 Addenda. Baltimore Gas and Electric Company plans to apply Code Case N-389 to use Section XI 1989 Edition for the purpose of installing remote welded tube plugs in Calvert Cliffs steam generator tube sheets. The plugs will replace tubes that will be pulled for failure analysis as part of the steam generator insenice inspection. The remote j
welding system uses an automated repeatable process which performs a high quality weld.
Baltimore Gas and Electric Company has previously requested and received approval to adopt Section XI 1989 Edition for the purpose ofinstalling the remote welded tube plugs (References a and b). However, both the request and the approval was specific to the 1995 Calvert Cliffs Unit 2 refueling outage steam generator inservice inspection activities. Our current request is to adopt Section XI 1989 Edition in connection with any future similar application involving the use of remote welded tube plugs for both units.
Should you have questions regarding this matter, we will be pleased to discuss them with you.
Very truly yours,
/
j, /
CHC/GT/bjd
/
cc:
D. A. Brune, Esquire T. T. Martin, NRC J. E. Silberg, Esquire Resident Inspector, NRC Director, Project Directorate I-1, NRC R. I. McLean, DNR A. W. Dromerick, NRC J. H. Walter, PSC l
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