ML20215L521
| ML20215L521 | |
| Person / Time | |
|---|---|
| Site: | Byron  |
| Issue date: | 05/06/1987 |
| From: | Ainger K COMMONWEALTH EDISON CO. |
| To: | NRC OFFICE OF ADMINISTRATION & RESOURCES MANAGEMENT (ARM) |
| References | |
| 3038K, NUDOCS 8705120272 | |
| Download: ML20215L521 (3) | |
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4\\V' ;,7 Address Reply to: Post Omco Box 757 Cwe First Netonal Plaza, CNea00. lHinois V CNca00,IEnces 80800 0767 i
May 6, 1987 U.S.. Nuclear: Regulatory Comunission j
. ATTN:.' Document Control Desk Washington, D.C..20555-
Subject:
- Byron' Station Unit 2 Inservice Inspection Prograai NRC Docket No. 50-455 4
Reference:
- (a) January 21, 1987 letter from S.C. Hunsader to H.R. Denton
'Gentlesen:
l Reference (a) stated Comunonwealth Edison would provide a
. description of the Inservice Inspection (ISI) Program for Byron Unit i
2 by May 6,.1987.
This letter describes the Unit 2 ISI Program and outlines the differences between the Byron Unit 1 and Unit 2
-programs. Attachment A contains a brief summary, by section, of the anticipated changes to the ISI Program to incorporate inspection requirements for Byron Unit.2.
4 Although the coausercial operation date of Unit 2 would dictate use of the 1983 Edition of.the ASME Code, it is hereby requested that the 1980 Edition with Addenda through Winter 1981 Addenda be applied to Byron Unit 2.
The inspection requirements of the 1980 Edition with Addenda through Winter 1981 Addenda only
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differ slightly from the inspection requirements of the 1983 Edition. Use of the same Edition of the~ASME Code as.is being used for Byron Unit I will make implementation of the Unit 2 program much
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easier froni an administrative standpoint. With respect to inuervice inspection requirements, the-design of Unit 2 is nearly identical to j-Unit-1. For these reasons, we wish to maintain a consistent 1
inspection program for Units 1 and 2.
f We expect.to include the Unit 2 inspection requirements in l
the next revision of the ISI Program Plan. 'Our current schedule is to complete this revision to the program in November, 1987.
Please' direct any questions regarding this matter to this b
~ office.
i i
Very truly yours, l
8705120272 870506
/7 PDR-ADOCK 05000455 g,
G PDR K. A. Ainger i
Nuclear Licensing Administrator A0[
cc: Byron Resident Inspector Region III Office
# t 3038K
1 ATTACHMENT A Table of Contents and Summary The program title will become " Byron Units 1 and 2 In-service-Inspection and Testing Program Plan".
The summary will include appropriate references to Unit 2.'
Section 1.0 - Introduction The general information portion will include the appropriate Unit 2 references including the commercial operation date of Unit 2.
Section 2.0 - Inservice Inspection Program Plan for Nondestructive Examination Subsection 2.1 - Revision will include the appropriate Unit 2 references.
3 Subsection 2.2 - Although the individual welds have not been selected for Unit 2 components, the selection criteria utilized for Unit I will be applied to Unit 2.
Unit 2 components will be added to the tables on a per Code Item basis.
Subsection 2.3 - Notes 1 through 7 will apply to both units in varying degrees depending on the Unit 2 component selections. Note 8 will not apply to Unit 2 since there have been no supports removed from integrally welded 4.
attachments. Each note will be preceded by a statement of unit applicability.
Subsection 2.4 - The tables of exempt components will be unit specific, by system.
I subsection 2.5 - The eddy current inspection of the Unit 2 steam generators will be performed in accordance with Byron Technical Specification 3/4.4.5, as is the case for Unit 1.
Subsection 2.6 - The Unit 2 isometric drawings will be
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.added to the Program Plan.
Subsection 2.7 - For each relief request, a statement of unit applicability will be added to " Number of Items".
It is estimated that relief requests NR-1 through NR-13 and NR-15 (NR-14 has been deleted) will apply to both units.
Section 3.0 - Program Plan for Pumps The Unit 2 Program Plan for Pumps has been included in revision 5 of the IST Program for Pumps.
.Section 4.0 - Program Plan for Valves The Unit 2 Program Plan for Valves has been included in revision 6 of the IST Program Plan for Valves.
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Section 5.0 - Program Plan for Component Suports The Unit 1 and 2 Program Plans for Component Supports are identical except for the number of component supports to be inspected. The number of component supports differs due to
- revisions in piping system analysis.
Section 6.0 - Program Plan for Snubbers The Unit I and 2 Program Plans for Snubbers are identical except for the number of snubbers to be inspected.
The number of snubbers has been significantly reduced due to completion of the snubber reduction program on Unit 1.
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