ML031630811
| ML031630811 | |
| Person / Time | |
|---|---|
| Site: | Browns Ferry  |
| Issue date: | 06/11/2003 |
| From: | Abney T Tennessee Valley Authority |
| To: | Document Control Desk, Office of Nuclear Reactor Regulation |
| References | |
| Download: ML031630811 (7) | |
Text
June 11, 2003 U.S. Nuclear Regulatory Commission ATTN: Document Control Desk Mail Stop OWFN, P1-35 Washington, D.C. 20555-0001 Gentlemen:
In the Matter of
)
Docket No. 50-259 Tennessee Valley Authority
)
BROWNS FERRY NUCLEAR PLANT (BFN) - UNIT 1 - RESPONSE TO REQUEST FOR SUPPLEMENTAL INFORMATION ON THE REGULATORY FRAMEWORK FOR THE RESTART OF UNIT 1
References:
1.
TVA letter, T.E. Abney to NRC, dated December 13, 2002, Browns Ferry Nuclear Plant (BFN) - Unit 1 - Regulatory Framework for the Restart of Unit 1.
2.
TVA letter, T.E. Abney to NRC, dated February 28, 2003, Browns Ferry Nuclear Plant (BFN) - Unit 1 - Regulatory Framework for the Restart of Unit 1.
This letter provides additional information requested by the NRC staff during the review of the proposed regulatory framework for the restart of Browns Ferry Unit 1.
In References 1 and 2, TVA proposed a regulatory framework for the restart of Unit 1. On April 24, 2003, TVA representatives met with the NRC Staff in Rockville, Maryland, to facilitate NRC staffs review and approval of the regulatory framework. During the meeting, the NRC requested the following information:
U.S. Nuclear Regulatory Commission Page 2 June 11, 2003
- 1.
The type of American Society of Mechanical Engineers (ASME) Code components that are being replaced and the codes being used for procurement and installation; and
- 2.
How TVA intends to satisfy the requirements for vessel weld inspections.
In response:
- 1.
A table showing the type of ASME Code components that are planned to be replaced and the codes to be used for procurement and installation is enclosed; and
- 2.
TVA will examine the Reactor Pressure Vessel (RPV) closure head welds and RPV shell longitudinal welds.
The examinations will be performed in compliance with the industry Performance Demonstration Initiative (PDI) and ASME Section XI 1995 Edition with Addenda through 1996. TVA will document accessibility limitations and evaluate alternate examination techniques. The supporting documentation will follow the Boiling Water Reactor Vessel Internals Project (BWRVIP) -05 guidance. TVA will request relief from examination for the RPV shell circumferential welds.
If you have questions regarding this issue, please call me at (729) 256-2636.
Sincerely, Original signed by T. E. Abney Manager of Licensing and Industry Affairs Enclosure
U.S. Nuclear Regulatory Commission Page 3 June 11, 2003 cc (Enclosure)
ATTN: Document Control Desk Mail Stop OWFN, P1-35 Washington, D.C. 20555-0001 (Via NRC Electronic Distribution)
U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-3415 Mr. Stephen J. Cahill, Branch Chief U.S. Nuclear Regulatory Commission Region II Sam Nunn Atlanta Federal Center 61 Forsyth Street, SW, Suite 23T85 Atlanta, Georgia 30303-8931 NRC Senior Resident Inspector Browns Ferry Nuclear Plant 10833 Shaw Road Athens, AL 35611-6970 Kahtan N. Jabbour, Senior Project Manager U.S. Nuclear Regulatory Commission (MS 08G9)
One White Flint, North 11555 Rockville Pike Rockville, Maryland 20852-2739
U.S. Nuclear Regulatory Commission Page 4 June 11, 2003 cc (Enclosure):
A. S. Bhatnagar, PAB 1E-BFN R. M. J. Burzynski, BR 4X-C J. E. Maddox, LP 6A-C D. C. Olcsvary, LP 6A-C C. M. Root, PAB 1G-BFN J. R. Rupert, LP 6A-C M. D. Skaggs, POB 2C-BFN K. W. Singer, LP 6A-C E. J. Vigluicci, ET 11A-K R. E. Wiggall, PEC 2A-BFN NSRB Support, LP 5M-C EDMS-K s:\\licensing\\lic\\submit\\subs\\Framework Sup 2.doc
E-1 TYPE OF ASME CODE COMPONENTS THAT ARE BEING REPLACED ON UNIT 1 AND THE CODES BEING USED FOR PROCUREMENT AND INSTALLATION PLANT SYSTEM TYPE OF COMPONENT REPLACEMENT COMPONENT PURCHASE CODE REPLACEMENT COMPONENT INSTALLATION CODE TYPICAL EXAMPLE Core Spray (Sys 75)
Pipe and Fittings Valves Newly purchased materials are being purchased to ASME Section III, Class 1 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
New materials being utilized from TVAs existing inventory were typically purchased in the 1980s and were purchased to varying ASME Code Editions depending on the year of purchase.
The installation of the piping systems will be to the USAS B31.1.0 - 1967 Edition or later as allowed by ASME Section XI.
ASME Section XI, 1995 Edition w/1996 Addenda, is utilized for the Repair/ Replacement Program.
The safe ends are being newly purchased to the ASME Section III, Class 1 (equivalent), 1995 Edition w/
Summer 1996 Addenda reconciled to 1986 Edition.
Equipment
- Drains, Drywell Sump (Sys 77)
Pipe and Fittings Valves Cooling Coils Newly purchased materials are being purchased to ASME Section III, Class 3 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
The replacement cooling coils are being purchased to the requirements of ASME Section VIII.
Same as above.
The replacement cooling coils are being purchased to ASME Section VIII.
Emergency Equipment Cooling Water (Sys 67)
Pipe and Fittings Valves Newly purchased materials are being purchased to ASME Section III, Class 3 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
Same as above.
Reactor Water Recirculation (Sys 68)
Pipe and Fittings Valves Flow Element Newly purchased materials are being purchased to ASME Section III, Class 1 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
New materials being utilized from TVAs existing inventory were typically purchased in the 1980s and were purchased to varying ASME Code Editions depending on the year of purchase.
Same as above.
Existing large MOVs are being refurbished using materials purchased to ASME Section III, Class 1 (equivalent), 1995 Edition w/
Summer 1996 Addenda reconciled to 1986 Edition.
E-2 PLANT SYSTEM TYPE OF COMPONENT REPLACEMENT COMPONENT PURCHASE CODE REPLACEMENT COMPONENT INSTALLATION CODE TYPICAL EXAMPLE Reactor Building Component Cooling Water (Sys70)
Pipe and Fittings Valves Drywell Cooling Coils Newly purchased materials are being purchased to ASME Section III, Class 2 & 3 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
The replacement cooling coils are being purchased to the requirements of ASME Section VIII.
Same as above.
The replaced piping and fittings are all new materials being purchased to ASME Section III, Class 2 & 3 (equivalent), 1995 Edition w/
Summer 1996 Addenda reconciled to 1986 Edition.
Residual Heat Removal (Sys 74)
Pipe and Fittings Valves Newly purchased materials are being purchased to ASME Section III, Class 1 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
New materials being utilized from TVAs existing inventory were typically purchased in the 1980s and were purchased to varying ASME Code Editions depending on the year of purchase.
Same as above.
A single 20 90° Elbow is being replaced with materials purchased to ASME Section III, Class 1 (equivalent), 1995 Edition w/
Summer 1996 Addenda reconciled to 1986 Edition.
Other piping utilized for the RHR system is inventory from TVA inventory.
Residual Heat Removal Service Water (Sys 23)
Pipe and Fittings Valves Newly purchased materials are being purchased to ASME Section III, Class 3 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
Same as above.
Reactor Water Cleanup (Sys 69)
Pipe and Fittings Valves Penetrations Newly purchased materials are being purchased to ASME Section III, Class 1 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
New materials being utilized from TVAs existing inventory were typically purchased in the 1980s and were purchased to varying ASME Code Editions depending on the year of purchase.
Same as above.
The penetration assembly is being taken from TVA inventory which was purchased to ASME Section III, 1980 Edition thru 82 Addenda.
E-3 PLANT SYSTEM TYPE OF COMPONENT REPLACEMENT COMPONENT PURCHASE CODE REPLACEMENT COMPONENT INSTALLATION CODE TYPICAL EXAMPLE RCIC (Sys 71)
HPCI (Sys 73)
Valves Newly purchased materials are being purchased to ASME Section III, Class 1 and 2 (equivalent), 1995 Edition w/ Summer 1996 Addenda reconciled to 1986 Edition.
Same as above.
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