ML20043G230
| ML20043G230 | |
| Person / Time | |
|---|---|
| Site: | Crystal River  |
| Issue date: | 06/13/1990 |
| From: | Silver H Office of Nuclear Reactor Regulation |
| To: | Beard P FLORIDA POWER CORP. |
| References | |
| TAC-76464, NUDOCS 9006200072 | |
| Download: ML20043G230 (3) | |
See also: IR 05000302/1987038
Text
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June 13, 1990
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Docket No. 50 302
DISTRIBUTION
SPChan 7/H/15
Docket File-
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NRC & LPDRs
PD22 Rdg File
Mr. Percy M. Beard, Jr.
SVarga 14/E/4
Senior Vice President,
Glainas 14/H/3
Nuclear Operations
HBerkow
Florida Power Corporation
DMiller
ATTN: Manager, Nuclear Operations
GWunder
Licensing
HSilver
P. O. Box 219-NA-21
Crystal River, Florida 32629
EJordan MNBB-3302
ACRS(10)
Dear Mr. Beard:
MSinkule RII
SUBJECT: CRYSTAL RIVER UNIT 3 . CONTAINMENT LINER WELD CHANNEL (TAC NO. 76464)
By letter dated December 27, 1987, you responded to our Inspection Report 87 38
by submitting the requested assessment concerning reactor building liner weld
channels. As a result of your assessment, you determined that containment
integrity would be maintained during the design basis loss of coolant accident
with the channels either vented or unvented.
We are currently reviewing your submittal and have determined that there is not
sufficient data to demonstrate that the leak chase channel system can be
qualified as an integral part of the containment liner plate. Therefore, we
request that you provide additional information listed in the enclosure within
60 days of the date of this letter.
The reporting, and/or recordkeeping requirements contained in this letter
affect fewer than 10 respondents; therefore, OMB clearance is not required
pursuant to P.L.96-511.
Sincerely,
Original signed by
Harley Silver, Project Manager
Project Directorate II-2
Division of Reactor Projects . I/II
Office of Nuclear Reactor Regulation
Enclosure:
As stated
cc w/ enclosure:
See next page
OFC
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Document Name: PINK TICKET CR3 TAC 76464
9006200072 900613
ADOCK 05000302
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Mr. Percy M. Beard, Jr.
Crystal River Unit No. 3 Nuclear
Florida Power Corporation
Generating Plant
cc:
Mr. A. H. Stephens
State Planning and Development
General Counsel
Clearinghouse
Florida Power Corporation
Office of Planning and Budget
MAC - A5D
Executive Office of the Governor
P. O. Box 14042
The Capitol Building
St. Petersburg, Florida 33733
Tallahassee, Florida 32301
Mr. P. F. McKee, Director
Chairman
Nuclear Plant Operations
Board of County Comissioners
Florida Power Corporation
Citrus County
P. O. Box 219-NA-20
110 North Apopka Avenue
Crystal River, Florida 32629
Inverness, Florida 32650
Mr. Robert B. Borsum
Mr. Rolf C. Widell, Director
Babcock & Wilcox
Nuclear Operations Site Support
Nuclear Power Generation Division
Florida Power Corporation
1700 Rockville Pike, Suite 525
P.O. Box 219-NA-21
Rockville, Maryland 20852
Crystal River, Florida 32629
-Senior Resident Inspector
Mr. Gary L. Boldt
Crystal River Unit 3
Vice President, Nuclear Production
U.S. Nuclear Regulatory Comission
Florida Power Corporation
15760 West Powerline Street
P. O. Box 219-SA-2C
Crystal River, Florida 32629
Crystal River, Florida 32629
Regional Administrator, Region II
U.S. Nuclear Regulatory Comission
101 Marietta Street'N.W., Suite 2900
Atlanta, Georgia 30323
Mr. Jacob Daniel Nash
Office of Radiation Control
Department of Pealth and
o
Rehabilitative Services
1317 Winewood Blvd.
Tallahassee, Florida 32399-0700
Administrator
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Department of Environmental Regulation
Power Plant Siting Section
State of Florida
2600 Blair Stone Road
-Tallahassee, Florida 32301
Attorney General
Department of Legal Affairs
The Capitol
Tallahassee, Florida 32304
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ENCLOSURE
REQUEST FOR ADDITIONAL INFORMATION REGARDING
CONTAINMENT LINER WELD CHANNELS
CRYSTAL RIVER UNIT 3
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1.
Provide supporting analyses and stress calculations for at least one
typical liner weld channel to show that the containment liner weld
channel system meets the following requirements:
a.
The material strength and quality of weld attaching the channel to
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the liner plate should be equal to or better than that of the
original liner joints and should meet the applicable requirements of
either ASME Boiler and Pressure Vessel Code,Section III, Division
2, Subsections CC-2000, 3000 and 4000 (Code of Concrete Reactor
Vessels and Containments,1983), or whatever comparable code that
was used in design and construction.
b.-
Since the liner weld channels now become part of the containment
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wall and are therefore considered a structural element, the strength
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of the channel box and its welds should be able to resist all load
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combinations involving the tested loads and the loads of a
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postulated accident, including seismic loads. The design of the
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liner weld channel should meet the applicable requirements of steel
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containments; i.e., either ASME Boiler and Pressure Vessel Code,
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Section III, Division 1, Subsections NE-2000, 3000 and 4000 for
Class MC Components (1983) and American Institute of Steel
Construction Specification for the Design, Fabrication and Erection
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of Structural Steel for Buildings (1978), or whatever comparable
code that was used in design and construction.
2.
Complete documentation of installation records, including leak test
procedures and results of the liner seam welds and the welds attaching
the channel to the liner, should be available on site. Please sumarize
and provide examples of available records.
If no records or only partial
records are available, provide whatever additional information/ assurance
that is available regarding procedures, materials, welds, inspection
records, etc.
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3.
The staff needs a comitment that you will perform a visual inspection of
the accessible interior and exterior surfaces of the containment
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structure and components, including a visual inspection of accessible
channel plugs,.as required by 10 CFR Part 50, Appendix J, and to fix all
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cracking and corrosion problems prior to any Type A test.
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