ML20028E936
| ML20028E936 | |
| Person / Time | |
|---|---|
| Site: | Clinch River |
| Issue date: | 01/27/1983 |
| From: | Longenecker J ENERGY, DEPT. OF, CLINCH RIVER BREEDER REACTOR PLANT |
| To: | Grace J Office of Nuclear Reactor Regulation |
| References | |
| HQ:S:83:201, NUDOCS 8301280281 | |
| Download: ML20028E936 (3) | |
Text
1 Department of Energy Washington, D.C. 20545 Docket No. 50-537 HQ:S:83:201 JAN 2 71983 Dr. J. Nelson Grace, Director CRBR Program Office Office of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission Washington, D.C. 20555
Dear Dr. Grace:
ADDITIONAL INFORMATION: PRELIMINARY SAFETY ANALYSIS REPORT (PSAR)
SECTIONS 5.3 AND 6.0 - CLINCH RIVER BREEDER REACTOR PLANY e Enclosed are amended PSAR pages 5.3-8 and 6.1-1 which provide additional information on stainless steel and insulation properties of engineered safety features and on welding qualification in areas of limited accessibility. Thesc pages will be incorporated into the next amendment to the PSAR.
Questions regarding the enclosures may be addressed to Mr. D. Robinson (FTS 626-6098) of the Oak Ridge Project Office staff.
Sincerely, C 1.4 Jo n R. Longene er Acting Director, Office of Breeder Demonstration Projects Office of Nuclear Energy 2 Enclosures cc: Service List Standard Distribution Licensing Distribution 8301200281 830127 PDR ADOCK 05000
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- CHAPTER 6.0 ENGINEERED SAFETY FEATURES 6.1 GENERAL ", :,7 -
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The Engineered Safety Features are the provisions in the plant which are . ., g. .
designed to prevent the occurrence or to mitigate the ef fects of serious .:
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accidents. For this plant,cthe Engineered Safety Features are IIsted in Table i$.
6.1-1. Descriptions of the Containment Systems and the Habitability Systems 'JQ. 7,V. -
are provided in Sections 6.2'and 6.3 of this chapter.- Descriptions of the .y.,p:ffjf
.- Celi Liner System and the Catch Pan / Fire Suppression Deck System are provided- , gLJ
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In Sections 6.4 and 6.5. . Other Engineered Safety Features are described in 4.,eN
..f7l their particular sections as. identified in Table 6.1-1. u q.m;g;h pg
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All Engineered Safety Features shalI apply, as a minimum, alI pertinent ASME ~.fc.f;'y +
-' ,t- .' Code requirements for materials properties. Any application of cold worked ,;,
,. stainless steal shall require the material yield stress to be less then .90,000 'f *
. L,. psi. The fracture toughness of ferritic material shall meet code . . . . .
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1.For Engineered Safety Features requiring thermal Insulation, the insulat,lon ,
I requirements are discussed in the PSAR sections identified in Table 6.1-1.
~ Controls placed on concentrations of leachable impurities in non-metallic thermal .insu!ation used on components of Engineered Safety Features shalI be in accordance with requirements of Regulatory Guide 1.36 "Non-metallic Therma!
Insulation for Austenitic Stainless Steel". -
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Protective coatings used on Engineered Saf ety Features must be quallfled for ,
the particular application to assure that they do not degrade the operation of l
the ESF by delninating, flaking or peeling. The requirements of Regulatory Guide 1.54 apply as noted in$ection 1.1, Table 1.
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Simile [ly, controls shall be placed on ESF component and system cleaning' tot assure protection against damage or deterioration by cente! =.a.^. Regulatory Guide 1.37 shall apply as noted ingection 1.1, Table 1.
PSAR Codu*,48t}n i .. . .
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6.1-1 Amend. 75 Jan. 1983
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5.3.1.4.4 Welding _.
Welding Filler Materials ff ,1,1., ,
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The weld filler materials to be used for the primary heat tranhort ,- 4 system components and primary piping fabrication shall conform to the require- -
ments of the RDT Standards for weld fill materials identified in Table 5.3-9.
The supplier may substitute other RDT Standard filler material types ,b Z ' f-
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for those specified in Table 5.3-9 after review and approval by the purchaser prior to procurement. If the supplier elects to use other approved filler .~
i materials, the supplier's request for approval shall provide technical justi-
. fication for the proposed substitution. Alternate materials shall conform to. -
- applicable RDT Standard requirements. .,'
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Delta Ferrite Control . , , , _ ,
The delta ferrite requirements and determination for filler classifi-cations E308L, E308, ER308L, and ER308 shall conform to the requirements of
$cction III of the 1974 ASME Boiler and Pressure Vessel Code. The delta ferrite range of 5 to 9 percent shall be used since these limits are consis-tent with the Code and RDT Standards.
Welds on Associated Equipment ,
Weld filler materials for associated equipment welds shall conform with ASME Code,Section II, Part C, Welding flods, Electrodes and Filler l
Materials.
POT tcW-wo-T 1[elding Qualifications
- Weldina cualifications shall be in accordance with the Co as supple-Nov.1975 elm e RDT E15-2NB-T, Oct.1975,Aparagraph l~ mented by R)T F6.,5,fsions under which the supplier's previously qualified ANB-4331, dgr'f ov not ba ra 3 g gg.p .gp procedures welder, welding o]erators, and welding mehinac noas h7 qualified in accordance with RDT F6-5, Nov.1975.yFDe- ph /Wa - ff 2 f GulfffA 04 r*fww*O d Adfsch/o7 Gy, f. p 6 pg rW
- Production Welding ,
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l Production welding shall be in accordance with the Code as supple- -
l l mented by RDT EIS.2NihT.0ct.1975, with modifications set forth in tne equip-l27 ment specifications for each major heat transport system component.. _
Weld Repair Purchaser approval is required to make weld repairs to correct defects that recur:
- a. Af ter the first cycle of weld repair of defects in .the fusion _
zone and adjacent base metal where. welds are not heat treated following repair. .
that pre- ~ j' paration of weld qualification mockup 5must include simulation of any environmental or accessibility restrictions that might be encountered in making the actual weld. j 5.3-8
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