ML20113G850
| ML20113G850 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 04/30/1992 |
| From: | CENTERIOR ENERGY |
| To: | |
| Shared Package | |
| ML20113G846 | List: |
| References | |
| NUDOCS 9205130003 | |
| Download: ML20113G850 (2) | |
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Docket Numbar 50-346 License Number NPF-3 Serial Number 2022 j ef-Attachment 7
Page 6 4
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- DISIGN F?tTURES a
C jOtSION::E5!URE AND Tiv t*ATURI tl 5.2.2 The react:r c:r.tatnment :utleing is castgnec ano snail te main siten f:r a maxte:um internal pressure of ao estg ans a tem:erature of 254'F.
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atACTOR CORE FUtl ASSEMBLIES l
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- 5.3.1 The reactor core snail contain 177 fuel assmoltes. Each assmob shall
- censist of a metrix of Zircaloy clad fuel ross witn an initial c
- ecesisten of
- na%ral or slightly enrienen urantum et:xico (U02) as fuel material, with a
- maximum enriement cf 3.5 weignt cercent U-235..1=ttee suestttutt
- ns of stain.
' lus steel filler roes fer fuel ecos, in ace:rcance witn a::roveo a::licattens
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- Of fuel roc configurations, may De useo. Fue) assemolies snall be limited to
, tnese fuel designs tnat nave oeen analyzen witn a:clict:le NRC staff a::reven I,
c :es ano cetn:cs ano snown ey tests Or analyses t: ccm:ly witn all ful safety
. Castgn cases. Eacn fuel r c snali nave a namnal acttve fuel lengtn f 7 l A inenes.and snail c:ntain a maximum total weignt of 2500 gram; uranium,
_{d'Ni20LR003 _
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', 5.
The react:r c:re snall contain 53 safety and regulating and 6 antal power r
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snacing (APSR) control recs. The saf ety anc regulating control recs snall
- c ntain a nominal 134 intnet of abscrear matarial. The n
- r:tnal values of
- asser:gr material shall be 60 cercent silver.15.cercent inctw. ana 5 :ercenc
- caer.tum. All c ntt
- 1 re:s snail to clad with stainless steel tuning. ~he APSRs l
- snall-::ntain a neennal 63 inenes of a: sorter eatartal a netr icwer enes. The cr:er material fer tne APSRs snall be 100 :ercent In::nel-600.
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'l 5.4 :9CTOR COOLANT SYST!M
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feh&C it!5IGN pots 5 Uni ANO i M ERATUtt N
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- 5.4.1 - The react:r c:clant system ts :esigne: ans snall te matntainec:
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In act:rcance with tne cece recuirments scec1fied in Sectt:. 5.2 of t..e F5AR. tta allcwance f:r nemal :egranatt:n :ursuant t:
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!I applica:la Suryeillance Requu.ments.
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For a cressure of 2500 :sig. and i,.
For a temerature of $50'F. excact 1:r tne pressurizar an
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pressurt:er surge itne wnten is 670*F.
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54 knenement 'tc. II.I3.123.I30.I15 $
9205130003 920430 PDR ADOCK 05000346 P
Docket Number 50-346 License Number NPF-3 Serial Number 2022
' Attachment Page 7 Current Vording 5.3.2 The reactor core shall contain 53 safety and regulating and 8 axial power shaping (APSR) control rods. The safety and regulating control rods shall contain a nominal 134 inches of absorber material.
The nominal values of absorber material shall be 80 percent silver, 15 percent indium and 5 percent cadmium.
All control rods shall be clad with stainless steel subing. The APSRs shall contain a nominal 63 inches of absorber material at their lover ends. The absorber material fot the APSRs shall be 100 percent Inconel-600.
Proposed Vording The reactor core shall contain 53 safety and regulating control rod assemblies (which may be either standard or extended life control rod assemblies) and 8 axial power shaping roc (APSR) assemblies.
Standard control rods shall contain a nominal 134 inches of absorber material.
The extended life control rods shall contain a nominal 139 inches of absorber material.
The nominal values of absorber material for the safety and regulating control rods shall be 80 percent silver, 15 percent indium, and 5 percent cadmium.
Standard control rods and APSRs shall be clad with stainless steel tubing. The extended life control rods shall be clad with Inconel. The APSRs shall contain e nominal 63 inches of absorber material at their lower ends. The absorber material for the APSRs shall be 100 percent Inconel.
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