ML20126E280
| ML20126E280 | |
| Person / Time | |
|---|---|
| Site: | Big Rock Point File:Consumers Energy icon.png |
| Issue date: | 02/19/1965 |
| From: | Doan R US ATOMIC ENERGY COMMISSION (AEC) |
| To: | Wall H CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8101160300 | |
| Download: ML20126E280 (2) | |
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FEB 1919p Docket No. 50-155 l
Consumers Pcmer Compan:
194 Parnell Boed Jackson, Michist.n Attenticn: Mr. E. R. Well Vice President Gentlemen:
We have reviewed Consumers' nquest for a change te its Technier.1-Specificatices nieting to low source level startups of the Big Roch In order to complete Point Nucler.r Plant, dated January.1?, 1965 our evaluation of your request, it will be accessary for you te previde us with an accident snelysie M1 sting to the proposed opert-this annlysis should show whether, in the event of seeidentel
- tions, estinuous reectivity insertion during such icv ' source level startupc, fuel integrity would be presened, and should' emsider any perticult:r
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consequences associcted with this postulated accident thet would te Included with this intemetjen peculiar to head-off operatims.
should be an indicaticta of the rod withdrevt.1 sequence to be used e
during the low source level stertups, the minimum time interval le-tween incremental rod withdrewr.ls and the methc4 propeced te obteic In addition, please previde an outline of the countin6 statistics.
procedures thet will be followed end the calculatienz te te made during bend-on startup opentions tc correlate the het.d-on startups with pnvicusly ecoducted beed-off startups, and the criteric that vill be applied to detemine if the corniation would te acceptatic.
In addition, we believe that safety would be enhanced 11 the folleving conditions, which would supplement and/or replace those proposed in your letter for Section T.3 2(d) of the hehnical Specificatiore, were imposed on the low source level startup ccraditions:
The startup operations should be eceducted in accordeace 1.
with written procedures approved by the Consumers Plant Operaticas Sefety Commiittee.
T O %O300
FEB 191965 Consumerc Pu.er Company.
2.
The reactor loading (except for the removal of in-ecre nuclear instrumentation) and reactivity as affected b; te:apereture and zenon pcisoning sheu14 be the sere es these obtained during the critical testing assceinted with the con neonstitution folic *ing the Septerner 18, 1%4 shutdovn. In-core nuclear instrumentation should te utilized in such e manner that the critical multiplies-tien and critical centrol red positions can be securatel;-
predicted.
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A special startup in-con detecter should be used for all lov source level startupt to provide e standard meant cf ecrnleting beed-off and hesd-on att.rtup count rete variation with red withdrevel and time.
4 The contrcl rod withdrevel pattern and ste.rtup sequences shculd be limited to that pattern and those sequencer developed during the critical testing associated with cere reconstitution as descrited in Item 2 abcVe.
5 A qualified nector engineer should be in the contrel room during c11 lov source level startup operationc overseeir4 stertup operctions.
We vculd be pleased tc n eeive your ecceents on the above suggested conditicnr.
Sinee nly yours, ortrine! Rned by L L Case (LCd
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R. L. Doen, Dineter du j
Division c.f Reacter Licensing l
R. S. Boyd I
J. Shea H. Steele
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