ML18045A787
| ML18045A787 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 09/16/1980 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| NUDOCS 8010150631 | |
| Download: ML18045A787 (4) | |
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luLAi0RY DOCKET fll1 &OPfL
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Docket No *. 50-255
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Mr. David P *. Hoffman Nuc*lear L 1cens1ng Adm1ni strator.*.
Consumers Power Companyi:
212 West Michigan Avenu'¢
- Jackson, Michigan 49201
Dear-Mr. Hoffman:
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RTedesco*.
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JOlshinski
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ORB #5. Rea~i ng ot &E ( 3).
DEisenhut HSmith
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Project Mgr.
- TNoVak ACRS (16)
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~Kragh'_(ll ~ SE~--~ilei) ii RE:
REQUEST FOR ADr;>ITIONAL INFORMATION ON SEP TOPICS VI-7.B, VI-7.C, VI-10, VII-3, VIIIi2 AND VIII~3-(PALISAOES PLANT)
. to Recirculation Moc:te; VI-7.C, ~ccs Si_ngle Failur~ Criteria;.vI-19.A-, Testing of Reactor Trip System ~nd ESF; Vl-10.B, 'Shared Engineered Safety Features; VII-3, Systems Required'i for Safe Shutdown; Vlll-2; Onsite Emergency Power Systems - Diesel Generator; *viII-3.A, Sta~ion Battery Test Requjrements and Vlll-3.B, DC Pawer Syst~m Bus Voltage Monitoring and Annuniciation.
We have found *that*addit1ona1 information described in the enclosure to this letter 1 s needeq.
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~Je request ~our response wfth1 n_ 45 days of your receipt of this letter.
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Enclosure:
- L Reques~ for Additional Information on SEP Topics.
cc w/enC"losure(
See next page
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 Docket No. 50-255 Mr. David P. Hoffman Nuclear Licensing Administrator Consumers Power Coq>any 212 West Michigan Avenue Jackson, Michigan 49201
Dear Mr. Hoffman:
- September 16 1 - 1980 ---
RE:
REQUEST FOR ADDITIONAL INFORMATION ON SEP TOPICS Vl-7.B, Vl-7.C, Vl-10, Vll-3, Vlll-2 AND Vlll-3 (PALISADES PLANT)
We are continuing our review of SEP Topics Vl-7.B, ESF Switchover from Injection to Recirculation Mode; Vl-7.C, ECCS Single Failure Criteria; Vl7lO.A, Testing of Reactor Trip System and ESF; Vl-10.B, Shared Engineered Safety Features; Vll-3, Systems Required for Safe Shutdown; Vlll-2, Onsite Emergency Power Systems - Diesel Generat.or; Vlll-3.A, -Station Battery Test Requirements and Vlll-3.B, DC Power System Bus Volt~ge Monitoring and Annuniciation.
We have found that additional information described in the enclosure to this-letter 1s needed.
We request your response w1thin 45 days of your receipt of ~his letter.
Enclosure:
Request for Additional Information on SEP Topics cc w/enclosure:
See next page
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Mr. David P. Hoffman cc- -w/enclosure:- ---------
M. I. Miller, Esquire Isha~, Lincoln & Beale Suite 4200 One First National Plaza Chicago, Illinois 60670 Mr. Paul A. Perry, Secretary Consu1:1ers Power Company 212 West Michigan Avenue Jack~on, Michigan 49201
- J~dd L. Bacon, Esquire
- consurr.ers Po\\'/er Corrpany 212 West Michigan Avenue Jackson, Michigan 49201 Myron M. Cherry, Esquire*
Suite 4501 One IBM Plaza Chicago, Illinois 60611
- Ms. Mary P. Sinclair Great Lakes Energy Alliance 5711 Summerset Ori ve
'ROOQ 1 - Capitol Building Lansing, Michigan 48913 Di rector, Technical Assessment Division Office of Radiation Programs (AW-459)
U. s. Environmental Protection Agency Crystal Mall #2 Arlington, Virginia 20460 September 16, 1980
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- u. s. Environmental Protection Agency Federal Activities Branch Region V Office ATTN:
EIS COORDINATOR 230 South Dearborn Street Chicago, Illinois 60604 Charles Bechhoefer, Esq., Chairman Atomic Safety and Licensing Board Panel
- u. S. Nuclear Regulatory Commission Washington, D. c.
20555 Dr. George c. Anderson.
Department of Oceanography University of Washington Seattle, Washington 98195 Dr. M. *stanley Livingston 1005 Calle Largo Santa Fe, New Mexico 87501 Resident Inspector*
c/o U. S. NRC P. O. Box 87 South Haven, Michigan 49090 Palisades Plant ATTN:
Mr. J. G. Lewis Plant Manager Covert, Michigan 49043 William J. Scanlon, Esquire 2034 Pauline Boulevard Ann Arbor, Michigan 48103 Mr. Richard E. Schaffstall KMC, Incorporated 1747 Pennsylvania Avenue, N. W.
Washington, D. C.
20006
REQUEST FOR ADDITIONAL INFORMATION ON SEP TOPICS
___________________________ VJ'.".7.B,_ VI-7 *. C,.. VJ-10,-VIL-.3,_VJ.I.I_.,_2 _____ _
AND VIII-3 As a result of our preliminary review of the subject topics, we will need the information described below in order to determine:
(1) how many in-verters may be placed on a single power supply during operation or while shutdown, and (2) the potential consequences of losing such power supplies.
- 1.
Quantify the number of instrument inverters in your plant and for each inverter:
a) identify the inverter and its power supplies; and b) describe the switching features that are provided to switch inverter power supplies and inverter loads (including synchronization circuits).
- 2.
Provide the requirements for:
a) testing the transfer path's described in your responses to 1 above, and b) limiting the number of redundant load groups that may be placed on any maintenance power source during each operating condition.*
- 3.
Describe the cons~quence of one or more load groups on a single de source losing power (e~g. automatic initiation of ECCS, automatic
- initiation of transfer from ECCS injection made to recirculation mode, loss of indication in the control room, loss of annunciators, loss of plant conmunications, loss. of emergency telephones).