ML18044A628
| ML18044A628 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 02/11/1980 |
| From: | Ziemann D Office of Nuclear Reactor Regulation |
| To: | Hoffman D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| TASK-06-04, TASK-6-4, TASK-RR NUDOCS 8003130159 | |
| Download: ML18044A628 (4) | |
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REGU.LATO.RY DOCKET.ALE ~COPY\\ ___ :_.-"*'.-~~.. DISTRIBUTIOt~ ~-
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We *are cont1~~1ng "our* ~ev*i~w* of :SEP Jqp1*c; VI~4 and. have' found.~~At add1t1onal lnfonnatfon rel~ted* to the containment* *.purge. -and vent,ng.
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UNITED STATES NUCLEAR REGULATORY COMMISSION
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Mr. David P. Hoffman Nuclear Licensing Administrator Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Dea~ Mr. Hoffman:
WASHINGTON, 0. C. 20555 February 11, 1980
SUBJECT:
- SEP TOPIC VI-4, Containment Isolation System We are continuing our review of SEP Topic VI-4 and have found that add1tional information related to the containment purge and venting system for Palisades described in the enclosure to this letter is needed.
He request your response within 30 days of your receipt of this letter.
Enclosure:
Request for Addi t iona 1 Information Sincerely, 9.t~ i! ?il.~
Dennis L. Ziemanr£'~~ief Operating Reactors Branch #2 Division of Operating Reactors 8008130
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Mr. David P. Hoffman cc M. I. Miller, Esquire Isham, Lincoln & Beale Sui.te 4200.
One First National Plaza Chicago, Illinois 60670 Mr. Paul A. Perry, Secretary Consumers Power Company 212 West Michigan Avenue Jackso~, Michigan 49201 Judd L. Bacon, Esquire Consumers. Power Company 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 Drive Midland, Michigan 48640 Kalamazoo Public Library
- 315 South Rose Street
~alamazoo, Michigan 49006
. Township Supervisor Covert Township Route 1, Box 10 Van Buren County, Michigan 49043 Office of the Governor (2)
Room 1 - Capitol Building Lansing, Michigan 48913
- Director, Technical Assessment Division Office of Radiation Programs
{AW-459)
- U. S. Environmental Protection Agency Crystal Mall #2 Arlington, Virginia 20460 e*--*-
February 11, *l 980 U. s. Environmental Protection Agency Federal Activities Branch Region V -Office ATTN:
EIS tOORDINATOR 230 South Dearborn Street Chicago, Illinois 60604 Charles Bechhoefer, Esq., Chainnan Atomic Safety and Licensing Board Panel
- u. S. Nuclear Regulatory Comnission Washington, O. C.
20555 Or. George C. Anderson Departr.ient of Oceanography University of Washington Seattle, Washington 98195 Or. 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 ATIN:
Mr. J. G. Lewis Pl ant Manager Covert, Michigan 49043
SEP TOPIC Vl-4
- --- ---*- -*- REQUEST FOR ADDITIONAL INFORMATION FOR CONTAINMENT PURGE AND VENTING SYSTEM FOR PALI ~.\\DES (DOCKET NO. 50-255) e --** ---*-------***.. -*
The docketed infonnation. including the licensee's t*ransmittals dated 12/28/78.
and 3/1/79, on the containment purge and venting systems does not adequately address the following areas. Please discuss how your design confonns with each:
'*1.
- The overriding of one type of safety actuation signal should not cause.the blocking of any other type of safety actuation signal to the isolation valves. Describe, including sketches and drawings as needed, how your manual overrides affect only one safety actuation signal per override use.
- '*2.
Sufficient physical features (e.g. key lock switches) should be provided to facilitate adequate administrative controls. Describe the physical features that facilitate administrative control of your valve logic reset and override controls.
- 3.
Diverse signals should be provided to initiate. isolation of the containment ventilation system. Specifically. containment high radiation. safety injection actuation, and containment high pressure should automatically initiate containment ventilation isolation.
- 4.
The instrumentation and control systems provided to initiate Engineered Safety Features should be designed and qualified as safety-grade equipment. Discuss the qualifications of your actuation signals.
- 5.
The overriding or resetting of the-isolation actuation.signal should not cause the automatic motion of any isolation or purge valves.. Discuss. including drawings and sketches as
- needed. the valve action when valve logic is overridden or reset~
- If this specific infonnation has been provided 1n response to "Lessons Learned" or "Bulletins on Order" requests. the licensee may respond by identifying the date and title of the letter containing the infonnation.
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NOTE:
The following definitions are given for clarity of use in this issue:
Override - The signal is still present. and it is blocked in order to perfonn a function contrary to the signal.
Reset - The signal has come and gone. and the circuit i~ being cleared to return* to the nonnal condition.