ML18051A881
| ML18051A881 | |
| Person / Time | |
|---|---|
| Site: | Palisades  |
| Issue date: | 05/09/1984 |
| From: | Crutchfield D Office of Nuclear Reactor Regulation |
| To: | Vandewalle D CONSUMERS ENERGY CO. (FORMERLY CONSUMERS POWER CO.) |
| References | |
| LSO5-84-05-013, LSO5-84-5-13, NUDOCS 8405110076 | |
| Download: ML18051A881 (4) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, 0. C. 20555 Docket No.
50-255 LS05-84-05-013 Mr. David J. VandeWalle Nuclear Li cens--ing Administrator Consumers Power Company 1945 W. Parnall Road Jackson, Michigan 49201
Dear Mr. VandeWalle:
May 9, 1984
SUBJECT:
ENVIRONMENTAL QUALIFICATION OF EQUIPMENT IMPORTANT TO SAFETY, REQUEST FOR ADDITIONAL INFORMATION - PALISADES PLANT 0 o c...l<'.e+--
The staff has completed its review of the environmental qualification of electrical equipment important.to safety for the Palisades Plant.
The review identified the need to docket all outstandirig justifications for continued operation (JCO's) and.the additional* information listed below.
In *order to complete the Safety Evaluation Report on enviromental qualification for the Palisades Plant, the following information is required by June 15, 1984:
- 1.
Submit all applicable JCO's that are currently being.relied upon and certify the following for each JCO associated with equipment that is assumed to fail:
No significant degradation of any safety function or misleading information to the operator as a result of failure of equipment under the accident environment resulting from a design basis event will occur.
- 2.
The licensee should certify that in performing its review of the methodology to identify equipment within the scope of 10 CFR 50.49(b)(2) that the.following steps have been addressed:
- a.
A list was generated of safety-related electric equipment as defined in paragraph (b)(l) of 10 CFR 50.49 required to remain functional during or following design-basis Loss~of-Coolant Accident (LOCA) or High Energy Line Break (HELB) Accidents.
The LOCA/HELB accidents are the only design-basis accidents which result in significantly adverse environments to electrical equipment which* is required for safe shutdown or accident mitigation. The list was based on reviews of the Fin~l Safety Analysis Report (FSAR), Technical Specifications, Emergency Operating Procedures, Piping and Instrumentation Diagrams {P&IDs), and electrical distribution diagrams;
Mr. David J. VandeWalle
- 2 May 9, 1984
- b.
The elementary wiring diagrams of the safety-related electrical equipment identified in Step a were reviewed to identify any auxiliary devices electrically connected directly into the control or power circuitry of the safety-related equipment (e.g., -automatic trips) whose failure due to postulated enviromental conditions could prevent required operation of the safety-related equipment;
- c.
The operation of the safety-related systems and equipment were reviewed to identify any directly mechanically connected auxiliary systems with electrical components which are necessary for the required operation of the safety-related equipment (e.g., cooling water or lubricating systems).
This involved the review of P&IDs, component technical manuals, and/or systems descriptions in the FSAR; and
- d.
Nonsafety-related electrical circuits indirectly associated with the electrical equipment identified in Step a by common power supply or physical proximity were considered by a review of the elect~ical design including the use 6f applicable industry standards (e.g., IEEE, NEMA, ANSI, UL, and NEC) and the use of properly coordina_ted protective relays, circuit breakers, and fuses for etectrical fault protection.
- 3.
Provide certification that all design basis events which could potentially result in a harsh environment,. including flooding outside *containment, were addressed in identifying safety-related**
electrical equipment within the scope of 10 CFR 50.49(b)(l).
This request for information was approved by OMB under clearance number 3150-0065.
Conments on burden and duplication may be directed to the Office of Management and Budget, Reports and Management, Room 3208, New Executive Office Building~ Washington, D. C.
I W~v1f'J~
Dennis M. Crutchfield, Chief
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Operating Reactors Branch #5 J
Division of Licensing cc: See next page
'~
Mr. David May 9, 1984
- b.
The elementary wiring diagrams of the safety-*related electrical equipment identified.in Step 1 were reviewed to identify any auxiliary devices electrically connected directly into the control or power circuitry of the*safety-related eq4ipment (e.g., automatic trips) whose failure due to postulated enviromental conditions*could prevent required operation of the safety-related equipment;
- c.
The operation of the safety-related systems and equi.pment were reviewed to identify any directly mechanicalJy connected auxiliary systems with el~ctrical components which are necessary for the required operation of the safety-related equipment (e.g., cooling water or lubricating systems).
This invdlved the review of P&IDs, component technical manuals,. and/or systems descriptions in the FSAR; and
- *. d.
Nonsafety-related electrical circuits indirectly associated
- with the electrical equipmen~ identified in Step 1 by common power supply or physical: proximity were considered*
by a review of the electrical design i.nclucjing the use of applicable.industry standards (e.g.,, IEEE, NEMA, ANSI, UL, and NEC)* and the use of properly coordinated protective *.
relays, circuit breakers, and fuses fo.r*electrical fault protec~ion *.'
- ~..
- 3~
Provide certification that all design basis events which could potentially result in a *harsh environ*ment; including flooding outside containment, were addressed in identifying safety-related electrical equipment within the scope of 10 CFR 50.49(b)(l).
This request for information was approved by OMB under clearance number 3150-0065.
Comments on burden and duplication may be directed to the.
Office of.Management and Budget, Reports* and Management, Room 3208, New Executive Office Building,- Washington, D. C.
Orig i na 1 signed,by Thomas..Wa,mbach for Dennis M. Crutchfield, Chief'*
Operating Reactors Branch #5 Division of Licensing
- CC: See next page Docket File Loca 1.PDR
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Mr. David J. VandeWalle cc M. I. Miller, Esquire Isham, Lincoln &.Beale Suite 4200 One First Nati.ona 1 Plaza -
Chicago, Illinois 60670 Mr. Paul A. Perry, Secretary Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 Judd L. Bacon, Esquire Consumers Power Company 212 West Michigan Avenue Jackson, Michigan 49201 James G. Keppler, Regional Administrator Nuclear Regulatory Commission, Region III 799.Roosevelt Road Glen Ellyn, Illinois 60137 Township Supervisor
- Covert Township Route 1, Box 10 Van Buren.County, Michigan 49043 O.ffice of the Governor Room 1 - Capitol Building Lansing, Michigan 48913 Palisades Plant ATTN:
Mr. Robert Montross Plant Manager Covert, Michigan 49043 U.S. Environmental Protection Agency Federal Activities Branch Region V Office ATTN:
Regional Radiation Representative 230 South Dearborn Street Chicago, Illinois 60604 Resident Inspector c/o U.S. NRC Palisades Plant Route 2, P. 0. Box 155 Covert, Michigan 49043 Lee E. Jager, P.E., Chief Environmental and Occupational Health Services Administration Michigan Department of Public Health 3500 N. Logan Street Post Office Box 30035 Lansirig, Michigan 48909