ML20046D272
| ML20046D272 | |
| Person / Time | |
|---|---|
| Site: | Byron, Braidwood  |
| Issue date: | 08/12/1993 |
| From: | Martin T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Delgeorge L COMMONWEALTH EDISON CO. |
| Shared Package | |
| ML20046D273 | List: |
| References | |
| NUDOCS 9308170149 | |
| Download: ML20046D272 (3) | |
See also: IR 05000454/1993006
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UNITED STATES
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NUCLEAR REGULATOnY COMMISSION
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GL EN ELLYN. ILLINO45 60137
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AUG 121993
Docket Nos. 50-454, 50-455,
50-456, and 50-457
Commonwealth Edison Company
ATTN: Mr. L. O. De1 George
Vice President
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Nuclear Oversight and
Regulatory Services
Executive Towers West III
1400 Opus Place, Suite 300
Downers Grove, IL 60515
Dear Mr. DelGeorge:
This refers to the special electrical distribution system functional
inspection-(EDSFI) conducted by Mr. David S. Butler and others of this office
on June 1 through July 16, 1993. The inspection evaluated activities at the
Byron Station, Units 1 and 2 and at the Braidwood Station, Units 1 and 2,
authorized by NRC Operating Licenses No. NPF-37, No. NPF-66, No. NPF-72, and
No. NPF-77.
We discussed our inspection findings with Messrs. K. Graesser and
S. Berg and other members of your staff at the exit interview on July 16,
1993.
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Areas examined during the inspection are identified in the report.
The team
assessed the design, implementation, and engineering technical support
relative to the electrical distribution system (EDS).
The purpose of the
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inspection was to determine whether activities authorized by the above
licenses were conducted safely and in accordance with NRC requirements.
The
inspection consisted of a selective review of design calculations, relevant
procedures, representative records, installed equipment, and interviews with
engineering and technical support staff. This inspection was a comprehensive
four week onsite effort with two weeks spent at each station.
The team concluded that Byron's and Braidwood's EDS were designed, operated,
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and maintained in an effective manner and that engineering and technical
support was good. The EDS and related support equipment materiel condition
was also good. Although overall experience level of the technical staff was
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not a concern, several relatively inexperienced system engineers were assigned
to some of the more important systems. The team identified.several
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weaknesses. Most significant was improperly sized fuses installed in Byron's
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IB diesel driven auxiliary feedwater pump control panel.
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9309170149 930812
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ADOCK 05000454
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Commonwealth Edison Company
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AUG 121993
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No violations of NRC requirements were identified during the course of this
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inspection.
In accordance with 10 CFR 2.790 of the Commission's regulations, a copy of
this letter and the enclosed inspection report will be placed in the NRC
Public Document Room.
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We will gladly discuss any questions you have concerning this inspection.
Sincerely,
,
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T. O. Martin, Acting Director
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Division of Reactor Safety
Enclosures:
1.
Inspection Reports
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No. 50-454/93006(DRS);
No. 50-455/93006(DRS);
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No. 50-456/93009(DRS); and
No. 50-457/93009(DRS)
2.
Appendix A - Personnel
Contacted
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3.
Appendix B - Request
for Information
See Attached Distribution
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Commonwealth Edison Company
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AUG 121993
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Distribution
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cc w/ enclosures:
D. Farrar, Nuclear Regulatory
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Services Manager
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S. Berg, Site Vice President,
Braidwood
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K. Graesser, Site Vice President,
Byron
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K. Kofron, Station Manager,
.Braidwood
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G. Schwartz, Station Manager,
Byron
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A. Haeger, Regulatory Assurance
Supervisor, Braidwood
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D. Brindle, Regulatory Assurance
Supervisor, Byron
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OC/LFDCB
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Resident Inspectors-Braidwood,
Byron, and Zion
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R. Assa, LPM, Braidwood
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J. Hickman, LPM, Byron
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D. W. Cassel Jr., Esq.
Richard Hubbard
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J. W. McCaffrey, Chief, Public
Utilities Division
.,
Robert Newman, Office of Public
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Counsel, State' of Illinois Center
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State Liaison'0fficer
Chairman, Illinois Commerce Commission
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R. M. Thompson, Administrator, Wisconsin
Division of Emergency Government
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W. Hodges, RI
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J. Durr, RI
A. Gibson, RII
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C. Julian, RII
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S. Collins, RIV
T. Stetka, RIV
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K. Perkins, RV
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L. Miller, RV
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E. Imbro, NRR
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