ML15224A097
| ML15224A097 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 03/09/1989 |
| From: | Hood D Office of Nuclear Reactor Regulation |
| To: | Tucker H DUKE POWER CO. |
| References | |
| ITB-79-27, NUDOCS 8903220411 | |
| Download: ML15224A097 (4) | |
Text
UNITED STATES NUCLEAR REGULATORY COMMISSION WASHINGTON, D. C. 20555 March 9, 1989 Docket Nos.:
50-269, 50-270 and 50-287 Mr. H. B. Tucker, Vice President Nuclear Production Department Duke Power Company 422 South Church Street Charlotte, North Carolina 28242
Dear Mr. Tucker:
SUBJECT:
AUDIT ON RESOLUTION OF BULLETIN 79 OCONEE NUCLEAR STATION, UNITS 1, 2, AND 3 Orn November 30, 1979, the NRC issued Bulletin 79-27, "Loss of Non-Class 1E Instrumentation and Control Power System Bus During Operation." The bulletin was issued after the November 10, 1979 event at Oconee Unit 3 in which a loss of power to a non-class 1E power panel feeding the Integrated Control System (ICS) and Non-Nuclear Instrumentation (NNI)
System resulted in control system malfunctions and significant loss of information to the control room operator.
The bulletin requested (1) certain reviews, including the review of class 1E and non-class 1E buses supplying power to safety and non-safety related instrumentation and control systems that affect achievement of cold shutdown and (2) preparation of emergency procedures for cold shutdown upon loss of each bus. As noted in Supplement 1 to NUREG-1231, "Safety Evaluation Report Related to Babcock & Wilcox Owners Group Plant Reassessment Program," dated March 1988, the NRC staff has determined that response to the bulletin will be evaluated and audited on a plant-specific basis. This audit will be performance-oriented and will involve discussions with reactor operators as well as I&E station staff.
To prepare for the audit, we need copies of the following documents:
(1) Single line diagram of the plant electrical distribution from the off-site power sources down to AC and DC instrumentation and control panels.
(2) Load lists for all AC and DC switchgear and I & C distribution panels.
(3) System-by-system list of equipment and instrumentation versus the immediate power source to each component (switchgear, motor control center, I & C distribution panel, etc.). Supply this list only if it already exists.
8903220411 890309 PDR ADOCK 05000269 Q_
Mr. H. March 9, 1989 (4) Emergency Operating Procedure(s) (to include the reactor trip procedure and loss of ICS/NNI power).
(5) Shutdown and cooldown procedures.
(6) Annunciator response procedures.
(7) Any additional information you believe will assist the audit.
We request that two copies of the above documents be sent to the NRC Document Control Desk, and that one copy be sent directly to our contractor, EG&G Idaho, Attention Mr. Alan Udy, at the address below. Assuming we have received the information no later than April 14, 1989, the audit will be conducted May 8 through May 12, 1989 at the Oconee site in Seneca, South Carolina. At your request, part or all of the documents you provide will be returned to you upon completion of the audit.
The reporting and/or recordkeeping requirements contained in this letter affect fewer thain ten respondents; therefore, OMB cleardnce is not required under P.L.96-511.
Should you have questions or require a schedule change, contact me at (301) 492-1442.
Sincerely, Darl S. Hood, Acting Project Manager Project Directorate 11-3 Division of Reactor Projects -
I/II Office of Nuclear Reactor Regulation cc:
See next page EG&G Idaho Bomardier Bldg.
1520 Sawtelle Avenue Idaho Falls, Idaho 83415-2409 ATTN: Mr. Alan Udy
Mr. H. B4 Tucker March 9, 1989 (4) Emergency Operating Procedure(s) (to include the reactor trip procedure and loss of ICS/NNI power).
(5) Shutdown and cooldown procedures.
(6) Annunciator response procedures.
(7) Any additional information you believe will assist the audit.
We request that two copies of the above documents be sent to the NRC Document Control Desk, and that one copy be sent directly to our contractor, EG&G Idaho, Attention Mr. Alan Udy, at the address below. Assuming we have received the information no later than April 14, 1989, the audit will be conducted May 8 through May 12, 1989 at the Oconee site in Seneca, South Carolina.. At your request, part or all of the documents you provide will be returned to you upon completion of the audit.
The reporting and/or recordkeeping requirements contained in this letter affect fewer than ten respondents; therefore, OMB clearance is not required under P.L.96-511.
Should you have questions or require a schedule change, contact me at (301) 492-1442.
Sincerely, Darl S. Hood, Acting Project Manager Project Directorate 11-3 Divis6h of Reactor Projects - I/II Office of Nuclear Reactor Regulation cc:
See next page EG&G Idaho Bomardier Bldg.
1520 Sawtelle Avenue Idaho Falls, Idaho 83415-2409 ATTN:
Mr. Alan Udy DISTRIBUTION:
Docket File H. Pastis 14-H-25
-NRC PDR F. Rosa 8-D-20 Local PDR OGC (For inform. Only) 15-B-18 PDII-3 Reading E. Jordan MNBB-3302 S. Varga 14-E-4 B. Grimes 9-A-2 G. Lainas 14-H-3 ACRS (10)
P-315 D. Matthews 14-H-25 Ocon P nt File M. Rood 14-H-25 PDII-3 PDII-3 ICS MRood DHood:ls SN erry atthews 03/? /89 03/3 /89 03/1 /89 03/G /89
Mr. H. B. Tucker Oconee Nuclear Station Duke Power Company Units Nos. 1, 2 and 3 cc:
Mr. A. V. Carr, Esq.
Mr. Paul Guill Duke Power Company Duke Power Company P. 0. Box 33189 Post Office Box 33189 422 South Church Street 422 South Church Street Charlotte, North Carolina 28242 Charlotte, North Carolina 28242 J. Michael McGarry, III, Esq.
Mr. Alan R. Herdt, Chief Bishop, Liberman, Cook, Purcell & Reynolds Project Branch #3 1200 Seventeenth Street, N.W.
U.S. Nuclear Regulatory Commission Washington, D.C. 20036 101 Marietta Street, NW Suite 2900 Atlanta, GA 30323 Mr. Robert B. Borsum Babcock & Wilcox Nuclear Power Generation Division Suite 525 1700 Rockville Pike Rockville, Maryland 20852 Manager, LIS NUS Corporation 2536 Countryside Boulevard Clearwater, Florida 33515 Senior Resident Inspector U.S. Nuclear Regulatory Commission Route 2, Box 610 Seneca, South Carolina 29678 Regional Administrator, Region II U.S. Nuclear Regulatory Commission 101 Marietta Street, N.W., Suite 2900 Atlanta, Georgia 30323 Mr.
Heyward G. Shealy, Chief Bureau of Radiological Health South Carolina Department of Health and Environmental Control 2600 Bull Street Columbia, South Carolina 29201 Office of Intergovernmental Relations 116 West Jones Street Raleigh, North Carolina-27603 Honorable James M. Phinney County Supervisor of Oconee County
- WalhallC, South Carolina 29621