ML20072A047
| ML20072A047 | |
| Person / Time | |
|---|---|
| Site: | Oconee  |
| Issue date: | 08/01/1994 |
| From: | Hampton J DUKE POWER CO. |
| To: | NRC OFFICE OF INFORMATION RESOURCES MANAGEMENT (IRM) |
| References | |
| NUDOCS 9408120117 | |
| Download: ML20072A047 (7) | |
Text
ll l
i IMr hier Cenpany J W Hwrros Ou, rice Nurlear Generatim [kpartment nce Presiifent i
Pu Il<a 1139 (803)M5-3199 O!!re j
.Wn a. SC 2%T3 (TO4)3:3 S?:2IM
}
DUKE POWEft August 1, 1994
)
U. S. Nuclear Regulatory Commission Attention:
Document Control Desk Washington, DC 20555
Subject:
Oconee Nuclear Station Docket Nos. 50-269,-270,-287 Corrective Actions for October 19, 1992 Loss of Offsite Power and EDSFI Findings (Inspection Report 50-269,-270,-287/93-02)
Attached is the quarterly update of the status of the commitments resulting from the October 19th Loss of Offsite Power event.
No commitment items on the list were scheduled for completion during the last quarter.
The response to the findings in Inspection Report 50-269,-
270,-287/93-02 included a commitment to perform the switchyard isolation test using the second channel of the switchyard isolation relays.
This item was completed during the U1EOC15 refueling outage.
Finding 6A indicated that MP/0/A/2001/02 would be revised to 1
include specific guidance on check valve inspection and air pressure switch testing.
A minor modification to the system needs to be completed prior to the implementation of the testing.
Therefore, the completion date for this item has been extended to 12/31/94 from 06/01/94.
The response for Finding 6B indicated that the coolers at Keowee would be reviewed and any maintenance or testing revisions will be made as deemed necessary.
The due date has been extended from 07/01/94 to 09/01/94.
The extension is needed to incorporate the coolers into the ISI/IST program.
This is the second extension for this item.
The extensions listed above are the first for the corrective actions unless otherwise specified.
If there are any questions, please contact Steve Benesole at (803) 885-3292 or Michael Bailey (803) 885-4390.
Very Truly Yours, M
/ppf[ ph Lu^ykIb y'J. W. Hampton
\\
h8120117940801 ADOCK 05000269 G
n n,~
.e
' [d I PDR
\\
evee
Document Control Desk August 1, 1994 Page 2 xc:
L. A. Wiens, Project Manager i
ONRR P.
E. Harmon, Senior Resident Inspector Oconee Nuclear Station
]
S.
D.
Ebneter, Regional Administrator Region II t
e 6
o DUKE POWER COMPANY OCONEE NUCLEAR STATION ATTACHMENT Commitroents from October 19, 1992 Event
+
m
~
i
- i i
Comunitments fross October 19, 1992 Event Schedule 1.
Evaluation of NRC. communications Completed 2/28/94 applicable to Keowee with schedule for resolution Switchyard Equipment', Design and Testing Commitments:
2.
Switchyard battery charger testing Completed 6/93 3.
Switchyard breaker failure relay Completed prior to Oconee 2 modifications restart 4.
Switchyard synchroscope repair Completed 2/24/93, Tested 3/16/93 5.
Overhead emergency power path integrated Completed 5/93 test Keowee Auxiliary Power System Equipment, Design, and Testing Commitments:
6.
Westinghouse DB breaker modifications to Completed 7/92 provide electrical anti-pump logic (Keowee Unit 1)
Completed 11/92 (Keowee Unit 2) 7.
Westinghouse DB breaker modifications to Completed 12/92 add time delay in breaker closing circuit (allows closing with reduced DC voltage) 8.
MG-6 relay review for repair and PM Review completed program 7/93 (Keowee) 2/93 (Oconee Unit 1) 6/93 (Oconee Unit 2) 1/94 (Oconee Unit 3) 9.
MG-6 relay replacement in Keowee auxiliary Completed September 1993 transfer circuits 10.
Keowee auxiliary bus transfer logic completed September 1993 modification 11.
Keowee auxiliary bus transfer logic timing Completed September 1993 circuitry testing 12.
Keowee black start test Completed December 1992 Updated July 28, 1994 -
l
)
,Keowee Unit Protection Equipment, Design and Schedules esting Commitments:
v 13.
Trip function on low voltage at main step-Completed November 2, up transformer modification not to affect 1992 operating Keowee Unit 14.
Deletion of speed switch from field completed July 1992 circuits (Keowee Unit 1)
Completed November 1992 (Keowee Unit 2) 15.
Keowee load rejection test while aligned to Completed October 25, grid 1992 16.
Keowee zone relay protection single failure December 1994 (currently vulnerability administrative 1y controlled)
Other Keowee support items Equipment, Design and Testing Commitments:
17.
Keowee computer typer connection to Completed prior to Oconee computer power supply inverter 2 restart 18.
Keowee statalarm modification to power from Completed January 29, uninterruptible source 1993 19.
Events recorder replacement
- Switchyard Completed December 1993
- Keowee December 1994
- Oconee October 1994 20.
Review of IEB 79-27 related power supplies Completed January 28, 1993 Conimunications Equipment:
j 21.
Facility telephone system cable and battery Completed March 1993 backup 22.
Base radio system from Keowee control room Completed November 1992 to Oconee control room 23.
Hand held radios capable of transmitting Completed November 1992 from the Keowee generator floor to the Oconee control room 1
l i
Updated July 28, 1994 f
e Keowee Operator Training Upgrade Plan Schedule:
24.
Keowee personnel training on requirements Completed November 1992 of Operr.tions Management Procedure 5-2,
" Cuties and Responsibilities of Keowee Station Personnel" 25.
Task Qualification of Keowee operators to Completed November 1992 all Keowee operating, testing and maintenance procedures relating to the emergency operation of Keowee 26.
Job Analysis Completed May 1993 27.
Task Analysis (includes lesson plan Completed August, 1993 development and/or training and qualification guide) 28.
Individual operator knowledge and skills Completed December 1993 assessment and upgrade Keowee Emergency Response Procedure 29.
" Emergency Start Actuated" indicating light Completed October 1992 added to Keowee control boards.
30.
Keowee EOP Completed October 1992 Keowee Emergency Response Training 31.
Job Performance Measures (JPMs) developed Completed November 1992 to verify loss of auxiliary power or supply of power to Oconee from Keowee scenarios 32.
All Keowee personnel trained and qualified Completed November 1992 to all 5 JPMs 33.
Oconee licensed operators given walk-Since October 1992 through training on these JPMs 34.
Refresher training for oconee operators to Completed June 1993 perform remote startup and operation of Keowee from the Oconee control room 35.
All oconee shift operators (licensed and Completed August 1993 non-licensed) to be qualified to task i
001745801, " Perform Required Actions for an Emergency Start of the Keowee Hydro Unita" i
)
Updated July 28, 1994
,Oconee Loss of Offsite Power Procedure Schedules 36.
Revised to include all steps necessary to Completed December 1992 recover offsite power to Oconee 37.
Revised to include both dead bus and live completed December 1992 l
bus transfer options 38.
Live bus transfer functionally tested and completed March 1993 verified
)
l l
Updated July 28, 1994