ML19326D663
| ML19326D663 | |
| Person / Time | |
|---|---|
| Site: | Davis Besse  |
| Issue date: | 06/18/1980 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Crouse R TOLEDO EDISON CO. |
| References | |
| NUDOCS 8007030046 | |
| Download: ML19326D663 (1) | |
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CLEN ELLYN, ILLINOIS 60137 18880 Docket No, 50-346 Toledo Edison Company ATTN:
Mr. Richard P. Crouse Vice President Energy Supply Edison Plaza 300 Madison Avenue Toledo, OH 43652 Gentlemen:
Enclosed is IE Bulletin No. 80-15 which requires action by you with re-gard to your power reactor facility and/or fuel facility with an operating license.
In order to assist the NRC in evaluating the value/ impact of each bulletin on licensees, it would be helpful if you would provide an estimate of the manpower expended in conduct of the review and preparation of the report required by the bulletin.
Please estimate separately the manpower associ-ated with corrective actions necessary following identification of problems through the bulletin.
Should you have any questions regarding this bulletin or the actions re-quired by you, please contact this office.
Sincerely,
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James G. Keppler Director
Enclosure:
IE Bulletin No. 80-15 cc w/ encl:
Mr. T. Murray, Station NSIC Superintendent TIC Central Files Harold W. Kohn, Power Director, NRR/DPM Siting Commission Director, NRR/ DOR Helen W. Evans, State PDR of Ohio Local PDR "007080@0 AM
UNITED STATES SSINS No.: 6820 NUCLEAR REGULATORY COMMISSION Accessions No.:
0FFICE OF INSPECTION AND ErlFORCEMENT 8005050072 ~
WASHINGTON, D.C.
20555 June 18, 1980 IE Bulletin No. 80-15 POSSIBLE LOSS OF EMERGENCY NOTIFICATION SYSTEM (ENS) WITH LOSS OF 0FFSITE POWER In the past year, there have been two occurrences where a loss of off-site power has resulted in a loss of communications between a power reactor facility and the NRC Operations Center via the Emergency Notification System (ENS). The most recent occurrence was at Indian Point Unit 2 on June 3,1980.
The earlier event occurred at the Davis Besse facility on October 15, 1979 and resulted in the issuance of IE Circular 80-09.
The installation of the ENi requires a station package which operates on 110 VAC.
In some cases, the station package is located at the local telephone company which supplies the required power for normal operation and emergency power for operation during abnormal occurrences, but in many cases, the package 1s located at the site and is served by on-site power.
In some cases where the station package is served by on-site power, the station package has not been backed
-up by emergency power.
NRC data indicates that the station packages for each facility are powered in the manner described in the two enclosures.
Actions to be taken by all licensees:
1.
Within 10 days of the date of this Bulletin, verify by direct inspection, in conjunction with the appropriate telephone company representative, that the ENS at your facility is powered in the manner described in the two enclosures.
2.
Those facilities.which have station packages requiring on-site power, but which are not connected to a safeguards instrumentation bus which is backed up by batteries and an inverter or equally reliable power supply, shall make necessary modifications and provide such a connection.
3.
All facilities are to develop and conduct a test, within 60 days of the issuance of this Bulleth, v verify that all extensions of the ENS located at your facility (ies) would remain fully operable from the facility (ies) to the NRC Operations Center in the event of a loss of offsite power to your facility (ies). This is not inta W jgggggggy&Mq@E3M to mean that an actual DUPLICATE DOCUMENT Entire document previously entered into s stem under:
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