ML19326D657
| ML19326D657 | |
| Person / Time | |
|---|---|
| Site: | Dresden, Quad Cities, Zion  |
| Issue date: | 06/18/1980 |
| From: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | Reed C COMMONWEALTH EDISON CO. |
| References | |
| NUDOCS 8007030037 | |
| Download: ML19326D657 (1) | |
Text
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UNITED STATES NUCLEAR REGULATORY COMMISSION S
REGION lli o
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799 ROOSEVELT ROAD e
o GLEN ELLYN,ILLINDIS 60137 Docket Nos. 50-10, 50-237, 50-249; 50-254, 50-265; 50-295, 50-304 Commonwealth Edison Company ATTN:
Mr. Cordell Reed Vice President Post Office Box 767 Chicago, IL 60690 Gentlemen:
Enclosed is IE Bulletin No. 80-15 which requires action by you with regard to your power reactor facilities and/or fuel facilities with an operating li' cense.
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 reports 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, 1
James G. Kepp er Director
Enclosure:
IE Bulletin No. 80-15 cc w/ enc 1:
Mr. D. L. Peoples, Director Director NRR/DPM of Nuclear Licensing Director NRR/ DOR Mr. B. B. Stephenson, PDR Station Superintendent Local PDR Mr. N. Kalivianakis, Plant NSIC Superintendent TIC Mr. N. Wandke, Plant Mr. Dean Hansell, Office of Superintendent Assistant Attorney General Central Files P
R00 7 o s 003 f Q
UNITED STATES SSINS fio.:
6820 NUCLEAR REGULATORY COMMISSION Accessions No.:
OFFICE OF INSPECTI0fl AND EllFORCEMEtiT 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 ENS 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 is 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.
J Actions to be taken by all licensees:
1.
Within 10 days of the date of this Belletin, verify by direct i
ir:pection, 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 Bulletin, to 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 intn
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