ML19326D667
| ML19326D667 | |
| Person / Time | |
|---|---|
| Site: | Dresden  |
| Issue date: | 06/19/1980 |
| From: | Pappas H NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| To: | NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| NUDOCS 8007030052 | |
| Download: ML19326D667 (3) | |
Text
.
, LOCAL PDR e ceg'o UNITED STATES 8
NUCLEAR REGULATORY COMMISSION O
- . r REGION 111 D[
799 ROOSEVELT ROAD 8
Q GLEN ELLYN, ILLINOIS 6o137
,o IJUN 1 91980
_ MEMORANDUM FOR: Those on Attached List FROM:
Helen Pappas, Chief, Administrative Branch
SUBJECT:
IE BULLETIN NO. 80-15 The enclosed IE Bulletin No. 80-15 titled "Possible Loss of Emergency Notification System (ENS) With Loss of Off-Site Power" was sent to the following licensees for action on June 18, 1980:
American Electric Power Company Indiana and Michigan Power Company Cook 1, 2 (50-315, 50-316)
Commonwealth Edison Company Dresden 1, 2, 3 (50-10, 50-237, 50-249)
Quad-Cities 1, 2 (50-254, 50-265)
Zion 1, 2 (50-295, 50-304)
Consumers Power Company Big Rock Point (50-255)
Palisades (50-255)
Dairyland Power Company LACBWR (50-409)
Iowa Electric Light & Power Company Duane Arnold (50-331)
Northern States Power Company Monticello (50-263)
Prairie Island 1, 2 (50-282, 50-306)
Toledo Edison Company Davis-Besse 1 (50-346)
Wisconsin Electric Power Company Point Beach 1, 2 (50-266, 50-301) 80070300ff Q
BUN 19 G80 Those on Attached List
- Wisconsin Public Service Corporation Kewaunee (50-305)
Kerr-McGee Nuclear Corporation (70-925, 70-1193) d T/
Helen Pappas, Chief Administrative Branch
Enclosure:
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Addressees - Memorandum dated June 19, 1980 Central Files
-Reproduction Unit NRC 20b h
l
UNITED STATES SSINS No.:
6820 NUCLEAR REGULATORY COMMISSION Accessions No.:
OFFICE OF INSPECTION AND ENFORCEMENT 8005050072 WASHINGTON, D.C.
20555 June 18, 1980 IE Bulletin No. 80-15 POSSIBLE LOSS OF EMERGENCY NOTIFICATION SfSTEM (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.
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 modifi::ations and provide such a connection.
3.
All facilities are to deve op and conduct a test, within 60 days of the issuance of this Builetin, 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 intaMod g gprygggYg Q yfqq)WE6M to mean that an actual y
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