ML19338E261
| ML19338E261 | |
| Person / Time | |
|---|---|
| Site: | Trojan File:Portland General Electric icon.png |
| Issue date: | 08/14/1980 |
| From: | Goodwin C PORTLAND GENERAL ELECTRIC CO. |
| To: | Engelken R NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION V) |
| References | |
| IEB-80-15, NUDOCS 8009250337 | |
| Download: ML19338E261 (3) | |
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p v-Ej y f August 14, 1980 Trojan Nuclear Plant Docket 50-344 License NPF-1
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- 11. Engelken, Director U. S. :!uclear Regulatory Commission Rer, ion V Suite 202, Walnut Creek Plaza 1990 :1. California Blva.
Walnut Creek, CA 94596
Dear Sir:
Attached is Portland General Electric Company's response to lE Bulle-tin 80-15, dated June 18, 1980, involving possible loss of the Emergency Notification Systen (:iES) with loss of of fsite powe r.
There were 12 manhours expended in conducting the review and preparation of the report required by this Bulletin.
Sincerely, A
./
CWh ff C. Goodwin, Jr.
Assistant Vice President Thermal Plant Operation and Maintenance CC/RQR/4sa5A2 Attachment c:
Mr. Lynn Frank, Director State of Oregon Department of Energy Director Office of Inspection and Enforcement U. S. Nuclear Regulatory Commission
?21 S //. Saron SPeet. Pocard Cey,n 9720 :
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s ATTAC11 MENT Trojan Nuclear plant Response to IE Bulletin 80-15 Item 1
'lithin 10 days of the date of this Bulletin, verify by direct inspection, in conjunct ion with the appropriate telephone company representative, that the ENS at your facility is powered in the manner described in the two enclosures.
Response
A visual inspection was conducted by a Trojan employee and an appropiate pacific Northwest Bell (local telephone company) representative within 10 days of the date of IE Bulletin 80-15.
It was determined the station package is powered from the telephone company.
Item 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.
Response
Item 2 is not applicable to Trojan.
Refer to item 1 response.
Item 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 f acility(ies) would remain fully operable from the facility (ies) to the NRC Operations Center in the event of loss of offsite power to your facility (ies). This is not intended a
to mean that an actual loss of oftsite power be executed.
Response
Since the ENS station package is powered from the telephone company, it is believed a test as described in item 3 is not necessary.
pacific Northwect Bell was contacted, and the following information, concerning the.r maintenance and testing procedures, was obtained, a.
The telephone company's emergency power supplies consist of a set of batteries and a D.C. diesel generator.
b.
The batteries are inspected and operationally tested weekly to ensure proper performance in the event of a loss of all electrical power.
.a,
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s c.
The diesel generator which supplies the batteries, is operationally tested monthly to ensure proper performance in the event of loss of all electrical power.
In light of this Information, it is believed the telephone company's emergency power supply is reliabic and adequate enough to maintain power to the ENS.
Item 4 If it is determined that a station package requiring on-site power is not connected to a safeguards instrumentation bus backed up by automatic transfer to batteries and an inverter or an equally reliable power supply, notify the NRC Operations Center via the ENS within 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br /> after such determination.
Response
This item is not applicable to Trojan.
Refer to Item 1 response.
Item 5 Prepare and issue an administrative procedure or directive which requires notification to the NRC Operations Center by commerical telephone or relayed message within one hour of the tine that one or more extensions of the ENS located at your facility (ies) is subsequently found to be inoperable for any reason.
Response
An existing administrative procedure concerning reportable occurances will be revised by August 22, 1980, to include notifying the NRC Operations Center within one hour of determining any part of the ENS is inoperable.
Item 6 Provide a written report, within 75 days of the issuance of this Bulletin, describing the result of the reviews required by items 1 and 2 above, the results of the testing required by item 3 and the procedures required by item 5.
Response
This report is provided pursuant to Item 6.
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