ML20093H754
| ML20093H754 | |
| Person / Time | |
|---|---|
| Site: | Salem  |
| Issue date: | 07/13/1984 |
| From: | Liden E Public Service Enterprise Group |
| To: | Murley T NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION I) |
| References | |
| IEB-84-02, IEB-84-2, NUDOCS 8407250265 | |
| Download: ML20093H754 (4) | |
Text
v O PSEG Public Service Electric and Gas Company P.O. Box 236 Hancocks Bndge. New Jersey 08038 Nuclear Department July 13, 1984 Dr. Thomas E.
Murley, Administrator U..S.
Nuclear Regulatory Commission Region 1 631 Park Avenue King of Prussia, Pa.
19406
Dear Dr. Murley:
IE BULLETIN 84-02 FAILURES OF GENERAL ELECTRIC TYPE HPA RELAYS IN USE IN CLASS lE SAFETY SYSTEMS SALEM GENERATING STATION UNITS NO. 1 AND 2 DOCKET NOS. 50-272 AND 50-311 The purpose of IE Bulletin 84-02 is to inform users of General Electric Type HFA relays of relay failure due to the degradation of the operating coils in normally energized relays, and a request for users to indicate to the NRC, plans and schedules for implementing corrective measures.
A summary of the applicable sections and PSE&G's method of compliance is presented below:
ITEM la Develop plans and schedules for replacing (1) Nylon or Lexan coil spool-type HPA relays used in normally enargized safety-related applications and (2) Nylon coil spool-type HPA relays-used in normally de-energized safety-related 1 applications.
The entire replacement program should be completed within two years from the date of this bulletin.
The replacement scheduling should consider the following recommended priority:
Nylon or Lexan normally energized - Reactor Trip System 8407250N65840713 PDR-ADOCK 05000272 0
PDR The Energy People
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6 Dr. Thomas E. Murley 7/13/84
- Nylon or Lexan normally energized - other Safety-Related Applications Nylon normally de-energized - Reactor Trip System Nylon normally de-energized - other Safety-Related Applications
RESPONSE
Presently there are a total of 128 HFA relays with Lexan or Nylon Coil spools installed in Salem Units 1 and 2.
All relays are normally de-energized and function in equipment purchased as safety-related.
Replacement cores and coils for all HPA relays are being purchased.. Replacements will be made during outages or as relays are made available through tagging out of equipment for routine surveillance or maintenance.
Availability of replacement cores and coils from General' Electric remains a source of possible delays.
It is anticipated that all coils will be replaced by March 1986.
ITEM lb During the ~ period before relay replacement, develop and implement surveillance plans that include:
1.
Monthly functional tests of all RTS normally energized relays that verify relay contacts change state when the relay coil is de-energized.
2.
Visual inspections of all safety-related normally energized relays as soon as practical upon receipt of this bulletin.
Thereafter, similar inspections should be accomplished in conjunction with the monthly functional test.
l
RESPONSE
A visual inspection was performed on all safety-related relays.
Five (5) coil spools were found to have evidence of cracking and were replaced in kind pending receipt of new
- coils.
Although the relay coils are inspected as part of the routine relay maintenance, a procedure for regular inspections of the subject HFA relays will be prepared by September 1984 and implemented to insure relay integrity prior to replace-ment.
7 V
Dr. Thomas E.
Murley 7/13/84 ITEM Ic Provide a basis for continuing operation for the period of time until the normally energized relays are replaced.
RESPONSE
As indicated in the response to Item la, all the relays are normally de-energized.
Accordingly, Item Ic is not applicable
'to Salem Units 1 and 2.
Should you have any questions, please contact us.
Sincerely, E.
A.
Liden Manager - Nuclear t
Licensing and Regulation Attachments C
Mr. Donald C.
Fischer-Licensing Project Manager Mr. James Linville Senior Resident Inspector
.U.S.
Nuclear Regulatory Commission-
. Document Control Desk Washington, D.
C.
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RICHARD A. UDERITZ, being duly sworn according to law deposes and-says:
I am a Vice President of Public Service Electric and Gas Company, and such,.I find that matters set forth in our response dated July 13, 1984, to IE BULLETIN 84-02 " Failures of General
_ Electric Type'HPA Relays in use in Class lE Safety Systems," are true to the best of my knowledge, information and belief.
$w kh RICHARD A. UDERlTZ W Subscribed and sworn to before me this-l 'b" day of duvv 1984
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