ML20129H309
| ML20129H309 | |
| Person / Time | |
|---|---|
| Site: | Hope Creek  |
| Issue date: | 06/05/1985 |
| From: | Mittl R Public Service Enterprise Group |
| To: | Butler W Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8506070544 | |
| Download: ML20129H309 (4) | |
Text
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o O PS G Company Pubbc Sennce Electnc and Gas 80 Park Plaza, Newark, NJ 07101/ 201430-8217 MAlLING ADDRESS / P.O. Box 570, Newark, NJ 07101 Robert L. Mitti General Manager Nuclear Assurance and Regulation June 5, 1985 Director of Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission 7920 Norfolk Avenue Bethesda, Maryland 20814 Attention:
Mr. Walter Butler, Chief Licensing Branch 2 l
Division of Licensing l
Gentlemen:
SER OUTSTANDING ISSUE NO. 5 HOPE CREEK GENERATING STATION DOCKET NO. 50-354 Pursuant to Hope Creek Generating Station Safety Evaluation Report (SER) Outstanding Issue No. 5, described in SER Section 7.3.2.5, and as discussed at the February 15, 1985, NRC/PSE&G meeting concerning resolution of electromagnetic interference problems; Public Service Electric and Gas Company hereby submits the attached RFI Test Plan Summary for HCGS Class IE Digital Systems.
A commitment to provide the attached test plan for NRC review was made during the meeting referenced above, to demonstrate the adequacy of the Bailey 862 solid state logic modules.
Also, as committed during the February 15, 1985, meeting, PSE&G will provide the information noted below by 4
the dates indicated:
Schedule Action Item To NRC (1)
A description and summary of 7/15/85 EMI the results from verification 11/15/85 RFI l
tests to demonstrate immun'ity of the modified Bailey Control system against adverse EMI and RFI effects.
DR PD The Energy People -
95 4912 (4W 7 83
_'. 6 - l 3 n._
' Director Nuclear Reactor
_ Regulation.
72
.6/5/85 Schedule 1
Action Item-To-NRC 5(2)
-A. summary of-final resolution 7/15/85 of timeidelay and in-rush current considerations.
(3) 1 Additional detail regarding 8/85 the-administrative controls
,to.be' applied through-out_plantilife_ relative to potential RFI services such:as-two way radios, and' inductive sources such as
-welding machines.
(4)' verification:that.other 7/15/85 solid _statefcomponents are not effected byfthe Hope Creek EMI environment.
Should you have.any questions in'this regard, please' contact u s.'
Very truly.yours, bY ',/
Attachment:
'RFI Test Plan-Summary for HCGS Class lE Digital Systems C
D..H. Wagner USNRC Licensing Project Manager A. R.'Blough
-USNRC Senior Resident Inspector l
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ATTACHMENT RFI Test Plan Summary for HCGS Class 1E Digital Systems SCOPE FOR RFI TESTING The following HCGS Class lE digital systems will be tested to determine RFI susceptibility:
1.
Bailey 862 Logic System.
2.
. Emergency Load Sequencer.
3.
Redundant Reactivity Control System.
4.
Radiation Monitoring System.
The components in these systems are selected for testing since its solid state construction (TTL, CMOS, etc.,)
represents the most potentially susceptible equipment to UFI.
Since the components in these systems are representative of other solid state systems; the results of these tests will determine what actions, if any, are needed to eliminate RFI.
TASK DESCRIPTION 1.
Control Equipment Data and Analysis A.
Assemble documentation package to include:
Manuf acturers schematics of the four lE systems and the communications and security radio systems; circuit board layouts; O&M manuals; system block diagrams.
B.
Technical review of lA to identify potential problem areas.
C.
Assemble RFI/EMI specifications imposed on the manufacturer of the system and RFI test results of delivered equipment.
D.
Technical Review of IC.
E.
Prioritize systems by sensitivity and establish work schedule.
i AIll 4 6/5/85
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- TASK DESCRIPTION 4-12 ;-
SiteLDataJand Analysis-e a
A? -Assembleiarchitectural1 drawing package,-cable routing,-equipment placement,'buildingL features,;
and. fixed antenna: systems..
.B. :...Techn'ical_ review of=2A to determine significant1
- trouble spots, t
,. C.' : Review.' control' systems - locations '_ to determine
~;effect'ive shielding by building, cabinets,,and
. distance;
. Determine f requency andi ef fective radiated power.
'D.
(ERP) of all on-site transmissions.
E. '. Maxir field calculations for all radio emissions.'
F.
Electromagnetic Interference (EMI) levels for
'f welding equipment.
G.1' Measure-~ trip points of systems under worst case conditions ~(non-operating).
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Measure trip points of' live systems in operational
'and stand-by modes.
3..
Summarize and. Document Analyses A.
Generate. susceptibility matrix showing the extent of effort required to immunize each system.
L B.
~ Issue, report..
4.
Sol'utions
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A.
-Investigate.various solutions for problem systems-with respect to workable configurations.
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-AIll?5' 6/5/85.
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