ML17251A828
| ML17251A828 | |
| Person / Time | |
|---|---|
| Site: | Ginna  |
| Issue date: | 10/27/1986 |
| From: | Kober R ROCHESTER GAS & ELECTRIC CORP. |
| To: | Lear G Office of Nuclear Reactor Regulation |
| References | |
| NUDOCS 8610300392 | |
| Download: ML17251A828 (4) | |
Text
REGULATOR NFQRNATION DISTRIBUTION TEN (R IDS)
ACCESBIQN NBR: 8610300392 DQC. DATE: 86/ i0/27 NOTARIZED:
NO DOCKET I FACIL:50-244 Robev t Emmet Qinna Nuclear Plant> Unit 1> Rochester Q
05000244 AUTH. I JAIME AUTHOR AFFILIATION KOBER> R. W.
Rochestev Qas 5 Electric Cov'p.
REClr. NAI'>E RECIPIENT AFFILIATION LEAR> Q. E.
PWR ProJect Directorate i
SUBJECT:
Submits v equested addi info v e isolation devices used in conJunction e/BPDS. Foxboro Model N66B cuv rent v epeatev s av e isolation devices used for v eactor pv otection, sgs 5 ESFAS inputs to SPDS.
DISTRIBUTION CODE:
A003D COP IEB RECEIVED: LTR ENCL SI ZE:
TlTLE: QR/Licensing Submittal:
Supp 1 i to NUREQ-0737(Qeneric Ltr 82-33)
NOTES: License Exp date in accov'dance vith iOCFR2> 2. 109<9/i9/72).
05000244 REC IP IENT ID CODE/NANE PWR-A ADTS PWR-A EICSB PWR-A PDi LA DI lANNI>D PWR-A RSB INTERNAL. ADN/LFNB NRR BWR ADTB NRR PWR-B ADTB
/EIB Q FILES EXTERNAL:
LPDR NSIC COPIES LTTR ENCL 2
ii RECIPIENT ID CODE/NANE PWR-A EB PWR-A FOB PWR-A PDi PD PWR-A PSB IE/DEPER/EPB NRR PAULSON> W NRR/DBRO EMRIT NRR/DSRO/RBIB RQNi NRC PDR COPIES LTTR ENCL ii 7
TOTAL NUNBER OF COP IEB REQUIRED:
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~ Qefts ROCHESTER GAS AND ELECTRIC CORPORATION o 89 EAST AVENUE, ROCHESTER, N.Y. 14649-0001 ROGER W. KOBER VCe RRESIDENT ELECTRIC &STEAM PRODUCTION V
October 27, 1986 TEI.EPHONE AREA CODE Tle 546.2700 Director of Nuclear Reactor Regulation Attention:
Mr. George E. Lear> Chief PWR Project Directorate No.
1 U.S. Nuclear Regulatory Commission WashingtonE D
C 20555
Subject:
Safety Parameter Display System Isolation R. E. Ginna Nuclear Power Plant Docket No. 50-244
Dear Mr. Lear:
An RGSE letter dated May 23E 1986 provided information concerning isolation devices used in conjunction with the Safety Parameter Display System (SPDS).
That information has been discussed on several occasions by RGGE personnel and NRC reviewers leading to a request for the additional information provided below.
The isolation devices used for Reactor Protection System (RPS) and Engineered Safety Features Actuation System inputs to the SPDS system are Foxboro Model M66B current repeaters.
Voltage withstand tests on these isolators are documented in WCAP 7685-A.
The voltages applied to the ouput terminals during these tests include 10E 80E 130 and 250 volts d-c (both polarities);
and 115 and 480 volts a-c.
The SPDS multiplexers at which the outputs are terminated>
have 120 volt a-c power inputs as described in our previous submittal.
The power supplied internal to the multiplexers have a
maximum output of 48 volts d-c.
The tests referenced aboveE therefore>
assure that the RPS and ESFAS isolation devices are not subject to stresses higher than their withstand capability by the new SPDS multiplexers.
Very truly yoursE 8b>pgpp392 Gppp2p4'i 8bl.p27
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