ML19337A141
| ML19337A141 | |
| Person / Time | |
|---|---|
| Site: | La Crosse File:Dairyland Power Cooperative icon.png |
| Issue date: | 08/08/1980 |
| From: | Linder F DAIRYLAND POWER COOPERATIVE |
| To: | James Keppler NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION III) |
| References | |
| IEB-80-19, LAC-7080, NUDOCS 8009090010 | |
| Download: ML19337A141 (1) | |
Text
__
N C-D DA/RYLAND h
h COOPERAT/VE po sox si7 2615 EAST AV SOUTH
- LA CROSSE WISCONSIN 54601 (608; 788-4000 August 8, 1980 In reply, please refer to LAC-7080 DOCKET NO. 50-409 Mr. James G.
Keppler Regional Director U.
S. Nuclear Regulatory Commission Directorate of Regulatory Operations Region III 799 Roosevelt Raod Glen Ellyn, Illinois 60137
SUBJECT:
DAIRYLAND POWER COOPERATIVE LA CROSSE BOILING WATER REACTOR (LACBWR)
PROVISIONAL OPERATING LICENSE NO. DPR-45 IE BULLETIN NO. 80 FAILURES OF MERCURY-WETTED MATRIX RELAYS IN REACTOR PROTECTIVE SYSTEMS OF OPERATING NUCLEAR POWER PLANTS DESIGNED BY COMBUSTION ENGINEERING
Reference:
(1)
NRC Letter, Keppler to Linder, dated July 31, 1980.
Gentlemen:
Your letter (Reference) requested that we determine whether or not mercury-wetted Relays are used in the Reactor Protective Systems (RPS) of our facility.
Combustion Engineering did not design our facility and we have determined that mercury-wetted matrix relays are not used in the RPS.
Also, as requested in Reference 1, the estimated manpower expended in the conduct of the review and preparation of this report was 2.5 hours5.787037e-5 days <br />0.00139 hours <br />8.267196e-6 weeks <br />1.9025e-6 months <br />.
If there are any questions regarding this response, please contact us.
Very truly yours, DAIRYLAND POV R COOPERATIVE AM
(
Frank Linder, General Manager FL:WRN:af cc:
Director, Division of Reactor Operations Inspection Office of Inspection and Enforcement kNg3g1980 U.
S.
Nuclear Regulatory Commission Washington, D. C.
20555 8000090010 j