ML19332A166

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Responds to IE Bulletin 80-19 & Revision 1,re Failure of C-E mercury-wetted Matrix Relays in Reactor Protective Sys. Identified Relays Are Not Used in facility.Twenty-four Manhours Expended on Review
ML19332A166
Person / Time
Site: Crystal River Duke Energy icon.png
Issue date: 08/21/1980
From: Richard Bright
FLORIDA POWER CORP.
To: James O'Reilly
NRC OFFICE OF INSPECTION & ENFORCEMENT (IE REGION II)
References
IEB-80-19, NUDOCS 8009100933
Download: ML19332A166 (2)


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3 6 Florida Power C O M PO R A T eO N August 21, 1980 File:

3-0-3-a-4 Mr. J. P. O'Reilly Director U.S. Nuclear Regulatory Commission Office of Inspection and Enforcement Suite 3100 101 Marietta Street N. W.

Atlanta, GA 30303

Subject:

Crystal Rijv r-Unit-3 Docket N K 50-3J V Operating License NO. DPR-72 I.E.Bulletin 80-19; Rev. O and Rev.1 FAILURE OF MERCURY-WETTED MATRIX RELAYS IN REACTOR PROTECTIVE SYSTEMS OF OPERATING NUCLEAR POWER PLANTS DESIGNED BY COMBUSTION ENGINEERING Dear Mr. O'Reilly In response to the subject Bulletin, we have detemined that no C.P. Clare Model HG2X-1011 Mercury-wetted Matrix Relays are in use in the logic matrix of the RPS at Crystal River Unit No. 3.

Therefore, no additional information will be provided.

As you requested, the approximate manhours expended on this Bulletin by Plant and Engineering personnel, in conduct of the review and preparation of the report is 24 hours2.777778e-4 days <br />0.00667 hours <br />3.968254e-5 weeks <br />9.132e-6 months <br />.

i 8009100f33 General Office 3201 in:rty-fourtn street soutn. P O Box 14o42. St Petersburg. Florida 33733 813-866-5151

7ik Mr. J. P. O'Reilly Page Two August 21, 1980 Please contact.this office if you require any additional dis-cussion concerning our response.

Very truly yours, FLORIDA POWER CORPORATION Ronhld'M. Bright Acting Manager Nuclear Support Services RMBekcR01(D8-3) cc: Director Division of Reactor Operations Inspection Office of Inspection and Enforcement U.S. Nuclear Regulatory Commission Washington, DC 20555 e

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