ML20086B234
| ML20086B234 | |
| Person / Time | |
|---|---|
| Site: | Fort Saint Vrain  |
| Issue date: | 10/24/1974 |
| From: | Walker R PUBLIC SERVICE CO. OF COLORADO |
| To: | Anthony Giambusso US ATOMIC ENERGY COMMISSION (AEC) |
| Shared Package | |
| ML20086B210 | List: |
| References | |
| NUDOCS 8311170109 | |
| Download: ML20086B234 (1) | |
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public Service Company 4 O cIlo m ilo P. O. Bo. 361, Platteville, Colorado 80651
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Docket No. 50-267 Mr. A. Giambusso, Deputy Director i
Reactor Projects Directorate of Licensing United States Atomic Energy Commission l
Washington, D. C.
20545
SUBJECT:
Revised Electrical Circuitry for Emergency Load Sequence Programmers
Dear 'tir. Giambusso:
In a letter to you dated August 19, 1974, Public Service Company of Colorado proposed a circuit modification to correct a common mode failure that had been uncovered during the running of a Surveillance Test on the Diesel-Generator Load Sequencing Programmers.
It would be the intent of the Public Service Company to install the wiring and relaying associated with this modification with regard to separation of components and electrical isolation to the same criteria 4
as was used for initial installation of the reactor protection system.
-i Very truly yours, f h ii.N { bl.
R. F. Walker.
Vice President Engineering and Planning Electric Department RFW:11 831117o3o9 7433l4 gDRADOCK 05000267 PDR p3-dd'[
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