ML20086B234

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Informs of Intent to Install Wiring & Relaying Associated w/830819 Proposed Mod to Electrical Circuitry by Same Criteria Used for Initial Installation of Reactor Protection Sys
ML20086B234
Person / Time
Site: Fort Saint Vrain Xcel Energy icon.png
Issue date: 10/24/1974
From: Walker R
PUBLIC SERVICE CO. OF COLORADO
To: Giambusso A
US ATOMIC ENERGY COMMISSION (AEC)
Shared Package
ML20086B210 List:
References
NUDOCS 8311170109
Download: ML20086B234 (1)


Text

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8 o 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 4

separation of components and electrical isolation to the same criteria 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 -

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