ML19339B317

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Requests That Util Compare Emergency Power Sys Current Design W/Encl NRC Positions.Also Requests Analysis Supporting Sys Design Capabilities & Protective Features or Propose Mods to Meet NRC Positions
ML19339B317
Person / Time
Site: Yankee Rowe
Issue date: 06/03/1977
From: Schwencer A
Office of Nuclear Reactor Regulation
To: Groce R
YANKEE ATOMIC ELECTRIC CO.
Shared Package
ML19339B318 List:
References
NUDOCS 8011060732
Download: ML19339B317 (2)


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June 3, 1977 Docket !!o. 50-29 Yankee Atomic Electric Coapany d

ATTN: fir. Robert H. Groce i=-

Licensing Engineer iEr 20 Turnpike Road h=

Westboro, Massachusetts 01581

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Gentlemen:

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RE:

YANKEE-R0WE ATOMIC POWER STATION We are currently reviewing the onsite emergency power systems of all operating nuclear power facilities to assess the susceptibility of their safety related electrical equipment with regard to (1) sustained degraded voltage conditions at the offsite power sources and (2) inter-m action between the offsite and onsite emergency power systems.

S We have completed our review of licensee responses to our previous generic request for information relative to the electrical power

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distribution systens.

Based on this initial review, we have prepared g

the Safety Evaluation and Statement of Staff Positions contained in.

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We request that you compare the current design of the emergency power h

systems at your facility (ies) with the Staff Positions stated in the enclosure and:

(1) propose plant modifications as necessary to meet the Staff Positions, or (2) provide a detailed analysis which shows your facility design has equivalent capabilities and protective features.

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Additionally, we require that certain technical specifications be incorporated into all facility operating licenses.

Model technical specifications, consistent with.the Staff Positions contained in, are provided in Enclosure 2.

Accordingly, we request that you apply, within forty-five days of the receipt of this letter, for an anendaent to your facility operating license (s) to incor;, orate comparable technical specifications to those

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presented in the enclosura.

Additicnally, you shoJld provide a description and a schedule for the conpletion of any plant associated modifications, t

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S 7 Yankee Ato ic Electric Conpany JUN 3 1977 [ If you 1: ave any questions on this matter, please contact us. E Sincerely, A. Schwencer, Chief h-Operating Peactors Branch #1 U Division of Operating Reactors [ 5:

Enclosures:

DISTRIBUTION: h* 1. Staff Positions Docket 2. I oriel Technical NRC PDR P" Specifications Local PDR if ORB-1 Reading .x_.. ASchwencer cc w/caclosures: SSheppard i :. fir. Donala C. Allen, President ABurger l' Yankee Atonic Electric Company DJaffe 20 Turnpike Road DEisenhut l' ~ !!estooro, Massachusetts 01581 Attorney, OELD i" ~ I&E(3) i" Greenfield Public Library JMcGough 402 I ein Street JRBuchanan Greenfield,liassachusetts 01581 TBAbernathy j-ACRS (16) I- [: i:i; b b:: )l 00R:.088-L 00R:.0RB-L. DOR o e=

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