ML19280B132

Responds to 810901 Request for Addl Info from Franklin Research Ctr Re Util 810226 Proposed Tech Spec Mods for Scram Discharge Vol.Util Will Submit Amend to Unit 1 Rod Block Setpoint & Surveillance Requirements

ML19280B132
Person / Time
Site:	Hatch
Issue date:	10/01/1981
From:	Beckham J GEORGIA POWER CO.
To:	Office of Nuclear Reactor Regulation
References
TAC-42218, TAC-42219, TAC-43684, TAC-43685, NUDOCS 8110060159
Download: ML19280B132 (2)

Text

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Your letter cated Secte ce: 1, 1981, conveye: t: Gecrgia Peeer Comany a recuest f= actitional inf: =ation fro:t Framlin Resear::n Center (FRC) concer .in;; our Fe:ruary 26, 1981, su:xnittal cf ;::co sed mo ificatica.s to the Te::nnical Soe:ifications regarting the scam cis narge veJ.ume and associated instrumerts. The fellowing inf mation is sup;;11ec in response tc the FRO recuest:

Item 1 The mocal Te::nnical Soetifications containec in your July 7, 1980, letter pla:BC the scram cis narge vclume vent and Orain valves in section 3/4.1.3.1 ::' the mocal TechnW Specifications; '"fontr:1 Rod Operacility". Item-1 Of the FRC recuest askeO f:r a reference to the section cf the Tecnnical Specifications wnere the recuestec enange is ine=p=ated.

3.:: Fe ruary 26, 1981, letter ;;; pese: that trese '.'alves be place:: in t.*e *=% of power coerated containment isclation valves instead Of the

• 03-tr:1 Rod Opec.ty" se:: tion. These valves to not affect contr:1 rod operability at Plant Hat:n. The ;:lant unicus geometry of tr:is system at Plant Hat:n all ws free conar.ication between t*e s=am level swit:nes anc the scam cis narge voltre (SDv). T!us, the level suiteres, not *:he vent and crain valves, ;:: tect the scram function, and in a sense control roc' opera::llity, by ::rovicing assurance that the SDV is empty. The vent ano crain valves are 1:ccitant, however, insofar as t*ey ::: vide a containnent ;:ressure bouncary curing t*e *dme that a s: ram is sesleo-in. F: this reason we have enesen to ;: lace t*e valves in tre tables of con

• h nt is:1stion valves. The surveillance re"d ements a:t therefere cifferent than these ;:roo sed by the model Technical Specificati:rrs in eroer *4 be consistent with t*e recui.v.ts f= :ther eccaracle contairsten* isclation valves. .

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TER-C5506-73 Georgia Power A CirectcI of Nuclear Reacter Regulatior U. 5. toclear Regulatory carrdssion Octcoer 1, 1981 .

Page Two Items 2 and 3 As incicated in our October 10, 1980, letter the scram level swit: ries _

am currently covered by Technical Specifications c6 each unit. Fct mit 1, please refer to Specifications 3.1 and 4.1, Tables 3.1-1 and

• 4.1-1, item 7. Fcr thit 2, the appropriate reference is Specification 3/4.3.1, tables 3.3.1-1 and 4.3.1-1, item 8. The instrument functional test frequency fcr Unit 1 is once every three :nonths as initially approved by tne Comission on issuarce of the Lnit 1 Operating License.

We have ret proposed to modify this specification.

Items 4, 5 and 6 ._

The SDV rod clock setpoint and surveillance requirements are sceci'fied in Unit 2 Technical Soecification Section 3.3.5 and Tables 3.3.5-1, J.3.5-2 and 4.3.5-1. In reviewirq the Technical Specifications for our February 26, 1981 submittal, the auence of a comparable specification in the tnit 1 Technical Specifications was rot noted. We agree that it is anviate to soecify the limits and surveillance rery/f7ments for the SDV rod block alarm swit::h and will propese an amencment to the init I license to incorporate recuirements similar to thase contaired in our lnit 2 Specifications referenced above. ,

ve'y truly yours,

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J. T. Beckham, Jr.

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