ML20206T237

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Forwards General Comments on Proof & Review Tech Specs Re Mitigation of Certain High Energy Line breaks,diesel-driven Auxiliary Feedwater Pump Batteries & Seismic Monitoring Equipment
ML20206T237
Person / Time
Site: Braidwood  Constellation icon.png
Issue date: 07/01/1986
From: Miosi A
COMMONWEALTH EDISON CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
1833K, NUDOCS 8607080053
Download: ML20206T237 (2)


Text

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  • _ Commonwealth Edison j

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.~." 72 West Adams Street. Chicf oo, Illinois .

V' Address Riply to: Post offica Box 767

, Chicago, Illinois 60690-0767 July 1, 1986 Mr. Harold R. Denton, Director U.S. Nuclear Regulatory Commission  ;

Office of Nuclear Reactor Regulation Washington, DC. 20555

Subject:

Braidwood Station Units 1 & 2 Proof & Review Technical Specification Comments NRC Docket 50-456 & 50-457 References (a): April 7, 1986 A.D. Miosi letter to H.R. Denton (b): June 10, 1986 J.A. Stevens letter to D.L. Farrar

Dear Mr. Denton:

Enclosed are our general comments on the Proof & Review Tech Specs concerning the three open items: mitigation of certain high energy line breaks, diesel-driven auxiliary feedwater pump batteries, and seismic monitoring equipment.

j Our basic positions concerning these open items remain the same.

For mitigation of certain high energy line breaks, we feel that the potential for impact on the capability to safely operateoor shutdown the plant is minimal. In addition, we have concluded that Technical Specifications are not necessary based on the Technical Specification Improvement Program criteria under consideration by the NRC and Industry.

For diesel-driven auxiliary feedwater pump batteries, we believe the batteries are totally covered under the technical j specification definition of operability as it applies to the diesel-driven auxiliary feedwater pump. Examples exist in the Tech 4 Specs which support this application under the definition of

operability. In addition, previous staff positions have not included these batteries in the Tech Specs.

i Finally, concerning the seismic monitoring equipment, we feel that full compliance with the appropriate regulation and Standard Review Plan has'been met. The design is identical with

- Byron Station as accepted in its SER with one exception. This difference was applicable for Byron, but not applicable at Braidwood.

B607080053 860701 j

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ADOCK 05000456 PDR 0[ 0

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r% s i A more detailed response addressing the open items will be provided shortly. Should you have comments concerning this issue please contact this office.

One signed original and fifteen copies are provided for your review.

Very truly yours.

DWW A. D Miosi Nuclear Licensing Administrator

/klj cc: J.A. Stevens 1833K i

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