ML20049J961

From kanterella
Jump to navigation Jump to search
Discusses Duplication Between Facilities Re SER Scope & Schedule.Meeting W/Nrc Requested.Summary of site-specific FSAR Info Encl
ML20049J961
Person / Time
Site: Braidwood  Constellation icon.png
Issue date: 03/16/1982
From: Stiede W
COMMONWEALTH EDISON CO.
To: Harold Denton
Office of Nuclear Reactor Regulation
References
3646N, NUDOCS 8203290264
Download: ML20049J961 (3)


Text

i

(

  • Commonwealth Edison

^ ) one First Nationel Plaza. Chicago. Ilknois v

yr} Address R: ply Chicago, to:60690 Illinois Post Office Box 767 March 16, 1982 co r

  1. \

6 d Mr. Harold R. Denton, Director Of fice o f Nuclear Reactor Regulation U.S. Nuclear Regulatory Commission

- Yg@'

[*-h Washington, DC 20555 V +

% /

Subject:

Braidwood Station Units 1 and 2

  • SER Scope and Schedule NRC Docket Nos. 50-456 and 50-457

Dear Mr. Denton:

This is to describe the extent of duplication between the Byron and Braidwood Stations and to propose a Braidwood review program that is of reduced scope and schedule in ccmparison to that o f Byron.

Braidwooo Station is, to the maximum extent practical, a duplicate of Byron Station. All of the basic plant structures are being built from the same design drawings and specifications.

Equipment purchases for both stations were made simultaneously and the resulting plant systems are as identical as current technology permits. The plants differ only where necessary to accomodate the characteristics of their individual sites. They will, o f course, be operated by separate opcrating staffs but they both will be supported by the same strong of f-site technical support groups. In responding to NRC questions regarding Byron, all necessary changes were made to both plants.

As noted in the Byron SER, the NRC conclusions regarding the adequacy of duplicated features apply equally to both Byron and Braidwood. The white pages in the common FSAR for these plants delineate the extent o f duplication. Yellow or blue pages contain information which is specific to Braidwood or Byron, respectively.

At this point, only the yellow pages remain to be reviewed.

Attachment A to this letter translates the yellow pages into SER sections and identifies the NRC branches that need to be involved in the Braidwood review. It appears that 85% o f the Byron review need not be repeated for Braidwood. It also appears that a greatly compressed review schedule is practical.

Ep2ggyoungg f 60l e

S///

r We request the opportunity to meet with NRC management to discuss this matter further. Please contact me directly to arrange this meeting.

Very truly yours,

/ 't,tj Y c

Wayn

/ L. Stiede Asst. Vice President bg 3646N

o'*

ATTACHMENT A Summary o f Braidwood Site-Specific FSAR Information SER Section Topic Review Branch 1 Introduction and General Licensing Description 2 Site Characteristics Siting Analysis; Accident Evaluation; Hydrologic and Geotech-nical Engineering; Geoscience s 3.3 Wind & Tornado Loadings Structural Engineering 3.4 Water Level (Flood) Design Auxiliary Systems 3.5 Missile Protection Auxiliary Systems Siting Analysis 3.7 Seismic Protection Structural Engineering 5.2 Integrity o f Reactor Coolant Mechanical Engg.

Pressure boundary Materials Engg.

6.6 Inservice Inspection o f Class Materials Engg.

2 and 3 Components 8.2 Of fsite Power System Power Systems 9.2.3 Ultimate Heat Sink Auxiliary Systems 9.4.6 Pumo House Ventilation System Auxiliary Systems 10.4.5 Circulating Water System Auxiliary Systems 12.3.2 TMI Item II.B.2 Plant Shielding Radiological Assessment 13.1 Organizational Structure of Licensee Qualification Applicant 13.3 Emergency Planning Emergency Preparedness 15.4 Hadiological Consequences of Acciden t Evaluation Accidents 18 Human Factors Engineering Human Factors l Engineering 3646N